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文章利用Polyflow软件,对密炼机叠片式转子和新型高拉伸腰鼓形转子的混炼流场特性进行了数值模拟。采用示踪粒子法(PTA)与实验验证的方法探讨了不同构型转子的分散与分布混合性能,并对所制备CF/PVDF复合材料的力学性能、CF残余长度及分布进行了表征。研究表明:腰鼓形转子混炼流场中较弱的剪切作用赋予复合材料中较长的碳纤残余长度,其较强的拉伸流动特性使碳纤在基体中得到良好分布,使CF对PVDF的增强作用更加显著。
In this paper, Polyflow software is used to simulate the mixing flow field of the mixer laminator rotor and the new high-stretch drum rotor. The dispersion and distribution of different configurations of rotors were investigated by tracing particle method (PTA) and experimental verification. The mechanical properties, CF residual length and distribution of the prepared CF / PVDF composites were characterized. The results show that the weaker shearing effect in the mixer drum flow gives the longer residual carbon fiber length in the composites, and the stronger stretching and flow characteristics make the carbon fiber distribute well in the matrix, Enhance the role of more significant.