混炼参数是短纤维-橡胶复合材料制备过程中重要的工艺参数,直接影响着短纤维的补强性能。通过实验对比分析了填充系数、上顶栓压力、冷却水温度、转子转速和短纤维添加份数5个混炼参数对短纤维-橡胶复合材料混炼过程和硫化胶物理机械性能的影响。结果表明随着填充系数、上顶栓压力等参数的增加,混炼过程中消耗的最大功率、单位能耗等不断增加,而硫化胶的物理机械性能则有最佳值。当填充系数为0.6,上顶栓压力为0.6MPa,冷却水温度为40℃,转子转速为70r/min,短纤维添加份数为3份时,短纤维-橡胶复合材料的物理机械性能最佳。
Mixing parameters are important parameters of manufacturing short fiber-rubber composite material.They influence the mixing process and performances of mixed rubber greatly.The influence of mixing parameters including filling factor,ram pressure,cool-water temperature,rotor speed and addition of short fibers on mixing process and performances of mixed rubber were studied by the experimental study.And the experimental results indicated that along with the increasing of filling factor,ram pressure,etc,the maximum power,unit consumption of energy,etc,would increase.While the physical and mechanical properties of vulcanized rubber would get best values.And the proper mixing parameters of short fiber-rubber composite material werel as follows,filling factor was 0.6,ram pressure was 0.6MPa,cool-water temperature was 40℃,rotor speed was 70r/min and addition of short fibers was 3.
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