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Nano-SiO2 복합에 의한 바이오매스 기반 폴리우레탄 무공형 멤브레인 필름의 투습성 향상에 관한 연구Enhancement in the Breathability of Biomass-based Polyurethane Non-porous Membrane Films through Hybridizing with Nano-SiO2
- Other Titles
- Enhancement in the Breathability of Biomass-based Polyurethane Non-porous Membrane Films through Hybridizing with Nano-SiO2
- Issue Date
- 2015
- Publisher
- 한국섬유공학회
- Keywords
- biomass-based polyurethane; nano-silica; hybrid film; breathable film; contact angle; permeability
- Citation
- 한국섬유공학회지, v.52, no.2, pp.73 - 78
- Journal Title
- 한국섬유공학회지
- Volume
- 52
- Number
- 2
- Start Page
- 73
- End Page
- 78
- ISSN
- 1225-1089
- 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® 1,3-propanediol, did not have enough hydrophilicity for a breathable film, the hybridizing effect of hydrophilic nano- or micro-sized silica (SiO2) 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-SiO2 as well as micro-SiO2. It was also observed that the nano-SiO2 was more effective than the micro-SiO2 in improving permeability. It was found that permeability in bio-polyurethane film could be improved up to more than 100% with nano-SiO2 content at 9 wt%.
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Collections - School of Science and Engineering of chemical Materials > 1. Journal Articles
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