Preparation And Properties Of SiC-containing PES Coatings With High Anti-wear Performance

There are three forms of material failure in modern industry components, namelywear, fracture, and corrosion, while wear accounts for about60percent of the whole.Wear consumes a lot of energy each year, so it’s of vital importance to do research in thefield of anti-wear material either for the development of national economy, or energysaving.In order to reduce the wear of metal components, more and more attention is drawnto polymer coating. Polyethersulfone specialty plastics have excellent thermal stabilityand mechanical property. Polyethersulfone resin based coatings have many advantages,such as good adhesion, impact resistance, excellent corrosion resistance, besidespolyethersulfone resins can be used to prepare water-based paint which isenvironmentally friendly and convenient for construction. Currently polyethersulfonecoating has been widely used in kitchen appliances, home appliances, industrial moldsand plastic machinery etc. The study on polyether sulfone abrasion resistant coatingcould not only expand the application range of polyethersulfone, but also offer a choicefor abrasion resistant coating. So it’s a meaningful work to study the polyethersulfoneabrasion resistant coating.In this paper, many kinds of polyethersulfone based coating are fabricated with thefillers of SiC and PTFE. The basic properties of the coating such as adhesion, impactresistance, corrosion resistance, thermal stability are studied in this paper. The study isfocused on the influence of particle size and content of the filler SiC on tribologicalproperties of the coating, and explores the tribological performance of the coatingsunder different test conditions.The result shows that the tribological performance of the coating filled with10wt%5μm SiC and20wt%PTFE is the best, with the minimum friction coefficient0.1253, and the main friction mechanism is light abrasive wear and fatigue wear. Theminimum wear is obtained when the coating is filled with30wt%5μm SiC and20wt%PTFE. The pressure affects the tribological performance of the coating significantlywhen coatings are tested under different conditions. The main friction mechanism islight fatigue wear and abrasive wear in low pressure, while in high pressure the frictionmechanism is severe fatigue wear, abrasive wear and adhesive wear. Speed has littleeffect on the tribological performance of the coating.