In this area done a little research, but recent activity has increased due to the importance and understanding that a slight increase in glass transition temperature of polylactide-based materials can significantly broaden its scope. Also investigated the possibility of lowering the glass transition temperature of PLA, but it is usually done in an attempt to increase the rigidity of the PLA. The paper of Anderson considered this area research and other strategies to enhance the rigidity of PLA. Additives that increase the toughness of PLA, in general, are intended to enhance the toughness of the material or tensile strength. Univ. of Iowa often says this. However, the increase in performance of any of the these parameters occurred at the expense of the module and / or tensile strength. In fact, comparisons between studies can be problematic, since some strategies to improve Strength is often not provided a full profile of properties. In addition to the reduction of the glass through plasticization studied many techniques to strengthen rubber. Under the latter method with PLA were mixed different materials. If you are unsure how to proceed, check out Newcastle University.
In addition to the binary mixtures studied several ternary mixtures that include a suitable additive to improve the compatibility of the components. One of the main problems in any method of mixing with the PLA is initial and environmental compatibility of the partner mix. On the PLA were mixed, many materials, but only some of them are based on renewable materials and / or destroyed in natural conditions. Recent Research in PLA has focused on the introduction of renewable materials in composites containing PLA.