聚合物PTC材料的老化失效规律研究  

Study on Aging Progress of PTC Conductive Polymeric Composites

作　　者：李景庆[1] 张爽男[1] 许晓秋[1] 田晓明[1] 于万里[1] 

机构地区：[1]天津大学材料科学与工程学院高分子材料系,天津300072

出　　处：《中国塑料》2002年第7期43-46,共4页China Plastics

摘　　要：聚合物PTC材料在很多领域都有广泛应用 ,但材料稳定性一直制约着各种产品的进一步发展 ,以聚乙烯 /乙烯 -醋酸乙烯酯共聚物 /炭墨体系为研究对象 ,采用熔融共混挤出成型的方法进行制样 ,研究了聚合物PTC材料老化失效规律及老化失效过程预测 。PTC conductive polymeric composites can be widely used in many fields of industry of people's daily life.But the composites' further developments are seriously restricted by the poor stability of the composites.PE/EVA/CB systems were prepared using melt processing mixers and some samples were extruded.Then the aging progress of the system was discussed in detail.On the basis of the above analysis a corresponding equation was provided.

关 键 词：聚合物 老化失效规律 稳定性 炭黑 聚乙烯 PTC 复合导电材料 

分 类 号：TQ325[化学工程—合成树脂塑料工业]