Journal
INDUSTRIAL CROPS AND PRODUCTS
Volume 42, Issue -, Pages 273-279Publisher
ELSEVIER
DOI: 10.1016/j.indcrop.2012.06.006
Keywords
Maple fiber; Composite foam; Polyurethane; Soybean oil; Woodpulp fiber
Categories
Funding
- NSERC
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Polyurethane (PU) composite foams were prepared by pour method with soy-based polyol (soyol). Foams were tested for the evaluation of mechanical properties and cell morphologies as a portion of wood fiber present. Thermal behaviors as well as foam morphology were investigated. Scanning electron microscopy results exhibited that PU composite foam had improved cell size due to the presence of wood fiber. Thermal gravimetric analysis and differential scanning calorimetry results clearly showed the most substantial increase of the glass transition temperature (T-g) and decrease of the decomposition temperature (T-d) in the fiber reinforced PU foam. PU composite foam had no influence on compressive strength; however, it had caused slight reduction in tensile strength. PU composite foam displayed a broad distribution of inter-domain spacing associating with morphological changes. (C) 2012 Elsevier B.V. All rights reserved.
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