Studies on topochemical modification of cellulosic fibres - Part 3. The effect of carboxymethyl cellulose attachment on wet-strength development by alkaline-curing polyamide-amine epichlorohydrin resins

Janne Laine, T Lindstrom, GG Nordmark, G Risinger

    Research output: Contribution to journalArticleScientificpeer-review

    Abstract

    An ECF-bleached softwood kraft pulp was placed in contact with a solution of a commercially available carboxymethyl cellulose (CMC) at 80degreesC in 0.05 M CaCl2 for two hours. Under such conditions, part of the CMC becomes irreversibly attached to the surface of fibres. The CMC-modified fibres were then placed in contact with a polyamide-amine epichlorohydrin resin (PAAE), made into paper sheets and cured in an oven. The results show that there is a very strong synergistic action between fibres treated in this way and the PAAE-resin with regard to the wet-strengthening effect of the resin. The synergistic effects were attributed both to the increased amount of PAAE-resin adsorbed by the CMC attachment and to the chemical reaction between the resin and the attached CMC.

    Original languageEnglish
    Pages (from-to)57-60
    Number of pages4
    JournalNordic Pulp & Paper Research Journal
    Volume17
    Issue number1
    DOIs
    Publication statusPublished - 2002
    MoE publication typeA1 Journal article-refereed

    Keywords

    • surface modification
    • cellulosic fibres
    • carboxymethyl cellulose (CMC)
    • wet strength resin
    • adsorption
    • reactivity
    • wet strength

    Fingerprint

    Dive into the research topics of 'Studies on topochemical modification of cellulosic fibres - Part 3. The effect of carboxymethyl cellulose attachment on wet-strength development by alkaline-curing polyamide-amine epichlorohydrin resins'. Together they form a unique fingerprint.

    Cite this