文献类型：期刊文献

英文题名：Improved thermal conductivity of polycarbonate composites filled with hybrid exfoliated graphite/multi-walled carbon nanotube fillers

作者：Zhang, Feng[1];Li, Qiuying[1];Liu, Yujin[1];Zhang, Shijie[1];Wu, Chifei[1];Guo, Weihong[1]

机构：[1]E China Univ Sci & Technol, Shanghai Key Lab Polymer Mat, Sch Mat Sci & Engn, Key Lab Ultrafine Mat,Minist Educ, Shanghai 200237, Peoples R China

年份：2016

卷号：123

期号：1

起止页码：431

外文期刊名：JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY

收录：;EI(收录号：20152801019562);WOS:【SCI-EXPANDED(收录号:WOS:000368187700042)】；

基金：This work is supported by National Natural Science Foundation of China (Grant No. 51103040), Shanghai Leading Academic Discipline (B502), Science Foundation of China Postdoctor (2013M531140) and Shanghai Key Laboratory Project (08DZ2230500).

语种：英文

外文关键词：Polycarbonate; Carbon filler; Thermal conductivity; Hybrid filler

摘要：The thermal conductivities of polycarbonate (PC) composites filled with carbon fillers, including carbon black (CB), multi-walled carbon nanotubes (MWCNTs) and exfoliated graphite (EG), were studied. EG filler provided substantially greater thermal conductivity enhancement when embedded into PC matrix compared with CB and MWCNTs at the same loading. To further improve the thermal conductivity of PC composite, a hybrid EG/MWCNTs filler was used. When the hybrid filler loading was 10 mass%, the radio of EG: MWCNTs was 9:1, and the thermal conductivity of PC composite showed a maximum value of 1.19 W m(-1) K-1 higher than that filled with EG or MWCNTs alone, indicating that the combination of EG and MWCNTs demonstrated a synergistic effect for the thermal conductivity enhancement of PC. EG/MWCNTs/PC composite with thermal conductivity > 5 W m(-1) K-1 was fabricated when the filler content was 40 mass%, which would widen its field of applications in electrons, LED lamps and aerospace.