"Made in China 2025" focuses on the major needs of economic and social development and national security, selects 10 major advantages and strategic industries as breakthrough points, and strives to reach international leading position or international advanced level by 2025. The ten key areas are: the new generation of information technology industry, high-end CNC machine tools and robots (300024), aerospace equipment, offshore engineering equipment and high-tech ships, advanced rail transit equipment, energy-saving and new energy vehicles, power equipment, agricultural equipment, New materials, biomedical and high performance medical devices.
In order to indicate the development trends and development priorities of the ten key areas and guide the innovation activities of enterprises, the National Manufacturing Power Construction Strategy Advisory Committee specially organized the “Technical Roadmap for the Key Fields of Made in China 2025”, which refers to the polymer materials. The directly related items are as follows:
1. Reduce the hull friction resistance coating
Focus on breakthroughs in new high-performance resistance-reducing coating technology, ship bottom air lubrication and resistance reduction technology.
2, low temperature materials and cold protection equipment
Focus on the development of low temperature start-up and sealing technology for core hydraulic components such as low temperature materials, pumps and valve parts suitable for polar navigation vessels.
3, lightweight body
Achieve breakthroughs in composite/mixed materials technology and reduce costs. The application rate on new energy vehicles reaches 30%, and the autonomy rate exceeds 50%.
4, high performance polyolefin materials
Break through high-melting index polypropylene, ultra-high molecular weight polyethylene, foamed polypropylene, polybutene-1 (PB) and other industrial production technologies to achieve scale applications.
5, polyurethane resin
Focus on the development of environmentally friendly polyurethane materials such as waterborne polyurethane materials, and accelerate the development of raw materials such as aliphatic isocyanates.
6, fluorosilicone resin
Focus on the development of polyvinylidene fluoride, PET, other fluororesins and silicone, silicone oil and so on.
7, special synthetic rubber
Focus on the development of isoprene rubber and the development of isobutylene to synthesize isoprene; development of silicone rubber, solution-polymerized styrene-butadiene rubber and rare earth butadiene rubber; development of halogenated butyl, hydro-butadiene nitrile and other rubber with special properties.
8. Bio-based synthetic materials
Focus on breakthrough bio-based rubber synthesis technology, bio-based aromatics synthesis technology, bio-based nylon preparation key technology, new bio-based plasticizer synthesis and application key technologies, bio-based polyurethane preparation key technology, bio-based polyester preparation key technology, biological method Preparation of key basic technologies for basic chemical raw materials.
9. Bio-based light materials
Focus on the development of polylactic acid (PLA), polybutylene succinate (PBS), polyterephthalate glycol (PET, PTT), polyhydroxyalkanoic acid (PHA), polyamide (PA) and other products. The optical purity of PLA key monomers L-lactic acid and D-lactic acid is over 99.9%, and the cost is reduced by 20%; PBS key monomer bio-based succinic acid and 1,4-butanediol increase the bioconversion rate by 5-10%. The PTT key monomer 1,3-propanediol is fermented by non-grain raw materials such as tapioca starch and glycerin, and the industrialization of PTT fiber polymerization spinning; the purity of PA key monomer pentanediamine sulfate is higher than 99%, and the cost is reduced by 20 %.
10, special engineering plastics
Focus on the development of thermoplastic polyimide (PI) engineering plastic resin, polyphthalate-type polyethersulfone ketone copolymer resin (PPESK), high-end fluoroplastic processing of special fibers, filter materials, high temperature resistant functional film, high performance Resin-based composite materials, high temperature resistant insulating materials, high temperature resistant functional coatings, high temperature resistant special adhesives. Thermoplastic polyimide engineering plastic resin, viscosity 0.38dL/g, Tg=230-310°C, Td5%>500°C, tensile strength>100MPa, bending strength>150MP, cost 28MPa, elongation>350%, insulation Strength > 3.5KV / mil. Meet the requirements of C12 in SEMI standard; resistant to high and low temperature fluorine functional film, special fluorine fiber and filtration products: meet high-end environmental protection requirements, PTFE resin requires compression ratio >3000, tensile strength >28MPa, elongation >360%; And PVDF resin for pump, valve and pipeline for chemical fluid transportation requires density of 1.75-1.77g/cm3, melting index of 0.5-2.0g/10min, melting point of 156-165°C, thermal decomposition temperature ≥390°C, moisture content ≤0.10%, The glass transition temperature is ≤ -35 ° C, and the embrittlement temperature is ≤ -62 ° C.
11. Advanced textile materials
(1) High-end industrial textiles
In 2020, the company will realize the independent industrialization of absorbable sutures and hemodialysis materials, partially replace foreign imported products; meet the functional protection requirements of heat, biochemistry, static electricity and radiation; the performance of high-temperature filtration and water filtration products meet the requirements of various application fields; geotechnical materials Meet the construction requirements of complex geological environment. In 2025, it meets the requirements of multi-functional composite protection, while achieving light weight, comfort and partial intelligence. The life and stability of filtration products are further improved, and the combination of low-cost applications and intelligent monitoring and early warning functions is realized.
(2) Functional textile new materials
In 2020, the flame retardant limit oxygen index is >32, no droplets, drip diffusion time <1s, energy consumption reduced by 20%. In 2025, high-end products are basically self-sufficient.
(3) Bio-based chemical fiber
2020 PTT fiber raw material 1,3-propanediol purity greater than 99.5%, cost control below 15,000 yuan / ton; polylactic acid heat resistance temperature ≥ 110 ° C, monomer purity ≥ 99.9%, PLA fiber rupture strength greater than 3.5g / d The elongation at break is 30%-35%. The production cost of PLA fiber in 2025 is close to the cost of PET production.