炭黑用量对天然橡胶/反式聚异戊二烯形状记忆复合材料性能的影响  

Effect of carbon black amount on properties of natural rubber/trans-polyisoprene shape memory composites

作　　者：刘勋聪 王琦 吴昊 夏琳[1] LIU Xun-cong;WANG Qi;WU Hao;XIA Lin(School of Polymer Science and Engineering/Key Laboratory of Rubber-Plastics of Ministry of Education,Qingdao University of Science and Technology,Qingdao 266042,China)

机构地区：[1]青岛科技大学高分子科学与工程学院/橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《合成橡胶工业》2021年第5期384-387,共4页China Synthetic Rubber Industry

基　　金：国家自然科学基金青年科学基金资助项目(51303092);山东省自然科学基金资助项目(ZR 2019 MEM 016);山东省重大科技创新工程项目(2019 JZZY 020223)。

摘　　要：制备了以天然橡胶(NR)及反式聚异戊二烯(TPI)为基体材料的形状记忆复合材料,并考察了炭黑用量对复合材料硫化特性、物理机械性能、结晶性能及形状记忆性能的影响。结果表明,随着炭黑用量的增加,复合材料的物理机械性能显著提高,拉伸强度从17.2 MPa提高到23.0 MPa。炭黑的加入降低了复合材料中TPI相的结晶度,并使复合材料的形状固定率和形状回复率有所降低。Shape memory composites based on natural rubber(NR)and trans-polyisoprene(TPI)were prepared,and the effects of carbon black amount on the curing characteristics,physical and mechanical properties,crystallization properties and shape me-mory properties of the composites were investigated.The results showed that with the increase of carbon black amount,the physical and mechanical properties of the composites were significantly improved,and the tensile strength increased from 17.2 MPa to 23.0 MPa.The addition of carbon black reduced the crystallinity of TPI phase in the composites,and also reduced the shape fixation rate and shape recovery rate of the composites.

关 键 词：反式聚异戊二烯 天然橡胶 硫化特性 物理机械性能 形状记忆性能 

分 类 号：TQ333.3[化学工程—橡胶工业]