高等学校化学学报 ›› 1994, Vol. 15 ›› Issue (8): 1244.

• 论文 • 上一篇    下一篇

力化学降解对聚氯乙烯加工流变行为的影响

郭少云, 徐僖   

  1. 成都科技大学高分子研究所, 高分子材料工程国家重点实验室, 成都, 610065
  • 收稿日期:1993-07-20 修回日期:1993-12-25 出版日期:1994-08-24 发布日期:1994-08-24
  • 通讯作者: 郭少云,男,31岁,博士,副教授.
  • 作者简介:郭少云,男,31岁,博士,副教授.
  • 基金资助:

    国家自然科学基金;国家教委博士点基金;中国石油化学工业总公司资助

Effect of Mechanochemical Degradation on Rheological Behavior of PVC

GUO Shao-Yun, XU Xi   

  1. Polymer Research Institute, Chengdu University of Science and Technology;The State Key Laboratory of Polymer Materials Engineering, Chengdu, 610065
  • Received:1993-07-20 Revised:1993-12-25 Online:1994-08-24 Published:1994-08-24

摘要: 采用Brabender塑化仪和毛细管流变仪研究了经力化学降解制得的聚氯乙烯(PVC)的加工流变行为。结果表明,降解的PVC塑化时间比未降解的PVC明显缩短,塑化速度和熔化效率也明显加快,熔体粘度及玻璃比温度降低。

关键词: 力化学降解, 聚氯乙烯, 流变行为

Abstract: The rheological behavior of mechanochemically degraded poly (vinyl chloride) (PVC) was studied through Brabender plasticorder and capillary rheometer.The experimental results show that the degraded PVChas much shorter plasticizing time, high plasticizing rate and lower melt viscosity and glass transition temperature as compared with undegraded PVC. The results provide a theoretical base for using the low molecular weight PVCprepared by mechanochemical method as plasticizer for high molecular weight PVC.

Key words: Mechanochemical degradation, Poly(vinyl chloride), Rheological behavior

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