Morphology of polyurethane flexible foam prepared using soybean oil derived polyol

Ling Zhang, Hyun K. Jeon, Jeff Malsam, Ron Herrington, Christopher W. Macosko

Research output: Contribution to conferencePaperpeer-review

Abstract

In this study three polyurethane (PU) flexible foams were prepared by using polyether polyol and by replacing 30% of the polyether polyol with soybean oil-derived polyol (SBOP) and styrene acrylonitrile (SAN) copolymer filled polyol. Scanning electron microscope, dynamic mechanical analysis (DMA), and small angle X-ray scattering (SAXS) were used to examine the cellular structure and the polymer morphology. Compared to the all petroleum-based PU foams, DMA of the SBOP-containing foam showed broader glass transition temperature accompanied by a more gradual decay of the storage modulus (G′) with temperature. The SAXS results exhibited a decrease in signal intensity as SBOP is incorporated into the foam, which corresponds to a decrease in electron density contrast between the hard and soft phases. Both behaviors observed in DMA and SAXS suggest an increased degree of phase mixing in SBOP-containing foam.

Original languageEnglish (US)
Pages161-171
Number of pages11
StatePublished - Dec 1 2006
EventSociety of Petroleum Engineers - 5th International Conference on Thermoplastic Foam, FOAMS 2006 - Chicago, IL, United States
Duration: Sep 13 2006Sep 14 2006

Other

OtherSociety of Petroleum Engineers - 5th International Conference on Thermoplastic Foam, FOAMS 2006
CountryUnited States
CityChicago, IL
Period9/13/069/14/06

Keywords

  • Morphology
  • Polyurethane flexible foam
  • Soybean oil polyol

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