MiniLab表征共混高聚物熔体相容性方法的探讨

Investigation of the Method for Characterization of the Miscibility in Molten Polymer Blends by MiniLab Micro Compounder and Rheometer

利用MiniLab微型混合流变仪测定的高聚物熔体平衡转矩-转速关系曲线探讨表征共混高聚物熔体相容性的方法,研究高密度聚乙烯(HDPE)和聚丙烯(PP)共混物熔体的相容性。结果表明:HDPE/PP共混物熔体是完全互容的。

The relationship between polymer melt steady-state torque and rotating speed, measured by MiniLab, was used to investigate the method for characterizing the miscibility of polymer blends in molten state. The high density polyethylene （HDPE） and polypropylene （PP） were selected as samples for this purpose. The results showed that HDPE and PP were miscible in molten state.