The use of fluorescence microscopy and image analysis to characterize the porous structure in micro fibrillar cellulose gel - Part I: Brownian motion
2013 (English)In: Nordic Pulp & Paper Research Journal, ISSN 0283-2631, E-ISSN 2000-0669, Vol. 28, no 2, 190-197 p.Article in journal (Refereed) Published
The porous structure of a micro fibrilar cellulose, MFC, gel was studied by fluorescence microscopy and image analysis. The Brownian motion of fluorescent labelled carboxylated latex spheres, probes, was investigated at both high, 0.1-5 wt%, and low, 0-20 ppm, concentrations of MFC. The developed tracking program provides trajectories for probes. The trajectories can be studied according to either the individual approach or the ensemble approach to give complementary information regarding the fibrilar system. The Brownian motion can be used in the range 0 to 1.0 wt% MFC and the percentage of idle probes can be used when the concentrations exceeds 1.0 wt% MFC. The Brownian motion was found to be pH dependent both for the low and the high concentration regimes.
Place, publisher, year, edition, pages
Mittuniversitetet , 2013. Vol. 28, no 2, 190-197 p.
MFC, Micro fibrillar cellulose, Wet state conditions, Characterization, Tracking, Brownian motion, Fluorescence microscopy
Chemical Process Engineering
Research subject Chemical Engineering
IdentifiersURN: urn:nbn:se:kau:diva-38670DOI: 10.3183/NPPRJ-2013-28-02-p190-197ISI: 000321291900003OAI: oai:DiVA.org:kau-38670DiVA: diva2:873358