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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]
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 thermiqueIndex. 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 systemsNote de contenu : - MATERIALS AND METHODS : Material - Material characteristics - Coating performance
- RESULTS AND DISCUSSION : Characteristics of thermally modified wood as a substrate - Microscopic observations - AdhesionDOI : 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 : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28563
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 14, N° 3 (05/2017) . - p. 531-541[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18899 - Périodique Bibliothèque principale Documentaires Disponible Traitements thermiques : recommandations pour limiter l'exposition aux HAP / Catherine Champmartin in HYGIENE & SECURITE DU TRAVAIL, N° 239 (04-05-06/2015)
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Titre : Traitements thermiques : recommandations pour limiter l'exposition aux HAP Type de document : texte imprimé Auteurs : Catherine Champmartin, Auteur ; Fanny Jeandel, Auteur ; Hubert Monnier, Auteur Année de publication : 2015 Article en page(s) : p. 60-65 Note générale : Bibliogr. Langues : Français (fre) Catégories : Cancérogènes
Equipement de protection individuelle
Hygiène du travail
Maladies professionnelles -- Prévention
Risques pour la santé
Traitement thermique
Travailleurs -- ProtectionIndex. décimale : 671.3 Traitement mécanique : laminage, forgeage, tréfilage, usinage, traitement thermique Résumé : Parce qu'ils génèrent des composés cancérogènes, certains procédés de traitements thermiques doivent faire l'objet d'action de prévention spécifiques. A l'issue de plusieurs campagnes de mesures réalisées par l'INRS pour mieux comprendre les conditions d'exposition des opérateurs, des recommandations de bonnes pratiques ont été identifiées. Objectif : aider les industriels et surtout les acteurs de la prévention à agir. En ligne : http://www.hst.fr/inrs-pub/inrs01.nsf/IntranetObject-accesParReference/HST_NT%20 [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24602
in HYGIENE & SECURITE DU TRAVAIL > N° 239 (04-05-06/2015) . - p. 60-65[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17462 - Périodique Bibliothèque principale Documentaires Disponible 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)
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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 surfaceIndex. 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 : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3662
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Code-barres Cote Support Localisation Section Disponibilité 008269 - Périodique Bibliothèque principale Documentaires Disponible Wetting metamorphosis of hydrophobic fluoropolymer coatings submerged in water and ultrasonically vibrated / Matthew Trapuzzano in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 3 (05-06/2020)
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Titre : Wetting metamorphosis of hydrophobic fluoropolymer coatings submerged in water and ultrasonically vibrated Type de document : texte imprimé Auteurs : Matthew Trapuzzano, Auteur ; Nathan B. Crane, Auteur ; Rasim Guldiken, Auteur ; Andrés Tejada-Martinez, Auteur Année de publication : 2020 Article en page(s) : p. 633–642 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Angle de contact
Caractérisation
Fluoropolymères
Hydrophobie
HystérésisL'hystérésis (ou hystérèse) et signifiant "après" ou "plus tard", est la propriété d'un système qui tend à demeurer dans un certain état quand la cause extérieure qui a produit le changement d'état a cessé.
Immersion
Mouillage (chimie des surfaces)
Revêtements organiques
Traitement thermique
UltrasonsIndex. décimale : 667.9 Revêtements et enduits Résumé : Many important processes—from the manufacturing of integrated circuit boards to an insect’s ability to walk on water—depend on the wetting of liquids on surfaces. Wetting is commonly controlled through material selection, coatings, and/or surface texture. However, wetting is sensitive to environmental conditions. In particular, some hydrophobic fluoropolymer coatings are sensitive to extended water exposure as evidenced by a declining contact angle and increasing contact angle hysteresis. Understanding “degradation” of these coatings is critical to applications that deploy them. The durability of a series of fluoropolymer coatings was tested by measuring the water contact angle before, during, and after extended submersion of coated glass slides in a deionized water bath. Vibration was introduced as a potential method for expediting the effects of long-term water exposure, so similar measurements were taken before, during, and after the same coatings were subject to ultrasonic vibration while covered in deionized water. Both methods caused changes in advancing and receding contact angles, but degradation rates of vibrated coatings were significantly increased. Prolonged soaking caused significant decreases in the contact angle of most of the samples, though most experienced significant recovery of hydrophobicity when heat-treated at 160°C after submersion. Some coatings appeared noticeably more resistant to degradation by one or both methods. FluoroSyl showed no clear change under submersion, while other coatings experienced significant contact angle change. Degradation of vibrated coatings was also inconsistent among coatings and was not simply an acceleration of the degradation resulting from submerging coatings in water. This was apparent as some coatings were affected by one method but not the other. Atomic force microscopy was utilized to characterize the surface roughness of the coatings and revealed differing surface effects for different coatings after submersion and heat treatment. However, the magnitude of this roughness change was insufficient to fully explain the wetting changes. The rate of contact angle degradation was not altered significantly for coatings that were vibrated with acceleration magnitudes between 700 and 7000 g. Note de contenu : - Submersion of coatings
- Heat treatment of submerged coatings
- Comparison of ultrasonically vibrated wet coatingsDOI : https://doi.org/10.1007/s11998-019-00250-1 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-019-00250-1.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34095
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Code-barres Cote Support Localisation Section Disponibilité 21734 - Périodique Bibliothèque principale Documentaires Disponible Withstanding the heat in KUNSTSTOFFE INTERNATIONAL, Vol. 98, N° 9/2008 (09/2008)
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Titre : Withstanding the heat Type de document : texte imprimé Année de publication : 2008 Article en page(s) : p. 95-96 Langues : Anglais (eng) Catégories : Electricité
Electronique
Matières plastiques
Polymères -- Propriétés thermiques
Traitement thermiqueIndex. décimale : 668.4 Plastiques, vinyles Résumé : Electrics/electronics - The second meeting concerned with “plastics in electrics and electronics applications” was themed “Fuse-box Meets Dryer”, again. Applications may differ significantly – yet demands on plastics are often the same, whether in household appliances or in automobile electrics. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3771
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Code-barres Cote Support Localisation Section Disponibilité 010699 - Périodique Bibliothèque principale Documentaires Disponible