Functionalized Graphene Promoted Photocured Waterborne Acrylic/Polyaniline Conductive Anticorrosion Coatings
International Core Journal of Engineering, (2026), Vol.12, No.4, pp.377-384
Published: April 14, 2026
Abstract
Poor compatibility between graphene and polymer matrices impedes composite coatings from simultaneously meeting bipolar‑plate performance requirements for conductivity and corrosion resistance. To address this, a two‑step graphene functionalization was developed that retains high electrical conductivity while enabling the graphene to participate in the photocuring reaction and thereby strengthen interfacial bonding with the resin. A ternary composite containing 71wt% functionalized graphene (FG) and 11.8wt% polyaniline (PANI) exhibited a high electrical conductivity of 124.9 S·cm-1 and a low interfacial contact resistance (ICR) of 16.18 mΩ·cm2. Increasing the crosslink density between FG and the waterborne acrylic resin (WAR) reduced the corrosion current density (Icorr) to 0.56 μA·cm-2. Property characterization indicates that PANI performs a dual role in the composite: it cooperates with FG to form continuous conductive pathways and fills coating voids while passivating the substrate, thereby enhancing barrier performance.
Keywords:
Functionalized Graphene; Photocuring; Polyaniline; Composite Coating; Electrical Conductivity; Corrosion Protection.
APA Citation:
Hui Sun (2026). Functionalized Graphene Promoted Photocured Waterborne Acrylic/Polyaniline Conductive Anticorrosion Coatings. International Core Journal of Engineering, 12(4), 377-384. https://doi.org/10.6919/ICJE.202604_12(4).0040
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