Influence of Rutile Nano-TiO2 on Ultraviolet Resistance of Paint
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摘要: 采用多种表面活性剂对金红石纳米TiO2进行有机表面处理,选择出最佳的表面活性剂,以便提高金红石纳米TiO2在有机体系中的分散性。将改性后的纳米TiO2应用于家具漆、防腐漆、汽车漆面漆中,并通过检测油漆经过不同时间紫外老化后的色差和失光率情况来判断油漆的抗老化性能。结果表明:用B/C两种分散剂做表面处理后的纳米TiO2具有优异的分散性,改性后的纳米TiO2在油漆应用后表现出优异的抗紫外性能,其抗变色和保光性能得到了大幅度提高。Abstract: Rutile nano-titanium dioxide was modified by surfactant to improve its dispersion in organic solvents. The modified nano-titanium dioxide was respectively used in furniture paint,anticorrosive paint and automotive paint. The ultraviolet resistance of the paints was achieved by detecting the color difference and gloss loss rate under ultraviolet aging. The results show that the nano-titanium dioxide modified by B/C surfactant has excellent dispersion in the paints. Excellent anti-ultraviolet performance can be obtained in the paints by application of the modified nano-titanium dioxide,and the color and gloss retention properties of the paints are improved enormously.
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Key words:
- nano-titanium dioxide /
- ultraviolet resistance /
- surface treatment /
- surfactant
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