University of Oulu

Juho Antti Sirviö, Miikka Visanko, Jonne Ukkola, Henrikki Liimatainen, Effect of plasticizers on the mechanical and thermomechanical properties of cellulose-based biocomposite films, Industrial Crops and Products, Volume 122, 15 October 2018, Pages 513-521, ISSN 0926-6690, https://doi.org/10.1016/j.indcrop.2018.06.039

Effect of plasticizers on the mechanical and thermomechanical properties of cellulose-based biocomposite films

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Author: Sirviö, Juho Antti1; Visanko, Miikka1; Ukkola, Jonne1;
Organizations: 1Fibre and Particle Engineering Research Unit, P.O. Box 4300, FI-90014, University of Oulu, Finland
Format: article
Version: accepted version
Access: embargoed
Persistent link: http://urn.fi/urn:nbn:fi-fe2018062626476
Language: English
Published: Elsevier, 2018
Publish Date: 2020-06-14
Description:

Abstract

Biocomposites based on natural cellulose fibers (CF) and hydroxyethyl cellulose (HEC), were produced in the form of green packaging films. The effect of the different single-component plasticizers (glycerol, propylene carbonate and ethylene carbonate) on the mechanical and dynamic thermomechanical properties of the films were studied. Moreover, the softening effect of the two-component plasticizer based on deep eutectic solvents (DESs) was addressed. Of the single-component plasticizers, glycerol was found to be the most efficient by increasing the elongation at break of the composite by 53%. A similar, or even better, increase in elongation at break (up to 81%) was obtained with DESs based on choline chloride and glycerol, glucose or urea. Based on the dynamic mechanical analysis at varying humidity, the performance of plasticizers was strongly attributed to the humidity. The DES based on tetrabutylammonium bromide and propylene carbonate was most efficient at providing thermoformability to the composite by lowering the thermal softening temperature. Based on the obtained results, DESs are a highly promising plasticizers for the cellulose-based biocomposites with similar or even better plasticizing effect compared to conventional plasticizer. In addition, DESs can be used to improve the thermoformability of biocomposites, by lowering the thermal softening temperature.

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Series: Industrial crops and products
ISSN: 0926-6690
ISSN-E: 1872-633X
ISSN-L: 0926-6690
Volume: 122
Pages: 513 - 521
DOI: 10.1016/j.indcrop.2018.06.039
OADOI: https://oadoi.org/10.1016/j.indcrop.2018.06.039
Type of Publication: A1 Journal article – refereed
Field of Science: 216 Materials engineering
Subjects:
Funding: The funding from the Finnish Funding Agency for Technology and Innovation (TEKES) is acknowledged. J.A.S. would like to thank the Kone Foundation for its financial support.
Copyright information: © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
  https://creativecommons.org/licenses/by-nc-nd/4.0/