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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.
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Avdelningen för kemiteknik. 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 (Engelska)Ingår i: Cellulose (London), ISSN 0969-0239, E-ISSN 1572-882X, Vol. 21, nr 3, s. 1489-1503Artikel i tidskrift (Refereegranskat) 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.

Ort, förlag, år, upplaga, sidor
2014. Vol. 21, nr 3, s. 1489-1503
Nyckelord [en]
Carbohydrate composition, Carbonyl groups, Enzymatic hydrolysis, Fenton chemistry, Microfibrillated cellulose, Suspension stability, Total and surface charge
Nationell ämneskategori
Kemiteknik
Identifikatorer
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
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CODEN: CELLE

Tillgänglig från: 2014-06-09 Skapad: 2014-06-05 Senast uppdaterad: 2017-12-05Bibliografiskt granskad

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