摘要
研究了自制MgCl_2-BuOH/TiCl_4催化剂在不同条件下用于乙烯均聚合和共聚合的性能,考察了不同的氢气分压、铝钛摩尔比和共聚单体浓度对催化剂活性和聚合反应动力学的影响,测试了聚合产品的熔体流动速率、堆密度及拉伸性能等,表征了聚合产品的相对分子质量及其分布、分子链结构,得出了聚合条件对MgCl_2-BuOH/TiCl_4催化剂及其产品性能影响的一般规律。
The authors studied the performance of a home-made magnesium chloride （MgCl2）-butanol （BuOH）/titanium chloride（TiCl4） catalyst used for ethylene homoor eopolymerization under different reaction eonditions. The influences of hydrogen pressure, molar ratio of Al to Ti and comonomer concentration on catalyst activity and polymerization kinetics were examined. Melt flow rate, bulk density and tensile properties of polymerization product were tested, and relative molecular mass and its distribution and chain structure were characterized. The rules of the effects of polymerization conditions on MgCl2-BuOH/TiCl4 catalyst and the properties of the product were given in the paper.
出处
《合成树脂及塑料》
CAS
北大核心
2009年第6期11-13,26,共4页
China Synthetic Resin and Plastics
基金
中国石油天然气股份有限公司资助项目(0604A18-11)
关键词
乙烯聚合
钛/镁系催化剂
聚合条件
ethylene polymerization
magnesium chloride-butanol/titanium chloride
polymerization conditions
