七十年代以来,佐藤等人利用膜电位法研究水合氧化铁膜的离子选择性认为,缓蚀剂的缓蚀作用是由于使金属表面膜由阴离子选择性变为阳离子选择性。本文用膜电位法研究Na_2MoO_4,Na_2HPO_4缓蚀剂的吸附特性,探讨其协同缓蚀机理,提出双层协同缓蚀吸附模型。 Since the seventies, Sato et al. Studied the ion selectivity of hydrated iron oxide films by using the membrane potential method. The corrosion inhibition effect of the corrosion inhibitor is due to the change of the metal surface film from anion selectivity to cation selectivity. In this paper, the adsorption characteristics of Na_2MoO_4 and Na_2HPO_4 corrosion inhibitors were studied by membrane potential method, and the synergistic corrosion inhibition mechanism was discussed. A double-layer synergistic corrosion inhibition model was proposed.