POLYLACTIC ACID STEREOCOMPLEX COMPOSITIONS AND METHODS FOR MAKING AND USING SAME

摘要

Thermoformed PLA stereocomplex parts are made using a PLA stereocomplex composition having a highest crystallization melting temperature from 200 to 215°C. The stereocomplex composition preferably has less than 5 J/g of lower melting (160 to 190°C) crystallites. The stereocomplex can be pre-annealed in various ways to reduce thermoforming cycle times. The stereocomplex forms parts with low haze and good thermal resistance, at reasonable cycle times.