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Bioinspired composites from cross-linked galactoglucomannan and microfibrillated cellulose: Thermal, mechanical and oxygen barrier properties.

Oinonen, Petri; Krawczyk, Holger LU ; Ek, Monica; Henriksson, Gunnar and Moriana, Rosana (2016) In Carbohydrate Polymers 136. p.146-153
Abstract
In this study, new wood-inspired films were developed from microfibrillated cellulose and galactoglucomannan-lignin networks isolated from chemothermomechanical pulping side streams and cross-linked using laccase enzymes. To the best of our knowledge, this is the first time that cross-linked galactoglucomannan-lignin networks have been used for the potential development of composite films inspired by woody-cell wall formation. Their capability as polymeric matrices was assessed based on thermal, structural, mechanical and oxygen permeability analyses. The addition of different amounts of microfibrillated cellulose as a reinforcing agent and glycerol as a plasticizer on the film performances was evaluated. In general, an increase in... (More)
In this study, new wood-inspired films were developed from microfibrillated cellulose and galactoglucomannan-lignin networks isolated from chemothermomechanical pulping side streams and cross-linked using laccase enzymes. To the best of our knowledge, this is the first time that cross-linked galactoglucomannan-lignin networks have been used for the potential development of composite films inspired by woody-cell wall formation. Their capability as polymeric matrices was assessed based on thermal, structural, mechanical and oxygen permeability analyses. The addition of different amounts of microfibrillated cellulose as a reinforcing agent and glycerol as a plasticizer on the film performances was evaluated. In general, an increase in microfibrillated cellulose resulted in a film with better thermal, mechanical and oxygen barrier performance. However, the presence of glycerol decreased the thermal stability, stiffness and oxygen barrier properties of the films but improved their elongation. Therefore, depending on the application, the film properties can be tailored by adjusting the amounts of reinforcing agent and plasticizer in the film formulation. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Carbohydrate Polymers
volume
136
pages
146 - 153
publisher
Elsevier
external identifiers
  • pmid:26572340
  • wos:000365972000019
  • scopus:84942156351
ISSN
0144-8617
DOI
10.1016/j.carbpol.2015.09.038
language
English
LU publication?
yes
id
e63481cd-4fd4-4f82-bede-76e59385b35b (old id 8235425)
date added to LUP
2015-12-08 10:12:43
date last changed
2017-07-30 03:19:07
@article{e63481cd-4fd4-4f82-bede-76e59385b35b,
  abstract     = {In this study, new wood-inspired films were developed from microfibrillated cellulose and galactoglucomannan-lignin networks isolated from chemothermomechanical pulping side streams and cross-linked using laccase enzymes. To the best of our knowledge, this is the first time that cross-linked galactoglucomannan-lignin networks have been used for the potential development of composite films inspired by woody-cell wall formation. Their capability as polymeric matrices was assessed based on thermal, structural, mechanical and oxygen permeability analyses. The addition of different amounts of microfibrillated cellulose as a reinforcing agent and glycerol as a plasticizer on the film performances was evaluated. In general, an increase in microfibrillated cellulose resulted in a film with better thermal, mechanical and oxygen barrier performance. However, the presence of glycerol decreased the thermal stability, stiffness and oxygen barrier properties of the films but improved their elongation. Therefore, depending on the application, the film properties can be tailored by adjusting the amounts of reinforcing agent and plasticizer in the film formulation.},
  author       = {Oinonen, Petri and Krawczyk, Holger and Ek, Monica and Henriksson, Gunnar and Moriana, Rosana},
  issn         = {0144-8617},
  language     = {eng},
  pages        = {146--153},
  publisher    = {Elsevier},
  series       = {Carbohydrate Polymers},
  title        = {Bioinspired composites from cross-linked galactoglucomannan and microfibrillated cellulose: Thermal, mechanical and oxygen barrier properties.},
  url          = {http://dx.doi.org/10.1016/j.carbpol.2015.09.038},
  volume       = {136},
  year         = {2016},
}