It became possible to evenly knead recycled carbon fibers into resin by optimizing defibration, cutting, and dispersion of fibers in a kneading process.
　　[1] Contribution to realizing light weight: Light weight with the specific gravity of about 1.5 (the PPS series) compared with that of iron (7.9) and that of aluminum (2.7). It is possible to introduce thin walls, small size and light weight into existing resin components by achieving high strength.
　　[2] Environment friendliness: Carbon fibers are reused by actively using recycled carbon fibers.
　　[3] Cost friendliness: Recycled carbon fibers are adopted by the pyrolysis method having advantage in terms of manufacturing costs.
　　[4] Responding to ordinary mold injection: Recycled carbon fibers are evenly dispersed based on thermoplastic resin. Ordinary mold injection can be applied. In addition, thermosetting resin base is under development.

◆ Sliding: Wear resistance and attacking capability against the material to be slid of GFRP components with added glass fibers were significantly improved. → Realization of prolongation of the life of resin components.
◆ Stiffness: Stiffness (elastic modulus) of GFRP components was significantly improved. →Realization of small size and thin walls in resin components.
◆ Light weight: Stiffness (elastic modulus) between that of GFRP and that of aluminum → Realization of light weight by replacing with resins in aluminum chassis components

For CFRP using short fibers, their components with complicated forms can bemass-produced by mold injection, but they are not widely used as virgincarbon fibers (CF) are expensive.
In addition, there is a concern that environmental burdens will increase in thefuture due to disposal of CFRP.