探讨了电化学方法在Al基体上沉积聚苯胺膜的控制工艺，研究了聚苯胺膜的耐蚀性。结果表明，Al基体上沉积一层Ni后，可用电化学方法沉积聚苯胺膜。循环伏安法的扫描电位上限、恒电流法的电流密度、恒电位法的电位范围和电解质的酸度均影响苯胺的聚合速度和聚苯胺膜的物理性能。动电位极化曲线表明，在0.5 mol/L NaCl溶液中，用各种电化学方法沉积聚苯胺膜的Al样品，其点腐蚀电位比无膜时有所升高。Al基体表面覆盖导电聚苯胺膜以后，其耐蚀性能得到提高。
Polyaniline （PANI） films are deposited on aluminum substrate through electrochemical process and the corrosion resistance of PANI films is studied. The results show metallic nickel of nonelectrolytic deposition on the aluminum surface can catalyze electropolymerization of aniline.The proper upper scanning potential through cyclic voltammetry is not more than 0.7 V（vs. Hg/Hg2SO4）； the polymerization potential range through potentio?鄄static is between 0 and 0.45 V（vs. Hg/Hg2SO4）； the current density through galvanostatic is not more than 0.3 mA/cm2；the proper electrolytic pH value is at range of 2 to 3.The potentiodynamic polarization curves in 0.5 mol/L sodium chloride solution show that the pitting corrosion potentials of aluminum electrodes coated with PANI through cyclic voltammetry，potentiostatic or galvanostatic method shift toward positive direction as compared with pure aluminum electrode.The PANI coating could improve the pitting corrosion resistance of aluminum and its alloy.
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