Startseite Hydrophobic and UV-resistant properties of environmentally friendly nano-ZnO-coated wood
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Hydrophobic and UV-resistant properties of environmentally friendly nano-ZnO-coated wood

  • Yanan Wang , Xiaotong Wu , Yibo Wang , Yongqi Tian , Hongbo Mu und Jingkui Li EMAIL logo
Veröffentlicht/Copyright: 6. August 2020
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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.


Corresponding author: Jingkui Li, Northeast Forestry University, Harbin 150040, China, E-mail:

Funding source: The Fundamental Research Funds for the Central Universities

Award Identifier / Grant number: 2572019BC02

  1. Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: This work was supported by the Fundamental Research Funds for the Central Universities (2572019BC02).

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2019-12-21
Accepted: 2020-06-04
Published Online: 2020-08-06
Published in Print: 2021-02-23

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