首页|石楠叶提取物在盐酸中对Q235钢的缓蚀行为研究

石楠叶提取物在盐酸中对Q235钢的缓蚀行为研究

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为获得环保、高效的绿色缓蚀剂,通过蒸馏水加热回流制备了石楠叶提取物(PTF).采用电化学测试、失重试验、扫描电子显微镜等方法,研究了 PTF对Q235钢在1 mol/L盐酸中的缓蚀性能.结果表明,PTF作为一种混合型缓蚀剂能有效抑制Q235钢在盐酸介质中的腐蚀;缓蚀效率随PTF浓度增加而增大,随溶液温度升高而降低,在293 K、浓度为4 g/L时,PTF的缓蚀效率可达87.99％.吸附等温模型研究结果说明,PTF能自发地通过物理作用在Q235钢表面吸附,且符合Langmuir单层吸附模型.
Study on Corrosion Inhibition Behavior of Photinia Leaf Extracts for Q235 Steel in HCl Medium
For obtaining environment-friendly and efficient green corrosion inhibitors,the photinia leaf extracts(PTF)were prepared by dis-tilled water reflux method.The corrosion inhibition performance of PTF on Q235 steel in 1 mol/L hydrochloric acid was studied using electro-chemical tests,weight loss tests,scanning electron microscopy and other methods.Results showed that as a mixed corrosion inhibitor,PTF could effectively inhibit the corrosion of Q235 steel in hydrochloric acid medium.The corrosion inhibition efficiency increased with the increase of PTF concentration and decreased with the increase of solution temperature.Furthermore,the inhibition efficiency of 4 g/L PTF was 87.99％at 293 K.The results of adsorption isotherm model showed that PTF could spontaneously adsorb on the surface of Q235 steel through physical effects,which conformed to the Langmuir single-layer adsorption model.

HC1corrosion inhibitionQ235 steelphotinia leaf extractadsorption model

陈书军、陶爱宁、张海、袁龙飞、陈思屹、杨芳

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遵义师范学院化学化工学院,贵州 遵义 563000

遵义师范学院物理与电子科学学院,贵州 遵义 563000

盐酸 缓蚀 Q235钢 石楠叶提取物 吸附模型

国家自然科学基金贵州省省级科技计划项目贵州省教育厅项目贵州省教育厅项目贵州省教育厅项目遵义市科技局项目遵义市科技局项目遵义师范学院科研项目遵义师范学院科研项目贵州省大学生创新创业训练计划项目贵州省大学生创新创业训练计划项目Guizhou Provincial Science and Technology ProjectsScience Research Project of Guizhou Department of EducationScience Research Project of Guizhou Department of EducationScience Research Project of Guizhou Department of EducationScience Research Project of Zunyi Science and TechnologyScience Research Project of Zunyi Science and TechnologyScience Research Project of Zunyi Normal UniversityScience Research Project of Zunyi Normal UniversityCollege Student Innovation and Entrepreneurship Training Program of Guizhou ProvinceCollege Student Innovation and Entrepreneurship Training Program of Guizhou Province

22065041黔科合基础-ZK[2022]569号黔教合KY字[2012]017-16号黔教合KY字[2020]098黔教合KY字[2018]004遵市科合HZ字[2021]205号遵市科合HZ字[2018]5784-02号遵师BS[2019]11号遵师XM[2021]1号-6202110664025号S202110664027号ZK[2022]569KY[2012]017-16KY[2020]098KY[2018]004HZ[2021]205HZ[2018]5784-02BS[2019]11XM[2021]1-6202110664025S202110664027

2024

10.16577/j.issn.1001-1560.2024.0033

材料保护
武汉材料保护研究所,中国腐蚀与防护学会 中国表面工程协会

材料保护

CSTPCD
影响因子：1.129
ISSN：1001-1560
年,卷(期)：2024.57(2)
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