摘要:
The invention relates to a method for forming a film-forming hydrophobic layer on a substrate, which method includes: forming an aqueous suspension of cellulose nanofibers, CNF; forming, in water and with a water-immiscible solvent having an evaporation temperature below that of water, a cationic nanoemulsion of a substance forming covalent bonds with the cellulose; mixing the suspension and the nanoemulsion such as to produce a mixture resulting from an adsorption of said substance by the CNF; coating a substrate with said mixture; and proceeding to an annealing suitable for grafting said substance to the CNF.
摘要:
The invention relates to a layer for coating a medium, comprising a mixture of cellulose nanofibres and grains of a filler or pigment, in which: the cellulose nanofibres have a diameter of less than 50 nm and a shape factor greater than 30, and at least 50% of the grains have a size smaller than 500 nm.
摘要:
The invention relates to a process for manufacturing a fibrillated cellulose powder suitable for being dispersed in an aqueous medium, comprising a step (12) of adding a monovalent salt to a fibrillated cellulose suspension, followed by a lyophilisation step (14).