Review on the Development of Ethylene Polymerization Catalysts
Polyethylene has light weight,tasteless,non-toxic,excellent moisture resistance and heat resistance,etc.,and is widely used in injection molding,pipe,plate,film.The development of high-performance new products of polyethylene materials is highly dependent on the research of new catalysts for ethylene polymerization,so the design of ethylene polymerization catalysts has been the focus of research at home and abroad.In this paper,the research progress of polyethylene catalysts in different periods is reviewed,mainly from five aspects:chromium-based,Ziegler-Natta,metallocene,non-metallocene and composite metal catalyst.
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