Hydrophobic polyaniline/modified SiO2 coatings for anticorrosion protection

被引：39

作者：

Shi, Shuanger ^{[1
,2
]}

Zhang, Zhiming ^{[1
,2
]}

Yu, Liangmin ^{[1
,2
]}

机构：

[1] Ocean Univ China, Key Lab Marine Chem Theory & Technol, Minist Educ, Qingdao 266100, Peoples R China

[2] Ocean Univ China, Qingdao Collaborat Innovat Ctr Marine Sci & Techn, Qingdao 266100, Peoples R China

来源：

SYNTHETIC METALS | 2017年 / 233卷

基金：

中国国家自然科学基金;

关键词：

Modified SiO2; Electrospun PANI coating; Corrosion protection; Self-repairing; CORROSION PROTECTION; ELECTROCHEMICAL PERFORMANCE; EMBEDDED NANOCONTAINERS; THERMAL-STABILITY; DOPED POLYANILINE; INHIBITION; STEEL; NANOCOMPOSITE; COMPOSITE; ELECTRODEPOSITION;

D O I：

10.1016/j.synthmet.2017.10.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, hydrophobic polyaniline (PANI)/modified SiO2 composite coatings were prepared by drop-casting modified silica onto electrospun PANI coatings. The PANI/modified SiO2 composite coatings showed excellent corrosion protection properties. The superior protection property of the PANI/modified SiO2 coatings could be ascribed to the synergistic effect of three factors as follows: the electrochemical activity of PANI, the efficient filling of modified SiO2 nanoparticles into the voids of the electrospun PANI coating, and the high hydrophobicity of the hybrid PANI/modified SiO2 coatings. Specifically, the results indicate that PANI/modified SiO2 by the dodecyltrimethoxysilane (PANI/SiO2-DTMS) (CA = 95 degrees) coating has a self-repairing function and shows an anticorrosion efficiency of 99.99% for Q235 carbon steel, which was maintained at 99.99% after 71 days of immersion in 0.1 M H2SO4.

引用

页码：94 / 100

页数：7

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