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Polyisoprene  single-wall carbon nanotube composites synthesized under high pressure
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
2008 (English)In: High Pressure Research,  vol 28, No 4, 2008, 287-290 p.Conference paper, Published paper (Refereed)
Abstract [en]

The mechanical and thermal properties of high-pressure-synthesized composites of polyisoprene (PI) and single-walled carbon nanotubes (SWCNTs) (1 wt%) have been measured using a tensile tester and the transient hot-wire method. PI–SWCNT composites were prepared by ultrasonic mixing in toluene to obtain good dispersion of the nanotubes within the polymer matrix, which was verified by atomic force microscopy. The mixtures were dried for several days under dynamic vacuum and subsequently treated at a high pressure (0.5 GPa) and temperature (513 K) to improve the SWCNT–polymer interaction. As a result of the high-pressure treatment, PI becomes crosslinked, yielding an elastomeric PI–SWCNT composite. Preliminary results show that the tensile strength and Young’s modulus of the composite are 2.8 and five times higher, respectively, than those of pure high-pressure-treated PI, and that the thermal conductivity increased 30% by adding 1 wt% SWCNTs.

Place, publisher, year, edition, pages
2008. 287-290 p.
Series
High Pressure Research, 28:4
National Category
Condensed Matter Physics
Research subject
Physics
Identifiers
URN: urn:nbn:se:umu:diva-18960DOI: 10.1080/08957950802444788OAI: oai:DiVA.org:umu-18960DiVA: diva2:201043
Available from: 2009-03-02 Created: 2009-03-02 Last updated: 2015-11-11Bibliographically approved

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Tonpheng, BounphanhYu, JunchunAndersson, Ove

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