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Scalable Improvement of the Strength Properties of Chemimechanical Pulp Fibers by Eco-Friendly Catalysis
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences. (FORIC)
Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering. (FORIC)
Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering. (FORIC)
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences. (FORIC)
2018 (English)In: IMPC 2018, Trondheim, Norway, 2018Conference paper, Published paper (Refereed)
Abstract [en]

The sustainable improvement of the strength properties of chemimechanical pulp by eco-friendlycatalysis is disclosed. Significant research activities have been performed on the use of cationic starchand polyelectrolyte complexes for improving the strength properties of cellulose-based materials. Herewe apply an eco-friendly strategy based on catalysis for significantly improving the strength propertiesof sheets made from chemimechanical pulp (CTMP) and bleeched sulphite pulp (BSP) using sustainablepolyelectrolyte complexes as the strength additives and organocatalysis. This surface engineeringstrategy significantly increased the strength properties of the assembled sheets (up to 100% in the caseof Z-strength). We also developed a catalytic selective colour marking of the cationic potato starch (CS)and carboxymethylcellulose (CMC) in order to elucidated how the specific strength additives aredistributed on the sheets. It revealed that the strength additives were more evenly distributed on thesheets made from CTMP as compared to BSP sheets. This is most likely attributed to the presence oflignin in the former lignocellulosic material. It also contributes to the increase in strength (up to 100%,Z-strength) for the CTMP derived sheets. The selective colour marking method also revealed that morestrength additives had been bound to the pulps in the presence of the catalyst.

Place, publisher, year, edition, pages
Trondheim, Norway, 2018.
National Category
Paper, Pulp and Fiber Technology
Identifiers
URN: urn:nbn:se:miun:diva-34682OAI: oai:DiVA.org:miun-34682DiVA, id: diva2:1254161
Conference
International Mechanical Pulping Conference (IMPC) 2018, May 27-30, 2018, Trondheim, Norway
Available from: 2018-10-08 Created: 2018-10-08 Last updated: 2018-10-08Bibliographically approved

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Alimohammadzadeh, RanaOsong, Sinke H.Dahlström, ChristinaCordova, Armando

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Alimohammadzadeh, RanaOsong, Sinke H.Dahlström, ChristinaCordova, Armando
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Department of Natural SciencesDepartment of Chemical Engineering
Paper, Pulp and Fiber Technology

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CiteExportLink to record
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