一种复配缓蚀剂对Q235碳钢的缓蚀性能及机理研究

刘会媛,柳鑫华,石春杰,张红霞

Corrosion inhibition performance and mechanism of a compound corrosion inhibitor to Q235 carbon steel

Huiyuan LIU,Xinhua LIU,Chunjie SHI,Hongxia ZHANG

表1 葡萄糖酸钠在含有钨酸钠、Zn2+缓蚀剂自来水中的吸附参数

Table 1 Adsorption parameters of sodium gluconate in tap water containing sodium tungstate and Zn2+ corrosion inhibitor

T/℃ K/（L·mg-1） 斜率 R2 ΔG0/（kJ·mol-1） 20 0.988 6 1.000 5 1.000 -33.6 40 0.969 6 1.049 5 0.996 5 -35.871 50 0.809 6 1.124 1 0.997 1 -36.5