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本文采用失重法、原子吸收光谱法和电化学方法研究了苯并噻唑及其衍生物在模拟冷却水中对黄铜脱锌腐蚀的抑制作用,测定了这些化合物分子结构对缓蚀性能的影响,其抑制作用从高到低的顺序为:2—巯基苯并噻唑(2—SH—BT)>2—氨基苯并噻唑(2—NH_2—BT)>2—甲基苯并噻唑(2—CH_3—BT)>苯并噻唑(BT).并探讨了这些缓蚀剂的抑制作用机理.
The effects of benzothiazole and its derivatives on dezincification of brass in simulated cooling water were investigated by weight loss method, atomic absorption spectrometry and electrochemical methods. The influence of molecular structure of these compounds on corrosion inhibition was also studied. The order of inhibition from high to low was 2-SH-BT> 2-NH 2 -BT> 2-CH 3 -benzothiazole (2-CH 3- BT)> benzothiazole (BT). The mechanism of inhibition of these inhibitors was also discussed.