Advantages of continuous carbon fiber CF/PEEK composites

May 02, 2023

Advantages of continuous carbon fiber CF/PEEK composites

PEEK CF30 PEEK CF30-2

CFPEEK Composite Support Buckle

1. Good fracture elongation and fracture toughness

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

2. Excellent anti-delamination ability and fatigue resistance

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

3. Excellent chemical corrosion resistance

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

4. Excellent moisture and heat resistance

PEEK has low moisture absorption, good heat and humidity resistance, and can still maintain good mechanical properties under high temperature and high humidity. In addition, it has outstanding hydrolysis resistance, low moisture absorption and permeability, and is resistant 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 as a prosthetic material implanted in animals has low cytotoxicity, meets the cytotoxicity index of medical implant materials, and has good blood compatibility and tissue compatibility.

7. Through X-ray

PEEK has good transmission performance and does not produce artifacts such as metal implants formed under X-ray and CT examinations, which is convenient for patients to check in medical treatment, etc.