Dramatic Effects of Scalable SNN-Assisted Melt Dispersion on Thermal Conductivity and Coefficient of Thermal Expansion of Nanocomposites

被引：3

作者：

Kumar, Sandeep ^{[1
]}

Lively, Brooks ^{[1
]}

Liu, Tian ^{[1
]}

Sun, Lili ^{[1
]}

Tangpong, Annie ^{[2
]}

Zhong, Wei-Hong ^{[1
]}

机构：

[1] Washington State Univ, Sch Mech & Mat Engn, Pullman, WA 99164 USA

[2] N Dakota State Univ, Dept Mech Engn & Appl Mech, Fargo, ND 58108 USA

来源：

MACROMOLECULAR MATERIALS AND ENGINEERING | 2011年 / 296卷 / 02期

基金：

美国国家科学基金会;

关键词：

linear coefficient of thermal expansion; nanocomposites; processing; solid nano nectar; thermal conductivity; CARBON NANOTUBE; POLYMER NANOCOMPOSITES; POLYCARBONATE; BEHAVIOR; STATE;

D O I：

10.1002/mame.201000262

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

It is demonstrated that SNN-assisted melt dispersion can lead to a significant improvement of the thermal conductivity of PC/MWCNT composites accompanied by a dramatic reduction in their linear CTE. The thermal conductivity of the SNN-containing composites after the 2-step process was about 95% higher than that of neat PC and 25% higher than that from 1-step processing at same loading. The CTE below the glass-transition temperature of composites with a 1.0 wt.-% MWCNT loading is substantially reduced compared to the neat polymer. A reduction in the CTE of up to 60.8% is observed for composites from the 2-step process. Simultaneous achievement of high thermal conductivity and low CTE is required for electronic packaging in microelectronics for device protection.

引用

页码：151 / 158

页数：8

共 23 条

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