The Melt Flow Rate(MFR) of sevsral kinds polythylene(PE)were measured. The viscosity(η_a)was calculated by means of flow characteristic in high molecular polymer. Poiseuille' s equation and MFR. According to the high molecular theory, the molecular weight and molecular weight distribution can be showed by MFR. The effect of MFR on the proeassing property in PE resin was described by the dependence from among the parameters.
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