中国塑料 ›› 2019, Vol. 33 ›› Issue (3): 17-21,27.DOI: 10.19491/j.issn.1001-9278.2019.03.004

• 材料与性能 • 上一篇    下一篇

长碳链聚酰胺1012弹性体的合成与表征

许冬峰1,冯新星2,张卫东3,潘凯1*   

  1. 1. 北京化工大学材料科学与工程学院
    2. 军事科学院系统工程研究院军需工程技术研究所
    3. 泰安市龙腾高分子材料有限公司
  • 收稿日期:2018-10-24 修回日期:2018-11-20 出版日期:2019-03-26 发布日期:2019-04-26

Synthesis and Characterization of Long-carbon-chain Polyamide-1012-Based Elastomer

  • Received:2018-10-24 Revised:2018-11-20 Online:2019-03-26 Published:2019-04-26
  • Contact: Pan -kai E-mail:pankai@mail.buct.edu.cn

摘要: 利用双端羧基封端的聚酰胺1012(PA1012)与聚四氢呋喃醚二醇(PTMG)熔融嵌段共聚合,合成了聚酰胺1012型的热塑性弹性体(TPAE)。采用傅里叶变换红外光谱确定合成了PA1012-b-PTMG嵌段共聚物,采用广角X射线衍射对其结晶性进行了分析,采用差示扫描量热分析、热失重分析、力学性能测试、溶解性分析等方法对弹性体的性能进行了表征。结果表明,合成的PA1012-PTMG弹性体,具有较高的熔点(>180 ℃)与较高的热分解温度(>420 ℃),力学性能与耐溶剂性能优异,是一种性能优异的热塑性弹性体材料。

Abstract: A polyamide-based thermoplastic elastomer (TPAE) was synthesized by melt block copolymerization of a double-end carboxyl-terminated polyamide 1012 (PA1012) and polytetrahydrofuran ether glycol (PTMG). The chemical structure of the resulting block copolymer was identified by Fourier-transform infrared spectroscopy and its crystallization was analyzed by wide-angle X-ray diffraction. Moreover, its performance was investigated by differential scanning calorimetry, thermogravimetric analysis, mechanical measurements and solubility analysis. The results indicated that the as-synthesized elastomer has a melting point higher than 180 °C and a thermal decomposition temperature higher than 420 °C as well as excellent mechanical properties and solvent resistance. The TPAE developed by this work is considered as a type of high performance thermoplastic elastomer material.

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