石油化工2017，Vol.46Issue(6)：691-694,4.DOI:10.3969/j.issn.1000-8144.2017.06.006
复合催化剂制备宽/双峰相对分子质量分布聚乙烯
Mixed catalyst for producing broad/bimodal relative molecular mass polyethylene
崔楠楠 1王洪涛 1周俊领1
作者信息
- 1. 中国石化北京化工研究院,北京100013
- 折叠
摘要
Abstract
A kind of mixed catalyst was prepared through blending chromium catalyst with titanium catalyst.Polymerization performances of three different catalysts,including activity,bulk density,molecular weight distribution and particle morphology of polyethylene,were discussed.The results showed that the broad/bimodal distribution polyethylene was obtained by using the mixed catalyst in single reactor.Compared with chromium catalyst or titanium catalyst,bulk density of polymer obtained with the mixed catalyst was better,average particle size was thinner and its particle size distribution was narrower.The fluidity of polymer lied between the polymer of chromium catalyst and the polymer of titanium catalyst.关键词
乙烯聚合/催化剂/聚乙烯/双峰相对分子质量分布Key words
ethylene polymerization/catalyst/polyethylene/bimodal relative molecular mass distribution分类
化学化工引用本文复制引用
崔楠楠,王洪涛,周俊领..复合催化剂制备宽/双峰相对分子质量分布聚乙烯[J].石油化工,2017,46(6):691-694,4.
