可逆感温变色绝缘材料的制备及其性能研究  

Preparation and Properties of Reversible Thermochromism Insulating Materials

作　　者：水方 刘海[1] 文胜[1] 龚春丽[1] 郑根稳[1] 

机构地区：[1]湖北工程学院化学与材料科学学院,湖北孝感432000

出　　处：《塑料工业》2017年第2期29-32,共4页China Plastics Industry

基　　金：湖北省自然科学基金项目(2014CFB580)

摘　　要：采用两步法制备了可逆感温变色绝缘材料,探讨了乙烯-辛烯共聚物(POE)/三元乙丙橡胶(EPDM)比例以及过氧化二异丙苯(DCP)的添加量对绝缘材料可逆变色性能、力学性能、硬度和电学性能的影响。结果表明,添加质量分数为1%的感温变色粉所制备的绝缘材料在75℃时均可实现由黄色到白色的反复可逆变色。绝缘材料的硬度随EPDM含量增加而下降,表面电阻率和体积电阻率随DCP含量增加而上升,当POE/EPDM比例为70/30及DCP质量分数为2%时,绝缘材料的综合力学性能最佳。In this work, the reversible thermochromism insulating materials were prepared by a two-step method. The effect of the ratio of polyethylene-octene elastomer to ethylene-propylene-diene monomer （EPDM） rubber and dicumyl peroxide （DCP） content on the color and mechanical and electrical properties and hardness of the materials were investigated. The results show that the prepared materials could change color from yenow to white at 75 ℃ reversibly. The surface resistivity and volume resistivity of the materials increase with increasing DCP content. The hardness of the materials decreases with the increase of EPDM content. The integrated performance of the materials achieves the optimum value when the ratio of POE/ EPDM is 70/30 and the DCP content is 2wt%.

关 键 词：乙烯-辛烯共聚物 三元乙丙橡胶 感温变色粉 可逆感温变色 动态硫化 

分 类 号：TB34[一般工业技术—材料科学与工程]