Manufacturing method of porous composite film

摘要

The instant disclosure relates to a manufacturing method of a porous composite film. The manufacturing method includes processing a first porous film and a second porous film and includes the following steps: providing a pressing unit, a film-shaping unit, and a cooling unit; intersecting the first and second porous films at an angle; stacking the first and second porous films in forming a half-finished porous composite film; pressing the half-finished porous composite film by the pressing unit at a temperature T1 and under a tension S1; relieving the pressing force against the half-finished porous composite film thermally by the film-shaping unit at a temperature T2; and maintaining the half-finished porous composite film at a pre-determined tension by the cooling unit at a temperature T3.

主权项

1. A manufacturing method for a porous composite film having a pre-determined tension, by processing a first porous film and a second porous film, with the first porous film defining and being disposed along a first stretching direction, and the second porous film defining and being disposed along a second stretching direction, comprising the steps of:
providing a pressing unit, a film-shaping unit, and a cooling unit; arranging the first and the second porous films in a manner that the first stretching direction and the second stretching direction intersect at a predetermined angle; stacking the first porous film and the second porous film to form a half-finished porous composite film; pressing the half-finished porous composite film by the pressing unit at a temperature T1 under a tension S1; shaping the half-finished porous composite film by the film-shaping unit at a temperature T2 for thermally relieving the pressing force against the half-finished porous composite film; maintaining the half-finished porous composite film at a pre-determined tension S3 by the cooling unit at a temperature T3, wherein T3 satisfying the following condition:T⁢⁢1+T⁢⁢2+T⁢⁢3100*W⁢⁢1=1,wherein⁢⁢0.2