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首页> 外文期刊>Journal of Applied Polymer Science >Reduced graphene oxide/silica nanocomposite-reinforced anticorrosive fluorocarbon coating
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Reduced graphene oxide/silica nanocomposite-reinforced anticorrosive fluorocarbon coating

机译：氧化石墨烯氧化物/二氧化硅纳米铬复合材料加固防腐氟碳涂层

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摘要

Reduced graphene oxide-silica (rGO/SiO2) nanocomposite filler was prepared with a ball milling process and then modified using a coupling agent of NH2C3H6Si(OC2H5)(3)(KH-550) to improve its dispersion in the fluoroethylene vinyl ether (FEVE) coating. The surface properties and morphologies of the modified rGO/SiO2(M-rGO/SiO2) nanocomposite filler and M-rGO/SiO2-reinforced FEVE coating were characterized by using Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM). Electrochemical impedance spectroscopy (EIS) and Tafel polarization curves were applied to illustrate the corrosion resistance of the coating. The results showed that the M-rGO/SiO(2)composite can disperse well in the coating and efficiently extend the corrosion path, enhancing the anti-corrosion property of the FEVE coating. Therefore, the |Z|(0.01 Hz)of M-rGO/SiO(2)reinforced FEVE coating maintained at around 10(10) omega center dot cm(2)in the 30 days test cycle and a protection efficiency of up to 95.18% was achieved.
机译：采用球磨法制备了还原氧化石墨烯-二氧化硅（rGO/SiO2）纳米复合填料，然后使用NH2C3H6Si（OC2H5）（3）（KH-550）偶联剂对其进行改性，以改善其在氟乙烯基醚（FEVE）涂层中的分散性。采用傅立叶变换红外光谱（FT-IR）和扫描电子显微镜（SEM）对改性rGO/SiO2（M-rGO/SiO2）纳米复合填料和M-rGO/SiO2增强FEVE涂层的表面性质和形貌进行了表征。电化学阻抗谱（EIS）和塔菲尔极化曲线被用来说明涂层的耐腐蚀性。结果表明，M-rGO/sio2复合材料能很好地分散在涂层中，有效地延长了腐蚀路径，提高了FEVE涂层的耐腐蚀性能。因此，在30天的试验循环中，M-rGO/SiO（2）增强FEVE涂层的| Z |（0.01 Hz）保持在10（10）Ω中心点厘米（2）左右，保护效率高达95.18%。

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