This work is aimed at fabricating nanocomposites based on zinc oxide (ZnO) nanostructures and nanocellulose dispersed in a UV-cured acrylic matrix(EC) for application as functional coatings for self-powered applications. Morphological, thermal, and dynamic mechanical properties of the nanocompositeswere characterized by X-Ray diffractometry (XRD), scanning electron microscopy, and differential scanning calorimetry. The piezoelectric behavior wasevaluated in terms of root mean square (RMS) open circuit voltage, at different accelerations applied to cantilever beams. The generated voltage was correlatedwith ZnO nanostructures morphology, aluminum nitride film integration on the beam and proof mass insertion at the tip. Nitride layer increased the RMSvoltage from 1 to 2.4 mV up to 3.9 mV (using ZnO nanoflowers). As confirmed by XRD analyses, the incorporation of ZnO nanostructures into the acrylicmatrix favored an ordered structural arrangement of the deposited AlN layer, hence improving the piezoelectric response of the resulting nanocomposites.With proof mass insertion, the output voltage was further increased, reaching 4.5 mV for the AlN-coated system containing ZnO nanoflowers

Synthesis and characterization of UV-curable nanocellulose/ZnO/AlN acrylic flexible films: Thermal, dynamic mechanical and piezoelectric response

Maria Assunta Signore;Chiara De Pascali;Donatella Duraccio;Ambra Fioravanti;Enrico Melissano;Maria Concetta Martucci;Maurizio Masieri;Pietro Siciliano;Luca Francioso
2021

Abstract

This work is aimed at fabricating nanocomposites based on zinc oxide (ZnO) nanostructures and nanocellulose dispersed in a UV-cured acrylic matrix(EC) for application as functional coatings for self-powered applications. Morphological, thermal, and dynamic mechanical properties of the nanocompositeswere characterized by X-Ray diffractometry (XRD), scanning electron microscopy, and differential scanning calorimetry. The piezoelectric behavior wasevaluated in terms of root mean square (RMS) open circuit voltage, at different accelerations applied to cantilever beams. The generated voltage was correlatedwith ZnO nanostructures morphology, aluminum nitride film integration on the beam and proof mass insertion at the tip. Nitride layer increased the RMSvoltage from 1 to 2.4 mV up to 3.9 mV (using ZnO nanoflowers). As confirmed by XRD analyses, the incorporation of ZnO nanostructures into the acrylicmatrix favored an ordered structural arrangement of the deposited AlN layer, hence improving the piezoelectric response of the resulting nanocomposites.With proof mass insertion, the output voltage was further increased, reaching 4.5 mV for the AlN-coated system containing ZnO nanoflowers
2021
Istituto di Scienze e Tecnologie per l'Energia e la Mobilità Sostenibili - STEMS
Istituto per la Microelettronica e Microsistemi - IMM
Istituto per le Macchine Agricole e Movimento Terra - IMAMOTER - Sede Ferrara (attivo dal 18/11/1923 al 31/12/2021)
Istituto per i Beni Archeologici e Monumentali - IBAM - Sede Catania (attivo dal 18/11/1923 al 31/12/2023)
coatings
composites
manufacturing
nanoparticles
nanowires and nanocrystals
sensors and actuators
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/423353
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