中国塑料 ›› 2008, Vol. 22 ›› Issue (05): 44-47 .DOI: 10.19491/j.issn.1001-9278.2008.05.009

• 材料与性能 • 上一篇    下一篇

相容剂对聚丙烯/聚酞胺体系界面张力的影响

韩向艳   

  1. 辽宁石油化工大学化学与材料科学学院,辽宁 抚顺113001
  • 收稿日期:2008-01-11 修回日期:1900-01-01 出版日期:2008-05-25 发布日期:2008-05-25

Effect of Compatibilizers on the Interfacial Tension of PP/PA6 Blends

HAN Xiang-yan   

  1. School of Chemistry&Materials Science, Liaoning Shihua University, Fushun 1 13001 ,China
  • Received:2008-01-11 Revised:1900-01-01 Online:2008-05-25 Published:2008-05-25
  • Contact: HAN Xiang-yan

摘要: 采用断裂纤维丝线法和变形液滴回缩法两种方法相结合,在线观察聚酰胺6(PA6)液滴在聚丙烯(PP)中的回缩过程,研究不同相容剂对该体系界面张力的影响。结果表明,PA6液滴在剪切场下发生变形,然后在界面张力的作用下逐渐回缩成球形,并测得该体系的界面张力为7.16 mN/m。添加相容剂可以显著降低体系的界面张力。不同相容剂[聚丙烯接枝马来酸酐(PP-g-MA),聚丙烯接枝丙烯酸(PP-gg-AA)、氢化苯乙烯-丁二烯-苯乙烯嵌段共聚物(SEBS)对体系界面张力影响不同,满足以下关系:γPP/PA6 > γPP/SEBS/PA6 > γPP/PP-g-AA/PA6 > γPP/PP-g-MAH/PA6

关键词: 聚丙烯, 聚酰胺6, 相容剂, 断裂纤维丝线法, 变形液滴回缩法

Abstract: In this work, the interfacial tension between PA6/PP was studied by combining the breaking thread and the deformed drop retraction methods. The retraction behavior of polyamide 6(PA6) drops in polypropylene(PP) was on-line investigated,and the effect of compatibilizers on the interfacial tension between PP/PA6 was explored .It showed that the PA6 drops deformed under shear flow, and then retraded to spheroid under interfacial tension. The interfacial tension was 7.16 mN/m for PP/PA6 blends and decreased with introduction of the compatibilizer. The interfacial tension of different blends was in
the following order:γPP/PA6 > γPP/SEBS/PA6 > γPP/PP-g-AA/PA6 > γPP/PP-g-MAH/PA6

Key words: polypropylene, polvamidc 6;compatibilizer;breaking thread method;deformed drop retraction method