Control of Biodegradability Under Composting Conditions and Physical Performance of Poly (Lactic Acid) Based Materials Modified with Phenolic-Free Rosin Resin

Abstract Biodegradable materials based on poly (lactic acid) (PLA) and a phenolic free modified rosin resin were obtained studied to control the biodegradability under composting conditions of materials. The was blended in concentrations 1, 3, 5, 10, 15 parts per hundred (phr) base polymer using industrial plastic processing techniques. Additionally, study effect compatibility PLA, physical performance, water absorption, mechanical behavior, thermal stability, microstructure assessed. incorporation decreased resistance degradation resultant material, disintegration rate slowed down with increasing content resin. diffusion delayed, corrected coefficients rising UP. properties tend decrease while saturation observed for contents higher than 3 phr optimal amount that can be added achieve good interaction PLA matrix, complete miscibility, material cohesion is phr.