PAN carbon fiber and composite material has the following characteristics. Wherein the fiber axis direction in parentheses carbon fiber characteristics.
(1) when compared to metals, low density (1.7-2.0g / cm3), light;
(2) high modulus (200-650GPa), high rigidity;
(3) high intensity (3-7GPa);
(4) fatigue strength;
(5) abrasion resistance, excellent lubricity;
(6) excellent vibration damping;
(7) thermal expansion coefficient (0 ~ -1.1 × 106K-1), good dimensional stability;
(8) having a thermal conductivity (10-160Wm-1K-1);
(9) in an inert gas, excellent heat resistance;
(10) having a conductive (17-5uΩ · m);
(11) of an electromagnetic wave shield;
(12) X-ray transmission is excellent;
(13) belong to a variety of conductive materials can be designed for the purpose of an appropriate structure.