The use of three different heterogeneous Ziegler-Natta catalyst system,under appropriate polymerization conditions in the gas-phase pilot plant development of polyethylene stretch film resin.A catalyst for the production of resin preparation stretch film,film-forming process is stable and the apparent performance of the film haze,gloss,etc.have reached the level of domestic and foreign products.%利用三种不同的非均相的齐格勒-纳塔催化剂体系,在适当的聚合条件下,在气相法中试装置上进行聚乙烯拉伸缠绕膜树脂的开发。A催化剂生产的树脂制备缠绕膜时成膜工艺稳定,膜雾度、光泽度等表观性能都达到国内外产品水平。
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