وجدي ابراهيم احمد علي الدجدج
أستاذ متفرغ
Synthesis and Evaluation of modified Chitosan – Gluteraldehyde as corrosion inhibitor for mild steel in acidic medium
Egyptian Journal of Chemistry • 2024
معلومات البحث
المؤلفون
Mahmoud Muhammed ElDesouky,ElSayed Ali Fouad,
Wagdy Eldougdoug , Mohamed Abd El-Moneim
الكلمات المفتاحية
Chitosan; Gluteraldehyde; HCl; Steel; Potentiodynamic polarization.
المجلة العلمية
Egyptian Journal of Chemistry
الناشر
الجمعية الكيميائية المصرية
المجلد
66
العدد
8
الصفحات
561 -568
publication.type
Local
رابط البحث
Open Link
المواد المرفقة
Not Available
الملخص
A new inhibitor derived from Chitosan and gluteraldehyde was synthesized and the efficiency of the synthesized inhibitor was
screened out by electrochemical and surface scanning analysis in 0.24 M HCl. The Chitosan derivative was identified by
Fourier-transformed infrared (FTIR) and the steel surface examinations were carried out via scanning electron microscope
(SEM) and energy dispersive X-ray. The results of efficiency tests show very good performance as corrosion inhibitor. The
corrosion rate lowered with the concentration increase of the new synthesized inhibitor. About 98.4% inhibition efficiency was
measured by using 1000 ppm of the new synthesized derivative. The polarization results showed that the new synthesized
derivatives have mixed inhibition effect. Langmuir isotherm was found to be the most fitted to represent the adsorption nature
of the inhibitor. SEM analysis proved the presence of protective film formed by new synthesized Chitosan derivative (CHgluteraldehyde) on the metal surface.
screened out by electrochemical and surface scanning analysis in 0.24 M HCl. The Chitosan derivative was identified by
Fourier-transformed infrared (FTIR) and the steel surface examinations were carried out via scanning electron microscope
(SEM) and energy dispersive X-ray. The results of efficiency tests show very good performance as corrosion inhibitor. The
corrosion rate lowered with the concentration increase of the new synthesized inhibitor. About 98.4% inhibition efficiency was
measured by using 1000 ppm of the new synthesized derivative. The polarization results showed that the new synthesized
derivatives have mixed inhibition effect. Langmuir isotherm was found to be the most fitted to represent the adsorption nature
of the inhibitor. SEM analysis proved the presence of protective film formed by new synthesized Chitosan derivative (CHgluteraldehyde) on the metal surface.