Continuous CF/PEEK composite unidirectional prepreg tape

Advantages of continuous carbon fiber CF/PEEK composites:

1. Good fracture elongation and fracture toughness

PEEK, as a representative of high-performance thermoplastic polymers, has a fracture toughness of up to 2.0 KJ/m, which is 20 times that of epoxy resin.

2. Excellent anti-delamination and fatigue resistance

PEEK has good impact resistance, making it one of the most impact-resistant heat-resistant resins. At the same time, PEEK has high rigidity, good dimensional stability, and a low coefficient of linear expansion, exhibiting excellent long-term creep and fatigue resistance.

3. Excellent resistance to chemical corrosion

PEEK has excellent chemical resistance, and is highly resistant to acids, alkalis and almost all organic solvents. It is only corroded by halogens and strong acids at high temperatures, and is soluble in concentrated sulfuric acid at room temperature.

4. Excellent resistance to damp heat

PEEK has low moisture absorption, good resistance to damp heat, and can maintain good mechanical properties even under high temperature and high humidity. In addition, it has outstanding resistance to hydrolysis, low moisture absorption and permeability, and is resistant to steam, water and seawater.

5. Excellent resistance to sliding wear and fretting wear.

PEEK maintains high wear resistance and low friction coefficient at 260 ℃.

6. Biocompatibility

Studies have shown that PEEK reinforced with short carbon fibers, when implanted into animals, exhibits low cytotoxicity, meets the cytotoxicity standards for medical implant materials, and has good blood compatibility and tissue compatibility.

7. X-ray transmission

PEEK has excellent transmission properties and does not produce artifacts like those seen with metal implants under X-ray or CT scans, making it convenient for patients to undergo medical examinations.