A novel nano cellulose preparation method and size fraction by cross flow ultra- filtration
2012 (English)In: Current organic chemistry, ISSN 1385-2728, Vol. 16, no 16, 1871-1875 p.Article in journal (Refereed) Published
A novel energy-efficient method called nanopulping (patent pending) to produce nanocellulose from chemical pulp, and a novel cross-flow ultra-filtration method to separate nanofibrils fractions of different size were applied in this study. Pretreatment with endoglucanase or 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) oxidation seems to enhance the nanopulping process. Results were evaluated with atomic force microscope and ultrafiltration. The nanopulping produced a relatively inhomogeneous material with larger particles/ fibers in addition to nanofibers. However, by ultrafiltration of the material it was possible to obtain more homogeneous material in different dimensions with methods industrially acceptable.
Place, publisher, year, edition, pages
2012. Vol. 16, no 16, 1871-1875 p.
Cross flow ultra-filtration, Endoglucanase pretreatment, Microfibrillated cellulose, Nanocellulose, Nanopulping, TEMPO pretreatment
IdentifiersURN: urn:nbn:se:kth:diva-101522DOI: 10.2174/138527212802651197ISI: 000307867800006ScopusID: 2-s2.0-84864563327OAI: oai:DiVA.org:kth-101522DiVA: diva2:549354
QC 201209042012-09-042012-08-302014-04-04Bibliographically approved