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研究论文

高分子缓蚀剂的合成及其在钢筋混凝土中的应用

  • 林薇薇
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  • 浙江大学高分子科学与工程学系,浙江大学硅材料科学国家重点实验室

收稿日期: 1999-02-28

  修回日期: 1999-02-28

  网络出版日期: 1999-02-28

Synthesis and Application of Polymeric Corrosion Inhibitor for Reinforced Concrete

  • Lin Weiwei Wang Shengxian Zhang Jianqing
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  • (Dept. of Polymer Science and Engin., Dept. of Chem., Zhejiang Univ., Hangzhou 310027) Yuan Jun Ji Zhengguo (State Key Laboratory of Si Material Science, Zhejiang Univ., Hangzhou 310027

Received date: 1999-02-28

  Revised date: 1999-02-28

  Online published: 1999-02-28

摘要

合成了硫脲二乙烯三胺缩聚物(ET),用动电位极化曲线及电化学阻抗谱研究其在混凝土孔隙模拟液及混凝土中对钢筋腐蚀的抑制作用.结果表明,这是一种混合型缓蚀剂,对钢筋的点蚀也有较好的抑制作用.在模拟液中添加1%该缓蚀剂就可以使氯子的容忍度从0.02mol/L提高到0.10mol/L,并与NaNO2有较好的协同作用.既能吸附于钢筋表面,还能提高混凝土的密实度,减缓电解质渗透.对于钢筋混凝土的腐蚀防护具有一定的应用前景.

本文引用格式

林薇薇 . 高分子缓蚀剂的合成及其在钢筋混凝土中的应用[J]. 电化学, 1999 , 5(1) : 43 -48 . DOI: 10.61558/2993-074X.3155

Abstract

A new polymer E Twas synthesized and used as a corrosion inhibitor for reinforced concrete. The inhibitive behavior and mechanism were studied with linear polarization ,Tafel polarization,EIS and XPS method in simulated pore solution system with concrete samples.The result showed that the polymer was a mixing type inhibitor. A 1% dosage was sufficient to imhibit the corrosion of steel in simulated pore solution system. The salt endurance was enhanced from 0.02 mol/L to 0.10 mol/L.The result also showed the good synergetic effect of NaNO 2,especially in low NaNO 2 concentration.The EIS showed that E_T has dual function on reinforced concrete,i.e.,densifying the concrete pore structure and adsorbing on the surface of the reinforcing rebar.

参考文献

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