纳米TiO_2水分散体系稳定性的研究

Research on the stability of nano TiO_2 in the system of water dispersion

研究了不同类型的分散剂对金红石型纳米TiO2在水中分散体系稳定性,探讨了分散剂、偶联剂用量、纳米TiO2浓度及pH值对纳米TiO2水分散体系的影响。结果表明,最佳分散剂为SK-5040,最佳分散条件为:100 mL纳米TiO2水溶液中,最佳分散剂用量为1.0 g,KH-570硅烷偶联剂用量为1.5 mL,纳米TiO2浓度为1.0%,pH值为10。

Studied on the dispersion Discussed the influence of different dosage is 1.0 dosage of rutile nano TiO2 powder in water dispersants dosage, coupling agents by different dispersing agents. dosage , pH value of nano TiO2 on the nano TiO2 dispersion system. The result shows that the optimal dispersant SK-5040 dosage g, KH-570 silane coupling agents dosage is 1.5 mL, the concentration of nano TiO2 is 1. 0%, pH is 10 in 100 mL water.