Resin coating technique for enhanced wood material densities
Researchers have coducted an investigation of physical and mechanical properties of wood coated with plant-oil based epoxide nanocomposite materials.
Some mechanical and physical properties of wood from the Oriental beech (Fagus orientalis L.) coated with bio-based epoxide amine nanocoatings were investigated in a recent 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.
Favourable qualities
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.
The study has been published in Progress in Organic Coatings, Volume 176, March 2023.
