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Notice of retraction
Vol. 34, No. 8(3), S&M3042

Notice of retraction
Vol. 32, No. 8(2), S&M2292

Print: ISSN 0914-4935
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
Sensors and Materials
is covered by Science Citation Index Expanded (Clarivate Analytics), Scopus (Elsevier), and other databases.

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Sensors and Materials, Volume 36, Number 9(2) (2024)
Copyright(C) MYU K.K.
pp. 3843-3849
S&M3770 Research Paper of Special Issue
https://doi.org/10.18494/SAM5230
Published: September 5, 2024

System Solution for Waterborne Wood Paint Discoloration [PDF]

Wen-Cheng (Agingu) Shih

(Received July 8, 2024; Accepted August 26, 2024)

Keywords: waterborne wood paint, discoloration, tannin staining, titanium dioxide

The transition from solvent to low volatile organic compound and eco-friendly paint is a megatrend in the Asia Pacific region, and waterborne wood paint is still in the early stage of this transition. The most challenging technical problem is paint discoloration that can serve as a sensor for the malfunction of the paint system caused by tannin staining. This is a brownish or tan discoloration on the paint surface owing to the migration of tannin from the wood substrate through the paint film. A typical remedy is to apply an oil sealant in the presence of a tannin-inhibiting agent or a cationic resin in a base coat. This may lead to the constraints of multiple paint applications constraints, additional paint makeup steps, and unwanted chemical substance management. The described waterborne wood paint that is formulated with alumina surface-coated TiO2 (Al–TiO2) in combination with an anionic acrylate resin system demonstrates exceptional tannin stain resistance in comparison with silica/alumina surface-coated TiO2 (Si–Al–TiO2). A good compatibility with an acrylate resin system and a strong affinity toward tannin for alumina on a pigment surface are instrumental in mitigating waterborne wood paint discoloration.

Corresponding author: Wen-Cheng (Agingu) Shih


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Cite this article
Wen-Cheng (Agingu) Shih, System Solution for Waterborne Wood Paint Discoloration, Sens. Mater., Vol. 36, No. 9, 2024, p. 3843-3849.



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