Electrical and flame-retardant properties of carbon nanotube/poly(ethylene terephthalate) composites containing bisphenol A bis(diphenyl phosphate)

被引:35
作者
Wu, Zhaofeng [1 ]
Xue, Meng [1 ]
Wang, Hua [1 ]
Tian, Xingyou [1 ]
Ding, Xin [1 ]
Zheng, Kang [1 ]
Cui, Ping [2 ]
机构
[1] Chinese Acad Sci, Key Lab Mat Phys, Inst Solid State Phys, Hefei 230031, Peoples R China
[2] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315040, Zhejiang, Peoples R China
基金
中国国家自然科学基金;
关键词
Flame retardant; Electrical conductivity; Carbon nanotubes; STATE SHEAR PULVERIZATION; MECHANICAL-PROPERTIES; POLYMER BLENDS; NANOTUBE NANOCOMPOSITES; BEHAVIOR; FLAMMABILITY; PERCOLATION; NETWORKS; COMPATIBILIZATION; REINFORCEMENT;
D O I
10.1016/j.polymer.2013.04.051
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The uniform dispersion of carbon nanotubes (CNTs) in poly(ethylene terephthalate) (PET) was achieved by the liquid bisphenol A bis(diphenyl phosphate) (BDP) assisted pre-dispersion melt mixing. Most of the CNTs existed in a filamentous stretched state and a percolation threshold was achieved at 0.28 vol.% CNTs. In addition, the uniformly dispersed CNTs, acting as a framework to support the char produced by the oxidation of the PET and BDP, inhibited the vigorous bubbling process during combustion. The char adhering to the CNTs lowered their heat-transfer efficiency and made the CNT network layer more compact. Thus, the flame-retardant property was significantly improved since the network layer consisted of CNTs and chars, acting as a heat shield, more effectively reduced the exposure of the PET resin to the external air and heat feedback of the heat flux. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码:3334 / 3340
页数:7
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