Poly(propylene glycol)-Grafted Multi-Walled Carbon Nanotube Polyurethane

✍ Scribed by Hesheng Xia; Mo Song; Jie Jin; Lei Chen

• Book ID: 102490002
• Publisher: John Wiley and Sons
• Year: 2006
• Tongue: English
• Weight: 422 KB
• Volume: 207
• Category: Article
• ISSN: 1022-1352
• DOI: 10.1002/macp.200600349

✦ Synopsis

Abstract

Summary: Poly(propylene glycol)‐grafted MWNT polyurethane was synthesized based on the hydroxyl functionalized MWNTs through a two‐step reaction. The grafted MWNTs can improve the rheological behavior of the polyol/MWNT dispersion, and have a better reinforcing effect on the mechanical properties of polyurethane and lower hysteresis compared to the raw carbon nanotubes. A comparison for energy dissipation in PU/carbon nanotube and exfoliated PU/organoclay nanocomposites was given. The energy dissipated in the grafted MWNT composite system is lower.

Dispersion stability of carbon nanotubes in polyether polyol after 40 min centrifugation (A: MWNT, B: MWNT‐OH, C: MWNT‐graft‐PU).

magnified imageDispersion stability of carbon nanotubes in polyether polyol after 40 min centrifugation (A: MWNT, B: MWNT‐OH, C: MWNT‐graft‐PU).