期刊
JOURNAL OF REINFORCED PLASTICS AND COMPOSITES
卷 36, 期 9, 页码 685-695出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0731684417692055
关键词
Graphene; carbon nanotube; hybrid; tensile properties; electrical conductivity
资金
- Fundamental Research Grant Scheme (FRGS) from Universiti Sains Malaysia [6071284]
- Ministry of Education Malaysia (MOE) (Malaysian International Scholarship (MIS))
Tensile and electrical properties of graphene nanopowder (GNP) and multiwalled carbon nanotubes (MWCNT) filled epoxy thin film nanocomposites were investigated. In addition, synergy effects of various mixture ratios of GNP-MWCNT hybrids on the properties of the epoxy thin film nanocomposites were evaluated. It was found that the addition of GNPs or MWCNTs decreased the tensile properties compared to that of unfilled epoxy. The electrical percolation threshold of MWCNT/epoxy was found to be 0.8vol%. Addition of only 0.1vol% GNPs results in significant improvement in the electrical properties of the composites. Enhanced tensile and electrical properties in the GNP-MWCNT/epoxy hybrid were achieved with GNP-MWCNT ratio of 0.1:0.4. Morphological analysis confirmed the uniform dispersion of both GNPs and MWCNTs within the epoxy matrix. For the hybrid GNP-MWCNT filler system (i.e., with the 0.1:0.4 ratio), MWCNTs were seen to align themselves on the GNPs surfaces creating an interconnected strong nanofiller network in the epoxy.
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