Journal of Adhesion and Interface (접착 및 계면)

The Society of Adhesion and Interface, Korea (한국접착및계면학회)
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Synthesis and Properties of Waterborne Polyurethane Acrylate Adhesive

수분산 폴리우레탄 아크릴 접착제의 합성 및 물성 연구

  • Lee, Seung Hwan (Korea Institute of Footwear and Leather Technology (KIFLT)) ;
  • Cheon, Jung Mi (Korea Institute of Footwear and Leather Technology (KIFLT)) ;
  • Jeong, Boo Young (Korea Institute of Footwear and Leather Technology (KIFLT)) ;
  • Kim, Han-Do (Department of Organic material Science and Engineering, Pusan National University) ;
  • Chun, Jae Hwan (Korea Institute of Footwear and Leather Technology (KIFLT))
  • 이승환 (한국신발피혁연구원 고분자표면연구실) ;
  • 천정미 (한국신발피혁연구원 고분자표면연구실) ;
  • 정부영 (한국신발피혁연구원 고분자표면연구실) ;
  • 김한도 (부산대학교 유기소재시스템공학과) ;
  • 천제환 (한국신발피혁연구원 고분자표면연구실)
  • Received : 2015.12.05
  • Accepted : 2015.12.18
  • Published : 2015.12.30
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Abstract

In this study, waterborne polyurethane acrylate were synthesized with polyester polyol, 4,4-dicyclohexylmethane diisocyanate ($H_{12}MDI$), dimethylol propionic acid (DMPA), acrylate monomer to improve the properties and peel strength. In addition, the properties of the synthesized waterborne polyurethane acylate was evaluated through FT-IR, particle size analysis, UTM, peel strength. As the acrylic acid content increased, particle size increased. In the results of mechanical properties, when the acrylic acid contents increased, tensile strength was increased but elongation was decreased. All peel strength was improved as the acrylic acid contents of WPUA and acrylate ratio of PU/acrylate increased. Optimum peel strength obtained when acrylic acid was 0.5 wt%.

본 연구에서는 수분산 폴리우레탄 아크릴레이트의 접착력 및 물성을 향상시키기 위하여 polyester polyol, 4,4-dicyclohexylmethane diisocyanate ($H_{12}MDI$), dimethylol propionic acid (DMPA), acrylate monomer를 사용하여 수분산 폴리우레탄 아크릴레이트를 합성하였다. 또한 합성된 수분산 폴리우레탄 아크릴레이트의 물성은 FT-IR, 입도분석, UTM, 접착력 등을 평가하였다. 입도 분석에서 아크릴산의 함량이 증가함에 따라 입자의 크기가 증가하였고, 기계적 물성을 평가한 결과, 아크릴산의 함량이 증가함에 따라 인장강도는 증가하였고 신율은 감소하였다. 접착강도는 PU/acryl 비율 중 acryl의 함량이 증가, 아크릴산의 함량이 증가할수록 증가하였다. 아크릴산의 함량이 0.5 wt%일 때 가장 높은 접착강도를 나타내었다.

Keywords

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