Novel water-borne UV-curable dispersion in EUROPEAN COATINGS JOURNAL (ECJ), (06/2024)  

[article]  inEUROPEAN COATINGS JOURNAL (ECJ) > (06/2024) . - p. 28-33 Titre : Novel water-borne UV-curable dispersion : High-performance, UV-curable dispersion to be used as such or as a booster Type de document : texte imprimé Année de publication : 2024 Article en page(s) : p. 28-33 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bois -- Revêtements Formulation (Génie chimique) Hêtre Photoréticulation Polyacryliques Polyuréthanes Résistance chimique Revêtements en phase aqueuse -- Séchage sous rayonnement ultraviolet Revêtements organiques Index. décimale : 667.9 Revêtements et enduits Résumé : Radiation curing is a technology that is increasingly being used in industrial wood coatings as an environmentally friendly solution with high-performance, high productivity and energy efficient outcomes. We introduce a new UV-curable polyurethane dispersion that allows the transformation of a standard air-curing water-borne (WB) system into a radiation-curing solution, thus improving both performance and productivity. Note de contenu : - Development of a new high-performance UV-curing polyurethand dispersion - Properties of the new high-performance UV-curable dispersion - Performance in combination with conventional 1K wb acrylic dispersion - Performance in dual-cure systems - Enhancing properties of an UV dispersion - Table 1 : Chemical resistances of the new UV PUD according to DIN 12720 as performed on applied beech veneer. 5 : best, no detectable change - Table 2 : Typical formulation of a clear and a white pigmented coating to test the effect of adding 30 % of the new UV PUD. The amount of cosolvent used will depend on the acrylic dispersion used and its MFFT En ligne : https://drive.google.com/file/d/1uFGf-qVpcqqeR36On9G9k3zySDs3k32C/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41101 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
24698	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Surface properties of oriental beech wood coated with vegetable oil-based epoxide-amin nanocomposite materials after weathering / Yahya Kabasakal in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 21, N° 3 (05/2024)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 21, N° 3 (05/2024) . - p. 925-938 Titre : Surface properties of oriental beech wood coated with vegetable oil-based epoxide-amin nanocomposite materials after weathering Type de document : texte imprimé Auteurs : Yahya Kabasakal, Auteur ; Ilknur Babahan-Bircan, Auteur ; Ergun Baysal, Auteur ; Caglar Altay, Auteur ; Hilmi Toker, Auteur Année de publication : 2024 Article en page(s) : p. 925-938 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Brillance (optique) Composites Corrosion par érosion Couleur Enrobage (technologie) Epoxy amine Hêtre Nanoparticules Nanotubes Revêtements organiques Rugosité Surfaces (Physique) Index. décimale : 667.9 Revêtements et enduits Résumé : This work examined the changes in surface characteristics of Oriental beech (Fagus orientalis L.) covered with vegetable oil-based epoxide-amine (ETO + D230) and its nanocomposite derivatives Epoxy + amine + carbon nanotube (ETO + D230 + C), Epoxy + amine + fullerene (ETO + D230 + F), and Epoxy + amine + graphene (ETO + D230 + G) doped with carbon nanoparticles following weathering. Results showed that while all coated groups displayed good lightness stability following weathering, the non-coated (control) group produced negative lightness stability values. The coated Oriental beech had greater overall color stability than the uncoated (control) group. The specimens coated with ETO + D230 + C nanocomposite exhibited the best color stability. All uncoated and coated specimens produced negative a* and positive b* values, indicating a propensity to turn greenish or yellowish after weathering, respectively. After weathering, while the surface roughness values of all specimens increased, their gloss decreased. In addition, after weathering, all coated samples had less gloss loss and lower surface roughness than the control group. Our findings show that following weathering, Oriental beech coated with ETO + D230 + C, ETO + D230 + F, and ETO + D230 + G nanocomposites have better surface properties than ETO + D230-coated Oriental beech. Note de contenu : - MATERIALS AND METHODS : Experimental - Methods - Preparation of epoxide-amine coatings - Preparation of epoxide-nanocomposite coatings - Preparation of wood - Color test - Gloss test - Surface roughness test - Weathering test - RESULTS AND DISCUSSION : Color - Gloss test - Surface roughness DOI : https://doi.org/10.1007/s11998-023-00860-w En ligne : https://link.springer.com/content/pdf/10.1007/s11998-023-00860-w.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41067 [article]

Réservation

Réserver ce document

Exemplaires (2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
24737	-	Périodique	Bibliothèque principale	Documentaires	Disponible
24688	-	Périodique	Bibliothèque principale	Documentaires	Disponible

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]  inCOLORATION TECHNOLOGY > Vol. 133, N° 4 (08/2017) . - p. 334-340 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 végétaux Index. 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 hardness DOI : 10.1111/cote.12287 En ligne : https://drive.google.com/file/d/17M6JGQk8pc23daH_js4uXRK1Ti4ON6FR/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28887 [article]

Réservation

Réserver ce document

Exemplaires (1)

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]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 6, N° 4 (12/2009) . - p. 523-530 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 Ignifugeants Composé chimique utilisé pour réduire l'inflammabilité. Il peut être incorporé au produit durant sa fabrication ou appliqué ultérieurement à sa surface. Revêtements:Peinture Thermocinétique Vernis Index. 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 : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7696 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
011845	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 4 / 4)