摘要
采用动电位极化曲线和交流阻抗实验,研究了抗生素——头孢硫脒的缓蚀剂在盐酸介质中对碳钢的缓蚀性能和缓蚀作用机理。结果表明,头孢硫脒对碳钢在1.0 mol/L盐酸溶液中具有良好的缓蚀性能,当头孢硫脒浓度为0.4 mmol/L时,缓蚀率达86%以上,为抑制阴极反应为主的混合型缓蚀剂。头孢硫脒在碳钢表面的吸附符合Langmuir等温式,属于单分子层吸附,其吸附行为是以化学吸附为主的物理和化学混合吸附。
The corrosion inhibition and corrosion mechanism of Cefathiamidine（TBSM） for carbon steel in 1. 0 mol/L HCl solution was investigated by potentiodynamic polarization and electrochemical impedance spectroscopy. The results showed that TBSM had good corrosion inhibition for carbon steel in 1. 0 mol/L solution. When concentration of TBSM was 0. 4 mmol/L,its＇ corrosion efficiency reached 86%. The TB-SM was a mixed-type inhibitor for inhibition of cathode and anode reaction,and the adsorption of the TBSM on the carbon steel surface conformed with Langmuir adsorption isotherm equation,which belonged to monolayer adsorption.
出处
《应用化工》
CAS
CSCD
2014年第1期71-74,共4页
Applied Chemical Industry
基金
山东省中青年优秀科学家奖励基金项目(2008BS04030)
滨州学院科研基金项目(BZXYG1206)
关键词
头孢硫脒
盐酸
碳钢
缓蚀作用
Cefathiamidine
hydrochloric acid
carbon steel
corrosion inhibition
