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首页> 外文期刊>International Journal of Electrochemical Science >Epoxidation Modification of Renewable Lignin to Improve the Corrosion Performance of Epoxy Coating
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Epoxidation Modification of Renewable Lignin to Improve the Corrosion Performance of Epoxy Coating

机译：可再生木质素的环氧化改性以改善环氧涂层的腐蚀性能

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The epoxidation modification of renewable lignin was achieved by using epichlorohydrin underalkaline condition. Modified lignin (ELG) was characterized by FTIR and used to improve thecorrosion performance of epoxy coatings. SEM images showed that ELG was well-dispersed in epoxycoatings, indicating that good compatibility of modified lignin with the epoxy resin. The anticorrosiveproperties of ELG/epoxy coatings coated on Q235 steel in 3.5% NaCl solution were studied bypolarization curves and electrochemical impedance spectroscopy (EIS). Compared with pure epoxycoating, the addition of ELG greatly improved the corrosion protection performance of Q235 steel.Especially, the epoxy coating with 2% ELG achieves high corrosion protection performance.
机译：在碱性条件下，使用表氯醇对可再生木质素进行环氧化修饰。 FTIR对改性木质素（ELG）进行了表征，用于改善环氧涂料的腐蚀性能。 SEM图像表明EL​​G在环氧涂料中分散良好，表明改性木质素与环氧树脂具有良好的相容性。通过极化曲线和电化学阻抗谱（EIS）研究了Q235钢在3.5％NaCl溶液中涂覆的ELG /环氧涂料的防腐性能。与纯环氧涂料相比，添加ELG大大提高了Q235钢的防腐性能，特别是2％ELG的环氧涂料具有很高的防腐性能。

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