Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session B07: Tribocharging and the Role of Water
11:30 AM–2:18 PM,
Monday, March 6, 2023
Room: Room 130
Sponsoring
Unit:
DSOFT
Chair: Ignaas Jimidar, Vrije universiteit Brussel; Scott Waitukaitis, IST Austria
Abstract: B07.00008 : A triboelectric series of identical materials.*
12:54 PM–1:06 PM
Presenter:
Juan Carlos A Sobarzo Ponce
(Institute of Science and Technology Austria)
Authors:
Juan Carlos A Sobarzo Ponce
(Institute of Science and Technology Austria)
Scott Waitukaitis
(Institute of Science and Technology Austria)
In this talk, I will show that even identical materials can be ordered in a triboelectric series. Our experiments consist of bringing pairs of soft polymer samples (PDMS) cut from the same batch into uniform contact and measuring the charge exchanged with a Faraday cup. Testing all possible combinations of all samples, we consistently find nearly perfectly ordered series, with samples in fixed positions on the positive/negative end. Unlike series with different materials, our series has the advantage that any extraneous differences in material properties are not present. Consequently, the existence of a triboelectric series of identical materials represents a unique opportunity to identify the underlying parameter(s) that order the series and drive the exchange of charge.
*This project has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (Grant agreement No. 949120).
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