线型聚乙烯熔体的剪切弹性行为表征  

CHARACTERIZATION FOR SHEAR ELASTIC BEHAVIOURS OF LINEAR POLYETHYLENE

作　　者：益小苏[1] 刘志强[1] 李国生[1] 王建民 

机构地区：[1]浙江大学高分子系,杭州310027 [2]齐鲁石化公司研究院,山东淄博255434

出　　处：《高分子材料科学与工程》1993年第6期74-78,共5页Polymer Materials Science & Engineering

摘　　要：利用稳态剪切柔量、可回复剪切应变以及熔体挤出胀大比等参数,定量计算和定性表征了4种线型聚乙烯熔体的剪切弹性行为,研究了各表征参数之间及其与分子量、分子量分布等分子参数的关系,讨论了剪切弹性行为对加工性能的影响。In this paper shear elastic behaviours of linear polyethylene melt were quantitively and qualitively charactenized by rheological parameters such as elastic shear complince Je, recoverable elastic strain SR,melt die swell and so on. The relationships between these parameters and the molecular characteritics were also studied and discussed. The influence of the shear elastic behaviour on the processing property of the PE's was pointed out.

关 键 词：线型聚乙烯 熔体剪切弹性 

分 类 号：O632.12[理学—高分子化学]