Abstract Triboelectric charging of small particles is a common problem in industrial processes because it can lead to various undesired consequences such as electric discharges or surface adhesion. Despite the many studies on the phenomenon, there remains significant gaps in understanding regarding the charge transfer mechanisms responsible for triboelectric charging, impeding the ability to make predictions regarding a contact between two dielectric materials. An experimental setup measuring the charge generated during a single impact between a dielectric particle and a dielectric target under well controlled conditions is used to investigate the triboelectric charging of a glass bead against polymer targets. Mechanical parameters such as the normal and tangential velocities and their influence over the charge generated at impact are studied statistically against a Polytetrafluoroethylene (PTFE) and a Polyurethane (PU) target, and two different behaviours are exhibited. Additional tests were performed on beads of different diameter in order to enrich the observations previously made on mechanical properties.

中文翻译：

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撞击聚合物的玻璃珠的摩擦带电：机械性能的影响

摘要 小颗粒的摩擦带电是工业过程中的常见问题，因为它会导致各种不良后果，例如放电或表面粘附。尽管对该现象进行了许多研究，但在对负责摩擦带电的电荷转移机制的理解方面仍然存在重大差距，阻碍了对两种介电材料之间的接触进行预测的能力。在良好控制的条件下测量介电粒子和介电目标之间的单次撞击期间产生的电荷的实验装置用于研究玻璃珠对聚合物目标的摩擦带电。针对聚四氟乙烯 (PTFE) 和聚氨酯 (PU) 目标对机械参数（例如法向速度和切向速度）及其对冲击时产生的电荷的影响进行了统计研究，并展示了两种不同的行为。对不同直径的珠子进行了额外的测试，以丰富之前对机械性能所做的观察。