席夫碱缓蚀剂的复配性能研究

以苯甲醛、乙二胺为原料合成席夫碱，用硫脲、乌洛托品、碘化钾、烷基酚聚氧乙烯醚（OP-10）与之进行复配制成缓蚀剂。利用正交试验考察硫脲、乌洛托品、碘化钾、OP-10与席夫碱的质量比对腐蚀速度的影响，采用静态失重法评价了复配缓蚀剂在质量分数为15％的盐酸和土酸中的缓蚀性能，结果表明，当复配缓蚀剂加量为1％时，N80钢片在15％的盐酸中的腐蚀速率为0．0894g/（m^2·h），在土酸中的腐蚀速率为0．1241g／（Tn^2·h）。

Study on Corrosion Inhibiting Properties of Composite Schiff Base

With Benzaldehyde and ethylenediamine as raw materials, Schiff base was synthesized. Schiff base synthesized was combined with thiourea, methenamine, potassium iodide, alkylphenol polyethylene oxide ether （OP- 10） to prepare corrosion inhibitor. The influences of mass ratio of thiourea, hexamine, potassium iodide, OP - 10 and Schiff base on the corrosion rate were examined by orthogonal test . The corrosion inhibi- tion performance of composite Schiff base in 15% hydrochloric acid and mud acid was examined by static weight loss method. The result showed the corrosion rates in 15% hydrochloric acid and mud acid were 0.0894 and 0. 1241 g/（ m2·h） respectively when the content of composite Schiff base was 1%.