Enhanced thermal conductivity by combined fillers in polymer composites

被引：28

作者：

Li, Haitong ^{[1
,2
]}

Chen, Wei ^{[1
]}

Xu, Jinzao ^{[1
]}

Li, Jia ^{[1
]}

Gan, Lin ^{[1
]}

Chu, Xiaodong ^{[1
]}

Yao, Youwei ^{[1
]}

He, Yanbing ^{[1
]}

Li, Baohua ^{[1
]}

Kang, Feiyu ^{[1
,2
]}

Du, Hongda ^{[1
]}

机构：

[1] Tsinghua Univ, Grad Sch Shenzhen, Guangdong Prov Key Lab Thermal Management Engn &, Shenzhen 518055, Peoples R China

[2] Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

来源：

THERMOCHIMICA ACTA | 2019年 / 676卷

关键词：

Thermal conductivity; Interface thermal resistance; Combined filler; Effective medium theory; CARBON NANOTUBE; ELECTRICAL-CONDUCTIVITY; MECHANICAL-PROPERTIES; GRAPHENE; INTERFACE; NANOCOMPOSITES; GRAPHITE;

D O I：

10.1016/j.tca.2019.04.008

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper reports a new way of improving the thermal conduction property of polymer composites composed of silicone rubber and combined fillers obtained by attaching spherical alumina particles to carbon fibers using spray-drying method. The experimental results showed that the thermal conductivities of the polymer composites were 16, 28, 30, 32, and 42% higher than those of composites with untreated carbon fibers at the same content. The analysis based on effective medium theory revealed that the interface thermal resistance decreases from 1.2 x 10(-6) m(2)K/W to 8.5 x 10(-7) m(2)K/W in polymer composites. It demonstrates that the combined fillers could decrease the interface thermal resistance to improve the thermal conduction property of polymer composites, and thus are promising for the development of high-performance thermally conductive products.

引用

页码：198 / 204

页数：7

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