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Antibacterial and antifungal properties of clear coating film containing silver-cytokinin complex as a filler / Fumihiko Ohashi in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 6 (11/2020)
[article]
Titre : Antibacterial and antifungal properties of clear coating film containing silver-cytokinin complex as a filler Type de document : texte imprimé Auteurs : Fumihiko Ohashi, Auteur ; Atsushi Shibahara, Auteur Année de publication : 2020 Article en page(s) : p. 1619-1623 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Antimicrobiens
Argent
Caractérisation
Charges (matériaux)
CytokinineLes cytokinines sont des substances proches des bases puriques (adénines substituées). C'est une famille de phytohormones indispensables au développement de la plante tout comme l'auxine, ayant fonction d'hormones chez les végétaux. (Wikipedia)
Nanoparticules
Revêtements en phase aqueuse:Peinture en phase aqueuseIndex. décimale : 667.9 Revêtements et enduits Résumé : A silver-cytokinin complex filler was synthesized by a mild thermal process; then, the complex was mixed with an aqueous emulsion paint as an antimicrobial filler. Coating films were prepared by a typical method using 0.254 mm applicator. The results of antibacterial activity measurements indicated that the films exhibited strong activities against Escherichia coli and Staphylococcus aureus. Values of the antibacterial activity (n = 3) were 5.7 and 4.9, respectively. As for the mixture of five kinds of fungi, after cultivation (n = 5), no colony growth on the film surface was observed by microscopy. From the appearance of the film surfaces, it was revealed that the silver–cytokinin complex filler for emulsion paints possessed better paintability and transparency compared to a commercialized paint filler. Note de contenu : - Preparation of coating films
- CharacterizationDOI : https://doi.org/10.1007/s11998-020-00399-0 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-020-00399-0.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34965
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 17, N° 6 (11/2020) . - p. 1619-1623[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22458 - Périodique Bibliothèque principale Documentaires Disponible Effect of structure-controlled aluminum silicate nanofiller on surface properties of emulsion coating films / Fumihiko Ohashi in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 1 (01/2022)
[article]
Titre : Effect of structure-controlled aluminum silicate nanofiller on surface properties of emulsion coating films Type de document : texte imprimé Auteurs : Fumihiko Ohashi, Auteur ; Kenji Arai, Auteur ; Atsushi Shibahara, Auteur Année de publication : 2022 Article en page(s) : p. 355–360 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation
Charges (matériaux)
Essais accélérés (technologie)
Mouillabilité
Nanoparticules
Revêtements antisalissures
Revêtements en phase aqueuse -- Additifs
Silicate d'aluminium
Vernis en phase aqueuse -- AdditifsIndex. décimale : 667.9 Revêtements et enduits Résumé : A non-crystalline aluminum silicate related to allophane (i.e., clay mineral) was synthesized by a hydrothermal reaction after which the synthetic mineral was mixed with clear or multicolored aqueous emulsion paint as a nanofiller. The nanofiller was revealed by X-ray diffraction to have an amorphous morphology, showed a narrow particle size distribution with a volume mean diameter of 1.2 µm and indicated a specific surface area of 228 m2/g. Clear films prepared with the nanofiller had significantly improved wettability compared to a blank film. The results of outdoor exposure tests exhibited that multicolored films with the nanofiller showed higher antifouling ability than films with a commercially available silica filler. A proposed antifouling mechanism is that the proportion of Si-OH and Al-OH active sites exposed on the nanofiller surface had a significant effect on the surface wettability of the films and exquisitely controlled the sliding of rain droplets. Note de contenu : - Preparation of nanofiller
- Preparation of clear film
- Preparation of multicolored film
- Characterization
- Table 1 : Characteristic data of the nanofiller-contained clear films
- Table 2 : Outdoor exposure tests of the nanofiller-contained multicolored films (2.5 months)
- Table 3 : Outdoor exposure tests of the nanofiller-contained multicolored films and references (6 months)DOI : https://doi.org/10.1007/s11998-021-00541-6 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-021-00541-6.pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37164
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Code-barres Cote Support Localisation Section Disponibilité 23313 - Périodique Bibliothèque principale Documentaires Disponible