Polymer-Based Nanocomposite Coatings for Anticorrosion Applications

Abstract

The successful use of polymeric coatings for corrosion prevention or mitigation is often hindered by their inherently porous microstructure that fails to resist the ingress of detrimental species and/or by their vulnerability to damage by surface abrasion, wear, or scratches. Incorporation of nanomaterials in polymeric coatings can greatly improve their barrier performance. While the last decade has seen a substantial amount of research on polymeric nanocomposite coatings, the knowledge underlying the critical roles nanomaterials play remains scattered. This chapter discusses the utilization of nanotechnology to greatly enhance the properties of polymer-based coatings for anticorrosion applications, by modifying the microstructure of the coating bulk or endowing it with additional functionality. It starts with a brief discussion of the relevant knowledge base, including: microstructure of polymer nanocomposites, infl uence of nanomodifi cation on properties of polymeric coatings, fabrication approaches, and the use of polymeric nanocoating as a carrier for corrosion inhibitors. It also provides a review of technological advances in the use of nanotechnology to produce high-performance polymeric coatings with outstanding corrosion resistance and other relevant properties. The chapter concludes with a snapshot review of the advanced characterization of nanocomposite coatings for corrosion protection.

Polymer Nanocomposites via Click Chemistry Reactions

“…Polymer nanocomposite coatings have been thoroughly investigated in which their applications span from imaging, anticorrosion, marine, smart packaging materials, automotive industry to high technology applications [ 145 , 146 , 147 ]. Nanocomposite coatings can provide high-efficiency gas barrier to the substrate foil [ 148 ] and they can provide superior anti-scratch and anti-corrosion properties.…”

Nanocomposites: Recent Trends and Engineering Applications

“…Coating thickness generally based on process factors including dipping time, temperature, nature of surfactant, pureness of nanomaterial, etc. Nano structured coatings based on epoxy/clay on steel substrates, which has excellent scratch strength compare to the pristine epoxy coating [36]. These types of coatings are finest candidates for several applications, like pipe line coatings for marine applications, and construction, thermal barriers for aerospace, automobile applications, also used for decorative purpose, textiles, etc.…”

Insulating Thermal and Water-Resistant Hybrid Coating for Fabrics

“…The resulting hybrid materials form very stable chemical bonds on surfaces [5]. The strong chemical bonding inherent within their siloxane or metal-oxane networks as well as their thermal stability promote inertness against chemical and thermal attack, hence, their potential as protective coatings [6]. Unlike classical nanocomposites, hybrid organic-inorganic materials have been classified based on cohesion between the two phases (organic and inorganic) provided by strong covalent or iono-covalent bonds (Class I) as well as van der Waals, hydrogen, or ionic bonds (Class II) [7].…”