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Polyethylene Glycol as a Corrosion Inhibitor for Lead and Lead Free Solders in Acidic Medium

Vani R1, Praveen B M2, and Girish Kumar3
1.Department of Mechanical Engineering, Dr. MVSIT, Thodar, Moodbidri, Karnataka, India
2.Department of Chemistry, Srinivas School of Engineering, Mukka, Mangalore, India
3.Department of Mechanical Engineering, SDMIT, Ujire, India

Abstract—The inhibition effect of Poly Ethylene Glycol (PEG) as corrosion inhibitor for lead and lead free solders in 1 N HCl solution was investigated by weight loss method and electrochemical methods. The inhibition efficiency was increased with increase in inhibitor concentration up to optimum concentration for lead and lead free solders in acidic medium. Polarization measurements reveal that PEG acts as a mixed-type inhibitor. PEG was found to be better inhibitor for lead free solders.

Index Terms—Inhibitor, Polyethylene glycol, Inhibitor efficiency, Polarisation

Cite: Vani R, Praveen B M, and Girish Kumar, "Polyethylene Glycol as a Corrosion Inhibitor for Lead and Lead Free Solders in Acidic Medium," International Journal of Mechanical Engineering and Robotics Research, Vol. 4, No. 1, pp. 128-135, January 2015.

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