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当铝在氧溶解度较低的溶液如硼酸盐、酒石酸盐中阳极氧化时,按所加电压的大小,得到大约140×10~(-10)m/V厚的粘附、致密的非导电膜,但是,如果阳极氧化在氧部分溶解的酸性溶液如硫酸中进行时,在低的电压下得到较厚的、多孔的膜。这种膜有一定的孔隙率,并且孔隙率随电解质的性质、浓度、温度、氧化时间和电流密度的不同而异。阳极氧化膜的孔吸附能力强,它不仅能吸附染料,而且能吸附水并与水形成结晶体。没有封孔的氧化膜由一个较薄的靠近基
When aluminum is anodized in solutions of lower oxygen solubility, such as borates and tartrates, an approximately 140 × 10 -10 m / V thick adhesive, dense non-conductive However, if the anodization is carried out in an oxygen-partially dissolved acidic solution such as sulfuric acid, a thicker, porous membrane is obtained at low voltage. This membrane has a certain porosity, and porosity varies with electrolyte properties, concentration, temperature, oxidation time and current density. Anodized film pore adsorption capacity, it can not only absorb the dye, but also to absorb water and form crystals with water. No sealing of the oxide film by a thin near the base