椰油酸二乙醇酰胺对钢在三氯乙酸溶液中的缓蚀性能

仇莉, 李向红, 雷然, 邓书端

Inhibition Performance of Coconut Diethanolamide on Cold Rolled Steel in Trichloroacetic Acid Solution

QIU Li, LI Xianghong, LEI Ran, DENG Shuduan

表2 0.10 mol/L Cl3CCOOH溶液中CDEA在钢表面的吸附热力学参数

Table 2 Adsorption thermodynamic parameters of CDEA on steel surfacein 0.10 mol/L Cl3CCOOH solution

T / ℃ ΔG0 / kJ·mol-1 ΔH0 / kJ·mol-1 ΔS0 / J·mol-1·K-1 20 -33.54 -28.18 18.28 30 -33.84 -28.18 18.67 40 -33.03 -28.18 15.49 50 -34.08 -28.18 18.26