Abstract
In this paper we compare the damping properties of polymer nano-composites filled with singlewalled and multiwalled carbon nanotube fillers. The polymer material chosen for this study is polycarbonate (Lexan 121, General Electric). The nanotube fillers are dispersed in the matrix using a novel solution mixing technique with tetra-hydro-furan as the solvent. Both the multiwalled and the singlewalled nanotube filled samples show higher damping level compared to the pristine (or unfilled) polycarbonate. However, the loss modulus of nano-composite samples with singlewalled nanotubes is significantly greater than with multiwalled tubes. This suggests that since the inner shells of the multiwalled tubes are not in contact with the polymer, they do not contribute to interfacial frictional sliding; this reduces the damping efficiency of the multiwalled tubes relative to the singlewalled tubes.
| Original language | English |
|---|---|
| Pages (from-to) | 1550-1557 |
| Number of pages | 8 |
| Journal | Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference |
| Volume | 3 |
| State | Published - 2005 |
| Externally published | Yes |
| Event | 46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference - Austin, TX, United States Duration: 18 Apr 2005 → 21 Apr 2005 |