Återgå till huvudnavigering Återgå till sök Gå direkt till huvudinnehållet

Differences between Scots pine and Norway spruce TMP pulps as revealed bt the HCL method

    Publikation: Kapitel i bok/rapport/konferenshandlingKonferensartikel i proceedingsPeer review

    Sammanfattning

    The HCl method was used to compare pine and spruce TMP pulps. Delignification gave much stronger fibre cleavage by HCl (3.5-5x for Stage 3) indicating that lignin and hemicelluloses protect the fibres from acid attack. Cleavage per fibre for TMP was similar as kraft pulps, while spruce TMP was more sensitive to HCl than pine TMP. A more robust secondary wall and a lower number of dislocations and weak points may be related to the higher refining energy needed for pine TMP pulps
    OriginalspråkEngelska
    Titel på värdpublikationProceedings of International Mecahnical Pulping Conference, Södra Berget, Sundsvall
    FörlagSPCI, The Swedish Association of Pulp and Paper Engineers
    Sidor322-324
    Antal sidor3
    StatusPublicerad - 2009

    Publikationsserier

    SerieSPCI meddelande / The Swedish Association of Pulp and Paper Engineers
    ISSN0280-6800

    Nyckelord

    • HCL method
    • Norway spruce
    • Scots pine
    • Thermomecahnical pulp
    • dislocations
    • refining

    Citera det här