超高分子量聚乙烯薄膜制备方法与应用  

Preparation and applications of ultrahigh molecular weight polyethylene films

作　　者：张文睿 贾涵 张鑫 潘亚敏[1] 刘春太[1] 申长雨[1] 刘宪虎[1] ZHANG Wenrui;JIA Han;ZHANG Xin;PAN Yamin;LIU Chuntai;SHEN Changyu;LIU Xianhu(State Key Laboratory of Structural Analysis,Optimization and CAE Software for Industrial Equipment,National Engineering Research Center for Advanced Polymer Processing Technology,College of Materials Science and Engineering,Zhengzhou University,Zhengzhou 450002)

机构地区：[1]郑州大学材料科学与工程学院,工业装备结构分析优化与CAE软件全国重点实验室,橡塑模具国家工程研究中心,郑州450002

出　　处：《中国塑料》2023年第5期1-8,共8页China Plastics

摘　　要：超高分子量聚乙烯(PE-UHMW)是指分子量在100万以上的聚乙烯材料,其分子结构与高密度聚乙烯(PEHD)类似,是一种综合性能较为优异的工程塑料。PE-UHMW薄膜是一种有机高分子膜,是以PE-UHMW为聚合物基体,进行填料或结构改性并加工至一定厚度的新型功能材料,主要分为无孔薄膜及微孔薄膜2种。因其综合性能优异,具有耐冲击、耐低温、耐腐蚀等性能,被广泛应用于纺织、包装、农业、食品、医疗、锂离子电池隔膜等领域。但由于其分子量较高,分子链间存在大量缠结且熔融状态下流动性不佳等特点,使其难以通过常规方法制备出性能优异的薄膜材料。如今,PE-UHMW的制备及加工工艺得到了较为迅速的发展,本文根据PE-UHMW的结构特点,介绍了近年来PE-UHMW薄膜的研究进展、性能优势、常用制备方法以及主要应用。Ultrahigh molecular weight polyethylene(PE-UHMW)is a polyethylene material with a molecular weight of 1 million or more,and its molecular structure is similar to that of high-density polyethylene.It is an engineering plastic with excellent overall performance.PE-UHMW films are a new type of organic functional polymer films,which are made of PE-UHMW as a polymer matrix with fillers or through structural modification and processed to a certain thick-ness.PE-UHMW films are mainly divided into non-porous films and microporous films.PE-UHMW films are widely used in textile,packaging,agriculture,food,medical and lithium-ion battery separators thanks to their excellent impact resistance,low-temperature resistance,corrosion resistance and other properties.However,owing to a large molecular weight,a great number of entanglements between molecular chains,and poor flowability in the molten state,it is difficult to prepare film materials with excellent performance through conventional methods.This paper introduces the research progress,performance advantages,common preparation methods,and main applications of PE-UHMW films in recent years in terms of the structural characteristics of PE-UHMW.

关 键 词：超高分子量聚乙烯 薄膜 制备方法 研究进展 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]