Journal
MACROMOLECULAR MATERIALS AND ENGINEERING
Volume 299, Issue 7, Pages 869-877Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/mame.201300377
Keywords
carbon nanotubes; conductivity; laser treatment; mid; polymer blends
Funding
- German Federal Ministry of Education (BMBF) within the Innovation Alliance Inno. CNT, project CarboAktiv [BMBF 03X0206F]
Ask authors/readers for more resources
Electrical non-conductive polymer blends consisting of a polypropylene (PP) matrix and dispersed particles of polycarbonate (PC) were melt compounded with 3 wt.% multiwalled carbon nanotubes (MWCNTs) loading and processed into plates by injection molding. The morphological analysis confirmed the selective localization of the MWCNTs in the PC component. By local irradiation with a CO2 laser beam, depending on the laser conditions, conductive tracks with dimensions of about 2mm width, 80 to 370 mu m depth and line resistances as low as 1.5 k Omega.cm(-1) were created on the surface of the non-conductive plates. The factors affecting the line resistance are the PC content, the laser speed and laser power, as well as laser direction with respect to the melt flow direction. After the irradiation an enrichment of MWCNTs in the laser lines was detected indicating that conductive paths were generated by percolation of nanotubes selectively within these lines in otherwise non-conductive plates.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available