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根据盐水中金属缓蚀机理,进行缓蚀剂分子设计。研究原料配比、反应时间、反应温度对盐水缓蚀剂(AGE)性能的影响。利用红外对其进行结构表征,再通过静态失重法考察其加量、pH值、温度、复配剂对腐蚀速率的影响,测试其盐水溶解性、乳化倾向,并根据缓蚀剂的分子结构分析其缓蚀机理。该缓蚀剂在盐水中具有良好的溶解性、无乳化倾向。其在盐水溶液中有很好的缓蚀性能,当加量为1000mg/L时,腐蚀速率为0.07625mm/a。该缓蚀剂与三乙醇胺有很好的协同效果,当三乙醇胺加量为600mg/L时,其腐蚀速率可降至0.02862mm/a;当在35℃下加入200mg/L的AGE及100mg/L的三乙醇胺时,其腐蚀速率降至0.04564mm/a。
According to the corrosion inhibition mechanism in brine, corrosion inhibitor molecular design. The effects of raw material ratio, reaction time and reaction temperature on the performance of brine corrosion inhibitor (AGE) were studied. Its structure was characterized by infrared spectroscopy. The effects of dosage, pH value, temperature and complexing agent on the corrosion rate were investigated by static weight loss method. The solubility and emulsifying tendency of salt solution were tested. According to the molecular structure analysis Its corrosion inhibition mechanism. The corrosion inhibitor has good solubility in saline, no emulsification tendency. Its salt solution has a good corrosion resistance, when the amount of 1000mg / L, the corrosion rate of 0.07625mm / a. The corrosion inhibitor and triethanolamine have a good synergistic effect, when the amount of triethanolamine 600mg / L, the corrosion rate can be reduced to 0.02862mm / a; when 35 ℃ under the addition of 200mg / L of AGE and 100mg / L triethanolamine, the corrosion rate dropped to 0.04564mm / a.