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发明授权
CN105264006B 具有高机械性能的聚乙烯组合物 有权

具有高机械性能的聚乙烯组合物
摘要：
公开了一种具有改进的抗环境应力开裂性(FNCT)和抗冲击性(Charpy)间平衡的聚乙烯组合物，特别适合用于制备管材，所述组合物具有以下特征：1)密度是0.945-0.955g/cm3；2)MIF/MIP比是从大于30到45；3)剪切诱导结晶指数SIC是1.0-2.5；4)长链支化指数等于或大于0.85。
摘要（英）：

Polyethylene composition with improved balance of environmental stress cracking resistance (FNCT) and impact resistance (Charpy), particularly suited for preparing pipes, said composition having the following features: 1) density from 0.945 to 0.955 g/cm 3 ; 2) ratio MIF/MIP from more than 30 to 45; 3) Shear-Induced Crystallization Index SIC from 1.0 to 2.5; 4) Long Chain Branching index equal to or greater than 0.85.

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