Lai Hin Tan, Sachin Sharma Ashok Kumar, Ramesh kasi and Ramesh T. Subramaniam
Mots-clés : Adhesion, corrosive agent, cost-efficient, cathodic protection, anodic protection, hydrophobic
Résumé :
<p class="MsoNormal" style="text-align:justify;line-height:150%">Epoxy
based nanocomposite coatings have gained significant attention as advanced
organic protective systems due to their ability to overcome the inherent
limitations of conventional polymer coatings in corrosive environments. This
review focuses specifically on recent developments in epoxy nanocomposite
coatings, emphasizing the incorporation of nanoscale fillers such as graphene
derivatives, metal oxide nanoparticles, nanoclays, layered double hydroxides,
and hybrid nanostructures, and their influence on corrosion protection
performance. The discussion is centered on structure property relationships,
including nanoparticle dispersion, interfacial bonding, barrier enhancement
mechanisms, and electrochemical stability, rather than reiterating general
corrosion fundamentals. Recent studies demonstrate that the introduction of
well dispersed nanofillers into epoxy matrices significantly reduces
electrolyte permeation, enhances coating integrity, and delays coating
degradation under aggressive exposure conditions. In addition, multifunctional
nanocomposite systems incorporating self-healing agents and corrosion
inhibitors are critically examined for their role in extending service life and
improving long term durability. Sustainable developments, including waterborne
epoxy nanocomposites and environmentally benign nanofillers, are also evaluated
with respect to their corrosion resistance performance, processing challenges,
and industrial applicability. By consolidating and critically analysing recent
nanocomposite focused literature, this review identifies current limitations,
unresolved challenges, and future research directions in the design of epoxy-based
nanocomposite coatings for advanced corrosion protection applications.</p>
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