Feasibility study on producing functional parts using molding technology
The mechanical and electrical conductivity of a system based on ABS (acrylonitrile butadiene styrene) filled with metal powder have been studied. Copper powder having different percentage was used as fillers. Polymer composite investigated to produce high electrical conductivity from a low-cos...
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| Format: | Thesis |
| Language: | English English English |
| Published: |
2014
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/1426/1/24p%20ADEL%20MUHSIN%20ELEWE.pdf http://eprints.uthm.edu.my/1426/2/ADEL%20MUHSIN%20ELEWE%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1426/3/ADEL%20MUHSIN%20ELEWE%20WATERMARK.pdf |
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| Summary: | The mechanical and electrical conductivity of a system based on ABS (acrylonitrile butadiene
styrene) filled with metal powder have been studied. Copper powder having different percentage
was used as fillers. Polymer composite investigated to produce high electrical conductivity from
a low-cost thermoplastic with low conductive filler loading concern over the process ability. The
composite preparation conditions allow the formation of a metal powder distribution in the
polymer matrix volume to create a good network of electrically conductive fillers. The main
objective of this study is to investigate the feasibility of producing functional composit material
based on effective mixture. And also to formulate the metal-plastic which can produced by
molding technology. ABS is compounded with a copper powder in the mixing machine at 190 to
230ºC for 15 minutes at 30 rpm, then charged to the plastic grinder machine in order to form the
composite in suitable size to feed it in molding machine. The influence of viscosity on
processing selection is being mapped by MFI test in order to perform the samples in a proper
molding technology. The compositions were adjusted as the polymer volumes were equal to
10%, 20% for injection molding machine process and 30% to 70% were used in hot press
molding machine process. In order to understand the variation in electrical and mechanical
properties, several tests were performed such as density, porosity, tensile, hardness and IV test.
Experimental data shows that the strength of the composite improved while the electrical
resistivity decreases with the arising of percolation thresholds. The key parameter in this case is
the packing factor F which equal to 0.46, represents the maximum point of percolation
threshold that achieve conductive composite. |
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