Development of New Piezoelectric Composites based on Polymer/Carbon Nanotube/PZT with Connectivity 1-3 and 0-3, Aiming for Application as Energy Harvesting and Sensors.

• Grant number: 17/19809-5
• Support Opportunities: Regular Research Grants
• Start date: October 01, 2018
• End date: December 31, 2020
• Field of knowledge: Engineering - Electrical Engineering - Electrical, Magnetic and Electronic Measurements, Instrumentation
• Principal Investigator: Michael Jones da Silva
• Grantee: Michael Jones da Silva
• Host Institution: Universidade Estadual Paulista (UNESP). Campus de Rosana. Rosana , SP, Brazil
• Associated researchers: Elói Fonseca

Abstract

Nowadays, it has been a great demand for intelligent materials that on the action of an external stimulus have their physical and/or chemical properties modified as response. Within this class, it highlights the piezoelectric materials, which under the action of an external stimulus produce an electric current. Aiming at this theme, the present project aims to develop new polymer/ferroelectric ceramic piezoelectric composites with connectivity 1-3 and 0-3, with and without a third conductive phase (carbon nanotubes), aiming its application as energy harvesting and piezoelectric sensor. Four polymer matrices will be used as support for particulates and ceramic microwires. The main innovation of the project is the use of two matrices from renewable and natural sources, such as castor oil- based polyurethane and natural rubber, in order to add even more value to these national products. The electrical and dielectric properties of the composites will be evaluated by impedance spectroscopy technique in order to determine the relaxation processes and the conduction process, as well as the resonance frequency. The evaluation of the piezoelectric coefficient of the samples will be performed as a function of the applied electric field, the quantity of microwire and ceramic particulates, and the amount of conductive particulate. A comparative analysis will be carried out between the results of the different composites in order to determine which of the matrices presented better dielectric, electric, piezoelectric and electromechanical coupling properties. Finally, it will be proposed the development of a energy harvesting device and its viability as a piezoelectric sensor. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

JOÃO GUSTAVO LEITE COSTA; PEDRO HENRIQUE FERRARREZI RODRIGUES; LEONARDO LATARO PAIM; ALEX OTÁVIO SANCHES; JOSÉ ANTÔNIO MALMONGE; MICHAEL JONES DA SILVA. 1-3 Castor Oil-Based Polyurethane/PZT Piezoelectric Composite as a Possible Candidate for Structural Health Monitoring. MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS, v. 23, n. 5, 2020-10-26. (17/19809-5, 16/15718-2)

MELO, DIEGO S. S.; REIS, IDALCI C. C.; QUEIROZ, JULIO C.; CENA, CICERO R. R.; NAHIME, BACUS O. O.; MALMONGE, JOSE A.; SILVA, MICHAEL J. J.. Evaluation of Piezoresistive and Electrical Properties of Conductive Nanocomposite Based on Castor-Oil Polyurethane Filled with MWCNT and Carbon Black. MATERIALS, v. 16, n. 8, p. 17-pg., 2023-04-01. (17/19809-5)

FREIRE FILHO, FERNANDO C. M.; SANTOS, JOSIANE A.; SANCHES, ALEX O.; MEDEIROS, ELITON S.; MALMONGE, JOSE A.; SILVA, MICHAEL J.. Dielectric, electric, and piezoelectric properties of three-phase piezoelectric composite based on castor-oil polyurethane, lead zirconate titanate particles and multiwall carbon nanotubes. Journal of Applied Polymer Science, v. 140, n. 9, p. 12-pg., 2023-01-05. (13/07296-2, 17/19809-5)