The results show that the maximum porosity of the membrane with distributing uniformly pore diameter are increased with the lowering spinning temperature, and increasing melt draft ratio.
结果表明，聚丙烯熔体的温度较低、所受拉伸比较大，所形成的微孔膜孔径分布均匀、孔隙率较高。
When ratio of draft tube diameter to reactor diameter was 0.5, a maximum in solid loading appeared.
固体相含率先增加后减少，对固体相含率而言，当导流筒直径与反应器直径之比为0 5时，固体相含率最大；
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