高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (7): 1134.

• 论文 • 上一篇    下一篇

聚二甲基硅氧烷/聚氨酯共混体系的增容作用(Ⅰ)

余海斌, 张邦华, 宋谋道, 郝广杰, 何炳林   

  1. 南开大学高分子化学研究所, 天津, 300071
  • 收稿日期:1994-07-26 修回日期:1995-01-25 出版日期:1995-07-24 发布日期:1995-07-24
  • 通讯作者: 张邦华
  • 作者简介:余海斌,男,31岁,博士,在美国做博士后工作.

Compatibilization of PDMS/PU Blends(Ⅰ)

YU Hai-Bin, ZHANG Bang-Hua, SONG Mou-Dao, HAO Guang-Jie, HE Bing-Lin   

  1. Institute of Polymer Chemistry, Nankai University, Tianjin, 300071
  • Received:1994-07-26 Revised:1995-01-25 Online:1995-07-24 Published:1995-07-24

摘要: 采用二甲基硅氧烷-b-乙二醇嵌段共聚物(DMS-b-OE)对聚二甲基硅氧烷/聚氨酯(PDMS/PU)共混体系的增容,重点研究了增容共混体系的微观形态结构和力学性能之间的关系。扫描电子显微镜、动态力学分析和力学性能测试结果表明:DMS-b-OE对PDMS/PU具有优良的增容作用,改善了PDMS/PU共混体系的相容性,提高了该共混物的力学性能。其抗张强度由3.4MPa提高到7.6MPa。

关键词: 聚二甲基硅氧烷, 聚氨酯, 相容性, 共混物

Abstract: Polydimethylsiloxane-b-(ethylene oxide) block copolymer(DMS-b-OE) was used as compatibilizer for polydimethylsiloxane/polyurethane blends (PDMS/PU) and its effects on morphology, mechanical properties were investigated with SEM, DMA, stress-strain behaviour measurement. The results demonstrated that the compatibility between PDMS and PU was promoted and the mechanical properties were improved.

Key words: Polydimethylsiloxane, Polyurethane, Compatibility, Blend

TrendMD: