Corrosion Inhibition of Aluminium in HCl by Amine Modified Epoxy Resin

Author:

Oki Makanjuola12ORCID,Oki Kayode3,Otaigbe John4,Otikor Samuel4

Affiliation:

1. Institute of Petroleum Studies, University of Port Harcourt, PMB 2, Choba, Port Harcourt 500102, Rivers State, Nigeria

2. Department of Chemical Sciences, Oduduwa University, Ipetumodu, Ile-Ife 220371, State of Osun, Nigeria

3. Technical Department, Greenfield-Oaks Limited, London SE25 4HL, UK

4. Department of Pure and Industrial Chemistry, University of Port Harcourt, PMB 5323, Port Harcourt 500102, Rivers State, Nigeria

Abstract

N-Butyl amine has been grafted unto Dow epoxy resin. The product was evaluated as an acid inhibitor by gravimetric techniques. The reduction in corrosion of aluminium in 1 M HCl solution was 92% at and 83% at with an inhibitor concentration of 100 ppm. The corrosion rate at this concentration was and mm/yr at and . For the specimens in HCl without inhibitor at 10-hour immersion period, the corrosion rate was and mm/yr, respectively, at and . Data obtained correlate with Langmuir isotherm.

Publisher

Hindawi Limited

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