Progress in the Localization of PPO/MPPO Materials and Market Landscape

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I. Overview: Polyphenylene oxide PPO (poly(2,6-dimethyl-1,4-phenylene oxide)) is a thermoplastic resin obtained by the high-temperature methylation of phenol and methanol in the presence of metal oxide catalysts to produce 2,6-dimethylphenol, followed by oxidative polymerization. Pure PPO resin has poor processability and low impact resistance; therefore, industrial products are almost always modified polyphenylene ethers (MPPO or PPO alloys), which are typically blended with high-impact polystyrene (HIPS), polystyrene (PS), polyamides (PA), etc., to meet the requirements of various application scenarios. II. Application Areas MPPO is primarily used in fields with stringent requirements for materials: 1. The automotive electronics and components sector, which is the fastest-growing market. It is used in the manufacture of high-frequency connectors, sensor housings, motor mounts, instrument panel frames, fuse boxes, charging gun casings, etc., meeting the requirements for heat resistance, dimensional stability, and lightweight properties. 2. Electronics and electrical applications: (1) Electronics and electrical: Utilized in the manufacture of server/5G base station backplanes, router housings, coil bobbins, relays, switches, etc., taking advantage of its excellent insulation and heat resistance properties. (2) Home appliances: Used for components that require resistance to steam and hot water, such as coffee makers, water heaters, internal components of washing machines, microwave oven door frames, etc. 3. Industrial sector: (1) Machinery: Used in components such as pump bodies, valves, and pipes that require resistance to hot water and chemicals, such as precision gears, pump bodies, and printer bases. (2) Water treatment: Ultrafiltration/nanofiltration membrane materials ； (3) Aerospace: Lightweight structural components, radar domes, etc. 4. Medical and food equipment: Enclosures and components for devices that can be repeatedly steam-sterilized, such as surgical instruments, sterilization components, and fluid pipelines.