应用化学 ›› 1994, Vol. 0 ›› Issue (5): 10-13.

• 研究论文 • 上一篇    下一篇

聚氯乙烯/线性低密度聚乙烯共混体系的相容性

周庆业, 张邦华, 宋谋道, 何炳林   

  1. 南开大学高分子化学研究所 天津 300071
  • 收稿日期:1993-11-11 修回日期:1994-04-29 出版日期:1994-10-10 发布日期:1994-10-10
  • 基金资助:
    国家自然科学基金资助课题

Compatibility of PVC/LLDPE Blends

Zhou Qingye, Zhang Banghua, Song Moudao, He Binglin   

  1. Institute of Polymer Chemistry, Nankai University, Tianjin 300071
  • Received:1993-11-11 Revised:1994-04-29 Published:1994-10-10 Online:1994-10-10

摘要: 用动态力学分析(DMA)和傅利叶变换红外光谱(FTIR)研究了氢化聚丁二烯-b-聚甲基丙烯酸甲酯(HPBD-b-PMMA)共聚物增容剂对聚氯乙烯(PVC)与线性低密度聚乙烯(LLDPE)共混体系的增容作用。增容剂使共混物中两相的玻璃化温度发生变化,说明其相容性增加。FTIR的结果表明,增容剂中羰基与PVC的α氢形成氢键,使C=O,H─C及C─Cl的振动频率变化,峰形加宽。

关键词: 聚氯乙烯, 线性低密度聚乙烯, 共混物, 共聚物增容剂, 相容性

Abstract: The poly(butadiene-b-methyl methacrylate) (PBD-b-PMMA) copolymer has been hydrogenated to form hydrogenated HPBD-b-PMMA copolymer which can be used as a compatibilizer for PVC/LLDPE blends.The results of DMA and FTIR show that HPBD-b-PMMA is an excellent compatibilizer which changed the Tgs of two phases in blends.The hydrogen bonds are considered to be formed between C=O groups of PMMA and H-C-Cl groups of PVC,which weak the interaction between different macromolecules.

Key words: polyvinylchloride, linear low density polyethylene, blend, copolymer compatibilizer, compatibility