Effect of ethylene prepolymerization in C2H4/H-2 atmosphere with Ti-Mg catalyse on gas-phase ethylene polymerization

被引：0

作者：

Li, Y ^{[1
]}

Lin, SA ^{[1
]}

机构：

[1] ZHONGSHAN UNIV, INST POLYMER SCI, ZHONGSHAN, PEOPLES R CHINA

来源：

CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE | 1996年 / 17卷 / 07期

关键词：

Ziegler-Natta catalyst; prepolymerized catalyst; gas phase ethylene polymerization;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Ti-Mg catalyst treated by novel prepolymerization in C2H4/H-2 atmosphere shows a high activity and non-decaying kinetic profiles in gas-phase ethylene polymerization. The prepolymerization drastically reduces the initial polymerization rate and increases the bulk density(BD) of the resulting polymer product, exhibiting a similarity to the prepolymerization in C2H2/N-2 atmosphere. Characterization of the resulting polymer particle by SEM demonstrates bound agglomerates of fine secondary polymer globules for the polymer surface, which could be effective for increasing ED of the product.

引用

页码：1154 / 1156

页数：3