Study on anti-corrosion performance and mechanism of epoxy coatings based on basalt flake loaded aniline trimer
| Autor: | Qing-xian Yue, Xing-long Li, Qing-yan Gao, Tai-jiang Gui, Hai-bin Yu, Li Yue, Yu-yu Wang, Zhi Cao, Rui Ding, Lian-feng Wu, Xin-yu Li, Ya-nan Wang, Peng Han, Jing Lv, Wang Gao, Xiao-dong Zhao, Xiao Wang, Ai-min Wang |
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| Rok vydání: | 2021 |
| Předmět: |
Inert
Materials science Anti-corrosion Trimer Epoxy Surfaces Coatings and Films Corrosion Corrosion inhibitor chemistry.chemical_compound Colloid and Surface Chemistry Aniline chemistry Chemical engineering visual_art Materials Chemistry visual_art.visual_art_medium Physical and Theoretical Chemistry Dispersion (chemistry) Biotechnology |
| Zdroj: | Colloid and Interface Science Communications. 45:100505 |
| ISSN: | 2215-0382 |
| DOI: | 10.1016/j.colcom.2021.100505 |
| Popis: | The main protection mechanism of anti-corrosion coatings was to shield and hinder corrosive media. When inorganic flake fillers were added to improve the anti-corrosion performance of the coatings, it was necessary to solve the problem of inorganic-organic compatibility. This paper combined the barrier properties of flaky and chemically inert basalt scales with the corrosion inhibition of aniline trimers, and prepared aniline trimers modified basalt scales to improve the anticorrosion performance of the coatings. Aniline trimer was conducive to the compatibility and dispersion of basalt flakes in epoxy resin. The enhancement of shielding and anti-corrosion performance of the coatings was attributed to the dispersed distribution of basalt flakes, which reduced the water content and diffusion rate in coatings. Aniline trimer acted as the corrosion inhibitor. When corrosive media penetrated the coatings, it adsorbed on the metal surface and formed protective films, thereby enhancing the corrosion resistance of the coatings. The aniline trimer modified basalt flakes increased the anti-corrosion resistance of epoxy coatings by two orders of magnitude, and its optimal mass content was about 10%. |
| Databáze: | OpenAIRE |
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