Preparation and properties of self-healing anticorrosive coating on methyl cellulose core-shell fibers

This work reports a core-shell fiber coating with self-healing and anticorrosive properties, which combined fibers with a silicone coating (PDMS) material for the corrosion protection of carbon steels. We innovatively encapsulated oleic acid (OA) into the methyl cellulose (MC) shell material by using electrostatic spinning. EIS, SKP and FTIR mapping test indicate that the MC-PDMS coating shows an excellent self-healing performance in 3.5 wt% NaCl solution (pH = 11.7). OA protective film was successfully formed in the damaged area. It has an important reference value for the development of new self healing materials in the field of marine corrosion protection. (c) 2021 Elsevier B.V. All rights reserved.

Automated summary

This work presents a core-shell fiber coating with self-healing and anticorrosive properties, combining fibers with a silicone coating material for corrosion protection of carbon steels. Through electrostatic spinning, oleic acid was encapsulated into the methyl cellulose shell material, leading to an excellent self-healing performance in a 3.5wt% NaCl solution with pH 11.7. The formation of an oleic acid protective film in the damaged area has significant reference value for the development of new self-healing materials in marine corrosion protection.