Strength Properties of Wood for Cleavage on Tangential and Radial Planes Impregnated with a Polymer Composition Based on Dimethacrylic Polyester

To create new types of wooden structures, new or modified wood-based materials are required. Of interest are the elements of wooden structures made with the use of modern polymer materials with the inclusion of carbon nanotubes, which leads to an increase in strength and rigidity, a decrease in material consumption and installation weight of structures, reduces the effect of anisotropy of properties and defects of wood on the bearing capacity. The article presents the results of testing samples impregnated with dimethacrylic polyester with nanostructured filler for tangential and radial cleavage. The increase in strength properties during the modification of wood was 21–23%, and with the addition of carbon nanotubes – 28–32%. Experimental studies have proved the promising possibility of using a polymer composition to modify wood in order to increase its strength properties.