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CARTIF PROJECTS

WoodLi

Development of bio-adhesives based in lignia for wood composite panels

Description

WoodLi project focuses on the development of bioadhesives for use in the manufacture of wood-based panels used, among others, in the construction sector. The bioadhesive of the WoodLi project will differ from commercial adhesives in that it will be of renewable origin and will not present toxicity problems associated with the emission of volatiles such as the formaldehyde. To achieve this goal, the majority fraction of the bioadhesive will be lignin or lignin derivatives, and formaldehyde will be replaced by other non-toxic and non-volatile compounds.

    Objectives

    • Establishment of a lignin extraction and purification protocol that takes into account the efficiency and reduction of the environmental impact of the process. 
    • Obtaining purified lignin of equal or superior performance to commercial lignins.
    • Development of a experimental protocol for transforming ligning into intermediate products with the appropiate characteristics and functionalities for its application in bioadhesives.
    • Substitution of environmentally unfriendly and/or toxic to humand health compounds present in commercial adhesives with lignin derivatives and non-toxic compounds.
    • Development of new laboratory-scale, lignin-based bioadhesive formulations for use in the manufacture of wood-based panels and construction materials.

    Actions

    • Analysis of wood lignin extraction and purification methods and lignin specifications for use in the formulation of bioadhesives.
    • Analysis of wood lignin extraction and purification methods and lignin specifications for use in the formulation of bioadhesives.
    • Development of experimental techniques for the extraction and purification of lignin for use in bioadhesives. Characterisation of lignin.
    • Chemical modification of lignin to increase its reactivity in the formulation of bioadhesives.
    • Laboratory-scale development of new formulations of lignin-based bioadhesives.
    • Collaboration in the development of a pilot-scale process for obtaining bioadhesives from lignin.

    Expected Results

    • Obtaining a bioadhesive which majoritary fraction is ligning or derivatives from lignin.
    • Bioadhesive will not contain toxic compounds traditionally present in commercial adhesives.
    • Bioadhesive quality will be the appropiate for tis use in manufacture of wood composite panels.

    R&D Line

    • Development of bio-based materials with application in polymers, adhesives and coatings with special propperties.

    Partners

    CDTI Eureka

    Total Budget: 685,735€

    CARTIF Budget: 180,000€

    Duration : 02/11/2022 – 30/06/2025

    Responsible

    Marta Ramos Andrés

    División de Agroalimentación y Procesos

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