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使用离子选择性微电极对0.6 mol/L NaCl溶液(60℃)中Na+在一种环氧粉末涂层/Q235钢界面上的传输行为进行了研究,并基于Fick第二定律建立了数学模型。结果表明,实验结果和模型吻合较好,依据模型计算得到的Na+表观扩散系数与前人的结果相符。
The transport behavior of Na + in an epoxy powder coating / Q235 steel interface in 0.6 mol / L NaCl solution (60 ℃) was investigated using ion-selective microelectrode and a mathematical model was established based on Fick’s second law. The results show that the experimental results agree well with the model, and the apparent diffusion coefficient of Na + calculated by the model is consistent with the previous results.