环氧树脂基形状记忆复合材料的制备与性能

Fabrication and Performance of Shape Memory Epoxy Resin Composite

以自制的形状记忆环氧树脂为基体,CCF300级碳纤维U-3160织物为增强材料,采用真空袋成型工艺制备形状记忆复合材料,分析碳纤维含量对复合材料的形状记忆性能的影响.结果表明,当碳纤维含量为0％ ～ 50％时,随着增强体碳纤维含量的增加,复合材料的形状固定率由98％降至91％,形状回复率也由98％降至91％.在有限次的循环实验中,循环次数对形状固定率和形状回复率没有明显的影响.

The carbon fiber reinforced epoxy resin composites with shape memory effect were manufactured via vacuum-bag curing process.The deformation-recovery shape memory tests of composite were performed above Tg of the resin matrix.The results show that the shape fixation rate of the composite decreases from 98％ to 91％ and the recovery rate decreases from 98％ to 91％ while the mass fraction of carbon fiber increases from 0％ to 50％.The shape fixation rate and recovery rate of the composite does not show any obvious and regular changes in the limited cyclic test.