PEEK Precision Injection Molding

PEEK (Polyetheretherketone) polymer tubing offers biocompatibility, stable chemical resistance to most solvents, compatibility with stainless steel or polymer fittings, and can replace stainless steel tubing in most liquid analysis systems for convenient use.

Advantages:

High pressure rating (up to 7000 psi in most cases)

High temperature rating (can be used continuously at 100°C)

Very smooth inner surface, generating less turbulence compared to metal tubing of the same size

Unlike stainless steel and titanium tubing, PEEK tubing is flexible and easy to cut

Excellent chemical compatibility; polymers rarely react adversely with solvents

(Except for DMSO, dichloromethane, and THF, which may cause slight swelling)

Polyetheretherketone (PEEK) resin is a high-performance specialty engineering plastic with numerous distinct advantages over other specialty engineering plastics, including high-temperature resistance, excellent mechanical properties, good self-lubrication, chemical corrosion resistance, flame retardancy, peel resistance, radiation resistance, stable insulation, hydrolysis resistance, and ease of processing. It is widely used in aerospace, automotive manufacturing, electronics, electrical engineering, and food processing industries.

PEEK resin was first applied in the aerospace sector, replacing aluminum and other metal materials to manufacture various aircraft components. In the automotive industry, due to its excellent friction resistance and mechanical properties, PEEK resin is used as a raw material for engine covers. Components such as bearings, gaskets, seals, and clutch rings made from PEEK are employed in transmission, braking, and air conditioning systems of automobiles.

Main Physical Properties of PEEK

No. Item Unit Value

1 Specific Gravity g/cm³ 1.32-1.4

2 Moisture Absorption % 0.2

3 Thermal Conductivity (23°C) % 0.25

4 Tg 143

5 Tm 334

6 Operating Temperature -180 to +260

7 Tensile Strength MPa 94

8 Flexural Strength MPa 145

9 Flexural Modulus GPa 3.8

10 Dielectric Constant - 3.2

11 Dielectric Loss - 0.0033

12 Volume Resistivity Ω·cm 10¹⁶

13 Flame Retardancy UL-94 V-0

I: Outstanding Performance

PEEK offers higher wear resistance, high-temperature resistance, and corrosion resistance, thereby extending the service life of equipment.

II: Self-Lubricating and Wear-Resistant

PEEK inherently possesses self-lubricating and wear-resistant properties, allowing it to operate long-term without lubrication.

III: Corrosion Resistance

PEEK has a stable chemical structure, providing excellent corrosion resistance to various organic and inorganic solutions, even at high temperatures.

IV: High-Temperature Resistance

PEEK can be used continuously at 260°C and maintains good mechanical strength even at 300°C.