Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Enhancement in the Breathability of Biomass-based Polyurethane Non-porous Membrane Films through Hybridizing with Nano-SiO2

Nano-SiO2 복합에 의한 바이오매스 기반 폴리우레탄 무공형 멤브레인 필름의 투습성 향상에 관한 연구

  • Kang, Seung-Gu (Department of Materials Design Engineering, Kumoh National Institute of Technology) ;
  • Choi, Hyeon-jin (Department of Materials Design Engineering, Kumoh National Institute of Technology) ;
  • Kim, Jinmi (Department of Materials Design Engineering, Kumoh National Institute of Technology) ;
  • Lee, Seungjae (Department of Materials Design Engineering, Kumoh National Institute of Technology) ;
  • Park, Jong Sung (Department of Materials Design Engineering, Kumoh National Institute of Technology) ;
  • Kwon, Oh Kyung (B.S.G. Co., Ltd.) ;
  • Min, Byung Gil (Department of Materials Design Engineering, Kumoh National Institute of Technology)
  • 강승구 (금오공과대학교 소재디자인공학과) ;
  • 최현진 (금오공과대학교 소재디자인공학과) ;
  • 김진미 (금오공과대학교 소재디자인공학과) ;
  • 이승재 (금오공과대학교 소재디자인공학과) ;
  • 박종성 (금오공과대학교 소재디자인공학과) ;
  • 권오경 ((주)비에스지) ;
  • 민병길 (금오공과대학교 소재디자인공학과)
  • Received : 2015.03.11
  • Accepted : 2015.04.06
  • Published : 2015.04.30
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Abstract

The aim of this work was to enhance water vapor permeability of bio-polyurethane thin films, which is essential in non-microporous-type films for applications in breathable fabrics, by hybridizing with silica particles. As the bio-polyurethane, which was synthesized using biomass-based $Susterra^{(R)}$ 1,3-propanediol, did not have enough hydrophilicity for a breathable film, the hybridizing effect of hydrophilic nano- or micro-sized silica ($SiO_2$) on the breathability of bio-polyurethane thin films was investigated by measuring the water contact angle and water vapor permeability of the films. It was found that the permeability of the bio-polyurethane film could be significantly enhanced by hybridizing with $nano-SiO_2$ as well as $micro-SiO_2$. It was also observed that the $nano-SiO_2$ was more effective than the $micro-SiO_2$ in improving permeability. It was found that permeability in bio-polyurethane film could be improved up to more than 100% with $nano-SiO_2$ content at 9 wt%.

Keywords

References

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Cited by

  1. Enhancing Breathability of Bio-polyurethane Membrane Films by Hybridizing Them with TiO2 vol.53, pp.2, 2016, https://doi.org/10.12772/TSE.2016.53.083