| abstract |
The present invention provides a fine cellulose fiber composite, which is an amine having an ethylene oxide / propylene oxide (EO / PO) copolymerization unit, which is bonded to a fine cellulose fiber having a carboxyl group content of 0.1 mmol / g or more in the form of a salt. It is a carboxyl group, and the molecular weight of the EO / PO copolymerization part is 700 to 10,000, and the content of PO in the EO / PO copolymerization part is 1 to 70 mole%. The fine cellulose fiber composite system of the present invention has high dispersibility to the resin and can exhibit strength enhancement effects, and is suitable for use as various fillers. |