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Preparation and properties of UV-cured epoxy acrylate/glycidyl-POSS coatings / Ying Wang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 3 (05/2017)

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inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 14, N° 3 (05/2017) . - p. 665-672

Titre :	Preparation and properties of UV-cured epoxy acrylate/glycidyl-POSS coatings
Type de document :	texte imprimé
Auteurs :	Ying Wang, Auteur ; Fengguo Liu, Auteur ; Xiangxin Xue, Auteur
Année de publication :	2017
Article en page(s) :	p. 665-672
Note générale :	Bibliogr.
Langues :	Américain (ame)
Catégories :	Copolymère époxy acrylate Matériaux hybrides Photoréticulation Revêtements -- Propriétés mécaniques:Peinture -- Propriétés mécaniques Revêtements -- Séchage sous rayonnement ultraviolet:Peinture -- Séchage sous rayonnement ultraviolet Silsesquioxanes oligomères polyhèdres Stabilité thermique
Index. décimale :	667.9 Revêtements et enduits
Résumé :	Epoxy acrylate (EA)/glycidyl-polyhedral oligomeric silsesquioxane (G-POSS) nanocomposites were synthesized via in situ ultraviolet initiated polymerization. XRD analysis indicates that G-POSS and EA are miscible and can form uniform composites. SEM micrographs show that the G-POSS particles (<500 nm in diameter) disperse uniformly in the polymer matrix. The EA/G-POSS nanocomposites exhibit heterogeneous morphology. FTIR analysis confirms the curing reaction is quite complete, and there are no chemical reactions between G-POSS and EA during the UV-curing process. The carbon–carbon double-bond conversion vs time profiles confirm that the addition of G-POSS improves the UV-curing rates of nanocomposites. The glass transition temperature (Tg) of nanocomposites were obtained by DMA. Tg reaches to the maximum at the loading of 1 wt% and then decreases with the increasing G-POSS loadings. The thermal stability, impact resistance, and flexibility of nanocomposites are all enhanced by the incorporation of G-POSS.
Note de contenu :	- EXPERIMENTAL : Materials - Sample preparation - Characterizations - RESULTS AND DISCUSSION : XRD analysis - Morphological analysis - FTIR - UV-curing process - Dynamic mechanical properties (DMA) - Thermal gravimetric analysis (TGA) - Mechanical properties
DOI :	10.1007/s11998-016-9886-1
En ligne :	https://link.springer.com/content/pdf/10.1007%2Fs11998-016-9886-1.pdf
Format de la ressource électronique :	Pdf
Permalink :	https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28574

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