A facile approach to fabricate superhydrophobic coatings on porous surfaces using cross-linkable fluorinated emulsions
| Autor: | Xue Yin, Wang Nachuan, Chuang-Chao Sun, Liping Zhu, You-Zhi Song, Bao-Ku Zhu, Bin Zhang |
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| Rok vydání: | 2017 |
| Předmět: |
Sulfonyl
chemistry.chemical_classification Materials science General Chemical Engineering Glass fiber 02 engineering and technology General Chemistry engineering.material Porous glass 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Industrial and Manufacturing Engineering 0104 chemical sciences Contact angle Chemical engineering Coating chemistry Emulsion Polymer chemistry engineering Environmental Chemistry Fiber 0210 nano-technology Porosity |
| Zdroj: | Chemical Engineering Journal. 330:202-212 |
| ISSN: | 1385-8947 |
| DOI: | 10.1016/j.cej.2017.06.145 |
| Popis: | Superhydrophobic surfaces with high water contact angles and low slide angles have drawn worldwide attention for their excellent water resistance, anti-contamination, and self-cleaning property. Herein, hydrophobic coatings were facilely fabricated on porous glass fiber nonwoven mats through immersing the substrates in a highly fluorinated emulsion, which was prepared with cross-linkable sulfonyl macro emulsifiers. The superhydrophobic properties and the long term stability of porous glass fiber mats were optimized by incorporating the synthesized emulsion and cross-linking agents, Melcross 03, together into the coating process. Notably, the superhydrophobicity of modified glass fibers can be ascribed to the surface enrichment of fluorine and lack of migration from reacted polar sulfonyl groups. As a result, the largest water contact angle of the coated glass fiber obtained is 151.4° and the smallest slide angle measured is only 3.9°, exhibiting superior water repellency to other fluorinated emulsion coatings. Moreover, the great anti-fouling properties and water/oil separation performance suggest that the facile method is promising for varied applications. |
| Databáze: | OpenAIRE |
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