Continuous Felt CF/PEEK Composite Sheet

As a typical high-performance thermoplastic resin, PEEK exhibits outstanding performance in various properties. When combined with continuous carbon fibers, the properties of the two materials are effectively integrated, resulting in even more excellent overall performance. Continuous carbon fiber CF/PEEK thermoplastic composites, due to their exceptional properties, have been widely used in aerospace, medical, automotive and other fields, and are also the focus of research in major universities, research institutions, and enterprises.

Advantages of Continuous Carbon Fiber CF/PEEK Composites:

1. Good elongation at break and fracture toughness

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

2. Excellent delamination resistance and fatigue resistance

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

3. Excellent chemical corrosion resistance

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

4. Excellent hot and humid resistance

PEEK has low moisture absorption and good hot and humid resistance, maintaining good mechanical properties under high temperature and humidity. In addition, it has outstanding hydrolysis resistance, low moisture absorption and permeability, and resistance to steam, water, and seawater.

5. Excellent sliding wear and fretting wear

PEEK can maintain high wear resistance and low friction coefficient at 250°C.

6. Biocompatibility

Studies have shown that short carbon fiber reinforced PEEK implanted as a prosthetic material in animals has low cytotoxicity, meets the cytotoxicity standards for medical implant materials, and has good blood compatibility and tissue compatibility.

7. X-ray transparency

PEEK has good radiolucency and does not produce artifacts like metal implants in X-ray and CT examinations, making it convenient for patients’ medical examinations, etc.