Morphology and Cure Behavior of Multi-walled Carbon Nanotubes-based Thermally Conductive Adhesive

被引：0

作者：

王军霞 ^{[1
]}

晏石林 ^{[1
]}

HE Yunban ^{[2
]}

YAN Fei ^{[1
]}

XIE Beiping ^{[1
]}

机构：

[1] School of Science, Wuhan University of Technology

[2] Guangzhou Yueneng Power Technology Development Co.Ltd

来源：

Journal of Wuhan University of Technology(Materials Science) | 2014年 / 03期

基金：

中央高校基本科研业务费专项资金资助; 中国国家自然科学基金;

关键词：

adhesive; carbon nanotubes; thermal analysis; degradation;

D O I：

暂无

中图分类号：

TB383.1 [];

学科分类号：

070205 ; 080501 ; 1406 ;

摘要：

We evaluated the cure behavior of multi-walled carbon nanotubes(MWCNTs) based thermally conductive adhesive by comprehensively thermal analysis, which presented extremely complicated variability of conversion ratio α as a function of temperature with synergistic action of positive effect and negative volumeblocking effect of MWCNTs and cross-linked network of cured polymer molecules. Due to the decomposition of MWCNTs and degradation of polymer, the mass drop is dramatically obvious over the temperature range of 330-370 ℃. Binary resins fi lled with acid-treated MWCNTs present similar reaction interval as neat epoxy and matrix resins, which is distinct from the material fi lled with raw MWCNTs. The alteration of the crystalline temperature and cure temperature of resins is attributed to heterogeneous nucleation of MWCNTs in matrix resins. The –COOH group of acid-treated MWCNTs reacts with epoxy groups and thus generates cross-linking, accelerates the reaction rate and reduces the cure temperature.

引用

页码：451 / 454

页数：4

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