Ternary blends of phenoxy resins with polyamides and polyesters

摘要

The objective of this study was to investigate the potential of phenoxy resins as compatibilizer in the blending of polyamides and polyesters. Phenoxy resins react strongly with polyesters to produce grafted copolymers, which potentially can compatibilize immiscible blends of polyamide 6 (PA6) and polybutylene terephthalate (PBT). In this study, we considered ternary blends of two phenoxy resins with PA6 and PBT as both polymers are heavily used in automotive industry. Our study revealed that blends containing 5-30% by weight of phenoxy resins, although of two-phase nature, offered higher impact strengths and tensile modulus and much better phase-stability than uncompatibilized blends.