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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)

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inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 19, N° 1 (01/2022) . - p. 355–360

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 -- Additifs
Index. 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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