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导电聚苯胺纳米纤维对聚乙烯/炭黑复合体系电阻行为的影响
引用本文:苏畅,王庚超,黄发荣,孙燕华. 导电聚苯胺纳米纤维对聚乙烯/炭黑复合体系电阻行为的影响[J]. 高分子材料科学与工程, 2009, 0(2): 77-80
作者姓名:苏畅  王庚超  黄发荣  孙燕华
作者单位:华东理工大学材料科学与工程学院超细材料制备与应用教育部重点实验室;
摘    要:采用水溶液氧化聚合和热掺杂相结合的技术制备十二烷基苯磺酸掺杂的聚苯胺(PANI-DBSA)纳米纤维,并将PANI-DBSA纳米纤维与低密度聚乙烯(LDPE)和炭黑(CB)进行熔融共混制得PANI-DBSA/LDPE/CB导电复合材料,研究了PANI-DBSA纤维的引入对导电复合材料电阻行为的影响。结果表明,添加PANI-DBSA纳米纤维,复合材料的逾渗阀值移向较低炭黑含量,复合材料的PTC强度得到一定程度的提高,复合材料的电阻率-温度曲线的热循环稳定性得以改善。

关 键 词:聚苯胺纳米纤维  低密度聚乙烯  炭黑  PTC特性  电阻行为

Influence of Conducting Polyaniline Nanofibers on the Resistivity Behavior of Low-Density Polyethylene/Carbon Black Composites
SU Chang,WANG Geng-chao,HUANG Fa-rong,SUN Yan-hua. Influence of Conducting Polyaniline Nanofibers on the Resistivity Behavior of Low-Density Polyethylene/Carbon Black Composites[J]. Polymer Materials Science & Engineering, 2009, 0(2): 77-80
Authors:SU Chang  WANG Geng-chao  HUANG Fa-rong  SUN Yan-hua
Affiliation:School of Materials Science and Engineering;Key Laboratory for Ultrafine Materials of Ministry of Education;East China University of Science and Technology;Shanghai 200237;China
Abstract:Polyaniline(PANI) nanofibers doped by dodecylbenzenensulfonic acid(PANI-DBSA) were synthesized by the chemical oxidative polymerization and thermal doping technique.Conducting composites composed of PANI-DBSA nanofibers,low-density polyethylene(LDPE) and carbon black(CB) were prepared by melt processing.The effect of PANI-DBSA nanofibers on the resistivity behavior was investigated in detail.The results show that the LDPE/CB/PANI-DBSA conducting composites present a lower percolation threshold due to the ea...
Keywords:polyaniline nanofibers  low-density polyethylene  carbon black  PTC effect  resistivity behavior  
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