Innovative approach to the development of conductive hybrid composites for Selective Laser Sintering
| Autor: | Oxana Ostrovskaya, Alessandro Russo, Elisa Padovano, Federico Lupone, Claudio Francesco Badini |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
chemistry.chemical_element 02 engineering and technology 010402 general chemistry 01 natural sciences Carbon fibres law.invention Electrical resistivity and conductivity law Graphite Composite material Electrical conductor 3-D printing Hybrid Electrical properties Material Design 021001 nanoscience & nanotechnology Microstructure 0104 chemical sciences Selective laser sintering chemistry Mechanics of Materials Polyamide Ceramics and Composites 0210 nano-technology Carbon |
| Popis: | Selective Laser Sintering (SLS) was used to manufacture electrically conductive polymer composites made of polyamide 12 reinforced with carbon fibres and graphite (PA12/CF/GP). Since material design is critical in developing conductive polymer composites, an innovative experimental technique is proposed to preliminary evaluate the electrical behaviour of the powders before SLS processing and select the most performing hybrid compositions. The properties of starting powders and the microstructure, mechanical and electrical behaviour of PA12/CF/GP composites were studied. Results reveal that the addition of graphite lowers the flowability and mechanical properties of the composites compared to the carbon fibres reinforced counterparts. Hybrid composites display great enhancements in the electrical conductivity with respect to the neat PA12 up to anti-static and conductive range; however, no synergistic effect between the two fillers was observed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|