This study demonstrates the tribological performance and dielectric interactions in glass fibre reinforced epoxies, indicating critical charge dynamics.
The present study focuses on the correlation between dielectric and tribological behavior of insulating materials, with a particular focus on glass fibre reinforced epoxy composites. This interaction is demonstrated through tribological testing and SEM mirror effect analyses conducted on a neat epoxy and two glass fibre reinforced epoxies that differed solely in their fiber sizing. The interfaces between fibre and matrix function as a diffusion path, trapping electric charges, thereby promoting defect generation. It is also important to note that the transfer of charges across the interfaces helps to stabilise the coefficient of friction and decrease the wear by reducing the accumulation of polarization energy. However, it should be noted that interfacial charge trapping has been identified as a contributor to degradation. The selection of a tailored sizing process enables precise modulation of charge dynamics, thereby optimising the mechanical performance and tribological durability of composites.
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Turki et al. (2025) studied this question.
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