| 硬段含量对嵌段聚脲结构与性能的影响 |
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| 引用本文： | 刘检仔,潘肇琦,杲云. 硬段含量对嵌段聚脲结构与性能的影响[J]. 华东理工大学学报(自然科学版), 2006, 32(10): 1187-1191 |
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| 作者姓名： | 刘检仔 潘肇琦 杲云 |
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| 作者单位： | 华东理工大学材料科学与工程学院,上海,200237;华东理工大学材料科学与工程学院,上海,200237;华东理工大学材料科学与工程学院,上海,200237 |
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| 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。
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| 关 键 词： | 聚脲 硬段 氢键 微相分离 力学性能 |
| 文章编号： | 1006-3080（2006）10-1187-05 |
| 收稿时间： | 2006-01-05 |
| 修稿时间： | 2006-01-05 |
Influence of the Hard-Segment Content on the Structure and Properties of Segmented Polyurea |
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| LIU Jian-zai,PAN Zhao-qi,GAO Yun. Influence of the Hard-Segment Content on the Structure and Properties of Segmented Polyurea[J]. Journal of East China University of Science and Technology, 2006, 32(10): 1187-1191 |
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| Authors: | LIU Jian-zai PAN Zhao-qi GAO Yun |
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| Abstract: | 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 SR_s,represent of microphase separation for(soft-segment) decreases.Besides,these materials have better mechanical properties at 35% hard-segment(content). |
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| Keywords: | polyurea hard-segment hydrogen bond microphase separation mechanical property |
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