| 摘要 |
PROBLEM TO BE SOLVED: To provide a friction material composition which has high thermal conductivity and excellent abrasion resistance and shows friction coefficient during braking at high speed, the friction material composition not using copper having a high environmental burden and either not containing copper having a high environmental harmfulness or containing 0.5 mass% or less of copper, when used for a friction material for vehicle disc brake pads and the like; and to provide a friction material obtained by molding the same.SOLUTION: This invention relates to a friction material composition that comprises a binding agent, an organic filling material, an inorganic filling material, and a fiber substrate, where the frictional material composition either does not comprise therein copper as an element or comprises 0.5 mass% or less of copper. The frictional material composition comprises 1-20 mass% of spheroidal graphite having an average particle diameter of 1-100 μm.SELECTED DRAWING: None |
