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Silica Aerogel Application to Polyester Fabric for Outdoor Clothing
Pelin Altay,Raziye Atakan,Gülay Özcan 한국섬유공학회 2021 Fibers and polymers Vol.22 No.4
Most producers want to have a cheap, one-step system that will successfully apply multi-finishing operationswithout affecting any of the desired textile properties. Silica aerogel, used for isolation purposes in different areas such asconstruction, has been used in textile finishing in this study. 100 % polyester fabrics, which are widely used in outerwear,were impregnated with silica aerogel paste and binder at lower temperature and time than that applied for conventionalcoating method, providing decreased energy consumption. The samples were tested for wettability, soil release andhydrophobicity both before and after repeated laundering. Burst strength tests were also performed to investigate strengthproperties of the fabrics. The presence of silica groups on the treated fabrics was confirmed by FTIR spectra and thermalcharacteristics of the samples were evaluated by using differential scanning calorimeter (DSC). The results showed thataerogel impregnated fabrics provide superhydrophobic properties with a contact angle of around 170 o and improved soilrelease properties even at very low add-ons. It was also found that the silica aerogel treatment has no adverse effect on thefabric appearance or strength properties.
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