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The effect of Fenton chemistry on the properties of microfibrillated cellulose
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- Hellström, Pia, 1960- (author)
- Karlstads universitet,Institutionen för ingenjörs- och kemivetenskaper (from 2013),AkzoNobel Pulp & Performance Chem, S-44580 Bohus, Sweden.,AkzoNobel Pulp and Performance Chemicals, 445 80 Bohus, Sweden
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- Heijnesson-Hulten, Anette (author)
- AkzoNobel Pulp & Performance Chem, S-44580 Bohus, Sweden.,AkzoNobel Pulp and Performance Chemicals, 445 80 Bohus, Sweden
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- Paulsson, Magnus (author)
- Mittuniversitetet,Avdelningen för kemiteknik,AkzoNobel Pulp and Performance Chemicals, 445 80 Bohus, Sweden,AkzoNobel Pulp & Performance Chem, S-44580 Bohus, Sweden.;Mid Sweden Univ, FSCN, S-85170 Sundsvall, Sweden.
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- (creator_code:org_t)
- 2014-04-10
- 2014
- English.
- In: Cellulose. - : Springer. - 0969-0239 .- 1572-882X. ; 21:3, s. 1489-1503
- Journal article (peer-reviewed)
Abstract
Subject headings
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- 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.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering (hsv//eng)
Keyword
- Microfibrillated cellulose
- Fenton chemistry
- Enzymatic hydrolysis
- Carbonyl groups
- Carbohydrate composition
- Total and surface charge
- Suspension stability
- Kemiteknik
- Chemical Engineering
Publication and Content Type
- ref (subject category)
- art (subject category)
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