Abstract
The effects of ultrasonication and UV/ozone treatment of graphite on electrical conductivity of epoxy-based nanocomposites containing graphite nanoplatelets are investigated. Ultrasonication applied at various stages of composite fabrication enhanced the exfoliation and dispersion of graphite within the matrix. A porous multi-layer graphite structure resulted in a higher electrical conductivity and poorer mechanical properties than the completely exfoliated graphite. UV/ozone treatment improved both the electrical conductivity and mechanical properties by improving the graphite-epoxy interfacial adhesion, which is attributed to ameliorating changes in graphite surface chemistry and morphology.
| Original language | British English |
|---|---|
| Pages (from-to) | 235-240 |
| Number of pages | 6 |
| Journal | Scripta Materialia |
| Volume | 53 |
| Issue number | 2 |
| DOIs | |
| State | Published - Jul 2005 |
Keywords
- Electrical conductivity
- Graphite
- Nanocomposite
- UV/ozone treatment
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