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Surface properties of tannin-impregnated and varnished beech wood after exposure to accelerated weathering / Mesut Yalcin in COLORATION TECHNOLOGY, Vol. 133, N° 4 (08/2017)
[article]
Titre : Surface properties of tannin-impregnated and varnished beech wood after exposure to accelerated weathering Type de document : texte imprimé Auteurs : Mesut Yalcin, Auteur ; Huseyin Pelit, Auteur ; Caglar Akcay, Auteur ; Nevzat Cakicier, Auteur Année de publication : 2017 Article en page(s) : p. 334-340 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse des données
Bois -- Effets du climat
Bois -- Vernis
Colorimétrie
Décoloration
Dureté (matériaux)
Essais accélérés (technologie)
Evaluation
Hêtre
Laine
Matériaux -- Imprégnation
Résistance à l'abrasion
Solutions aqueuses (chimie)
Tanins végétauxIndex. décimale : 667.3 Teinture et impression des tissus Résumé : The aim of this study was to determine selected surface properties of varnished beech wood impregnated with natural extracts after exposure to accelerated weathering. Beech wood samples were impregnated with aqueous solutions of 5 and 10% mimosa (Acacia mollissima) and quebracho (Shinopsis lorentzii) tannins. After weathering, colour changes (?L*, ?a*, ?b*, and ?E*) in addition to scratch resistance and surface hardness values were calculated and evaluated. As a result of the weathering process, greater colour changes (?E*) were detected in the beech wood samples impregnated with tannins compared with the unimpregnated control samples. The least colour change occurred in the Tanalith-E-impregnated samples. Total colour change was adversely affected with tannin impregnation after the weathering processes. In terms of surface hardness and scratch resistance, the highest values were observed in the mimosa-solution-impregnated and control samples. Furthermore, it was found that scratch resistance and hardness values tended to increase during the first period of weathering and decreased thereafter. Regarding surface properties, the best results were obtained when polyurethane varnish was employed compared with the other varnish types. Note de contenu : - EXPERIMENTAL : Wool samples, impregnation, coating, and accelerated weathering - Scratch resistance - Surface hardness - Colour measurements - Data analysis
- RESULTS AND DISCUSSION : Colour changes - Scratch resistance - Surface hardnessDOI : 10.1111/cote.12287 En ligne : https://drive.google.com/file/d/17M6JGQk8pc23daH_js4uXRK1Ti4ON6FR/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28887
in COLORATION TECHNOLOGY > Vol. 133, N° 4 (08/2017) . - p. 334-340[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19175 - Périodique Bibliothèque principale Documentaires Disponible Thermal conductivity of oriental beech impregnated with fire retardant / Seref Kurt in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 6, N° 4 (12/2009)
[article]
Titre : Thermal conductivity of oriental beech impregnated with fire retardant Type de document : texte imprimé Auteurs : Seref Kurt, Auteur ; Burhanettin Uysal, Auteur ; Cemal Özcan, Auteur Année de publication : 2009 Article en page(s) : p. 523-530 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Hêtre
IgnifugeantsComposé chimique utilisé pour réduire l'inflammabilité. Il peut être incorporé au produit durant sa fabrication ou appliqué ultérieurement à sa surface.
Revêtements:Peinture
Thermocinétique
VernisIndex. décimale : 667.9 Revêtements et enduits Résumé : This study aims to describe the effects of wood material (oriental beech) impregnated with ammonium sulfate, borax, boric acid, and zinc chloride by using two different methods (pressure and dipping) and finishes with the effects of different varnishes (polyurethane, cellulosic, synthetic) and paints (cellulosic, synthetic, industrial) on thermal conductivity. These materials were used as fire retardants. The lowest thermal conductivity of 0.143 kcal/m h°C was obtained in oriental beech control samples. The highest thermal conductivity of 0.172 kcal/m h°C was obtained in oriental beech impregnated with ammonium sulfate by using pressure and varnished with synthetic varnish. Consequently, wood impregnated with ammonium sulfate by using pressure and finished with synthetic varnish can be used as a construction material where thermal conductivity is required. Wood impregnated with borax by dipping and finished with cellulosic varnish can be used as a construction material where the insulation is required. DOI : 10.1007/s11998-008-9158-9 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-008-9158-9.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7696
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 6, N° 4 (12/2009) . - p. 523-530[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011845 - Périodique Bibliothèque principale Documentaires Disponible