COMPOSITION CONTAINING CELLULOSE NANOFIBERS

The present invention provides a rubber composition in which cellulose nanofibers are satisfactorily dispersed in a rubber and which can form molded objects excellent in terms of elastic modulus, wear resistance, etc. This rubber composition comprises cellulose nanofibers, a first rubber component, which is a liquid rubber, and a surfactant. In one embodiment, the cellulose nanofibers contain no ionic groups. In one embodiment, the liquid rubber has a number-average molecular weight of 1,000-80,000.