Amélioration des propriétés mécaniques de surface du bois par imprégnation sous vide en continu

Authors: Bigué Paré, Alexandre
Advisor: Bégin-Drolet, André; Blanchet, Pierre
Abstract: This master's project is carried out under the direction ofAndré Bégin-Drolet and Pierre Blanchet as part of the CRSNG – Canlak en finition des produits du bois d’intérieur (CRIF). The main objective is to provide knowledge to guide the densification and hardness increase of engineered floorboards of industrial scale production in order to make floors more durable and resistant. The literature review initially concluded that vacuum impregnation is the fastest and most effective method of surface densification for wood. The models discussed, including that of Fito et al.[1], as well as fluid mechanics models, revealed the optimal impregnation parameters. These include the viscosity of the impregnation formulation, which should be as low as possible in order to maximize penetration into the wood pores. The liquid impregnates by filling the pores of the wood and then sets through polymerization, making the wood more durable. In a second step, it is proposed to carry out vacuum impregnation continuously and automatically. Two real prototypes have been designed in order to confirm the chosen impregnation parameters as well as to find a sequence of operation. Finally, an automated prototype allowing the impregnation of engineering floor boards is presented. It is evaluated at $125,000 for total manufacturing costs and gives a production rate of 0.7 m²/sec.
Document Type: Mémoire de maîtrise
Issue Date: 2021
Open Access Date: 14 June 2021
Grantor: Université Laval
Collection:Thèses et mémoires

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