Triboelectrical charge generated by frictional sliding contact between polymeric materials

T Zeghloul (1) , M Neagoe (1) , Y Prawatya (1, 2) , L Dascalescu (1)

1 PPrime [Poitiers] - Institut Pprime [UPR 3346]
2 Tanjungpura University

The polymers used regularly in mechanical assemblies are brought up in relative sliding. The electrostatic charges generated in these functional conditions are merely known. Many factors are involved in the triboelectric charging process: normal load, the sliding velocity. The aim of this paper is to analyse the influence of these factors in the repartition and evolution of the electric potential at the surface in contact. The tribocharging experiments are carried out with samples cut from three polymers: sample A (5 mm x 15 mm x100 mm) from Acrylonitrile Butadiene Styrene (ABS) or Polypropylene (PP), and sample B (5 mm x 50 mm x 180 mm) from Polyvinyl Chloride (PVC). The normal load is set to four values in the range 2 to 14 N, and the sliding velocity is varied between 70 and 122 mm/s. The results point out that the variation of relative velocity between samples is not changing the average potential for the sample B. The surface potential has a linear increase with the normal load.

Mots clés: polymers; triboelectric charging process

Domaines: Physique [physics]; Sciences de l'ingénieur [physics]

T Zeghloul, M Neagoe, Y Prawatya, L Dascalescu. Triboelectrical charge generated by frictional sliding contact between polymeric materials. IOP Conference Series: Materials Science and Engineering, 2017, 13th International Conference on Tribology, ROTRIB'16 22–24 September 2016, Galati, Romania, 174, pp.012002. ⟨10.1088/1757-899X/174/1/012002⟩. ⟨hal-03664718⟩