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Polymer Bulletin
Published in: Polymer Bulletin 1/2019

25-05-2018 | Original Paper

Effect of SiO2 nanoparticles on compression behavior of flexible polyurethane foam

Authors: Mohammad Hadi Moghim, Mozhgan Keshavarz, Seyed Mojtaba Zebarjad

Published in: Polymer Bulletin | Issue 1/2019

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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.
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Metadata
Title
Effect of SiO2 nanoparticles on compression behavior of flexible polyurethane foam
Authors
Mohammad Hadi Moghim
Mozhgan Keshavarz
Seyed Mojtaba Zebarjad
Publication date
25-05-2018
Publisher
Springer Berlin Heidelberg
Published in
Polymer Bulletin / Issue 1/2019
Print ISSN: 0170-0839
Electronic ISSN: 1436-2449
DOI
https://doi.org/10.1007/s00289-018-2384-0

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