Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
권호 표지

Non-porous Breathable Waterproof Coating of PET Fabrics Using UV-curable Polyurethane Diacrylate

자외선 경화형 폴리우레탄 디아크릴레이트의 UV 코팅에 의한 PET 직물의 무공형 투습방수가공

  • Koo, Gwang-Hoe (Department of Nano-Bio Textile Engineering, Kumoh National Institute of Technology) ;
  • Jang, Jin-Ho (Department of Nano-Bio Textile Engineering, Kumoh National Institute of Technology)
  • 구광회 (금오공과대학교 나노바이오텍스타일공학과) ;
  • 장진호 (금오공과대학교 나노바이오텍스타일공학과)
  • Received : 2010.08.02
  • Accepted : 2010.10.02
  • Published : 2010.10.31
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Abstract

Non-porous breathable waterproof PET fabrics were prepared by a UV coating of UV-curable polyurethane diacrylate (PUA) formulations. The performance of the monolithically coated fabrics was affected by the type of UV lamp, UV energy, photoinitiator type and its concentration. The optimal UV coating was achieved when the PUA formulation containing 10 w% benzophenone was cured with a UV energy of $3\;J/cm^2$ using a H-bulb. The moisture permeability of the UV-coated fabrics increased with increasing photoinitiator concentration with a marginal decrease in hydrostatic pressure. The addition of silicone diacrylate to the formulation was found to be beneficial in increasing the hydrostatic pressure. The UV-based PUA coating can be an alternative to the conventional thermal curing of solvent-borne polyurethane coatings due to the enhanced environment friendliness and energy saving.

Keywords

Acknowledgement

Supported by : 한국에너지 기술평가원(KETEP)

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