【Deep Coating Society Coating Information】Polyimide, carbon fiber, special nylon, etc., the refining and chemical industry needs to focus on these 10 new chemical materials

In recent years, the fourth industrial revolution with big data, artificial intelligence, clean energy, green and low-carbon as the main characteristics has been surging, and new technologies, new formats and new industries have emerged one after another
.
The new material industry is a strategic and basic industry, the foundation of the fourth industrial revolution, and the key field of high-tech competition, which has become an important embodiment
of national competitiveness.
New chemical materials are the new fields with the most development vitality and development potential in the chemical industry, and are the key materials required for national economic construction, which are widely used in transportation, medical and health, electronic information, national defense industry, aerospace, new energy and many other fields
.

New chemical materials mainly include high-performance synthetic resins, special synthetic rubbers, high-performance synthetic fibers, special elastomers, nano-chemical materials, composite materials, engineering plastics, high-end carbon materials, electronic chemicals, special coatings, special adhesives, special additives and a series of varieties
.
Based on the upgrading of China's traditional industries and the rapid development of new generation information technology, new energy, rail transit, aerospace and health and other emerging fields, the development potential of new chemical materials is huge
.

1.
Polyimide

Polyimide (PI) is an aromatic heterocyclic polymer compound with a molecular structure containing imide group links, which is one of the best heat-resistant varieties in engineering plastics at present, and is widely used in aviation, aerospace, microelectronics, nano, liquid crystal, laser and other fields
.
The outstanding advantage of high-performance polyimide materials is high temperature resistance, which can be made into films, composite materials, engineering plastics, coatings, fibers and foams and other products, mainly used in aerospace, microelectronics manufacturing and packaging and high-grade electrical insulation and other fields
.
With the rapid development of China's high-tech industry, the demand for high-performance polyimide materials is growing rapidly, and the industrial development potential is huge
.

2.
Carbon fiber

As a high-strength and high-modulus fiber with a carbon content of more than 90%, carbon fiber is widely used in aerospace, sports and leisure, rail transit, wind power, automobiles, pressure vessels and national defense and other fields
.
The industrial production of carbon fiber mainly adopts two routes
: polyacrylonitrile (PAN)-based carbon fiber and asphalt-based carbon fiber.
The production technology of polyacrylonitrile-based carbon fiber is mature, accounting for more than 90% of the global carbon fiber production, and the research and development of asphalt-based carbon fiber has also received extensive attention
in recent years.
At present, the application of domestic carbon fiber is mainly concentrated in the fields of sports and leisure, wind turbine blades and building reinforcement, and the applications in aerospace, new energy vehicles and other fields have not been fully opened, and there is still room
for further improvement in the field of wind power blades.

3.
Special nylon

The shortcomings of conventional nylon, such as strong hydrophilicity, high temperature resistance, and poor transparency, limit its application
.
In order to improve the shortcomings of conventional nylon and add new characteristics, by introducing new synthetic monomers, a series of special nylons with different characteristics and can meet different use occasions can be obtained, mainly divided into high-temperature nylon, long carbon chain nylon, transparent nylon, bio-based nylon and nylon elastomer.

Most high-temperature nylon varieties, such as PA4T, PA6T, PA9T, PA10T, etc.
, can be used to produce automotive parts, mechanical parts and electrical and electronic parts
.
Long carbon chain nylon varieties include PA11, PA12, PA610, PA1010, PA1212, etc.
, which can be used in automobiles, communications, machinery, electronic appliances, aerospace, sporting goods and other fields
.

4.
Biodegradable materials

So far, there are dozens of biodegradable materials developed around the world, mainly including PLA (polylactic acid), PHA (polyhydroxyalkate), PBS (polybutylene succinate), PBAT (polyadipic acid/butylene terephthalate), PCL (polycaprolactone), etc
.
Biodegradable materials are mainly used in the production of disposable tableware, film, film paper, express bags, clothing, plastic tape, etc.
, and are widely
used in packaging, agriculture, 3D printing, modern medicine, textile industry and other fields.
With the continuous tightening of China's environmental protection policies and the accelerated implementation of regulations such as the "plastic restriction order", biodegradable materials have shown broad development prospects
.

5.
Ethylene-vinyl acetate copolymer

Ethylene-vinyl acetate copolymer (EVA) is a thermoplastic resin obtained by high-pressure polymerization process using ethylene and vinyl acetate as raw materials, which is widely used in photovoltaic encapsulant film, wire and cable, foamed shoe material, hot high-end packaging film, melt glue, toys, functional shed film, etc
.
With the rapid development of China's photovoltaic industry, the consumption demand for EVA film has grown rapidly
.
At present, foreign manufacturers mainly include Basel, ExxonMobil, etc.
, and China's manufacturers with the ability to mass-produce EVA photovoltaic materials are only a few companies such as Sirbang, Lianhong Xinke, Ningbo Formosa Plastics, etc.
, with great
development and application potential.

6.
Cyclic olefin copolymers

Cyclic olefin copolymer (COC or COP) is a high value-added engineering thermoplastic
formed by the polymerization of cyclic olefins.
COC/COP resin is widely used in the manufacture of various optical, informational, electrical and medical materials
due to its high transparency, low dielectric constant, excellent heat resistance, and chemical resistance.
The production process of COC/COP is relatively complex, cyclic olefin monomer synthesis is difficult, and only a few foreign companies have reached the level of large-scale mass production with technology and production process, such as TOPAS, Rion, Mitsui, JSR, etc
.
The COC products needed in China are all imported, and the research and development work of some enterprises and research institutions is still in
the stage of small trials.

7.
Polyolefin elastomer

Polyolefin elastomer (POE) materials are made of ethylene, propylene and α-olefins as raw materials, produced by high-temperature solution polymerization process, mainly as impact modifiers and flexibilizers, etc.
, and are widely used in automobiles, packaging, wires and cables, medical devices and household appliances
.
Foreign manufacturers mainly include Dow Chemical, ExxonMobil, Mitsui and so on
.
China has not yet been able to achieve self-sufficiency in such materials, and the products are all dependent on imports, and the market demand potential is large
.

8.
Special rubber

Special rubber refers to synthetic rubber with special properties and special purposes that can adapt to harsh conditions, including fluororubber, silicone rubber, acrylate rubber, polyurethane rubber, polyether rubber, chlorinated polyethylene, chlorosulfonated polyethylene, propylene oxide rubber, polysulfonated rubber, liquid rubber, etc.
, which have important uses
in national defense, industry, cutting-edge science and technology, medical and health and other fields.
At present, the domestic special rubber industry has low-end overcapacity, high-end products still rely on imports, and the development prospects are good
.

9.
Ultra-low abrasion metallocene polyethylene

Ultra-low abrasion metallocene polyethylene is produced by slurry or vapor phase process, mainly used in artificial joint materials, drop boxes and other wear-resistant materials and other fields, with excellent friction resistance, excellent impact resistance and good biocompatibility, and has better processing performance
than ultra-high molecular weight polyethylene.
At present, the polymer materials in artificial joint materials are mainly ultra-high molecular weight polyethylene, which is completely dependent on imports and the product price is high
.

10.
Ultra-high molecular weight polyethylene

Ultra-high molecular weight polyethylene (UHMWPE) is a linear structure thermoplastic engineering plastic, its viscous average molecular weight is usually more than 1.
5 million, with wear resistance, low temperature resistance, corrosion resistance, self-lubrication, impact resistance and other excellent properties
.
UHMWPE fiber, together with carbon fiber and aramid, is known as the three high-performance fibers, is currently the highest specific strength and ballistic resistance fiber among the industrialized fiber materials, widely used in many industries, is the preferred material
for the manufacture of body armor, bulletproof helmets and protective armor.

Source: Super Petrochemical

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