中华医学超声杂志

应用化学 ›› 1995, Vol. 0 ›› Issue (4): 66-69.

• 研究论文 • 上一篇    下一篇

聚环氧氯丙烷聚氨酯/聚甲基丙烯酸甲酯IPN力学性能

陈宝铨, 韩孝族, 郭凤春   

  1. 中国科学院长春应用化学研究所, 长春 130022
  • 收稿日期:1994-10-24 修回日期:1995-04-17 出版日期:1995-08-10 发布日期:1995-08-10

Mechanical Properties of Polyepichlorohydrin Polyurethane/Poly(methyl methacrylate)IPNs

Chen Baoquan, Han Xiaozu, Gtio Fengchun   

  1. Changchun Institute of Applied Chemisiry, Chinese Academy of Sciences, Changchun 130022
  • Received:1994-10-24 Revised:1995-04-17 Published:1995-08-10 Online:1995-08-10

PDF

388

被引次数

2

摘要： 利用改变组成比、聚氨酯PU软段(端羟基聚环氧氯丙烷)的分子量、R值(NCO/OH)、异氰酸酯和两网络各自交联剂含量合成出5个系列的聚环氧氯丙烷聚氨酯/聚甲基丙烯酸甲酯互穿聚合物网络(PU/PMMAIPN),利用IPN中交联、互穿、缠结程度的不同,并结合DSC、TEM、动态粘弹谱讨论了IPN力学性能.

关键词: 聚环氧氯丙烷聚氨酯, 甲基丙烯酸甲酯, IPN, 动态粘弹谱, 相态

Abstract: Five series of polyepichlorohydrin-based polyLirethane/poly(methyl methacrylate)interpenetrating polymer networks(PU(PECH)/PMMA IPNs)were synthesized by adjust-ing composition,molecular weight ofPECH,R vahe(isocyanate /hydroxyl ratio),iso-cyanate and crosslinking reagent contents of PU and PMMA,respectively.The tensilestrength,elongation at break and modulus of IPNs were measured,and they varied with thesynthetic condition greatly.DSC,TEM,dynamic mechanical spectroscopy were employed toexplain the changes of mechanical properties.Changes in structure,such as crosslink, inter-penetration and entanglement result in the changes of mechanical properties.

Key words: polyepichlorohydrin polytirethane, poly(methyl methacrylate), IPN, dynamiC me-chanical spectroscopy, morphology

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