Journal of Materials Science

, Volume 27, Issue 20, pp 5449–5452 | Cite as

Photoacoustic characterization of the effects of air inclusion on the thermal properties of foamed polyurethane

  • N. F. Leite
  • L. C. M. Miranda


The usefulness of the open photoacoustic cell technique for investigating the effects of air inclusions on the thermal properties of foamed polyurethane is demonstrated. It is shown that the thermal diffusivity and thermal expansion coefficients increase with decreasing values of the resin to catalyst ratio, which corresponds to greater air inclusion in the resin.


Polymer Foam Thermal Expansion Thermal Property Polyurethane 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Chapman & Hall 1992

Authors and Affiliations

  • N. F. Leite
    • 1
  • L. C. M. Miranda
    • 2
  1. 1.Laboratório Associado de Sensores e MateriaisInstituto de Pesquisas EspaciaisSão José dos Campos, S. P.Brazil
  2. 2.Instituto Politécnico do Rio de JaneiroNova Friburgo, R. J.Brazil

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