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 draftratio.
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。
2
When ratio of draft tube diameter to reactor diameter was 0.5, a maximum in solid loading appeared.