High protective performance coatings assembled by epoxy-modified furfural-acetone containing polyaniline nanowires for mild steel

被引：15
|
作者：
Han, Yufeng [1 ,2 ,3 ,4 ]
Wang, Jixiao [1 ,2 ,3 ,4 ]
Wang, Zhi [1 ,2 ,3 ,4 ]
Zhao, Song [1 ,2 ,3 ,4 ]
机构：
[1] Tianjin Univ, Sch Chem Engn & Technol, Chem Engn Res Ctr, Tianjin 300072, Peoples R China
[2] Tianjin Univ, Tianjin Key Lab Membrane Sci & Desalinat Technol, Tianjin 300072, Peoples R China
[3] Tianjin Univ, State Key Lab Chem Engn, Tianjin 300072, Peoples R China
[4] Tianjin Univ, Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China
来源：
PROGRESS IN ORGANIC COATINGS | 2019年 / 134卷
关键词：
Epoxy resin; Furfural-acetone resin; Polyaniline (PANI) nanowires; Corrosion protection; Electrochemical impedance spectroscopy (EIS); CORROSION PROTECTION; ORGANIC COATINGS; DOPED POLYANILINE; XPS SPECTRA; GRAPHENE; MECHANISM; POLYMERS; WATER;
D O I：
10.1016/j.porgcoat.2019.05.005
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
High performance protective coatings applied under heavy duty condition will lengthen the structure's service life, decrease maintenance times, economic and human life loss. Here, high protective performance coatings were prepared by dispersing polyaniline (PANI) nanowires into epoxy modified furfural-acetone (EMFA) resin matrix and then cured with phenalkamine. The protective performance of coatings was investigated by immersion experiments in 12% NaCl solution at 90 degrees C and Electrochemical Impedance Spectroscopy (EIS) measurements. The coating containing 1.0% PANI nanowires showed high impedance (> 10(10) ohm.cm(2)) after 80 days immersion, exhibiting great protective performance. X-ray photoelectron spectroscopy (XPS) surveys verified the formation of passive layer (Fe2O3/Fe3O4) on steel surface beneath the coating with 1.0% PANI. The bending test suggested that both the pure EMFA coating and the EMFA/PANI coating showed excellent flexibility of 2 mm. Here, measurement of water absorption, adhesion strength, pencil hardness and impact resistance were conducted to evaluate coatings performance.
引用
收藏
页码：48 / 57
页数：10
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