期刊文献+

具有独特性能的超低单醇含量聚醚基聚氨酯弹性体 被引量:1

STUDY ON PERFORMANCE OF POLYURETHANE ELASTOMER PREPARED BY ULTRA LOW MONOL CONTENT POLYETHER POLYOL
下载PDF
导出
摘要 采用双金属络合催化剂(DMC)制备具有极低的不饱和度、相对分子量高、分子量分布窄、平均官能度高等特点的新型聚醚多元醇。这种超低单醇含量聚醚多元醇及部分该聚醚取代的聚四氢呋喃醚多元醇制备的聚氨酯弹性体与普通聚氧化丙烯醚多元醇(PPG)、聚四氢呋喃醚多元醇(PTMEG)聚氨酯弹性体性能相比,DMC聚醚基聚氨酯弹性体在力学性能(伸长率、拉伸强度、撕裂强度)和加工性能(釜中寿命、脱模时间等)方面获得了明显改善。 In this paper, a double-metal cyanide complex catalyst (DMC) was used to prepare a new polyether polyol with very low unsaturation, high equivalent molecula weight, narrow molecular weight distributing, high average functionality, etc. It indicates that the mechanical properties (such as elongation, tensile strengh and tear strengh) and working properties(pot life and demoulding time) of polyurethane elastomers synthesized from the new polyether polyol and MDI are superior than those of the polyurethane elastomers obtained from the common PPG and MDI. In addition, the mechanical properties and working properties of polyurethane elastomers based on PTMEG are improved obviously when part of the PTMEG ia replaced by the new polyether polyol.
出处 《高分子材料科学与工程》 EI CAS CSCD 北大核心 2004年第2期220-223,共4页 Polymer Materials Science & Engineering
基金 中国科学院重点资助项目(KY95-S1-401-02)
关键词 双金属络合催化剂 超低单醇含量 高分子量 聚醚多元醇 聚氨酯弹性体 聚醚基 不饱和度 double-metal cyanide catalyst low monol polyether high molecular weight polyether polyol polyurethane elastomer
  • 相关文献

参考文献1

  • 1李正梅 (LI Zheng-mei) 等.聚氨酯工业 (Polyurethane Industry),1999,14(2):12-12.

同被引文献21

引证文献1

二级引证文献5

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部