In a high-speed textile manufacturing plant, a continuous strip of nylon fabric is pulled rapidly over a series of polytetrafluoroethylene (PTFE) rollers. As the fabric leaves a roller, both materials acquire an electric charge.
Explain, in terms of electron transfer, how the nylon fabric and the PTFE rollers become oppositely charged as they separate.
When the conveyor system is paused, a dangling, un-tensioned segment of the nylon fabric is observed to deflect towards and cling to the PTFE roller.
Explain why the fabric moves towards and adheres to the roller.