| 摘要 |
PROBLEM TO BE SOLVED: To provide a fine cellulose fiber dispersion that achieves a fine cellulose fiber-containing vulcanized rubber composition having high breaking strength and high breaking elongation in a fine cellulose fiber-containing vulcanized rubber composition comprising a fine cellulose fiber and a rubber component.SOLUTION: A method for producing a fine cellulose fiber dispersion includes a fibrillation step of fibrillating a cellulose fiber in a raw material dispersion containing a cellulose fiber subjected to oxidation treatment using an N-oxyl compound and a rubber component to produce a fine cellulose fiber. A fine cellulose fiber-containing vulcanized rubber composition having high breaking strength and high breaking elongation can be produced by performing fibrillation treatment in a dispersion containing the cellulose fiber subjected to oxidation treatment using an N-oxyl compound and a rubber component. |
