Laser Treatments for Improving Electrical Conductivity and Piezoresistive Behavior of Polymer–Carbon Nanofiller Composites
| Autor: | Claudio Francesco Badini, Antonino Veca, Mario Pietroluongo, Andrea Caradonna, Enea De Meo, Elisa Padovano |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Filler (packaging)
Materials science lcsh:Mechanical engineering and machinery chemistry.chemical_element 02 engineering and technology Carbon nanotube Conductivity 010402 general chemistry 01 natural sciences Article law.invention law lcsh:TJ1-1570 Electrical and Electronic Engineering Composite material Electrical conductor chemistry.chemical_classification electrical conductivity Mechanical Engineering Percolation threshold Polymer 021001 nanoscience & nanotechnology Piezoresistive effect 0104 chemical sciences chemistry Control and Systems Engineering carbon nanofillers piezoresistive behavior 0210 nano-technology Carbon |
| Zdroj: | Micromachines, Vol 10, Iss 1, p 63 (2019) Micromachines Volume 10 Issue 1 |
| Popis: | The effect of carbon nanotubes, graphene-like platelets, and another carbonaceous fillers of natural origin on the electrical conductivity of polymeric materials was studied. With the aim of keeping the filler content and the material cost as low as possible, the effect of laser surface treatments on the conductivity of polymer composites with filler load below the percolation threshold was also investigated. These treatments allowed processing in situ conductive tracks on the surface of insulating polymer-based materials. The importance of the kinds of fillers and matrices, and of the laser process parameters was studied. Carbon nanotubes were also used to obtain piezoresistive composites. The electrical response of these materials to a mechanical load was investigated in view of their exploitation for the production of pressure sensors and switches based on the piezoresistive effect. It was found that the piezoresistive behavior of composites with very low filler concentration can be improved with proper laser treatments. |
| Databáze: | OpenAIRE |
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