Organic modified epoxy resin. Tribologic aspects

Abstract

this article presents some results of pin-on-disk tests on modified epoxy resins compared with the tribological behavior of the epoxy resin. The tribological response of materials was studied for three regimes force, sliding speed (F,v) of pin-on-disk geometry with the pin made of studied material and steel disk. All the tests were performed under thermos-vision surveillance to point out the temperature value modifications during tests and, at the end, the wear rate was evaluated for each materials. The modification of epoxy resins is an attempt to slightly change the some basic properties of the polymer such as electric conductivity but without changing their most valuable propertiesthermic dimensional stability, high adhesion to almost any other material and mechanical properties. One of the major disadvantages of epoxy resins is their chemical stability that makes them almost impossible to neutralize after their life cycle. In this regard the modification of epoxies by adding small amounts of organic or inorganic compounds could lead to an increase of their environmental acceptability.

Wear Resistance of Selected Anti-Wear Coatings Used in Multi-Material Composite Hydraulic Cylinders

“…Plastics are widely used in the design of machine components (Skowrońska et al, 2021). Their satisfactory mechanical properties, combined with good tribological properties, self-lubrication and the possibility of modifying the composition, allow them to be used in elements such as gears, pumps and others (Chihai et al, 2019;Krawczyk, 2021;Kujawa et al, 2019;Li et al, 2021;Majdič & Strmčnik, 2019;Zhang et al, 2021). Manufacturing large sliding surfaces, such as the inner surface of a cylinder, from thermoset materials, requires specialised manufacturing methods.…”

The Mechanical Properties of Organic Modified Epoxy Resin

“…Among frequently used curing agents for epoxy resins, especially organic and inorganic compounds, are of prime significance in practical applications [4]. In addition, the modifying agents are small particles dispersed in the matrix material, which can be easily obtained and incorporated in the material [4][5][6]. Also, the organic modification agents help to improve the material by increasing the abrasion resistance and lowering the coefficient of thermal expansion [7].…”