Polymer(Korea), Vol.40, No.3, 471-476, May, 2016
초음파를 이용한 Poly(lactic acid)와 Poly(1,4-Cyclohexylene Dimethylene 1,4-Cyclohexane Dicarboxylate)의 블렌드
Ultrasound-Assisted Blends of Poly(lactic acid) and Poly(1,4-Cyclohexylene Dimethylene 1,4-Cyclohexane Dicarboxylate)
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초록
Poly(lactic acid)(PLA)와 poly(1,4-cyclohexylene dimethylene 1,4-cyclohexane dicarboxylate)(PCCD)의 블렌드에 초음파가 미치는 영향을 조사하였다. 초음파 가진 장치가 장착된 용융 혼련기를 이용하여 PLA/PCCD(50/50) (PCCD50) 블렌드를 준비하였고 물성들을 분석하였다. 초음파를 가진한 블렌드의 물성은 초음파 가진 시간에 매우 의존적이었는데 놀랍게도 1분간 초음파를 가진한 PCCD50의 충격강도는 단순 블렌드에 비해 3배 이상의 값을 보였다. 이 같은 증가는 PLA와 PCCD상간의 더 나은 접합 때문으로 판단되었다.
The effect of ultrasound irradiation on the blend of poly(lactic acid)(PLA) and poly(1,4-cyclohexylen dimethylene 1,4-cyclohexane dicarboxylate)(PCCD) was investigated. The blends of PLA/PCCD(50/50) (PCCD50) were prepared by a melt mixer attached with an ultrasonic device and their properties were analyzed. The properties of sonicated blends were found to be significantly dependent on the duration of the ultrasound irradiation. Surprisingly, for PCCD50, 1 min sonicated samples showed the impact strength over three times higher than untreated ones. The improvement was thought to be due to better adhesion between PLA and PCCD phases.
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