中华医学超声杂志

应用化学 ›› 1996, Vol. 0 ›› Issue (4): 10-13.

• 研究论文 • 上一篇    下一篇

PP－g－PMMA在PP/PVDF共混体系中的应用

胥伟清, 田军, 林晓, 徐纪平, 黄葆同   

  1. 中国科学院长春应用化学研究所 长春 130022
  • 收稿日期:1995-10-18 修回日期:1996-03-21 出版日期:1996-08-10 发布日期:1996-08-10

Application of PP-g-PMMA in the Blend System of PP/PVDF

Xu Weiqing, Tian Jun, Lin Xiao, Xu Jiping, Huang Baotong   

  1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022
  • Received:1995-10-18 Revised:1996-03-21 Published:1996-08-10 Online:1996-08-10

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摘要： 利用聚丙烯等离子体接枝甲基丙烯酸甲酯共聚物(PP-g-PMMA)作增容剂,研究了其在聚丙烯/聚偏氟乙烯(PVDF)共混体系中的作用。增容是通过PMMA与PVDF的偶极-偶极相互作用实现的。接枝共聚物使共混体系的抗张强度和模量均有提高,由不同等离子体处理时间所得的PP-g-PMMA,接枝率在7.7%～300%具有最好的增容效果;而由不同后聚合时间所得的共聚物,接枝率在30%～80%具有最好的增容效果。

关键词: 聚丙烯, 聚偏氟乙烯, 共混增容, 偶极－偶极相互作用

Abstract: Plasma-induced graft copolymers of methyl methacrylate onto polypropylene (PP-g-PMMAI were used as compatilizers in the blend system of PP and polyvinylidene fluoride (PVDF).SEM and FTIR showed that it was the dipole-dipole interaction between the fluorine of PVDF and the carbonyl of PMMA of the compatilizer that made the polymers compatible. Mechanical property studies of the blend system showed that PP-g-PMMA copolymers with grafting yields of 7.7%～300% from various plasma treatment time or of 30%～80% from different post-polymerization time had the best compatibility effect.

Key words: polypropylene, polyvinylidene fluoride, blending compatibility, dipole-dipole interaction

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