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http://dx.doi.org/10.7842/kigas.2012.16.6.123

Study on the Properties of Flexible Polyurethane Foam at the Aging Condition  

Kim, Chang-Bum (Department of Chemical Engineering, Kyonggi University)
Kim, Sangbum (Department of Chemical Engineering, Kyonggi University)
Publication Information
Journal of the Korean Institute of Gas / v.16, no.6, 2012 , pp. 123-127 More about this Journal
Abstract
In order to establish the cause of the deformation of polyurethane foam, compression set was measured according to the aging temperature and time. FT-IR, TGA, DSC and DMA were used for investigating the cause of deformation of aged PUF. The results of FT-IR and TGA reveals that no structure change occurred during deformation of PUF. Resilience of aged PUF was reduced by the increase of reduction ratio in storage modulus over the glass transition temperature of hard segment.
Keywords
polyurethane; aging; compression set; elasticity;
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