Advanced Organic Materials | High-Performance Resins – Industrialization of Key Technologies for Advanced New Materials

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To accelerate the development of the new materials industry, improve technical capabilities and core competitiveness, and lay a solid foundation for building a strong manufacturing nation, this plan is formulated in accordance with the Three-Year Action Plan to Strengthen the Core Competitiveness of the Manufacturing Sector (2018–2020). Main tasks and expected goals: Focusing closely on the major needs of the nation’s economic and social development, and following the approach of independent innovation and focusing on key areas, efforts will be made to industrialize key new material technologies with high market potential and added value. The development of public service platforms will be accelerated to boost the level of growth in the new material industry. Requirements for key technology industrialization projects in advanced chemical new materials: Advanced organic materials | High-performance resins (I) Engineering plastics 1. Polycarbonate: It features high transparency, impact resistance, and dimensional stability; the light transmittance of 2 mm thick sheets reaches 90%, with a melting range of 220–240 °C. The scale of a single unit in the phosgene process reaches 60,000 tons per year ； The scale of a single unit in the non-phosgene process reaches 100,000 tons per year. 2. Polyphenylene sulfide: It possesses excellent thermal stability, chemical stability, and electrical properties; its weight-average molecular weight is ≥40,000, the crystallization melting point is ≥280 °C, and the glass transition temperature is ≥90 °C. The scale of a single unit reaches 10,000 tons per year. 3. Special polyesters and key monomers: including PCT (cyclohexanedicarboxylic acid dimethyl terephthalate) and its copolymer PETG (ethylene terephthalate-1,4-cyclohexanedicarboxylic acid dimethyl terephthalate), PEN (ethylene terephthalate of 2,6-naphthoic acid), as well as the key monomers PDO (1,3-propanediol), CHDM (1,4-cyclohexanedicarboxylic acid dimethyl ester), and NDA (2,6-naphthoic acid). The PCT can withstand long-term use at temperatures up to 130 °C, featuring high strength and high toughness ； PETG is highly transparent and has excellent impact resistance ； PEN can withstand long-term use at temperatures up to 160 ℃, has a tensile strength of >74 MPa, and excellent gas barrier properties. The capacity of a single unit reaches 5,000 tons per year. 4. Polyphenylene oxide: It possesses high heat resistance and chemical resistance, a low water absorption rate, and a high heat distortion temperature of 190 °C; its operational temperature range over the long term is from -127 °C to 121 °C. The scale of a single unit reaches 10,000 tons per year. 5. Aromatic homopolymers: including polyether ether homopolymers, polyether homopolymers, and polyether ether homopolymer homopolymers. Polyether ether ketone is also a major type; it is a semicrystalline polymer with a glass transition temperature of >143 °C and a melting point of >334 °C. The capacity of a single unit reaches the order of 1,000 tons per year. 6. Polyaryletheretherketone: It exhibits high temperature resistance along with excellent mechanical properties; its heat distortion temperature is 260 °C, it can withstand pressure at 230 °C for extended periods, and it features high strength, high modulus, and good dimensional stability. The capacity of a single unit reaches the order of 1,000 tons per year. 7. Polybenzimidazole: Polymerization temperature 40,000, density 1–1.5 g/cm3, glass transition temperature >400 °C, thermal decomposition temperature >600 °C. The capacity of a single unit reaches the hundred-ton per year level. 8. Special engineering plastics with heteronaphtho-biphenyl structures: including polyaramides and polyarylethers, with heat resistance ranging from 250 to 370 °C, tensile strength of 90 to 120 MPa, and an oxygen index of 32 to 45; they are soluble in aprotic polar solvents. The capacity of a single unit reaches the hundred-ton per year level. 9. Thermotropic liquid crystal polymers: Polymers in an intermediate state between solid crystals and liquids, with a tensile strength > 150 MPa, a flexural strength > 205 MPa, a notched impact strength > 12 kJ/m2, and a heat distortion temperature > 280 °C. The capacity of a single unit reaches the hundred-ton per year level. 10. Adiponitrile: The capacity of a single production facility reaches 50,000 tons per year. 11. Methyl methacrylate: Isobutylene process route. The capacity of a single unit reaches 50,000 tons per year. (II) High-end polyolefins 1. High-carbon α-olefins: Through oligomerization processes, high-carbon α-olefins with eight carbon atoms or more can be produced, with each production unit having a capacity of over 50,000 tons per year. 2. Metallocene polyethylene: Develop metallocene polyethylene production lines with an annual capacity of 10,000 tons or more, utilizing existing or newly built facilities. 3. Ethylene and α-olefin copolymer (POE) elastomers: Synthesized through a process that combines ethylene and α-olefins (mainly octene-1) using metallocene catalysts along with the solution polymerization technique for olefins. The scale of a single unit reaches 10,000 tons per year. 4. Ethylene-vinyl alcohol copolymer (EVOH resin): The capacity of a single production facility reaches 10,000 tons per year. (III) High-performance fluorosilicone resins 1. High-performance fluororesins and monomers: Special polytetrafluoroethylene can be processed by melting; polyvinylidene fluoride reaches film-forming quality; ethylene-tetrafluoroethylene copolymers feature high transparency, excellent stain resistance, easy cleaning, high strength, and corrosion resistance; trichloroethylene copolymers can cure at room temperature. The capacity of a single unit reaches the order of 1,000 tons per year. 2. High-performance silicon resins and monomers: Silicon resins possess high heat resistance and excellent insulation properties, with a dielectric strength of >30 KV/mm; they can be used for extended periods at temperatures above 180 ℃. Priority will be given to the development of phenyl silicone resins, silicone copolymer-modified epoxy resins, vinyl silicone oils, phenyl silicone monomers, and vinyl silicone monomers. The capacity of a single unit reaches the order of 1,000 tons per year. (IV) Others 1. Polyurethane adhesives for food packaging: capable of withstanding high-temperature steaming at 120–135 °C or solvent-free types. The capacity of a single unit reaches 5,000 tons per year. 2. Enhanced flame-retardant insulating polyurethane foam material: water vapor permeability of 2.8 g/m2/h ； Thermal conductivity (-163 °C) ≤ 0.019 W/(m•K) ； Oxygen index (%) ≥ 24 ； Vertical combustion (flame tip height within 20 s in mm ≤ 110–120; self-extinguishes upon ignition). The capacity of a single unit reaches the order of 1,000 tons per year. 3. Special (aliphatic/cycloaliphatic) isocyanates: These mainly include aliphatic/cycloaliphatic isocyanates such as hexamethylenediisocyanate (HDI), isophoronediisocyanate (IPDI), and dichlorohydrin-methane-4,4’-diisocyanate (HMDI), and they possess excellent mechanical properties, outstanding chemical stability, as well as good light and weather resistance. The scale of a single unit reaches 10,000 tons per year. 4. New types of biodegradable plastics: These include carbon dioxide-based plastics, PBS (polybutylene succinate), PBAT (polyethylene terephthalate/butylene adipate), PBSA (polybutylene succinate/adipate), polyhydroxyalkanoates (PHA), polycaprolactone (PCL), and other biodegradable plastics.