反应挤出制备高抗冲聚丙烯的研究  

Preparation of High Impact Polypropylene by Reaction Extrusion

作　　者：胡国和 郑化安 牛韬 李应平 李国法 张小庆 

机构地区：[1]陕西煤业化工技术研究院有限责任公司,国家能源煤炭分质清洁转化重点实验室,陕西西安710065

出　　处：《塑料工业》2016年第5期129-132,共4页China Plastics Industry

摘　　要：采用反应挤出法制备高抗冲聚丙烯,通过过氧化物引发剂与交联剂对聚丙烯/聚乙烯进行交联改性。研究了引发剂、聚乙烯、交联剂用量对改性效果的影响,并对高抗冲聚丙烯进行DSC分析。结果表明,经过反应挤出交联改性后聚丙烯的简支梁缺口冲击强度是纯聚丙烯的5倍以上,聚丙烯结晶温度提高了近8℃。A high impact polypropylene was prepared by reaction extrusion with crosslinking modificationof peroxide initiator and crosslinking agent on polypropylene/polyethylene. The effects of the amount ofinitiator, polyethylene and crosslinking agent on the modification were studied, and differential scanningcalorimetry （DSC） for high impact polypropylene was also analyzed. It is found that the Charpy notchedimpact strength of the crosslinking modified polypropylene is over 5 times the raw, the crystallizationtemperature of polypropylene increases by 8 ℃ nearly.

关 键 词：反应挤出 高抗冲聚丙烯 交联 接枝 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]