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Polyurethane foams produced from pyrolysis oil - production and possible application

Presentation held at 25th European Biomass Conference and Exhibition, EUBCE 2017, Stockholm, 12-15 June 2017
: Schulzke, Tim; Iakovleva, Anastasiia; Cao, Qiongmin; Conrad, Stefan; Zabelkin, Sergey; Grachev, Andrey

Präsentation urn:nbn:de:0011-n-4527559 (2.4 MByte PDF)
MD5 Fingerprint: 2c86c13f027a15792c25a3217dfddb5b
Erstellt am: 30.6.2017

2017, 30 Folien
European Biomass Conference and Exhibition (EUBCE) <25, 2017, Stockholm>
Vortrag, Elektronische Publikation
Fraunhofer UMSICHT Oberhausen ()
ablative fast pyrolysis; staged condensation; rigid polyurethane foams

Rigid polyurethane (PU) foams are widely used for instance in building insulation. Two component systems comprising of a polyol (either polyether- or polyester-polyol) as component A and a diisocyanate as component B are generally applied. Both components are produced from fossil oil resources. The liquid products from fast pyrolysis of biomass, called biooil hereafter, contain a largevariety of organic compounds with –OH functional groups. This gives rise to the idea to substitute the polyol component in PU foams with such biomass based intermediates. Following some exploratory experiments a more systematic study is under way to examine the possibility of such substitution. Biooils derived from woody and herbaceous biomass were produced using a laboratory plant for ablative fast pyrolysis. The biooils were pretreated and samples of PU foams produced with a varying amount of biooil substituting the polyol component. Especially the biooils produced from straw showed good insulation property expressed as low thermal conductivity. The achieved thermal conductivity of 0.0283 W/mK with a substitution degree of 80 % was 8 % lower than for the foams produced from commercial components (0.0308 W/mK). These results show high potential for the application of bio-based intermediates in the building sector. Further investigation on other properties are necessary, but the main requirements for thermal conductivity are already met without optimization of the catalyst/stabilizer system.