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Polymer Bulletin

, Volume 76, Issue 1, pp 227–239 | Cite as

Effect of SiO2 nanoparticles on compression behavior of flexible polyurethane foam

  • Mohammad Hadi MoghimEmail author
  • Mozhgan Keshavarz
  • Seyed Mojtaba Zebarjad
Original Paper
  • 65 Downloads

Abstract

In the current study, flexible polyurethane foam was reinforced with different contents of SiO2 nanoparticles (0.5–2 wt%). Compression test was performed in a range of strain rates (1–20 min−1), and compression set test was also done at different temperatures. Results showed that addition of SiO2 nanoparticles improved compression properties of PU foam and the sample with 0.5 wt% SiO2 nanoparticles exhibited the highest mechanical performance with about 180 and 40% improvements in the compressive plateau and densification stress. Strain rate was showing a positive effect on these parameters with the enhancements of 360 and 90%. It was also shown that the temperature had a remarkable effect on compression set behavior of nanocomposite as the values change from 0.5% at − 20 °C to near 79% at 100 °C. Finally, microscopy micrographs confirmed the appearance of larger cell pores and a greater tendency for incomplete cell opening with increasing SiO2 content.

Keywords

Polyurethanes Foams Compression set Nanoparticles Composites 

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Mohammad Hadi Moghim
    • 1
    Email author
  • Mozhgan Keshavarz
    • 1
  • Seyed Mojtaba Zebarjad
    • 1
  1. 1.Department of Materials Science and Engineering, Engineering SchoolShiraz UniversityShirazIran

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