CAJ | 학술논문

在5％氨基磺酸溶液体系中，采用失重法考察不同温度下不同浓度的苯甲醛对锌的缓蚀作用；并对氨基磺酸介质中苯甲醛在锌表面吸附热力学进行了研究。当苯甲醛在低浓度时，随浓度增大，缓蚀作用增强；当其浓度达到一定值后，缓蚀作用基本保持不变。实验结果表明，苯甲醛在锌表面产生饱和单分子层吸附，并且满足Langmuir 吸附规律。ΔG0<0，表明苯甲醛在锌表面的吸附是自发进行的。随着温度升高，ΔG0增大导致缓蚀剂的吸附能力下降。ΔH0<0，表明在所研究的温度范围内吸附过程是放热过程。ΔS0>0说明苯甲醛吸附于锌表面，使锌表面的水分被挤走，体系进入更为无序状态。
재5％안기광산용액체계중，채용실중법고찰불동온도하불동농도적분갑철대자적완식작용；병대안기광산개질중분갑철재자표면흡부열역학진행료연구。당분갑철재저농도시，수농도증대，완식작용증강；당기농도체도일정치후，완식작용기본보지불변。실험결과표명，분갑철재자표면산생포화단분자층흡부，병차만족Langmuir 흡부규률。ΔG0<0，표명분갑철재자표면적흡부시자발진행적。수착온도승고，ΔG0증대도치완식제적흡부능력하강。ΔH0<0，표명재소연구적온도범위내흡부과정시방열과정。ΔS0>0설명분갑철흡부우자표면，사자표면적수분피제주，체계진입경위무서상태。
In 5% sulfhamic acid solution, the corrosion inhibition of benzaldehyde on zinc was invented by weight-loss method under different temperature and concentration of Benzaldehyde. The adsorption thermodynamics of Benzaldehyde in sulphamic acid medium on the zinc surface was studied. At low concentration, the corrosion effect enhanced with the increasing of concentration of Benzaldehyde. When the concentration reached a certain value, the corrosion effect remained unchanged. In our study, the results indicated that Benzaldehyde produced monolayer adsorption on the surface of zinc, and accorded with the Langmuir adsorption rule.ΔG0<0 could generate adsorption process spontaneously, andΔG0 increased and adsorption reduced with the increase of temperature.ΔH0<0 indicated that reaction is exothermic process.ΔS0>0 said that Benzaldehyde was adsorbed on the surface of zinc,the water on the surface of zinc was squeezed, the system went into a more disordered state.