What is the super engineering plastic PEEK？

PEEK is a semi-crystalline polyarylate thermoplastic polymer classified as a specialty engineering plastic. It exhibits high heat resistance, outstanding mechanical properties, and chemical stability, making it a viable alternative to traditional materials such as metals and ceramics in numerous specialized applications.

>> What are the key applications of PEEK?

Aerospace

As a high-temperature-resistant, lightweight specialty engineering plastic, PEEK (polyether ether ketone) has achieved breakthrough applications in aerospace. With a glass transition temperature of 143°C and superior radiation resistance compared to traditional metals, it has become a critical material for manufacturing lightweight aircraft components.

New Energy Vehicles

PEEK materials serve as a core solution for weight reduction and efficiency enhancement in new energy vehicles. BYD's Seal model adopts PEEK-based electronic expansion valve needles. Tesla Model Y battery pack seals also utilize PEEK composite materials.

Medical & Healthcare

PEEK material, with its outstanding biocompatibility and radiolucency, is an ideal choice for orthopedic implants.

Electronics & Electrical

In semiconductor manufacturing, PEEK material is the preferred lining for etching chamber interiors due to its low outgassing rate and resistance to plasma corrosion.

>> Limitations of Traditional Antioxidants in PEEK Materials:

Antioxidants and other stabilizers are essential to prevent oxidation during high-temperature processing. They function by scavenging free radicals and decomposing peroxides that cause degradation. However, PEEK processing temperatures typically range from 350 to 400°C. These extreme conditions generally render most conventional stabilizers ineffective.

Traditional antioxidants often fail in PEEK applications for three primary reasons:

(1) Volatility: Traditional antioxidants evaporate or boil off at PEEK processing temperatures ( >350°C), creating voids and offering zero protection.

(2) Thermal Decomposition: The antioxidant molecules themselves break down under such intense heat, becoming ineffective or even forming harmful by-products.

(3) Insufficient Protection: They lack the thermal stability to provide "melt protection" over the extended residence times sometimes required for complex injection-molded or extruded parts.

>> OMNISTAB SOLUTION: Ultra-High-Temperature Antioxidants for PEEK

To meet the stringent requirements of PEEK processing, we introduce ultra-high-temperature antioxidants. These specialty antioxidants feature high molecular weight and thermally stable molecular structures, enabling them to withstand extreme temperatures exceeding 350°C while delivering full protection against thermal-oxidative aging.

OMNISTAB HP-136

OMNISTAB AN3114

OMNISTAB AN1425

OMNISTAB AN9128

If you'd like to know more about these Ultra-High-Temperature Antioxidants, welcome to inquire!