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- Title
Hydrophobic and UV-resistant properties of environmentally friendly nano-ZnO-coated wood.
- Authors
Wang, Yanan; Wu, Xiaotong; Wang, Yibo; Tian, Yongqi; Mu, Hongbo; Li, Jingkui
- Abstract
The combinations of nano-ZnO with wood through simple and efficient physical methods to prepare environmentally friendly and versatile Nano-ZnO-coated Wood have important research and practical implications. In this paper, an environmentally friendly nano-ZnO-coated wood was prepared by physical magnetron sputtering using Pinus sylvestris L. var. mongholica Litv. The micro-characteristics, structure, wettability and colour change of the ZnO-coated wood were characterized and studied. For samples with a sputtering time of more than 3 min, the surface water contact angle exceeded 130° and had good hydrophobic properties. After a 168 h accelerated ultraviolet (UV) ageing test, the total colour difference (ΔE∗) of the sample with a sputtering time of 75 min (200 °C) was 77% lower than that of the original wood. When the substrate was at 200 °C, the ZnO films deposited on the surface of the wood were evenly and densely arranged, forming almost a continuous film. It could be seen that the deposition of a nano-ZnO film on the surface of wood could significantly improve its hydrophobic properties and anti-UV photochromic properties.
- Subjects
WOOD chemistry; ZINC oxide films; CONTACT angle; SCOTS pine; WATER
- Publication
Holzforschung: International Journal of the Biology, Chemistry, Physics, & Technology of Wood, 2021, Vol 75, Issue 2, p138
- ISSN
0018-3830
- Publication type
Article
- DOI
10.1515/hf-2019-0312