A Comprehensive Study on Biopolymers as Green Corrosion Inhibitors

Abstract

Chemical plants, oil industries, industries of manufacture, and numerous other metal-using sectors have a serious challenge with corrosion. Corrosion is a natural process wherein a metal deteriorates on interacting with its surroundings. Among the many strategies used to reduce steel corrosion in acidic environments, using inorganic/organic inhibitors is a traditional technique. However, most are non-biodegradable, costly, and hazardous to the environment. Due to the harmful effects of chemicals and a growing consciousness of environmental issues, research efforts have focused on creating inexpensive, non-toxic, biodegradable, and environmentally friendly inhibitors. In recent years, natural polymers have received significant interest for their corrosion-prevention properties. They are readily available, biocompatible, harmless, inexpensive, and have no negative side effects. This article provides a cyclopedic study of the use of different biopolymers including  plant extracts as green corrosion inhibitors for mild steel in the corrosion prone industrial sectors.