Enhancing Breathability of Bio-polyurethane Membrane Films by Hybridizing Them with TiO2
| Autor: | Seong Hyun Hong, Oh Kyung Kwon, Il Jung Joo, Hojin Jin, Goo Kang, Seung-Gu Kang, Nam Ho Kwak, Byung Gil Min |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
chemistry.chemical_classification
food.ingredient Computer science technology industry and agriculture Nanoparticle 020207 software engineering 02 engineering and technology Polyethylene glycol 021001 nanoscience & nanotechnology Soybean oil Hydroxylation Contact angle chemistry.chemical_compound Membrane food chemistry Chemical engineering Polyol Permeability (electromagnetism) 0202 electrical engineering electronic engineering information engineering Water vapor permeability Thin film 0210 nano-technology |
| Zdroj: | Textile Science and Engineering. 53:83-90 |
| ISSN: | 1225-1089 |
| Popis: | The aim of this work was to enhance the water vapor permeability of bio-poly-urethane thin film, whose essential application is as a non-microporous type of film inbreathable fabrics, by hybridizing it with nano- and micro-sized titania (TiO 2 ). The bio-poly-urethanes were synthesized from 4,4-diphenylmethane diisocyanate (MDI) and a polyolmixture containing polyethylene glycol (PEG) and soybean oil-based polyol, that is, bio-gly-cols by the hydroxylation of soybean oils upto 25% by weight of bio-polyurethane. Westudied the effect of hybridizing the bio-polyurethane films with hydrophilic nano- ormicro-sized TiO 2 on their breathability by measuring the water contact angle and the watervapor permeability of the films; it was found to significantly enhance the permeability ofthe bio-polyurethane film. Further, nano-TiO 2 was more effective than micro-TiO 2 due tothe higher surface area resulting from nano particles. On the other hand, it is expected thatit would be possible to provide additive functionality to the bio-PU membranes due tophotocatalytic effect of nano-TiO |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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