聚N-乙烯基咪唑对盐酸介质中Q235钢的缓蚀性能

丁其晨, 陈上

Corrosion Inhibition of Poly N-vinyl Imidazole for Q235 Steel in HCl Solution

DING Qichen, CHEN Shang

表4 Q235钢在不同温度含8 mgL^-¹ PVI 的1 molL^-¹盐酸溶液中的吸附热力学参数

Table 4 Thermodynamic parameters for adsorption of 8 mgL^-¹ PVI in 1 molL^-¹ HCl on Q235 steel at different temperatures

Temperature / K	θ(η₁) / %	ΔG_ads / kJmol^-¹	ΔH_ads / kJmol^-¹	ΔS_ads / Jmol^-¹K^-¹
298	93.3	-59.383	-23.56	120.3
308	91.2	-61.375	-23.55	122.8
318	88.3	-63.367	-23.55	125.2
328	85.5	-65.360	-23.54	127.5