Core Viewpoint - The article emphasizes the importance of focusing on key demand areas in the fine chemical industry, specifically targeting three categories: intermediate raw materials, key materials, and critical equipment, to ensure the supply of advanced and innovative fine chemical products that meet downstream application needs [1][2]. Group 1: Key Demand Areas - The Ministry of Industry and Information Technology has initiated a task to identify innovative fine chemical key products for 2025, concentrating on sectors such as new energy vehicles, medical equipment, mobile communication devices, rail transportation, and marine engineering [2]. - The initiative aims to select units with strong innovation capabilities that possess core technologies in the production of 50 advanced and high-value fine chemical products [2]. Group 2: Intermediate Raw Materials - Key intermediate raw materials include: - Liquid crystal polymer key monomer (4,4'-biphenol) - 1,4-Cyclohexane diisocyanate (CHDI) - 5-Hydroxymethylfurfural (HMF) [2][3]. Group 3: Key Materials - Important materials identified are: - Polyether imide (PEI) - Liquid crystal polymer (LCP) - High tear-resistant silicone rubber - Ethylene-acrylic acid copolymer (EBA) for high-pressure cable shielding - High-temperature and low-temperature resistant fluorinated ether rubber - Ethylene-vinyl alcohol resin (EVOH) [2][5]. Group 4: Critical Equipment - The critical equipment necessary for production includes: - Polyphenylsulfone membrane equipment - High-performance fiber polymerization reactors - Specialized isocyanate production reactors (CHDI, NDI) - Key purification equipment for ultra-pure reagents - Separation materials [3][9]. Group 5: Application Fields - The identified products have applications in various fields such as: - New display technologies, 5G/6G communication, and electric vehicles for liquid crystal polymers - Aerospace components and high-temperature cables for polyimide materials - Fire barriers and insulation materials for PIPD fibers [4][5][6]. Group 6: Additional Innovations - The article also highlights the potential of advanced materials like: - High-performance polyurethane coatings for mobile communication devices and marine engineering - High-performance carbon fiber materials for aerospace and wind power applications [8][10].

Core Viewpoint - The Ministry of Industry and Information Technology has initiated a key product innovation task for fine chemicals, focusing on five major industries and over 100 new materials to meet critical demands in sectors such as new energy vehicles, medical equipment, mobile communication devices, rail transportation, and marine engineering [3][4]. Group 1: Key Product Categories - The initiative targets three main categories: intermediate raw materials, key materials, and critical equipment, encompassing 50 advanced and innovative fine chemical products with high application value [3][4]. - Intermediate raw materials include key monomers for liquid crystal polymers, 1,4-cyclohexane diisocyanate, and 5-hydroxymethylfurfural [4]. - Key materials consist of polyether imide, liquid crystal polymers, high tear-resistant silicone rubber, and ethylene-acrylic copolymers for high-pressure cable shielding [4][5]. Group 2: Specific Product Applications - Specific products listed include: - 4,4'-Biphenol for liquid crystal polymers, used in new displays and 5G/6G communications [6]. - BPDA for high-end polyimides, applicable in aerospace and electronic information [6]. - PBO fiber key monomer for aerospace and rail transportation applications [6]. - High-performance polyurethane raw materials for mobile communication devices and marine engineering [6][7]. Group 3: Critical Equipment - Critical equipment includes: - Polyethersulfone membrane processing equipment for blood dialysis [5]. - High-precision self-control drip valves for fine chemical production [7]. - High-performance fiber polymerization reactors for producing high-performance fibers [7]. - Equipment for producing special isocyanates, including reactors and distillation towers, is also highlighted [5][7].

Core Insights - Polyetherimide (PEI) is a high-performance thermoplastic developed by GE in 1982, known for its excellent thermal stability and mechanical properties [1][2] - PEI is widely used in various industries including aerospace, automotive, electronics, and healthcare due to its unique characteristics [2] Group 1: Characteristics of PEI - PEI is a thermoplastic engineering plastic with high-temperature resistance, mechanical performance, chemical stability, and flame retardancy [2] - The glass transition temperature of PEI is 215°C, allowing for long-term use at temperatures between 160°C and 180°C, with intermittent use up to 200°C [2] - PEI exhibits low thermal expansion, maintaining dimensional stability across a wide temperature range [2] - The limiting oxygen index of PEI is as high as 47%, indicating excellent flame retardancy [2] - PEI shows strong resistance to hydrocarbons, halogenated solvents, water, and automotive fluids, demonstrating good stability in various chemical solvents [2] Group 2: Applications of PEI - In the aerospace industry, PEI is used for manufacturing various aircraft components such as sensors and ignition system parts, benefiting from its heat resistance and low smoke emissions [2] - In the automotive sector, PEI is utilized for parts like air doors and sensors, which require high performance and stability in high-temperature environments [2] - In the electronics industry, PEI is applied in solder hole sleeves, connectors, and printed circuit boards, showcasing its excellent electrical properties and dimensional stability [2] - In healthcare, PEI is used for surgical equipment and sterilization trays due to its steam resistance and compliance with FDA regulations [2] - PEI also finds applications in packaging, sports equipment, textiles, mining, marine engineering, and home appliances, highlighting its broad potential [2] Group 3: Market and Development - Global demand for PEI is increasing, with major suppliers including SABIC and GE [2] - Future development directions for PEI include enhancing performance and reducing costs, along with research into bio-based PEI for sustainable development [2] - Innovations in PEI technology involve new copolymers with higher thermal performance and optimized foaming techniques to improve material properties [2]