A method for lowering the dynamic-to-static modulus ratio of vulcanized rubber, the method comprising a first step of kneading a rubber component, a filler and a compound represented by formula (I) or a salt thereof, a second step of kneading the kneaded mixture obtained in the first step, a sulfur component and a vulcanization accelerator, and a third step of thermally treating the kneaded mixture obtained in the second step, in formula (I), n represents an integer of 0 to 10. The compound represented by formula (I) or a salt thereof is preferably S-(3-aminopropyl)thiosulfuric acid or a salt thereof.
一种降低
硫化橡胶动静模量比的方法,该方法包括第一步捏合橡胶组分、填料和式(I)代表的化合物或其盐,第二步捏合第一步得到的捏合混合物、
硫组分和
硫化
促进剂,第三步热处理第二步得到的捏合混合物,在式(I)中,n代表0至10的整数。式(I)代表的化合物或其盐最好是 S-(3-
氨基丙基)
硫代
硫酸或其盐。