UV-curable waterborne epoxy acrylate coating modified by monomethacryloyloxy-terminated fluorinated oligomer / Hongyi Shi in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 5 (09/2019)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 16, N° 5 (09/2019) . - p. 1305-1316 Titre : UV-curable waterborne epoxy acrylate coating modified by monomethacryloyloxy-terminated fluorinated oligomer Type de document : texte imprimé Auteurs : Hongyi Shi, Auteur ; Weiqu Liu, Auteur ; Chunhua Liu, Auteur ; Sha He, Auteur ; Chi Jiang, Auteur ; Zhengfang Wang, Auteur Année de publication : 2019 Article en page(s) : p. 1305-1316 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Copolymère époxy acrylate Emulsifiants Energie de surface Fluoropolymères Oligomères Polymères en émulsion Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- Additifs Revêtements organiques Index. décimale : 667.9 Revêtements et enduits Résumé : Monomethacryloyloxy-terminated fluorinated oligomers (PPFOMA-GMA and PHFBMA-GMA) and methyl allyl alcohol polyoxyethylene ether-modified epoxy resin (HPEGEA) were successfully synthesized and used as reactive additives and emulsifier for epoxy acrylate, respectively. FTIR, 1H NMR, and GPC were used to characterize the structures of PPFOMA-GMA, PHFBMA-GMA, and HPEGEA. The influence of the concentrations of PPFOMA-GMA and PHFBMA-GMA on the properties of waterborne epoxy acrylate (WEA) resin coatings was investigated. The surface energy of waterborne epoxy acrylate coating was decreased from 38.20 mN/m to 15.31 mN/m by adding just 0.21 wt% PPFOMA-GMA, indicating its high effectiveness in improving the hydrophobic properties of the surface. The surface compositions of the WEA resin coatings (with 0.85 wt% PPFOMA-GMA or 0.85 wt% PHFBMA-GMA) were characterized by XPS. The XPS results confirmed the quantitative enrichment of fluorine atoms on the surface. What is more, the physical properties of waterborne epoxy acrylate coatings prepared with different concentrations of fluorinated reactive additive, such as optical transmittance, adhesion (on glass, PET, and tinplate), pencil hardness, water absorption, and thermal properties, were also analyzed in detail. Hence, the waterborne epoxy acrylate coatings prepared with low concentrations of reactive additives were economical and have potential for large-scale industrial applications. Note de contenu : - EXPERIMENTAL : Materials -Synthesis of PPFOMA-GMA and PHFBMA-GMA - Synthesis of EA and HEPGEA - Preparation of UV-curable waterborne epoxy acrylate - Preparation of UV-curable waterborne epoxy acrylate coatings - Characterization - RESULT AND DISCUSSION : Chracterization of PHFBMA-GMA and PPFOMA-GMA, and HPEGEA - Surface properties of F0, F1, F2, F3, and F4 coating - Surface compositions of F1, F2, F3, and F4 coating - Pencil hardness, adhesion, and water absorption of F1, F2, F3, and F4 coating - Thermal properties of F1, F2, F3, and F4 coating - Optical properties of F1, F2, F3, and F4 coating DOI : 10.1007/s11998-019-00209-2 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-019-00209-2.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33013 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
21154	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Waterborne epoxy resins modified by reactive polyacrylate modifier with fluorinated side chains / Hongyi Shi in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 2 (03/2020)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 17, N° 2 (03/2020) . - p. 427-437 Titre : Waterborne epoxy resins modified by reactive polyacrylate modifier with fluorinated side chains Type de document : texte imprimé Auteurs : Hongyi Shi, Auteur ; Sha He, Auteur ; Lu Weiqu, Auteur ; Yankun Xie, Auteur ; Liyan Liang, Auteur ; Ke Pi, Auteur Année de publication : 2020 Article en page(s) : p. 427-437 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésion Chimie des surfaces Dispersions et suspensions Emulsifiants Energie de surface Epoxydes Essai Wolff-Wilborn Fluoropolymères Humidité -- Absorption:Eau -- Absorption Inversion de phase (chimie) Polyacrylates Polymères en émulsion Revêtements -- Propriétés thermiques Revêtements en phase aqueuse Revêtements organiques Souplesse (mécanique) Index. décimale : 667.9 Revêtements et enduits Résumé : Waterborne difunctional polyacrylate with long fluorinated side chains and epoxy groups (WALF) was successfully synthesized and used as emulsifier and reactive surface modifier for epoxy resin. The structure of WALF was characterized by FTIR and 1H NMR. In order to investigate the effect of the length and the content of the fluorinated side chains on the properties of the epoxy thermosets, a waterborne difunctional polyacrylate with short fluorinated side chains and epoxy groups (WASF) was developed as a contrast modifier. The waterborne epoxy emulsion modified by WALF or WASF was prepared through phase inversion method. Transmission electron microscopy (TEM) signified that the waterborne epoxy emulsion has a particle size range of 201.4–590.2 nm, indicating excellent water dispersion property. In addition, the surface properties, thermal properties, and mechanical properties of the waterborne epoxy coating were also analyzed in detail. Compared with WASF, the epoxy coating modified by WALF had higher surface fluorine atomic concentration, lower surface energy, and higher thermal stability. Note de contenu : - EXPERIMENTAL : Materials - Synthesis of fluorinated macronomer PHFBMA-GMA - Synthesis of WA, WALF, and WASF - Preparation of FWEA emulsion - Preparation of FWEA coating - Characterization - RESULTS AND DISCUSSION : Structure characterization of WALF - Average particle size and TEM of fluorinated waterborne epoxy–polyacrylate particles - Surface properties of FWEA coatings - Surface composition of FWEA coatings - Thermal properties of FWEA coatings - Pencil hardness, adhesion, flexibility, and water absorption of FWEA, FWEASF, and FWEALF coatings DOI : https://doi.org/10.1007/s11998-019-00288-1 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-019-00288-1.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33993 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
21658	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 2 / 2)