A METHOD FOR PREPARING OF POLYOLEFIN FILM

摘要

The present invention relates to a manufacturing method of a polyolefin-based film comprising a fluoropolymer layer inside the film. More particularly, the manufacturing method of a polyolefin-based film comprises the following steps of: a) forming a fluoropolymer layer by repeatedly performing atomic layer deposition process which introduces a precursor including a fluoropolymer to a polyolefin-based resin; and b) stacking polyolefin-based resin on the fluoropolymer layer formed in step a), and heat-sealing the same by elevating temperature and applying pressure. The polyolefin-based film has excellent moldability, insulating properties, and electrolyte resistance while suppressing generation of cracks in an adhesion layer under physical, chemical impact, or stresses from the outside.