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Article
Preparation and physico-mechanical, thermal and acoustic properties of flexible polyurethane foams based on hydroxytelechelic natural rubber
Journal of Applied Polymer Science (2010)
  • Anuwat Saetung
  • Adisai Rungvichaniwat
  • Irène Campistron
  • Pairote Klinpituksa
  • Albert Laguerre
  • Pranee Phinyocheep, Mahidol University
  • Olivier Doutres
  • Jean-Francois Pilard
Abstract
Novel flexible polyurethane foams were successfully prepared from a renewable source, hydroxytelechelic natural rubber (HTNR) having different molecular weights (1000-3400 g mol-1) and variation of epoxide contents (EHTNR, 0-35% epoxidation) by a one-shot technique. The chemical and cell structures as well as physico-mechanical, thermal, and acoustic properties were characterized and compared with commercial polyol analogs. The obtained HTNR based foams are open cell structures with cell dimensions between 0.38 and 0.47 mm. The HTNR1000 based foam exhibits better mechanical properties but lower elongation at break than those of commercial polyol analog. However, the HTNR3400 based foam shows the best elastic properties. In a series of EHTNR based foams, the tensile and compressive strengths show a tendency to increase with increasing epoxide content and amount of 1,4-butanediol (BD). The HTNR based foams demonstrate better low temperature flexibility than that of the foam based on commercial polyol. Moreover, the HTNR based polyurethane foams was found to be an excellent absorber of acoustics.
Keywords
  • polyurethane foams,
  • Physico-mechanical properties,
  • acoustic properties,
  • telechelic,
  • natural rubber
Publication Date
March, 2010
Citation Information
Anuwat Saetung, Adisai Rungvichaniwat, Irène Campistron, Pairote Klinpituksa, et al.. "Preparation and physico-mechanical, thermal and acoustic properties of flexible polyurethane foams based on hydroxytelechelic natural rubber" Journal of Applied Polymer Science Vol. 127 Iss. 2 (2010)
Available at: http://works.bepress.com/olivier_doutres/9/