硬度和回弹性的协同效应对丁苯橡胶磨耗性能的影响规律研究

摘要

The synergistic effects of hardness and resilience on wear resistance of SBR with different microstructures and formula were investigated. The results showed that, when the micro-structure of SBR was different,and the physical properties of SBR vulcanizates were different,the relationship between the Akron wear volume of SBR vulcanizate and the product of hardness and resilience (H'R) was linear. With different types of SBR,the Akron wear volume of SBR vulcanizate filled with different levels of carbon black and aged for different time also had good linear relationship with H'R.%采用具有不同微观结构的丁苯橡胶(SBR)和具有不同硬度及回弹值的SBR配方体系,研究硬度与回弹值的协同作用对SBR硫化胶磨耗性能的影响规律.结果表明:当SBR的微观结构不同时,SBR硫化胶的物理性能差别较大,但其阿克隆磨耗量与硬弹积[硬度(H)的4次方与回弹值(R)的乘积(H4R)]呈现较好的线性关系；对于同种SBR,炭黑的用量及老化时间对硫化胶的阿克隆磨耗量的影响较大,但其阿克隆磨耗量与硬弹积也呈现较好的线性关系.