Processing, thermo-mechanical characterization and gas permeability of thermoplastic starch/poly(butylene trans-1,4-cyclohexanedicarboxylate) blends

Publication date: Available online 5 October 2018Source: Polymer Degradation and StabilityAuthor(s): Laura Genovese, Franco Dominici, Matteo Gigli, Ilaria Armentano, Nadia Lotti, Elena Fortunati, Valentina Siracusa, Luigi Torre, Andrea MunariAbstractIn this contribution, binary blends of thermoplastic starch (TPS) and poly(butylene trans-1,4-cyclohexanedicarboxylate) (PBCE) have been prepared by melt extrusion. The effect of different amounts of PBCE and the presence of citric acid as compatibilizer have been studied with respect to the blend behavior. In particular, morphological and thermal studies allowed for the determination of the compatibility between the blend components, and of their characteristic thermal transitions and thermal stability. Envisioning potential packaging applications, surface wettability, moisture absorption and migration of food simulant have been investigated. In addition, mechanical properties and gas permeability have been evaluated after conditioning the films in dry and humid environment.
Source: Polymer Degradation and Stability - Category: Chemistry Source Type: research