PPO is a high-performance thermoplastic engineering plastic widely used in fields such as electronics and electrical engineering, automotive manufacturing, and home appliances. When choosing PPO, its heat resistance, electrical insulation, dimensional stability, and mechanical strength should be considered. According to application requirements, modified materials such as PPO/PS or PPO/HIPS can be selected, and comprehensive evaluation should be conducted based on factors such as processing methods and environmental requirements to ensure that material properties match the usage conditions.