COMPOSITION FOR PREPARING FRICTION MATERIAL Russian patent published in 2005 - IPC

FIELD: special compositions.

SUBSTANCE: invention relates to a method for preparing composition compounds based on phenolformaldehyde resins, in particular, friction materials for members of breaking device constructions. The composition for preparing friction material comprises the following components, wt.-%: butadiene nitrile rubber, 1-7; phenolformaldehyde resin, 11-25; copper powder, 7-9; barite, 17-19; carbon fiber, 11-13; graphite, 6-10; magnesium oxide, 1-3; diabase powder, 2-4, and basalt fiber, the balance. Invention provides enhancing friction properties of material resulting to optimization of effect the hydrogen wearing an reducing value of the material wear in its working in corrosive hydrogen-containing media.

EFFECT: improved and valuable properties of composition.

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