In today’s fast-paced technological development, industries such as aerospace, humanoid robotics, and new energy vehicles are demanding increasingly stringent material performance. PEEK (Polyether Ether Ketone) offers high strength, high modulus, and excellent mechanical stability, allowing it to withstand complex stresses. It has shown outstanding performance in humanoid robot joints and new energy vehicle components, making it one of the most highly sought-after materials this year.

Basic Properties of PEEK Material
PEEK (Polyether Ether Ketone) is a semi-crystalline, thermoplastic aromatic polymer with a range of remarkable properties.

First and foremost, it boasts excellent high-temperature resistance, with a glass transition temperature of up to 143°C and a melting point around 334°C. It can be used continuously at temperatures up to 250°C, and even short-term usage can reach temperatures above 300°C.

PEEK exhibits high strength and high modulus characteristics. Its tensile strength exceeds 100 MPa, and both its bending strength and modulus are also outstanding. Additionally, it possesses excellent toughness and impact resistance, which allows the material to withstand complex stresses without breaking, making it suitable for use in demanding environments.

PEEK also offers exceptional resistance to most chemical agents, including organic solvents, acids, and alkalis. Whether in highly corrosive chemical environments or complex industrial media, PEEK maintains its performance without degradation. Its low friction coefficient and wear resistance make it ideal for manufacturing components like bearings and gears, effectively reducing wear and extending service life. Furthermore, its flame-retardant properties provide a unique advantage in fields requiring high fire resistance, such as electronics and electrical appliances. Additionally, its excellent electrical insulation properties meet the strict demands of electronic components for insulating materials.

Current Production Status of PEEK Materia
Globally, the production of PEEK material is primarily concentrated in the hands of a few companies. For instance, Victrex, a UK-based company, is one of the leading manufacturers of PEEK, with advanced production processes and extensive experience. Its products hold a significant position in the international market. Additionally, companies like Evonik from Germany also have a notable presence in the production of PEEK materials.

Domestically, the production of PEEK materials is gradually developing. Zhongyan Co., one of the earliest companies in China to engage in PEEK production, has made significant achievements. Its annual output ranks among the leaders in the domestic market, and it continues to innovate in high-end products such as implant-grade PEEK, wire materials, and wafer boxes, with small-scale sales revenue already realized. At the same time, companies like Wotech Co. are actively entering the PEEK material industry, with plans to reach an annual polymerization capacity of 1,000 tons. The construction and installation of the first-phase production line have been largely completed.

Wide Applications of PEEK Material

(1) Aerospace Industry

In the aerospace industry, reducing weight and improving performance are constant pursuits. PEEK material, with its high strength, high-temperature resistance, and low density, is widely used in aircraft engine components, wing structures, satellite parts, and more. In the hot-end components of aircraft engines, PEEK can withstand high-temperature gas erosion and complex mechanical stresses, replacing traditional metals. This effectively reduces engine weight and improves fuel efficiency.

(2) Medical Field

PEEK material has vast potential in the medical field. It has excellent biocompatibility and does not provoke immune responses in the human body, making it suitable for manufacturing artificial joints, spinal implants, dental restoration materials, and more. Compared to traditional metal implants, PEEK has a lower elastic modulus, more closely matching the mechanical properties of human bone, which reduces the stress shielding effect and promotes bone tissue growth and healing.

(3) Electronics and Electrical Appliances

As electronic and electrical products continue to evolve toward miniaturization and higher performance, the application of PEEK material has become increasingly widespread. In the manufacture of electronic components, PEEK is used as an insulating material for circuit boards, chip packaging, and more. Its excellent high-temperature resistance and electrical insulation properties ensure the stable operation of electronic components in complex environments with high temperatures and high voltage. PEEK is also used for manufacturing electronic device housings, connectors, and other parts, with its flame retardancy and mechanical properties meeting the safety and reliability requirements of electronic and electrical products.

(4) Automotive Industry

With the automotive industry shifting toward lightweight and electrification trends, PEEK material has become an important application material. In new energy vehicle motors, PEEK is used to manufacture enamelled wire materials, enhancing the motor's high-temperature resistance and insulation properties. Furthermore, PEEK is used to make seals for lithium batteries, ensuring battery sealing and safety under complex working conditions. In the automotive powertrain system, bearings, gears, and other parts made from PEEK can reduce weight, decrease friction loss, and improve fuel efficiency and power performance.

(5) Industrial Manufacturing

In industrial manufacturing, PEEK material is widely used in the production of mechanical components designed for harsh environments. For example, in chemical pumps, valves, and other equipment, PEEK’s corrosion resistance and wear resistance make it an ideal material choice.

PEEK Long Carbon Fiber Composite Materials

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