Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Softwood-based sponge gels
University of Helsinki, Finland.
University of Helsinki, Finland.
University of Helsinki, Finland.
University of Castilla-La Mancha, Spain.
Show others and affiliations
2016 (English)In: Cellulose (London), ISSN 0969-0239, E-ISSN 1572-882X, Vol. 23, no 5, p. 3221-3238Article in journal (Refereed) Published
Abstract [en]

Crosslinking-aided gelation was utilized to prepare hydrogels from softwood polysaccharides, with spruce galactoglucomannans (GGM)—a group of largely unexploited hemicelluloses—as the main component, aiming at conversion into sponge-like aerogels. Cellulose nanofibrils were used for the formation of a reinforcing network, which was further crosslinked together with a GGM matrix by ammonium zirconium carbonate, an inorganic salt that is regarded as safe for use in food packaging. The hydrogels were freeze-dried into stiff, low-density aerogels with 98 % of their volume composed of air-filled pores. When immersed in water, the aerogels absorbed water up to 37 times their initial weight, demonstrating elasticity and repeatable and reversible sponge capacity. The developed concept reassembles the wood polysaccharides in a new way, creating interesting possibilities for utilizing the abundant “green gold,” GGM. The obtained biobased materials could find application potential, for example, in the field of food packaging and could contribute in the reduction of the usage of petroleum-based plastics in the future.

Place, publisher, year, edition, pages
2016. Vol. 23, no 5, p. 3221-3238
Keywords [en]
Aerogel, Ammonium zirconium carbonate, Chemical crosslinking, Galactoglucomannan, Hydrogel
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-12620DOI: 10.1007/s10570-016-1010-2Scopus ID: 2-s2.0-84978873807OAI: oai:DiVA.org:ri-12620DiVA, id: diva2:971104
Available from: 2016-09-15 Created: 2016-09-15 Last updated: 2019-06-18Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records BETA

Salmen, Lennart

Search in DiVA

By author/editor
Salmen, Lennart
By organisation
Innventia
In the same journal
Cellulose (London)
Materials Engineering

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 117 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
v. 2.35.7