화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Applied Chemistry for Engineering, Vol.22, No.6, 610-616, December, 2011
Export Citation
자외선 경화형 폴리우레탄 아크릴레이트/ZnO 나노콤포지트 필름의 제조 및 특성 분석
Preparation and Characterization of UV-cured Polyurethane Acrylate/ZnO Nanocomposite Films
전권영, 박수일, 서종철†, 서광원1, 한학수1, 유영철2
  • 연세대학교 과학기술대학 패키징학과
  • 1연세대학교 공과대학 화공생명공학과
  • 2(주)석경에이티 부설연구소
Gwonyoung Jeon, Su-il Park, Jongchul Seo†, Kwangwon Seo1, Haksoo Han1, and Young Chul You2
  • Department of Packaging, Yonsei University, Kangwondo 220-710, Korea
  • 1Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 120-749, Korea
  • 2R&D Center, Sukgyung AT Co., Gyeonggi-do 425-100, Korea
E-mail:
초록
패키징 소재로의 응용을 위한 자외선 경화형 폴리우레탄 아크릴레이트/ZnO 나노복합필름을 ZnO의 함량을 달리하여 제조하였다. ZnO 함량을 달리하여 제조한 필름의 특성을 살펴보기 위하여 FTIR, WAXD, SEM, DSC, OTR, UV/VIS 그리고 antimicrobial test를 수행하였다. FTIR과 SEM결과는 PUA와 ZnO 나노입자 사이에 화학적 결합이나 상호작용이 약한 것을 확인할 수 있었으며, 이로 인해 무기 필러인 ZnO를 첨가하더라도 열적 특성의 향상을 나타내지 않는 것을 확인하였다. 그러나 ZnO 나노입자의 함량 증가에 따라 자외선 차단성과 항균성이 크게 증가하는 것을 확인하였다. 또한, 산소 투과도는 ZnO의 함량이 증가함에 따라 2005 cc/m2/day에서 150 cc/m2/day로 크게 감소하였으며, 패키징 응용을 위한 차단성 필름으로서 응용 가능성이 높다는 것을 확인하였다. 이러한 PUA/ZnO 필름의 물성은 무기필러의 분산상태와 필름의 모폴로지에 크게 관계가 있는 것을 확인하였다.
A series of polyurethane acrylate/ZnO (PUA/ZnO) nanocomposite films with different ZnO contents were successfully prepared via a UV-curing system. The synthesis and physical properties including morphological structure, thermal properties, barrier properties and optical properties, and antimicrobial properties were investigated as a function of ZnO concentration. FTIR and SEM results showed that these PUA/ZnO nanocomposite films did not have a strong interaction between PUA and ZnO, which may lead to no increase in thermal stability. By incorporating ZnO nanoparticles, the UV blocking and antibacterial properties increased as the content of ZnO increased. Specially, the oxygen permeability in composite films changed from 2005 cc/m2/day to 150 cc/m2/day by adding the ZnO nanoparticle, which indicates that the PUA/ZnO nanocomposite films can be applied as good barrier packaging materials. Physical properties of the UV-cured PUA/ZnO nanocomposite film are strongly dependent upon the dispersion state of ZnO nanoparticles and their morphology in the films.
Keywords:Polyurethane acrylate;ZnO nanoparticles;packaging material;PUA/ZnO nanocomposite film
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