ACID-TYPE CARBOXYMETHYLATED CELLULOSE NANOFIBERS AND PRODUCTION METHOD THEREFOR

ACID-TYPE CARBOXYMETHYLATED CELLULOSE NANOFIBERS AND PRODUCTION METHOD THEREFOR

An object is to provide an acid-type carboxymethylated cellulose nanofiber in which the viscosity is not excessively high at the time of preparing a dispersion liquid and the introduced carboxymethyl group is desalted to convert the acid type, and the acid-type carboxymethylated cellulose nanofiber...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: TAKAICHI, Satoshi, MATSUMOTO, Makoto, FUJII, Takeshi, SASAKI, Kenichiro, ONOGI, Shinichi
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
DERIVATIVES THEREOF
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
POLYSACCHARIDES
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:An object is to provide an acid-type carboxymethylated cellulose nanofiber in which the viscosity is not excessively high at the time of preparing a dispersion liquid and the introduced carboxymethyl group is desalted to convert the acid type, and the acid-type carboxymethylated cellulose nanofiber has 0.01 to 0.50 of the degree of substitution with carboxymethyl group per glucose unit, wherein the B-type viscosity in an aqueous dispersion with a concentration of 0.95 to 1.05% by mass is 1000 mPa·s or more under the condition of 60 rpm and 20°C, and 7000 mPa·s or more under the condition of 6 rpm and 20°C.