Poly(lactic acid) resin composition and molded product comprising same

A polylactic acid resin composition comprising:

• a polylactic acid resin which includes a hard segment including a polylactic acid repeating unit of the following Formula 1, and a soft segment including a polyurethane polyol repeating unit in which polyether-based polyol repeating units of the following Formula 2 are linearly linked via a urethane bond;
• a poly-D-lactic acid (PDLA) resin as a nucleating agent;
• and
• talc:
• wherein, in Formula 1, n is an integer of 700 to 5,000;
• and
• in Formula 2, A is a linear or branched alkylene group having 2 to 5 carbon atoms, and m is an integer of 10 to 100;
• wherein the polylactic acid resin composition has a heat deformation temperature (HDT) of 100° C. or more;
• and
• wherein the polylactic acid resin is a block copolymer in which a terminal carboxyl group of the polylactic acid repeating unit included in the hard segment and a terminal hydroxyl group of the polyurethane polyol repeating unit are linked via an ester bond.