Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Study on Mechanical Properties of Waterborne Polyurethane-Acrylic Hybrid Resin for Leather Coationgs

피혁가공용 수용성 아크릴-폴리우레탄 Hybrid Resin의 합성 및 기계적 특성에 관한 연구

  • Lee, Joo-Youb (Department of Chemical Engineering, Daejin University) ;
  • Kim, Ki-Jun (Department of Chemical Engineering, Daejin University)
  • 이주엽 (대전대학교 공과대학 화학공학과) ;
  • 김기준 (대전대학교 공과대학 화학공학과)
  • Received : 2010.04.20
  • Accepted : 2010.06.21
  • Published : 2010.06.30
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Abstract

In this study, we experimented that how to synthesis waterborne urethane-acrylic hybrid resin for leather coatings. First of all, We had analyzed data by FT-IR, SEM and TGA for the machanical properties. By TGA analysis polymers showed heat distortion temperature. and by FT-IR measurement we confirmed that synthesis of urethane and acrylic. In the experiment, solvent resistance, polyurethane and acrylic grades 4-5 showed both a high. Tensile strength measured in the waterborne polyurethane > Acrylic emulsion showed strength in the order. Films were obtained by coating the water born resin on leveled surfaces and allowing them to dry at room temperature for 72hrs. After demolding, the films were kept in a desiccator to avoid moisture contant at $25^{\circ}C$ for 45hrs before the measurements. In this result, the mechanical propersies of waterborne polyurethane-acrylic hybrid resin showed that how effect to resin in leather coating between polyurethane content and acrylic content. Therefore, acrylic emulsion had most high solvent resistance glade and waterborne polyurethane had good result in abrasion test and tensile strength.

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References

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