Effect of Processing Aids on the Mechanical Properties of Polylactic Acid
Modified PLA pellets were prepared by mixing polylactic acid(PLA)as the matrix resin with other processing aids.Then the effects were discussed of the dosage of nucleating agent,plasticizer,impact modifier,antioxidant and epoxy chain extender on the mechanical properties of PLA materials.The results showed that the addition of nucleating agent(TMC-210)and antioxidant(1010)slightly improved the performance of PLA material.The addition of plasticizer(ATBC)and impact modifier(PARALOIDEXL-2330)can effectively improve the toughness of PLA,but cause the strength reduction,so the dosage should not exceed 10%.Epoxy chain extender(KL-E4370B)can significantly improve the strength of PLA,and the appropriate dosage should be 4%-6%.
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