Cationization of Lignocellulose as a Means to Enhance Paper Strength Properties

Melanie Mayr, Nora Odabas, Rene Eckhart, Ute Henniges, Wolfgang Bauer

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Chemical modification by attaching functional groups to lignocellulosic pulp fibers might be a strategy for improving the pulp, and thereby, paper properties. Several studies have described positive effects on paper strength properties for handsheets prepared from cationic-modified pulp or pulp fractions. This study addressed whether these effects are related to the cationic groups, e.g., by increasing electrostatic attraction and thus paper strength, or rather side effects of the chemical modification process, e.g., fiber flexibilization. To eliminate or at least minimize these side effects, only the fines fraction, which was already highly flexible, was cationized. While the addition of cationized fines affected various pulp and paper properties, most notably drainage time, no difference in strength properties was observed when comparing the addition of cationic or unmodified fines to different pulps or fractions thereof.
Original languageEnglish
Pages (from-to)9338-9347
Number of pages10
JournalBioResources
Volume12
Issue number4
DOIs
Publication statusPublished - 25 Oct 2017

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Keywords

  • Chemical modification
  • Cationization
  • Pulp
  • Fines
  • Paper properties

Fields of Expertise

  • Advanced Materials Science

Treatment code (Nähere Zuordnung)

  • Basic - Fundamental (Grundlagenforschung)

Cooperations

  • NAWI Graz

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