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

A coloring coating and functional technology, applied in the field of composite materials and solid lubrication, can solve the problems of high sensitivity to temperature and humidity, and cannot meet the requirements of surface protection, etc., achieve convenient construction, solve friction and wear and potential corrosion problems, reduce Effect of installation and removal torque

Pending Publication Date: 2020-05-08
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Molybdenum disulfide (MoS) with excellent lubricating properties 2 ) based dry film lubricant, due to its high sensitivity to the temperature and humidity of the environment, it cannot meet the requirements of surface protection in complex environments, especially the anti-corrosion performance

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Raw material ratio: 75g of epoxy resin, 35g of polytetrafluoroethylene, 32g of diaminodiphenol, 70g of aluminum silver powder, 788g of mixed solvent (composed of: ethanol 50 wt%, acetone 10 wt%, ethylene glycol ether 40 wt%. );

[0016] Preparation process: dissolve epoxy resin in 200g mixed solvent; add polytetrafluoroethylene and aluminum silver powder into 300g mixed solvent, and disperse by ball milling for more than 100 hours; Mix the materials, add the remaining amount of mixed solvent, and stir evenly to obtain the functional coating. The performance index of the lubricant is shown in Table 1.

Embodiment 2

[0018] Raw material ratio: 73g of epoxy resin, 34g of polytetrafluoroethylene, 31g of diaminodiphenol, 70g of aluminum silver powder, 4g of cerium trifluoride, 788g of mixed solvent (composed of: ethanol 50 wt%, acetone 10 wt%, ethylene glycol alcohol ethyl ether 40 wt%);

[0019] Preparation process: dissolve epoxy resin in 200g mixed solvent; add polytetrafluoroethylene, aluminum silver powder and cerium fluoride into 300g mixed solvent, and disperse by ball milling for more than 100 hours; dissolve diaminodiphenol with mixed solvent, and mix with The above-mentioned dispersed materials are mixed, the remaining amount of mixed solvent is added, and the mixture is evenly stirred to obtain the lubricant. The performance index of the lubricant is shown in Table 1.

Embodiment 3

[0021] Raw material ratio: epoxy resin 71g, polytetrafluoroethylene 32g, diaminodiphenol 30g, aluminum silver powder 70g, wax powder 9g, mixed solvent 788g (mixed solvent composition: ethanol 50 wt%, acetone 10 wt%, ethylene glycol Diethyl ether 40 wt%);

[0022] Preparation process: dissolve epoxy resin in 200g mixed solvent; add polytetrafluoroethylene, aluminum silver powder and wax powder into 300g mixed solvent, and disperse by ball milling for more than 100 hours; dissolve diaminodiphenol with mixed solvent, and mix with the above Mix the dispersed materials, add the remaining amount of mixed solvent, and stir evenly to obtain the functional coating. The performance index of the lubricant is shown in Table 1.

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/10C09D163/00C09D127/18
CPCC08K2003/0812C08L2205/03C09D5/103C09D163/00C08L27/18C08K7/00C08K3/08C08K3/16C08L23/30
Inventor 崔海霞陈磊俞传勇周惠娣陈建敏李红轩
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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