# Temperature Dependence of Nylon and PTFE Triboelectrification

## TL;DR

This study investigates how temperature affects tribocharging between nylon and PTFE, revealing that higher temperatures reduce charge transfer, likely due to changes in surface water adsorption, with implications for industrial applications.

## Contribution

It demonstrates the temperature dependence of triboelectrification in nylon and PTFE and highlights the role of surface water in charge transfer mechanisms.

## Key findings

- Increasing temperature decreases charge transfer magnitude.
- Surface water adsorption is crucial for charge exchange.
- Results are supported by Monte-Carlo simulations and TGA measurements.

## Abstract

Contact electrification, or tribocharging, is pertinent to a broad range of industrial and natural processes involving dielectric materials. However, the basic mechanism by which charge is transferred between insulators is still unclear. Here, we use a simple apparatus that brings two macroscopic surfaces into repeated contact and measures the charge on the surfaces after each contact. We vary the temperature of the surfaces, and find that increasing temperature leads to a decrease in the magnitude of charge transfer. When paired with a Monte-Carlo simulation and TGA measurements, our results support a mechanism where adsorbed surface water is crucial for charge exchange. Our setup is easily extendable to a variety of industrially relevant materials.