中国塑料 ›› 2013, Vol. 27 ›› Issue (02): 26-29 .DOI: 10.19491/j.issn.1001-9278.2013.02.005

• 材料与性能 • 上一篇    下一篇

2羟乙基氨基甲酸2羟丙酯扩链聚氨酯弹性体的性能研究

王改敬 贾林才   

  1. 山西省化工研究所
  • 收稿日期:2012-10-31 修回日期:2012-12-07 出版日期:2013-02-26 发布日期:2013-02-26

Study on Properties of 2hydroxypropyl (2hydroxyethyl) Carbamate Chain Extension Polyurethane Elastomers

WANG gai-jing   

  • Received:2012-10-31 Revised:2012-12-07 Online:2013-02-26 Published:2013-02-26
  • Contact: WANG gai-jing

摘要: 以2羟乙基氨基甲酸2羟丙酯或1,4丁二醇作为扩链剂,采用二苯基甲烷二异氰酸酯、聚ε己内酯二醇或聚己二酸乙二丙二酯二醇合成了聚氨酯弹性体。采用差示扫描量热仪、动态热机械分析仪、电子万能试验机、橡胶回弹性试验机等仪器对产物进行了表征。结果表明,与1,4丁二醇相比,HPHEC作为扩链剂时,其凝胶时间约是1,4丁二醇的3倍,制得的聚氨酯弹性体撕裂强度提高10 %~25 %,同时发现其玻璃化转变温度(Tg)和力学损耗角正切(tanδ)升高。

关键词: 聚氨酯弹性体, 2-羟乙基氨基甲酸-2-羟丙酯, 性能

Abstract: Polyurethane elastomer was synthesized with diphenylmethane diisocyanate and poly εcaprolactone glycol/PEPA using 2hydroxypropyl (2hydroxyethyl) carbamate (HPHEC) or 1, 4butanediol as a chain extender, The product was characterized using differential scanning calorimeter(DSC), dynamic mechanical analyzer(DMA), electronic universal testing machine, and rubber resilience tester. It showed that gel time of polyurethane elastomer based on HPHEC was 3 times that of based on 1, 4butanediol. Tear strength of polyurethane elastomer based on HPHEC increased 10 %~ 25 %, and the glass transition temperature (Tg) and dynamic loss tangent (tanδ) also increased.

Key words: polyurethane elastomer, 2-hydroxypropyl (2-hydroxyethyl)carbamate, property