张宏忠, 刘振兴, 胡万达, 等. 天然碱原卤液采集管道防腐涂层的研制及其性能研究[J]. 轻工学报.
引用本文:
张宏忠, 刘振兴, 胡万达, 等. 天然碱原卤液采集管道防腐涂层的研制及其性能研究[J]. 轻工学报.
ZHANG Hongzhong, LIU Zhenxing, HU Wanda, et al. Preparation and performance of anti-corrosion coating for natural alkali brine colletion pipelines[J]. Journal of Light Industry.
Citation:
ZHANG Hongzhong, LIU Zhenxing, HU Wanda, et al. Preparation and performance of anti-corrosion coating for natural alkali brine colletion pipelines[J]. Journal of Light Industry.
天然碱原卤液采集管道防腐涂层的研制及其性能研究
作者简介:张宏忠(1968—),男,河南省新乡市人,郑州轻工业大学教授,博士,主要研究方向为工业三废治理与资源化利用。E-mail:zhz@zzuli.edu.cn
- 1. 郑州轻工业大学 材料与化学工程学院, 河南 郑州 450001;
- 2. 环境污染治理与生态修复河南省协同创新中心, 河南 郑州 450001;
- 3. 河南中源化学股份有限公司, 河南 南阳 474775;
- 4. 河南顺圆水处理技术有限公司, 河南 郑州 450003
- 收稿日期:
2024-06-21
- 录用日期:
2024-07-25
- 网络出版日期:
2025-06-11
基金项目:
国家自然科学基金面上项目(42277413)
摘要: 针对天然碱原卤液采集管道腐蚀问题,以环氧树脂(EP)和聚二甲基硅氧烷(PDMS)作为基体材料,三氯十八烷基硅烷(OTS)改性的纳米二氧化硅(n-SiO2)粒子作为填充材料,制备复合体系防腐涂层(EP+PDMS@SiO2),通过塔尔菲(Tafel)极化分析、电化学阻抗(EIS)分析、挂片失量法等考查该防腐涂层的耐腐蚀性能。结果表明:n-SiO2粒子及改性剂OTS的添加量为防腐涂层(EP+PDMS@SiO2)耐腐蚀性能的关键影响因素,最佳添加量分别为2.1 g和0.5~1.0 mL;N80不锈钢标准腐蚀试片经耐腐蚀性能最优的EP+PDMS@SiO2防腐涂层涂覆后,其自腐蚀电流降低了3个数量级,电荷转移电阻提升了3个数量级,腐蚀率由原来的2.004 4%降低为0.029 2%,说明该防腐涂层对抑制天然碱原卤液采集管道的腐蚀具有显著效果。
Preparation and performance of anti-corrosion coating for natural alkali brine colletion pipelines
- 1. College of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China;
- 2. Henan Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Zhengzhou 450001, China;
- 3. Henan Zhongyuan Chemical Co., Ltd., Nanyang 474775, China;
- 4. Henan Shunyuan Water Treatment Technology Co., Ltd., Zhengzhou 450003, China
- Received Date:
2024-06-21
- Accepted Date:
2024-07-25
- Available Online:
2025-06-11
Abstract: To address the corrosion issue in the collection pipelines of natural alkali brine, a composite anticorrosion coating system (EP +PDMS@ SiO2) was developed using epoxy resin (EP) and polydimethylsiloxane (PDMS) as matrix materials, with octadecyltrichlorosilane (OTS)-modified nano-silica (n-SiO2) particles as filler materials. The corrosion resistance of the coating was evaluated through Tafel polarization analysis, electrochemical impedance spectroscopy (EIS), and weight loss method. Results showed that the addition amount of n-SiO2 particles and modifier OTS were the key influencing factors, and the optimal addition amount was 2.1 g and 0.5 ~ 1.0 mL, respectively. When applied to N80 steel coupons, the optimized EP +PDMS@ SiO2 coating reduced the self-corrosion current by three orders of magnitude and increased charge transfer resistance by three orders of magnitude. The corrosion rate decreased from 2.004 4% to 0.029 2%. This advancement holds the anti-corrosion coating with n-SiO2 particles modified by OTS (EP + PDMS @ SiO2) had a significant effect on inhibiting the corrosion of natural alkali brine collection and transportation pipelines.
点击查看大图
下载:
