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采用不同比例的纳米石墨粉与氢化环氧树脂(H-EP)共混,并与一定比例的聚丙二醇二缩水甘油醚(PPGDGE)和异佛尔酮二胺(IPDA)完全固化,制备出一种新型的形状记忆复合材料。研究结果表明:该复合材料的弯曲强度和储能模量均随石墨含量增加呈先升后降态势,并且在w(纳米石墨粉)=10%(相对于总物料质量而言)时相对最大,但纳米石墨粉含量对复合材料的玻璃化转变温度(Tg)影响大不;当w(纳米石墨粉)≤10%时,其可均匀分散在H-EP基体中,相应的复合材料具有良好的形状记忆性能,其变形几乎可以完全回复。
Nanometer graphite powder with different proportions was blended with hydrogenated epoxy resin (H-EP) and fully cured with a certain proportion of polypropylene glycol diglycidyl ether (PPGDGE) and isophoronediamine (IPDA) to prepare a A new type of shape memory composite. The results show that the flexural strength and storage modulus of the composites increase first and then decrease with the increase of graphite content, and the relative maximum at w (nano-graphite) = 10% (relative to the total mass) , But the content of nano-graphite had a great influence on the glass transition temperature (Tg) of the composites. When w (nano-graphite) was less than 10%, it could be dispersed homogeneously in the matrix of H-EP and the corresponding composites had good The shape memory performance, its deformation can be almost completely restored.