EVA交联发泡废弃物的机械力化学解交联调控及资源化利用  

Mechanochemical Decrosslinking Regulation and Control for Resource Application of the Crosslinked and Foamed EVA Waste Material

作　　者：张伟雄[1,2] 刘灿培[1] 王满凯[1] 曾双友[1] 林艺凤[1] 王志喜[1] 赖丽贞 颜小刚 

机构地区：[1]福建师范大学材料科学与工程学院,福建省高分子材料重点实验室,福建福州350117 [2]福建纳川管材科技股份有限公司,福建泉州362801

出　　处：《福建师范大学学报（自然科学版）》2014年第1期78-84,共7页Journal of Fujian Normal University：Natural Science Edition

基　　金：福建省自然科学基金资助项目(2012J01030);福建省大学生创新性实验计划项目(SJCSCY-2012010;cxxl-2013080)

摘　　要：在不同温度下经过不同时间,利用HAAKE流变仪Roller转子提供的机械能对乙烯与乙酸乙烯酯共聚物(EVA)的交联发泡废弃物料进行机械力化学解交联,形成塑性流的解交联产物.通过分析解交联产物的溶胶和凝胶量,并用扫描电镜表征解交联产物的表面形貌,得到解交联最适宜的时间和温度.解交联产物与纯EVA的共混物,再经过氧化二异丙苯产生的自由基引发交联,研究了其力学性能,获得最佳的共混配比,使交联发泡的EVA废弃物料资源化再生利用.Mechanochemical decrosslinking for the crosslinked and foamed ethylene-vinyl acetate copolymer （EVA） waste material is achieved by inputting mechanical energy originating from a pairs of Roller rotors in HAAKE rheometer at different temperature for a different long time, in which the waste material forms a decrosslinked product （PDEM）, a plastic flow material. The sol and gel contents of PDEM are analyzed. Scanning electron microscopy is used to characterize the morphology of PDEM. Mechanical properties of the blends of pure EVA with PDEM are measured after they are crosslinked by initiating with a radical initiator of dicumyl peroxide. The optimization of decrosslinking conditions and the best blending ratio are obtained so that the crosslinked and foamed EVA waste material is recycled and resource application.

关 键 词：乙烯与乙酸乙烯酯共聚物 机械力化学 解交联 资源化利用 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]