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3D printable filaments made of biobased polyethylene biocomposites
University of Vigo, Spain.
NTNU, Norway.
RISE - Research Institutes of Sweden, Bioeconomy, PFI.
University of Vigo, Spain.
Show others and affiliations
2018 (English)In: Polymers, ISSN 2073-4360, E-ISSN 2073-4360, Vol. 10, no 3, article id 314Article in journal (Refereed) Published
Abstract [en]

Two different series of biobased polyethylene (BioPE) were used for the manufacturing of biocomposites, complemented with thermomechanical pulp (TMP) fibers. The intrinsic hydrophilic character of the TMP fibers was previously modified by grafting hydrophobic compounds (octyl gallate and lauryl gallate) by means of an enzymatic-assisted treatment. BioPE with low melt flow index (MFI) yielded filaments with low void fraction and relatively low thickness variation. The water absorption of the biocomposites was remarkably improved when the enzymatically-hydrophobized TMP fibers were used. Importantly, the 3D printing of BioPE was improved by adding 10% and 20% TMP fibers to the composition. Thus, 3D printable biocomposites with low water uptake can be manufactured by using fully biobased materials and environmentally-friendly processes.

Place, publisher, year, edition, pages
2018. Vol. 10, no 3, article id 314
Keyword [en]
3D printing, Biocomposites, BioPE, Grafting, Laccase, Lauryl gallate, Octyl gallate, TMP, Composite materials, Fibers, Grafting (chemical), Hydrophobicity, Polyethylenes, Thermomechanical pulp, Thermomechanical pulping process, Void fraction, Water absorption, 3-D printing, Bio-composites, Laccases, 3D printers
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-33507DOI: 10.3390/polym10030314Scopus ID: 2-s2.0-85043719493OAI: oai:DiVA.org:ri-33507DiVA, id: diva2:1192852
Available from: 2018-03-23 Created: 2018-03-23 Last updated: 2018-03-23Bibliographically approved

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CiteExportLink to record
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Citation style
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