Fast formation of hydrophobic coating on wood surface via an energy-saving dielectric barrier discharges plasma
11:29 - 25/03/2019
Natural durability of the culturally and historically important timber: Erythrophleum fordii wood against white-rot fungi
Shrinkage and swelling behavior of archaeological waterlogged wood preserved with slightly crosslinked sodium polyacrylate
Natural durability of Erythrophleum fordii Oliver against white rot fungi
Shrinkage and swelling behavior of archaeological waterlogged wood treated with polyacrylic acid resin
Authors
- Weimin Chen - Nanjing Forestry University; Jiangsu Engineering Research Center of Fast-Growing Trees and Agri-Fiber Materials, Nanjing 210037, China; Nanjing Suman Plasma Technology Co. Ltd., Enterprise of Graduate Research Station of Jiangsu Province, No.3 Youyihe Road, Nanjing, 210001, China; University of Alberta
- Xiaoyan Zhou - Nanjing Forestry University; Jiangsu Engineering Research Center of Fast-Growing Trees and Agri-Fiber Materials, Nanjing 210037, China
- Xiaotao Zhang - Nanjing Forestry University; Jiangsu Engineering Research Center of Fast-Growing Trees and Agri-Fiber Materials, Nanjing 210037, China
- Mohammad Feizbakhshan - University of Alberta
- Yizhong Cao - Nanjing Forestry University; Jiangsu Engineering Research Center of Fast-Growing Trees and Agri-Fiber Materials, Nanjing 210037, China
- Shukai Shi - Nanjing Forestry University; Jiangsu Engineering Research Center of Fast-Growing Trees and Agri-Fiber Materials, Nanjing 210037, China
- Thiphuong Nguyen - Nanjing Forestry University; Jiangsu Engineering Research Center of Fast-Growing Trees and Agri-Fiber Materials, Nanjing 210037, China
- Minzhi Chen - Nanjing Forestry University; Jiangsu Engineering Research Center of Fast-Growing Trees and Agri-Fiber Materials, Nanjing 210037, China
Abstract
The outdoor applications of wooden materials are greatly limited owing to their water sensitivity. In this study, an energy-saving dielectric barrier discharges (DBD) plasma system was applied to the wood surface as a fast method for the formation of a hydrophobic coating. The effects of the parameters of DBD plasma modification (processing time, discharge power, wood species, and feeding gas) on hydrophobicity were investigated using various characterization techniques (attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM), atomic force microscopy (AFM), and optical contact angle measurement (OCA)). The optimum parameters of DBD plasma modification (processing time of 75 s, discharge power of 60 W, poplar wood as the wood species, and feeding gas of HMDSO) were determined to achieve the highest hydrophobicity. DBD plasma modification also demonstrates its general applicability on different wood species, showing the effective introduction of a silicon-containing hydrophobic coating onto the surface of poplar, larch, and oak wood, respectively.