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发明公开
CN103352225A 一种黄铜缓蚀剂及其制备方法 失效 - 权利终止

一种黄铜缓蚀剂及其制备方法
摘要：
本发明公开了一种黄铜缓蚀剂及其制备方法，所述的黄铜缓蚀剂，包括溶质和溶剂，所述的溶剂为水，所述的溶质为羧甲基纤维素钠与ZnSO4，其中Na-CMC为1-9mg/L，ZnSO4为4mg/L。其制备方法，即将Na-CMC加入到水中，控制温度为70℃下搅拌1h，冷却至室温，再添加ZnSO4·7H2O，即得到黄铜缓蚀剂。本发明的一种黄铜缓蚀剂，其所用的原料Na-CMC价格低廉、原料易得，因此其生产成本低。另外，本发明的黄铜缓蚀剂，Na-CMC和ZnSO4对黄铜起到了良好的缓蚀协同效应，其对黄铜表现出良好的防腐蚀效果，在黄铜表面形成一种缓蚀剂膜，保护黄铜表面不被腐蚀，其缓蚀效率可高达85.06%。
摘要（英）：

The invention discloses a brass corrosion inhibitor and a preparation method thereof. The brass corrosion inhibitor comprises a solute and a solvent, wherein the solvent is water; the solute is sodium carboxymethyl cellulose and ZnSO4, wherein Na-CMC (Carboxyl Methyl Cellulose) is 1-9 mg/L and ZnSO4 is 4 mg/L. The preparation method comprises the following steps: adding Na-CMC into water, controlling the temperature to be 70 DEG C, stirring for 1 hour, then cooling to the room temperature, and adding ZnSO4.7H2O to obtain the brass corrosion inhibitor. The brass corrosion inhibitor is prepared by the easily accessible raw material Na-CMC with low price, so that the manufacturing cost is low. In addition, as the Na-CMC and ZnSO4 have a favorable synergistic effect of corrosion inhibition to brass, owing to the favorable anticorrosion effect to brass, a corrosion inhibitor film is formed on brass to protect the surface of brass against corrosion; the corrosion inhibition efficiency can be up to 85.06 percent.

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