Lignin copolymers as corrosion inhibitor for carbon steel

被引：33

作者：

Gao, Chao ^{[1
]}

Zhao, Xin ^{[1
]}

Fatehi, Pedram ^{[2
]}

Dong, Xinyu ^{[1
]}

Liu, Keyin ^{[1
]}

Chen, Shiwen ^{[3
]}

Wang, Shoujuan ^{[1
]}

Kong, Fangong ^{[1
]}

机构：

[1] Qilu Univ Technol, State Key Lab Biobased Mat & Green Papermaking, Key Lab Pulp & Paper Sci & Technol Shandong Prov, Shandong Acad Sci,Minist Educ, Jinan 250353, Peoples R China

[2] Lakehead Univ, Chem Engn Dept, Thunder Bay, ON P7B 5E1, Canada

[3] China Univ Petr, Coll Pipeline & Civil Engn, Qingdao 266580, Peoples R China

来源：

INDUSTRIAL CROPS AND PRODUCTS | 2021年 / 168卷

基金：

中国国家自然科学基金;

关键词：

Lignin; Graft; Corrosion inhibitor; Quantum chemical calculation; Molecular dynamics simulations; MILD-STEEL; ACRYLIC-ACID; KRAFT LIGNIN; EXTRACT; GREEN; PROTECTION; CHITOSAN; TERPOLYMER; FLOCCULANT; OIL;

D O I：

10.1016/j.indcrop.2021.113585

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

In this work, the corrosion inhibition effectiveness of semi natural lignin polymers, lignin-acrylamide and ligninacrylic acid, in HCl solution was investigated by means of weight loss, polarization, electrochemical impedance, atomic force microscope (AFM) and scanning electron microscope (SEM) analyses. The results showed that the inhibition effectiveness of lignin-acyclic acid (AA) was better than that of lignin-acrylamide (AM), because the corrosion inhibition efficiency and adsorption capacity of lignin-AA on carbon steel surface were more significant than those of lignin-AM. AFM and SEM analyses showed that the surface of carbon steel was insignificantly affected in HCl solution containing lignin-AA. The mechanism of inhibition effectiveness of lignin-AA and ligninAM in HCl solution was also verified by molecular dynamics (MD) simulations.

引用

页数：9

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