Effect of Silane Coupling Agent Modification on Properties of Brass Powder-Water-Based Acrylic Coating on Tilia europaea

Abstract

Fine art coating is usually created by the combination of metal filler and water-based coatings, decorated to the surface of wood structures, furniture, and crafts. However, the durability of the fine art coating is limited by its weak mechanical qualities. In contrast, the metal filler’s dispersion and the coating’s mechanical properties can be significantly improved by the coupling agent molecule’s ability to bind the resin matrix with the metal filler. In this study, a brass powder-water-based acrylic coating was prepared, and three different silane coupling agents, 3-aminopropyltriethoxysilane (KH550), γ-(2,3-epoxypropoxy)propytrimethoxysilane (KH560), and γ-methacryloxypropyltrimethoxysilane (KH570), were used to modify the brass powder filler in orthogonal tests. The artistic effect and optical properties of the modified art coating induced by different proportions of brass powder, silane coupling agents, and pH were compared. The result demonstrated that the amount of brass powder and the kind of coupling agent used had a substantial impact on the coating’s optical characteristics. Our results also determined how three different coupling agents affected the water-based coating with varying brass powder contents. The findings indicated that 6% KH570 concentration and pH 5.0 were the ideal conditions for brass powder modification. Better overall performance of the art coating applied to the surface of the Basswood substrates was provided by adding 10% of the modified brass powder into the finish. It had a gloss of 20.0 GU, a color difference of 3.12, a color main wavelength of 590 nm, a hardness of HB, an impact resistance of 4 kg·cm, an adhesion of grade 1, and better liquid resistance and aging resistance. This technical foundation for the creation of wood art coatings promotes the application of art coatings on wood.

Preparation of Toddalia asiatica (L.) Lam. Extract Microcapsules and Their Effect on Optical, Mechanical and Antibacterial Performance of Waterborne Topcoat Paint Films

“…The 1639 cm −1 , 2924 cm −1 , and 1144 cm −1 peaks were the telescopic vibration peaks of C=O, -CH 3 , and C-O-C, respectively, in the urea-formaldehyde resin of the microcapsule wall material. The absorption peak of C-O in the core material of the microcapsule was 1114 cm −1 [45]. It was proven that after the microcapsules were added to the waterborne topcoat paint film, the microcapsule wall and core components still existed without chemical reaction.…”

Preparation Process Optimization for Melamine Resin-Covered Pomelo Peel Flavonoid Antibacterial Microcapsules and Their Effect on Waterborne Paint Film Performance

“…Preparing antibacterial agents into microcapsules and adding them to coatings can optimize the performance of the antibacterial agents and enhance the antibacterial function of the coatings, thus making it practical to optimize antibacterial preparation and enhance the function within the coatings. Melamine resin is a common microcapsule wall material with a simple manufacturing process and relatively low cost [26][27][28][29][30]. It has obvious advantages in the preparation of microcapsules.…”

Study on the Effects of Selected Factors on the Diagonal Tensile Strength of Oblique Corner Furniture Joints Constructed by Wood Dowel

“…Wood is a natural, environmentally friendly, porous material widely utilized in wood construction and wood products [1][2][3]. It is the natural properties of wood that seriously influence the quality, appearance, and strength of wood products, such as wood furniture, doors, and windows [4][5][6][7][8][9][10][11][12].…”