TiO2 하이브리드에 의한 바이오-폴리우레탄 멤브레인 필름의 투습성향상에 관한 연구Enhancing Breathability of Bio-polyurethane Membrane Films by Hybridizing Them with TiO2
- Other Titles
- Enhancing Breathability of Bio-polyurethane Membrane Films by Hybridizing Them with TiO2
- Authors
- 강승구; 강구; 곽남호; 진호진; 홍성현; 주일중; 권오경; 민병길
- Issue Date
- Feb-2016
- Publisher
- 한국섬유공학회
- Keywords
- bio-polyurethane; nano-titania; hybrid film; breathable film; contact angle; permeability
- Citation
- 한국섬유공학회지, v.53, no.2, pp.83 - 90
- Journal Title
- 한국섬유공학회지
- Volume
- 53
- Number
- 2
- Start Page
- 83
- End Page
- 90
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/19152
- ISSN
- 1225-1089
- Abstract
- The aim of this work was to enhance the water vapor permeability of bio-polyurethane thin film, whose essential application is as a non-microporous type of film in breathable fabrics, by hybridizing it with nano- and micro-sized titania (TiO2). The bio-polyurethanes were synthesized from 4,4-diphenylmethane diisocyanate (MDI) and a polyol mixture containing polyethylene glycol (PEG) and soybean oil-based polyol, that is, bio-glycols by the hydroxylation of soybean oils upto 25% by weight of bio-polyurethane. We studied the effect of hybridizing the bio-polyurethane films with hydrophilic nano- or micro-sized TiO2 on their breathability by measuring the water contact angle and the water vapor permeability of the films; it was found to significantly enhance the permeability of the bio-polyurethane film. Further, nano-TiO2 was more effective than micro-TiO2 due to the higher surface area resulting from nano particles. On the other hand, it is expected that it would be possible to provide additive functionality to the bio-PU membranes due to photocatalytic effect of nano-TiO2.
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Collections - School of Science and Engineering of chemical Materials > 1. Journal Articles
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