异喹啉季铵盐缓蚀剂FIQ－C在盐酸中的缓蚀行为研究

研究了天然高分子改性异喹啉季铵盐絮凝－缓蚀剂FIQ－C在10％盐酸溶液中对Q235钢的缓蚀性能，讨论了药剂用量，温度，时间对缓蚀性能的影响，以及FIQ－C与EDTMP的协同缓蚀效应，并通过极化曲线，扫描电镜及俄歇能谱，探讨了FIQ－C在盐酸介质中的缓蚀机理，结果表明，FIQ－C在10％盐酸介质中对Q235钢具有良好的缓蚀作用，是一种阴，阳极混合型缓蚀剂。

CORROSION INHIBITION PERFORMANCE OF ISOQUINOLINE QUATERNARY AMMONIUM SALT IN HYDROCHLORIC ACID

The corrosion inhibition of FIQ C Inhibitor for mild steel in 10% HCl solutions was studied. Factors such as normal running concentration, temperature, time, and the synergistic inhibition effect of FIQ C and EDTMP were discussed. The corrosion inhibiting mechanism of FIQ C in hydrochloric acid was investigated by meas of polarization curves, SEM and AES. Results showed that FIQ C corrosion inhibitor attained good inhibition effect in 10% HCl and was a mixed type inhibitor.