乙烯含量对透明无规共聚聚丙烯性能的影响  

Influence of ethylene content on performance of transparent PPR

作　　者：冉崇文[1] 席军[1] 朱军[1] 冯凯[1] 胡斌[1] 

机构地区：[1]中国石油天然气股份有限公司独山子石化分公司研究院,新疆维吾尔自治区橡塑重点实验室,新疆维吾尔自治区克拉玛依市833699

出　　处：《合成树脂及塑料》2016年第5期58-60,78,共4页China Synthetic Resin and Plastics

摘　　要：对国内市场已普遍认可的6种透明无规共聚聚丙烯的乙烯含量进行测试,确定了适合透明无规共聚聚丙烯的最佳乙烯含量。选择乙烯含量不同的无规共聚聚丙烯,考察乙烯含量对无规共聚聚丙烯力学性能、光学性能、溶出物含量的影响。结果表明:随着乙烯含量的增加,无规共聚聚丙烯的分子结构混乱度增加,熔融焓、透明性、韧性提高,熔点降低。同时,无规共聚聚丙烯中的二甲苯可溶物、正己烷提取物含量提高。The ethylene content of six transparent random copolymerized polypropylene（PPR）are measured to determine the optimal ethylene content in the process of producing the PPR. The lnfluence of ethylene content on mechanical properties, optical properties and dissolution content of PPR are studied by observing the products with different ethylene content. The results show that with the increase of ethylene content, degree of chaos, melting entropy, transparency and toughness of the resin rise, while the melting point drops. The xylene soluble and n-hexane extract in the PPR go up at the same time.

关 键 词：聚丙烯 无规共聚 透明 乙烯含量 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]