| 氢化环氧树脂体系形状记忆效应的研究 |
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| 引用本文： | 魏堃,唐玉生,朱光明,李喜民,门倩妮,师瑞峰.氢化环氧树脂体系形状记忆效应的研究[J].航空材料学报,2012,32(3):57-62. |
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| 作者姓名： | 魏堃 唐玉生 朱光明 李喜民 门倩妮 师瑞峰 |
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| 作者单位： | 1. 西北工业大学理学院应用化学系,西安,710129
2. 中国航空工业集团公司第一飞机设计研究院,西安,710089 |
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| 基金项目： | 西北工业大学基础研究基金，西北工业大学博士论文创新基金资助项目 |
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| 摘 要： | 将顺丁烯二酸酐(MA)与不同比例的氢化环氧树脂、聚丙二醇二缩水甘油醚(PPGDGE)共混,经完全固化制备出一种新型的形状记忆氢化环氧树脂体系。利用DMA,DSC、弯曲测试和U型形状记忆测试系统研究了该固化体系的动态力学性能、力学性能和形状记忆性能,结果表明:该固化体系交联点之间存在较长的柔性链段,导致部分结晶现象的出现;固化体系的玻璃化转变温度(Tg)最高达124℃,并且Tg随PPGDGE含量的增加而线性降低;该形状记忆氢化环氧固化体系具有优良的形状记忆性能,经过5次形状记忆测试,变形的试样均能在数分钟内完全恢复到变形前的状态,形变恢复率达100%。
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| 关 键 词： | 氢化环氧 形状记忆 玻璃化转变温度 结晶 |
Studies on Shape Memory Hydro-epoxy System |
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| WEI Kun
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TANG Yu-sheng
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ZHU Guang-ming
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LI Xi-min
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MEN Qian-ni
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SHI Rui-feng.Studies on Shape Memory Hydro-epoxy System[J].Journal of Aeronautical Materials,2012,32(3):57-62. |
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| Authors: | WEI Kun TANG Yu-sheng ZHU Guang-ming LI Xi-min MEN Qian-ni SHI Rui-feng |
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| Institution: | 1(1.Department of Applied Chemistry,Northwestern Polytechnical University,Xi′an 710129,china;2.First Aircraft Institute of Aviation Industry Corporation of China,Xi′an 710089,China) |
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| Abstract: | A novel shape memory hydro-epoxy resin system was prepared by hydro-epoxy,poly(propylene glycol) diglycidyl ether(PPGDGE) and maleic anhydride(MA).DSC,DMA,bend test and U type shape memory test were used to systematically investigate the thermo-mechanical,mechanical and shape memory properties of these materials.These results indicate that the segment crystallization might occur,due to the existence of long flexible segments between the crosslink points in the hydro-epoxy network.The glass transition temperature(Tg) of polymer decreases linearly with increasing of PPGDGE content,the highest Tg can reach to 124℃.The novel shape memory hydro-epoxy resin has good shape memory performance.The recovery time doesn′t change dramatically in five cycles,full recovery can be observed only in several minutes,the shape recovery ratio(Rr) is almost 100%. |
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| Keywords: | hydro-epoxy shape memory polymer glass transition temperature crystallization |
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