Les finitions poudres appliquées sur le bois et matériaux dérivés : optimisation du procédé industriel, étude des relations finition/substrat et fonctionnalisation

Abstract : Powder coatings, successfully used in the metal industry, represent today an alternative to the systems currently used for wooden substrates. This technology allows first to respond to the needs of manufacturers of furniture and carpentry as it is in perfect agreement with the European Directive 1999/13/EEC on the reduction of VOC emissions. In addition, the arrival on the market of thermosetting formulations at low temperature or UV polymerization allows to apply this technology to heat-sensitive substrates such as wood and derivates. Currently, powder coating gives very good results in terms of quality on the fiberboard (MDF). Other promising results have also been obtained on plywood or solid beech. Study the factors influencing the process, in particular the nature of the substrate and its preparation, powdering and baking settings are the main objectives to optimize this process on an industrial scale. Furthermore, interactions substrate-powder coating, in addition to the chemical characteristics of resins, seem to define the final quality of the system and its durability against aging. An additional axis of the study is to verify the possible functionalization of powder coatings provide particular roles, such as for example the provision of an antibacterial property or the adsorption of surrounding VOC
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Julia Bessières. Les finitions poudres appliquées sur le bois et matériaux dérivés : optimisation du procédé industriel, étude des relations finition/substrat et fonctionnalisation. Autre. Université de Lorraine, 2012. Français. ⟨NNT : 2012LORR0066⟩. ⟨tel-01749232⟩

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