Multicomponent Blends based on Polylactic Acid, Polyhydroxybuty-rate and thermoplastic Starch

Influence of structure of the blend based on polylactic acid, polyhydroxybutyrate and thermoplastic starch (PLA/TPS/PHB) on morphology and mechanical properties was studied. Optimal composition of the blend was determined to ensure good dispersion of the particular components in the polymer matrix which resulted in acceptable properties of materials for selected applications. In order to obtain a complex description of the studied system, the design of experiment (DoE) was used as an experimental strategy to explore the possible interactions between components of the blend. Mechanical properties were measured 24 h after sample (film) preparation and also after the specific storage time:up to1 month to study the effect of storage time on the mechanical properties.