a.焦磷酸钠SDPP直接添加于3.5 wt% NaCl溶液后,Q235试样的EIS测试图bode图;b. 焦磷酸钠SDPP 的Nyquist图c.焦磷酸钠SDPP,三聚磷酸钠STPP,六偏磷酸钠SHPP和植酸钠SP 结构;d. 不同阻锈剂在EIS测试中低频阻抗|Z|0.01Hz随时间的变化
a. EIS test diagram bode diagram of Q235 sample after sodium pyrophosphate SDPP was directly added to 3.5wt % NaCl solution; b. Nyquist diagram of SDPP of sodium pyrophosphate c. Structure of SDPP of sodium pyrophosphate, STPP of sodium tripolyphosphate, SHPP of sodium hexametaphosphate and SP of sodium phytate; d. Change of low frequency impedance |Z|0.01Hz with time of different rust inhibitors in EIS test