Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Dicationic electromigration corrosion inhibitor, preparation method and application
The invention discloses a dication type electromigration corrosion inhibitor, a preparation method and application. According to the dicationic electromigration corrosion inhibitor, saturated fatty acid and polyethylene polyamine serve as raw materials to generate an intermediate under the negative pressure condition, and the intermediate reacts with a quaternization reagent in an organic solvent to obtain the dicationic electromigration corrosion inhibitor. The number of carbon atoms of the saturated fatty acid is an integer ranging from 3 to 31, the quaternization reagent is XCH2 (CH2) sOH or X (CH2) sCOONa, s is an integer ranging from 1 to 15, and X is halogen elements such as chlorine, bromine and iodine. The dicationic electromigration corrosion inhibitor can be internally doped into a newly-built concrete structure, is adsorbed on the surface of a reinforcing steel bar to inhibit corrosion of the reinforcing steel bar, can be migrated into reinforced concrete under the action of an electric field to repair corrosion of the reinforcing steel bar in the existing structure, and has a wide market application value.
本发明公开了一种双阳离子型电迁移阻锈剂、制备方法及应用。本发明所述双阳离子型电迁移阻锈剂以饱和脂肪酸以及多乙烯多胺为原料在负压条件下生成中间体，且在有机溶剂中与季铵化试剂反应得到双阳离子型电迁移阻锈剂。本发明所述的饱和脂肪酸的碳原子数为3‑31的整数，季铵化试剂为XCH2(CH2)sOH或X(CH2)sCOONa，其中s为1‑15的整数，X为卤族元素氯、溴、碘。本发明所述的双阳离子型电迁移阻锈剂既可内掺于新建混凝土结构中，吸附在钢筋表面抑制钢筋腐蚀，又可通过电场作用迁移至钢筋混凝土内部修护既有结构中钢筋的腐蚀，具有广泛的市场应用价值。
Dicationic electromigration corrosion inhibitor, preparation method and application
The invention discloses a dication type electromigration corrosion inhibitor, a preparation method and application. According to the dicationic electromigration corrosion inhibitor, saturated fatty acid and polyethylene polyamine serve as raw materials to generate an intermediate under the negative pressure condition, and the intermediate reacts with a quaternization reagent in an organic solvent to obtain the dicationic electromigration corrosion inhibitor. The number of carbon atoms of the saturated fatty acid is an integer ranging from 3 to 31, the quaternization reagent is XCH2 (CH2) sOH or X (CH2) sCOONa, s is an integer ranging from 1 to 15, and X is halogen elements such as chlorine, bromine and iodine. The dicationic electromigration corrosion inhibitor can be internally doped into a newly-built concrete structure, is adsorbed on the surface of a reinforcing steel bar to inhibit corrosion of the reinforcing steel bar, can be migrated into reinforced concrete under the action of an electric field to repair corrosion of the reinforcing steel bar in the existing structure, and has a wide market application value.
本发明公开了一种双阳离子型电迁移阻锈剂、制备方法及应用。本发明所述双阳离子型电迁移阻锈剂以饱和脂肪酸以及多乙烯多胺为原料在负压条件下生成中间体，且在有机溶剂中与季铵化试剂反应得到双阳离子型电迁移阻锈剂。本发明所述的饱和脂肪酸的碳原子数为3‑31的整数，季铵化试剂为XCH2(CH2)sOH或X(CH2)sCOONa，其中s为1‑15的整数，X为卤族元素氯、溴、碘。本发明所述的双阳离子型电迁移阻锈剂既可内掺于新建混凝土结构中，吸附在钢筋表面抑制钢筋腐蚀，又可通过电场作用迁移至钢筋混凝土内部修护既有结构中钢筋的腐蚀，具有广泛的市场应用价值。
Dicationic electromigration corrosion inhibitor, preparation method and application
一种双阳离子型电迁移阻锈剂、制备方法及应用
MA QI (Autor:in) / CAI JINGSHUN (Autor:in) / MU SONG (Autor:in) / ZHANG HAO (Autor:in) / ZHOU YING (Autor:in) / GUO ZHENG (Autor:in) / LIU JIANZHONG (Autor:in)
16.01.2024
Patent
Elektronische Ressource
Chinesisch
Bidirectional electromigration of a corrosion inhibitor in chloride contaminated concrete
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Electromigration - a typical corrosion phenomenon in microelectronics
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