苯并咪唑衍生物在1 mol/L HCl溶液中对45<sup>#</sup>碳钢缓蚀行为的研究

苯并咪唑衍生物在1 mol/L HCl溶液中对45^#碳钢缓蚀行为的研究

王青, 马雪梅, 石海燕, 原珊, 郭建峰, 梁栋, 胡志勇

Inhibition Performance of Benzimidazole Derivatives for Steel 45(GB) in 1 mol/L HCl Solution

WANG Qing, MA Xuemei, SHI Haiyan, YUAN Shan, GUO Jianfeng, LIANG Dong, HU Zhiyong

表1 45^＃碳钢在含有不同浓度缓蚀剂的1 mol/L HCl溶液中的动电位极化参数

Table 1 Dynamic polarization parameters for 45(GB) steel in 1 mol/L HCl solutions containing different concentrations of inhibitors

Inhibitor	c / (gL^-¹)	E_corr (vs SCE) / mV	I_corr / (mAcm^-²)	b_c / (mVdec)	b_a / (mVdec)	IE / %
2-amino- benzimidazoe	Blank	-375.8	1.960	146	107	---
	0.15	-373.9	1.350	132	98.8	31.1
	0.30	-387.4	0.990	113	80.8	49.5
	0.45	-420.7	0.948	142	79.8	51.6
	0.60	-384.5	0.877	129	107	55.3
	0.75	-397.2	0.797	131	103	59.3
	0.90	-395.0	0.604	137	99.1	69.2
	Blank	-375.8	1.960	146	107	---
	0.15	-383.2	1.220	131	91.7	37.8
	0.30	-361.6	0.940	127	84.5	52.0
BSC₆T	0.45	-383.4	0.748	85.1	58.6	61.8
	0.60	-383.5	0.661	149	92.0	66.3
	0.75	-352.5	0.512	125	71.1	73.9
	0.90	-379.0	0.359	154	71.5	81.7
	Blank	-375.8	1.960	146	107	---
	0.15	-405.2	0.364	195	78.7	81.4
	0.30	-357.9	0.309	120	79.2	84.2
BSC₈T	0.45	-358.4	0.242	121	76.2	87.7
	0.60	-385.5	0.117	117	64.8	94.0
	0.75	-372.3	0.116	180	85.3	94.0
	0.90	-394.5	0.096	171	70.5	95.1