Development of new piezoelectric composites based on Polymer/Carbon Nanotube/PZT w...
| Grant number: | 17/19913-7 |
| Support type: | Scholarships in Brazil - Scientific Initiation |
| Effective date (Start): | September 01, 2018 |
| Effective date (End): | February 28, 2019 |
| Field of knowledge: | Engineering - Electrical Engineering - Electrical, Magnetic and Electronic Measurements, Instrumentation |
| Principal Investigator: | Michael Jones da Silva |
| Grantee: | Diego Silva de Melo |
| Home Institution: | Universidade Estadual Paulista (UNESP). Campus de Rosana. Rosana , SP, Brazil |
Abstract Nowadays, the search for intelligent materials that on the action of an external stimulus has its physical and / or chemical properties modified in response has been great. Within this class, we highlight the piezoelectric materials, which under the action of an external stimulus produce an electric current. This project aims at the development of a new piezoelectric three-phase biopolymer/ferroelectric ceramic with 0-3 connectivity and a third conductive phase (carbon black) aiming its application as a piezoelectric sensor. The main innovation of the project is the use of a polymer matrix from renewable and natural source, such as polyurethane based on castor oil, aiming to add even more value to these national products. The SEM technique will be used to study the composite morphology as well as the distribution of the ceramic particulate and the carbon black nanoparticles. Mechanical tests will be performed to evaluate the mechanical properties of the composites and to as certain the good phase interaction in the final mechanical properties of the composite. The evaluation of the piezoelectric coefficient of the samples will be performed as a function of the applied electric field, the amount of ceramic particles and conductive particulate. Finally, it will be proposed the development of a piezoelectric sensor to prevent cracks in construction. | |