利用粉体助剂制备高抗冲聚丙烯的表征  

Characterization of High Impact Polypropylene Prepared by Powder Additive

作　　者：柴子斌[1] 路荣海[2] 徐宏彬[1] 笪文忠[1] 

机构地区：[1]中国石化扬子石油化工有限公司南京研究院,江苏南京210048 [2]中国石油天然气股份有限公司东北销售分公司,辽宁沈阳110013

出　　处：《现代塑料加工应用》2013年第2期15-17,共3页Modern Plastics Processing and Applications

摘　　要：利用粉体助剂的特殊表观性能,将其引入到丙烯聚合反应体系,显著提高了高抗冲聚丙烯颗粒的流动性,得到了高抗冲聚丙烯颗粒,对所得产品进行表征。结果发现,颗粒表面均匀地分布着粉体助剂,产品乙烯质量分数可达22.10%,橡胶相含量可达33.1%,简支梁低温冲击强度为14.10 kJ/m^2同时能保持较好的刚性。利用^(13)CNMR对产品进行分析,明确了所得产品的序列结构。Powder additive was introduced into polymerization system. The flowability of high impact polypropylene particles could be highly improved by the apparent properties of powder addi- tive. The results show that powder additive evenly distributes on the surface of the particles, and the mass fraction of ethylene reaches 22.10%, the content of EPR reaches 33.1%, charpy im- pact strength is 14. 10 kJ/m2, meanwhile the products keep good rigid performances. The molec- ular sequence structures of products were also studied by means of 13CNMR.

关 键 词：抗冲聚丙烯 乙丙橡胶 粉体助剂 流动性聚合 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]