用GB/T 10834-2008和ASTM D870-02标准,考察了基体表面不同可溶性盐含量对氯化橡胶涂层耐蚀性能的影响,根据GB/T 1766-2008对浸泡后涂层进行腐蚀等级评定,并用SEM观察涂层腐蚀形貌。结果表明:试样涂层明显可见的破坏方式的时间顺序依次是起泡、剥落和锈蚀;由于基体表面存在可溶性盐,使得ASTM标准中使用的去离子水比GB标准中使用的盐水对涂层的破坏更严重,去离子水的渗透性更强;可溶性盐含量在28.02～43.92 mg/m~2之间时是涂层破坏转变区间,可以认为43.92 mg/m~2是临界值。 With GB / T 10834-2008 and ASTM D870-02 standards, the effects of different soluble salt contents on corrosion resistance of chlorinated rubber coatings were investigated. According to GB / T 1766-2008, the corrosion grade of the coatings after immersion was evaluated The corrosion morphology of the coating was observed by SEM. The results show that the time sequence of the obvious damage modes of the coating is foaming, spalling and rusting. Because of the presence of soluble salts on the surface of the substrate, the deionized water used in the ASTM standard is more stable than the brine used in the GB standard. , And the deionized water is more permeable. When the soluble salt content is between 28.02 and 43.92 mg / m ~ 2, the coating damage transformation interval can be considered, and the critical value of 43.92 mg / m ~ 2 is considered.