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发明公开
CN105524337A 一种聚乙烯组合物及其薄膜 有权 许可

一种聚乙烯组合物及其薄膜
摘要：
本发明提供了一种聚乙烯组合物及其薄膜。所述聚乙烯组合物含有由乙烯与α烯烃共聚而成的线性低密度聚乙烯，其中，所述聚乙烯组合物的重均分子量Mw为10万g/mol-18万g/mol，且Mw/Mn为4.0-8.5，Mz/Mw为4.0-6.5，Mz+1/Mw为4.5-12.5。将该聚乙烯组合物采用平膜拉伸法制备聚乙烯薄膜时，拉伸倍率大、成膜速率高，成膜性非常好。
摘要（英）：

The invention provides a polyethylene composition and a film thereof. The polyethylene composition contains linear low density polyethylene obtained by ethene-alpha olefin copolymerization. The polyethylene composition has weight-average molecular weight Mw of 100000-180000g/mol, a ratio of Mw/Mn is in a range of 4.0-8.5 and a ratio of Mz/Mw is in a range of 4.5-12.5. In polyethylene film preparation based on a flat membrane stretching method, the polyethylene composition has good stretching multiplying power, a high film forming rate and a good film forming ability.

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