Polylactic acid resin film

摘要

The present invention relates to a polylactic acid resin film which can be used to advantage for packaging and the like, since it exhibits various optimised properties such as outstanding flexibility and mechanical properties while at the same time exhibiting the inherent biodegradability of polylactic acids. The polylactic acid resin film comprises a polylactic acid resin comprising: a hard segment comprising a prescribed polylactic acid repeating unit; and a soft segment comprising a polyurethane polyol repeating unit in which predetermined polyether-based polyol repeating units are linearly coupled by means of urethane bonds, and, in the polylactic acid resin film, the length-direction and width-direction Young's modulus total is between 350 and 750 kgf/mm