Effect of Shellac Waterborne Coating Microcapsules on the Optical, Mechanical and Self-Healing Properties of Waterborne Primer on Tilia europaea L. Wood

Abstract

Microcapsules of melamine formaldehyde-coated shellac and waterborne coating were prepared by in situ polymerization at 400, 600, 800 and 1000 rpm. The microcapsules prepared at four different stirring rates were added into the waterborne primer at a concentration of 5.0%, 10.0%, 15.0%, 20.0% and 25.0%. The effects of microcapsules prepared at different stirring rates and the concentration of microcapsules added into the paint film on the optical, mechanical and liquid resistance properties of the paint film were investigated. The results showed that the comprehensive performance of Tilia europaea L. waterborne primer film was the best when the concentration of microcapsules obtained at 600 rpm was 5.0%. On this basis, the aging resistance and self-healing performance of waterborne primer film on Tilia europaea L. with the best comprehensive performance were explored to lay the foundation for optimizing the preparation process of self-healing coating.

Effect of Coating Process on Mechanical, Optical, and Self-Healing Properties of Waterborne Coating on Basswood Surface with MF-Coated Shellac Core Microcapsule

“…The specific ingredients are shown in Table 3 . According to previous research [ 24 ], when microcapsules prepared at 600 rpm were added to the coating with the concentration of 5.0%, the comprehensive performance of the coating was the best. Taking sample 1# as an example, the 0.2 g prepared microcapsules were added to 1.8 g primer, the primer was coated to the basswood surface with a brush and then pushed flat with a paint-film preparer.…”

“…Previous research focused on the preparation process of microcapsules [ 24 ]. Based on these previous research results, our research considered the coating process of the waterborne coating, and studied the effects of different coating processes on the self-healing performance, mechanical properties, and aging resistance of the coating with microcapsules.…”

Determination of changes in the mechanical and color properties of some wood species treated with shellac

“…As a result of the Fourier-transform infrared (FTIR) analysis, they reported that the number of hydroxyl groups contributing to the 3400 cm -1 absorbance band decreased, which increased the dimensional stability. Yan et al (2021) examined the properties of shellac used in the microencapsulation process. They evaluated the effects of the solutions on linden wood and reported that the elongation at break and gloss values were the highest for the solutions prepared at 600 rpm using 5% shellac.…”

Effect of Paint Process on the Performance of Modified Poplar Wood Antique

“…The paint process in the finishing of European and American furniture not only provides a firm protective layer on the surface of the furniture, but also an important form of load-bearing for the beautiful surface [1][2][3]. In the antique distressing process, the use of paint is a way of expressing the distressed effect of the coating [4][5][6]. It cooperates with the color layer and works together to finally make the surface of European and American furniture show the antique distressed effect [7,8].…”