文献类型：期刊文献

英文题名：Influence of the hard-segment content on the structure and properties of segmented polyurea

作者：Liu, Jian-Zai; Pan, Zhao-Qi; Gao, Yun

机构：[1] School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China

年份：2006

卷号：32

期号：10

起止页码：1187

外文期刊名：Huadong Ligong Daxue Xuebao /Journal of East China University of Science and Technology

收录：EI(收录号：20065110317718)

语种：英文

摘要：Polyurea was prepared from amine terminated polyether (Jeffamine D-2000), isophorone diisocyanate (IPDI) and diethyltoluene diamine (DETDA) as primary materials. The influences of hard-segment 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.