Molybdenum disulphide high dispersion modified epoxy resin wear-resistant coating material and preparation method thereof

A technology of epoxy resin and molybdenum disulfide, applied in epoxy resin coatings, coatings, lubricating compositions, etc., can solve the problems of short shelf life of coatings, coating defects, difficult thickness control, etc., and achieve simple preparation methods , Overcoming poor dispersion and improving compatibility

Inactive Publication Date: 2009-05-06
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The polymer-based bonded solid lubricating film can meet the above requirements, but the resin-based bonding coating on the outer surface of the polymer-based bonded solid lubricating film composite film has solid

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1. Take 20g of molybdenum disulfide with a particle size of 0.1μm, dry the molybdenum disulfide particles at 100°C for 12 hours to remove water, place them in 50g of toluene solvent, and use an ultrasonic oscillator to clean and remove residual impurities on the surface of the particles. Take 1g each of the organic molybdate coupling agent and the γ-aminopropyltriethoxysilane coupling agent, dissolve them in a composite solvent obtained by mixing 14g xylene and 6g 1-butanol, add the above-mentioned 20g molybdenum disulfide, Uniformly dispersed by ultrasonic vibration, the coupling agent modified highly dispersed molybdenum disulfide used for epoxy resin wear-resistant coating is obtained.

[0033] 2. Take 25g of bisphenol A type epoxy resin E51 and keep the temperature at 60°C for 90 minutes, then dissolve it in a composite solvent obtained by mixing 17.5g of xylene and 7.5g of 1-butanol, and use strong stirring and ultrasonic dispersion to make it Complete dissolution ...

Embodiment 2

[0038] 1. Take 12g of molybdenum disulfide with a particle size of 50 μm, dry the molybdenum disulfide particles at 110°C for 10 hours to remove moisture, place them in 50 g of toluene solvent, and use an ultrasonic oscillator to clean and remove residual impurities on the surface of the particles, and take a particle size of 10 μm 11.5g of graphite, the graphite particles were dried at 110°C for 5 hours to remove moisture, placed in 50g of toluene solvent, and cleaned with an ultrasonic oscillator to remove residual impurities on the surface of the particles. Take 0.75g of organic molybdate coupling agent and BYK142 wetting and dispersing agent respectively, dissolve them in the composite solvent obtained by mixing 14g of xylene and 6g of 1-butanol, add the above-mentioned 12g of molybdenum disulfide and 11.5g of graphite, and disperse through ultrasonic vibration Uniform, to obtain a coupling agent modified highly dispersed molybdenum disulfide composite solid lubricant for e...

Embodiment 3

[0043] 1. Take 18g of molybdenum disulfide with a particle size of 150μm, dry the molybdenum disulfide particles at 120°C for 8 hours to remove water, place them in 50g of toluene solvent, and use an ultrasonic oscillator to clean and remove residual impurities on the surface of the particles, and take a particle size of 1μm 10g of fluorinated graphite, dried the fluorinated graphite particles at 100°C for 5 hours to remove water, placed in 50g of toluene solvent, and cleaned with an ultrasonic oscillator to remove residual impurities on the surface of the particles. Take 1g of organic molybdate coupling agent, dissolve it in the composite solvent obtained by mixing 18g xylene and 12g 1-butanol, add the above-mentioned 18g molybdenum disulfide and 10g fluorinated graphite, disperse evenly through ultrasonic vibration, and obtain Coupling agent modified highly dispersed molybdenum disulfide composite solid lubricant for resin wear-resistant coating.

[0044] 2. Take 35g of bisp...

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Abstract

The invention relates to a wear-resistant epoxy resin coating material modified by high dispersibility of molybdenum disulfide and a preparation method thereof. The coating material comprises composition A and composition B, wherein the composition B is a curing agent, and the mass of the composition B is 5 to 30 percent of that of the composition A; and the composition A comprises the following components in percentage by mass: 25 to 45 percent of epoxy resin, 20 to 36 percent of solid lubricant, 1 to 4 percent of coupling agent, and 25 to 55 percent of organic solvent. The coating material improves the compatibility of the solid lubricant, namely the molybdenum disulfide and a bisphenol-A epoxy resin solution, solves the problem that the solid lubricant has poor dispersivity in the resin solution, and overcomes the defects that a polymeric solid lubricant coating has non-uniform concentration, more difficult thickness control, flawed coatings and so on. The preparation method for the coating material is simple and easy to operate.

Description

technical field [0001] The invention relates to an epoxy resin wear-resistant coating material and a preparation method thereof, in particular to a highly dispersed molybdenum disulfide modified epoxy resin wear-resistant coating material and a preparation method thereof. Background technique [0002] Solid lubrication technology is widely used in missile systems and aerospace vehicles, but the double working conditions of oil immersion first and oil loss after dry running, long-term dry running and continuous high-load working conditions all reflect harsh working conditions and high technical requirements. Therefore, the solid lubricating film is required to have high wear resistance. The polymer-based bonded solid lubricating film can meet the above requirements, but the resin-based bonding coating on the outer surface of the polymer-based bonded solid lubricating film composite film has solid lubricant precipitation, the shelf life of the paint is short, and the coating h...

Claims

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Application Information

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IPC IPC(8): C09D163/02C09D5/00C10M145/18C10M177/00
Inventor 郭强张卫东潘国梁刘海彬王娴娴
Owner SHANGHAI UNIV
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