Functionalized graphite nanoplatelets/epoxy resin nanocomposites with high thermal conductivity

被引：331

作者：

Gu, Junwei ^{[1
]}

Yang, Xutong ^{[1
]}

Lv, Zhaoyuan ^{[1
]}

Li, Nan ^{[1
]}

Liang, Chaobo ^{[1
]}

Zhang, Qiuyu ^{[1
]}

机构：

[1] Northwestern Polytech Univ, Sch Sci, Dept Appl Chem, Key Lab Space Appl Phys & Chem,Minist Educ, Xian 710072, Shaan Xi, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2016年 / 92卷

基金：

中国国家自然科学基金;

关键词：

Thermally conductive nanocomposites; Graphite nanoplatelets (GNPs); Bisphenol-A epoxy resin (E-51); Surface functionalization; MECHANICAL-PROPERTIES; EPOXY-RESIN; POLYMER COMPOSITES; GRAPHENE; NITRIDE; FILLER;

D O I：

10.1016/j.ijheatmasstransfer.2015.08.081

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Graphite nanoplatelets (GNPs) are performed to fabricate GNPs/bisphenol-A epoxy resin (GNPs/E-51) nanocomposites with high thermal conductivity via casting method. And the "two-step" method of methanesulfonic acid/gamma-glycidoxypropyltrimethoxysilane (MSA/KH-560) is introduced to functionalize the surface of GNPs (fGNPs). The KH-560 molecules have been successfully grafted onto the surface of GNPs. The thermal conductivities of the fGNPs/E-51 nanocomposites are increased with the increasing addition of fGNPs, and the corresponding thermally conductive coefficient of the fGNP5/E-51 nanocomposites is improved to 1.698 W/mK with 30 wt% fGNPs, 8 times higher than that of original E-51 matrix. The flexural strength and impact strength of the fGNP5/E-51 nanocomposites are optimal with 0.5 wt% fGNPs. The thermal stabilities of the fGNP5/E-51 nanocomposites are also increased with the increasing addition of fGNPs. For a given GNPs loading, the surface functionalization of GNPs by MSA/KH-560 exhibits a positive effect on the thermal conductivities and mechanical properties of the nanocomposites. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：15 / 22

页数：8

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