Custom PEEK blocks sheet

PEEK material (Polyetheretherketone) is a high-performance semi-crystalline engineering thermoplastic with excellent corrosion resistance, very low moisture absorption, good fire resistance, excellent mechanical strength over a wide temperature range, and good dimensional stability. The crystalline nature of PEEK contributes to its excellent performance. PEEK plastic is tough, strong, rigid, has superior creep resistance, and excels in performance-demanding thermal, chemical, and combustion performance applications.

Polyetheretherketone (PEEK) resin is a special engineering plastic with excellent performance. Compared with other special engineering plastics, it has many significant advantages, such as high temperature resistance, excellent mechanical properties, good self-lubrication, chemical corrosion resistance, flame Peel resistance, radiation resistance, stable insulation, hydrolysis resistance and easy processing, etc., are widely used in aerospace, automobile manufacturing, electrical and electronic, medical and food processing and other fields. Excellent performance and wide application, PEEK resin was first used in the aerospace field, replacing aluminum and other metal materials to manufacture various aircraft parts. In the automobile industry, because PEEK resin has good friction resistance and mechanical properties, it is used as a raw material for the manufacture of engine inner covers, and various parts such as bearings, gaskets, seals, and clutch rings are used in the transmission and brake of automobiles. And air conditioning systems are widely used. PEEK resin is an ideal electrical insulator, and it can still maintain good electrical properties under harsh working conditions such as high temperature, high pressure and high humidity.

PEEK plastic material has excellent dimensional stability characteristics, which is very important for some applications. Changes in environmental conditions such as temperature and humidity have little effect on the size of PEEK parts, which can meet the requirements for use under relatively high dimensional accuracy requirements.

Four characteristics of PEEK material:

1. The shrinkage rate of PEEK plastic raw material injection molding is small, which is very beneficial to control the dimensional tolerance range of PEEK injection molded parts, so that the dimensional accuracy of PEEK parts is much higher than that of general plastics;

2. The coefficient of thermal expansion is small, and with the change of temperature (which can be caused by the change of ambient temperature or frictional heat during operation), the size of the parts changes very little;

3. Good dimensional stability. The dimensional stability of plastics refers to the dimensional stability of engineering plastic products during use or storage, because the activation energy of polymer molecules is increased, resulting in a certain degree of curling of the chain segments;

4. PEEK has outstanding thermal hydrolysis resistance, and its water absorption is very low in high temperature and high humidity environments, and there will be no obvious changes in size of general-purpose plastics such as nylon due to water absorption;

PEEK is an ideal electrical insulator. It can still maintain good electrical insulation performance under harsh working conditions such as high temperature, high pressure and high humidity. Therefore, the field of electronic information has gradually become the second largest application field of PEEK sheets. Pipes, valves and pumps are commonly used in the semiconductor industry to manufacture wafer carriers, electronic insulating diaphragms and various connection devices.

As a semi-crystalline engineering plastic, PEEK is insoluble in almost all solvents except concentrated sulfuric acid, so it is often used to make compressor valve plates, piston rings, seals, and various chemical pump bodies and valve components.