PEEK material is a special engineering plastic with high strength, high temperature resistance, chemical resistance, abrasion resistance and other characteristics. It is widely used in aerospace, petrochemical, electronic appliances, medical, auto parts and other fields. There are many materials that can replace one of its characteristics.
The polyurethane sealing ring should have good sealing performance within the working pressure and a certain temperature range
PEEK materials, PEEK rods, and PEEK plates are highly functional materials invented and patented by British Victrex. PEEK rods and PEEK plates have excellent comprehensive functions that other general plastics cannot match among high-functional polymers, and are suitable for various harsh conditions. The excellent environmental function has been successfully and widely used in aerospace, automotive, electronic semiconductor, electromechanical and other industries where demand is more demanding. It is the material of choice for users to develop new products and improve product life and reliability.
PEEK has the characteristics of high temperature resistance, high wear resistance, high tensile strength, and good flame retardancy. It also has the heat resistance and chemical stability of thermosetting plastics and the molding processability of thermoplastics. The long-term use temperature of PEEK is about 260-280°C, the short-term use temperature can reach 330°C, and the high pressure resistance can reach 30MPa. It is a good material for high-temperature sealing rings. PEEK products are suitable for use in a variety of harsh working conditions.
The hardness of PEEK material depends on whether it is pure material or glass fiber or other additives. Generally, the Shore D of pure PEEK material is generally 88, and the PEEK material reinforced by glass fiber is generally Shore D89, and PEEK reinforced by carbon fiber The material is generally Shaw D91. But different crystallinity will also have different hardness at that time.
PEEK sheet, the Chinese name is polyether ether ketone sheet, is a new type of engineering plastic sheet extruded from PEEK raw materials. PEEK board has good toughness and rigidity, it has excellent fatigue resistance, and maintains good toughness and material stability at high temperatures. With these excellent comprehensive properties, the parts processed by PEEK plates are widely used in automobile connectors, heat exchange parts, valve bushings, deep-sea oilfield parts, and in machinery, petroleum, chemical, nuclear power, rail transit, electronics and medicine, etc. There are a wide range of applications in the field.
