Aluminum powder coloring coating with long-acting lubrication and corrosion prevention functions and preparation method thereof

Abstract

The invention discloses an aluminum coloring coating with long-acting lubrication and corrosion prevention functions. The aluminum coloring coating is composed of a binder, a solid lubricant, an additive and a dispersion medium. The solid lubricant is polytetrafluoroethylene, the binder is bisphenol A epoxy resin, the curing agent is diaminodiphenol, the additive is flake aluminum silver powder, cerium fluoride and oxidized polyethlene wax powder, and the dispersion medium is a mixed solvent of ethanol, acetone and ethylene glycol monoethyl ether. The coating has the advantages of high adhesive force, good flexibility and strong impact resistance, and has the lubricating and anti-corrosion functions, especially, the neutral salt spray test can reach more than 1000 hours, the aluminum coloring coating can used for surface protection of titanium alloy, stainless steel, nickel-based alloy fasteners and threaded connection, can solve the problems of frictional wear and potential corrosionof the fasteners and body structure connecting pieces, and improves the pre-tightening force level under the condition of meeting interference assembly; and the aluminum coloring coating can also be applied to structural fasteners of other high-end aviation weapons, and has a wide application prospect.

Description

technical field

[0001] The invention relates to a polytetrafluoroethylene long-term lubricating and anti-corrosion aluminum powder colored coating and a preparation method thereof, which belong to the technical field of solid lubrication and the technical field of composite materials. Background technique

[0002] The special marine and marine atmospheric environment along the coast and coastal land causes serious corrosion and wear of the equipment used, which seriously affects the normal operation of the equipment. In particular, the corrosion of naval ships, coastal air force aircraft, launch derricks of the rocket force, amphibious combat armored vehicles, and general equipment of coastal forces is more serious. The corrosion and wear of the moving friction pair are special, with both dynamic corrosion and dynamic wear characteristics. There are relatively mature technologies for solving the dynamic wear and static corrosion of the friction pair, but it is one of the ou...

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