Self-cleaning Property of Polyester Fabrics Finished with 3DOM TiO 2
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ISSN 1229-9197 (print version) ISSN 1875-0052 (electronic version)
Self-cleaning Property of Polyester Fabrics Finished with 3DOM TiO2 Panida Joomjarearn1, Supakit Achiwawanich1, Jantip Setthayanond2, and Potjanart Suwanruji1* 1
Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand Department of Textile Science, Faculty of Agro-Industry, Kasetsart University, Bangkok 10900, Thailand (Received October 8, 2019; Revised December 5, 2019; Accepted December 26, 2019)
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Abstract: Three-dimensionally ordered macroporous titanium dioxide (3DOM TiO ) was prepared by a sol-gel method using poly(methyl methacrylate) as a template. The synthesized 3DOM TiO was finished on poly(ethylene terephthalate) and poly(lactic acid) fabrics by a pad-dry-cure method to enhance self-cleaning properties. Discoloration of curcumin, carmoisine and methylene blue stains on finished fabrics under UVA irradiation was examined to evaluate its self-cleaning abilities. The results showed that 3DOM TiO on the finished fabrics could diminish the stains in a higher degree as compared to the unfinished fabrics and fabrics finished with TiO nanoparticles. Dyeing properties of polyester fabrics with C.I. Disperse Red 60 were slightly affected by 3DOM TiO . Color strength (K/S) and wash fastness of the 3DOM TiO finished fabrics were a little lower than the unfinished counterparts. 2
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Keywords: Self-cleaning property, 3DOM TiO , PET, PLA, Finishing 2
another polyester fabric in the market that is considered an eco-friendly polymer because of its biodegradability features obtained from renewable resources such as corn, sugar beets, sugar cane and wheat [18-20]. However, alkaline conditions must be avoided in dyeing and finishing of PLA fabrics since PLA is sensitive to alkaline [21]. Disperse dyes are widely used in the dyeing of polyesters. Disperse dyeing is typically carried out at the temperature above the glass transition temperature (Tg) of the fiber employed. After dyeing, the surface dyes are removed by the reduction clearing process. In general, disperse dyes have moderate to good fastness properties [22,23]. The objective of this work is to finish PET and PLA fabrics with synthesized 3DOM TiO2 in order to impart selfcleaning ability. This would benefit polyester fabrics in different applications i.e. home furnishings and upholsteries for cars that are barely washed. The action of 3DOM TiO2 on PET and PLA fabrics could diminish stains without washing. In this work, 3DOM TiO2 was applied on the polyester fabrics by a pad-dry-cure method. Self-cleaning abilities were investigated from color fading of curcumin, carmoisine and methylene blue stains under UV irradiation. Effect of 3DOM TiO2 on polyester fabrics towards disperse dyeing and fastness properties were also studied.
Introduction Three dimensionally ordered macroporous (3DOM) structures are defined by a sub-micrometer pore size together with an interconnected porous network [1]. 3DOM structures have been utilized in various applications
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