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Abstract

Recycling of some plastic waste as green corrosion inhibitors for steel in 1Mphosphoric acid

Author(s): R.S.Abdel Hameed, Naser S.Elmetery, Nawaf F.Alshemary,HassanA.Shehata

The reactionof soft drink bottleswaste with ethylene di amine (EA)and ethylene glycol (EG)in the presence of sodium acetate and manganese acetate as a catalyst, the depolymerization products was separated,characterized, and evaluated as corrosion inhibitors of C-steel alloy in 1M phosphoric acid corrosive medium using simple chemical technique(weight loss) and electrochemical technique (open circuit potential)at different concentration of the used inhibitors derived from soft drink waste. The effect of temperature on the corrosion inhibition efficiency was studied;the inhibition efficiency increase with increasing the concentration of the inhibitors and decreases with increasing the temperature, the inhibition occurs through adsorption of the inhibitor molecules on the metal surface without modifying the mechanism of corrosion process. The adsorption of the inhibitor on Steel surface was found to follow the Langmuir adsorption isotherm. Thermodynamic function of activation and adsorption was computed.


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Citations : 468

Materials Science: An Indian Journal received 468 citations as per Google Scholar report

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