高效载体催化剂下改性HDPE的合成  

Synthesis of Modified HDPE by Supported High Efficency Ziegler-Natta Catalyst

作　　者：陈辉[1] 王建国[1] 张学全[1] 黄葆同[1] 

机构地区：[1]中科院长春应用化学研究所,长春130022

出　　处：《合成树脂及塑料》1996年第2期13-15,共3页China Synthetic Resin and Plastics

摘　　要：研究了TiCl_4/SiO_2—MgCl_2载体高效催化剂作用下的乙烯/己烯共聚,发现共聚合的催化效率高于乙烯均聚,从非均相Ziegler—Natta催化聚合的非稳态扩散动力学观点解释了这一现象。研究了所合成的改性HDPE范围的共聚物样品的热性能和拉伸性能,结果表明其性能与商品牌号样品性能相近。Copolymerization of ethylene/1 -hexene under a supported Ziegler-Natta catalyst has been studied. It has been found that the catalyst efficiency in copolymerization is higher than that in ethylene homopolymerization. This phenomenon has been explained in the view of unsteady diffusion kinetics of heterogeneous Ziegler-Natta catalyst. The thermal properties and tensile strength of the copolymers as synthesized have been analyzed and proved to be similar with those of commercial products of modified HDPE.

关 键 词：催化剂 共聚 高密度聚乙烯 聚乙烯 改性 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]