Madhusudhana, Ambale Murthy and Mohana, Kikkeri Narasimha Shetty and Hegde, Mahesh Bhaskar and Nayak, Saurav Ramesh and Rajitha, Kamalon and Swamy, Ningappa Kumara (2020) Development of Al2O3.ZnO/GO-phenolic formaldehyde amine derivative nanocomposite: A new hybrid anticorrosion coating material for mild steel. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 601. ISSN 1873-4359
Full text not available from this repository. (Request a copy)Abstract
The hybrid nanocomposites are least explored materials in anti-corrosion application. In this context, Al2O3 center dot ZnO and Al2O3 center dot ZnO/GO nanocomposites were prepared and dispersed in the synthesized phenolic formaldehyde amine derivative (PFAd) polymer. The structural and the elemental composition of the nanocomposites and PFAd were ascertained through Fourier transfer infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and Energy dispersive X-ray spectroscopy (EDX) and Transition electron microscopy (TEM). The 0.2 wt.% of nanofiller was chosen as an optimum composition to obtain uniform dispersion in PFAd matrix. The surface morphology, texture and chemical composition of the coatings on mild steel (MS) surface have been studied by XRD and Scanning electron microscopy (SEM). The anti-corrosion performance of the coatings on MS in 3.5 wt.% NaCl solution was evaluated by electrochemical techniques. Electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PP) data revealed that, Al2O3 center dot ZnO/GO dispersed PFAd shows very good R-coat (3.81 x 10(2) ohm cm(2)) and R-ct (1.84 x 10(3) ohm cm(2)) with reasonably lower i(corr) (1.233 x 10(-3 )A/cm(2)) values even after 68 days of immersion. Further, it was found that, the barrier property of the coating depends on the composition and dispersibility of the fillers in the polymer matrix.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Phenol formaldehyde amine derivative; Nanohybrid material; Anti-corrosion coating; Electrochemical techniques; Surface morphology |
| Subjects: | C Chemical Science > Chemistry |
| Divisions: | Department of > Chemistry |
| Depositing User: | Mr Umendra uom |
| Date Deposited: | 09 Mar 2021 05:49 |
| Last Modified: | 09 Mar 2021 05:49 |
| URI: | http://eprints.uni-mysore.ac.in/id/eprint/15512 |
Actions (login required)
 |
View Item |
