Electrical conductive epoxy composites containing cilia-like powders fabricated by mechanical milling |
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Authors: | Minkyung Cho Hyunjoo Choi Muhammad Aslam Jaehyuck Shin Donghyun Bae |
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Affiliation: | (1) Composite Materials Research Group, Korea Institute of Materials Science, 797 Changwon-daero, Changwon, Gyeongnam, 641-831, South Korea;(2) Department of Mechanical Engineering, Center for Composite Materials, University of Delaware, Newark, DE 19716, USA; |
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Abstract: | Electrically conductive epoxy composites were developed by adding cilia-like powders produced by dispersing multi-walled carbon
nanotubes (MWNTs) on copper particles via mechanical milling. During the milling process, the MWNTs were gradually dispersed
and partially embedded in the copper particles, producing cilialike powders that enhanced the electrical conductivity of the
epoxy composites. With further milling, however, excessive embedding of the MWNTs in the copper particles resulted in decreased
electrical conductivity. Electrical conductivity of the epoxy composites containing 24 vol.% of the cilia-like powders (milled
for 1 h) was remarkably enhanced up to 15 S/cm. |
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