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2 45^＃碳钢在添加不同浓度缓蚀剂的1 mol/L HCl溶液中的阻抗拟合参数

Table 2 Impedance data of 45(GB) steel in 1 mol/L HCl solutions containing different concentrations of inhibitors

Inhibitor	c / (gL^-¹)	R_s / (Ωcm²)	R_ct / (Ωcm²)	C_dl / (μFcm^-²)	IE / %
	Blank	1.622	7.695	687.9	---
	0.15	1.271	10.74	409.9	28.4%
	0.30	1.451	11.50	240.1	33.1%
2-aminobenzimidazole	0.45	1.074	12.28	223.5	37.3%
	0. 60	1.313	13.46	106.3	42.8%
	0.75	1.294	16.44	102.5	53.2%
	0.90	1.110	19.17	82.26	59.8%
	Blank	1.622	7.695	687.9	---
	0.15	1.179	15.69	199.6	50.9%
	0.30	1.116	26.89	134.1	71.4%
BSC₆T	0.45	1.323	76.29	109.3	89.9%
	0.60	1.166	103.4	91.33	92.6%
	0.75	1.300	204.7	68.53	96.2%
	0.90	1.200	329.8	17.01	97.7%
	Blank	1.622	7.695	687.9	---
	0.15	1.327	41.96	280	81.7%
	0.30	1.266	58.85	239	86.9%
BSC₈T	0.45	1.182	80.81	31.02	90.5%
	0.60	1.426	155.4	23.56	95.0%
	0.75	1.498	329.5	22.25	97.7%
	0.90	1.244	556.1	11.52	98.6%