Synthesis of Polyurethane Prepolymers and Damping Property of Polyurethane/Epoxy Composites

被引：10
|
作者：
Shi, Minxian [1 ]
Zheng, Juanli [1 ]
Huang, Zhixiong [1 ]
Qin, Yan [1 ]
机构：
[1] Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China
来源：
ADVANCED SCIENCE LETTERS | 2011年 / 4卷 / 03期
关键词：
Polyurethane; Epoxy Resin; Damping Property; EPOXY;
D O I：
10.1166/asl.2011.1597
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
A great deal of researches have been concentrated on synthesis, morphology and mechanical properties of polyurethane (PU) modified epoxy resin (EP) composites, but there is still few literature discussing directly about damping properties of PU/EP composites. In this research, polyurethane prepolymer and polyurethane/epoxy prepolymer were synthesized. PU/EP composite cured with polyetheramine D230 was prepared and its morphology was observed by SEM and damping properties were investigated by dynamic mechanical analysis (DMA). SEM observation indicated that PU/EP composites showed rather ductile fracture. DMA analysis indicated that the addition of PU into epoxy resin lowered the glass transition temperature of epoxy resin, and also affected the damping property of epoxy resin curing. PEG molecular weight also affected the damping property of PU/EP composites.
引用
收藏
页码：740 / 744
页数：5
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