The effect of concentration and temperature on the activities of polyvinyl alcohol (PVA) as iron corrosion inhibitor in solution of NaCl

Corrosion inhibitors are a practical and cost-effective solution for corrosion control in pipe systems. In a 1% NaCl solution, the activity of Polyvinyl alcohol as an iron corrosion inhibitor was investigated. The Wheel test method was used to investigate the activity of Polyvinyl Alcohol (PVA) as a...

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Bibliographic Details
Main Authors: Sudiarti, Tety, Pitriah, Siti Robiah, Rohmatulloh, Yusuf, Supriadin, Asep
Format: Conference Proceeding
Language:English
Subjects:
Adsorption
Corrosion inhibitors
Corrosion prevention
Corrosion rate
Iron
Polyvinyl alcohol
Scanning electron microscopy
Sodium chloride
Surface chemistry
System effectiveness
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Summary:Corrosion inhibitors are a practical and cost-effective solution for corrosion control in pipe systems. In a 1% NaCl solution, the activity of Polyvinyl alcohol as an iron corrosion inhibitor was investigated. The Wheel test method was used to investigate the activity of Polyvinyl Alcohol (PVA) as an iron corrosion inhibitor in a 1% NaCl solution with variations in concentration and temperature. SEM study of iron's surface (Scanning Electron Microscopy). The results showed that PVA compounds had the best inhibitory activity at a concentration of 8 ppm and a temperature of 25°C, with an efficiency of 53.88%. The adsorption properties of PVA agree with the Langmuir adsorption isotherm, with a free adsorption energy of −34.028 kJ / mol. Scanning Electron Microscopy (SEM) surface examination revealed that PVA might reduce corrosion rates on iron surfaces with fewer pores than without inhibitors.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0113153