Polyetheretherketone(PEEK) CAS#29658-26-2
Excellent High-Temperature Resistance – PEEK maintains stable performance under high temperatures, making it suitable for demanding engineering environments.
Outstanding Mechanical and Dimensional Stability – It offers high mechanical strength and excellent dimensional stability, ensuring reliable structural performance.
Strong Chemical and Wear Resistance – PEEK exhibits excellent resistance to abrasion, chemical corrosion, and hydrolysis, extending its service life in harsh conditions.
Wide Industrial Applicability – It can be processed by conventional thermoplastic methods and is widely used in aerospace, automotive, electronics, medical, energy, and other high-end industries.
Products Description of Polyetheretherketone (PEEK)
Polyetheretherketone (PEEK) is an engineering thermoplastic. Its molecular structure contains p-methacrylate and terephthalic anhydride side chains, resulting in a broad molecular weight distribution.
PEEK not only offers excellent high-temperature resistance but also outstanding mechanical strength, dimensional stability, abrasion resistance, chemical corrosion resistance, electrical performance, hydrolysis resistance, and environmental friendliness.
It is typically supplied in the form of granules, powder, and fine powder. The material can be processed using conventional thermoplastic molding techniques and is widely used in aerospace, automotive manufacturing, electronics, medical, energy industries, machinery, and automotive coatings.
| English Name | PEEK |
| English Synonyms | 4,4' -Difluorobenzophenone,hydroquinonepolymer;Methanone,bis(4-fluorophenyl)-,polymerwith1,4-benz enediol;POLY ETHER ETHER KETONE;PEEK;polyetheretherkrtone;Polyetheretherketone(peek);Poly(oxy-1,4-p henyleneoxy-1,4-phenylenecarbonyl-1,4-phenylene) average Mw ~20,800, average Mn -10,300,PEEK ISO 9 001: 2015 REACH |
| CAS Number | 29658-26-2 |
| Molecular Formula | C19H14F203 |
| Molecular Weight | 328.31 |
| Melting point | 322°℃ |
| Density | 1.3 g/mL at 25 °C(lit.) |
| Solubility | Insoluble in common solvents |
| Form | tubes |
| Color | gray |
| InChI | InChl=1S/C13H8F2O.C6H6O2/c14-11-5-1-9(2-6-11)13(16)10-3-7-12(15)8-4-10;7-5-1-2-6(8)4-3-5/h1-8H;14,7-8H |
| InChIKey | JUPQTSLXMOCDHR-UHFFFAOYSA-N |
| Smiles | OC1C=CC(O)=CC=1.C(C1C=CC(F)=CC=1)(C1C=CC(F)=CC=1)=0 |
| Surface tension | 42.1mN/m at 20°℃ |
Product Application of Polyetheretherketone (PEEK)
Polyetheretherketone (PEEK) features excellent heat resistance and chemical stability. It is widely used in aerospace, automotive manufacturing, electronics, medical and energy industries, machinery, automotive coatings, and oil exploration.
Its powder coating process shows promising application prospects in corrosion protection engineering, household appliances, electronics, and mechanical equipment.
In addition, PEEK can be used to manufacture packed columns and ultrafine tubing for liquid chromatography, as well as carrier materials for liquid crystal glass.



