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  

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

作　　者：焦红倩 酒红芳[1] 常建霞 张少梅[1] 赵亚男[1] 

机构地区：[1]中北大学理学院,山西太原030051

出　　处：《过程工程学报》2016年第1期164-169,共6页The Chinese Journal of Process Engineering

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%(?)聚氨酯/环氧树脂为基体所制1.0%(?)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%.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%（ω） grapheme in 20%（ω） 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.

关 键 词：聚氨酯 环氧树脂 石墨烯 电热复合材料 形状记忆 

分 类 号：TQ322.4[化学工程—合成树脂塑料工业]