期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2014
卷号：3
期号：6
页码：14034
出版社：S&S Publications
摘要：Copper reinforced polymer matrix composites are widely studied for the applications in electrostaticdissipation (ESD) and electromagnetic interference (EMI) shielding. Mechanicalpropertiesof copper powder filledpolypropylene composites are investigated experimentally.Filler content varies in between 0–40% by weight andareblended by mechanical mixing under dry conditions for 4 hours at 60 rpm and processed by injection molding at 215°C and150 bars. Optical microscopy showed uniform dispersion of Cu particles at lower composition whereas agglomerates wereobserved in the composites at higher Cu loading. Mechanical properties of the injection molded samples were studiedsystematically. As compared to pure PP, density and micro hardnessof composites increases with Cu addition by 35%.Impact energy and impact strength were increased by almost 50%. This was attributed to the better and uniform dispersionof the Cu particles in the matrix. The tensile strength and % elongation were found to decrease with increasing Cu contentin the matrix, as the Cu act as stress arising points under deformation as compared to pure PP.
