淀粉接枝共聚物对Zn的缓蚀性能

王亚婷, 王棵旭, 高鹏翔, 刘冉, 赵地顺, 翟建华, 屈冠伟

Inhibition for Zn Corrosion by Starch Grafted Copolymer

WANG Yating, WANG Kexu, GAO Pengxiang, LIU Ran, ZHAO Dishun, ZHAI Jianhua, QU Guanwei

表3 Zn在不同质量浓度St-g-PAM下的阻抗参数

Table 3 Impedance parameters of zinc in 1.0 mol/L HCl solutions with different concentrations of St-g-PAM

c mg·L^-1	R_s Ω·cm²	R_ct Ω·cm²	a	C_dl μF·cm^-2	η %
0	2.574	65.09	0.9165	142.56	---
10	2.421	246.6	0.8921	108.60	73.61
20	1.823	361.2	0.9212	85.40	81.98
30	3.854	520.6	0.8618	74.72	87.50
40	2.094	679.7	0.9067	67.30	90.42
50	2.248	834.5	0.9183	55.61	92.20