tailieunhanh - Application of self–cleaning treatment on cotton and pes co fabric using Tio2 and Sio2 coating synthesized by sol–gel method

The structural properties of these nanocomposites were characterized with scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT–IR). The scanning electron microscope (SEM) photo showed that the TiO2– SiO2 layer is thicker than TiO2 layer on the cotton fabric and PES/Co fabric and the Ti–particles were always surrounded by amorphous SiO2 and never alone by themselves. The TiO2–SiO2 nanocomposites were coated onto cotton and PES/Co fabrics by a simple dip–pad–dry–cure process. | Journal of Science and Technology 55 (1B) (2017) 77–84 APPLICATION OF SELF–CLEANING TREATMENT ON COTTON AND PES/CO FABRIC USING TiO2 AND SiO2 COATING SYNTHESIZED BY SOL–GEL METHOD Bui Mai Huong*, Trinh Thi Kim Hue Department of Textile–Garment Engineering, Faculty of Mechanical Engineering, HCMUT–VNUHCM, 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam * Email: bmhuong@ Received: 30 December 2017; Accepted for publication: 3 March 2017 ABSTRACT The photocatalytic activity of TiO2–SiO2 coated and TiO2 coated on 100% cotton and PES/Co fabrics was investigated through the self–cleaning of red wine stains and coffee stains. It was shown that a TiO2 species could be produced at temperatures of 25 °C, 40 °C and 60 °C with acceptable photo–activity and TiO2–SiO2 nanocomposites were prepared by a sol–gel process at a low temperature. The discoloration of red wine and coffee led to CO2 evolution that was more efficient for TiO2–SiO2 coated cotton for samples than of TiO2 coated ones. The textile surface did not show any change after several consecutive light–induced discoloration cycles of a red wine stain and coffee stain. The structural properties of these nanocomposites were characterized with scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT–IR). The scanning electron microscope (SEM) photo showed that the TiO2– SiO2 layer is thicker than TiO2 layer on the cotton fabric and PES/Co fabric and the Ti–particles were always surrounded by amorphous SiO2 and never alone by themselves. The TiO2–SiO2 nanocomposites were coated onto cotton and PES/Co fabrics by a simple dip–pad–dry–cure process. Keywords: self–cleaning, fabric, TiO2–SiO2, coating, sol–gel method. 1. INTRODUCTION The term of “making clothes wash themselves” has become more popular in recent years, when fabric only need a spot of sunshine to get rid of those spills and stains during usage. The method developed is a saving efficient way to grow special .

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