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首页> 外文期刊>Journal of Applied Polymer Science >A preparation method of porous surface nitrile butadiene rubber with low friction coefficient under water lubrication condition by salt leaching
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A preparation method of porous surface nitrile butadiene rubber with low friction coefficient under water lubrication condition by salt leaching

机译：盐浸出水润滑条件下摩擦系数多孔丁腈丁二烯橡胶的制备方法

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摘要

Nitrile butadiene rubber is widely used in water-lubricated bearings due to its excellent performance. Generally, the friction coefficient of water-lubricated rubber bearings typically between 0.05 and 0.18. In this study, a new method for preparing nitrile butadiene rubber with micro-holes surface is developed by porous leaching with salt as pore forming agent. The possibility of using porous surface to minimize friction and wear of rubber materials is researched. The influence of structural parameters, including the hole density and size (which are determined by salt mass fraction of rubber compounds and salt grain-sized, respectively) on tribology performances are also evaluated. In a ring-on-block test, the optimal parameters of modified rubber achieved a low friction coefficient of 0.008, which reduced by 42% compared with untreated one (0.019) under the same operating condition. It can be expected that the developed method is beneficial to reduce the friction coefficient of rubber-steel friction pair under water lubricated condition.
机译：丁腈橡胶因其优异的性能被广泛应用于水润滑轴承中。通常，水润滑橡胶轴承的摩擦系数通常在0.05和0.18之间。本研究以盐为成孔剂，采用多孔浸取法制备了具有微孔表面的丁腈橡胶。研究了利用多孔表面减少橡胶材料摩擦磨损的可能性。还评估了结构参数，包括空穴密度和尺寸（分别由橡胶化合物的盐质量分数和盐粒度决定）对摩擦学性能的影响。在环块试验中，改性橡胶的最佳参数达到了0.008的低摩擦系数，在相同的操作条件下，与未经处理的橡胶（0.019）相比，摩擦系数降低了42%。可以预期，该方法有助于降低水润滑条件下橡胶-钢摩擦副的摩擦系数。

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