不同溶液长期浸泡下大流动性磷酸钾镁水泥基防腐涂层的性能

硅酸盐通报 ›› 2021, Vol. 40 ›› Issue (1): 48-54.

所属专题：水泥混凝土

不同溶液长期浸泡下大流动性磷酸钾镁水泥基防腐涂层的性能

韩超¹, 杨建明², 单春明³, 吴庆¹, 何富强⁴

1.江苏科技大学土木工程与建筑学院,镇江 212000;
2.盐城工学院土木工程学院,盐城 224051;
3.盐城幼儿师范高等专科学校建筑工程学院,盐城 224005;
4.厦门理工学院土木工程与建筑学院,厦门 361000

收稿日期:2020-08-17 修回日期:2020-10-17 出版日期:2021-01-15 发布日期:2021-02-07
通讯作者: 杨建明,教授。E-mail:yjm_kk@163.com
作者简介:韩超(1996—),男,硕士研究生。主要从事磷酸镁水泥的研究。E-mail:182100011@stu.just.edu.cn
基金资助:
国家自然科学基金面上项目(51578475);2019年度江苏省高等学校自然科学研究面上项目(19KJB560025)

Performance of Magnesium Potassium Phosphate Cement-BasedAnticorrosive Coating with High Fluidity under Long-TermSoaking in Different Solutions

HAN Chao¹, YANG Jianming², SHAN Chunming³, WU Qing¹, HE Fuqiang⁴

1. College of Civil Engineering and Architecture,Jiangsu University of Science and Technology,Zhenjiang 212000,China;
2. College of Civil Engineering,Yancheng Institute of Technology,Yancheng 224051,China;
3. College of Architectural Engineering,Yancheng Kindergarten Teachers College,Yancheng 224005,China;
4. College of Civil Engineering and Architecture,Xiamen University of Technology,Xiamen 361000,China

Received:2020-08-17 Revised:2020-10-17 Online:2021-01-15 Published:2021-02-07

摘要/Abstract

摘要： 为了探究大流动性磷酸钾镁水泥(MKPC)基防腐涂层在不同溶液环境下的性能,将大流动性磷酸钾镁水泥浸泡于淡水、5%硫酸钠溶液及3.5%氯化钠溶液(同为质量分数)三种腐蚀环境下,测试其强度、干缩率、吸水率,从而建立长期浸泡下性能劣化规律模型,并且以SEM-EDS、XRD对MKPC基防腐涂层在长期浸泡下的腐蚀机理进行分析。结果表明大流动性MKPC在淡水环境下耐腐蚀性能较好,在3.5%氯化钠溶液和5%硫酸钠溶液环境下耐腐蚀性能更好。

关键词: 磷酸镁钾水泥(MKPC), 防腐涂层, 水玻璃, 耐水性, 长期浸泡

Abstract: In order to explore the performance ofmagnesium potassium phosphate cement (MKPC)-based anticorrosive coating with high fluidity in different solution environments,the strength,dry shrinkage and water absorption of MKPC-based anticorrosive coating were tested by immersion in fresh water,5% sodium sulfate solution and 3.5% sodium chloride solution (both are mass fraction).In addition,the corrosion mechanism of MKPC-based anticorrosive coating under long-term soaking was analyzed by SEM-EDS and XRD.The results show that the high fluidity MKPC has good corrosion resistance in fresh water environment,and better corrosion resistance in 3.5% sodium chloride solution and 5% sodium sulfate solution.

Key words: magnesium potassium phosphate cement (MKPC), anticorrosive coating, water glass, water resistance, long-term soaking

中图分类号:

TQ172

韩超, 杨建明, 单春明, 吴庆, 何富强. 不同溶液长期浸泡下大流动性磷酸钾镁水泥基防腐涂层的性能[J]. 硅酸盐通报, 2021, 40(1): 48-54.

HAN Chao, YANG Jianming, SHAN Chunming, WU Qing, HE Fuqiang. Performance of Magnesium Potassium Phosphate Cement-BasedAnticorrosive Coating with High Fluidity under Long-TermSoaking in Different Solutions[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(1): 48-54.

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不同溶液长期浸泡下大流动性磷酸钾镁水泥基防腐涂层的性能

Performance of Magnesium Potassium Phosphate Cement-BasedAnticorrosive Coating with High Fluidity under Long-TermSoaking in Different Solutions

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