Transfer of Copyright Agreement
Transfer of Copyright Agreement | |
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Forward by the Editors-in-Chief
Forward by the Editors-in-Chief | |
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Editorial Board and Reviewers
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E-Book
CAMMER 2018 Vol. 1 No. 1 | |
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Proceedings
Paper ID: 1
Sheet resistivity and morphological analysis of silver nanoparticles-filled epoxy conductive ink
By: R. Hamidi, M.A. Salim and G. Omar
Abstract:
This paper presents measurement of sheet resistivity of silver nanoparticles-filled conductive ink with Four-Point probe. The Four-Point probe was used to measure the sheet resistance value of the silver nanoparticle-filled epoxy conductive ink sample in ohms-per-square, then the resistivity volume is in ohms-cm, and finally the thickness of sample also be measured too. Based on the results, some percentage of conductive ink was detected the presence of the resistivity value. The highest resistivity value was detected in low percentage of conductive ink loading, while the lowest resistivity was founded in high percentage of conductive ink loading, respectively. On the other hand, the dispersion of silver nanoparticles-filled epoxy also been investigated in morphological study through light microscopy analysis. The dark spot was presumed as a silver nanoparticles, and the rest were presumed the filled epoxy.
Sheet resistivity and morphological analysis of silver nanoparticles-filled epoxy conductive ink
By: R. Hamidi, M.A. Salim and G. Omar
Abstract:
This paper presents measurement of sheet resistivity of silver nanoparticles-filled conductive ink with Four-Point probe. The Four-Point probe was used to measure the sheet resistance value of the silver nanoparticle-filled epoxy conductive ink sample in ohms-per-square, then the resistivity volume is in ohms-cm, and finally the thickness of sample also be measured too. Based on the results, some percentage of conductive ink was detected the presence of the resistivity value. The highest resistivity value was detected in low percentage of conductive ink loading, while the lowest resistivity was founded in high percentage of conductive ink loading, respectively. On the other hand, the dispersion of silver nanoparticles-filled epoxy also been investigated in morphological study through light microscopy analysis. The dark spot was presumed as a silver nanoparticles, and the rest were presumed the filled epoxy.
Full paper: Paper ID 1 | |
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Paper ID: 2
Measurement of sheet resistivity on silver nanoparticles-filled epoxy conductive ink using thermoplastic polyurethane
By: N.A.S. Mahamad Kamel, M.A. Salim and G. Omar
Abstract:
This paper investigate the measurement of sheet resistivity in silver nanoparticles-filled epoxy conductive ink using thermoplastic polyurethane. Firstly, this study was conducted by formulating the conductive ink samples and then carried by experimental testing. The Jandel’s Four-Point probe was used to measure the sheet resistivity of silver nanoparticles-filled epoxy conductive ink. The 60 % of filler loading was chosen accordingly to the resistivity behavior and also the economic criteria. Nevertheless, the microscopy study was added to check the dark spot of the silver nanoparticle-filled epoxy conductive ink.
Measurement of sheet resistivity on silver nanoparticles-filled epoxy conductive ink using thermoplastic polyurethane
By: N.A.S. Mahamad Kamel, M.A. Salim and G. Omar
Abstract:
This paper investigate the measurement of sheet resistivity in silver nanoparticles-filled epoxy conductive ink using thermoplastic polyurethane. Firstly, this study was conducted by formulating the conductive ink samples and then carried by experimental testing. The Jandel’s Four-Point probe was used to measure the sheet resistivity of silver nanoparticles-filled epoxy conductive ink. The 60 % of filler loading was chosen accordingly to the resistivity behavior and also the economic criteria. Nevertheless, the microscopy study was added to check the dark spot of the silver nanoparticle-filled epoxy conductive ink.
paper_id_2.pdf | |
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Paper ID: 6
Modelling and simulation of assembled components of an integrated diffusion method
By: A.N. Yusoff and M.A. Salim
Abstract:
This paper presents the modelling and simulation of modified microwave oven in order to improve the curing process of silver nanoparticles (AgNPs). The models of component are developed by using CATIA design part and finite element analysis is performed by using Analysis System (ANSYS). The force acting on the model is represented by ultrasonic transducer that is placed on top of microwave oven. Static structural analysis is used to show the equivalent stress and total deformation of the microwave oven structure. The results show bending effect on the microwave oven when the load is applied and require extra structural support.
Modelling and simulation of assembled components of an integrated diffusion method
By: A.N. Yusoff and M.A. Salim
Abstract:
This paper presents the modelling and simulation of modified microwave oven in order to improve the curing process of silver nanoparticles (AgNPs). The models of component are developed by using CATIA design part and finite element analysis is performed by using Analysis System (ANSYS). The force acting on the model is represented by ultrasonic transducer that is placed on top of microwave oven. Static structural analysis is used to show the equivalent stress and total deformation of the microwave oven structure. The results show bending effect on the microwave oven when the load is applied and require extra structural support.
paper_id_6.pdf | |
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Paper ID: 8
Investigation of silver nanoparticles ink resistivity on polyethylene terephthalate
By: N.A. Abd Rahim and M.A. Salim
Abstract:
The aim of this study is to identify the effects of resistivity for silver nanoparticles conductive ink. The research was conducted by following several processes such as formulation process, curing process, and testing process. In the testing process 4-point probe is used to study the resistivity effect on the silver nanoparticles ink using a polyethylene terephthalate. The electrical properties of silver nanoparticles conductive ink can be indicated in the result show on 4-point probe.
Investigation of silver nanoparticles ink resistivity on polyethylene terephthalate
By: N.A. Abd Rahim and M.A. Salim
Abstract:
The aim of this study is to identify the effects of resistivity for silver nanoparticles conductive ink. The research was conducted by following several processes such as formulation process, curing process, and testing process. In the testing process 4-point probe is used to study the resistivity effect on the silver nanoparticles ink using a polyethylene terephthalate. The electrical properties of silver nanoparticles conductive ink can be indicated in the result show on 4-point probe.
paper_id_8.pdf | |
File Size: | 409 kb |
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Paper ID: 9
Design of experiment on energy conservation using solar energy
By: Choong Chee Guan, Koh Foo Hin and Saw Chun Lin
Abstract:
Energy conservation is very important and efforts have been made to consume less energy, by increasing the efficiency of converted energy. In this paper, magnetic energy was used as power transmission method. A DC motor generator was used to test out the efficiency of this method. The recorded results were based on the output of DC motor generator. Different numbers of permanent magnets were used as the drive and driven disk (built to repulsive each other at 90 degrees). The results showed potential energy was needed to work the conversion continuously, thus solar energy was used as eco-energy starting potential.
Design of experiment on energy conservation using solar energy
By: Choong Chee Guan, Koh Foo Hin and Saw Chun Lin
Abstract:
Energy conservation is very important and efforts have been made to consume less energy, by increasing the efficiency of converted energy. In this paper, magnetic energy was used as power transmission method. A DC motor generator was used to test out the efficiency of this method. The recorded results were based on the output of DC motor generator. Different numbers of permanent magnets were used as the drive and driven disk (built to repulsive each other at 90 degrees). The results showed potential energy was needed to work the conversion continuously, thus solar energy was used as eco-energy starting potential.
paper_id_9.pdf | |
File Size: | 636 kb |
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Paper ID: 10
Product development of a fertilizer dispensing machine
By: Choong Chee Guan, Robert @ Kerk Swee Tian, Saw Chun Lin and Salvinder Singh Karam Singh
Abstract:
The concept of this machine design is based on the current phenomenal of fertilization methods used in today’s agricultural field. The amount of fertilizer required to fertilize the plants is the key element for the plant to grow healthy. Such equipment for the exact amount of fertilizer pallets to be dispensed is needed. The new machine dispenser design consists of a cup which can contain 20 grams of fertilizer pallets. The cup is attached to a mechanism below the storage tank, which a trigger is fabricated to perform the dispensing action of the fertilizer pallets. Hence, fertilizer pallets which had been dispensed travel through a flexible hose and into a metal pipe that is made to pierce the soil with ease so the fertilizer pallets can be dispensed easily into the soil. The end of the metal pipe consists of a cone like sharp pointy edge which helps agricultural workers to pierce the soil with ease. With the aid of this equipment, a single worker is able to fertilized 1 plot of pineapple plants within 8.3 hours only, hence minimizing the time required to perform fertilizing of the plants in the agricultural ecosystem and industry. Lightweight materials such as aluminum and plastic were used to construct the fertilizer storage compartment and the injector to minimize effort.
Product development of a fertilizer dispensing machine
By: Choong Chee Guan, Robert @ Kerk Swee Tian, Saw Chun Lin and Salvinder Singh Karam Singh
Abstract:
The concept of this machine design is based on the current phenomenal of fertilization methods used in today’s agricultural field. The amount of fertilizer required to fertilize the plants is the key element for the plant to grow healthy. Such equipment for the exact amount of fertilizer pallets to be dispensed is needed. The new machine dispenser design consists of a cup which can contain 20 grams of fertilizer pallets. The cup is attached to a mechanism below the storage tank, which a trigger is fabricated to perform the dispensing action of the fertilizer pallets. Hence, fertilizer pallets which had been dispensed travel through a flexible hose and into a metal pipe that is made to pierce the soil with ease so the fertilizer pallets can be dispensed easily into the soil. The end of the metal pipe consists of a cone like sharp pointy edge which helps agricultural workers to pierce the soil with ease. With the aid of this equipment, a single worker is able to fertilized 1 plot of pineapple plants within 8.3 hours only, hence minimizing the time required to perform fertilizing of the plants in the agricultural ecosystem and industry. Lightweight materials such as aluminum and plastic were used to construct the fertilizer storage compartment and the injector to minimize effort.
paper_id_10.pdf | |
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Paper ID: 11
Design of an eco-charger using wind turbine concept
By: C.C. Guan, R. Yusof and S.W. Lin
Abstract:
The increasing cost and deprivation of sources for fossil fuels sparks the needs for alternative source of energy. Thus, Eco-Charger is a type of charger that uses the concept of renewable energy, in the form of wind energy. Most of the current researches mainly focusing on large scale wind turbine. In this conceptual design, a small scale wind turbine is designed specifically to produce electrical power at low speeds. Kinetic energy obtained from a moving vehicle will generate electrical power and will be used to recharge portable device. Eco-Charger is designed by using the concept of wind turbine with specified blades. The shape of the blades is designed with three blades of horizontal axis wind turbine, so it can rotate continuously at any direction of the wind. This will ease the portable-device user to recharge their device when travelling as no electrical socket is needed to be plugged in. This renewable energy source charger can reduce problems regarding environmental pollution compare to the non-renewable energy. The designs review complete picture of wind turbine blades and shows the dominance wind turbine using horizontal axis rotors. The aerodynamic principles of the modern wind turbine blade design are detailed, including blade shape, quantity, aerofoil selection and optimal attack angles.
Design of an eco-charger using wind turbine concept
By: C.C. Guan, R. Yusof and S.W. Lin
Abstract:
The increasing cost and deprivation of sources for fossil fuels sparks the needs for alternative source of energy. Thus, Eco-Charger is a type of charger that uses the concept of renewable energy, in the form of wind energy. Most of the current researches mainly focusing on large scale wind turbine. In this conceptual design, a small scale wind turbine is designed specifically to produce electrical power at low speeds. Kinetic energy obtained from a moving vehicle will generate electrical power and will be used to recharge portable device. Eco-Charger is designed by using the concept of wind turbine with specified blades. The shape of the blades is designed with three blades of horizontal axis wind turbine, so it can rotate continuously at any direction of the wind. This will ease the portable-device user to recharge their device when travelling as no electrical socket is needed to be plugged in. This renewable energy source charger can reduce problems regarding environmental pollution compare to the non-renewable energy. The designs review complete picture of wind turbine blades and shows the dominance wind turbine using horizontal axis rotors. The aerodynamic principles of the modern wind turbine blade design are detailed, including blade shape, quantity, aerofoil selection and optimal attack angles.
paper_id_11.pdf | |
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Paper ID: 12
Data extraction from impulsive muscle under preplanned gesture
By: A.Y. Bani Hashim, Z. Fu, Z. Jamaludin and I.S. Mohamad
Abstract:
Electromyography signals are obtainable from the contraction of the human muscles, based on the human movements. The human forearm muscles consist of Brachioradialis muscle, Pronator Teres muscle, Flexor Carpi Radialis muscle, Palmaris Longus muscle, Flexor Carpi Ulnaris muscle and Extensor Carpi Ulnaris muscle. All those muscles are responsible for the movement of the human forearm. By performing specific hand gestures, the contraction of the muscles was captured through the raw electromyography signals. The study aimed to learn from the raw signals by looking at how each burst was unique from another about a muscle that was producing the signal. The Myonator—an in-house developed device that collects and reads the signals, was used to record the muscle contrac-tion from hand gestures of four subjects. The plots from the recorded data were obtained through LabVIEW. The results show that specific burst patterns distinctively identify specific muscles contraction. Therefore, mapping the burst patterns to some muscles is proven viable.
Data extraction from impulsive muscle under preplanned gesture
By: A.Y. Bani Hashim, Z. Fu, Z. Jamaludin and I.S. Mohamad
Abstract:
Electromyography signals are obtainable from the contraction of the human muscles, based on the human movements. The human forearm muscles consist of Brachioradialis muscle, Pronator Teres muscle, Flexor Carpi Radialis muscle, Palmaris Longus muscle, Flexor Carpi Ulnaris muscle and Extensor Carpi Ulnaris muscle. All those muscles are responsible for the movement of the human forearm. By performing specific hand gestures, the contraction of the muscles was captured through the raw electromyography signals. The study aimed to learn from the raw signals by looking at how each burst was unique from another about a muscle that was producing the signal. The Myonator—an in-house developed device that collects and reads the signals, was used to record the muscle contrac-tion from hand gestures of four subjects. The plots from the recorded data were obtained through LabVIEW. The results show that specific burst patterns distinctively identify specific muscles contraction. Therefore, mapping the burst patterns to some muscles is proven viable.
paper_id_12.pdf | |
File Size: | 503 kb |
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Paper ID: 13
Electrically tested nanofluids on printed mini channels
By: A.Y. Bani Hashim, I.S. Mohamad, Z.A. Syazwani, and A. Abdullah
Abstract:
The behavior of nanofluids bathed in constricted channels was observed by exciting these fluids with a low electrical potential. It was hypothesized that currents should flow through them because carbon is naturally a semiconductor. The results showed little currents were flowing in the circuit as the fluids recorded high resistances. However, the real nature of the fluids exposed to electrical potentials for a longer duration was still unknown.
Electrically tested nanofluids on printed mini channels
By: A.Y. Bani Hashim, I.S. Mohamad, Z.A. Syazwani, and A. Abdullah
Abstract:
The behavior of nanofluids bathed in constricted channels was observed by exciting these fluids with a low electrical potential. It was hypothesized that currents should flow through them because carbon is naturally a semiconductor. The results showed little currents were flowing in the circuit as the fluids recorded high resistances. However, the real nature of the fluids exposed to electrical potentials for a longer duration was still unknown.
paper_id_13.pdf | |
File Size: | 894 kb |
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Paper ID: 14
Conversion of plastic waste to fuel oil using pyrolysis process
By: S. Ahmad and M. Shafie
Abstract:
The development of this project is based on the purpose of converting plastic waste into fuel oil. The study is focusing on the design and fabrication of a plastic waste oil converter as an effort in finding environment-friendly means of waste recycling. It is an alternative solution to increasing problem of waste disposal by converting waste plastics into a resource. Pyrolysis process was the basis in the design and fabrication of the equipment. The conversions of Polypropylene (PP), Low Density Polyethylene (LDPE) and High Density Polyethylene (HDPE) into Plastic Waste Oil (PWO) are the key element of this design and development project. The converter consists of a filler tube, stove, working table, condensing rod, beaker, stop valve, condensing chamber, cooling outlet and intake. The filler tube attached to a mechanism of condensing unit, which collect the amount of PWO in a beaker. The stop valves functioned to allow the cooling medium entering the condensing system. Hence, plastic waste which evaporated travel through a condensing chamber, which made to turn the vapour into PWO. The filler tube is made of stainless steel with holding capacity of 500g/batch of plastic waste. The equipment tested for five trials using 500g of Polypropylene (PP), Low Density Polyethylene (LDPE) and High Density Polyethylene (HDPE) plastics per trial. With the aid of this equipment, it can optimize the amount of PWO produced due to its arrangement. Recommendations also discussed in order to increase the performance of plastic waste converter.
Conversion of plastic waste to fuel oil using pyrolysis process
By: S. Ahmad and M. Shafie
Abstract:
The development of this project is based on the purpose of converting plastic waste into fuel oil. The study is focusing on the design and fabrication of a plastic waste oil converter as an effort in finding environment-friendly means of waste recycling. It is an alternative solution to increasing problem of waste disposal by converting waste plastics into a resource. Pyrolysis process was the basis in the design and fabrication of the equipment. The conversions of Polypropylene (PP), Low Density Polyethylene (LDPE) and High Density Polyethylene (HDPE) into Plastic Waste Oil (PWO) are the key element of this design and development project. The converter consists of a filler tube, stove, working table, condensing rod, beaker, stop valve, condensing chamber, cooling outlet and intake. The filler tube attached to a mechanism of condensing unit, which collect the amount of PWO in a beaker. The stop valves functioned to allow the cooling medium entering the condensing system. Hence, plastic waste which evaporated travel through a condensing chamber, which made to turn the vapour into PWO. The filler tube is made of stainless steel with holding capacity of 500g/batch of plastic waste. The equipment tested for five trials using 500g of Polypropylene (PP), Low Density Polyethylene (LDPE) and High Density Polyethylene (HDPE) plastics per trial. With the aid of this equipment, it can optimize the amount of PWO produced due to its arrangement. Recommendations also discussed in order to increase the performance of plastic waste converter.
paper_id_14.pdf | |
File Size: | 556 kb |
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Paper ID: 15
Effective maintenance engineering and management in welding industry
By: C.G. Choong and L.F. Zakaria
Abstract:
The purpose of this paper is to investigate the maintenance needed for machine in welding industry and giving suggestion to overcome the breakdown time and prevent for any major losses. Therefore, the paper contains maintenance organization, strategy, system approach, planning, scheduling and the computerized maintenance management system suitable for welding industry. Basically, the first thing need to be consider is the organization to simulate the company and organize the maintenance well. Then, task is brought to next step which is choosing the right strategy to implement into the company and with the strategy, comes the system approach to maintenance which will be needed the organize/secure planning and scheduling. Computer system is when everything kept in place and secure and in that particular application one’s company can be more organized toward a better maintenance.
Effective maintenance engineering and management in welding industry
By: C.G. Choong and L.F. Zakaria
Abstract:
The purpose of this paper is to investigate the maintenance needed for machine in welding industry and giving suggestion to overcome the breakdown time and prevent for any major losses. Therefore, the paper contains maintenance organization, strategy, system approach, planning, scheduling and the computerized maintenance management system suitable for welding industry. Basically, the first thing need to be consider is the organization to simulate the company and organize the maintenance well. Then, task is brought to next step which is choosing the right strategy to implement into the company and with the strategy, comes the system approach to maintenance which will be needed the organize/secure planning and scheduling. Computer system is when everything kept in place and secure and in that particular application one’s company can be more organized toward a better maintenance.
paper_id_15.pdf | |
File Size: | 432 kb |
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Paper ID: 16
Development of an oil trap system for wastewater handling
By: Zulkifli Sulaiman, Sahrijan Ahmad and Mohd Fadhli Ahmad
Abstract:
Removal of oil and fat waste into the sewerage system at the cafeteria of Politeknik Tuanku Syed Sirajuddin (PTSS) has been a major cause of water pollution to the environment. Among the identified sources were the released of solid food waste, oil, and grease from the food premises into the drainage systems. To address the problem of water pollution, a new modified oil trap system was developed and installed at the cafeteria sewage system. By installing the oil trap system, results obtained showed that wastewater quality was improved while the solid waste and oil residuals were filtered into a dedicated storage compartment and prevented from entering the sewerage system.
Development of an oil trap system for wastewater handling
By: Zulkifli Sulaiman, Sahrijan Ahmad and Mohd Fadhli Ahmad
Abstract:
Removal of oil and fat waste into the sewerage system at the cafeteria of Politeknik Tuanku Syed Sirajuddin (PTSS) has been a major cause of water pollution to the environment. Among the identified sources were the released of solid food waste, oil, and grease from the food premises into the drainage systems. To address the problem of water pollution, a new modified oil trap system was developed and installed at the cafeteria sewage system. By installing the oil trap system, results obtained showed that wastewater quality was improved while the solid waste and oil residuals were filtered into a dedicated storage compartment and prevented from entering the sewerage system.
paper_id_16.pdf | |
File Size: | 374 kb |
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Paper ID: 17
Enriched laboratory experiments with interactive simulation
By: N. I. Haris and A. Talip
Abstract:
Mechanical engineering syllabus contain compulsory laboratory experiments because the development and application of theories used to rest only on real experiments. The three pillars of science maps state that students need to validate the theory through real experiments and then do the verification by using computational experiments. In this paper, PhET interactive simulation was used to help students to verify the lab experiment. The simulation can be used as post practical to enhance student understanding after real experiment.
Enriched laboratory experiments with interactive simulation
By: N. I. Haris and A. Talip
Abstract:
Mechanical engineering syllabus contain compulsory laboratory experiments because the development and application of theories used to rest only on real experiments. The three pillars of science maps state that students need to validate the theory through real experiments and then do the verification by using computational experiments. In this paper, PhET interactive simulation was used to help students to verify the lab experiment. The simulation can be used as post practical to enhance student understanding after real experiment.
paper_id_17.pdf | |
File Size: | 583 kb |
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Paper ID: 18
Effects of engine sizing on battery state-of-charge for hybrid electric vehicle
By: A. Md Saad, M.A. Salim, M.R. Mansor and M.Z. Akop
Abstract:
The purpose of this study is to investigate the effects of engine sizing on battery state of charge (SOC) for hybrid electric vehicle (HEV). It is carried out by using ADVISOR software, in which the vehicle system is simulated based on US06 driving cycle to represent both highway and city driving. The battery parameters are kept constant and 3 different sizes of engine are used. The optimum engine size obtained from the simulation is 36kW. The engine manages to charge the battery at considerable rate and the battery SOC is 0.46 at the end of the simulation. All the engine sizes manage to propel the vehicle following the US06 driving cycle. But, smaller engine size causes the battery to deplete excessively below 15% of SOC and larger engine size causes the battery to overcharge.
Effects of engine sizing on battery state-of-charge for hybrid electric vehicle
By: A. Md Saad, M.A. Salim, M.R. Mansor and M.Z. Akop
Abstract:
The purpose of this study is to investigate the effects of engine sizing on battery state of charge (SOC) for hybrid electric vehicle (HEV). It is carried out by using ADVISOR software, in which the vehicle system is simulated based on US06 driving cycle to represent both highway and city driving. The battery parameters are kept constant and 3 different sizes of engine are used. The optimum engine size obtained from the simulation is 36kW. The engine manages to charge the battery at considerable rate and the battery SOC is 0.46 at the end of the simulation. All the engine sizes manage to propel the vehicle following the US06 driving cycle. But, smaller engine size causes the battery to deplete excessively below 15% of SOC and larger engine size causes the battery to overcharge.
paper_id_18.pdf | |
File Size: | 497 kb |
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Paper ID: 19
Effect of coconut shell powder in brake friction materials
By: M.A.M. Daud, N. F. Bayanuddin, M. Z. Selamat and D.M. Sivakumar
Abstract:
The purpose of this study is to investigate the effects of coconut shell powder in brake friction materials. The specimens are made from four different compositions of aluminum oxide, maleic anhydride, epoxy resin and coconut shell powder. The shore hardness is measured using ASTM D 2240. The density and porosity of a specimen with 25 mm diameter by 14 mm high is estimated using ASTM C 380-79. The applied pressure is 100 kN/cm2 for 5 minutes at temperature of 80 oC and cooling time of 15 minutes. Five different sets of specimen are produced with different composition of ingredients. The best result is for specimen C with the Shore hardness, 69.7, porosity of 0.27 % and density of 1.858 g/cm3.
Effect of coconut shell powder in brake friction materials
By: M.A.M. Daud, N. F. Bayanuddin, M. Z. Selamat and D.M. Sivakumar
Abstract:
The purpose of this study is to investigate the effects of coconut shell powder in brake friction materials. The specimens are made from four different compositions of aluminum oxide, maleic anhydride, epoxy resin and coconut shell powder. The shore hardness is measured using ASTM D 2240. The density and porosity of a specimen with 25 mm diameter by 14 mm high is estimated using ASTM C 380-79. The applied pressure is 100 kN/cm2 for 5 minutes at temperature of 80 oC and cooling time of 15 minutes. Five different sets of specimen are produced with different composition of ingredients. The best result is for specimen C with the Shore hardness, 69.7, porosity of 0.27 % and density of 1.858 g/cm3.
paper_id_19.pdf | |
File Size: | 419 kb |
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Paper ID: 20
Effect of temperature on reliability performance of electrically conductive nano – composites
By: M.A. Othman and S.H. Fadzullah
Abstract:
This research investigates the effect of temperature and humidity on the reliability performance of electrically conductive nanocomposites made from solution mixing process using epoxy matrix and MWCNT. The test specimens were subjected to 168 hours of thermal aging and specified test specimens were characterized at normal condition as controlled specimens. The reliability performance were tested in terms of its electrical conductivity and lap shear strength using the 4 point probe and universal testing machine respectively. With the presence of moisture attack, the electrical conductivity of the ECA increase with thermal aging period while the shear strength revealed contradicting trend which results in a decrease in the shear strength of the ECA.
Effect of temperature on reliability performance of electrically conductive nano – composites
By: M.A. Othman and S.H. Fadzullah
Abstract:
This research investigates the effect of temperature and humidity on the reliability performance of electrically conductive nanocomposites made from solution mixing process using epoxy matrix and MWCNT. The test specimens were subjected to 168 hours of thermal aging and specified test specimens were characterized at normal condition as controlled specimens. The reliability performance were tested in terms of its electrical conductivity and lap shear strength using the 4 point probe and universal testing machine respectively. With the presence of moisture attack, the electrical conductivity of the ECA increase with thermal aging period while the shear strength revealed contradicting trend which results in a decrease in the shear strength of the ECA.
paper_id_20.pdf | |
File Size: | 511 kb |
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Paper ID: 22
Effects of carbon nanotube aspect ratio on the functional properties of electrically conductive adhesive
By: A.M.A Raheem and S.H.S.M. Fadzullah
Abstract:
This project investigates the effect of carbon nanotubes aspect ratio on the functional properties of electrically conductive adhesive (ECA). Two types of multi walled carbon nanotubes (MWCNT) conductive filler are considered, with the same outer diameter but different length which have aspect ratios of 1750, termed high aspect ratio and 112.5, termed low aspect ratio and manually mixed with epoxy to produce the ECA. Results on the ECA using MWCNT of low aspect ratio on the electrical conductivity suggest that percolation threshold is reached at relatively high filler loading while the percolation threshold for high aspect ratio MWCNT is reached at lower filler loading. The results suggest that higher aspect ratio MWCNT has better conductivity as compared to low aspect ratio MWCNT.
Effects of carbon nanotube aspect ratio on the functional properties of electrically conductive adhesive
By: A.M.A Raheem and S.H.S.M. Fadzullah
Abstract:
This project investigates the effect of carbon nanotubes aspect ratio on the functional properties of electrically conductive adhesive (ECA). Two types of multi walled carbon nanotubes (MWCNT) conductive filler are considered, with the same outer diameter but different length which have aspect ratios of 1750, termed high aspect ratio and 112.5, termed low aspect ratio and manually mixed with epoxy to produce the ECA. Results on the ECA using MWCNT of low aspect ratio on the electrical conductivity suggest that percolation threshold is reached at relatively high filler loading while the percolation threshold for high aspect ratio MWCNT is reached at lower filler loading. The results suggest that higher aspect ratio MWCNT has better conductivity as compared to low aspect ratio MWCNT.
paper_id_22.pdf | |
File Size: | 384 kb |
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Paper ID: 23
Fabrication of hybrid oil palm empty fruit bunch and kenaf reinforced epoxy composite panels at varying fiber layering sequence
By: M.R. Mansor, M.A.A. Hadi, M.J. Taufiq, M.A. Salim and A. Md. Saad
Abstract:
Hybrid natural fiber composites offer many advantages especially in achieving balance between mechanical performance and cost as compared to single natural fiber-matrix composites. In this paper, the fabrication process of preparing novel hybrid oil palm empty fruit bunch (OPEFB) and kenaf fibers reinforced epoxy composite panels is explained. Four varying fiber stacking sequences were applied to prepare the hybrid composites panels, at thermoset epoxy matrix between 58.1 wt.% and 68.6 wt.%. Three types of fibers were used in the composites fabrication, which are short fiber (sf) OPEFB, short fiber (sf) kenaf and woven kenaf mat. The hybrid composites fabrication involved fiber crushing (to form short fibers at fiber length between 1 mm to 3 mm), and compression molding (at 25 psi and room temperature). All panels were fabrication using a steel mold with dimensions of 200 mm (length) x 200 mm (width) x 3 mm (thickness). End of fabrication process showed that high quality compressed hybrid composites panels with very low porosity were successfully obtained for fiber lay-up sequence of kenaf_sf/OPEFB_sf/kenaf_sf and kenaf_mat/OPEFB_sf/kenaf_mat. On the other hand, the final hybrid composite panels which consist of fiber lay-up sequence of OPEFB_sf/Kenaf_sf/OPEFB_sf and OPEFB_sf/Kenaf_mat/OPEFB_sf yielded in high porosity at the end of the fabrication process. The results obtained showed that hybrid composite panels which are fabricated using higher kenaf fiber loading were able to yield good quality panels with very low porosity compared to panels fabricated using higher OPEFB fiber loading, an indication that good wetting is achieved between the epoxy matrix and the kenaf fibers.
Fabrication of hybrid oil palm empty fruit bunch and kenaf reinforced epoxy composite panels at varying fiber layering sequence
By: M.R. Mansor, M.A.A. Hadi, M.J. Taufiq, M.A. Salim and A. Md. Saad
Abstract:
Hybrid natural fiber composites offer many advantages especially in achieving balance between mechanical performance and cost as compared to single natural fiber-matrix composites. In this paper, the fabrication process of preparing novel hybrid oil palm empty fruit bunch (OPEFB) and kenaf fibers reinforced epoxy composite panels is explained. Four varying fiber stacking sequences were applied to prepare the hybrid composites panels, at thermoset epoxy matrix between 58.1 wt.% and 68.6 wt.%. Three types of fibers were used in the composites fabrication, which are short fiber (sf) OPEFB, short fiber (sf) kenaf and woven kenaf mat. The hybrid composites fabrication involved fiber crushing (to form short fibers at fiber length between 1 mm to 3 mm), and compression molding (at 25 psi and room temperature). All panels were fabrication using a steel mold with dimensions of 200 mm (length) x 200 mm (width) x 3 mm (thickness). End of fabrication process showed that high quality compressed hybrid composites panels with very low porosity were successfully obtained for fiber lay-up sequence of kenaf_sf/OPEFB_sf/kenaf_sf and kenaf_mat/OPEFB_sf/kenaf_mat. On the other hand, the final hybrid composite panels which consist of fiber lay-up sequence of OPEFB_sf/Kenaf_sf/OPEFB_sf and OPEFB_sf/Kenaf_mat/OPEFB_sf yielded in high porosity at the end of the fabrication process. The results obtained showed that hybrid composite panels which are fabricated using higher kenaf fiber loading were able to yield good quality panels with very low porosity compared to panels fabricated using higher OPEFB fiber loading, an indication that good wetting is achieved between the epoxy matrix and the kenaf fibers.
paper_id_23.pdf | |
File Size: | 456 kb |
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Paper ID: 24
Effect of Line Thickness Cross-Sectional Geometry to Stretchable Printed Circuit
By: M.A. Suhaimi, M.Z. Azmi, N.S. Rozali, N.H. Sobri and M.Z. Akop
Abstract:
The effect of thickness of the ink on the resistivity. There are five samples with different thicknesses (2, 4, 6, 8 and 10 layers). The layers was made using cellophane tape and each layer represent 0.04 mm. The printing method used was screen printing method and the samples was measured using four point probe in the unit of Ω/sq. In this paper the conductive ink used is carbon black and the substrate used are glass and thermoplastic-polyurethane (TPU). The result of the study shows that when the thickness of the ink increase, the resistivity will decreased.
Effect of Line Thickness Cross-Sectional Geometry to Stretchable Printed Circuit
By: M.A. Suhaimi, M.Z. Azmi, N.S. Rozali, N.H. Sobri and M.Z. Akop
Abstract:
The effect of thickness of the ink on the resistivity. There are five samples with different thicknesses (2, 4, 6, 8 and 10 layers). The layers was made using cellophane tape and each layer represent 0.04 mm. The printing method used was screen printing method and the samples was measured using four point probe in the unit of Ω/sq. In this paper the conductive ink used is carbon black and the substrate used are glass and thermoplastic-polyurethane (TPU). The result of the study shows that when the thickness of the ink increase, the resistivity will decreased.
paper_id_24.pdf | |
File Size: | 317 kb |
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Paper ID: 25
The effect of substrate surface conditions on mechanical performance of electrically conductive adhesive
By: W.A.W.A. Rahman, S.H.S.M. Fadzullah and M.M. Nasaruddin
Abstract:
This project investigates the effect of surface treatment towards the surface roughness and surface wettability which contributed to the lap shear strength of electrically conductive adhesive (ECA) bonded to aluminum-aluminum substrate. Several surface treatment methods were applied on the aluminum substrate which involved chemical etching process with the utilization of NaOH solution and HCl solution, and mechanical abrasion process by SiC abrasive paper G180 and G1200. Four-point probe test on ECA sheet resistance shows that the increase of multi-walled carbon nanotube (MWCNT) filler loading decreased the ECA electrical resistivity. As chemically etched substrate provides highest surface roughness and the lowest contact angle, the ECA bonded to the substrate exhibit the highest shear strength when subjected to lap shear test.
The effect of substrate surface conditions on mechanical performance of electrically conductive adhesive
By: W.A.W.A. Rahman, S.H.S.M. Fadzullah and M.M. Nasaruddin
Abstract:
This project investigates the effect of surface treatment towards the surface roughness and surface wettability which contributed to the lap shear strength of electrically conductive adhesive (ECA) bonded to aluminum-aluminum substrate. Several surface treatment methods were applied on the aluminum substrate which involved chemical etching process with the utilization of NaOH solution and HCl solution, and mechanical abrasion process by SiC abrasive paper G180 and G1200. Four-point probe test on ECA sheet resistance shows that the increase of multi-walled carbon nanotube (MWCNT) filler loading decreased the ECA electrical resistivity. As chemically etched substrate provides highest surface roughness and the lowest contact angle, the ECA bonded to the substrate exhibit the highest shear strength when subjected to lap shear test.
paper_id_25.pdf | |
File Size: | 441 kb |
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Paper ID: 26
Thermal conductivity and heat transfer of MWCNT-OH ethylene glycol based nanofluids
By: A. Abdullah, I.S. Mohamad, A.Y. Bani Hashim, M.H. Mohd Husin and S. Zainal Abidin
Abstract:
The purpose of this study to investigate the thermal conductivity and heat transfer coefficient of MWCNT-OH ethylene glycol based nanofluids at 6 Celcius, 25 Celcius and 40 Celcius. This research used two-step method in preparing the nanofluids. The results following the thermal performance test reveals that these nanofluids gained thermal conductivity enhancement by 2.232% to 20.10%. Meanwhile, the heat transfer coefficient shows an enhancement with the increase in weight loading and temperature. Factors that affects these results are surfactant, stability, dispersion process, nanoparticle size and surface area of MWCNT-OH nanoparticles. These results proved that the seeding of MWCNT-OH nanoparticles have enhanced the thermal performances of the nanofluids.
Thermal conductivity and heat transfer of MWCNT-OH ethylene glycol based nanofluids
By: A. Abdullah, I.S. Mohamad, A.Y. Bani Hashim, M.H. Mohd Husin and S. Zainal Abidin
Abstract:
The purpose of this study to investigate the thermal conductivity and heat transfer coefficient of MWCNT-OH ethylene glycol based nanofluids at 6 Celcius, 25 Celcius and 40 Celcius. This research used two-step method in preparing the nanofluids. The results following the thermal performance test reveals that these nanofluids gained thermal conductivity enhancement by 2.232% to 20.10%. Meanwhile, the heat transfer coefficient shows an enhancement with the increase in weight loading and temperature. Factors that affects these results are surfactant, stability, dispersion process, nanoparticle size and surface area of MWCNT-OH nanoparticles. These results proved that the seeding of MWCNT-OH nanoparticles have enhanced the thermal performances of the nanofluids.
paper_id_26.pdf | |
File Size: | 447 kb |
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Paper ID: 27
A study of ultimate load of a beam under bending
By: Masniza Yusof
Abstract:
Bending of beams is a frequently encountered loading situation in practice. A slender member subject to traverse loads is termed as a beam under bending. At any cross-section, the traverse loads generate shear and bending moment to maintain equilibrium. One of the common principles used to determine the loading capacity of a structure is the first yield criterion which assumes that the maximum load is reached when the stress in the extreme fabric reaches yield stress. However, the design based on this rule is not economical for a beam carrying static load, and a substantial reserve of the strength is disregarded. In order to make use of the material strength fully, the possibilities of loading the beam into the plastic region can be explored. Then, the experiment is carried out to study the ultimate load of a beam under bending. Thus, we can conclude that the solid cross section beam was the strongest and the hollow cross section beam was the weakest.
A study of ultimate load of a beam under bending
By: Masniza Yusof
Abstract:
Bending of beams is a frequently encountered loading situation in practice. A slender member subject to traverse loads is termed as a beam under bending. At any cross-section, the traverse loads generate shear and bending moment to maintain equilibrium. One of the common principles used to determine the loading capacity of a structure is the first yield criterion which assumes that the maximum load is reached when the stress in the extreme fabric reaches yield stress. However, the design based on this rule is not economical for a beam carrying static load, and a substantial reserve of the strength is disregarded. In order to make use of the material strength fully, the possibilities of loading the beam into the plastic region can be explored. Then, the experiment is carried out to study the ultimate load of a beam under bending. Thus, we can conclude that the solid cross section beam was the strongest and the hollow cross section beam was the weakest.
paper_id_27.pdf | |
File Size: | 317 kb |
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Paper ID: 28
Specific heat capacity of carbon nanofiber nanocoolant
By: S. Zainal Abidin, I.S. Mohamad, A.Y. Bani Hashim, N. A. B. Masripan and A. Abdullah
Abstract:
With the rising demand for modern technology for process intensification and device miniaturization, there was a need to develop new types of fluids that are more effective in terms of thermophysical performance. To achieve this, a new generation coolant has been proposed recently, which known as nanocoolant. However, it is evident from literature that less attention has been given to the heat capacity studies for these fluids. In this research, we have presented an experimental investigation of the specific heat (Cp) of carbon nanofiber based nanocoolant in deionized water and ethylene glycol with a calorimeter bomb. The result indicates that the specific heat of nanocoolant decreases gradually as the nanoparticle volume fraction increases from 0.8wt% to 1.0wt%.
Specific heat capacity of carbon nanofiber nanocoolant
By: S. Zainal Abidin, I.S. Mohamad, A.Y. Bani Hashim, N. A. B. Masripan and A. Abdullah
Abstract:
With the rising demand for modern technology for process intensification and device miniaturization, there was a need to develop new types of fluids that are more effective in terms of thermophysical performance. To achieve this, a new generation coolant has been proposed recently, which known as nanocoolant. However, it is evident from literature that less attention has been given to the heat capacity studies for these fluids. In this research, we have presented an experimental investigation of the specific heat (Cp) of carbon nanofiber based nanocoolant in deionized water and ethylene glycol with a calorimeter bomb. The result indicates that the specific heat of nanocoolant decreases gradually as the nanoparticle volume fraction increases from 0.8wt% to 1.0wt%.
paper_id_28.pdf | |
File Size: | 460 kb |
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Paper ID: 29
Electrical performances of graphene with different filler loading as conductive ink
By: M. Mokhlis, M.A. Salim and N.A. Masripan
Abstract:
Recent years have witnessed many breakthroughs in research on graphene for conductive ink application. This study focusing on the electrical performances of graphene as conductive ink at 10wt. %, 20wt. %, 30wt. % and 40wt. % of filler loading using a four-point probe. From the result obtained, low percentage of filler loading has no presence of conductivity while for a higher percentage of filler loading has lower resistivity and presence of conductivity. The outcome from this work would provide a convenient way to fabricate conductive ink for various printed electronics fields.
Electrical performances of graphene with different filler loading as conductive ink
By: M. Mokhlis, M.A. Salim and N.A. Masripan
Abstract:
Recent years have witnessed many breakthroughs in research on graphene for conductive ink application. This study focusing on the electrical performances of graphene as conductive ink at 10wt. %, 20wt. %, 30wt. % and 40wt. % of filler loading using a four-point probe. From the result obtained, low percentage of filler loading has no presence of conductivity while for a higher percentage of filler loading has lower resistivity and presence of conductivity. The outcome from this work would provide a convenient way to fabricate conductive ink for various printed electronics fields.
paper_id_29.pdf | |
File Size: | 589 kb |
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Paper ID: 31
Fabrication of uniaxially aligned electrospun nanofibre using a rotating collector
By: M. N. A. Hamzah and A. H. Nurfaizey
Abstract:
This paper is about the fabrication of aligned electrospun nanofiber based Polyvinyl Alcohol (PVA) by using electrospinning technique with rotating collector. PVA solution was prepared by dissolved PVA powder into distilled water. This experiment was conducted at various speeds of rotating collector. PVA based nanofiber have been fabricated and characterized. The morphology of the fibres was analysed by using a Scanning Electron Microscope (SEM) and ImageJ software. Form the results, 900 RPM achieved the most aligned electrospun nanofiber.
Fabrication of uniaxially aligned electrospun nanofibre using a rotating collector
By: M. N. A. Hamzah and A. H. Nurfaizey
Abstract:
This paper is about the fabrication of aligned electrospun nanofiber based Polyvinyl Alcohol (PVA) by using electrospinning technique with rotating collector. PVA solution was prepared by dissolved PVA powder into distilled water. This experiment was conducted at various speeds of rotating collector. PVA based nanofiber have been fabricated and characterized. The morphology of the fibres was analysed by using a Scanning Electron Microscope (SEM) and ImageJ software. Form the results, 900 RPM achieved the most aligned electrospun nanofiber.
paper_id_31.pdf | |
File Size: | 758 kb |
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Paper ID: 32
Effects of carbon black to electrical properties on stretchable printed circuit
By: N.S. Rozali, N.H. Sobri, M.A. Suhaimi, M.Z. Azmi and M.Z. Akop
Abstract:
This paper seeks to analyze the effect of type of conductive ink to stretchable printed circuit. For this study, carbon black or also can be known as CB is used as the conductive ink. This study is focus on the measurement of sheet resistance. Four-point probing system is used to measure the sheet resistance, Rs of the conductive ink. The sheet of the carbon black is measured under room temperature without any external heat or load applied. A proper printing technique must be considered to get the consistent and accurate data. The surface roughness of the different sample is determined by using 3D non-contact profilometer measuring instrument. Results shows that higher value of the surface roughness will improve the conductivity of the carbon black ink.
Effects of carbon black to electrical properties on stretchable printed circuit
By: N.S. Rozali, N.H. Sobri, M.A. Suhaimi, M.Z. Azmi and M.Z. Akop
Abstract:
This paper seeks to analyze the effect of type of conductive ink to stretchable printed circuit. For this study, carbon black or also can be known as CB is used as the conductive ink. This study is focus on the measurement of sheet resistance. Four-point probing system is used to measure the sheet resistance, Rs of the conductive ink. The sheet of the carbon black is measured under room temperature without any external heat or load applied. A proper printing technique must be considered to get the consistent and accurate data. The surface roughness of the different sample is determined by using 3D non-contact profilometer measuring instrument. Results shows that higher value of the surface roughness will improve the conductivity of the carbon black ink.
paper_id_32.pdf | |
File Size: | 575 kb |
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Paper ID: 33
Conceptual design of stretching test rig for stretchable conductive ink
By: M.Z. Azmi, N.H. Sobri, M.A. Suhaimi, N.S. Rozali and M.Z. Akop
Abstract:
With the growth of the usage of flexible and stretchable printed circuit using conductive ink in the industry, it is important to assess the reliability, performance and functionality of the flexible and stretchable printed circuit. Therefore, a stretchability test rig must be developed in order to test the stretchability of the stretchable printed circuit as well used in check the conductivity of the conductive ink when the stretchable printed circuit stretched. The stretchability test rig consist of three parts which is the main body, the secondary body and the holder. Attached to the main body is a handle which is connected with gear. The gear act as pinion for the rack which can adjust the length of the main body and the secondary body. Two holders will be used to clamp both end of the sample conductive printed circuit which then one holder will be attach to main body and another attached to secondary body.
Conceptual design of stretching test rig for stretchable conductive ink
By: M.Z. Azmi, N.H. Sobri, M.A. Suhaimi, N.S. Rozali and M.Z. Akop
Abstract:
With the growth of the usage of flexible and stretchable printed circuit using conductive ink in the industry, it is important to assess the reliability, performance and functionality of the flexible and stretchable printed circuit. Therefore, a stretchability test rig must be developed in order to test the stretchability of the stretchable printed circuit as well used in check the conductivity of the conductive ink when the stretchable printed circuit stretched. The stretchability test rig consist of three parts which is the main body, the secondary body and the holder. Attached to the main body is a handle which is connected with gear. The gear act as pinion for the rack which can adjust the length of the main body and the secondary body. Two holders will be used to clamp both end of the sample conductive printed circuit which then one holder will be attach to main body and another attached to secondary body.
paper_id_33.pdf | |
File Size: | 418 kb |
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Paper ID: 34
Electrothermal performance of Ag-filled stretchable conductive ink
By: A.A. Ashikin, G. Omar, N. Tamaldin, M.A. Nordin, M. Z. Akop, S.H.S.M Fadzullah, F. Che Ani Fadzullah and S. Jasmee
Abstract:
The purpose of this investigation is to explore the relationship between thermal effect and sheet resistance of conductive ink. Scanning Electron Microscopy (SEM) is used to study the microstructure when the ink was exposed to heat. The SCI specimen was exposed to high temperature has low resistance compared to the specimen at room temperature (RT). Morphology SCI will be observed using Scanning Electron Microscopy (SEM) to investigate the thermal effect on microstructure.
Electrothermal performance of Ag-filled stretchable conductive ink
By: A.A. Ashikin, G. Omar, N. Tamaldin, M.A. Nordin, M. Z. Akop, S.H.S.M Fadzullah, F. Che Ani Fadzullah and S. Jasmee
Abstract:
The purpose of this investigation is to explore the relationship between thermal effect and sheet resistance of conductive ink. Scanning Electron Microscopy (SEM) is used to study the microstructure when the ink was exposed to heat. The SCI specimen was exposed to high temperature has low resistance compared to the specimen at room temperature (RT). Morphology SCI will be observed using Scanning Electron Microscopy (SEM) to investigate the thermal effect on microstructure.
paper_id_34.pdf | |
File Size: | 520 kb |
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Paper ID: 35
Hydrophobicity performance of thermoplastic polyurethane coated with TiO2 under thermal aging effect
By: S. Jasmee, G. Omar, M.N.A. Nordin, N.A.B. Masripan and A. A. Kamarolzaman
Abstract:
Water repellent characteristics using ceramic-based coating may protect the surface from degradation, moisture absorption and corrosion due to the hydrophobicity behavior of the surface after coating. This paper seeks to provide insight into characterization and understanding on the effect of thermal aging on the hydrophobic performance of polymer substrate (TPU) with and without coated of Titanium Dioxide (TiO2). The results reveal that hydrophobicity of TPU increases on coated and thermally aged. Although the contact angle does not differ much after coated with TiO2, the substrate still behaves as hydrophobic. Surface roughness was found to be one of the factors affecting the hydrophobicity of the surface.
Hydrophobicity performance of thermoplastic polyurethane coated with TiO2 under thermal aging effect
By: S. Jasmee, G. Omar, M.N.A. Nordin, N.A.B. Masripan and A. A. Kamarolzaman
Abstract:
Water repellent characteristics using ceramic-based coating may protect the surface from degradation, moisture absorption and corrosion due to the hydrophobicity behavior of the surface after coating. This paper seeks to provide insight into characterization and understanding on the effect of thermal aging on the hydrophobic performance of polymer substrate (TPU) with and without coated of Titanium Dioxide (TiO2). The results reveal that hydrophobicity of TPU increases on coated and thermally aged. Although the contact angle does not differ much after coated with TiO2, the substrate still behaves as hydrophobic. Surface roughness was found to be one of the factors affecting the hydrophobicity of the surface.
paper_id_35.pdf | |
File Size: | 348 kb |
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Paper ID: 37
The effects of line width cross-sectional geometry to stretchable printed circuit
By: N.H. Sobri, N.S. Rozali, M.A. Suhaimi, M.Z. Azmi and M.Z. Akop
Abstract:
The purpose of this study is to investigate the effects of line width cross-sectional geometry to stretchable printed. Four point probes are used to measure resistivity of the conductive ink. Different width of ink were used. As a result, the higher width conductive ink content gave lower resistance than using lower width conductive ink content.
The effects of line width cross-sectional geometry to stretchable printed circuit
By: N.H. Sobri, N.S. Rozali, M.A. Suhaimi, M.Z. Azmi and M.Z. Akop
Abstract:
The purpose of this study is to investigate the effects of line width cross-sectional geometry to stretchable printed. Four point probes are used to measure resistivity of the conductive ink. Different width of ink were used. As a result, the higher width conductive ink content gave lower resistance than using lower width conductive ink content.
paper_id_37.pdf | |
File Size: | 511 kb |
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Paper ID: 38
The preparation and morphological investigation of polyacrylonitrile electrospun nanofibre with different loading of carbon nanotube
By: N.A. Munajat, A.H. Nurfaizey and S.H.S.M. Fadzullah
Abstract:
Polyacrylonitrile (PAN) electrospun nanofibres with different loading of multi-walled carbon nanotube (MWCNT) were successfully prepared using electrospinning method. PAN powder was dissolved in dimethylformamide and the solution was electrospun under constant electrospinning parameters. The morphological structure and average fibre diameter of the nanofibres were examined using electron scanning microscopy. It was found that the solution with a higher content of MWCNT produced fibres with thicker fibre diameter. It was also observed that the surfaces of the fibres were rougher compared to control fibres. The results suggest that the inclusion of MWCNT reduced the electrospinnability of the PAN polymer solution.
The preparation and morphological investigation of polyacrylonitrile electrospun nanofibre with different loading of carbon nanotube
By: N.A. Munajat, A.H. Nurfaizey and S.H.S.M. Fadzullah
Abstract:
Polyacrylonitrile (PAN) electrospun nanofibres with different loading of multi-walled carbon nanotube (MWCNT) were successfully prepared using electrospinning method. PAN powder was dissolved in dimethylformamide and the solution was electrospun under constant electrospinning parameters. The morphological structure and average fibre diameter of the nanofibres were examined using electron scanning microscopy. It was found that the solution with a higher content of MWCNT produced fibres with thicker fibre diameter. It was also observed that the surfaces of the fibres were rougher compared to control fibres. The results suggest that the inclusion of MWCNT reduced the electrospinnability of the PAN polymer solution.
paper_id_38.pdf | |
File Size: | 526 kb |
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Paper ID: 39
Effect of the contact angle between mass and finite rod in transverse vibration using laminated rubber-metal spring model for automotive absorber
By: S.R. Ruslan and M.A. Salim
Abstract:
This paper presents the effect of the contact angle between mass and finite rod in transverse vibration using LR-MS model for automotive absorber. The mathematical model for transmissibility are developed by using two different approaches. The first approach using assumption of massless suspension absorber where the system are modelled by using spring and damper. The second approach employs the impedance technique that derived from wave propagation method. The contact angle will effect to the transmissibility graph either offset to upper or lower side. Furthermore, the parametric study also been discussed in this paper in order to get the transmissibility correlation.
Effect of the contact angle between mass and finite rod in transverse vibration using laminated rubber-metal spring model for automotive absorber
By: S.R. Ruslan and M.A. Salim
Abstract:
This paper presents the effect of the contact angle between mass and finite rod in transverse vibration using LR-MS model for automotive absorber. The mathematical model for transmissibility are developed by using two different approaches. The first approach using assumption of massless suspension absorber where the system are modelled by using spring and damper. The second approach employs the impedance technique that derived from wave propagation method. The contact angle will effect to the transmissibility graph either offset to upper or lower side. Furthermore, the parametric study also been discussed in this paper in order to get the transmissibility correlation.
paper_id_39.pdf | |
File Size: | 535 kb |
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