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Polyelectrolyte complexes for surface modification of wood fibres II: Influence of complexes on wet and dry strength of paper
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences. (FSCN – Fibre Science and Communication Network)
KTH, Fiber and Polymer Technology Department, Fibre Technology, S-100 44, Stockholm, Sweden.
Responsible organisation
2003 (English)In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, ISSN 0927-7757, E-ISSN 1873-4359, Vol. 218, no 1-3, 137-149 p.Article in journal (Refereed) Published
Abstract [en]

The current paper presents a way of enhancing paper strength by the use of polyelectrolyte complexes (PEC) of cationic poly (amide, amine) epichlorohydrin condensate (PAE) and anionic carboxymethylcellulose (CMC). In this study the complexes were pre-formed in different mixing ratios, but with an overall anionic charge. The complexes were characterized by means of size, charge, and adsorption properties both to fibres and to model silica surfaces. Finally the PEC�s were applied as strength additive in paper sheet preparation. The main findings are that by changing polymer weight-ratios when preparing the complexes the charge and the amount adsorbed could be altered. Addition of the complexes to the fibres before sheet preparation led to a significant increase in strength of the paper, compared to sheets prepared with only the PAE. The strength improvement depended upon the mixing ratio and a maximum in dry strength was found for complexes where the anionic charge of the CMC had been neutralized to 60%. Paper strength; Polyelectrolyte Complexes; PAE; CMC; Strength additive

Place, publisher, year, edition, pages
2003. Vol. 218, no 1-3, 137-149 p.
Keyword [en]
Paper strength, Polyelectrolyte Complexes, PAE, CMC, Strength additive
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:miun:diva-5141DOI: 10.1016/S0927-7757(02)00588-5ISI: 000183508500012Scopus ID: 2-s2.0-0037566548Local ID: 1396OAI: oai:DiVA.org:miun-5141DiVA: diva2:30173
Available from: 2008-09-30 Created: 2009-06-08 Last updated: 2016-10-24Bibliographically approved

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CiteExportLink to record
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Cite
Citation style
  • apa
  • ieee
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  • Other style
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