Investigation of some physical and mechanical properties of wood coated with plant-oil based epoxide nanocomposite materials

Abstract

Some mechanical and physical properties of wood from the Oriental beech (Fagus orientalis L.) coated with bio-based epoxide amine nanocoatings were investigated in this study. Firstly, plant oil-based epoxide (ETO) was obtained from the reaction of glycidyl methacrylate (GMA) and tung oil via a Diels-Alder reaction. ETO was cured with Jeffamine D230, an aliphatic amine, and carbon nanoparticles, at a 1:1 epoxy: amine molar ratio. The wood sample was then subjected to mechanical testing of compression strength parallel to grain (CSPG) and modulus of rupture (MOR), air-dry density, oven-dry density, and water absorption (WA), as well as physical tests of those three variables. The samples coated with epoxide-amine nanocomposites had higher densities after the coating process, as evidenced by the outcomes of the air-dry and oven-dry tests. The findings of the water absorption (WA) test indicated that epoxy-coated samples outperformed control samples in terms of resistance to water absorption across the course of all water absorption periods. Increases in MOR values were seen in all epoxide-amine nanocomposites coated samples, per the MOR data. According to the CSPG findings, all epoxide-amine nanocoatings had greater than the control sample. Overall, it was determined that the plant oil-based nanocomposite resin coating technique enhanced wood material densities, decreased water absorption, and showed favourable qualities against mechanical effects.