Grafted Biopolymers as Corrosion Inhibitors

18 Grafted Biopolymer Composites and Nanocomposites as Sustainable Corrosion Inhibitors

Syed Ali Abdur Rahman¹, P. Priyadharsini², R. V. Deeksha², and J. Arun^2,*

¹ Department of Biotechnology, Sathyabama Institute of Science and Technology, Jeppiaar Nagar (OMR), Chennai – 600 119, Tamil Nadu, India ² Centre for waste management – International Research Centre, Sathyabama Institute of Science and Technology, Jeppiaar Nagar (OMR), Chennai – 600 119, Tamil Nadu, India ^* Corresponding author

18.1 Introduction

Corrosion is a serious issue, mainly petroleum-based industrial sectors are affected because of the substantial amounts of metallic assets used across the supply chain. The annual expense of corrosion and its impacts are predicted to be 3 to 5% of the global GDP for wealthy countries [1]. The disadvantages of ordinary coatings include a greater risk of fracturing and collapse due to inadequate coupling between both the coatings’ components and metallic substrates [2]. Choice of materials, coverings and liners, cathodic protection, and corrosion inhibitors are some of the corrosion mitigation measures used by several industries. The utilization of biopolymeric or composite coatings intended to reduce corrosion protection to acceptable standards is among the most promising approaches for overcoming the limitations. Polymer coatings must increase their adhesion, mechanical characteristics, and barrier effect to improve their corrosion protection efficacy [1, 3].

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