I. Introduction to performance：
Nanjing Yuwei New Material Co., Ltd. can produce PEEK rod, plate and pipe by extrusion molding and compression molding, and produce the PEEK parts of various specifications by injection molding and mechanical processing. The modified carbon fiber reinforced PEEK, glass fiber reinforced PEEK, PTFE modified PEEK, graphite, molybdenum disulfide and other filled PEEK of Nanjing Yuwei can be subject to molding, injection molding, extrusion, powder spraying, blow molding, rotation, melting spinning and other forming processes.
II. Product features：
PEEK is an aromatic crystalline thermoplastic polymer material with a melting point of 334℃, which has high mechanical strength, high temperature resistance, impact resistance, flame retardancy, acid and alkali resistance, hydrolysis resistance, wear resistance, fatigue resistance, radiation resistance and good electrical properties.
●High temperature resistance: PEEK resin has high melting point (334℃) and glass transition temperature (143℃), the continuous service temperature is 260℃, and the load heat deformation temperature of its 30%GF or CF reinforced brand is as high as 316℃.
●Mechanical properties: PEEK resin has good toughness and rigidity, and it has excellent fatigue resistance to alternating stress comparable to alloy materials.
●Self-lubricity (corrosion resistance): PEEK resin has excellent sliding characteristics, and is suitable for use under strict requirements on low friction coefficient and wear resistance.
●Chemical resistance: Its corrosion resistance is similar to that of nickel steel. PEEK is only dissolved in concentrated sulfuric acid, which has good chemical resistance, especially more acid and alkali resistance than polyimide at high temperature.
●Flame retardancy: PEEK resin is a very stable polymer, and the 1.45mm thick sample can reach the highest flame retardant standard without any flame retardant.
●Irradiation resistance and peeling resistance: PEEK has good radiation resistance and peeling resistance, so it can be used to make electromagnetic wires for special purposes.
●Fatigue resistance: PEEK resin has the best fatigue resistance among all resins.
●Hydrolysis resistance: The products made of PEEK resin and its composite materials can still keep good performance when used continuously in high temperature and high pressure water.
●Workability: PEEK resin has good fluidity and high thermal decomposition temperature at high temperature, and can be processed by injection molding, compression molding, extrusion molding, blow molding and melt spinning.
●Insulation stability: PEEK has good electrical insulation performance and keeps it in a high temperature range. Its dielectric loss is also very small at high frequency.
●Wear resistance: PEEK's good wear resistance is equivalent to polyimide.
III. Application field:
PEEK has many advantages, so it is widely used in petrochemical industry, electronic and electrical industry, instrumentation, mechanical automobile, Medical and health care, aerospace, military nuclear energy and many other fields have been widely used. Example: At present, the mature applications in China are: Piston ring, thrust ring, choke ring, valve plate, mushroom valve, star wheel, sealing ring, ball valve seat, bearing cage, oil-free lubricated bearing, magnetic pump isolation sleeve, electrode, gear, screw, electromagnetic wire, radiation protection window, microwave digestion tank, wafer carrier, etc.
