超低密度聚乙烯的开发及应用  

Development and application of very low density polyethylene

作　　者：王晓飞 

机构地区：[1]中国石油化工股份有限公司天津分公司,天津市300271

出　　处：《合成树脂及塑料》2014年第6期40-43,共4页China Synthetic Resin and Plastics

摘　　要：对在线型低密度聚乙烯(LLDPE)装置上开发生产的超低密度聚乙烯TJVL-1210的工艺参数、生产切换过程以及产品性能进行了分析。TJVL-1210采用两种α-烯烃与乙烯共聚合,使LLDPE密度从0.920 0 g/cm3降至0.912 0 g/cm3,突破了气相流化床反应器的生产技术瓶颈。TJVL-1210可应用于聚丙烯改性、热收缩膜、冷冻包装膜等领域,能够取代部分市场上的茂金属聚乙烯和聚烯烃弹性体等高端树脂。The author analyzed the process parameters, production transition process and product properties of the very low density polyethylene（VLDPE） TJVL-1210 in a linear low density polyethylene （LLDPE） plant. TJVL-1210 was produced by ternary copolymerization of two kinds of alpha alkene and ethylene, which reduced the density of LLDPE from 0.920 0 g/cm3 to 0.912 0 g/cm3. The technology bottleneck of the gas phase fluidized bed reactor was broken through. TJVL-1210 could be applied to modification of polypropylene, heat shrinkage film, frozen packaging film, etc. and replace part of high-end resin products in current market, such as metallocene polyethylene and polyolefin elastomer.

关 键 词：超低密度聚乙烯 三元共聚合 产品改性 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]