METHOD FOR PRODUCING CELLULOSE NANOCRYSTALS (CNCS)

    公开(公告)号:EP3608342A1

    公开(公告)日:2020-02-12

    申请号:EP19000360.8

    申请日:2019-08-02

    IPC分类号: C08B15/02 C08H8/00

    摘要: A method is proposed for producing cellulose nanocrystals (CNCs) comprising:
    i. a step of feeding a cellulosic raw material, such as native vegetable fibres or vegetable biomass materials or by-products of the textile, milling industries, and of paper,
    ii. a step of putting the cellulosic raw material in contact with an oxidative acid component at high temperature to produce cellulose nanocrystals (CNCs) and
    iii. a step of recovery of the cellulose nanocrystals obtained,
    in which method there is provided a hydrolytic-oxidative microwave-assisted treatment, with closed microwave reactor under pressurised conditions.
    The nanocrystals obtained can advantageously form pourable suspensions, for example as a thin and functional cladding on the activated surface of flexible packaging materials.