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首页> 外文期刊>International Journal of Electrochemical Science >Long Term Corrosion Protection of Epoxy Coating Containing Tetraaniline Nanofiber
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Long Term Corrosion Protection of Epoxy Coating Containing Tetraaniline Nanofiber

机译：含四苯胺纳米纤维的环氧涂料的长期腐蚀防护

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摘要

A supermolecular assembly chemistry was applied to aniline based oligomer, tetraaniline (TANI), in 1M HCl aqueous solution to obtain nanofibrous emeraldine salt of TANI (TANI-ES), making it suitableas novel anticorrosive inhibitor for primer coatings. Epoxy coating pigmented with 0.5 wt% and 1 wt%TANI-ES were then prepared by curing reaction of epoxy E44, polyamide hardener with the existenceof TANI-ES. The corrosion behavior of the coatings without and with 0.5 wt% and 1.0 wt% TANI-ESon Q235 steel in the 3.5 wt% NaCl solution was investigated by open circuit potential (OCP) test,electrochemical impedance spectroscopy (EIS) measurements, scanning vibrating electrode technique(SVET) as well as salt spray test. Results suggested that synthesized epoxy composite coatings,particularly with 0.5 wt% TANI-ES nanofiber coating, exhibited exceptional anticorrosion capabilitycompared with the pure epoxy E44 coating. The salt spray test exhibited that 0.5 wt% conductingpolymer coating possessed excellent salt-fog-resistance property with slight rust formation andblistering resistance on the steel sheets.
机译：将超分子组装化学应用于1M HCl水溶液中的苯胺基低聚物四苯胺（TANI），以获得TANI的纳米纤维祖母绿盐（TANI-ES），使其适合用作底漆涂料的新型防腐剂。然后通过在存在TANI-ES的情况下使环氧树脂E44，聚酰胺硬化剂固化反应，制备出含0.5 wt％和1 wt％TANI-ES的环氧涂料。通过开路电势（OCP）测试，电化学阻抗谱（EIS）测量，扫描振动电极研究​​了在3.5重量％的NaCl溶液中无0.5重量％和1.0重量％TANI-ES的Q235钢涂层的腐蚀行为。技术（SVET）以及盐雾测试。结果表明，合成的环氧复合涂料，特别是含有0.5 wt％TANI-ES纳米纤维涂料，与纯环氧E44涂料相比，具有优异的防腐性能。盐雾试验表明，0.5％（重量）的导电聚合物涂层具有优异的耐盐雾性能，在钢板上具有轻微的防锈和抗起泡性。

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