LigniOx lignins: High performance concrete plasticizers and versatile dispersants

Anna Katariina Kalliola, Tapio Vehmas, Tiina Liitiä, Tarja Tamminen

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    Abstract

    A simple and economic alkali-O2 oxidation (LigniOx) process has been developed for the production of concrete plasticizers and versatile dispersants from technical lignins. Previously, soda and kraft lignin based LigniOx lignins have been shown to have great potential to serve the traditional lignosulfonate markets, and to compete even with more expensive synthetic products. Here, the latest results of successful use of kraft, organosolv and hydrolysis lignin based LigniOx solutions for mortar plasticization in comparison to several commercial lignosulfonates and synthetic superplasticizers are presented. To widen the range of applications of LigniOx lignins, high performance for dispersing of special carbon black into aqueous solutions, used e.g. in paints, inks and various coatings is demonstrated.
    Original languageEnglish
    Title of host publicationNWBC 2018
    Subtitle of host publicationProceedings of the 8th Nordic Wood Biorefinery Conference
    EditorsEemeli Hytönen, Jessica Vepsäläinen
    PublisherVTT Technical Research Centre of Finland
    Pages117-121
    ISBN (Electronic)978-951-38-8671-4
    ISBN (Print)978-951-38-8672-1
    Publication statusPublished - 2018
    MoE publication typeA4 Article in a conference publication
    Event8th Nordic Wood Biorefinery Conference, NWBC 2018 - Scandic Marina Congress Center, Helsinki, Finland
    Duration: 23 Oct 201825 Oct 2018
    http://bioeconomy.vtt.fi/NWBC2018 (Conference website)

    Publication series

    SeriesVTT Technology
    Number340
    ISSN2242-1211

    Conference

    Conference8th Nordic Wood Biorefinery Conference, NWBC 2018
    Country/TerritoryFinland
    CityHelsinki
    Period23/10/1825/10/18
    Internet address

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