Hydrophobic composite coatings with photocatalytic self-cleaning properties by micro/nanoparticles mixed with fluorocarbon resin |
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Affiliation: | 1. Department of Chemistry, Sungkyunkwan University, Suwon, 440-746, Korea;2. SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 440-746, Republic of Korea;3. Biorefinery Research Group, Korean Research Institute of Chemical Technology, Daejeon, 306-600, Korea;1. Shenyang National Laboratory for Materials Science, Northeastern University, No.3-11 Wenhua Road, Shenyang, 110819, PR China;2. Institute of Metal Research, Chinese Academy of Sciences, Wencui Rd 62, Shenyang, 110016, PR China;3. Africa Centre of Excellence in Future Energies and Electrochemical Systems, Federal University of Technology Owerri, PMB 1526, Owerri, Imo State, Nigeria |
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Abstract: | A newly developed hydrophobic composite coating was fabricated by incorporating modified TiO2 nanoparticles and hydrophobic material polytetrafluoroethylene (PTFE) micropowders dispersed in fluorocarbon resin. Moreover, the surface characteristics and self-cleaning properties of the newly developed composite material were examined. The material was found to exhibit sufficient hydrophobicity with a water contact angle of 133°. The surface free energy of the composite coating was 4.11 mJ/m2. Scanning electron microscopy results revealed a micro/nanocomposite structure composed of PTFE micropowders and TiO2 nanoparticles, which was verified by X-ray photoelectron spectroscopy results. Through ultraviolet irradiation the modified TiO2-PTFE/FEVE composite coating successfully removed oleic acid absorbed on its surface. These results showed that the functional composite coating had a sufficiently hydrophobic surface with an efficient self-cleaning effect. |
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Keywords: | Film Composite Fluorocarbon resin Self-cleaning properties |
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