合成三种水溶性取代吡啶甲酰腙席夫碱缓蚀剂，采用静态失重法、电化学方法和扫描电镜研究其在3.5% NaCl介质中对铜的缓蚀作用. 结果表明, 三种缓蚀剂都是以抑制阴极为主的混合型缓蚀剂; 当温度在35℃、缓蚀剂质量浓度为75 mg/L时, 缓蚀效率最高, 在缓蚀过程中未发生分解. 三种缓蚀剂对铜在3.5% NaCl溶液中均具有较好的缓蚀效果.
Three kind of water-soluble substituted pyridine formyl hydrazone Schiff bases was synthesized and their inhibition effect on copper in 3.5% NaCl solution was investigated by mass-loss, electrochemical method and scanning electron microscopy. The results showed that the three kind of compounds acted as mixed inhibitors with cathodic inhibition as dominative action. It was found that pyridine formyl hydrazone Schiff bases with concentration of 75 mg/L had excellent inhibition efficiency for copper at 35℃. All the three kind of inhibitors showed excellent inhibition effect in the studied temperature range.
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