[article]
| Titre : |
Preparation, characterization and properties of UV-curable waterborne polyurethane acrylate/siO2 coating |
| Type de document : |
texte imprimé |
| Auteurs : |
Qiu Fengxian, Auteur ; Heping Xu, Auteur ; Yingying Wang, Auteur ; Jicheng Xu, Auteur ; Dongya Yang, Auteur |
| Année de publication : |
2012 |
| Article en page(s) : |
p. 503-514 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Caractérisation
Dioxyde de silicium
Matériaux hybrides
Polyacrylates
Polyuréthanes
Revêtements -- Propriétés mécaniques:Peinture -- Propriétés mécaniques
Revêtements en phase aqueuse -- Séchage sous rayonnement ultraviolet:Peinture en phase aqueuse -- Séchage sous rayonnement ultraviolet
Sol-gel, Procédé
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The UV-curable waterborne polyurethane acrylate (UV-WPUA) oligomer was first prepared based on isophorone diisocyanate (IPDI), polyether polyol (NJ-220), dimethylol propionic acid (DMPA), and hydroxyethyl methyl acrylate (HEMA) via an in situ method. With the different content tetraethoxysilane (TEOS) and 3-glycidyloxypropyltrimethoxysilane (GLYMO) as coupling agents, a series of waterborne UV-WPUA/SiO2 oligomers were prepared by the sol–gel process. The physical and mechanical properties of the UV-WPUA and UV-WPUA/SiO2 hybrid coating materials were measured. The UV-WPUA and WPUA/SiO2 hybrid materials were characterized using FTIR spectra, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), scanning electron microscope (SEM), transmission electron microscope (TEM), and X-ray diffraction (XRD) measuring apparatuses to determine their structures, thermal properties, surface morphologies, etc. The results showed the SiO2 particles of the hybrid materials had wide dispersion, forming a good interfacial bonding layer on surfaces. The tensile strength, water resistance, and thermal properties of the hybrid materials were better than those of the UV-WPUA. The resulting UV-WPUA/SiO2 hybrids are promising for a number of applications, e.g., for high-performance water-based UV-curable coatings. |
| Note de contenu : |
- EXPERIMENTAL PROCEDURE : Materials - Preparation of UV-WPUA oligomer - Preparation of UV-WPUA/SiO2 hybrid oligomer - Preparation of UV-WPUA0 and UV-WPUA/SiO2 hybrid coating films - The apparent viscosity of UV-WPUA and hybrid oligomers - The particle size and polydispersity of UV-WPUA and hybrid oligomers - Structure characterization of the UV-WPUA and hybrid oligomers - The surface drying time of UV-WPUA0 and hybrid coatings films - The gel content of UV-WPUA0 and hybrid coating films - The hardness of UV-WPUA0 and hybrid coating films - The tensile strength and elongation at break of UV-WPUA0 and hybrid films - The water absorption (or swelling degree) of UV-WPUA0 and hybrid films - Thermal properties - SEM - TEM - XRD
- RESULTS AND DISCUSSION : The physical properties of UV-WPUA and hybrid oligomers - The mechanical properties of UV-WPUA0 and hybrid coating films - The water absorption (or swelling degree) of UV-WPUA0 and hybrid coating films - Structure characterization, thermal properties and morphology characterization of UV-WPUA0 and hybrids |
| DOI : |
10.1007/s11998-012-9397-7 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007/s11998-012-9397-7.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16011 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 9, N° 5 (09/2012) . - p. 503-514
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