光致弯曲聚合物的材料特性测试Material characteristics of photo-induced bending polymer
陈茂林,许溱,朱玉田,刘钊,俞燕蕾
摘要(Abstract):
一种具有双向形变记忆功能的光致弯曲聚合物材料,在光驱动型执行器中应用潜力较大。材料的力学性能及光致弯曲特性,是执行器结构设计和分析的必要依据。通过拉伸实验,了解到材料具有线弹性材料类似的力学性能,并得到了其弹性模量。通过对材料光致弯曲效应的分析,推导出光致弯曲曲率的表达式。利用该公式,对光致弯曲实验观测到的数据进行非线性拟合,得到材料的光致弯曲特性参数。计算曲率较好地符合了实验数据,证明了公式和参数的合理性。
关键词(KeyWords): 光致弯曲;曲率;弹性模量;非线性拟合
基金项目(Foundation): 上海市自然科学基金资助项目(09ZR1434200);; 国家“863”计划项目(2007AA03z105)
作者(Author): 陈茂林,许溱,朱玉田,刘钊,俞燕蕾
DOI: 10.13289/j.issn.1009-6264.2012.03.005
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