Triboelectrification typically occurs in the friction process. In this study, we investigated the effect of liquid lubricants of various polarities on triboelectrification in a friction pair consisting of a steel ball and polyvinylidene fluoride blocks. The results revealed that alkanes and alkenes enhanced triboelectrification. On addition of PAO 4, the friction coefficient reduced considerably, and the short-circuit current could be output stably for a long time. With the increase in the viscosity of PAO, the triboelectric signal gradually decreased. This study revealed that the appropriate lubricant and the quantity of liquid can increase the size of the triboelectric signal to achieve a stable output for a long time.

摩擦起电通常发生在摩擦过程中。在这项研究中，我们研究了各种极性的液体润滑剂对由钢球和聚偏二氟乙烯块组成的摩擦副中摩擦带电的影响。结果表明烷烃和烯烃增强了摩擦带电。加入PAO 4后，摩擦系数显着降低，短路电流可长时间稳定输出。随着PAO粘度的增加，摩擦电信号逐渐减弱。该研究表明，适当的润滑剂和液体量可以增加摩擦电信号的大小，从而实现长时间的稳定输出。