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电热双敏型形状记忆石墨烯/聚氨酯/环氧树脂复合材料的制备及其性能

  • 焦红倩 酒红芳 常建霞 张少梅 赵亚男
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  • 中北大学理学院 中北大学理学院 中北大学理学院 中北大学理学院 中北大学理学院

收稿日期: 2015-09-30

  修回日期: 2015-11-16

  网络出版日期: 2016-12-22

Preparation and Properties of Thermoelectric Responsive Graphene/Polyurethane/Epoxy Resin Composite with Shape Memory

  • JIAO Hong-qian JIU Hong-fang CHANG Jian-xia ZHANG Shao-mei ZHAO Ya-nan
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  • College of science,North university of China College of science,North university of China College of science,North university of China College of science,North university of China College of science,North university of China

Received date: 2015-09-30

  Revised date: 2015-11-16

  Online published: 2016-12-22

摘要

以自制聚氨酯预聚体与环氧树脂复合形成互穿聚合物网络结构,采用共混方法添加自制高导电性石墨烯,制备了电热双敏型形状记忆复合材料,研究了其性能. 结果表明,以20%(w)聚氨酯/环氧树脂为基体所制1.0%(w)石墨烯/聚氨酯/环氧树脂复合材料的分散性良好,玻璃化转变温度稍低于纯环氧树脂,拉伸强度是纯环氧树脂的93%,导电性达3.58′10-4 S/m,固定率为95.5%,回复率为97.5%,循环5次后固定率不低于95%.

本文引用格式

焦红倩 酒红芳 常建霞 张少梅 赵亚男 . 电热双敏型形状记忆石墨烯/聚氨酯/环氧树脂复合材料的制备及其性能[J]. 过程工程学报, 2016 , 16(1) : 164 -169 . DOI: 10.12034/j.issn.1009-606X.215339

Abstract

Polyurethane (PU) prepolymer/epoxy resin (EP) composite was synthesized by interpenetrating polymer, and mixing homemade high conductivity grapheme (G), the thermoelectric responsive composite of shape memory graphene/polyurethane/epoxy resin (G-PU-EP) was prepared. The results show that the dispersibility of G-PU-EP with addition of 1.0%(w) grapheme in 20%(w) PU-EP is good, its glass-transition temperature Tg slightly lower than that of pure epoxy resin, its tensile strength 93% of pure epoxy resin and its electrical conductivity 3.58′10-4 S/m, its shape fixing rate (Rf) and shape recovery rate (Rr) are 95.5% and 97.5%, respectively. In addition, Rf remains over 95% after recycling of 5 times.
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