聚N-乙烯基咪唑对盐酸介质中Q235钢的缓蚀性能

丁其晨, 陈上

Corrosion Inhibition of Poly N-vinyl Imidazole for Q235 Steel in HCl Solution

DING Qichen, CHEN Shang

表2 Q235钢在298 K含不同浓度PVI 的1 molL-1盐酸溶液中极化曲线的拟合参数

Table 2 Polarization parameters for Q235 steel in 1 molL-1 HCl containing different concentrations of PVI at 298 K

CPVI mgL-1 Ecorr mV ΔEcorr mV Ιcorr mAcm-2 βa mV βc mV η2 % 0 -476.2 --- 1.5930 49.59 47.37 --- 2 -446.2 30 0.1253 50.21 52.02 92.1 4 -438.6 37.6 0.1033 48.03 49.38 93.5 8 -424.3 51.9 0.0815 47.50 49.65 94.9 16 -417.5 58.7 0.0541 49.02 48.84 96.6