Comparative Study on Properties of PBAT/PBSA Film Modified by a Multi-Functional Epoxide Chain Extender or Benzoyl Peroxide

Poly(butylene adipate-co-terephthalate) (PBAT) and poly(butylene succinate-co-adipate) (PBSA) blend films were prepared with different contents of a multifunctional epoxide chain extender Joncryl ADR-4468 (ADR) or benzoyl peroxide (BPO). The long-chain-branching (LCB) introduced by ADR branched/crosslinked entanglement induced BPO increased melt elasticity, viscosity compatibility, as indicated thermal properties, rheological morphological analyses. It was found that the elongation at break tensile strength significantly improved, due to enhancement compatibility interfacial adhesion incorporation BPO. best mechanical properties obtained in PBAT/PBSA/ADR (60/40/0.3) (A4T6A0.3) PBAT/PBSA/BPO (60/40/0.9) (A4T6B0.9) films, respectively. With rapid initiation growth BPO, it has improved transparency film. can be used interchangeably improving comprehensive PBAT/PBSA would provide more strategies for developing biodegradable materials various applications.