Carbon nanotubes and silver flakes filled epoxy resin for new hybrid conductive adhesives
| Autor: | Frédéric Courtade, Tomasz Falat, Alain Peigney, Philippe Demont, Thierry Jamin, Fabien Marcq, Christophe Laurent, Philippe Monfraix |
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| Přispěvatelé: | Centre National d'Études Spatiales - CNES (FRANCE), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Thales (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Wroclaw University of Technology (POLAND) |
| Rok vydání: | 2011 |
| Předmět: |
Materials science
Matériaux Epoxy Carbon nanotube Dynamic mechanical analysis DWCNTs Condensed Matter Physics Atomic and Molecular Physics and Optics Surfaces Coatings and Films Electronic Optical and Magnetic Materials law.invention Agglomerate Electrical resistivity and conductivity law visual_art SEM Volume fraction visual_art.visual_art_medium Adhesive MWCNTs Electrical and Electronic Engineering Composite material Safety Risk Reliability and Quality Electrical conductor |
| Zdroj: | Microelectronics Reliability. 51:1230-1234 |
| ISSN: | 0026-2714 |
| DOI: | 10.1016/j.microrel.2011.03.020 |
| Popis: | Combining conductive micro and nanofillers is a new way to improve electrical conductivity. Micrometric silver flakes and nanometric carbon nanotubes (CNTs) exhibit high electrical conductivity. A new type of hybrid conductive adhesives filled with silver flakes and carbon nanotubes (DWCNTs or MWCNTs) were investigated. High electrical conductivity is measured as well as improved mechanical properties at room temperature. Small agglomerates and free MWCNTs dispersed in the silver/epoxy composites improve the electrical conductivity and a synergistic effect between MWCNTs and micro sized silver flakes is observed in hybrid composites. Glassy and rubbery storage moduli of the hybrid composites increase with increasing silver loading at fixed CNTs volume fraction. High value of the storage modulus, measured in DWCNTs/μAg hybrid composites at rubbery state, is caused by strong agglomeration of DWCNTs bundles. The electrical and mechanical properties are consistent with the morphologies of the hybrid composites characterized by SEM. |
| Databáze: | OpenAIRE |
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