Synthesis and properties of polyurethane foams prepared from heavy oil modified by polyols with 4,4′-methylene-diphenylene isocyanate (MDI)

► Polyurethane foams could not be directly prepared from heavy oil for its low hydroxyl number. ► After modification, heavy oil increased its hydroxyl number to 564.5mgKOH/g. ► Furthermore, the secondary alcohol hydroxyl was the main product. ► The compressive strength of foams increased 32% by addi...

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Veröffentlicht in:	Bioresource technology 2012-06, Vol.114, p.654-657
Hauptverfasser:	Zou, Xianwu, Qin, Tefu, Wang, Yong, Huang, Luohua, Han, Yanming, Li, Yan
Format:	Artikel
Sprache:	eng
Schlagworte:	Biomass Biomass liquefaction Gases - chemical synthesis Heavy oil Isocyanates - chemistry Polymers - chemistry Polyurethane foams Polyurethanes - chemical synthesis Properties Synthesis
Online-Zugang:	Volltext
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