Thermal property improvement of polytetrafluoroethylene nanocomposites with graphene nanoplatelets

被引：33
作者：
Cai, Xinzhi [1 ]
Jiang, Zeyi [1 ,2 ]
Zhang, Xinru [1 ,3 ]
Gao, Ting [1 ]
Yue, Kai [1 ,3 ]
Zhang, Xinxin [1 ,2 ]
机构：
[1] Univ Sci & Technol Beijing, Sch Energy & Environm Engn, Beijing 100083, Peoples R China
[2] Univ Sci & Technol Beijing, Beijing Key Lab Energy Saving & Emiss Reduct Met, Beijing 100083, Peoples R China
[3] Univ Sci & Technol Beijing, Beijing Engn Res Ctr Energy Saving & Environm Pro, Beijing 100083, Peoples R China
来源：
RSC ADVANCES | 2018年 / 8卷 / 21期
关键词：
PTFE COMPOSITES; EPOXY NANOCOMPOSITES; SURFACE MODIFICATION; MULTILAYER GRAPHENE; CONDUCTIVITY; OXIDE; FABRICATION; FILLERS;
D O I：
10.1039/c8ra01047a
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Thermal properties including the crystallization behavior, thermal stability and thermal conductivity for a series of graphene nanoplatelet (GNP)-polytetrafluoroethylene (PTFE) nanocomposites were studied. The GNP-PTFE nanocomposites were fabricated via solvent-assisted blending followed by cold-pressing and sintering. The results indicated that the GNP-PTFE nanocomposites retained the good thermal stability of the PTFE matrix, and possessed better crystallization and much higher thermal conductivity than pure PTFE. The thermal conductivity of PTFE nanocomposites with a GNP mass fraction of 20% could reach 4.02 W (m K)(-1), which was increased by 1300% compared with pure PTFE. Additionally, a theoretical model was proposed to analyze the thermal conductivity of GNP-PTFE nanocomposites. It is demonstrated that adding GNPs into PTFE homogeneously can effectively improve the thermal properties of the nanocomposites.
引用
收藏
页码：11367 / 11374
页数：8
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