Nanoparticles for UV protection of clear wood coatings - field and laboratory trials / Stig L. Bardage in SURFACE COATINGS INTERNATIONAL, Vol. 96, 2 (04/2013)  

[article]  inSURFACE COATINGS INTERNATIONAL > Vol. 96, 2 (04/2013) . - p. 94-99 Titre : Nanoparticles for UV protection of clear wood coatings - field and laboratory trials Type de document : texte imprimé Auteurs : Stig L. Bardage ; M. Henriksson ; S. Olsson ; P. Collins ; D. Meng ; A. Ahniyaz ; E.-J. Salazar-Sandoval ; A. Rahier ; M. Gasparini ; N. Lamproye Année de publication : 2013 Article en page(s) : p. 94-99 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bois -- Revêtements protecteurs Dispersions et suspensions Essais accélérés (technologie) Evaluation Nanoparticules Protection contre le rayonnement ultraviolet Résistance au rayonnement ultraviolet Index. décimale : 667.9 Revêtements et enduits Résumé : Wood has long been a widely accepted material for both construction and decorative purposes, including joinery, furniture and decking. However, wood exposed to UV radiation is susceptible to photo-initiated degradation, due mainly to the chromophoric groups of lignin. Note de contenu : - Properties and selection of nanoparticles - Materials and characterisation tests - Preparation of panels - Natural and artificial weathering tests - Characterisation of nanoparticle dispersions - Characterisation of clear coating films - Evaluation of weathering tests En ligne : https://drive.google.com/file/d/1DXcvA9a73zEY1W2bHLHhsWsvanJdKhbL/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18389 [article]

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The role of tool/sheet contact in plug-assisted thermoforming / P. Collins in INTERNATIONAL POLYMER PROCESSING, Vol. XVII, N° 4 (12/2002)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. XVII, N° 4 (12/2002) . - p. 361-369 Titre : The role of tool/sheet contact in plug-assisted thermoforming Type de document : texte imprimé Auteurs : P. Collins, Auteur ; E. M. A. Harkin-Jones, Auteur ; P. J. Martin, Auteur Année de publication : 2002 Article en page(s) : p. 361-369 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 668.9 Polymères Résumé : Plug-assisted thermoforming produces a wide range of polymer products through a combination of deformation by air pressure and contact with tool surfaces. In this paper the role of tool/sheet contact in determining the process output is investigated. A combination of thermoforming, friction and heat transfer tests were carried out on common tool and sheet materials. The results show that the typical friction coefficients for the material combinations are within the range 0.1 to 0.3, but the values rise sharply on approaching thermoforming temperatures. Thermal imaging tests demonstrate that all of the plug materials significantly cool the heated sheet on contact, even over very short periods of time. The temperature of the plug is very important. At low plug temperatures heat transfer effects predominate, whereas at high plug temperatures friction effects predominate. A plug temperature of approximately 100°C balances these effects and creates the most effective material distribution. Note de contenu : - INTRODUCTION : Plug-assisted thermoforming - Process control - Thermoforming materials - Objectives - THERMOFORMING TESTS : Wall thickness distribution - Tool materials - Measurement of friction - Materials and methods - Results - Measurement of heat transfert - Thermal properties of tool materials - Test method - Results - Plugging tests - Test results DOI : 10.3139/217.1702 En ligne : https://drive.google.com/file/d/1wuvCG_6O04svfpmdPNOIbuQ3AE7_bG_n/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16040 [article]

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