Water-based acrylic copolymer as an environment-friendly corrosion inhibitor onto carbon steel in 1 M H2SO4 in static and dynamic conditions

Journal of Materials Science: Materials in Engineering

Table 2 Polarization parameters and the corresponding inhibition efficiency of mild steel corrosion in 1 M H₂SO₄containing different concentration of inhibitor at 25 ± 2°C

Concentration(ppm)	E_corr(mV vs. SCE)	i_corr(mAcm⁻²)	β_a(mV/dec)	β_c(mV/dec)	θ	η(%)
Blank	−482	0.606	101	102	-	-
50	−481	0.353	69	89	0.42	41.7
200	−474	0.255	64	81	0.58	57.7
400	−477	0.152	63	82	0. 75	74.8
600	−478	0.144	77	89	0.76	76.1