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Multilayer assembly...
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Ankerfors, MikaelBillerudKorsnäs AB, Sweden
(author)
Multilayer assembly onto pulp fibres using oppositely charged microfibrillated celluloses, starches, and wetstrength resins : Effect on mechanical properties of CTMP-sheets
- Article/chapterEnglish2016
Publisher, publication year, extent ...
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2018-07-19
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Walter de Gruyter GmbH,2016
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:ri-12629
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https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-12629URI
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https://doi.org/10.3183/npprj-2016-31-01-p135-141DOI
Supplementary language notes
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Language:English
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Summary in:English
Part of subdatabase
Classification
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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The effects of multilayering of microfibrillar cellulose (MFC) onto a chemi-thermomechanical pulp (CTMP), from which the fines material had been removed, were investigated with regard to the mechanical properties of hand-sheets. In one series of experiments, the CTMP was multilayered with cationic MFC/anionic MFC (C-MFC/A-MFC) at various addition levels and sheets made in a conventional sheet former, pressed, and dried at room temperature. This experimental series was complemented with a second series, where sheets were made in a Rapid Köthen sheet former. In a third series of experiments, the CTMP was multilayered using a cationic polyamideamine epichlorohydrine resin (PAE) and an AMFC. Sheets were formed using the Rapid Köthen sheet former. Finally, in a fourth series of experiments, the MFC multilayering experiments were compared with multilayering experiments using cationic starch/anionic starch (C-starch/A-Starch). MFC-multilayering (C-MFC/A-MFC) gave inferior strength gain at a low addition level compared to starch multilayering, but (compared on a weight basis) the strength seemed to level off using starches at high addition levels, whereas there were a continuous increase in strength using MFC multilayering. Multilayering using PAE/A-MFC was found to give a higher strength gain than both C-MFC/A-MFC and C-starch/A-starch multilayering. Sheet density was slightly affected (<14%) by the multilayering techniques used in these experiments.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
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Lindström, TomRISE,Innventia(Swepub:ri)TomLi@ri.se
(author)
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Glad Nordmark, GunborgRISE,Innventia
(author)
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BillerudKorsnäs AB, SwedenInnventia
(creator_code:org_t)
Related titles
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In:Nordic Pulp & Paper Research Journal: Walter de Gruyter GmbH31:1, s. 135-1410283-26312000-0669
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