Influence of carbon nanotube clustering on the electrical conductivity of polymer composite films
Electrical conductivity of 150–200 µm thick polysulfone films loaded with 0.05–0.75% w/w multiwall carbon nanotubes was systematically investigated for two types of dispersion states, uniformly dispersed and agglomerated at the micro-scale. The percolation threshold was...
Saved in:
| Format: | Article |
|---|---|
| Language: | English |
| Published: |
Budapest University of Technology and Economics
2010-05-01
|
| Series: | eXPRESS Polymer Letters |
| Subjects: | |
| Online Access: | http://www.expresspolymlett.com/letolt.php?file=EPL-0001405&mi=cd |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849710747716681728 |
|---|---|
| collection | DOAJ |
| description | Electrical conductivity of 150–200 µm thick polysulfone films loaded with 0.05–0.75% w/w multiwall carbon nanotubes was systematically investigated for two types of dispersion states, uniformly dispersed and agglomerated at the micro-scale. The percolation threshold was found at 0.11% and 0.068% w/w for the uniformly dispersed and agglomerated films, respectively. Overall, the conductivity of the films with agglomerated nanotubes was higher than that of the uniformly dispersed ones, with marked differences of 2 to 4 orders of magnitude for carbon nanotubes loadings in the upper vicinity of the percolation threshold (0.1–0.3% w/w). The increased conductivity of the agglomerated state is explained by the increased nanotube-to-nanotube contact after the percolating network has formed, which facilitates electron transfer. |
| format | Article |
| id | doaj-art-4246080b3e9d41afbf26572e070e06cb |
| institution | DOAJ |
| issn | 1788-618X |
| language | English |
| publishDate | 2010-05-01 |
| publisher | Budapest University of Technology and Economics |
| record_format | Article |
| series | eXPRESS Polymer Letters |
| spelling | doaj-art-4246080b3e9d41afbf26572e070e06cb2025-08-20T03:14:50ZengBudapest University of Technology and EconomicseXPRESS Polymer Letters1788-618X2010-05-014529229910.3144/expresspolymlett.2010.37Influence of carbon nanotube clustering on the electrical conductivity of polymer composite filmsElectrical conductivity of 150–200 µm thick polysulfone films loaded with 0.05–0.75% w/w multiwall carbon nanotubes was systematically investigated for two types of dispersion states, uniformly dispersed and agglomerated at the micro-scale. The percolation threshold was found at 0.11% and 0.068% w/w for the uniformly dispersed and agglomerated films, respectively. Overall, the conductivity of the films with agglomerated nanotubes was higher than that of the uniformly dispersed ones, with marked differences of 2 to 4 orders of magnitude for carbon nanotubes loadings in the upper vicinity of the percolation threshold (0.1–0.3% w/w). The increased conductivity of the agglomerated state is explained by the increased nanotube-to-nanotube contact after the percolating network has formed, which facilitates electron transfer.http://www.expresspolymlett.com/letolt.php?file=EPL-0001405&mi=cdPolymer compositesElectrical conductivityMWCNTpercolationclustering |
| spellingShingle | Influence of carbon nanotube clustering on the electrical conductivity of polymer composite films eXPRESS Polymer Letters Polymer composites Electrical conductivity MWCNT percolation clustering |
| title | Influence of carbon nanotube clustering on the electrical conductivity of polymer composite films |
| title_full | Influence of carbon nanotube clustering on the electrical conductivity of polymer composite films |
| title_fullStr | Influence of carbon nanotube clustering on the electrical conductivity of polymer composite films |
| title_full_unstemmed | Influence of carbon nanotube clustering on the electrical conductivity of polymer composite films |
| title_short | Influence of carbon nanotube clustering on the electrical conductivity of polymer composite films |
| title_sort | influence of carbon nanotube clustering on the electrical conductivity of polymer composite films |
| topic | Polymer composites Electrical conductivity MWCNT percolation clustering |
| url | http://www.expresspolymlett.com/letolt.php?file=EPL-0001405&mi=cd |