Photothermal healing performance of oxidized carbon black/epoxy vitrimer composite coating for metal protection

Synthesis and Processing of Near Infrared—Activated Vitrimer Nanocomposite Films Modified with β-Hydroxyester-Functionalized Multi-Walled Carbon Nanotubes

“…Hence, the advantages and special properties of CANs could be potentially transferred to a new generation of paints, coatings, and films for enhancing their durability, versatility, and functionality while diminishing their environmental impact. Recent examples of applications of CANs in coatings and films could be found in the development of self-healable paintings for the automotive industry [10], protective coatings for metal parts [11,12], flexible optical devices [13], reversible adhesives [14,15], soft actuators [16,17], and durable, ultra-thin and self-healable hydrophobic coatings [18].…”

“…The remote activation of exchange reactions in CANs can be attained through the modification of these matrices with dyes [10], metal nanostructures [19], and/or carbon fillers [11,15] thanks to the heat induced by the photothermal effect. The origin of the photothermal effect is the electronic excitation of a nanostructure or dye via irradiation at its characteristic absorption wavelength [20].…”

High-Loading Smart Carrier Containing 2-Mercaptobenzimidazole-Zn2+-Polydopamine with pH-Responsive Function to Fabricate High-Performance Waterborne Epoxy Anticorrosion Coatings

“…The ZSimpWin software was employed to fit the equivalent circuit, as depicted in Figure a. This circuit encompasses R s (solution resistance), R p (coating resistance), R ct (charge transfer resistance), C c (coating capacitance), and C dl (double-layer capacitance). , The observed open circuit potential (OCP) values of the electrodes exhibited a decline with prolonged immersion time, owing to the infiltration of corrosion-inducing factors through the coatings, thereby leading to the corrosion of the metal substrate. According to the data presented in Figure b, it can be observed that the OCP value of the EP coating experienced a significant decrease from −0.05 to −0.46 V SCE over the course of 20 days.…”