文献类型：期刊文献

中文题名：硬段含量对嵌段聚脲结构与性能的影响

英文题名：Influence of the Hard-Segment Content on the Structure and Properties of Segmented Polyurea

作者：刘检仔[1];潘肇琦[1];杲云[1]

机构：[1]华东理工大学材料科学与工程学院,上海200237

年份：2006

卷号：32

期号：10

起止页码：1187

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：聚脲;硬段;氢键;微相分离;力学性能

外文关键词：polyurea ; hard-segment ; hydrogen bond ; microphase separation ; mechanical property

摘要：以端氨基聚醚、异佛尔酮二异氰酸酯(IPD I)、二乙基甲苯二胺(DETDA)为主要原料,制备了一组硬段含量不同的IPD I基聚脲。通过FT-IR、DSC、SEM以及拉伸等测试手段,研究了硬段含量对聚脲羰基氢键化程度、微观结构及其力学性能的影响。结果表明:随着硬段含量的增加,脲羰基氢键化程度增加;软段相的微相分离率降低,硬段有序程度增大。硬段含量为35%时材料的力学性能较佳。
Polyurea was prepared from amine terminated polyether （Jeffamine D-2000）, isophorone diisocyanate （IPDI） and diethyltoluene diamine（DETDA） as primary materials. The influences of hardsegment content on the degree of the hydrogen bonding of urea groups, micro-structure and properties of polyurea films were studied by means of FT-IR, DSC, SEM and tensile tester. The results show that with the increase of hard-segment content, the degree of hydrogen bonding of urea groups and the degree of order for hard-segment also increase, while the value of SRs, represent of microphase separation for soft-segment decreases. Besides, these materials have better mechanical properties at 35% hard-segment content.