Triboelectrification of granular insulating materials as affected by dielectric barrier discharge (DBD) treatment |
| |
| Institution: | 1. PPRIME Institute, UPR 3346, CNRS - University of Poitiers - ENSMA, 4 Varsovie Avenue, 16021 Angoulême, France;2. Electrical Engineering Laboratory, 8 May 1945 University, 24000 Guelma, Algeria;1. PPRIME Institute, CNRS - University of Poitiers – ENSMA, IUT, Angoulême, France;2. CITF, Saint Cybardeaux, France;3. Shoubra Faculty of Engineering, Benha University, Cairo, Egypt;4. University of Sidi-Bel-Abbes, Algeria;1. College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China;2. Shanxi Key Laboratory of Electromagnetic Protection Technology, Taiyuan 030006, China;3. School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, China;4. College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, China;1. PPRIME Institute, CNRS – Université de Poitiers – ENSMA, IUT, 4 avenue de Varsovie, Angoulême 16021, France;2. CITF, Dorgeville, 16170 Saint-Cybardeaux, France;1. School of Advanced Materials and Nanotechnology, Xidian University, Xi’an 710071, China;2. Institute of Nanoscience and Nanotechnology, School of Materials and Energy, Lanzhou University, Gansu 730000, China |
| |
| Abstract: | The aim of this paper is to point out the influence of dielectric barrier discharge treatment on tribocharging of granular insulating materials. Particles of Polyvinyl Chloride (PVC) and Polypropylene (PP) were subjected to an AC dielectric barrier discharge (DBD) plasma treatment in ambient airprior to tribocharging in a vibratory device. The charge to mass ratio was measured for treated and untreated materials. Electrostatic separation of a mixture of granular materials (PVC and PP) to measure the effectiveness of DBD treatment was evaluated by processing treated and untreated PVC/PP granular mixtures in a free-fall electrostatic separator. The obtained results clearly indicate that DBD has the capability to influence surface charging proprieties of polymer granular materials. In case of short treatment time, typically less than 3 s, a marked increase in the charge to mass ratios was observed for both PVC (about 35%) and PP (roughly 45%). In the same way, the quantity of DBD-treated materials, recovered after electrostatic separation, was increased by about 104% and 30% for PVC and PP, respectively, as compared to untreated case. The DBD treatment time is a key factor to increase the tribo electric effect. |
| |
| Keywords: | Triboelectricity Dielectric barrier discharge (DBD) Granular material Electric charge Electrostatic separation |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
