Affiliation:
1. Department of Chemistry, PSG College of Arts and Science, Coimbatore-641014, India *Corresponding
Abstract
In view as corrosion inhibitor, silk protein hydrolysate (SPH), a water-soluble hydrolysate obtained from silk protein (biopolymer) exhibits excellent protection to mild steel in 1 N H2SO4, especially at low concentration levels. Weight loss analysis propose a maximum efficiency for 10 ppm SPH at 303 K. Potentiodynamic polarization measurement revealed its functioning as a mixed-type inhibitor with enhanced polarization resistance. The best fits observed with Langmuir isotherm suggested the inhibitor-metal interaction to occur via physisorption mechanism. Surface examination through SEM (EDXS), water contact angle, AFM, FT-IR and Raman spectroscopy confirmed the formation of protective film.
Publisher
Asian Journal of Chemistry
Cited by
1 articles.
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