Synthesis, Characterization and Corrosion Protection Properties of Polyaniline/TiO2 Nanocomposite

Lian Zhong; Yan Hua Wang; Yong Hong Lu

doi:10.4028/www.scientific.net/AMR.399-401.2083

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Electrochemical Studies on the Passivation Behavior of Cu-Ni-Fe Alloy in Borate Buffer Solution at pH 8.4
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Study on Corrosion-Resisting Properties of High-Speed Arc Sprayed Zn-Al Alloy Coating in Caverns
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Effect of Phosphating Technologies on Corrosion Resistance of Phosphate Coatings on 6063 Aluminum Alloy
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Synthesis, Characterization and Corrosion Protection Properties of Polyaniline/TiO₂ Nanocomposite
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Post-Weld Oxidation Behavior of AA6061 Al Alloy
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Preparation of Activated Carbon from Medical Waste
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Formation Mechanism of Alumina Nanostrip
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Model Tests Study on the Bending Properties of the External Pre-Stressed Combination Box Girders with Corrugated Steel Webs
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 399-401Synthesis, Characterization and Corrosion...

Synthesis, Characterization and Corrosion Protection Properties of Polyaniline/TiO₂ Nanocomposite

Abstract:

In this study, conductive polyaniline (PANi)–titania (TiO₂) nanocomposites with core–shell structure were prepared and their anticorrosion properties were investigated. PANi/nano-TiO₂ composite were prepared by in situ polymerization of aniline monomer in the presence of TiO₂ nanoparticles. The morphology and structure of the polymer nanocomposite was characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR), respectively. SEM and FTIR spectra measurements show that PANi and TiO₂ nanoparticles are not simply blended or mixed up, and a strong interaction exists at the interface of nano-TiO₂ and PANi. From the anticorrosion investigation in 3.5%NaCl, it is revealed that the protective performance of epoxy paint containing PANi/nano-TiO₂ composite is significantly improved than PANi or a mixture of polyaniline and nano-TiO₂. From the improved anticorrosion performance, it also indicate that PANi and TiO₂ nanoparticles are not simply blended or mixed up, the strong interaction exists at the interface of PANi and nano-TiO2. It is the strong interaction that results in the coordinated effect and more excellent anticorrosion performance.