Polyaniline based corrosion inhibitors for conventional organic coatings

Abstract

ABSTRACT

Synthesis and characterization of polyaniline–hydrotalcite–graphene oxide composite and application in polyurethane coating

“…The presence of PAN in the structure of the composite PAN–HG helps to enhance the protection on the CT3 steel surface due to the complicated protection mechanism of PAN. Those mechanisms are anodic protection, 45–50 cathodic protection, 50–53 controlled inhibitor release, 54–56 and barrier protection. 72 …”

“…The presence of PAN in the structure of the composite PAN-HG helps to enhance the protection on the CT3 steel surface due to the complicated protection mechanism of PAN. Those mechanisms are anodic protection, [45][46][47][48][49][50] cathodic protection, [50][51][52][53] controlled inhibitor release, [54][55][56] and barrier protection. 72 From the results of corrosion protection, both 1PAN-HG and 2PAN-HG have the same corrosion protection.…”

“…The PAN-LS layer at the contact surface of the paint-substrate will convert from the LS to ES state. 47,49,50,67,68,70 So that, aer forming the surface passivation layer, electrons are continuously transferred to the external environment, thereby inhibiting the corrosion reaction occurring. 72 Moreover, HG and PAN-HG can control the corrosion reaction rate due to the ion-exchangeability of both PAN and HG.…”

“…49 PAN was widely used in various resins, such as epoxy, alkyd, acrylic, and efficiency. [49][50][51] When doping with camphor sulphonate, phenyl phosphonate and iodine, the doped PAN gives a double protection effect. 49,58 At rst, the redox reaction that occurs between Fe and PAN leads to the reduction of PAN and the release of the doped anion.…”

Associated Polymers, Solvents and Doping Agents to Make Polyaniline Electrospinnable

“…Amongst these polymers, polyaniline (PANI) has been studied for many applications [3] such as chemical sensing [4][5][6], logic circuit components [7], electromagnetic shielding [8], and anticorrosion coating [9] due to its uncomplicated synthesis, room temperature process, high conductivity and relative environment stability [10]. Polyaniline has the general polymeric structure shown in fig.…”