Abstract
The percolation threshold of high-density polyethylene (HDPE)/isotactic polypropylene (iPP) blends filled with vapor-grown carbon fiber (VGCF), 1.25 parts per hundred parts resin (phr) VGCF content, is much lower than those of the individual polymers. SEM micrographs verified that the improvement of electrical conductivity can be attributed to the selective location of VGCF in the HDPE phase. A double percolation is the basic requirement for the conductivity of the composites, i.e., the percolation of carbon fibers in the HDPE phase, and the continuity of this phase in the polymer blends. Short carbon fibers may affect the morphology of the polymer blends.
Original language | English |
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Pages (from-to) | 186-190 |
Number of pages | 5 |
Journal | Materials Letters |
Volume | 36 |
Issue number | 1-4 |
DOIs | |
Publication status | Published - Jul 1998 |
Externally published | Yes |
Keywords
- Double percolation
- Electrical conductivity
- Polymer blends
- Selective location
- Short carbon fiber
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering