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以工业用 NH4Al( SO4) 2 · 1 2 H2 O和 NH4HCO3为原料 ,采用化学沉淀法制备纳米Al2 O3粉体。研究了 p H值、乙醇、表面活性剂等因素对 Al2 O3粒子尺寸的影响 ,并探讨了几种反团聚的机理及效果。
Industrial use of NH4Al (SO4) 2 · 1 2 H2 O and NH4HCO3 as raw materials, the use of chemical precipitation nano Al2 O3 powder. The effects of p H value, ethanol, surfactant and other factors on the particle size of Al 2 O 3 were investigated. The mechanism and effect of several anti-agglomeration were discussed.