The effect of mixing and consistency on cellulose cationization

Pia Willberg-Keyriläinen (Corresponding Author), Pauliina Pitkänen, Janne Hulkko, Martta Asikainen, Harri Setälä

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Traditional chemical modifications of cellulose are usually done at low or medium consistencies. Processing at high solids content is expected to provide a leap forward in reduction of manufacturing costs such as minimization of chemical use, energy consumption and decreasing processing equipment size, while at the same time increasing reaction efficiency. In this research, high consistency modifications of cellulose were studied through cationization reaction. Four different laboratory scale high consistency reactors were tested and the effect of mixing on fiber properties was analyzed. All reactors decreased cellulose fiber length and no significant difference between cellulose starting consistencies and mixing time on fiber properties were found. The cationization reaction efficiency increased as the cellulose starting consistency increased in all of the tested reactors. In addition, mercerization of pulp as pretreatment, significantly increased reaction efficiency.

Original languageEnglish
Article numbere01349
Pages (from-to)e01349
JournalHeliyon
Volume5
Issue number3
DOIs
Publication statusPublished - 18 Mar 2019
MoE publication typeNot Eligible

Fingerprint

cellulose
mercerization
processing equipment
cellulosic fibers
energy use and consumption
pulp
manufacturing
pretreatment

Keywords

  • Natural product chemistry
  • Organic chemistry

Cite this

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The effect of mixing and consistency on cellulose cationization. / Willberg-Keyriläinen, Pia (Corresponding Author); Pitkänen, Pauliina; Hulkko, Janne; Asikainen, Martta; Setälä, Harri.

In: Heliyon, Vol. 5, No. 3, e01349, 18.03.2019, p. e01349.

Research output: Contribution to journalArticleScientificpeer-review

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T1 - The effect of mixing and consistency on cellulose cationization

AU - Willberg-Keyriläinen, Pia

AU - Pitkänen, Pauliina

AU - Hulkko, Janne

AU - Asikainen, Martta

AU - Setälä, Harri

PY - 2019/3/18

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KW - Natural product chemistry

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