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Development of Free-Standing Interference Films for Paper and Packaging Applications
Linköping University, The Department of Physics, Chemistry and Biology.
2008 (English)Independent thesis Basic level (professional degree), 20 points / 30 hpStudent thesis
Abstract [en]

The newfound capability of creating moisture sensitive interference multilayered thin films (MLTFs) comprising microfibrillated cellulose and polymers has not previously been possible to implement on surfaces other than silicon wafer strips. Being able to incorporate interference MLTFs on fibre-based materials would introduce the possibility for new applications within authentication, sensing and customer attraction for the paper and packaging industry. By using trichloro (1H, 1H, 2H, 2H-perfluorooctyl) silane we were able to hydrophobically modify silicon substrates, enabling interference MLTF lift-off and thus the creation of free-standing MLTFs of approximately 400 nm thickness. Contact dried MLTFs approximately 250 nm thick, were successfully transferred to copy- and filter paper as well as to cellulose-based dialysis membranes. We can also report on the successful synthesis of interference MLTFs directly on a fibre composite material and on aluminium. Initial tests of a method to quantify the pull-off conditions of the MLTFs from the fluorinated surfaces using the Micro Adhesion Measurement Apparatus showed promising results.

Place, publisher, year, edition, pages
Institutionen för fysik, kemi och biologi , 2008. , 75 p.
Keyword [en]
layer-by-layer, interference thin film, free-standing, moisture sensor, polyelectrolyte, surface self-assembly, silanization
National Category
Other Engineering and Technologies not elsewhere specified
Identifiers
URN: urn:nbn:se:liu:diva-11398ISRN: LITH-IFM-EX--08/1920—SEOAI: oai:DiVA.org:liu-11398DiVA: diva2:17803
Presentation
2008-03-03, Planck, Fysikhuset, Linköpings Universitet, Linköping (Campus Valla), 10:00
Uppsok
teknik
Supervisors
Examiners
Available from: 2008-05-08 Created: 2008-05-08

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • 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