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首页> 外文期刊>International Journal of Electrochemical Science >Preparation of a Natural Rubber Nanocomposite Coating based on Fe3O4@Carbon materials and their Corrosion Resistance
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Preparation of a Natural Rubber Nanocomposite Coating based on Fe3O4@Carbon materials and their Corrosion Resistance

机译：基于Fe 3 O 4 @carbon材料的天然橡胶纳米复合胶涂层的制备及其耐腐蚀

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Fe3O4@carbon nanomaterials/natural rubber (NR) nanocomposite coatings were prepared via a latex compounding method, in which the carbon nanomaterials (e.g., reduced graphene oxide (rGO), graphene oxide (GO) and carbon nanotubes (CNTs) were efficiently dispersed in NR latex with the aid of Fe3O4 nanoparticles. Furthermore, the barrier properties of the various Fe3O4@carbon nanomaterials/NR nanocomposite coatings were studied and compared via electrochemical impedance spectroscopy, optical microscopy and potentiodynamic polarization. These results revealed that the Fe3O4@CNT/natural rubber nanocomposite coating was a better barrier against corrosive media compared with Fe3O4@GO or Fe3O4@rGO doped natural rubber coatings. Moreover, the Fe3O4@CNT/natural rubber nanocomposite coating maintained its high anticorrosive properties with a low Rrcco (ca. 5.2×10-4 mm/year) and Icorr (0.05 μA/cm2) over 10 cyclic bends (ca. 120o). Enhanced flexible anticorrosion performance was observed because the Fe3O4 growing on the carbon nanomaterials surface avoided carbon materials/metal connections, thus increasing the electrical resistance of the coating. Additionally, the as-prepared composite coatings were flexible and their structures were less disordered, which could greatly prolong the diffusion pathway of corrosive media in the coating matrix.
机译：通过胶乳复合方法制备Fe3O4 @碳纳米材料/天然橡胶（NR）纳米复合涂层，其中碳纳米材料（例如，氧化石墨烯（RGO），石墨烯（GO）和碳纳米管（CNT）有效地分散在内NR乳胶借助于Fe3O4纳米颗粒。此外，通过电化学阻抗光谱，光学显微镜和电位正极极化进行了各种Fe3O4 @碳纳米材料/ NR纳米复合涂层的阻隔性。这些结果表明FE3O4 @ CNT /天然与Fe3O4 @ Go或Fe3O4 @ Rgo掺杂的天然橡胶涂料相比，橡胶纳米复合涂层是抗腐蚀性培养基的更好的障碍。此外，Fe3O4 /天然橡胶纳米复合涂料与低rrcco（约5.2×10 -4毫米/年）和Icorr（0.05μA/ cm2）超过10个循环弯曲（约120O）。观察到增强的柔性防腐性能，因为Fe3O4在碳纳米材料表面上生长避免了碳材料/金属连接，从而增加了涂层的电阻。另外，制备的复合涂层是柔性的，它们的结构较差较差，这可能极大地延长涂层基质中腐蚀性介质的扩散途径。

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