Biodegradable resin composition, biodegradable film using same, and preparation method therefor

Abstract

An embodiment relates to a biodegradable resin composition, a biodegradable film using same, and a preparation method therefor. The biodegradable resin composition comprises a polylactic acid (PLA) resin and a polyhydroxyalkanoate (PHA) resin, and the PHA resin comprises a first PHA resin and a second PHA resin, which contain different amounts of 3-hydroxyhexanoate (3HH) repeating units, and thus the biodegradability, elongation and strength of a biodegradable film can all be improved. Therefore, the biodegradable resin composition according to the embodiment can ensure sufficient elongation and strength to enable the manufacture of an oriented film while having excellent biodegradability and biocompatibility so as to be eco-friendly, and thus can be used, and exhibit excellent characteristics, in the manufacture of various products requiring formability, such as disposable envelopes or packaging material of food containers and the like.

Dependencies are inferred from the claim text.