PEEK, the full name of which is polyetheretherketone, is a polymer material with excellent performance. It is mainly used to replace metal materials. Under the background of "plastic replacing steel" and "lightweight", PEEK gradually replaces the use of metal materials in the mid-to-high-end field with its excellent performance. PEEK has shown broad application prospects in many fields with its excellent high temperature resistance, wear resistance, chemical corrosion resistance and other characteristics. In the field of aerospace, PEEK materials are widely used in the manufacture of aircraft, rockets and other aircraft due to their light weight, high strength and high temperature resistance; in the field of medical devices, PEEK materials are used to manufacture surgical instruments, artificial joints and other medical devices due to their good biocompatibility and non-toxic and harmless characteristics; in the field of electronics and electrical appliances, PEEK materials are widely used in the manufacture of electronic components such as circuit boards and connectors due to their excellent insulation properties and arc resistance; in the field of automobile manufacturing, PEEK materials are used to manufacture key components such as automobile engines and brake systems due to their excellent wear resistance and impact resistance.
Plastic profiles are mainly plates, bars, and pipes, and the rest are sheets, capillaries, etc. Today we are going to talk about PEEK filaments/capillaries in PEEK profiles.


PEEK filaments have a normal operating temperature of 260 degrees, are corrosion-resistant, and can be used in solvents for a long time. Because they are resistant to hydrolysis, they can be cleaned and disinfected in high-temperature steam. They have high toughness and can be continuously extruded without breaking. PEEK filaments are also environmentally friendly materials that meet the US FDA food hygiene requirements and are flame retardant and have a wide range of uses. They are widely used in analytical instruments, petrochemicals, medical equipment, aerospace, papermaking machinery and other industries.
Our company's PEEK filaments are extruded using imported extrusion equipment, and the raw materials of the products are imported British Victrex PEEK450G pure resin. The diameter specifications of PEEK filament products are: 0.5 mm; 1.0 mm; 1.5 mm; 2.0 mm; 2.5 mm; 3.0 mm; 4.0 mm.

PEEK capillary is a very thin PEEK tube. The PEEK capillary produced by continuous extrusion process has better biocompatibility and less precipitation than metal capillaries. It is more pressure-resistant and has better fastness than ordinary plastic capillaries.


Application scenarios of PEEK capillaries
1. Chromatographic analyzers, with low density and good sealing function, can prevent sample contamination;
2. Biomedical fields, such as blood analysis, drug separation, etc., with good biocompatibility and chemical stability, can maintain the purity of analytical samples without causing harm to the human body;
3. Fuel cells, which can maintain stability under extreme temperatures and gases and are flame retardant;
4. In the field of optical fiber communications, it has the characteristics of high temperature resistance, corrosion resistance and low refractive index, which can maintain the transmission efficiency of optical signals.


Since there are many demands for PEEK capillary tubes in the market, there are many specifications produced. Common specifications include outer diameter 1.6mm, inner diameter 0.13mm, 0.25mm, 0.5mm, 0.75mm, 1mm; outer diameter 3.2mm, inner diameter 1.6mm, etc.
