Abstract
In this work, high-aspect-ratio graphite nanofibers (GNFs) were used to improve the electrical, thermal, and mechanical properties of the poly(methyl methacrylate) (PMMA) polymer, as well as those of PMMA composites suitable for use in bipolar plates. In the result, an electrical percolation threshold for the composites was formed between 1 and 2 wt% GNF content. This threshold was found to be influenced strongly by the three separate stages of the melt-blending process. The composites exhibited higher thermal and mechanical properties and lower thermal shrinkage compared with the neat PMMA. Thus, GNFs were demonstrated to have positive impacts on the thermo-mechanical properties of PMMA composites and showed, thereby, reasonable potential for use in composites employed in the fabrication of bipolar plates.
| Original language | English |
|---|---|
| Pages (from-to) | 671-674 |
| Number of pages | 4 |
| Journal | Bulletin of the Korean Chemical Society |
| Volume | 30 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1 Mar 2009 |
| Externally published | Yes |
Keywords
- Composite materials
- Graphite nanofibers
- Mechanical properties
- Polymer
- Thermal properties
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