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Ben J, Wu P, Wang Y, Liu J, Luo Y. Preparation and Characterization of Modified ZrO 2/SiO 2/Silicone-Modified Acrylic Emulsion Superhydrophobic Coating. MATERIALS (BASEL, SWITZERLAND) 2023; 16:7621. [PMID: 38138763 PMCID: PMC10744588 DOI: 10.3390/ma16247621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/09/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023]
Abstract
Superhydrophobic coatings have increasingly become the focal point of research due to their distinctive properties like water resistance, wear resistance, and acid-base resilience. In pursuit of maximizing their efficiency, research has primarily revolved around refining the fabrication process and the composition of emulsion/nanoparticle coatings. We innovatively devised a superhydrophobic coating by employing a spraying technique. This involved integrating a γ-Methacryloyloxypropyltrimethoxysilane (KH570)-modified ZrO2/SiO2/silicone-modified acrylic emulsion. A comprehensive evaluation of this coating was undertaken using analytical instruments such as Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and confocal laser scanning microscopy (CLSM). The coating demonstrated exceptional performance across a range of tests, including wear, immersion, and anti-icing cleaning, showcasing notable wear resistance, sodium chloride corrosion resistance, self-cleaning efficiency, and thermal stability. In particular, one coating exhibited super-hydrophobic properties, with a high contact angle of 158.5 degrees and an impressively low rolling angle of 1.85 degrees. This remarkable combination of properties is attributed to the judicious selection of components, which significantly reinforced the mechanical strength of the coating. These enhancements make it highly suitable for industrial applications where self-cleaning, anti-icing, and anti-contamination capabilities are critical.
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Affiliation(s)
- Jiaxin Ben
- College of 2011, Nanjing Tech University, Nanjing 211800, China
| | - Peipei Wu
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211800, China
| | - Yancheng Wang
- College of 2011, Nanjing Tech University, Nanjing 211800, China
| | - Jie Liu
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211800, China
| | - Yali Luo
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211800, China
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Yao X, Kong Z, Yang F, Wu X, Wu Y. Study on the Difference of Superhydrophobic Characteristics of Different Wood Furniture Substrates. Polymers (Basel) 2023; 15:polym15071644. [PMID: 37050257 PMCID: PMC10096626 DOI: 10.3390/polym15071644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/22/2023] [Accepted: 03/23/2023] [Indexed: 03/29/2023] Open
Abstract
To enhance the stability of wood and decrease restrictions on its use in the furniture industry, hydrophobic modification can be employed to confer waterproof, anti-fouling, and self-cleaning properties. The present study outlines the preparation of silica sol using the sol–gel method, followed by impregnation and chemical vapor deposition methods to modify the sol. After grafting 1H,1H,2H,2H-perfluoro-decyl trichlorosilane (FDTS), hydrophobic and superhydrophobic properties were imparted to the wood substrate. To explore the correlation between the surface properties of the wood substrate and superhydrophobic coatings, the densities, porosities, and surface roughness of various tree species were compared. The results showed that the sol–gel method successfully constructed hydrophobic coatings on different wood substrates, with six samples (poplar, elm, toon wood, paulownia, ashtree, and black walnut) achieving superhydrophobic surfaces, with densities ranging from 0.386 to 0.794 g/cm3, porosity ranging from 13.66 to 42.36%, roughness ranging from 4.660 to 11.244 um, and maximum water contact angle of 165.2°. Whereas beech and rosewood only reach the hydrophobic surface. Although the coatings demonstrated good resistance to water, pollutants, self-cleaning, and chemical agents, further improvements are necessary to enhance mechanical wear resistance.
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Affiliation(s)
- Xingzhou Yao
- College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, China; (X.Y.)
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Zhangqian Kong
- College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, China; (X.Y.)
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Feng Yang
- Beijing Institute of Fashion Technology, Fashion Accessory Art and Engineering College, Beijing 100029, China
| | - Xinyu Wu
- College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, China; (X.Y.)
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Yan Wu
- College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, China; (X.Y.)
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
- Correspondence:
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Adarraga O, Agustín-Sáenz C, Bustero I, Brusciotti F. Superhydrophobic and oleophobic microtextured aluminum surface with long durability under corrosive environment. Sci Rep 2023; 13:1737. [PMID: 36721001 PMCID: PMC9889307 DOI: 10.1038/s41598-023-28587-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 01/20/2023] [Indexed: 02/01/2023] Open
Abstract
Superhydrophobic (SHP) and oleophobic aluminum surfaces have been prepared through the combination of a scalable chemical microtexturing process and surface functionalization with long-chained polyfluoroalkyl moieties. The effect of an anodic layer on the microtextured surface has been assessed considering surface morphology, superhydrophobicity, surface mechanical properties and corrosion protection enhancement. The surface functionalization with polyfluoroalkyl moieties has been tackled in two different ways: (i) grafting of the polyfluoroalkyl moieties and (ii) deposition of a thin hybrid coating with low content of polyfluoroalkyl-containing compound. Aluminum surfaces showing high durability in salt spray environments, which maintain SHP and oleophobic properties at least up to 2016 h have been attained. Applications for this kind of surfaces range from easy-to-clean surfaces to anti-icing or anti-condensation functionalities that could be of interest for several sectors.
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Affiliation(s)
- Olatz Adarraga
- grid.13753.330000 0004 1764 7775TECNALIA, Basque Research and Technology Alliance (BRTA), Parque Científico Y Tecnológico de Gipuzkoa, Mikeletegi Pasealekua, 2, 20009 Donostia-San Sebastián, Spain
| | - Cecilia Agustín-Sáenz
- grid.13753.330000 0004 1764 7775TECNALIA, Basque Research and Technology Alliance (BRTA), Parque Científico Y Tecnológico de Gipuzkoa, Mikeletegi Pasealekua, 2, 20009 Donostia-San Sebastián, Spain
| | - Izaskun Bustero
- grid.13753.330000 0004 1764 7775TECNALIA, Basque Research and Technology Alliance (BRTA), Parque Científico Y Tecnológico de Gipuzkoa, Mikeletegi Pasealekua, 2, 20009 Donostia-San Sebastián, Spain
| | - Fabiola Brusciotti
- grid.13753.330000 0004 1764 7775TECNALIA, Basque Research and Technology Alliance (BRTA), Parque Científico Y Tecnológico de Gipuzkoa, Mikeletegi Pasealekua, 2, 20009 Donostia-San Sebastián, Spain
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