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
Aerogels from nanofibrillated cellulose with tunable oleophobicity
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Fibre Technology.
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Biocomposites.
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Fibre Technology.ORCID iD: 0000-0001-8622-0386
2010 (English)In: SOFT MATTER, ISSN 1744-683X, Vol. 6, no 14, 3298-3305 p.Article in journal (Refereed) Published
Abstract [en]

The formation of structured porous aerogels of nanofibrillated cellulose (NFC) by freeze-drying has been demonstrated. The aerogels have a high porosity, as shown by FE-SEM and nitrogen adsorption/desorption measurements, and a very low density ( < 0.03 g cm(-3)). The density and surface texture of the aerogels can be tuned by selecting the concentration of the NFC dispersions before freeze-drying. Chemical vapor deposition (CVD) of 1H, 1H, 2H, 2H-perfluorodecyltrichlorosilane (PFOTS) was used to uniformly coat the aerogel to tune their wetting properties towards non-polar liquids. An XPS analysis of the chemical composition of the PFOTS-modified aerogels demonstrated the reproducibility of the PFOTS-coating and the high atomic fluorine concentration (ca. 51%) in the surfaces. The modified aerogels formed a robust composite interface with high apparent contact angles (theta* >> 90 degrees) for castor oil (gamma(1v) = 35.8 mN m(-1)) and hexadecane (gamma(1v) = 27.5 mN m(-1)).

Place, publisher, year, edition, pages
2010. Vol. 6, no 14, 3298-3305 p.
Keyword [en]
COHERENT EXPANDED AEROGELS, NEUTRON FIBER DIFFRACTION, HYDROGEN-BONDING SYSTEM, SUPER-WATER-REPELLENT, SYNCHROTRON X-RAY, ORGANIC AEROGELS, MICROFIBRILLATED CELLULOSE, NATIVE CELLULOSE, SUPERHYDROPHOBIC SURFACE, HYDROPHOBIC SURFACES
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-29502DOI: 10.1039/c001939aISI: 000279566800026Scopus ID: 2-s2.0-77954584209OAI: oai:DiVA.org:kth-29502DiVA: diva2:394562
Note
QC 20110203Available from: 2011-02-03 Created: 2011-02-02 Last updated: 2011-02-03Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Authority records BETA

Wågberg, Lars

Search in DiVA

By author/editor
Aulin, ChristianNetrval, JuliaWågberg, Lars
By organisation
Fibre TechnologyBiocomposites
Chemical Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 165 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