中华医学超声杂志

应用化学 ›› 1995, Vol. 0 ›› Issue (2): 88-91.

• 研究论文 • 上一篇    下一篇

高密度聚乙烯/低密度聚乙烯/乙烯-醋酸乙烯共聚物共混体系的结晶行为

于旻1, 杨连军1, 李三喜2, 古利新2   

  1. 1. 中国科学院长春应用化学研究所, 长春 130022;
    2. 沈阳化工学院高分子材料系, 沈阳
  • 收稿日期:1994-07-24 修回日期:1994-10-18 出版日期:1995-04-10 发布日期:1995-04-10

Crystallization fo HDPE/LDPE/EVA Blends

Yu Min1, Yang Lianjun1, LiSanxi2, Gu Lixin2   

  1. 1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022;
    2. Polymer Science Department, Shenyang Institute of Chemical Technology, Shenyang
  • Received:1994-07-24 Revised:1994-10-18 Published:1995-04-10 Online:1995-04-10

PDF

421

被引次数

1

摘要： 通过DSC和WAXD研究了高密度聚乙烯/低密度聚乙烯/乙烯-醋酸乙烯共聚物(HDPE/LDPE/EVA)三元共混体系的热行为和结晶性能.发现当HDPE含量小于40%时,EVA对LDPE起稀释剂作用,促进HDPE、LDPE的晶相分离,使HDPE、LDPE单独结晶.当HDPE含量高于40%时,LDPE片晶进入HDPE晶相.形成与LDPE在片晶水平上的共晶.

关键词: HDPE, LDPE, EVA, 共混物, 共晶

Abstract: The thermal and crystallization behaviour of HDPE/LDPE/EVA blends have been studied by DSC and WAXD technigues. The results showed that when HDPE content was less than 40%, the EVA as a diluent for the LDPE,promotes crystal phase separation of HDPE and LDPE; when the content of HDPE was more than 40%,LDPE may enter into HDPE crystalline regions,forming cocrystallite in the lamel lar regian.

Key words: HDPE, LDPE, EVA, blend, cocrystallization

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