摘要
本文采用正交实验方法对有机盐类、无机盐类和季铵盐类化合物进行复配得到一种氢氟酸介质中金属锌的优良缓蚀剂。利用失重法和电化学极化曲线法对该缓蚀剂进行了评价,并研究了金属腐蚀速率随缓蚀剂浓度,酸度,温度,时间等变化趋势。实验结果表明,该复合缓蚀剂用量在0.5%,温度小于50℃,酸度小于7%时具有良好的缓蚀效果,该缓蚀剂为阴极型缓蚀剂。
A composite corrosion inhibitor of zinc in hydrofluoric acid solution was developed byorthogonal test with the compound of organic salt, inorganic salt and quaternary ammonium salt. Thecorrosion inhibitor was evaluated by weight-loss method and electrochemical method. The change of zinccorrosion rate with concentration of corrosion inhibitor, hydrofluoric acid acidity, temperature and reactiontime was investigated. It was shown by the results that the corrosion inhibitor has an excellent corrosioninhibition when the quantity of the corrosion inhibitor is more than 0.5%, the temperature is below 50℃and the concentration of hydrofluoric acid is under 7%. The composite corrosion inhibitor is a kind ofelectrochemical cathode type inhibitor.
出处
《全面腐蚀控制》
2015年第2期82-86,共5页
Total Corrosion Control
关键词
锌
氢氟酸
缓蚀剂
研制
评价
zinc
hydrofluoric acid
corrosion inhibitor
preparation
evaluation
