PEEK Chromatography Column Tubing

PEEK (Polyetheretherketone) polymer tubing is biocompatible, chemically stable against most solvents, can be used with stainless steel or polymer fittings, and can replace stainless steel tubing in most liquid analysis systems, offering ease of use.

Advantages:

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

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

Features a 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 expansion)

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, resistance to chemical corrosion, flame retardancy, peel resistance, radiation resistance, stable insulation, hydrolysis resistance, and ease of processing. It is used in aerospace, automotive manufacturing, electronics, electrical, and food processing industries.

PEEK resin has long been used 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 serves as a raw material for engine covers. Components such as bearings, gaskets, seals, and clutch rings made from it are used in transmission, braking, and air conditioning systems.

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～+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 Resistance 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 itself has self-lubricating and wear-resistant properties, allowing it to operate for extended periods without lubrication.

III: Corrosion Resistance

PEEK has a stable chemical structure, providing 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.