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通过加入少量塑解剂SJ-103、适当延长炭黑混入加压时间和提高混炼温度等措施,将胎面胶的三段混炼工艺优化为二段混炼工艺。与原三段混炼工艺相比,优化二段混炼工艺的混炼周期缩短15.6%,总电能消耗减少17.1%;混炼胶的炭黑分散性和硫化特性基本相同;硫化胶的耐撕裂性能、耐磨性能和耐屈挠龟裂性能略好;成品轮胎的耐久性能略有提高。
By adding a small amount of plasticizer SJ-103, appropriately extending the mixing time of carbon black and increasing the mixing temperature, the three-stage compounding process of tread rubber is optimized as the second-stage compounding process. Compared with the three-stage mixing process, the mixing cycle of the optimized two-stage mixing process was shortened by 15.6% and the total electric energy consumption was reduced by 17.1%. The dispersibility and vulcanization characteristics of the black rubber of the rubber compound were basically the same. Crack performance, wear resistance and flex cracking performance slightly better; durability of finished tires slightly improved.