Ziegler-Natta催化体系引发丙烯聚合的优化工艺研究

doi:10.16039/j.cnki.cn22-1249.2019.11.014

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摘要

采用一步法制备工艺以无水氯化镁为载体，考察了酯镁比、醇镁比、镁前驱体组成、搅拌及升温速率对Ziegler-Natta催化剂活性、聚丙烯（PP）堆密度及等规度的影响，考察了催化剂表面结构，优化了Ziegler-Natta催化剂体系。结果表明：酯镁比为0.255、醇镁比为2.6、前驱体中加入适量的乙氧基镁,升温时间4h，聚丙烯综合性能最佳。

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	宋岩
	周琳媛
	王芳菲
	刘闯

关键词: 一步法 Ziegler-Natta催化剂聚丙烯(PP) 性能最佳

Abstract:

One-step preparation process using anhydrous magnesium chloride as carrier.The effects of ester-magnesium ratio, alcohol magnesium ratio, magnesium precursor composition, stirring and heating rate on Ziegler-Natta catalyst activity, polypropylene (PP) bulk density and isotacticity were investigated.The surface structure of the catalyst was investigated. The Ziegler-Natta catalyst system was optimized.The results showed that the comprehensive performance of Polypropylene was the best when the ratio of ester to magnesium was 0.255, the ratio of alcohol to magnesium was 2.6, the proper amount of ethoxy magnesium was added to the precursor,and the heating time was 4 h.

Key words: One-step method Ziegler-Natta catalyst Polypropylene (PP) Best performance

出版日期: 2019-11-25 发布日期: 2019-11-25 整期出版日期: 2019-11-25

ZTFLH:

TB324

引用本文:

宋岩, 周琳媛, 王芳菲, 刘闯. Ziegler-Natta催化体系引发丙烯聚合的优化工艺研究 [J]. 吉林化工学院学报, 2019, 36(11): 58-62.
Song Yan, Zhou Linyuan, Wang Fangfei, Liu Chuang. Study on Optimization Process of Propylene Polymerization Initiated by Ziegler-Natta Catalyst System . Journal of Jilin Institute of Chemical Technology, 2019, 36(11): 58-62.

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http://xuebao.jlict.edu.cn/CN/10.16039/j.cnki.cn22-1249.2019.11.014 或 http://xuebao.jlict.edu.cn/CN/Y2019/V36/I11/58