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聚丙烯微孔薄膜的性能,具有孔隙率30—35%,平均孔径在200—800A,有效氮气透过率1—5×10-3ml/cm2每秒(在自然环境),它的拉伸强度在所有方向上都大于60Mpa,比较了通过双向拉伸高β晶含量和经过热定型微孔薄膜的性能。
Polypropylene microporous film properties, with a porosity of 30-35%, an average pore diameter of 200-800A, the effective nitrogen permeability of 1-5 × 10-3ml / cm2 per second (in the natural environment), its tensile strength Greater than 60 MPa in all directions, comparing the properties of high beta crystal content through biaxial stretching and heat set microporous films.