Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Rheological Behavior of Polylactic Acid Solution and Physical Properties of Resulting Film Using Cellulose Nanocrystals

Cellulose Nanocrystal 도입에 따른 Polylactic Acid 용액의 유변학적 거동 관찰 및 필름의 물성 향상 연구

  • Kim, Taeho (Department of Organic and Nano System Engineering, Konkuk University) ;
  • Ko, Eunjoo (Department of Organic and Nano System Engineering, Konkuk University) ;
  • Ahn, Jungbin (Department of Organic and Nano System Engineering, Konkuk University) ;
  • Park, Sanghyun (Division of Chemical Engineering, Konkuk University) ;
  • Pak, Sewon (Division of Chemical Engineering, Konkuk University) ;
  • Kim, Minhyung (Division of Chemical Engineering, Konkuk University) ;
  • Kim, Hyungsup (Department of Organic and Nano System Engineering, Konkuk University)
  • 김태호 (건국대학교 공과대학 유기나노시스템공학과) ;
  • 고은주 (건국대학교 공과대학 유기나노시스템공학과) ;
  • 안정빈 (건국대학교 공과대학 유기나노시스템공학과) ;
  • 박상현 (건국대학교 공과대학 화학공학부) ;
  • 박세원 (건국대학교 공과대학 화학공학부) ;
  • 김민형 (건국대학교 공과대학 화학공학부) ;
  • 김형섭 (건국대학교 공과대학 유기나노시스템공학과)
  • Received : 2020.11.16
  • Accepted : 2020.12.18
  • Published : 2020.12.31
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Abstract

Polylactic acid (PLA), a polymer synthesized from biomass, is biodegradable and sustainable. PLA has limited applications, owing to its poor mechanical properties. In this study, cellulose nanocrystals (CNCs) were introduced into a PLA solution to improve the mechanical properties of the composite film without sacrificing biodegradability. The dispersion of CNCs was investigated based on the rheological behavior of the solution. The uniform dispersion of CNCs decreased the solution viscosity and enhanced the mechanical performance of the resulting film. When the CNC content was 2 wt%, the thermal decomposition onset temperature of the film improved.

Keywords

Acknowledgement

이 논문은 2020학년도 건국대학교의 연구년 교원 지원에 의하여 연구되었음. 이 논문은 2018년도 정부(과학기술정보통신부)의 재원으로 한국연구재단-미래선도기술개발사업의 지원을 받아 수행된 연구임(No. 2018M3C1B9069748).

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