| 摘要 |
A technique exists for blending hollow particles in rubber, for example, to enhance braking ability of studless tires on ice, but this technique has the drawback of reducing wear resistance. In the present invention, in order to provide a composition whereby on-ice performance can be dramatically improved while wear resistance is maintained, a thermally expandable microcapsule complex is blended in a rubber component, the thermally expandable microcapsule complex being obtained by preparing an aqueous solution of a water-soluble polymer having a concentration of 1-30% by mass, adding 5-60 parts by mass of cellulose fibers to 100 parts by mass of the aqueous solution to prepare a liquid dispersion (1), adding 10-200 parts by mass of thermally expandable microcapsules to the liquid dispersion (1) to prepare a liquid dispersion (2), and evaporating the moisture content of the liquid dispersion (2). |
