Provided is a rubber-steel cord composite which is excellent in workability and which is markedly excellent in tensile characteristics, an adhesive property after vulcanization for a short time and a heat resistant adhesive property. The rubber-steel cord composite has such a constitution that a steel cord which has a brass-plated layer on a peripheral surface thereof and in which a content of phosphorus contained in the form of oxide in a wire surface layer region extending from a surface of the above brass-plated layer up to a depth of 5 nm in a wire radial direction toward the inside is 1.5 atomic % or less is adjacent to a rubber composition containing a rubber component, sulfur and a sulfeneamide base vulcanization accelerator represented by the following Formula (I):
(wherein R1 is a branched alkyl group having 3 to 12 carbon atoms; R2 is a linear alkyl group having 1 to 10 carbon atoms; R3 to R6 are a hydrogen atom, a linear alkyl group or alkoxy group having 1 to 4 carbon atoms or a branched alkyl group or alkoxy group having 3 to 4 carbon atoms, and they may be the same or different; x is an integer of 1 or 2, and n is an integer of 0 or 1).
本发明提供了一种橡胶-钢帘线复合材料,该复合材料具有优异的可加工性、明显的拉伸特性、短时间
硫化后的粘合特性以及耐热粘合特性。该橡胶-钢帘线复合材料具有如下结构:钢帘线的外围表面具有镀黄
铜层,在从上述镀黄
铜层表面延伸至钢丝径向向内 5 纳米深度的钢丝表面层区域中,以氧化物形式存在的
磷含量为 1.5 原子%或更少,该钢帘线与含有橡胶成分、
硫和亚磺酰胺基
硫化
促进剂的橡胶组合物相邻,橡胶成分、
硫和亚磺酰胺基
硫化
促进剂由下式(I)表示:
(其中 R1 是具有 3 至 12 个碳原子的支链烷基;R2 是具有 1 至 10 个碳原子的直链烷基;R3 至 R6 是氢原子、具有 1 至 4 个碳原子的直链烷基或烷氧基或具有 3 至 4 个碳原子的支链烷基或烷氧基,它们可以相同或不同;x 是 1 或 2 的整数,n 是 0 或 1 的整数)。