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医用HMDI基聚碳酸酯型聚氨酯弹性体的合成与表征
  • ISSN号：1001-9278
  • 期刊名称：《中国塑料》
  • 时间：0
  • 分类：TQ323.8[化学工程—合成树脂塑料工业]
  • 作者机构：[1]北京化工大学有机无机复合材料国家重点实验室, [2]北京化工大学北京市新型高分子材料制备与成型加工重点实验室
  • 相关基金：国家自然科学基金(50933001);国家自然科学基金委创新群体科学基金(51221002)
作者： 姜秀娟[1], 石锐[3], 余成科[1], 陈大福[3], 张立群[1,2]
关键词： 对苯二异氰酸酯, 聚碳酸酯型聚氨酯, 化学交联
中文摘要：

用熔融预聚物法合成了以对苯二异氰酸酯(PPDI)、1,4-丁二醇(BDO)以及三羟甲基丙烷(TMP)为硬段,聚碳酸酯二醇(PCD)为软段的PPDI基聚碳酸酯型聚氨酯弹性体(PCU),研究了交联剂TMP用量对其结构与性能的影响。结果表明,随着TMP含量的增加,拉伸强度和断裂伸长率显著提高,并伴随压缩永久变形的明显下降;随着交联密度的增加,羰基的有序氢键化程度由23%下降至5%,软段相的玻璃化转变温度由-33℃升高到-17℃,表明PCU中软硬段相之间的微相分离程度减小;当TMP含量低于40%时,PPDI基PCU具有良好的耐热性和动态性能。

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期刊信息
  • 《中国塑料》
  • 北大核心期刊（2011版）
  • 主管单位:中国轻工业联合会
  • 主办单位:中国塑料加工工业协会 北京工商大学 轻工业塑料加工应用研究所
  • 主编：刘学
  • 地址：北京市海淀区阜成路11号
  • 邮编：100048
  • 邮箱：cp@plaschina.com.cn
  • 电话：010-68985541
  • 国际标准刊号：ISSN：1001-9278
  • 国内统一刊号：ISSN：11-1846/TQ
  • 邮发代号:82-371
  • 获奖情况:
  • 荣获第三届国家期刊奖
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,荷兰文摘与引文数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:14690