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Industrially Relevant In-situ Production Of High Yield Pulp Based Nanocellulose Materials Optimized To Improve Strength In Packaging And Printing Papers: A Comparison Between CMC And MFC As The Anionic Component In Layer-by-Layer Technology
Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering. MoRe Research Örnsköldsvik AB. (FORIC)
MoRe Research Örnsköldsvik AB.
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)
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2018 (English)In: IMPC 2018, Trondheim, Norway, 2018Conference paper, Published paper (Refereed)
Abstract [en]

A key issue in papermaking is to understand how to improve strength without losing other important quality measures, like paper bulk. This must of course also be done in a cost efficient way. The trials described in this paper show some different aspects related to the replacement of the expensive anionic component CMC (carboxymethylcellulose) often used in Layer-by-Layer technology together with cationic starch in order to improve strength properties as z-strength and tensile strength of typical chemi-thermomechanical pulp (CTMP) often used as dominating component in industrial scale paper board production. The replacement for CMC investigated here is a MFC (micro-fibrillated cellulose) as the anionic component and paper sheets has been produced on an experimental paper machine at MoRe Research AB. This MFC is a commercially available product and it has not been treated in ways of increasing charge density. The trials were performed at a small pilot scale experimental paper machine (XPM) at MoRe Research in Örnsköldsvik, Sweden. This XPM is equipped with a unique setup to perform Layer-by-Layer-tests under very well controlled conditions. The general conclusion is that it could, with further developments, be feasible to replace CMC with MFC to improve bonding in typical CTMP based paper sheets.

Place, publisher, year, edition, pages
Trondheim, Norway, 2018.
Keywords [en]
cmc, ctmp, layer-by-layer, mechanical pulp, mfc, strength additive
National Category
Paper, Pulp and Fiber Technology
Identifiers
URN: urn:nbn:se:miun:diva-34677OAI: oai:DiVA.org:miun-34677DiVA, id: diva2:1254361
Conference
International Mechanical Pulping Conference (IMPC) 2018, May 27-30, 2018, Trondheim, Norway
Available from: 2018-10-09 Created: 2018-10-09 Last updated: 2018-10-09Bibliographically approved

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Nordin, TommyNorgren, SvenPettersson, GunillaEngstrand, Per

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