journal article·2019-03-27Open access

Multifunctional Protective PVC-ZnO Nanocomposite Coatings Deposited on Aluminum Alloys by Electrospinning

Alvaro Iribarren, Pedro J. Rivero, Carlos Berlanga, Silvia Larumbe, Adrian Miguel, Jose F. Palacio, Rafael Rodriguez

Coatings· Volume 9· Issue 4

Abstract

This paper reports the use of the electrospinning technique for the synthesis of nanocomposite micro/nanofibers by combining a polymeric precursor with hydrophobic behavior like polyvinyl chloride (PVC) with nanoparticles of a corrosion inhibitor like ZnO. These electrospun fibers were deposited on substrates of the aluminum alloy 6061T6 until forming a coating around 100 μm. The effect of varying the different electrospinning deposition parameters (mostly applied voltage and flow-rate) was exhaustively analyzed in order to optimize the coating properties. Several microscopy and analysis techniques have been employed, including optical microscopy (OM), field emission scanning electron microscopy (FE-SEM), atomic force microscopy (AFM), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). Water contact angle (WCA) measurements have been carried out in order to corroborate the coating hydrophobicity. Finally, their corrosion behavior has been evaluated by electrochemical tests (Tafel curves and pitting potential measurements), showing a relevant improvement in the resultant corrosion resistance of the coated aluminum alloys.
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Research context

OpenAlex topics: Electrospun Nanofibers in Biomedical Applications · Surface Modification and Superhydrophobicity · Advanced Sensor and Energy Harvesting Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Materials Engineering Laboratory, Department of Engineering, Public University of Navarre, Campus Arrosadía S/N, 31006 Pamplona, Spain

Institute for Advanced Materials (InaMat), Public University of Navarre, Campus Arrosadía S/N, 31006 Pamplona, Spain

Centre of Advanced Surface Engineering, AIN, 31191 Cordovilla, Spain

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