| PMMA／PEG-TPE半互穿网络聚合物的力学性能 |
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| 引用本文： | 菅晓霞,肖乐勤,周伟良,徐复铭.PMMA／PEG-TPE半互穿网络聚合物的力学性能[J].固体火箭技术,2008,31(4). |
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| 作者姓名： | 菅晓霞 肖乐勤 周伟良 徐复铭 |
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| 作者单位： | 南京理工大学,化工学院,南京,210094 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，南京理工大学创新基金 |
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| 摘 要： | 为提高聚乙二醇聚氨酯弹性体(PEG-TPE)的力学性能,探索了引入聚甲基丙烯酸甲酯(PMMA)合成PMMA/PEG-TPE半互穿网络聚合物(S-IPN)的方法.采用动态热机械分析(DMA)研究了PMMA/PEG-TPE试样的玻璃化转变温度、损耗角正切和储能模量的变化规律.结果表明,PMMA的引入使S-IPN的拉伸强度大幅提高,从PEG-TPE的3.75 MPa提高到PMMA/PEG-TPE(70/30)的26.3 MPa,但S-IPN的断裂伸长率大幅下降.
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| 关 键 词： | 半互穿网络聚合物 PEG热塑性弹性体 聚甲基丙烯酸甲酯 力学性能 |
Mechanical properties of PMMA/PEG-TPE semi-interpenetrating network polymer |
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| JIAN Xiao-xia,XIAO Le-qin,ZHOU Wei-liang,XU Fu-ming.Mechanical properties of PMMA/PEG-TPE semi-interpenetrating network polymer[J].Journal of Solid Rocket Technology,2008,31(4). |
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| Authors: | JIAN Xiao-xia XIAO Le-qin ZHOU Wei-liang XU Fu-ming |
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| Abstract: | In order to improve mechanical properties of polyethylene glycol thermoplastic elastomer(PEG-TPE),polymethyl methyacrylate(PMMA) was introduced into PEG-TPE network to synthesize semi-interpenetrating polymer networks(S-IPN).The change laws of glass transition temperature,loss angle tangent and storage modulus of PMMA/PEG-TPE samples were investigated by means of dynamic thermo-mechanical analysis(DMA).The results show that PMMA can make tensile strength of S-IPN improved significantly,i.e.from 3.75 MPa(PEG-TPE) to 26.3 MPa(PMMA/PEG-TPE(70/30)),but the elongation-to-break of S-IPN decreass greatly. |
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| Keywords: | semi-interpenetrating network polymer PEG thermoplastic elastomer polymethyl methyacrylate mechanical property |
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