TPI形状记忆性能研究  

Study on shape memory properties of TPI

作　　者：徐福勇[1] 柏林 张合伟[1] 姚薇[1] 刘庆华 

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042 [2]建大橡胶(中国)有限公司,江苏昆山215333

出　　处：《橡胶工业》2010年第7期406-410,共5页China Rubber Industry

基　　金：国家科技型中小企业技术创新基金资助项目(07C26213711615)

摘　　要：研究硫黄用量对反式1,4-聚异戊二烯(TPI)硫化胶物理性能和热致形状记忆性能的影响以及TPI硫化胶的电致形状记忆性能。结果表明,随着硫黄用量的增大,TPI硫化胶化学交联密度和总交联密度增大,定伸应力和拉伸强度减小,拉断伸长率增大,热刺激响应回复温度降低,最终形变回复率增大,形变回复速率先增大后减小;TPI硫化胶具有良好的电致形状记忆性能,随着施加电压的增大,TPI硫化胶最终形变回复率增大,形变回复时间缩短。The influence of the addition level of sulfur on the physical properties and thermally induced shape memory property of trans-l,4-polyisoprene（TPI） vulcanizate,and the electro shape me- mory property of TPI vulcanizate were investigated. The results showed that, as the addition level of sulfur increased, the chemical crosslink density and total crosslink density of TPI vulcanizate in- creased,the modulus and tensile strength decreased, the elongation at break increased, the thermo-responsive temperature decreased, the final deformation recovery rate increased, and the deformation recovery speed increased at first and then decreased;TPI vulcanizate possessed good electro shape memory property, as the applied voltage increased, the final deformation recovery rate increased, and the deformation recovery time shortened.

关 键 词：反式1 4-聚异戊二烯 硫黄 形状记忆性能 

分 类 号：TQ330.7[化学工程—橡胶工业]