DCP对线型低密度聚乙烯/废胶粉复合材料的改性研究  

Modification of LLDPE/scrap rubber powder composites with DCP

作　　者：王勋林[1] 孙富真 

机构地区：[1]青岛科技大学橡塑材料教育部重点实验室,山东青岛266042

出　　处：《弹性体》2010年第6期53-55,共3页China Elastomerics

基　　金：青岛科技大学博士基金;国家自然科学基金资助项目(50873049)

摘　　要：研究了改性剂过氧化二异丙苯(DCP)对线型低密度聚乙烯(LLDPE)与回收胶粉的增容作用,探讨了其用量对共混体系性能的影响。结果表明,DCP对LLDPE/回收胶粉复合材料的性能影响非常明显,拉伸强度、断裂伸长率随DCP用量的增加先升高后降低,在DCP用量为0.10～0.15 phr时最高;撕裂强度、弯曲强度随DCP用量的增加而变化不太明显。材料的流动性随DCP的加入而略有降低,当DCP的用量为0.15 phr时,材料的熔体流动速率降到最低,之后随DCP用量的增加而变化不大。Modifier DCP was used in order to improve the properties of LLDPE/scrap rubber powder composites in this article.The results indicated that,the tensile strength and elongation at break were increased at first and then decreased with the DCP content increased.The tensile strength of composites was the highest when the DCP content was 0.1~0.2 phr.The tear strength and flexural strength of composites were increased along with DCP content increasing.The melt flow index of composites was decreased along with DCP content increasing.

关 键 词：线型低密度聚乙烯 废胶粉 复合材料 改性研究 composites 过氧化二异丙苯 熔体流动速率 断裂伸长率 LLDPE 性能影响 弯曲强度 撕裂强度 拉伸强度 回收 共混体系 流动性 升高 结果 

分 类 号：TQ334[化学工程—橡胶工业]