Research of the tribological properties of filled epoxypolymer composites for improving the performance characteristics of friction units of vehicles
Keywords:aggressive environment, anti-friction material, coefficient of friction, epoxy-polyester composite, tribological properties, wear intensity.
The tribological properties of filled epoxy polymer composites were studied in order to improve the operational
characteristics of friction nods of means of transport. The polymer matrix of the composite is formed on the basis of ED-20 epoxy
oligomer (q = 100 wt. parts) with the addition of orthophthalic dicyclopentadiene unsaturated pre-accelerated polyester resin
ENYDYNE H 68372 TAE (q = 10 wt. parts per 100 wt. parts of epoxy resin), at the same time, cold hardening hardener
polyethylene polyamine (PEPA) (q = 10 wt. parts), initiator for polyester resins Butanox-M50 (q = 1.5 wt. parts) was used. The
modifier methylene diphenyl diisocyanate (q = 0.25 wt. parts) and fillers: hexagonal h-NB 8–10 μm (q = 60 wt. parts) and mica
20–40 μm were added to the composition of the epoxy-polyester composite (q = 20 wt. parts). The tribological properties of the composites were studied using a 2070 СМТ-1 friction machine after exposure for 150 days in aggressive river water (Dnipro River) and alkaline environments (50 % NaOH solution).
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