Tensile Strength of Wood Modified Polymer Composition with Carbon Nanotube Filler

For the rational use of wood in the manufacture of new types of wooden structures, strengthening of nodes and interfaces, it is currently advisable to use new materials and technical solutions using polymer compositions. Of the greatest interest are structural elements and manufacturing technologies of wooden structures using modern composite polymer materials with the inclusion of carbon nanotubes (CNTs) in their composition, which leads to increased strength and rigidity, reduced material consumption and mounting weight of structures, reduces the effect of anisotropy of properties and defects of wood on the bearing capacity. Modification is carried out using a polymer composition based on dimethacrylic polyester with a nanostructured filler. In order to establish the mechanical properties of wood, experimental tests were carried out with a polymer composition without filler and with a nanostructured filler. The increase in strength properties during the modification of wood was 23.55%, and with the addition of carbon nanotubes—37.15%. Experimental studies have proved the promising possibility of using a polymer composition to modify wood in order to increase its strength properties.