金属铝用复配缓蚀剂协同缓蚀作用研究

柳泽邦, 冉博元, 裴恒, 罗凯林, 赵智斌, 韩鹏, 强玉杰

Synergistic Corrosion Inhibition Effect of a Compound Inhibitor for Aluminum

LIU Zebang, RAN Boyuan, PEI Heng, LUO Kailin, ZHAO Zhibin, HAN Peng, QIANG Yujie

表1 在25℃的3.5%NaCl溶液中添加不同浓度缓蚀剂后测得的极化曲线拟合参数

Table 1 Fitting parameters of polarization curves of Al electrode during immersion in 3.5%NaCl solutions containing different concentrations of 4MP, SDS and 4MP + SDS at 25oC

Inhibitor Concentration g·L-1 -Ecorr mV Icorr μA·cm-2 ba mV·dec-1 bc mV·dec-1 η / % Inhibitor free - 1189.0 9.7479 557.3 285.04 - 4MP 0.025 1129.2 4.0201 737.7 298.4 58.76 0.375 1126.5 3.4650 245.0 387.2 64.45 0.500 1044.3 2.2682 489.8 322.8 76.73 0.625 1008.5 1.4989 335.6 402.2 84.62 0.750 944.1 1.3597 372.5 330.7 86.05 SDS 0.025 1040.7 3.1141 236.5 599.8 68.05 0.375 974.9 1.6865 102.1 377.8 82.70 0.500 967.9 1.5423 263.6 432.8 84.18 0.625 941.9 1.1793 180.9 434.5 87.90 0.750 918.8 0.1268 98.4 472.0 88.44 SDS+4MP 0.025 1171.1 1.7146 141.5 177.6 82.41 0.375 1133.4 1.0031 213.1 299.8 89.71 0.500 1043.3 0.6456 142.0 149.0 93.38 0.625 848.0 0.4565 136.7 152.0 95.32 0.750 986.4 0.6325 95.6 184.3 93.51