Funct. Mater. 2019; 26 (3): 525-529.

doi:https://doi.org/10.15407/fm26.03.525

Research on tribological properties of compositions based on phenylone

O.I.Burya , A.-M.V.Tomina

Dniprovsk State Technical University, 2 Dneprostroevskaya St., 51918 Kamyanske, Ukraine

Abstract: 

The influence of the content of carbon fiber, graphite and their mixture on the tribotechnical characteristics of composite materials on the basis of aromatic polyamide phenylone C-2 was considered in the article. It was shown that the filling of basic material with the mixture of carbon fiber and graphite had a positive impact on its tribological properties such as reduction of the coefficient of friction and intensity of wear by a factor 2.85-4 and 22-32, respectively. It was established that the composite which contains 30 wt. % of carbon fiber and 15 mass % of graphite has the optimal complex of properties (increased wear resistance, low coefficient of friction and low linear coefficient of thermal expansion). That's why, this composite can be recommended for manufacturing of the parts of movable joints of machines and mechanisms working under conditions of friction without greasing.

Keywords: 
coefficient of friction, wear, carbon fiber, graphite, mixture, coefficient of thermal linear expansion.

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