Effect of carbon black on improving thermal stability, flame retardancy and electrical conductivity of polypropylene/carbon fiber composites

被引：114

作者：

Yang, Hongfan ^{[1
,2
]}

Gong, Jiang ^{[1
,2
]}

Wen, Xin ^{[1
]}

Xue, Jian ^{[1
]}

Chen, Qing ^{[1
]}

Jiang, Zhiwei ^{[1
]}

Tian, Nana ^{[1
]}

Tang, Tao ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2015年 / 113卷

基金：

中国国家自然科学基金;

关键词：

Carbon fibers; Polymer-matrix composites (PMCs); Electrical properties; Carbon black; POLYMER NANOCOMPOSITES; FLAMMABILITY PROPERTIES; NANOTUBE COMPOSITES; DEGRADATION; RHEOLOGY; MORPHOLOGY; NETWORKS;

D O I：

10.1016/j.compscitech.2015.03.013

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

In this work, carbon black (CB) was introduced into polypropylene/carbon fiber (PP/CF) composite to fabricate multifunctional composites with the improved thermal stability, flame retardancy and electrical conductivity. The morphology investigation showed that one-dimensional CF and zero-dimensional were well dispersed in the PP matrix, and the multistage structure was formed in PP matrix. Compared to pristine PP, the maximum weight loss temperature under air atmosphere was enhanced by 79 degrees C. The peak value of the heat release rate measured by a cone calorimeter was significantly reduced by 70%, and the total heat release decreased from 198 to 166 MJ/m(2). The dramatically enhanced flame retardancy of PP composites was attributed to the formation of a strong three-dimensional (3D) network structure in PP matrix where one-dimensional CF acted as bridges connecting individual zero-dimensional CB, and the accelerated oxidation crosslinking reaction of PP radicals by CB and CF. Furthermore, the electrical conductivity of PP composites was significantly enhanced to 7.8 S/m due to the formation of 3D conductive pathways from CB and CF within the matrix. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：31 / 37

页数：7

共 25 条

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