Anticorrosion properties of polyaniline-coated pigments in organic coatings

Anticorrosion efficiency of zinc-filled epoxy coatings containing conducting polymers and pigments

“…The protonated form and the corresponding base also exist for emeraldine and pernigraniline. The most typical property, however, is the transition between the conducting green species and the nonconducting blue form, occurring at pH 5-6 [21]. The anion in the polyaniline structure is derived from the acid used for the protonation.…”

“…The product was dried, first in air and then in a drier at 60 • C. , also dissolved in 0.2 M orthophosphoric acid, was added to initiate polymerization of the aniline at room temperature. The suspension was stirred for 1 h, during which aniline polymerization on the surface of the pigment particles took place [21]. The next day the solid was collected on a filter and rinsed with 0.2 M phosphoric acid followed by acetone.…”

The effect of polymer morphology on the performance of a corrosion inhibiting polypyrrole/aluminum flake composite pigment

“…In this case, the passivation of steel by polyaniline resulted in improved anticorrosion performance. Several studies have been performed to synthesize and evaluate CPCCs for the corrosion protection of metals and their alloys [42,43].…”

Passivation of Low Carbon Steel Due to Conducting Polyaniline Based Paint

“…In this work, the corrosion tests were carried out in a condenser chamber with continuous water condensation or humidity with sulphurdioxide and in a salt mist cabinet. It has been observed that polynailine coatings of pigments in all cases _______________________________________________________________________________________ Volume: 05 Issue: 11 | Nov-2016, Available @ https://ijret.orgimproved the anticorrosion properties and graphite coated with PANI performed the best among all the formulations [12]. C.Aleman et al investigated the corrosion protection imparted by epoxy paints modified by the addition of polyanilineemeraldine base and Zn 3 (PO 4 ) 2 and observed that epoxy with PANI -emeradline base offered higher protection to mild steel compared to unmodified epoxy paints [13].E.Armelin et al employed polyanilineemeraldine salt, polyanilineemeraldine base, polyaniline composite black, polypyrrole composite with carbon black and poly (3,4-ethylenedioxythiophene) doped with poly (styrene sulphonate) and found out that corrosion protection to mild steel offered by formulations modified by conducting polymers and especially polynilineemeraldine base was significantly higher than that of the unmodified paint [14].…”