Dept. of Applied Chemical Engineering, Korea University of Technology and Education, 1600 Chungjeol-ro, Cheonan 31253, Korea
한국기술교육대학교 응용화학공학과
The goal of this study is to develop furan based bio-composites by blending poly(cyclohexylenedimethylene furandicarboxylate-co-ethylene furandicarboxylate) (PCF-co-EF) with poly(lactic acid) (PLA). Two types of PLA are used in this study and one is neat PLA mostly consisting of L-lactide (4032D) and the other is master batched PLA with various additives (3801X). The FE-SEM results showed sub-micron dispersion of the spherical domains in the blends, which indicates compatibility between PCF-co-EF and PLA. The thermal properties and non-isothermal crystallization kinetics shows that the PLA accelerates the rate of crystallization. Dynamic mechanical analysis showed compatibility of the blends and the improvement of ductility of the composites.
본 연구는 poly(cyclohexylenedimethylene furandicarboxylate-co-ethylene furandicarboxylate)(PCF-co-EF)와 poly(lactic acid)(PLA)를 블렌드하여 furan 기반의 바이오 복합재 개발을 목표로 하였다. PLA는 순수 PLA(4032D)와 첨가제가 마스터 배치된 PLA(3801X)를 사용하였다. FE-SEM을 통해 서브 마이크론의 구형 도메인 입자들이 복합재 내에 분산되어 있는 것을 통해 상용성을 확인하였고, 열적 물성 분석 및 비등온 결정화 거동 분석을 통해 PLA가 복합재의 결정화 속도를 가속시킨다는 것을 확인하였다. 또한 DMA를 이용한 동적 물성 측정을 통해 복합재의 상용성 및 연성의 향상을 확인하였다.
Keywords: poly(cyclohexylenedimethylene furandicarboxylate-co-ethylene furandicarboxylate), poly(lactic acid), polymer blend, crystallization kinetics, thermal properties
2018; 42(4): 610-619
Published online Jul 25, 2018
Dept. of Applied Chemical Engineering, Korea University of Technology and Education, 1600 Chungjeol-ro, Cheonan 31253, Korea