Titre : |
The preparation of hydrophobic hybrid film coatings from siloxane-modified polyacrylate associated with nano-fumed silica and organo-modified clay |
Type de document : |
texte imprimé |
Auteurs : |
Weepol Pramualkijja, Auteur ; Nantana Jiratumnukul, Auteur |
Année de publication : |
2022 |
Article en page(s) : |
p. 1467-1492 |
Note générale : |
Bibliogr. |
Langues : |
Américain (ame) |
Catégories : |
Adhésion Angle de contact Angle de glissement Argile Caractérisation Dispersions et suspensions Hydrophobie Matériaux hybrides Morphologie (matériaux) Polyacrylates Polymères modifiés siloxane Revêtements organiques Rugosité Structure chimique
|
Index. décimale : |
667.9 Revêtements et enduits |
Résumé : |
Superhydrophobic hybrid film coatings were prepared from the dispersions of siloxane-modified polyacrylate associated with organo-modified clay (OMC-20A) and hydrophobic-fumed silica (FS-H15) coated on glass and cement boards by a dipping process. The hydrophobicity, surface morphology, surface energy, and surface roughness of the obtained hybrid film coatings (HBFCs) were investigated. The results showed that the hydrophobicity of the obtained HBFCs was related to surface roughness and the roughness profile of the surface. HBFCs obtained using 10 phr OMC-20A with 35 phr FS-H15 in hybrid coatings and fabricated by four dipping provided high roughness surfaces (Rq) at 546.67 nm with a micro-nano-binary structure and a low surface energy at 2.35 mN/m leading to superhydrophobic surfaces on the coated glass and cement boards demonstrating 151.34° and 150.88° water contact angles, respectively. As a result, these HBFCs coated on cement board performed great water repellent and self-cleaning. |
Note de contenu : |
- Experimental : Materials
- Preparation of SMPA
- Preparation of the HCs
- Fabrication of the HBFCs
- Characterization
- Results and discussion : SMPA dispersions - Hydrophobicity related with adhesion and hardness - Surface morphology - The chemical structure of HBFCs - Surface energy - Surface roughness and profile of roughness
- Effect of porous substrates : The water contact angle, water repellent and self-cleaning - The durability
- Table 1 : Recipes of the different HC1s
- Table 2 : Recipes of the different HC2s
- Table 3 : Adhesion of the HBFCs
- Table 4 : The sliding angle of HBFC1 and 2s
- Table 5 : The water, EG and glycerol contact angles of the different HCs |
DOI : |
https://doi.org/10.1007/s11998-022-00621-1 |
En ligne : |
https://link.springer.com/content/pdf/10.1007/s11998-022-00621-1.pdf |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38284 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 19, N° 5 (09/2022) . - p. 1467-1492