Preparation of Modified Nano-TiO_(2) Ultraviolet Absorber and Its Application Performance in Coatings

SHEN Jian-qiang[1];GAO Hui-liang[1];LIU Chuan-qi[1];ZHANG Xin[2];PEI Ke-mei[2]

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Modern Paint & Finishing ›› 2022, Vol. 25 ›› Issue (12) : 1-4.

Preparation of Modified Nano-TiO_(2) Ultraviolet Absorber and Its Application Performance in Coatings

SHEN Jian-qiang[1];GAO Hui-liang[1];LIU Chuan-qi[1];ZHANG Xin[2];PEI Ke-mei[2]

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Abstract

In this paper,modified TiO_(2)nanoparticles were prepared by coating precipitation method,and the effect of dispersant dosage and pH value on the dispersibility of modified nano-TiO_(2)was studied.The properties of modified TiO_(2)nano powders were tested by transmission electron microscopy,ultraviolet diffuse reflectance spectroscopy and modified coatings.The dispersion stability of modified nano-TiO_(2)can be greatly improved,and the nano-particles have excellent UV absorption performance.When the proportion of modified nano-TiO_(2)in the coating is 0.4%,the coating has excellent hardness,adhesion,flexibility and excellent aging resistance properties.

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nano-TiO_(2);modification;hydroxyacrylic acid secondary dispersion;aging resistance

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SHEN Jian-qiang[1];GAO Hui-liang[1];LIU Chuan-qi[1];ZHANG Xin[2];PEI Ke-mei[2]. Preparation of Modified Nano-TiO_(2) Ultraviolet Absorber and Its Application Performance in Coatings[J]. Modern Paint & Finishing. 2022, 25(12): 1-4