聚乙烯觸媒與製程比較

Comparision of Polyethylene Catalysts and Production Technology

王伯萍(Bor-Ping Wang)

《化學》 57卷1期 (1999/03) Pp. 65-74

https://doi.org/10.6623/chem.1999009

摘要

聚乙烯(polyethylene)是今日社會中被廣泛應用於日常生活的塑膠材料之一。製造聚乙烯的技術很多，這些設備包含了傳統製造低密度聚乙烯(LDPE)的高溫高壓製成，製造線性低密度聚乙烯(LLDPE)和高密度聚乙烯(HDPE)的低氣壓相式(Gas phase)、液相式( Solution phase) 以及漿液式(Slurry phase)製程。本篇報導將涵蓋製程技術、反應機構(mechanism)、觸媒種類和產品應用的介紹。

關鍵字

聚乙烯 ； 觸媒 ； 單點觸媒 ； 聚合反應

並列摘要

After forty years of Ziegler and Natta's invention of transition metal catalyzed polymerization of α-olefins, we are witnessing the evolution of new generation of catalysts and polyolefin materials. In 1980's Professor Walter Kaminsky from University of Hamburg reported the use of a metallocene with methylaluminoxane, characterized reaction product of water and an aluminum alkyl, to form highly active and extremely long lived catalyst for ethylene polymerization. Since then, much effort has devoted to research in metallocene based polymerization systems. Several process utilizing metallocenes have been commercialized. As a result, polyolefin industries jumped into a new era. A general overview of commercial polyethylene technology, which covers catalysts and product ion process, are included.

並列關鍵字

Polyethylene ； Catalyst ； Single-Site/Metallocene ； polymerization reaction