Dry-film lubricant and method of use thereof

A dry film lubricant, solid lubricant technology, applied in the direction of lubricating compositions, additives, base materials, etc., can solve the problems of organic volatiles or high temperature curing, to achieve improved wear resistance, wide use temperature range, preparation equipment simple effect

Inactive Publication Date: 2009-07-29
泰州市嘉鼎新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional dry film lubricants have disadvantages such as organic volatiles or high temperature curing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1: After the polyoxymethylene sample was ultrasonically cleaned with dichloromethane solvent and soaked in tert-butyl chlorite, the dry film lubricant of the following formula was sprayed under a pressure of 0.20 to 0.35 MPa and heated and cured at 80°C for 30 minutes to form a 15 ~20μm thick solid lubricating film, coating film adhesion is grade 1, passed the 50cm kg impact test, at 3N, sliding speed 0.25m / s, using low carbon steel with a radius of 2.4mm as the pin-on-disk friction and wear test , the amount of wear is K=3×10 -3 mm 3 / Nm, the coefficient of friction is μ=0.20. In the dry film lubricant by weight percentage: 30 parts of methyl methacrylate; 22 parts of butyl acrylate; 5 parts of acrylic acid; 3 parts of maleic anhydride; 24 parts of molybdenum disulfide; 6 parts of polytetrafluoroethylene; OP -103 parts; 5 parts of talcum powder; 2 parts of antimony trioxide; 0.3 parts of dibenzoyl peroxide.

Embodiment 2

[0022] Example 2: After the aluminum alloy sample is anodized, the dry film lubricant of the following formula is sprayed under a pressure of 0.20-0.35 MPa and heated and cured at 80°C for 30 minutes to form a solid lubricating film with a thickness of 25-40 μm. It is grade 1, passed the 50cm kg impact test, at 3N, sliding speed 0.25m / s, using low carbon steel with a radius of 2.4mm as the pin-on-disk friction and wear test of the sliding pin, the wear amount is K=4×10 -3 mm 3 / Nm, the coefficient of friction is μ=0.21. In the dry film lubricant, by weight percentage: 35 parts of methyl methacrylate; 20 parts of butyl acrylate; 5 parts of acrylic acid; 10 parts of molybdenum disulfide; 5 parts of polytetrafluoroethylene; 15 parts of graphite; 20 parts of span-802; 1 part of polyvinyl butyral; 5 parts of talcum powder; 2 parts of antimony trioxide; 0.3 part of dibenzoyl peroxide.

Embodiment 3

[0023] Example 3: After degreasing, derusting and phosphating the Q235 steel plate, spray the dry film lubricant of the following formula under the pressure of 0.20~0.35MPa and heat and cure at 60°C for 45min to form a solid lubricating film with a thickness of 10~15μm , the film adhesion is grade 1, passed the 50cm kg impact test, at 3N, sliding speed 0.25m / s, using low carbon steel with a radius of 2.4mm as the pin-on-disk friction and wear test of the sliding pin, the wear amount is K=3.4× 10 -3 mm 3 / Nm, the coefficient of friction is μ=0.18. In the dry film lubricant by weight percentage: 22 parts of methyl methacrylate; 8 parts of butyl acrylate; 12 parts of methacrylic acid; 10 parts of hydroxyethyl acrylate; 8 parts of E44 epoxy resin; 15 parts of molybdenum disulfide; 15 parts of polytetrafluoroethylene; 3 parts of span-80; 4 parts of talcum powder; 1 part of aluminum hydroxide; 2 parts of antimony trioxide; 0.5 parts of azobisisobutyronitrile.

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Abstract

The invention provides an environmental friendly dry-film lubricant and a use method thereof, which belongs to the technical field of lubricant preparation. The dry-film lubricant comprises a solid lubricant, a dispersing agent, an anti-wear additive, an antioxidant, a reaction promoter, and a film-coated resin monomer; counted in weight percentage, the components and weight ratio thereof are as follows: 10 to 60 percent of solid lubricant, 0.5 to 5 percent of dispersing agent, 2 to 10 percent of anti-wear additive, 1 to 3 percent of antioxidant, 0 to 0.5 percent of reaction promoter, as well as 35 to 80 percent of film-coated resin monomer; the monomer of acrylic ester type is used to initiate copolymerization in situ to form a solid lubricant film. The dry-film lubricant does not contain organic volatiles, has a gentle preparation condition, and has a usage temperature range from -20 DEG C to 250 DEG C. The environmental friendly dry-film lubricant is suitable for the lubricating anti-wear coating on the parts of heat-sensitive base materials like plastics, alloys, and the like, in particular, and is suitable for the lubricating anti-wear coatings of running-in and high/low temperature sliding parts without oil lubrication and spare parts, as well as of microseism wear parts.

Description

technical field [0001] The invention belongs to the technical field of lubricant preparation, and in particular relates to an environment-friendly dry film lubricant and a use method thereof. Background technique [0002] Dry film lubrication is a technique in which solid lubricants, wear-resistant additives, etc. are firmly bonded to the moving friction surface by means of a binder to play a protective role in wear-resistant lubrication. The material forming a solid lubricating dry film is called a dry film lubricant. The dry film formed by the dry film lubricant can act as a solid lubricant under dry friction conditions, and can also be used together with lubricating oil, grease, and paste, as well as an anti-corrosion protective film. It is also used for surface repair or surface wear that has been worn Anti-sticking and anti-fouling (dirt), etc. Widely used in friction parts of aviation, aerospace, machinery, transportation, petrochemical, construction, shipbuilding, e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M111/00C10M103/00C10M107/04C10M125/10
Inventor 乔红斌古绪鹏杨建国陈翔刘玉花裘小宁田雪梅
Owner 泰州市嘉鼎新材料有限公司
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