Journal of Adhesion and Interface (접착 및 계면)

The Society of Adhesion and Interface, Korea (한국접착및계면학회)
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Preparation and Properties of UV Curable Urethane Acrylates for Ink Binder

Ink Binder용 UV 경화형 조성물의 제조 및 특성

  • 박현주 (한국신발피혁연구원 접착제연구실) ;
  • 한창덕 ((주)씨엔에프케이) ;
  • 오상택 (한국신발피혁연구원 접착제연구실)
  • Received : 2013.10.08
  • Accepted : 2013.12.23
  • Published : 2013.12.31
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Abstract

In this study, Ultraviolet (UV) curable urethane acrylates for ink binder was prepared by reaction of IPDI, polyether polyol and HEA. The UV curing behavior of compositions with HEA/PETA ratio on UV irradiation time was investigated by FT-IR spectrophotometer, probe tack tester and Photo-DSC. Conversion % and gel content were increased with increasing UV irradiation time, but probe tack was decreased. Storage modulus, tensile strength and decomposition temperature were increased as PETA content increased. In case of HEA/PETA ratio was 30/70, adhesion property of UV-cured composition on PMMA sheet was excellent.

본 연구에서는 ink binder용으로 isophorone diisocyanate (IPDI)/polyether polyol/2-hydroxyethyl acrylate (HEA)계 UV 경화형 우레탄 아크릴레이트를 중합하였다. HEA/PETA 혼합 비율을 달리한 조성물의 UV 조사 시간에 따른 광경화거동을 FT-IR spectrophotometer, probe tack tester 및 Photo-DSC로 확인하였다. UV 조사 시간이 증가함에 따라 전환률 및 gel content는 증가하였으며 probe tack은 감소하였다. 반응성 희석제로 사용한 PETA 함량이 증가함에 따라 저장탄성률, 인장강도 및 초기분해 온도가 증가하였다. HEA/PETA 비율이 30/70인 경우 UV 경화 후 PMMA sheet에 대한 부착특성이 가장 우수하였다.

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