| Titre : |
Fabrication and properties of polysilsesquioxane-based trilayer core–shell structure latex coatings with fluorinated polyacrylate and silica nanocomposite as the shell layer |
| Type de document : |
texte imprimé |
| Auteurs : |
Jiawei Li, Auteur ; Shenjie Zhong, Auteur ; Wiaojie Yan ; Weixiang Li ; Lingmin Yi |
| Année de publication : |
2018 |
| Article en page(s) : |
p. 1077-1088 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Core-Shell
Couches minces
Dioxyde de silicium
Fluoropolymères
Fourier, Spectroscopie infrarouge à transformée de
Granulométrie
Humidité -- Absorption:Eau -- Absorption
Hydrophobie
Latex
Mesure
Microscopie à force atomique
Morphologie (matériaux)
Mouillabilité
Nanoparticules
Polyacrylates
Polymères -- Synthèse
Stabilité thermique
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Polysilsesquioxanes (PSQ)-based core–shell fluorinated polyacrylate/silica hybrid latex coatings were synthesized with PSQ latex particles as the seeds, and methyl methacrylate, butyl acrylate, 3-(trimethoxysilyl) propyl methacrylate (MPS)-modified SiO2 nanoparticles (NPs), 1H,1H,2H,2H-perfluorooctyl methacrylate (PFOMA) as the shell monomers by emulsifier-free miniemulsion polymerization. The results of Fourier transform IR spectroscopy, transmission electron microscopy, and dynamic light scattering suggested the obtained hybrid particles emerged with trilayer core–shell pattern. Contact angle analysis, x-ray photoelectron spectroscopy, and atom force microscopy results indicated that the hybrid film containing SiO2 NPs showed higher hydrophobicity, lower surface free energy and water absorption, in comparison with the control system (without SiO2 NPs). Compared with the control system, the hybrid latex film containing SiO2 NPs in the fluorinated polyacrylate shell layer showed the higher content of fluorine atoms and a rougher morphology on the film surface. Additionally, thermogravimetric analysis demonstrated the enhanced thermostability of PSQ-based nanosilica composite fluorinated polyacrylate latex film. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Synthesis of core-shell fluorinated polyacrylate/SiO2 NPs hybrid latex - Preparation of the latex film - Application of hybrid latex on fabrics - Measurements
- RESULTS AND DISCUSSION : FTIR analysis - Particle morphologies and particle size of latexes - Surface property of latex films - Water absorption of latex fims - Surface wettability of the modified fabrics - XPS and AFM analysis - Thermal stability of latex films |
| DOI : |
10.1007/s11998-018-0044-9 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-018-0044-9.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31136 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 15, N° 5 (09/2018) . - p. 1077-1088
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