Abstract
The increase in the adhesive strength of the epoxy and sand composite is equally regulated by the content of the sand component and the dispersiveness of its particles. The wear resistance of the composite is mainly determined by the size of sand particles, and the concentration significantly affects the degree of resistance to abrasive wear only when the fraction dispersiveness is equal to 1 mm. The maximum adhesive strength and wear resistance are characteristic for a composite of the following composition: 30 pts. wt. epoxy glue and 70 pts. wt. natural sand with a dispersiveness of 1 mm.
Highlights
Elimination of worn spots of non-traditional shape, as well as improving the operational properties of the working surfaces of parts using adhesive polymer composites has recently become increasingly wide [1,2]
We used a material consisting of epoxy glue
An increase in the amount of the sand component leads to a rather dramatic increase in the adhesion strength τс (Fig. 3) and it is explained by an increase in the area of contact of particles with the surface of the substrate
Summary
Elimination of worn spots of non-traditional shape, as well as improving the operational properties of the working surfaces of parts using adhesive polymer composites has recently become increasingly wide [1,2]. The determining parameters of such substances are adhesive strength and resistance to various types of wear, including abrasive one. The aim of the study was to identify the degree of influence of the composition of the composite with the epoxy matrix and the dispersiveness of sand filler on its adhesive strength and resistance to abrasive wear.Error! The tested number of composites, taking into account variations in the concentration and dispersiveness of filler particles, amounted to 24 units in total
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