Phosphorylated nanofibrillated cellulose: production and properties
2016 (English)In: Nordic Pulp & Paper Research Journal, ISSN 0283-2631, E-ISSN 2000-0669, Vol. 31, no 1, 20-29 p.Article in journal (Refereed) PublishedText
Phosphate functionalized nanofibrillated cellulose (NFC) was produced through an industrially attractive process, by reacting wood pulp with a phosphate containing salt, followed by mechanical delamination through microfluidization. The degrees of delamination of the phosphorylated NFCs (judged by among others AFM-imaging, rheological studies and tensile strength measurements on NFC films) were found to improve with increasing functionalization of the pulp and number of microfluidization-passes. The NFC systems were found to display similar characteristics as other well-known NFC systems. Interestingly, however, the sufficiently delaminated phosphorylated NFCs exhibited significantly lower oxygen permeability values (at RH 50%) than the published values of several well-known highly delaminated NFC systems. The potential application of the phosphorylated NFC in packaging applications can hence be envisaged.
Place, publisher, year, edition, pages
AB Svensk Papperstidning , 2016. Vol. 31, no 1, 20-29 p.
Nanofibrillated cellulose (NFC), Phosphorylation, Rheology, Tensile strength properties, NMR, AFM-imaging, Barrier properties
IdentifiersURN: urn:nbn:se:kth:diva-184985ISI: 000371253400003ScopusID: 2-s2.0-84961595235OAI: oai:DiVA.org:kth-184985DiVA: diva2:917781
FunderKnut and Alice Wallenberg Foundation
QC 201604072016-04-072016-04-072016-04-19Bibliographically approved