Characterization of flexible polyurethane foams based on soybean-based polyols

Two series of flexible polyurethane foams were fabricated by substituting conventional petroleum-based polyols with increasing amounts of soy-based polyols (SBP) having different hydroxyl numbers. The mechanical properties of the foams were characterized by stress-strain analysis in the compression...

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Bibliographic Details
Published in:Journal of applied polymer science 2009-04, Vol.112 (1), p.299-308
Main Authors: Das, Sudipto, Dave, Mahendra, Wilkes, G.L
Format: Article
Language:English
Subjects:
Applied sciences
Cellular
Exact sciences and technology
Forms of application and semi-finished materials
mechanical properties
microstructure
morphology
Polymer industry, paints, wood
polyurethane
renewable resources
Technology of polymers
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Summary:Two series of flexible polyurethane foams were fabricated by substituting conventional petroleum-based polyols with increasing amounts of soy-based polyols (SBP) having different hydroxyl numbers. The mechanical properties of the foams were characterized by stress-strain analysis in the compression mode and DMA in tension mode, the cellular morphology was analyzed by SEM and the microphase-separation of the foams was noted by SAXS. Our results showed that the cellular morphology and mechanical properties of the flexible foams were affected significantly by the foam fabrication method and SBP hydroxyl numbers.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.29402