[1]赵斌成,占明飞,侯君霞,等.“一步法”聚环氧琥珀酸(PESA)的合成及缓蚀阻垢机理分析[J].常州大学学报(自然科学版),2022,34(03):64-73.[doi:10.3969/j.issn.2095-0411.2022.03.009]
　ZHAO Bincheng,ZHAN Mingfei,HOU Junxia,et al.Synthesis of One Step Polyepoxysuccinic Acid(PESA)and Analysis of Corrosion and Scale Inhibition Mechanism[J].Journal of Changzhou University(Natural Science Edition),2022,34(03):64-73.[doi:10.3969/j.issn.2095-0411.2022.03.009]
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“一步法”聚环氧琥珀酸(PESA)的合成及缓蚀阻垢机理分析()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
第34卷
期数:
2022年03期
页码:
64-73
栏目:
环境科学与工程
出版日期:
2022-05-28

文章信息/Info

Title:
Synthesis of One Step Polyepoxysuccinic Acid(PESA)and Analysis of Corrosion and Scale Inhibition Mechanism
文章编号:
2095-0411(2022)03-0064-10
作者:
赵斌成; 占明飞; 侯君霞; 张文艺
(常州大学环境与安全工程学院,江苏常州213164)
Author(s):
ZHAO Bincheng;  ZHAN Mingfei;  HOU Junxia;  ZHANG Wenyi
(School of Environmental & Safety Engineering, Changzhou University, Changzhou 213164, China)
关键词:
工业循环冷却水;  无磷缓蚀阻垢剂;  聚环氧琥珀酸;  机理分析
Keywords:
industrial circulating cooling water;  phosphorus-free corrosion and scale inhibitor;  polyepoxysuccinic acid;  mechanism analysis
分类号:
X 703
DOI:
10.3969/j.issn.2095-0411.2022.03.009
文献标志码:
A
摘要:
针对工业生产循环冷却系统广泛使用磷系缓蚀阻垢剂造成的磷元素排放污染问题,以马来酸酐为主要原料,氢氧化钙为引发剂,采用“一步法”合成工艺,合成了一种无磷缓蚀阻垢剂,通过红外光谱与核磁共振分析,表明所合成的无磷缓蚀阻垢剂是聚环氧琥珀酸(PESA)。通过旋转挂片法与碳酸钙沉积法研究了PESA在不同条件下的缓蚀阻垢性能。结果表明,PESA在投加量110 mg/L、循环水温度低于45 ℃、pH在中性或碱性条件下、水流转速小于85 r/min时,PESA对A3碳钢腐蚀率小于0.248 mm/a,最大缓蚀率可达60.9%,最大阻垢率近100%。同时通过电导率仪、红外光谱、扫描电镜等手段对PESA的缓蚀阻垢作用机理进行了分析,结果表明PESA是通过分散、螯合及晶格畸变来实现阻垢性能的,是通过在金属表面生成一层保护膜,阻止发生腐蚀的电子转移,防止金属腐蚀的。
Abstract:
Aiming at the problem of phosphorus emission pollution caused by the widespread use of phosphorus-based corrosion and scale inhibitors in industrial production circulating cooling systems, maleic anhydride is used as the main raw material, calcium hydroxide is used as the initiator, and a “one-step” synthesis process is used to synthesize a phosphorus-free corrosion and scale inhibitor, through infrared spectrum analysis and nuclear magnetic resonance spectrum analysis, which shows that the synthesized phosphorus-free corrosion and scale inhibitor is polyepoxysuccinic acid(PESA). Through infrared spectrum analysis and nuclear magnetic resonance spectrum analysis, it is shown that the synthesized product is PESA. The corrosion and scale inhibition performance of PESA under different conditions was studied by rotating coupon method and calcium carbonate deposition method. The results show that the dosage of PESA is 110 mg/L, the circulating water temperature is lower than 45 ℃, and the pH is neutral or alkaline. Under normal conditions, when the water flow speed is less than 85 r/min, the corrosion rate of PESA to A3 carbon steel is less than 0.248 mm/a, the maximum corrosion inhibition rate can reach 60.9%, and the maximum scale inhibition rate is nearly 100%. At the same time, the corrosion and scale inhibition mechanism of PESA was analyzed by means of conductivity meter, infrared spectroscopy, scanning electron microscope, etc. The results show that PESA achieves scale inhibition performance through dispersion, chelation and lattice distortion. A protective film is formed on the surface to prevent the transfer of corroded electrons, thereby preventing metal corrosion.

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备注/Memo

备注/Memo:
收稿日期: 2022-01-29。
基金项目: 江苏省科技支撑计划资助项目(BE2020761); 2020年江苏省研究生科研与实践创新计划资助项目(SJCX20-0942)。
作者简介: 赵斌成(1997—), 男, 江苏常州人, 硕士生。 通信联系人: 张文艺(1968—), zhangwenyi888@sina.com
更新日期/Last Update: 1900-01-01