Poly (Lactic Acid) Resin Composition for Preparing Transparent and Impact-Resistant Article, Article Prepared Therefrom and Preparation Process Thereof

A poly(lactic acid) resin composition, comprising:

• (a) a poly(lactic acid) resin;
• and (b) a modifier which is in the form of nanoparticle aggregate with a particle size of less than 1000 nm and uniformly dispersed in the poly(lactic acid) resin, wherein the nanoparticle aggregate is obtained from the polycondensation of at least one metal/nonmetal alkoxide, at least one metal/nonmetal alkoxide having at least one functional group capable of reacting with the poly(lactic acid) resin, or a mixture thereof.

The composition according to claim 1, wherein the first catalyst is selected from the group consisting of H2SO4, HCl, toluene-4-sulfonic acid, methyl hexahydrophthalic anhydride (MHHPA), trifluoracetic acid (TFA), CH3COOH, and a mixture thereof.

The composition according to claim 1, wherein the nanoparticle aggregate is obtained from the gathering of a polymer of a mixture of at least one metal/nonmetal alkoxide and at least one metal/nonmetal alkoxide having at least one functional group capable of reacting with the poly(lactic acid) resin at a mixing ratio of 1:99-99:1.