文献类型：期刊文献

中文题名：热处理对聚乙烯／炭黑导电复合体系形态结构及PTC特性的影响

英文题名：The Effeet of Thermal Treatment on Morphological Structure and PTC Properties in Conductive LDPE/CB Composite

作者：罗延龄[1];王庚超[1];方斌[1];张炳玉[1];张志平[1]

机构：[1]华东理工大学材料科学研究所

年份：1996

卷号：9

期号：3

起止页码：329

中文期刊名：功能高分子学报

外文期刊名：Journal of Functional Polymers

收录：CSTPCD;;CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：结晶及形态;热处理;PTC效应;聚乙烯/炭黑复合物

外文关键词：Crystalline and morphology, Annealing, PTC effect, LDPE/CB composite

摘要：借助ＷＡＸＤ、ＳＡＸＤ和ＤＳＣ等手段研究了炭黑与聚乙烯复合体系在不同热处理条件下的结晶行为及聚集态结构的大尺寸效应对ＰＴＣ（Ｐｏｓ．Ｔｅｍｐ．Ｃｏｅｆｆ．）特性的影响。结果表明，热处理不仅提高基体的结晶度，而且使基体的长周期和微晶尺寸增加，提高导电复合物ＰＴＣ强度及ＰＴＣ特性的重复稳定性。由此提出，不仅结晶度大小，而且聚集态大尺寸效应性能对ＰＴＣ特性有重要影响的新观点。
In this paper, the effect of the behavior of melting and crystallization, long spacing and crystal particle size in polyethylene/CB composite on PTC properties were investigated by means of WAXD, SAXS, DSC et al The experimental results showed that the crystallinity, long spacing and crystal particle size of the matrix were raised by annealing, and the PTC intensity and reproducibility of resistivity temperature curve were enhaneed The paperpoints out that not only crystallinity, but long spacing and crystal particle size also play an important part in PTC properties