폴리머 (Polymer(Korea))

  • 제30권3호
  • /
  • Pages.202-206
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  • 2006
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  • 0379-153X(pISSN)
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  • 2234-8077(eISSN)
한국고분자학회 (The Polymer Society of Korea)
권호 표지

트리아세틴/ESO를 이용한 가소화 셀룰로오스 디아세테이트의 제조 및 물성

Preparation and Properties of Plasticized Cellulose Diacetate Using Triacetine/Epoxidized Soybean Oil

  • 이상환 (성균관대학교 화학공학과) ;
  • 이상율 (성균관대학교 화학공학과) ;
  • 임환규 (목원대학교 디자인소재공학과) ;
  • 남재도 (성균관대학교 고분자공학과) ;
  • 계형산 (목원대학교 디자인소재공학과) ;
  • 이영관 (성균관대학교 화학공학과)
  • Lee, Sang-Hwan (Department of Chemical Engineering, Sungkyunkwan University) ;
  • Lee, Sang-Yool (Department of Chemical Engineering, Sungkyunkwan University) ;
  • Lim, Hwan-Kyu (Department of Design & Materials, Mokwon University) ;
  • Nam, Jae-Do (Department of Polymer Science & Engineering, Sungkyunkwan University) ;
  • Kye, Hyoung-San (Department of Design & Materials, Mokwon University) ;
  • Lee, Young-Kwan (Department of Chemical Engineering, Sungkyunkwan University)
  • 발행 : 2006.05.01
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초록

트리아세틴(TA)을 가소제로 이용하여 용융 가공법으로 가소화된 셀룰로오스 디아세테이트(CDA)를 제조하였다. 또한 2차 가소제로 에폭시화된 콩기름(ESO)을 사용하여 CDA의 가공성을 향상시켰다. DMA분석으로 CDA에 20%의 가소제를 사용한 경우 $T_g$가 약 $50^{\circ}C$ 낮게 나타났고 여기에 ESO를 5% 더 첨가했을 때는 약 $20^{\circ}C\;T_g$가 감소하였다. 또한 TA로 가소화된 CDA필름이 폴리프로필렌(PP) 또는 폴리락트산(PLA)보다 우수한 인장강도 및 탄성률을 나타내었다. 호기성 퇴비화 조건에서 CDA는 60일 동안 셀룰로오스 대비 약 90%의 생분해도를 나타내었다.

The plasticized cellulose diacetate (CDA) was prepared by melt processing methods using triacetine (TA) as a plasticizer. Additionally, processability of CDA was enhanced by using epoxidized soybean oil as a secondary plasticizer. The glass transition temperature of plasticized CDA was observed at $50^{\circ}C$ lower than virgin CDA and the incorporation of 5% ESO also resulted in the additional $20^{\circ}C$ decrease in the $T_g$. The tensile properties and modulus of plasticized CDA were better than commercial PP and PLA. The aerobic biodegradability of CDA in controlled compositing condition resulted in 90% of degradation during 60 days.

키워드

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