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A novel nano cellulose preparation method and size fraction by cross flow ultra- filtration
KTH Royal Institute of Technology, Sweden.
RISE, Innventia.
KTH Royal Institute of Technology, Sweden.
KTH Royal Institute of Technology, Sweden.
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2012 (English)In: Current organic chemistry, ISSN 1385-2728, E-ISSN 1875-5348, no 16, p. 1871-1875Article in journal (Refereed) Published
Abstract [en]

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. no 16, p. 1871-1875
Keywords [en]
Cross flow ultra-filtration, Endoglucanase pretreatment, Microfibrillated cellulose, Nanocellulose, Nanopulping, TEMPO pretreatment
National Category
Nano Technology Organic Chemistry
Identifiers
URN: urn:nbn:se:ri:diva-9738DOI: 10.2174/138527212802651197Scopus ID: 2-s2.0-84864563327OAI: oai:DiVA.org:ri-9738DiVA, id: diva2:968514
Available from: 2016-09-12 Created: 2016-09-12 Last updated: 2021-01-12Bibliographically approved

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