Anticorrosive properties of polyamide on thecarbon steel


A new geminisurfactant polyamide derived from Hexamethylenediamine (HMDA) and ethylenediamintetraaceticacid (EDTA) 2,2'-(1,2-diamino-8,15-dioxo-7,10,13,16-tetraazadocosane-10,13-diyl) diacetic acid was synthesized and characterized by FTIR and NMR. A series of electrochemical measurements, including corrosion potential and corrosion current has been made on polyamide-coated carbon steel samples in corrosive environment. Results showed that polyamide can offer some degrees of protection in the corrosive environments.The corrosion study of this polymer outline that a new surfactant has a good resistanace to the corrosion of carbon steel in 0.1 Msolution of HCl, which can indicate to uses as anti-corrosion materials.