45r
45r-
Friction coefficient decreased with the increasing sliding speed and diameter of stainless steel ball . It reduced 54.24 % , while the sliding speed enhancing from 45r / min to 225r / min.
摩擦副的摩擦系数随滑动速度和不锈钢球直径的增加而下降，当滑动速度从45r/min升至225r/min时，摩擦副的摩擦系数下降54.24%；
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Furthermore , reaction temperature and screw rotate speed have great effect on grafting polymerization . The study result shows that the high performance polymer with high grafting rate can be obtained at the 170 ~ 190 ℃ and rotate speed is 30 ~ 45r / min.
另外反应温度和螺杆转速对接枝聚合反映影响也较大，研究结果表明，当温度在170&190℃、转速在30~45转/min，可制得性能良好接枝率较高的聚合物。