Abstract
As one of the most sustainable resources, wood has been widely used in the fields of construction, decoration, flooring and furniture. However, the micron-scale porous structure of wood makes it have strong moisture absorption capacity and is susceptible to bacterial adhesion. In order to expand its utility in more applications of wood products, it is necessary to make the wood have a certain antibacterial and waterproof properties. This study demonstrates a method of using hexadecyltrimethoxysilane and nano-titanium dioxide to prepare antibacterial and waterproof coating and apply it to wood surfaces. Studies have shown that this kind of wood coated with an antibacterial waterproof coating has excellent antibacterial properties (antibacterial rate as high as 99%) and waterproof properties. In addition, this antibacterial and waterproof coating does not cause a major change in the color of the wood, and at the same time increase the tensile strength and hardness to a certain extent. The above-mentioned properties of this antibacterial and waterproof coating provide a new idea for the preparation of wood coatings.
Highlights
As a natural, biodegradable, recyclable and cheap material, wood is widely used in construction, decoration, furniture and other fields (Aigbomian and Fan, 2013; Zhu et al, 2016; Chen et al, 2017; Goodman et al, 2018)
It can be seen that the coated wood (CW) surface is covered with a layer of coating, and the holes that were originally exposed on the wood surface are filled in (Figures 2A,D)
The molecules on the surface of the wood are still polar and have a certain surface free energy, which enables them to be well combined with the antibacterial waterproof coating (Ye et al, 2017; Teacaand Tanasa, 2020)
Summary
Biodegradable, recyclable and cheap material, wood is widely used in construction, decoration, furniture and other fields (Aigbomian and Fan, 2013; Zhu et al, 2016; Chen et al, 2017; Goodman et al, 2018). Wood is not as dense as metal, it has a large number of pipe holes and gaps on its surface and inside, which makes it easy to be contaminated by different liquids and suffer from the adhesion of bacteria (Avramidis et al, 2009; Pouzet et al, 2018). The usual solution is to coat wood with lacquer, wax or oil. The lacquer protection method is to cover the surface of the wood with a layer of airtight lacquer film to isolate the moisture and bacteria from the wood itself. Most of the traditional lacquers are chemical products that are rich in Antibacterial and Waterproof Coating chemical substances harmful to the human body. The oil film applied to the wood can form a closed protection for the wood like the lacquer film, but the oil film has a strong smell and is difficult to disperse
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