Cellulose fiber based fungal and water resistant insulation materials
2017 (English)In: International Journal of the Biology, Chemistry, Physics, and Technology of Wood, E-ISSN 1437-434XArticle in journal (Refereed) Published
The development of thermal insulation materials from sustainable, natural fibrous materials is desirable.In the present study, cellulose fiber based insulation foams made of bleached chemi thermo mechanical pulp(CTMP) have been investigated. To improve water resistance, the foams were impregnated with hydrophobic extractives from the outer bark of birch (Betula verrucosa)and dried. The surface morphology of the foams and the distribution of the deposited particles from the extractives were observed by scanning electron microscopy (SEM).The modified foams showed improved water resistance, as they did not disintegrate after immersion in water for7 days, whereas the unmodified foam did. Compared to the unmodified foam, the modified foams absorbed 50%less moisture within 24 h. The modification had no negative effects on the thermal insulation properties, fungal resistance or compressive strength of the foams. The proposed approach is simple and can be easily integrated into plants working based on the biorefinery concept.
Place, publisher, year, edition, pages
Berlin, Germany: Walter de Gruyter, 2017.
biorefinery; birch bark; cellulose; fungal resistance; insulation; water resistance
Wood Science Paper, Pulp and Fiber Technology
Research subject Fibre and Polymer Science
IdentifiersURN: urn:nbn:se:kth:diva-205367DOI: 10.1515/hf-2016-0162OAI: oai:DiVA.org:kth-205367DiVA: diva2:1088761
ProjectsEnergy-efficient cellulosic insulation products/panels for green building solutions
FunderSwedish Research Council Formas