| 摘要 |
PURPOSE: A friction material composition for a brake pad is provided to secure a stable and safe frictional coefficient regardless of usage conditions including quick braking, high speed braking, or high temperature condition braking. CONSTITUTION: A friction material composition for a brake pad contains 7~9wt% of binder, 10~12wt% of abrasive, 32~34wt% of lubricant, 35~37wt% of reinforced fiber, and 14~29wt% of filler. The binder is a modified phenol resin. The abrasive is selected from the group consisting of ZrSiO_4, Fe_3CrO_4, and MgO. The lubricant is selected from synthetic graphite, petroleum coke, SBR, MoS_2, SnS, CuS, and vermiculite.
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