Friction Behavior of Poly (Vinyl Alcohol) Gel Against Stainless Steel Ball in Different Lubricant Media
Friction Behavior of Poly (Vinyl Alcohol) Gel Against Stainless Steel Ball in Different Lubricant Media
复制标题
不同润滑介质中聚乙烯醇凝胶与不锈钢球的摩擦行为
DOI：
10.1115/1.2908895
复制
发表时间：
2008
影响因子：
2.5
通讯作者：
Xiaolin Chen
中科院分区：
文献类型：
--
作者：
Yusong Pan;D. Xiong;Xiaolin Chen
通过球板摩擦磨损测试仪研究了不同变量对聚乙烯醇（PVA）水凝胶和不锈钢球对应物摩擦系数的影响。因素包括润滑条件、滑动速度、不锈钢球直径和负载。结果表明，PVA水凝胶中的游离水对摩擦对应物具有良好的润滑作用。在初始测试阶段，干燥和润滑条件下的摩擦系数差异不大。随着时间的延长，PVA水凝胶在干燥条件下的摩擦系数在短时间内急剧增加。摩擦系数随着不锈钢球滑动速度和直径的增加而减小。当滑动速度从45 rpm增加到225 rpm时，牛血清中的摩擦系数降低了55.38%。摩擦系数随着载荷的增加而增大，且在低载荷区域效果更为明显。
The effects of different variables on the friction coefficient of poly(vinyl alcohol) (PVA) hydrogel and stainless steel ball counterpart were investigated by a ball-on-plate friction and wear tester. Factors included lubrication condition, sliding speed, diameter of stainless steel ball, and load. It is shown that the free water in PVA hydrogel has a good lubrication on the friction counterpart. The friction coefficients have little difference between dry and lubricated conditions during the initial test stage. With the time prolonged, friction coefficient of PVA hydrogel under dry condition sharply increased within a short time. Friction coefficient decreased with increasing sliding speed and diameter of stainless steel ball. The decrease in the friction coefficient in bovine serum was 55.38% while the sliding speed increased from 45 rpm to 225 rpm. The friction coefficient increased as the load increased, and the effect was more conspicuous at low load region.