| 摘要 |
PROBLEM TO BE SOLVED: To provide a composite material excellent in mechanical physical properties such as a strength.SOLUTION: A composite material contains a fine cellulose fiber and a resin. The fine cellulose fiber is composed of a plurality of cellulose single fibers, the average fiber width is 2 to 50 nm, the average fiber length is 100 to 1,500 nm, the crystallinity is 70 to 98%, and 20% or more of cellulose single fibers with respect to the total of the cellulose single fibers have a bent portion. |
