Abstract
The suitable coating process and discoloration effect of the waterborne paint added with color-changing powder on the surface of Chinese fir were investigated using an orthogonal method from three factors of the number of primers, topcoats, and the way of adding color-changing powder. It was found that the number of primers showed the greatest significance on the color difference of paint film, and the method of adding the color-changing powder had the most influence on the gloss of the paint film. Meanwhile, the impact resistance, paint film adhesion, liquid film resistance level, the gloss of coatings, and the composition of waterborne coatings were not affected by the three factors. The results indicated that two primers, two topcoats with color-changing powder, were the most suitable coating technologies for the reversible color waterborne coating to obtain a stable and sustainable discoloration effect. These results will provide a reference for the construction and application of a color-changing coating.
Highlights
The surface finishing process can protect the surface of the substrate [1,2,3], and achieve the purpose of a beautiful color [4]
SEMand andmicroscopic microscopic pictures pictures ofofthe the color-changing powder are shown shown in Figure picturesof the color-changing powder are shown in 3
Under the same intensity of incident light, there was no obvious change in the gloss using the different coating technologies
Summary
The surface finishing process can protect the surface of the substrate [1,2,3], and achieve the purpose of a beautiful color [4]. Houska et al [5] used reactive magnetron sputtering to prepare VO2 -based thermochromic coatings, combining four methods to improve coating performance. Geng et al [8] designed and prepared reversible thermochromic microcapsule phase change materials with excellent heat storage release performance and good stability, and applied them to the production of fire service clothing to provide adequate protection against heat. These studies indicated that microcapsule products have been widely used in the construction, clothing, and industrial fields. According to the authors’ literature search, there have been few studies on the color-changing materials of a water-based
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