Fateme Barzegari - Iran Polymer and Petrochemical Institute Tehran, Iran
Jalil Morshedian - Iran Polymer and Petrochemical Institute Tehran, Iran
Mohammad Razavi-Nouri - Iran Polymer and Petrochemical Institute Tehran, Iran

Porous polypropylene films filled with mineral filler are commonly used in separation processes such as battery separators. Uniaxial stretching of precursor polypropylene films containing glass spheres consequences in porous polypropylene films. The pore size and shapes are affected by controlling the filler content and drawing ratio. The yielding behavior of porous polypropylene films prepared by hot stretching was analyzed by tensile testing.

membrane- porous- hot stretching- polypropylene- hollow glass bead