| Titre : |
Free radical copolymerization of trifluoroethyl methacrylate with perfluoroalkyl ethyl acrylates for superhydrophobic coating application |
| Type de document : |
texte imprimé |
| Auteurs : |
Mei Hu, Auteur ; Yabin Zhang, Auteur ; Umair Azhar, Auteur ; Luqing Zhang, Auteur ; Zizhao Chen, Auteur ; Chuanyong Zong, Auteur |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 611-719 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Analyse thermique
Angle de contact
Caractérisation
Copolymère méthacrylate de trifluoroéthyle et d'acrylate de perfluoroalkyle éthyle
Hydrophobie
Matériaux hybrides
Polyaddition
Revêtements organiques
Solutions de polymère
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The chemical constitution is a critical factor to the surface properties and the applications of polymers. In this paper, the random copolymers of trifluoroethyl methacrylate (FMA) and perfluoroalkyl ethyl acrylate (TEAc-8) with different feed molar ratios were synthesized by radical solution polymerization. The chemical structures of copolymers [poly(FMA-co-TEAc-8)] were characterized by FTIR, 1H NMR and 19F NMR. Thermogravimetric analysis and differential scanning calorimetry were performed to analyze thermal properties of copolymer. These copolymers demonstrated good thermal stability and lower glass transition temperature (Tg) by introducing the flexible perfluoroalkyl ethyl acrylate with long side chain. At the same time, the surface hydrophobicity of the prepared copolymer coatings was significantly improved, and the water contact angles could be raised to 117° when the molar ratios of TEAc-8 increased to 80%. Furthermore, superhydrophobic coatings were fabricated simply based on organic/inorganic hybrid. The water contact angle and the contact angle hysteresis of the composite coatings higher than 150° and lower than 5°, respectively, were achieved with blending of 2 wt% nano-silica. These superhydrophobic hybrid coatings have superb potential for large-scale and practical applications in self-cleaning and corrosion prevention owing to their simplicity in preparation. |
| Note de contenu : |
- EXPERIMENTAL MATERIALS AND METHODS : Materials - Synthesis of poly(FMA-co-TEAc-8) - Hydrophobic coatings preparation - Characterization
- RESULTS AND DISCUSSION : Structure characterization - Thermal analysis - Water contact angle |
| DOI : |
10.1007/s11998-018-00160-8 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-018-00160-8.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32584 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 16, N° 3 (05/2019) . - p. 611-719
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