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Modified and thermoplastic rapeseed straw xylan: A renewable additive in PCL biocomposites
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology.ORCID iD: 0000-0002-2041-5786
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology.ORCID iD: 0000-0002-1631-1781
2018 (English)In: Industrial crops and products (Print), ISSN 0926-6690, E-ISSN 1872-633X, Vol. 119, p. 73-82Article in journal (Refereed) Published
Abstract [en]

Xylan extracted from rapeseed straw was chemically modified to gain hydrophobic and thermoplastic properties via macroinitiator formation followed by a free radical grafting-from polymerization with octadecyl acrylate. Biocomposites were then prepared by incorporation of 5 or 20% (w/w) rapeseed straw xylan into a poly(epsilon-caprolactone) (PCL) matrix by melt extrusion. The grafted xylan was homogeneously distributed within the biocomposite and reinforced the PCL matrix while at the same time preserving the ability to elongate to tensile strains > 500%. Analogous biocomposites made from unmodified xylan in a PCL matrix resulted in heterogeneous mixtures and brittle tensile properties.

Place, publisher, year, edition, pages
Elsevier, 2018. Vol. 119, p. 73-82
Keywords [en]
Biocomposite, Grafting, Hemicellulose, Rapeseed/canola straw, Thermoplastic, Xylan
National Category
Polymer Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-227505DOI: 10.1016/j.indcrop.2018.03.067ISI: 000432763800009Scopus ID: 2-s2.0-85045072624OAI: oai:DiVA.org:kth-227505DiVA, id: diva2:1206966
Funder
Swedish Research Council Formas, 2013-844
Note

QC 20180518

Available from: 2018-05-18 Created: 2018-05-18 Last updated: 2018-06-13Bibliographically approved

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Svärd, AntoniaEdlund, Ulrica

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