Faculty of Design and Technologies of Furniture and Interior

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Author: search.filters.author.Nikola MihajlovskiHas files: No

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    Item type:Publication,
    PERCENTAGE OF WEIGHT INCREASE IN EUROPEAN SPRUCE WOOD (Picea Abies.Mill), IMPREGNATED WITH PОLYURETHANE AND ACRYLIC COATINGS
    (Faculty of Design and Technologies of Furniture and Interior-Skopje, 2013)
    Nikola Mihajlovski
    ;
    Konstantin Bahchevandjiev
    ;
    Mitko Nacevski
    Capillary absorption - impregnating the wood with filmogenic materials, represents a possible method for surface modification of the wood. By application of double vacuum process, polymeric filmogenic materials are incorporated into the cellular and intracellular cavities of the wood surface layers. The Weight Percent Gain - WPG is significantly larger than with classically coated wood. The progress rate of WPG of two dimensions of test pieces in the impregnation process with polyurethane coating is 11.39% and 36.03%, and in impregnation with acrylic coating it is 10.60% and 28.70%. The differences in impregnated wood with polyurethane and acrylic coating are not statistically significant.
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    Compression strength parallel to the grain of spruce wood (Picea abies Karst) impregnated with polyurethane and acrylic coatings
    (Faculty of Design and Technologies of Furniture and Interior-Skopje, 2015)
    Nikola Mihajlovski
    ;
    Konstantin Bahchevandjiev
    ;
    Mitko Nacevski
    This research focuses on the influence of impregnation of spruce wood (Picea abies Karst) on the compression strength and module of elasticity of wood parallel to the grain. The wood is impregnated by double vacuum process with polyurethane and acrylic coatings. Weight percent gain of wood impregnated with polyurethane is 36.3% and 28.3% of wood impregnated with acrylic coating. Significantly increased compression strength and modulus of elasticity parallel to the grain.