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A Novel HPEI-Based Hyperbranched Scale and Corrosion Inhibitor: Construction, Performance, and Inhibition Mechanism
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2018-10-16 , DOI: 10.1021/acs.iecr.8b03522 Sheying Dong 1, 2 , Xiaojing Yuan 1 , Shuangli Chen 1 , Lili Zhang 2 , Tinglin Huang 2
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2018-10-16 , DOI: 10.1021/acs.iecr.8b03522 Sheying Dong 1, 2 , Xiaojing Yuan 1 , Shuangli Chen 1 , Lili Zhang 2 , Tinglin Huang 2
Affiliation
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A novel hyperbranched scale and corrosion inhibitor (CHPEI-AMPS) was designed by hyperbranched polyethylenimine (HPEI) and 2-acrylamido-2-methylpropane sulfonic acid (AMPS) as raw materials and rapidly synthesized by microwave radiation. The material performances such as scale inhibition for calcium carbonate and corrosion inhibition for carbon steel were investigated by static test and polarization curves, electrochemical impedance spectroscopy (EIS), respectively. The results showed CHPEI-AMPS had a significant inhibition effect, achieving scale inhibition efficiency of 95.4% and corrosion inhibition efficiency of 94.5% at the dosage of 50 mg/L. Moreover, molecular dynamics (MD) simulation from the atomic level revealed that the CHPEI-AMPS inhibited the generation of CaCO3 scale by dominantly inhibiting the growth of calcite (104) surface. The results of electrochemical measurements found that the CHPEI-AMPS mainly suppressed the anodic iron dissolution reaction to prevent corrosion. The study suggested that CHPEI-AMPS can act as a novel inhibitor for controlling scale and corrosion.
中文翻译：
基于HPEI的新型超支化阻垢缓蚀剂：结构，性能和缓蚀机理
以超支化聚乙烯亚胺（HPEI）和2-丙烯酰胺基-2-甲基丙烷磺酸（AMPS）为原料，设计了一种新型的超支化阻垢缓蚀剂（CHPEI-AMPS），并通过微波辐射快速合成。分别通过静态测试和极化曲线，电化学阻抗谱（EIS）研究了材料性能，例如碳酸钙的阻垢和碳钢的腐蚀抑制。结果表明，在50 mg / L的剂量下，CHPEI-AMPS具有显着的缓蚀作用，达到95.4％的阻垢率和94.5％的缓蚀率。此外，从原子水平进行的分子动力学（MD）模拟表明，CHPEI-AMPS抑制了CaCO 3的生成。通过显着抑制方解石（104）表面的生长形成氧化皮。电化学测量结果发现，CHPEI-AMPS主要抑制阳极铁溶解反应以防止腐蚀。研究表明，CHPEI-AMPS可以作为控制垢和腐蚀的新型抑制剂。
更新日期：2018-10-17
中文翻译：
基于HPEI的新型超支化阻垢缓蚀剂：结构，性能和缓蚀机理
以超支化聚乙烯亚胺（HPEI）和2-丙烯酰胺基-2-甲基丙烷磺酸（AMPS）为原料，设计了一种新型的超支化阻垢缓蚀剂（CHPEI-AMPS），并通过微波辐射快速合成。分别通过静态测试和极化曲线，电化学阻抗谱（EIS）研究了材料性能，例如碳酸钙的阻垢和碳钢的腐蚀抑制。结果表明，在50 mg / L的剂量下，CHPEI-AMPS具有显着的缓蚀作用，达到95.4％的阻垢率和94.5％的缓蚀率。此外，从原子水平进行的分子动力学（MD）模拟表明，CHPEI-AMPS抑制了CaCO 3的生成。通过显着抑制方解石（104）表面的生长形成氧化皮。电化学测量结果发现，CHPEI-AMPS主要抑制阳极铁溶解反应以防止腐蚀。研究表明，CHPEI-AMPS可以作为控制垢和腐蚀的新型抑制剂。
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