FIELD: chemistry.
SUBSTANCE: invention relates to a friction material containing aramid. The friction paper contains filling material, para-aramid fibrous mass and resin. Said para-aramid fibrous mass contains 0.1 to 10% wt polyvinyl pyrrolidone (PVP). Grammage of the paper is within 100 to 800 gsm. The para-aramid fibrous mass containing PVP amounts to 5 to 60% wt, the filling material amounts to 5 to 55% wt and the resin amounts to 5 to 50% wt.
EFFECT: invention ensures improvement of friction characteristics, structural characteristics and containment of the filling material.
14 cl, 1 dwg, 2 tbl, 4 ex
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Authors
Dates
2021-02-08—Published
2017-08-22—Filed