摘要
本文以低密度聚乙烯(LDPE)和乙烯-醋酸乙烯酯共聚物(EVA)为基材,炭黑(CB)为导电微粒,探讨了聚合物-炭黑复合物的结构对正温度系数效应(PTC)增强与减弱的影响和炭黑含量与PTC效应的关系以及交联结构对PTC现象的稳定作用.
In this paper,the mechanism of positive temperature coefficient (PTC) effect is investigated by using carbon black filled low density polyethylene and ethylene-vinyl acetate copoly-mer.The influence of carbon black content on the resistivity at room temperature and PTC effect as well as the influence of crosslinking on electrical reproducibility are also discussed.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1992年第9期1278-1281,共4页
Chemical Journal of Chinese Universities
关键词
正温度系数
半导电高分子
炭黑
Positive temperature coefficient,Semiconductor polymer,Carbon black
