Abstract
This research investigates the effect of talc additive on physical and mechanical characteristics of poly(lactic acid) (PLA) and poly(butylene succinate) (PBS) polymer blend. In the study, the talc content is varied between 0, 5, 10, and 20 parts per hundred resin (phr) and the PLA/PBS ratio is 80/20 w/w. The results reveal that talc enhances the mechanical properties of PLA/PBS blend. Specifically, tensile strength, Young’s modulus, and impact strength of PLA/PBS/talc composite increase as talc content rises. In addition, fracture toughness increases substantially as talc quantity is raised. The enhanced fracture toughness is attributable to nucleation of talc which promotes crystallization of PLA while hindering PBS crystal growth. Moreover, morphology analysis shows efficient distribution of talc in the polymer matrix.
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