PERCENTAGE OF WEIGHT INCREASE IN EUROPEAN SPRUCE WOOD (PICEA ABIES.MILL), IMPREGNATED WITH POLYURETHANE AND ACRYLIC COATINGS
Date Issued
2013
Author(s)
Mihajlovski Nikola
Konstantin Bahchevandjiev
Abstract
Impregnating and coating of wood with film forming materials are methods for the surface treatment
of wood. Through the method of double vacuum (engl. Double vacuum process) polymeric film
forming materials are incorporated into cellular and intracellular cavities of the surface layers of the
wood. The resulting percentage of increase in mass (engl. Weight Percent Gain- WPG) is
significantly larger than on classical coated wood.
The progress rate of increase in mass of the test pieces, the impregnation with polyurethane coating
is 11.4% and the impregnation with acrylic coating 10.6%. Differences in impregnated wood with
polyurethane and acrylic coating are not statistically significant.
of wood. Through the method of double vacuum (engl. Double vacuum process) polymeric film
forming materials are incorporated into cellular and intracellular cavities of the surface layers of the
wood. The resulting percentage of increase in mass (engl. Weight Percent Gain- WPG) is
significantly larger than on classical coated wood.
The progress rate of increase in mass of the test pieces, the impregnation with polyurethane coating
is 11.4% and the impregnation with acrylic coating 10.6%. Differences in impregnated wood with
polyurethane and acrylic coating are not statistically significant.
Subjects