Synthesis of polyaniline-modified mesoporous-silica containers for anticorrosion coatings via in-situ polymerization and surface-protected etching

Abstract

An efficient type of container for anticorrosion coating based on polyaniline (PANI) modified mesoporous silica (pS) sphere has been first prepared via in-situ polymerization and surface-protected etching. The PANI-modified containers not only show higher concentration of loaded inhibitor than pS, but also protect steel well because of the PANI. The coating with 1H-benzotriazole (BTA) loaded containers shows significant anticorrosion property because of the release of BTA from containers. The structure and morphology of container are characterized by FTIR, XRD, SEM and TEM. The release of BTA from pS and PANI-modified containers is determined by UV in water. The possible self-healing anticorrosion performances are evaluated by EIS and polarization curves which indicate that the coating including BTA-loaded containers performs best. The strategy of modifying pS by PANI is effective and successful.

Self-Repairing Composites for Corrosion Protection: A Review on Recent Strategies and Evaluation Methods

“…are reported to have efficient healing agent/inhibitor storing capability. Mesoporous materials also showed excellent hosting ability [19,20,21].…”

A Fluorescent Benzo[g]isoquinoline‐Based HIF Prolyl Hydroxylase Inhibitor for Cellular Imaging

“…Various small‐molecule PHIs, mostly analogues/competitors of 2OG, have been described (reviewed by Rabinowitz) . Among these are compounds that have been, or still are, subject of clinical trials, FG‐2216, FG‐4592 (Roxadustat), GSK1278863 (Daprodustat), and BAY‐85‐3934 (Molidustat), which we considered as starting points for the development of a PHD‐selective fluorescing inhibitor (Figure ) …”

“…In one line of investigation, we focused on 2‐(1‐chloro‐4‐hydroxyisoquinoline‐3‐carboxamido)acetic acid (ICA or FG‐2216) . Based on our experience with this isoquinoline ring system, an extended aromatic ring system, as present in (1‐chloro‐4‐hydroxybenzo[ g ]isoquinoline‐3 carbonyl) glycine ( 6 ; BCA), was identified as a promising candidate for a PHI manifesting fluorescence properties.…”

Preparation and Anti-Corrosive Properties of Waterborne Epoxy Composite Coating Containing Graphene Oxide Grafted with Sodium Tripolyphosphate

“…However, some micro-holes and cracks will occur during the curing process of waterborne epoxy coating, which lead to reduction of coatings' anti-corrosive properties. One of the effective methods for improving the corrosion resistance of the waterborne epoxy coating is adding nano pigments, such as mesoporous materials [3][4][5][6][7][8], layered materials [9][10][11], metal-organic frameworks [12,13] and so on. In our previous work, ZSM-5 [14], mesoporous-TiO 2 [15,16], layered double hydroxides and metal-organic frameworks [17] have been investigated as anti-corrosive pigments.…”