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Open AccessArticle

Preparation and Characterization of Waterborne UV Lacquer Product Modified by Zinc Oxide with Flower Shape

by Yan Wu 1,2,*, Xinyu Wu 1,2, Feng Yang 3,* and Jiaoyou Ye 4
1
College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, China
2
Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
3
Fashion Accessory Art and Engineering College, Beijing Institute of Fashion Technology, Beijing 100029, China
4
DeHua TB New Decoration Material Co. Ltd., Deqing 313200, China
*
Authors to whom correspondence should be addressed.
Polymers 2020, 12(3), 668; https://doi.org/10.3390/polym12030668
Received: 3 March 2020 / Revised: 12 March 2020 / Accepted: 14 March 2020 / Published: 17 March 2020
(This article belongs to the Special Issue Polymer Processing and Surfaces)
In this paper, the waterborne UV lacquer product (WUV) was used as the main raw material, zinc oxide (ZnO) was used as the additive, and the stearic acid as the surface modifier. According to the method of spraying coating on the surface of poplar wood (Populus tomentosa), a simple and efficient preparation method was carried out to generate a super-hydrophobic surface and enhance the erosion resistance of the coating. By testing, the contact angle (CA) of water on the coating surface can reach 158.4°. The microstructure and chemical composition of the surface of coatings were studied by scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FT-IR), and X-ray diffraction (XRD). The results showed that under acidic conditions, the non-polar long chain alkyl group of stearic acid vapor molecule reacted with the hydroxyl group in acetic acid, the metal ions of the ZnO were displaced to the stearic acid and generated globular zinc stearate (C36H70O4Zn). The hydrophobic groups –CH3 were grafted to the surface of zinc stearate (ZnSt2) particles and the micro/nano level of multistage flower zinc stearate coarse structure was successfully constructed on the surface of poplar wood, which endowed it with superhydrophobic properties. It is shown that the coating has good waterproof and erosion resistance. View Full-Text
Keywords: poplar wood; waterborne UV lacquer product; wood modification; contact angle; spectroscopy; super-hydrophobic coating poplar wood; waterborne UV lacquer product; wood modification; contact angle; spectroscopy; super-hydrophobic coating
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MDPI and ACS Style

Wu, Y.; Wu, X.; Yang, F.; Ye, J. Preparation and Characterization of Waterborne UV Lacquer Product Modified by Zinc Oxide with Flower Shape. Polymers 2020, 12, 668.

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