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From forest residues to hydrophobic nanocomposites with high oxygen-barrier properties
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.
2016 (English)In: Nordic Pulp & Paper Research Journal, ISSN 0283-2631, E-ISSN 2000-0669, Vol. 31, no 2, 261-269 p.Article in journal (Refereed) PublishedText
Abstract [en]

A biorefinery of forest resources should be able to convert all components of trees, including the bark and other types of forest residues, into value-added products. Here, non-cellulosic polysaccharides (NCPs) isolated from Norway spruce bark and cellulose nanocrystals (CNCs) isolated from the logging residues of Norway spruce were mixed to prepare nanocomposites with competitive thermo-mechanical properties. Polyepoxy acid (PEA) derived from a monomer of suberin in birch bark was used as a coating on the nanocomposites to develop functional materials entirely based on forest resources. All of the PEA-coated nanocomposites were hydrophobic. At 50% and 80% relative humidity, they showed high oxygen-barrier properties that were comparable to or even better than those of some renewable materials such as xylan-, galactoglucomannan- and nanofibrillated cellulose-based films and synthetic materials such as polyvinylidene chloride and polyamide.

Place, publisher, year, edition, pages
2016. Vol. 31, no 2, 261-269 p.
Keyword [en]
Biorefinery, Bark, Forest residue, Cellulose nanocrystal, Suberin
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-190530DOI: 10.3183/NPPRJ-2016-31-02-p261-269ISI: 000378442300012ScopusID: 2-s2.0-84977556451OAI: oai:DiVA.org:kth-190530DiVA: diva2:952932
Funder
VINNOVA
Note

QC 20160816

Available from: 2016-08-16 Created: 2016-08-12 Last updated: 2016-08-16Bibliographically approved

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Li, DongfangMoriana, RosanaEk, Monica
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