Rheological approach to the capillary penetration of coating into wood / Mari de Meijer in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 73, N° 914 (03/2001)

[article]  inJOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 73, N° 914 (03/2001) . - p. 39-51 Titre : Rheological approach to the capillary penetration of coating into wood Type de document : texte imprimé Auteurs : Mari de Meijer, Auteur ; Barend van de Velde, Auteur ; Holger Militz, Auteur Année de publication : 2001 Article en page(s) : p. 39-51 Note générale : Bibliogr. Langues : Américain (ame) Tags : Matériau  revêtement  Peinture  Vernis  Bois  Protection  Liant  Polymère  Pénétration  Tube  capillaire  Propriété  surface  Mouillage  Tension  superficielle  rhéologique  Eau  Solvant  organique  Evaporation  Agent  Modélisation  Etude  expérimentale Index. décimale : 667.9 Revêtements et enduits Résumé : The penetration of water- and solvent-borne binders into the capillaries of wood was studied as a function of the viscosity, surface tension, and capillary pressure according to the Washburn equation. During the penetration, water is selectively removed from the coating, which causes a strong increase in viscosity that limits the penetration. Water-borne dispersions and emulsions showed a rapid increase in viscosity with increasing solid matter content. Surface tension of the binder and the adsorption of surfactants to the wood have an additional influence on the maximum penetration Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5721 [article]

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Thermally modified Scots pine and Norway spruce wood as substrate for coating systems / Michael Altgen in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 3 (05/2017)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 14, N° 3 (05/2017) . - p. 531-541 Titre : Thermally modified Scots pine and Norway spruce wood as substrate for coating systems Type de document : texte imprimé Auteurs : Michael Altgen, Auteur ; Holger Militz, Auteur Année de publication : 2017 Article en page(s) : p. 531-541 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Pins et constituants Polyacrylates Polyalkydes Revêtement en phase solvant:Peinture en phase solvant Revêtements en phase aqueuse:Peinture en phase aqueuse Traitement thermique Index. décimale : 667.9 Revêtements et enduits Résumé : Thermally modified wood (TMW) is increasingly used in exterior applications as an alternative to tropical hardwoods or wood impregnated with biocides. Despite its enhanced biological durability and dimensional stability, a surface treatment of TMW with coating systems can be required in certain applications. This study assessed material characteristics of Norway spruce and Scots pine wood that was thermally modified according to the ThermoWood® process and their effect on the performance of commercially available coating systems: a solventborne oil, a waterborne alkyd-reinforced acrylate paint and a waterborne acrylate paint. Residual extractives and remaining degradation products found in TMW, carry the risk of causing discoloration or of interfering with the curing reactions of coating systems. The penetration of coating systems into TMW was not found to differ from unmodified wood, although an excessive penetration of solventborne oil was found occasionally for TMW. The adhesion strength of waterborne coatings depended on the system that was used. While one system performed sufficiently on TMW, the other coating systems showed a considerable reduction in adhesion strength already after a mild treatment (<200°C). This reduction could not be attributed to the increase in hydrophobicity of TMW that was evident from contact angle measurements, but was rather related to the mechanical interaction of the specific substrate/coating system. Keywords Adhesion strength Material characteristics Coating penetration Solventborne oil Waterborne coating systems Note de contenu : - MATERIALS AND METHODS : Material - Material characteristics - Coating performance - RESULTS AND DISCUSSION : Characteristics of thermally modified wood as a substrate - Microscopic observations - Adhesion DOI : 10.1007/s11998-016-9871-8 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-016-9871-8.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28563 [article]

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Wettability of waterborne coatings on chemically and thermally modified pine wood / Marko Petric in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 4, N° 2 (06/2007)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 4, N° 2 (06/2007) . - p. 203-206 Titre : Wettability of waterborne coatings on chemically and thermally modified pine wood Type de document : texte imprimé Auteurs : Marko Petric, Auteur ; Christian Welzbacher, Auteur ; Miro Tomazic, Auteur ; Andreas Rapp, Auteur ; Mathieu Pétrissans, Auteur ; Matjaz Pavlic, Auteur ; Holger Militz, Auteur ; Andreas Krause, Auteur ; Brane Knehtl, Auteur ; Philippe Gérardin, Auteur Année de publication : 2007 Article en page(s) : p. 203-206 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésion Applications extérieures Bois -- Revêtements protecteurs Mouillabilité Mouillage (chimie des surfaces) Pins et constituants Polyacrylates Revêtements en phase aqueuse:Peinture en phase aqueuse Traitement thermique Traîtements de surface Index. décimale : 667.9 Revêtements et enduits Résumé : Modification of wood can change its hydro- ] philic character. Consequently, modified wettability of wood can change its behavior with coating or gluing processes. The authors investigated the wettability of oil-heat-treated and DMDHEU-modified Scots pine wood with some commercial waterborne coatings. The increased hydrophobic character of modified wood was revealed from high advancing contact angles of water. In contrast, exterior waterborne coatings exhibited much better wetting on modified substrates than on unmodified substrates. Good wetting of modified wood by waterborne coatings is an interesting result, opening up possibilities for application of environmentally friendly waterborne surface systems on modified wood. DOI : 10.1007/s11998-007-9023-2 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-007-9023-2.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3662 [article]

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