Flow and mechanical properties of polypropylene/low density polyethylene blends

作者: J.Z. Liang , C.Y. Tang , H.C. Man

DOI: 10.1016/S0924-0136(96)02511-3

关键词: Low-density polyethyleneFlow (psychology)Materials scienceComposite materialNeckingPolyethyleneUltimate tensile strengthMelt flow indexModulusPolypropylene

摘要: Abstract Two types of polypropylene (PP) different melt flow index (MFI) were blended with a low density polyethylene (LDPE) in screw injection machine, the and mechanical properties blends being investigated. For higher MFI PP (PPH), rate (MFR) blend maximum at blending ratio 50 , whilst for lower (PPL), MFR increased increasing wt.% LDPE. Basically, relationship between properties, such as tensile strength Young's modulus, composition was agreement logarithmic mixing rule. dependence necking behaviour versus ratios, some differences found PPH/LDPE PPL/PP blend.

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