Quantitative analysis of commercial coating penetration into Fagus crenata wood using X-ray Microtomography

Abstract

Recently, coating has been used as economically friendly materials to enhance the dimensional stability and aesthetic properties of woody materials as a preservative. X-ray microtomography is a promising visualization technique for observing the coating penetration plots. The study aimed to determine the efficiency and applicability of X-ray microtomography for observing and assessing the distribution of coating materials in two- and three-dimensional visualizations. The coating assessments were investigated using X-ray images and plot profile to obtain the penetration depth. Some Japanese commercial coatings were used for the experiments. Two types of coating application such as spray and brush were performed. Each coated sample was scanned using X-ray microtomography, and the coating penetration depth was successfully visualized and quantified. The chemical content in the coating materials and its concentration have been proven to affect the coating penetration plots and amount. The X-ray images has successfully showed penetration plot and assessed the penetration value at the microscopic scale.