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The effect of Fenton chemistry on the properties of microfibrillated cellulose
AkzoNobel Pulp and Performance Chemicals, 445 80 Bohus, Sweden.
AkzoNobel Pulp and Performance Chemicals, 445 80 Bohus, Sweden.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering. AkzoNobel Pulp and Performance Chemicals, 445 80 Bohus, Sweden.
Department of Engineering and Chemical Sciences, Karlstad University, 651 88 Karlstad, Sweden .
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2014 (English)In: Cellulose (London), ISSN 0969-0239, E-ISSN 1572-882X, Vol. 21, no 3, p. 1489-1503Article in journal (Refereed) Published
Abstract [en]

A fully bleached birch kraft pulp was treated with acidic hydrogen peroxide in the presence of ferrous ions (Fenton's reagent) and thereafter treated mechanically in a colloid mill to produce a product containing microfibrillated cellulose (MFC). The produced MFC products were chemically and morphologically characterized and compared with MFC products produced without pretreatment as well as with enzymatic hydrolysis. Fenton treatment resulted in an increase in total charge and number of carbonyl groups while the intrinsic viscosity decreased. The Fenton treated pulps were easier to process mechanically i.e. they reached a higher specific surface area at a given mechanical treatment time and the MFC produced had a stable water-fibre suspension for at least 8 weeks compared to enzymatic pretreated pulps and pulps not subjected to any pretreatment. © 2014 Springer Science+Business Media Dordrecht.

Place, publisher, year, edition, pages
2014. Vol. 21, no 3, p. 1489-1503
Keywords [en]
Carbohydrate composition, Carbonyl groups, Enzymatic hydrolysis, Fenton chemistry, Microfibrillated cellulose, Suspension stability, Total and surface charge
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:miun:diva-22104DOI: 10.1007/s10570-014-0243-1ISI: 000336322800036Scopus ID: 2-s2.0-84901035117OAI: oai:DiVA.org:miun-22104DiVA, id: diva2:722565
Note

CODEN: CELLE

Available from: 2014-06-09 Created: 2014-06-05 Last updated: 2017-12-05Bibliographically approved

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Paulsson, Magnus

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