What are the advantages of pure PEEK compared with fiber-reinforced PEEK?

PEEK can also be called polyetheretherketone. As a high-performance semi-crystalline plastic, this type of plastic has a series of excellent properties such as excellent chemical resistance, high mechanical strength, and good dimensional stability. According to its performance, it is divided into various series of materials. The most common PEEK material classifications include unfilled PEEK, glass fiber or carbon fiber modified, etc. Unfilled PEEK has irreplaceable advantages

Unfilled PEEK has excellent toughness and impact resistance.

Take PRES '990 series PEEK as an example. The elongation at break of pure resin PEEK is as high as 45%, while that of glass fiber reinforced and carbon fiber reinforced PEEK is only 2.7% and 1.7% respectively. Pure PEEK resin demonstrates excellent toughness.

Not only that, PEEK also has excellent impact resistance. The notched impact test result of PEEK resin shows no fracture.

Chemical corrosion resistance

In terms of chemical resistance, PEEK pure material is the best among the PEEK family. It can be said that only 98% concentrated sulfuric acid can dissolve PEEK pure material. General chemicals have no effect on it at all. Its resistance to different chemical substances also varies, and it also shows resistance to hydrolysis of steam. It is an ideal material for making equipment that requires high-temperature disinfection.

Light weight and high strength

The lightweight nature of PEEK pure material is also worth mentioning, with a density of only 1.31g/cm ³. In the aerospace industry, plastics have been used in structural components due to their light weight and good mechanical strength.

Good insulation and excellent electronic performance

Another excellent property of PEEK pure material is its insulation, which is a core key in oil well logging technology. For some industries where the working conditions are both high temperature and high pressure, such as the oil and gas industry, it can maintain insulation and high mechanical strength in extreme environments.

In addition, PEEK plastic also demonstrates outstanding electronic properties. It features a very stable dielectric constant and a low dissipation factor, which makes this material suitable for use in telecommunication technology.