Improving Damping Properties and Thermal Stability of Epoxy/Polyurethane Grafted Copolymer by Adding Glycidyl POSS

查看全文 作　　者：Ge-Liang [1]Zhu;Di [1]Han;Ye [1]Yuan;Feng [1]Chen;Qiang [1]Fu

机构地区：[1]College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University

出　　处：《Chinese Journal of Polymer Science》索引2018年第36卷第11期,共6页

基　　金：the National Natural Science Foundation of China for financial support (Nos. 51573102, 51421061, and 51210005) 摘　　要：Modified castor oil-based epoxy resin (EP)/polyurethane (PU) grafted copolymer by glycidyl polyhedral oligomeric silsesquioxane (glycidyl POSS) was synthesized. The damping properties, thermal stability, mechanical properties and morphology of the grafted copolymer modified by glycidyl POSS were studied systematically. The results revealed that the incorporation of glycidyl POSS improved the damping performance evidently and broadened damping temperature range, especially when the glycidyl POSS content was0.2%–1%. At the same time, there was a slight increase in thermal stability with the increase of POSS content. The tensile properties changed with the change of the copolymer's Tg, decreased at low POSS contents and increased at high POSS contents. This modified copolymer has the potential to be used as film damping material or constrained damping layer. 关键词：POSS 机械性质热稳定性共聚物环氧基树脂聚氨酯温度范围

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Improving Damping Properties and Thermal Stability of Epoxy/Polyurethane Grafted Copolymer by Adding Glycidyl POSS

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