PRODUCTION OF COMPOSITE POLYANILINE/SiO2 FOR APPLICATION IN EPOXY COATING AND INVESTIGATE OF THE ANTICORROSION PROPERTIES FOR CT3 STEEL | Trang | TNU Journal of Science and Technology

PRODUCTION OF COMPOSITE POLYANILINE/SiO2 FOR APPLICATION IN EPOXY COATING AND INVESTIGATE OF THE ANTICORROSION PROPERTIES FOR CT3 STEEL

About this article

Received: 10/11/22                Revised: 19/12/22                Published: 21/12/22

Authors

1. Nguyen Huu Trang Email to author, Coast Branch, Vietnam Russian Tropical Center
2. Mai Van Minh, Coast Branch, Vietnam Russian Tropical Center
3. Tran Van Bang, Coast Branch, Vietnam Russian Tropical Center
4. Nguyen Tien Nam, Coast Branch, Vietnam Russian Tropical Center
5. Trinh Thi Dao, Coast Branch, Vietnam Russian Tropical Center

Abstract


This paper presents the problem of enhancing the protective effect of CT3 steel surface in tropical climates by coatings containing polyaniline/SiO2 (PANi/SiO2). Polymer PANi/SiO2 was synthesized by chemical polymerization in an acidic environment with a molar concentration of 1M and a strong oxidizing agent, then mixed into epoxy paint and applied to CT3 steel surface to perform anticorrosion test. We found that when SiO2 was added to polyaniline polymer (PANi) and mixed with epoxy, the mechanical strength and corrosion resistance were significantly improved compared to paints containing only PANi polymer. In the test ratios, paint with component ratio PANi/SiO2 = 1/1 gave the best results in terms of adhesion of 2.2 MPa, impact strength of 15 kg.cm, stable film surface after 3 months of natural testing in a humid tropical climate.

Keywords


Polyaniline; Polyaniline/SiO2; Epoxy coating; Anticorrosion protect; Protect for CT3 steel

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DOI: https://doi.org/10.34238/tnu-jst.6905

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