EVA/EVM发泡材料的制备和性能研究  

Preparation and Characterization of EVA/EVM Foamed Composite Materials

作　　者：熊祖江[1,2] 王旭[1] 钟宁庆[1] 

机构地区：[1]中国皮革和制鞋工业研究院,北京100016 [2]中国科学院化学研究所工程塑料院重点实验室,北京100190

出　　处：《中国皮革》2014年第24期108-111,117,共5页China Leather

基　　金：国家自然科学基金项目(项目编号:21476253);中国皮革和制鞋工业研究院项目(项目编号:2013A06);国家科技支撑计划项目(项目编号:2014BAE02B00;课题编号:2014BAE02B02)

摘　　要：以具有不同乙酸乙烯酯(VA)含量的乙烯-乙酸乙烯酯树脂(EVA)和橡胶(EVM)为主基体、1,4-双叔丁基过氧异丙基苯(BIPB)为交联剂、偶氮二甲酰胺(AC)为发泡剂,通过模压法制备了EVA/EVM复合发泡材料,系统研究了EVM含量对EVA复合发泡材料硫化发泡性能、力学和减震性能的影响。结果表明,随着EVM含量的增加,复合材料发泡倍率增加,发泡材料密度和泡孔密度以及冲击回弹率和压缩永久变形率降低,材料的减震和压缩性能得到了较大的改善,但是复合材料的力学性能降低,正硫化时间延长。EVA/EVM foamed composite materials were prepared by the method of compression molding, with ethylenevinyl acetate copolymer resin（EVA） and rubber（EVM） as matrix, BIPB as crosslinker and AC as foamer. The effects of EVM content on the properties of vulcanization and foam, mechanical and compression performance of EVA/EVM foamed composite materials were systematically investigated. The results showed that the addition of EVM can improve foaming ratio, and decrease the bulk density, cell density, compression permanent distortion and impact resilience, which mean that the shock absorption and compression properties of composites are improved, although the tensile strength and tear strength decreased, and the vulcanizing time was prolonged.

关 键 词：乙烯-乙酸乙烯酯树脂 乙烯-乙酸乙烯酯橡胶 复合发泡材料 减震性能 

分 类 号：TQ328[化学工程—合成树脂塑料工业]