无机包膜过程中铝离子的行为规律分析

Analysis of the Aluminum Ion Deposition in the Inorganic Coating Process for Titanium Dioxide

针对钛白粉无机包膜中铝离子的沉积规律,通过分光光度法确定了不同铝盐的沉积pH值范围,并采用在线颗粒检测仪对铝离子沉积过程中粒子的数量及粒度进行了实时监测,同时利用FTIR、SEM及XRD对不同沉积条件所得的固体物质进行了分析,确定了不同酸度条件得到的沉淀物的特性,为钛白无机包膜提供参考。

In order to reveal the behaviors of aluminum ion deposition in inorganic coating process for ti- tanium white, the spectrophotometric method was used to confirm the pH range of deposition for different aluminum salts, and the number of particles and particle size were monitored by the online panicle detec- tor in the precipitation process of aluminum ion. Furthermore, the precipitates obtained at different acidity conditions were analyzed by FT-IR, SEM and XRD to determine their characteristics. This research can provide a reference for inorganic coating of titanium dioxide.