摘要
从微观层面讨论了系带分子链的数量、相对分子质量及其分布、短支链含量及其分布和片晶厚度等单个与多个微观结构参数与聚乙烯(PE)材料耐慢速裂纹扩展(SCG)的相关性。结果表明,对单个微观结构参数来说,相对分子质量及其分布、短支链含量及分布与PE管材的耐SCG性能之间有更加明显的相关性;对多个微观结构参数组成的结构参数,能够很好地测量PE的耐SCG性能。
In this paper,we analyzed the correlation between the slow crack propagation of PE and the single/multiple microstructural parameters including the number of molecular chains,molecular weight and distribution,content and distribution of short-chain molecules,and lamella thickness.Many studies indicated that the molecular weight and its distribution,content and distribution of short-branched chains exhibited a more significant correlation with the SCG resistance of PE pipes than other single microstructural parameters.The SCG resistance of PE pipes could be well measured with the structural parameters consisting of the multiple microstructural parameters.
作者
杨波
左晓锋
王志刚
何建军
黄国家
何嘉平
YANG Bo;ZUO Xiaofeng;WANG Zhigang;HE Jianjun;HUANG Guojia;HE Jiaping(Guangzhou Special Pressure Equipment Inspection And Research Institute,Guangzhou 510663,China;College of Activation,Changsha University of Science&Technology,Changsha 410114,China)
出处
《中国塑料》
CAS
CSCD
北大核心
2019年第11期91-98,共8页
China Plastics
基金
广东省市场监督管理局科技项目(2017CT15)、(2018CT29)
