The Effect of Zirconia Nanoparticles on Thermal, Mechanical, and Corrosion Behavior of Nanocomposite Epoxy Coatings on Steel Substrates

被引：10

作者：

Alam, Mohammad Asif ^{[1
]}

Samad, Ubair Abdus ^{[1
]}

Anis, Arfat ^{[2
]}

Sherif, El-Sayed M. ^{[1
]}

Abdo, Hany S. S. ^{[1
]}

Al-Zahrani, Saeed M. M. ^{[2
]}

机构：

[1] King Saud Univ, Ctr Excellence Res Engn Mat CEREM, Riyadh 11421, Saudi Arabia

[2] King Saud Univ, SABIC Polymer Res Ctr SPRC, Chem Engn Dept, POB 800, Riyadh 11421, Saudi Arabia

来源：

MATERIALS | 2023年 / 16卷 / 13期

关键词：

corrosion protection; coatings; EIS; mechanical properties; thermal behavior; GRAPHENE OXIDE; COMBINATIONS; PERFORMANCE; POLYPYRROLE; HARDNESS; LOAD;

D O I：

10.3390/ma16134813

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Zirconia (ZrO2) nanoparticles (1-3 wt.%) were incorporated into the epoxy matrix using the ultra-sonication mixing method of dispersion to manufacture nanocomposite coatings. An automatic applicator was used to prepare the coating samples on a stainless steel substrate. The influence of ZrO2 nanoparticles on the physicochemical characteristics of epoxy coatings was evaluated using energy dispersive X-ray spectroscopy (EDS), field emission scanning electron microscopy (FE-SEM), Fourier-transform infrared spectroscopy (FTIR), thermos-gravimetric analysis (TGA), elastic modulus, and micro-hardness measurement with the nano-indentation technique. The corrosion stability during immersion in 3.5% NaCl solution was monitored using electrochemical impedance spectroscopy (EIS). All ZrO2-containing coatings showed better corrosion stability and adhesion than pure epoxy coating. Epoxy coating incorporated with 2% ZrO2 exhibited the greatest values of corrosion resistance and adhesion due to the effect of nanoparticle properties and their better de-agglomeration in the epoxy matrix than pure epoxy coating.

引用

页数：15

共 32 条

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