文献类型：期刊文献

英文题名：Effects of the Surface Roughness of Six Wood Species for Furniture Production on the Wettability and Bonding Quality of Coating

作者：Yu, Qinglin[1,2] Pan, Xi[1,2] Yang, Zhong[1,2] Zhang, Li[1,2] Cao, Jingyun[1,2]

第一作者：Yu, Qinglin

通信作者：Yang, Z[1];Yang, Z[2]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China;[2]Natl Forestry & Grassland Adm, Key Lab Wood Sci & Technol, Beijing 100091, Peoples R China

年份：2023

卷号：14

期号：5

外文期刊名：FORESTS

收录：;EI(收录号：20232314181469);Scopus(收录号：2-s2.0-85160782523);WOS:【SCI-EXPANDED(收录号:WOS:000998149600001)】；

基金：This research were funded by the Fundamental Research Funds for Central Public Welfare Research Institutes (CAFYBB2021ZJ001) and the Key Research Funds of the Development Project Fund National Forestry and Grassland Administration (GLM [2021]13).

语种：英文

外文关键词：furniture wood; surface roughness; surface free energy; wettability; waterborne acrylic; bonding quality

摘要：Wood surface roughness, surface free energy (SFE), wettability, and bonding quality for water-based acrylic coatings were investigated. The samples tested in this study included Pinus radiata, Pinus sylvestris, Larch, Hemp oak, Catalpa tree, and Camphor. Sandpaper with grits of 180, 240, 320, 400, and 500 was utilized to sand wood surfaces. The van OSS-Chaudhury-Good equation (vOCG) was used to calculate the SFE values. The modified model (M-D) was used to calculate the wettability based on the contact angle change rate (K value). The higher the K value, the faster the contact angle approaches equilibrium. A cross-cut test was used to evaluate the coating's bonding quality. The anatomical structure of wood has an impact on the roughness of hardwood. The equilibrium contact angle is influenced by the wood species and sandpaper grit size. Sanding can make the surface of wood more wettable. Radiata pine that had been sanded to 180 grit had the highest SFE value. After finishing with waterborne acrylic, hardwood had a slightly better coating adhesion than softwood. Hemp oak wood had the lowest coating adhesion (0.6) and the highest K value (0.82). The best bonding quality (0.4) was supplied by the camphor wood with the lowest K value (0.13). Wettability in terms of K values was a good indication of determining the bonding quality of the water-based acrylic coatings.