现代化工

现代化工 ›› 2024, Vol. 44 ›› Issue (S1) : 26-29. DOI: 10.16606/j.cnki.issn0253-4320.2024.S1.006

技术进展

聚乙烯催化剂的研究进展

颜子龙

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Advances in catalysts for polyethylene

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摘要

聚乙烯根据聚合方法、分子量大小、密度等参数可分为LDPE、LLDPE、HDPE、UHMWPE。综述了聚乙烯催化剂的发展历程,重点介绍齐格勒-纳塔催化剂、茂金属催化剂、后过渡金属催化剂和铬系催化剂的研究进展。

Abstract

According to polymerization method,molecular weight and density,polyethylene can be classified into LDPE,LLDPE,HDPE,UHMWPE,etc.The development history of polyethylene catalysts is reviewed,with emphasis on the research progress of Ziegler-Natta catalysts,metallocene catalysts,late transition metal catalysts and chromium-based catalysts.