Anti-Corrosive Properties of an Effective Guar Gum Grafted 2-Acrylamido-2-Methylpropanesulfonic Acid (GG-AMPS) Coating on Copper in a 3.5% NaCl Solution

Abstract

Guar gum grafted 2-acrylamido-2-methylpropanesulfonic acid (GG-AMPS) was synthesized using guar gum and AMPS as the base ingredients. The corrosion inhibition of copper was studied using weight loss, electrochemical, and surface characterization methods in a 3.5% sodium chloride (NaCl) solution. Studies including weight loss were done at different acid concentrations, different inhibitor concentrations, different temperatures, and different immersion times. The weight loss studies showed the good performance of GG-AMPS at a 600 mg/L concentration. This concentration was further used as the optimum concentration for all of the studies. The efficiency decreased with the rise in temperature and at higher concentrations of acidic media. However, the efficiency of the inhibition increased with the additional immersion time. Electrochemical methods including impedance and polarization were employed to calculate the inhibition efficiency. Both of the techniques exhibited a good inhibition by GG-APMS at a 600 mg/L concentration. Surface studies were conducted using scanning electrochemical microscopy (SECM), scanning electron microscopy (SEM), and atomic force microscopy (AFM) methods. The surface studies showed smooth surfaces in the presence of GG-AMPS and rough surfaces in its absence. The adsorption type of GG-AMPS on the surface of the copper followed the Langmuir adsorption model.

Synthesis and characterization of copper nanoparticle-based hydrogel and its applications in catalytic reduction and adsorption of basic blue 3

“…By grafting monomer onto the hydrogel's surface, copper nanoparticles alter its surface. The crosslinking process, which establishes covalent connections between nanoparticles and polymeric chains, imparts a granular texture to the surface of AMPS(PHE-Ce)/MC-Cu, characterized by small pores or fissures [ 49 , 50 ] which improves the hydrogel's ability to draw in and effectively eliminate dyes.

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Mesoporous Metal Oxide Films

“…Finally, there was an optimal TiO 2 -NiO ratio (99:1) in the electrode for increasing the DSSC device efficiency and electron transport. Singh et al [16] synthesized guar gum-grafted 2-acrylamido-2-methylpropanesulfonic acid (GG-AMPS) using guar gum and AMPS as the base ingredients. This material was used as a coating on copper to examine its ability to inhibit copper corrosion.…”

Biodegradable polysaccharide grafted polyacrylamide inhibitor for corrosion in CO2- saturated saline solution

“…The study improved it to 96.8% by adding 5 Mm potassium iodide (KI) to a lower GG-MMA concentration of 300 mg L −1 [ 25 ]. The research group has also investigated the GG grafted with 2-acrylamido-2-methylpropanesulfonic acid and displayed 95% anti-corrosion efficiency of copper at 600 mg L −1 in 3.5 wt% NaCl electrolyte at 35 °C [ 26 ]. The outstanding performance of two chitosan derivatives in CO 2 -saturated 3.5 wt% NaCl was elucidated by Cui et al [ 20 ], reaching 91 and 93% inhibition efficiencies for corrosion of P110 steel at 100 ppm concentration at 80 °C.…”