摘要
在25～55℃的形变温度内，通过拉伸-回复测试和弯曲-回复测试研究了无定形PPC的形状记忆性能。结果表明：PPC在25～55℃的形变／回复温度下弯曲-回复和在35～55℃的拉伸-回复的形状回复率均超过95％，且在25～35℃内弯曲．回复测试显示了良好的温度记忆效应。此外，在35℃下，弯曲-回复和拉伸-回复的形状回复率在9次循环测试中都保持95％以上。研究结果表明：PPC可以作为1种优良的形状记忆高分子材料。
Shape memory properties of amorphous PPC were studied by both bending-recovery and stretching-recovery tests at deformation temperature from 25 - 55 ℃. The experiment results showed that the shape recovery ratios were higher than 95 % for bending-recovery test under 25 ~ 55 ℃ and stretching-recovery test under 35 - 55 ℃. The good temperature memory effect were also showed by bending-recovery when deformed at 25 - 35 ℃. When the sample were deformed at 35 ℃ ,it showed stable shape recovery ratios above 95 % in nine cycles of shape memory tests, for both bending and stretching recovery examination. So PPC could be an excellent shape memory polymer.
出处
《塑料》
CAS
CSCD
北大核心
2014年第3期25-27,共3页
Plastics
基金
国家自然科学基金(CNSF 51073163)
关键词
聚碳酸亚丙酯
形变温度
弯曲测试
拉伸测试
温度记忆效应
形状记忆性能
polypropylene carbonate
deformation temperature
bending test
tensile test
temperature memory effect
shapememory properties
