A rubber composition contains a rubber component, an additive, and a filler, wherein the additive comprises a compound including carbon atoms and at least one atomic species selected from the group consisting of silicon atoms, nitrogen atoms and oxygen atoms; the total number of silicon atoms, nitrogen atoms and oxygen atoms constituting the compound is 0.27 or more and 0.80 or less based on the number of the carbon atoms; the Hansen solubility parameter of the compound satisfies a relationship represented by the following formula (2); and the molecular weight of the compound is 200 or more and 15000 or less. 6≤4δD1−δD22+δP1−δP22+δH1−δH220.5
一种橡胶组合物包含橡胶成分、添加剂和填料,其中添加剂包含一种化合物,该化合物包括碳原子和至少一种从
硅原子、氮原子和氧原子组成的组中选出的原子种类;构成该化合物的
硅原子、氮原子和氧原子的总数基于碳原子数为 0.27 或更多和 0.80 或更少;该化合物的汉森溶解度参数满足下式 (2) 所表示的关系;以及该化合物的分子量为 200 或更多和 15000 或更少。6≤4δD1−δD22+δP1−δP22+δH1−δH220.5