The Effect of Concentration and Temperature on The Activities of Polyethylene Oxide (PEO) as Iron Corrosion Inhibitor in Electrolyte Solution of NaCl 1% Tety Sudiarti, Anggi Yulian Silviyanadewi, Asep Supriadin
UIN Sunan Gunung Djati Bandung
Abstract
The study of Polyethylene Oxide (PEO) activity as a corrosion inhibitor in 1% NaCl electrolyte solution was carried out by the Wheel Test method with variations in concentration and temperature. The results showed that polyethylene oxide (PEO) had the optimum inhibitory activity at a concentration of 16 ppm, with inhibition efficiency of 80.15% at 25˚C. Polyethylene Oxide has adsorption properties which are in accordance with the Langmuir adsorption isotherm with free adsorption energy of 21.385 kJ / mol. The results of electron microscopy (SEM) analysis showed that polyethylene oxide could inhibit corrosion rates with iron surfaces that had fewer pores than without inhibitors.
Keywords: corrosion inhibitor; Polyethylene Oxide; Wheel Test; SEM
