Investigation of the Adsorption Behavior of Jet-Cooked Cationic Starches on Pulp Fibers

Esther Ferstl; Martin Gabriel; Florian Gomernik; Stefanie Monika Müller; Julian Selinger; Ferula Thaler; Wolfgang Bauer; Frank Uhlig; Stefan Spirk; Angela Chemelli

doi:10.3390/polym12102249

Polymers (Sep 2020)

Investigation of the Adsorption Behavior of Jet-Cooked Cationic Starches on Pulp Fibers

Esther Ferstl,
Martin Gabriel,
Florian Gomernik,
Stefanie Monika Müller,
Julian Selinger,
Ferula Thaler,
Wolfgang Bauer,
Frank Uhlig,
Stefan Spirk,
Angela Chemelli

Affiliations

Esther Ferstl: Institute of Inorganic Chemistry, Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
Martin Gabriel: Institute of Bioproducts and Paper Technology, Graz University of Technology, Inffeldgasse 23, 8010 Graz, Austria
Florian Gomernik: Institute of Bioproducts and Paper Technology, Graz University of Technology, Inffeldgasse 23, 8010 Graz, Austria
Stefanie Monika Müller: Institute of Bioproducts and Paper Technology, Graz University of Technology, Inffeldgasse 23, 8010 Graz, Austria
Julian Selinger: Institute of Bioproducts and Paper Technology, Graz University of Technology, Inffeldgasse 23, 8010 Graz, Austria
Ferula Thaler: Institute of Inorganic Chemistry, Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
Wolfgang Bauer: Institute of Bioproducts and Paper Technology, Graz University of Technology, Inffeldgasse 23, 8010 Graz, Austria
Frank Uhlig: Institute of Inorganic Chemistry, Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
Stefan Spirk: Institute of Bioproducts and Paper Technology, Graz University of Technology, Inffeldgasse 23, 8010 Graz, Austria
Angela Chemelli: Institute of Inorganic Chemistry, Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria

DOI: https://doi.org/10.3390/polym12102249
Journal volume & issue: Vol. 12, no. 10
p. 2249

Abstract

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The optimization of the thermal treatment of cationic starch in the paper industry offers the opportunity to reduce the energy consumption of this process. Four different industrially relevant cationic starches, varying in source, cationization method and degree of substitution were treated by a steam-jet cooking procedure, comparable to industrially employed starch cooking processes. The influence of the starch properties and cooking parameters on the adsorption behavior of the starches on cellulosic pulp was investigated. The adsorbed amount was affected by the cooking temperature and the type of starch. For some starch grades, a cooking temperature of 115 °C can be employed to achieve sufficient starch retention on the pulp fibers. The energy consumption could further be reduced by cooking at higher starch concentrations without loss of adsorption efficiency.

Published in Polymers

ISSN: 2073-4360 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry: Organic chemistry
Website: http://www.mdpi.com/journal/polymers/

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