| 摘要 |
PURPOSE: A rubber composition for tire for car is provided to improve the strength of a rubber composition, heat generation and adhesion by mixing general carbon black and carbon black surface-treated with organic acids as a reinforcing filler. CONSTITUTION: A rubber composition for tire for car comprises a base rubber 100.0 parts by weight, and as a reinforcing filler, carbon black 10~50 parts by weight and carbon black surface-treated with organic acids 10~50 parts by weight. The carbon black surface-treated with organic acids is surface-treated using at least one selected from the group consisting of a stearic acid, formic acid, acetic acid, benzoic acid, citric acid, ethanedionic acid and maleic acid hydroxyphosphonocarboxylic acid in the amount of 10~50 weight% based on the total weight of the organic acid and carbon black. |
