Peek and carbon fiber rod have excellent properties, and there is a good interface between peek and carbon fiber rod. Carbon fiber rod can also act as heterogeneous nucleating agent to promote the crystallization of peek in composites. The high-performance composites prepared by combining the two will have better properties.

In the 1980s, ICI first prepared unidirectional carbon fiber rod reinforced polyether ether ketone prepregs by pultrusion melt impregnation, and successively developed a series of prepregs with the brand of APC, of which apc-1 was the first commercial continuous carbon fiber rod reinforced polyether ether ketone composite prepregs.

Apc-2 has better comprehensive performance than apc-1. It is a famous brand at present. The commercial apc-2 consists of a series of products with a thickness of 125? The volume content of carbon fiber rod is about 60%.

Apc-2 has excellent mechanical properties. Its tensile strength is generally greater than 2000mPa, tensile modulus is greater than 135gpa, bending strength is generally greater than 1700mpa, and bending modulus is greater than 120gpa. In addition, apc-2 has a series of excellent properties, including good impact resistance and excellent high temperature thermal stability.

Extremely resistant to damp heat aging, chemical agents, etc. Due to the excellent properties of APC series prepreg, since ICI put it on the market, it has rapidly become a practical advanced thermoplastic composite in the aerospace field, especially in military aircraft.

For example, the United States has applied peek carbon fiber rod composites to the manufacture of helicopter rotors and missile shells, and the stealth helicopter Lhx has adopted such composites. In addition, the F-117A's fully automatic tail wing, the C-130's fuselage's belly panel, and the French gust fuselage's skin all use this composite material.

Although APC series has a series of outstanding properties, ICI keeps the molding technology of APC series strictly confidential for commercial reasons.

Due to the high melt viscosity of PEEK and the property of almost insoluble in any solvent, the preparation of continuous carbon fiber rod Reinforced PEEK composites has always been a technical problem to be solved.

In recent years, with the increasing demand for continuous carbon fiber rod Reinforced PEEK composites, a series of new molding technologies have emerged, which effectively overcome the difficulty of PEEK impregnation.