PERCENTAGE OF WEIGHT INCREASE IN EUROPEAN SPRUCE WOOD (Picea Abies.Mill), IMPREGNATED WITH PОLYURETHANE AND ACRYLIC COATINGS
Date Issued
2013
Author(s)
Nikola Mihajlovski
Konstantin Bahchevandjiev
Mitko Nacevski
Abstract
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.
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.
Subjects