摘要 |
<p>[Object] To provide the friction material comprising the fiber base, the binder, and the friction modifier and being produced by forming the NAO friction material composition containing at least one type of material that elutes the sulfate ion, which secures the preferable wear resistance and restricts seizure due to corrosion. [Means to Resolve] The friction material composition contains a hydrophilic activated carbon as the friction modifier. The hydrophilic activated carbon has an average particle diameter of 80-200µm and an amount thereof is 0.4-5.0 weight % relative to the total amount of the friction material composition. Also, the friction material composition contains 8-12 weight % of a hydrophilic phenolic resin as the binder relative to the total amount of the friction material composition.</p> |