LDPE/EVA/SEBS发泡材料的研究  

Study of LDPE/EVA/SEBS Foamed Plastics

作　　者：韩利志[1] 李礼[1] 郑红娟[1] 张爱民[1] 

机构地区：[1]高分子材料工程国家重点实验室四川大学高分子研究所,四川成都610065

出　　处：《塑料工业》2007年第8期18-21,共4页China Plastics Industry

摘　　要：将苯乙烯-乙烯/丁烯-苯乙烯共聚物(SEBS)应用于低密度聚乙烯(LDPE)/乙烯-醋酸乙烯共聚物(EVA)发泡材料中。讨论了SEBS用量、SEBS充油量对LDPE/EVA发泡材料性能的影响。并且讨论了发泡剂偶氮二甲酰胺(AC)、交联剂过氧化二异丙苯(DCP)、填料微细重质碳酸钙(CaCO3)用量对LDPE/EVA/SEBS发泡材料性能的影响。对发泡前样品,用溶剂将脆性断面的SEBS相区刻蚀掉,通过SEM对样品的观察发现,SEBS在树脂中分散比较均匀。通过SEM对发泡前样品脆性断面的观察发现,CaCO3在树脂中分散比较均匀。通过SEM对发泡样品的切断面观察发现,泡孔比较均匀。A foamed plastics product was prepared from SEBS, LDPE and EVA. The Effects of SEBS con- tent and the extender oil content of SEBS on the property of the foamed plastics LDPE/EVA were studied, and the effects of the contents of foaming agent AC, crosslinking agent DCP and filler CaCO3 on the property of the foamed plastics LDPE/EVA/SEBS were also studied. The SEBS domains of the brittle fractured surface of the sample were etched by means of solvent before the foaming. The results of the SEM showed the dispersion of SEBS in the resin was well, and the SEM micrograph of the brittle fractured surface of the sample showed CaCO3 was also well dis- persed in the resin, and the cells dimensions of the foamed plastics were homogeneous.

关 键 词：苯乙烯-乙烯/丁烯-苯乙烯共聚物 充油量 低密度聚乙烯 乙烯-醋酸乙烯共聚物 扫描电子显微 镜 发泡材料 

分 类 号：TQ328[化学工程—合成树脂塑料工业]