ADDITIVES FOR IMPROVING PROCESSING AND PROPERTIES OF POLYLACTIC ACID

摘要

Polylactic acid (PLA) is a bioresin that is rapidly expanding into a variety of applications requiring a range of processing techniques including extrusion, calendaring, blow molding, and thermoforming. However, the low melt strength and brittle nature of the polymer provide challenges in processing and in the final product performance. We have demonstrated that the use of additives can improve processibility, melt strength and impact strength of PLA. The effect of additive type and loading levels on PLA resin properties and clarity will be presented.