A superior corrosion-protective coating based on an insulated poly-2-amiothiazole noncovalently functionalized graphene. (January 2021)

• Record Type: Journal Article
• Authors: Luo, Xiaohu; Zhou, Chengliang; Chen, Bo; Wu, Dawang; Li, Ji; Kong, Junjun; Chen, Dongchu; Liu, Yali
• Is Part Of: Corrosion science. Volume 178(2021)
• Publication Date: 2021-01
• Subjects: Reduced graphene oxide -- poly-2-amiothiazole (P-AT) -- thermal stability -- corrosion pro -- tection; Corrosion and anti-corrosives -- Periodicals; 620.11223
• DOI: 10.1016/j.corsci.2020.109044
• Languages: English
• ISSNs: 0010-938X

Abstract

Graphical abstract: Highlights: Poly-2-amiothiazole was successfully prepared to noncovalently modify the graphene (P-AT@rGO) via the in-situ polymerization. P-TA@rGO acts as a functional nanofiller and an enhanced curing agent in the epoxy composite coatings. The epoxy/P-AT@rGO composite coatings exhibit outstanding anticorrosion performance. Abstract: In this work, an insulated poly-2-amiothiazole was successfully prepared to noncovalently modify the graphene (P-AT@rGO) via an in-situ polymerization. The superior anticorrosive performance of epoxy composite coatings was well demonstrated. Results exhibit that the epoxy composite coatings with 2.5 wt.% P-AT@rGO still maintain 2. 81 × 10 8 Ω cm 2 of the polarization resistance after 30-days immersed in a 5.0 wt.% NaCl solution. Significantly enhanced protective performance of the epoxy composited coatings is attributable to the low electrical conductivity and the good dispersion of P-AT@rGO, the richer crosslinking densities, and the improved hydrophobicity.