a.不同浓度的焦磷酸钠直接添加于3.5 wt% NaCl溶液和将负其负载于水凝胶中再贴附在试样表面后,试样的EIS测试中的低频阻抗随时间变化图;b.负载了不同阻锈剂的水凝胶贴附在Q235试样表面的EIS测试中的低频阻抗随时间变化图
a. After sodium pyrophosphate with different concentrations was directly added to 3.5wt % NaCl solution and loaded in hydrogel and then attached to the surface of the sample, the low-frequency impedance of the sample in the EIS test changed over time; b. The low-frequency impedance changes over time in EIS test of hydrogels loaded with different rust inhibitors attached to the surface of Q235 sample