Effect of chain extender with epoxy-functional acrylic copolymer on Compatibility and Mechanical properties of Poly(lactic acid) and Poly(butylene adipate-<EM>co</EM>-terephthalate) Blend
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초록
내용
Poly(lactic acid)(PLA) and poly(butylene adipate-co-terephthalate)(PBAT) are representative biodegradable polymers, which has been increased in using due to environmental issues and growing interest in eco-friendly plastics. However, poor compatibility and interface separation of PLA/PBAT blends have limited their use as materials requiring mechanical properties. In this study, to improve the compatibility and mechanical strength of PLA/PBAT blend, acrylic copolymer was added by content. As a result, it was demonstrated that mechanical and thermal properties were improved because acrylic copolymer acted as a chain extender for PLA/PBAT blends and formed the co-continuous structure through UTM, FE-SEM and DMA analysis. Therefore, we confirmed PLA/PBAT blend can be applied as a sustainable packaging material for environmental problems.