期刊
JOURNAL OF POROUS MATERIALS
卷 18, 期 5, 页码 631-638出版社
SPRINGER
DOI: 10.1007/s10934-010-9419-8
关键词
Rigid polyurethane-polyisocyanurate foams; Properties of foams; Wheat slops; Filler for foams
Solid parts of the wheat slops (90% w/w of dry mass and 10% w/w of water) were applied as a filler (5-30% w/w in relation to the sum of polyisocyanate and polyol masses) in PUR-PIR composition. Six foams containing different amounts of slops were prepared by this method and then, their physical-mechanical properties i.e. apparent density, compressive strength, brittleness, after-combustion residue, stability of linear dimensions, change of volume, loss in mass (48 h, temp 120 A degrees C), softening point, content of the closed cells and absorbability of water were determined. Moreover, the foams were subjected to thermogravimetric and infrared analyses.
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