Functionalized Polypyrrole for Mild Steel Corrosion Protection in 15% HCl

被引：5

作者：

Dua, Sachin ^{[1
,2
]}

Prakashaiah, B. G. ^{[3
]}

Arora, Nishtha ^{[1
,2
]}

Saxena, Rakesh C. ^{[2
,3
]}

Ganguly, Sudip K. ^{[2
,3
]}

Senthilkumar, T. ^{[1
,2
,3
]}

机构：

[1] CSIR Indian Inst Petr, Chem & Mat Sci Div, Polymer Mat Area, Dehra Dun 248005, India

[2] Acad Sci & Innovat Res AcSIR, Dept Chem Sci, Ghaziabad 201002, India

[3] CSIR Indian Inst Petr, Chem & Mat Sci Div, Corros Area, Dehra Dun 248005, India

来源：

TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS | 2024年 / 77卷 / 05期

关键词：

Mild steel; Polypyrrole; Corrosion; Inhibitor; Impedance; Polarization; CATHODIC PROTECTION; ALUMINUM-ALLOY; CARBON-STEEL; INHIBITORS; COATINGS; PERFORMANCE; CHITOSAN;

D O I：

10.1007/s12666-023-03107-9

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Corrosion protection of mild steel (MS) substrate is critical to prolonging the life of service equipment in refineries and chemical industries. In petroleum refineries, drilling and acidizing pipe work with vast amounts of 15% HCl that induce corrosion of MS pipelines. Here, a novel pentadecyl phenol (originated from cashew nut shell liquid)-functionalized conjugated polypyrrole (MPY) was synthesized and demonstrated for MS corrosion inhibition at a 15% HCl environment. Pentadecyl units provide hydrophobicity and form interdigitating layer structures to cover the metal substrate, which leads to better corrosion mitigation. Electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PDP) studies reveal the superior corrosion inhibition performance of MPY on MS under 15% HCl conditions. The corrosion protection efficiency was determined to be 67.93% over MS substrate in the presence of MPY from PDP studies compared with pure MS.

引用

页码：1313 / 1321

页数：9

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