Polyphenylene Oxide/PPO
In the field of engineering plastics, PPO primarily refers to polyphenylene oxide (PPO), a thermoplastic engineering plastic. Due to the high processing difficulty of its pure form, modified varieties (such as MPPO/PPO alloys) are predominantly used in industry. Its core advantages lie in exceptional heat resistance, corrosion resistance, and electrical insulation, making it particularly suitable for harsh environments involving high temperatures and humidity.
– High-temperature stability: Capable of continuous operation at 120-150°C with higher short-term tolerance. Resists deformation and aging at elevated temperatures, making it common in automotive engine components.
– Corrosion resistance and electrical insulation: Exhibits excellent stability against acids, alkalis, salts, and other chemicals. Its superior electrical insulation properties make it a standard material in electronics (e.g., relay housings, circuit board supports).
– Enhanced performance through modification: While pure PPO exhibits limited toughness, blending with materials like PS (polystyrene) improves both rigidity and resilience. This modification also simplifies processing, broadening its application scope.
Application
PPO finds extensive use across automotive, electronics, and machinery industries, including automotive intake manifolds and high-frequency insulating components in electronic devices.
