Cellulose nanofiber, production method of same and cellulose...

C - Chemistry – Metallurgy – 08 – B

Patent

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C08B 15/04 (2006.01) D01F 2/00 (2006.01) D21H 11/20 (2006.01)

Patent

CA 2705970

The cellulose nanofiber production method of the present invention comprises an oxidation treatment step for oxidizing native cellulose in a neutral or acidic reaction solution containing an N-oxyl compound and an oxidizing agent that oxidizes aldehyde groups, and a dispersion step for dispersing the native cellulose in a medium following the oxidation treatment step. According to the production method of the present invention, a cellulose nanofiber is provided that has long fibers and demonstrates high strength.

L'invention concerne un procédé de fabrication d'une nanofibre de cellulose, qui est caractérisé en ce qu'il comprend les étapes suivantes : une étape de traitement d'oxydation destiné à oxyder une cellulose naturelle dans une solution de réaction neutre ou acide qui contient un composé de N-oxyle et un oxydant capable d'oxyder un groupe aldéhyde ; et une étape de dispersion destinée à disperser la cellulose naturelle qui a été traitée lors de l'étape de traitement d'oxydation dans un milieu. Le procédé permet de fabriquer une nanofibre de cellulose qui présente une grande longueur de fibre et une résistance élevée.

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