This paper analyzes the viscosity stability of UV-curing matte white topcoat influenced by the types and addition ratios of TiO2,matting powder and dispersant and the production process.The study points out that the viscosity rise of UV-curing matte white topcoat after high-temperature storage is caused by the joint action of matting powder and TiO2.The proportion of thickening in high-temperature storage is significantly increased with the increase of TiO2 proportion;the proportion of thickening is also increased with the increase of matting powder proportion.Appropriate and high-proportion dispersants can significantly reduce the proportion of thickening in high-temperature storage.In addition,adding dispersant first is the optimal process for reducing the viscosity of UV-curing matte white topcoat and the production process temperature should not exceed 60℃.
关键词
光固化/涂料/亚光白面漆/黏度/稳定性
Key words
photocuring/coatings/matte white topcoat/viscosity/stability
维普
万方数据