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首页> 外文期刊>International Journal of Electrochemical Science >Preparation of double linked waterborne epoxy resin coating using Titanium curing agent and aminopropyltriethoxysilane and its anticorrosive properties
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Preparation of double linked waterborne epoxy resin coating using Titanium curing agent and aminopropyltriethoxysilane and its anticorrosive properties

机译：用钛固化剂和氨基丙基三乙氧基硅烷制备双链水性环氧树脂涂料及其防腐特性

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摘要

To obtain a waterborne coating with excellent anticorrosion performance, a titanium ion-containing curing agent and polysiloxane were used separately and together to cure epoxy resin coatings. Fourier transform infrared (FTIR) spectroscopy was employed to investigate the curing process. An immersion test in NaCl solution was performed, and then, the morphology changes of different coatings were observed by field emission scanning electron microscopy (FESEM). Electrochemical impedance spectroscopy (EIS) and copper-accelerated acetic acid salt spray (CASS) testing were conducted to characterize the corrosion resistance of the coatings. The FTIR spectra showed that when both agents were used, the curing process of the resin involved three stages, which resulted in much denser crosslinks than when using a single agent. After immersion, numerous cracks were observed on coatings cured with a single agent, whereas the double-agent-cured coating remained integrated. The impedance of the double-agent-cured coating reached 8.5×108 Ω cm2 and remained as high as 1.7×108 Ω cm2 , even after 40 days of immersion.
机译：为了获得具有优异防腐性能的水性涂层，单独使用含钛离子固化剂和聚硅氧烷，并在一起进行固化环氧树脂涂层。使用傅里叶变换红外（FTIR）光谱研究来研究固化过程。进行NaCl溶液中的浸渍试验，然后，通过现场发射扫描电子显微镜（FeSEM）观察不同涂层的形态变化。进行电化学阻抗光谱（EIS）和铜加速乙酸盐喷雾（CASS）测试以表征涂层的耐腐蚀性。 FTIR光谱表明，当使用两个试剂时，树脂的固化过程涉及三个阶段，这导致多于使用单一试剂时的更密集的交联。在浸入后，在用单一剂固化的涂层上观察到许多裂缝，而双药固化涂层保持一体化。双剂固化涂层的阻抗达到8.5×108Ωcm2，仍高至1.7×108Ωcm2，即使在浸渍40天后也是如此。

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