Application Prospect of Polyether Ether Ketone Thermoplastic Resin Composites

Polyetheretherketone (PEEK resin) is obtained by the condensation reaction of 4,4'-difluorobenzophenone and hydroquinone in the presence of an alkali metal carbonate and diphenylsulfone as a solvent. A new type of semi-crystalline aromatic nasal spray thermoplastic engineering plastics. It is a high-temperature resistant thermoplastic with a high glass transition temperature (143°C) and melting point (334°C) and a load-to-heat temperature of up to 316°C (30% glass fiber or carbon fiber reinforced trademark), which can be durable at 250°C Use, compared with other high-temperature plastics such as pi, pps, ptfe, ppo, etc., using the upper limit of temperature exceeds beyond 50 °C; peek resin is not only superior in heat resistance than other high temperature resistant plastics, but also has high strength, high modulus, high Fracture toughness and good dimensional invariability; peek resin can maintain high strength at high temperatures, its bending strength at 200°C is about 24mpa, and its bending strength and compressive strength are still 12~13mpa at 250°C;peek resin The rigidity is larger, the dimensions are invariable, the linear expansion coefficient is small, and it is close to the metal aluminum material; it has excellent chemical resistance, and only the strong chemical can melt or smash. It, its corrosion resistance and nickel steel, at the same time it has its own flame retardant, under the premise of the flame release of smoke and toxic gases less, strong anti-radiation ability; peek resin toughness is good, should be alternating The good resistance to abrasion is excellent in all plastics, and it is comparable to that of alloys. The peek resin has outstanding tribological characteristics, excellent resistance to sliding wear and fretting wear, especially at 250°C. The abrasion resistance and low friction coefficient; peek resin is easy to extrusion and injection molding, processing performance is excellent, high molding efficiency. In addition, peek also has excellent functions such as good self-lubrication, easy processing, constant insulation, and resistance to hydrolysis, making it widely used in aerospace, automobile manufacturing, electronic and electrical, medical and food processing and other areas, opening up the manipulation. The prospects are very broad and unrestrained.

In aerospace, peek resin can replace aluminum and other metal materials to manufacture various types of aircraft parts, manipulate its excellent flame retardant performance, and can be used to make internal parts of aircraft to reduce the risk of aircraft fire.

In electrical and electronic fields, peek resin has good electrical performance and is an ideal electrical insulator. It can maintain excellent electrical insulation under the premise of high temperature, high pressure and high humidity and other harsh working environments. In terms of electrical and electronic fields, it is gradually becoming the second largest use of peek resin. Because the peek resin itself is very high in purity, the mechanical and chemical functions are not changed, which results in a drop in the contamination of the wafer during processing. Peek resin does not distort over a large temperature range, and parts constructed with it can withstand the hot temperatures of thermal welding processes. According to this feature, in the semiconductor industry, peek resin is often used to manufacture wafer carriers, electronic insulation films, and various types of connection devices. Others can also be used for wafer carrier insulation films, connectors, and printed circuits. Boards, high temperature connectors, etc. In addition, peek resin can also be used in μg/l grade ultrapure water delivery and storage equipment such as pipes, valves, pumps and accumulators. At the moment, the production of integrated circuits in Japan and other countries has utilized peek resin materials.

In medical treatment, peek resin is used in artificial bone that can be replaced with metal, except for surgical and dental equipment requiring high production sterilization, several times of use, and some close medical equipment. The artificial bones constructed from peek resin have the advantages of light weight, non-toxicity, and strong corrosion resistance. They are also the materials closest to human bones that are guessed in plastic materials. They can be organically contacted with the body, so peek resin is used instead of metal. The human skeleton is a very important use in the medical field. It has far-reaching significance and value. Its potential use prospects are very gratifying.

In terms of fuel-fired power, peek resin has high temperature resistance, is not easily hydrolyzed, and is also resistant to radiation, so the wire and cable coil bobbin used in the construction has been successfully used in nuclear power plants.

In the oil exploration and mining industry, it can be used to make special geometry probes accessible to mining machinery.

In the mechanical industry, peek resin is often used to build shrink valve, piston rings, seals and various types of chemical pumps and valve components. Using this resin instead of stainless steel to construct the impeller of the vortex pump can significantly reduce the quiet noise level of the wear water and delay its useful life. In addition, since peek resin is suitable for the specification of the workpiece material of the pipe group, various types of adhesives can be used for bonding under high temperature, so the modern connector will be another lurking utilization market.

In automotive and other industries, the excellent friction and mechanical properties of peek resins are used as an alternative to metal stainless steel and titanium for the manufacture of engine inner housings, automotive bearings, gaskets, seals, disperser gear rings, etc. Various types of parts and components can also be used in the transmission, braking and air conditioning systems of automobiles. Boeing aircraft, Amd, Nissan, nec, Sharp, Chrysler, General Motors, Audi, and Airbus have started to use this type of material for many years. In the coating industry, the fine powder coating of peek resin is covered in the metal profile. We have obtained metallic pee** coating products with good insulation, corrosion resistance, heat resistance and water resistance, and are used in the fields of chemical anti-corrosion, household appliances, electronics, and machinery. In addition, peek resins can also be used to manufacture packed columns for liquid chromatography analyzers and superfine tubes for connection.

In order to meet the requirements of manufacturing high-precision, heat-resistant, wear-resistant, anti-dumping, and impact-resistant parts, peek resin can be obtained by performing peek blending, filling, fiber compounding, and other strengthening and modification measures, and can be used to obtain superior performance of peek plastic alloy or Peek composite material. If peek and polyether ketone are blended, a composite material having a specific melting point and a specific glass transition temperature can be obtained, and the processing and shaping performance of the material can be improved; the composite material blended with peek and polyether sulfone has outstanding mechanical properties. In addition, the flame-retardant performance has been improved; the material made of special phenolic resin intervened in peek has special anti-friction function; the composite material made of peek and PTFE is blended to maintain high strength and high hardness of peek. At the same time, it also has a convex wear resistance, can be used to manufacture mechanical components such as sliding bearings, seal rings, etc.; peek can be modified and strengthened with various fibers such as carbon fiber and glass fiber to make a high-performance composite material, fiber The reinforced peek composite material has excellent creep resistance, heat resistance, aging resistance, and impact resistance. Inserting carbon fiber or glass fiber in peek can also greatly increase the tensile and flexural strength of the material; inserting whisker material in peek can improve the hardness, rigidity and dimensional invariability of the material, and can be used to manufacture large-scale materials. Hydrogen compressors for petrochemical production lines, and ring and mesh valves for LPG gasifiers. The peek composite material reinforced with inorganic nano-materials is a new type of composite material combining organic resin and high-functional inorganic nano-particles, which can significantly improve the impact resistance and friction resistance of peek resin, and at the same time improve peek's Rigidity and dimensional invariability further expand the use of peek resin.