摘要
介绍了钛醇盐的合成方法。在惰性溶剂中，以自制钛乙醇盐为原料，探讨了钛醇盐水解制取高纯ＴｉＯ＿２微粉的方法。研究了反应物浓度、温度、水量、搅拌速度、分散剂以及干燥、锻烧等对ＴｉＯ＿２粒子物性的影响规律，制备出纯度≥９９．５％，粒径＜１．０μｍ，近似球形的ＴｉＯ＿２微粉。用其做成ＰＴＣ电子元件，其电性能接近日本ＴＤＫ同类产品的技术指标。
The synthesis method of titanium alkoxides has been introduced.In inert solvent,the process of preparation of TiO_2 particles by hydrolysis of self-made titanium alkoxides is de-scribed.The effects of the concentration of reactants,the temperature, amount of water,the stir- ring rate,dispersants,the drying and the burning on particle properties were studied.The TiO_2 powder has been prepared,whose purity is above 99.5 percent,particle size is below 1. 0μm and form is similar to ball. This type of TiO_2 powder has been made into PTC electronic compon- ments,with performance up to the technic indices of TDK produced in Japan.
出处
《钢铁钒钛》
CAS
北大核心
1995年第2期16-21,29,共7页
Iron Steel Vanadium Titanium
关键词
二氧化钛
钛醇盐
水解
高纯
titanla,titanium alkoxide,hydrolysis,high purity, ultrafine particles,simple-sized
