Polymer/Inorganic nanocomposite coatings with superior corrosion protection performance: A review

By S. Pourhashem, Farhad Saba, J. Duan, A. Rashidi, Fang Guan, Elham Garmroudi Nezhad, B. Hou. 2020

258 citations recorded by the source corpus.

Abstract Nanocomposite coatings based on adding inorganic nanofillers in polymer matrix are a new class of corrosion protection methods which show superior corrosion resistance and mechanical performance compared to conventional composite coatings. Inorganic nanomaterials such as metal nanopowders, metal oxides, nano-glass flakes, nitrides and carbides, and nano-calcium carbonates have significant potential for enhancing the barrier performance of polymer coatings. Herein, the effects of the above-mentioned nanomaterials on the corrosion protection performance of polymer coatings are discussed and a comprehensive review about recent studies on the corrosion resistance of these nanocomposite coatings is provided. This review clearly indicates that the characteristics of nanocomposite coatings strongly depend on the type of nanoparticles, morphology, size, specific surface area, the fraction of nanofillers, the chemical structure, the functional groups, and the interaction between nanoparticles and polymer matrix. The highest corrosion resistance can be achieved via well-dispersion of nanomaterials in the polymer matrix and there are various approaches based on the fabrication methods and physical/chemical/mechanical surface treatments to reach this goal. In addition, it is meaningful to develop nanocomposite coatings through green approaches without altering the intrinsic properties of nanofillers and without using toxic chemicals for modification of nanofillers.

Subfields: Materials Chemistry, Mechanics of Materials, Polymers and Plastics

View Paper: https://www.semanticscholar.org/paper/d26c56407b77472762c80d29f9c1db703d0fd05c