Journal of Adhesion and Interface (접착 및 계면)

The Society of Adhesion and Interface, Korea (한국접착및계면학회)
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Adhesion Property of Low-Viscosity Polyurethane Hot-Melt Adhesive in according to the Deblocking Temperature and Content of Reactive Diluents

해리온도와 반응성 희석제 함량에 따른 저점도 폴리우레탄 핫멜트 접착제의 접착특성

  • Choi, Min Ji (Korea Institute of Footwear and Leather Technology (KIFLT)) ;
  • Jeong, Boo Young (Korea Institute of Footwear and Leather Technology (KIFLT)) ;
  • Cheon, Jung Mi (Korea Institute of Footwear and Leather Technology (KIFLT)) ;
  • Ha, Chang-Sik (Department of Polymer Engineering, Pusan National University) ;
  • Chun, Jae Hwan (Korea Institute of Footwear and Leather Technology (KIFLT))
  • 최민지 (한국신발피혁연구원 고분자표면연구실) ;
  • 정부영 (한국신발피혁연구원 고분자표면연구실) ;
  • 천정미 (한국신발피혁연구원 고분자표면연구실) ;
  • 하창식 (부산대학교 고분자공학과) ;
  • 천제환 (한국신발피혁연구원 고분자표면연구실)
  • Received : 2016.05.13
  • Accepted : 2016.05.27
  • Published : 2016.06.30
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Abstract

In this study, low-viscosity polyurethane hot-melt were synthesized with polyether polyol / polyester polyol, 4,4-dicyclohexylmethane diisocyanate ($H_{12}MDI$), 2-butanone oxime (MEKO) to improve the properties and peel strength. The properties of the synthesized low-viscosity polyurethane hot-melt was evaluated through FT-IR, viscosity meter and UTM. When the content of the reactive diluent increases and the NCO-blocked prepolymer decreases, the viscosity of low-viscosity polyurethane hot-melt adhesive was increased. When the ratio of OH-terminated oligomer, NCO-blocked prepolymer and content of reactive diluent is 1 : 0.5 : 0.5, low-viscosity polyurethane hot-melt showed 1.1 kgf/cm peel strength.

본 연구에서는 반응성 희석제 함량에 따라 접착강도 및 물성을 향상시키기 위해 polyether polyol/polyester polyol, 4,4-dicyclohexylmethane diisocyanate ($H_{12}MDI$), 2-butanone oxime (MEKO)를 사용하여 저점도 폴리우레탄 핫멜트를 합성하였다. 합성된 저점도 폴리우레탄 핫멜트의 물성은 FT-IR, viscosity meter 및 UTM 등을 통해 확인하였다. 반응성 희석제의 함량이 증가하고 NCO-blocked prepolymer가 감소함에 따라 저점도 폴리우레탄 핫멜트 접착제의 점도는 증가하였으며, OH-terminated oligomer, NCO-blocked prepolymer, 반응성 희석제 함량의 비가 1 : 0.5 : 0.5일 때 1.1 kgf/cm 접착강도를 나타내었다.

Keywords

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