Characterization of Triboelectric Charge Generation

(De Gruyter) – Triboelectric charging of polymeric materials after repeated contact is of interest in the design of energy harvesting materials. The authors analyzed charge generation between two polymers, polytetrafluoroethylene (PTFE) and Nylon 6,6 under different temperatures, humidities and mechanical loads. The proportionality factor between applied load and maximum achievable surface charge is affected by the sample temperature. This was most likely attributed to the strongly temperature-dependent elastic properties of the polymeric materials. The authors generated  a mathematical formulation for the surface charge density which allows the investigation of maximum charge density for every single operating point within the parameter variation limits. The model parameter for two different structured material pairs are obtained from measurements and applied to the mathematical formulation. The theoretical data demonstrates that the proportionality factor between sample temperature and surface charge is strongly affected by relative humidity.


Edited for Content and Length by Dr. Matthew A. Hood.

The  full article can be found at De Gruyter in the journal of Energy Harvesting and Systems.

DOI: 10.1515/ehs-2018-0001


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