Crystallinity and impact strength improvement of wood-polylactic acid biocomposites produced by rotational and compression molding

Polylactic acid is one of the most used biopolymers due to its overall properties and biodegradability. Nevertheless, polylactic has important drawbacks such as brittleness, low thermal stability, higher cost than commodity polymers. In order overcome those disadvantages without compromising biodegradability, addition wood particles annealing on crystallinity impact strength wood-polylactic biocomposites were studied. The samples prepared by compression rotational molding using two different particles: white ash tzalam. results showed that at 100 °C, 40 minutes, increased up 60 % also improved stability determined via dynamic mechanical analysis. specimens not exposed exhibited storage modulus loss above which mostly disappeared with treatment. Furthermore, was substantially Additionally, accelerated weathering tests thermally annealed had better dimensional growing their potential applications over a wider range conditions