Electrical Properties of Engineering Plastics
Electrical Properties of Engineering Plastics
Electrical Insulation
The ability to insulate against electricity is one of the most valuable properties of engineering plastics in electrical and electronic applications. Polyphenylene Oxide (PPO), for instance, is widely used for its excellent electrical insulating properties, which make it suitable for components such as electrical housings, circuit boards, and connectors.
Dielectric Strength
Dielectric strength is a measure of a material's ability to withstand electric stress without breaking down. Polypropylene (PP) and PET plastic are commonly used in applications requiring high dielectric strength, such as in capacitors and insulating films. These materials prevent electrical breakdown and ensure the reliability and safety of electronic devices.
Resistance to Electrical Tracking
Electrical tracking is the formation of a conductive path across the surface of an insulating material, which can lead to electrical failure. Engineering plastics like High Impact Polystyrene (HIPS) are formulated to resist tracking, making them ideal for use in electrical insulators, switchgear, and other high-voltage applications.