文献类型：期刊文献

中文题名：聚偏氟乙烯/鳞片石墨/碳纤维高导热复合材料的制备

英文题名：Preparation of Poly(vinylidene fluoride)/Flake Graphite/Carbon Fiber Highly Thermal Conductivity of Composite Materials

作者：何达[1];谢林生[1];马玉录[1]

机构：[1]华东理工大学绿色高效过程装备与节能教育部工程研究中心,上海200237

年份：2015

卷号：29

期号：8

起止页码：32

中文期刊名：中国塑料

外文期刊名：China Plastics

收录：CSTPCD;;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

基金：国家自然科学基金(51273065)

语种：中文

中文关键词：聚偏氟乙烯;鳞片石墨;碳纤维;复合材料;热导率;力学性能

外文关键词：poly（vinylidene fluoride） ; flake graphite; carbon fiher; composite; thermal conductivi-ty; mechanical property

摘要：以聚偏氟乙烯(PVDF)树脂为基体,天然鳞片石墨(FG)、碳纤维(CF)为填料,采用熔融共混法制备了PVDF/FG/CF复合导热材料,并研究了FG、CF含量及其改性对复合材料导热性能和力学性能的影响。结果表明,复合材料的热导率随FG含量的增加而增大,力学性能随着FG含量的增加而降低;CF的加入提高了复合材料的力学性能,但热导率略有降低;对CF进行表面氧化处理将使得复合材料的热导率以及力学性能有所提高,当CF含量为5%、FG含量为50%时,复合材料的热导率为11.4 W/(m·K),拉伸强度为48 MPa,断裂伸长率为11%。
Composites with highly thermal conductivity and corrosion resistance were prepared using PVDF as matrix, with flake graphite and carbon fibers as the fillers by melt mixing. The influences of filler＇s content and surface modification on the thermal performance and mechanical properties of the composite were investigated. It was found that with increasing content of flake graphite the thermal conductivity increased, while the mechanical properties decreased. Carbon fibers could also improve the mechanical properties, but decreased the thermal conductivity. The surface modification favored the mechanical properties and thermal conductivity. The thermal conductivity of the composite reached 11.43 W/（m· K）, tensile strength 48 MPa, and tensile elongation break 11%.