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Modified molybdenum disulfide composition and modification method

A technology of molybdenum disulfide and nano-molybdenum disulfide, which can be used in lubricating compositions, dyed low-molecular-weight organic compound treatment, dyed high-molecular-weight organic compound treatment, etc. Promotion and application, etc., to achieve the effects of low cost, good dispersion, and a wide range of sources

Inactive Publication Date: 2013-06-19
惠州市润慧化工科技发展有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In the above research on molybdenum disulfide, due to the lack of modification of molybdenum disulfide, the dispersion of nano-molybdenum disulfide may be uneven, or the use of toxic raw materials may bring safety hazards and other reasons, so it cannot be widely used.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Add 10 kg of absolute ethanol and 0.1 kg of deionized water into the reaction kettle to obtain a mixture of absolute ethanol, then add 1 kg of sodium dodecylbenzenesulfonate, and then add 0.5 kg of nanomolybdenum disulfide to obtain a reaction mixture . Place the above reaction solution in an ultrasonic instrument for ultrasonic dispersion for 15 minutes, then add the mixed solution to a condensing reflux device, stir and react at a constant temperature of 70°C for 2 hours, filter the obtained reaction solution, and wash the residue 3 times with absolute ethanol Afterwards, vacuum drying was used to obtain black solid particles. Ultrasonically disperse the black modified nano-molybdenum disulfide powder in 5 kg of absolute ethanol to obtain a modified molybdenum disulfide ethanol solution, and then add this solution into the synthetic base oil polyalphaolefin (PAO), stir evenly, and modify Molybdenum disulfide can be stably and uniformly dispersed in the oil phase.

Embodiment 2

[0025] Add 10 kg of absolute ethanol and 0.1 kg of deionized water into the reaction kettle to obtain a mixture of absolute ethanol, then add 1 kg of dodecyl dimethyl benzyl ammonium chloride, and then add 0.5 kg of nanomolybdenum disulfide to obtain a reaction mixture. Place the above reaction solution in an ultrasonic instrument for ultrasonic dispersion for 15 minutes, then add the mixed solution to a condensing reflux device, stir and react at a constant temperature of 70°C for 2 hours, filter the obtained reaction solution, and wash the residue 3 times with absolute ethanol Afterwards, vacuum drying was used to obtain black solid particles. Ultrasonically disperse the black modified nano-molybdenum disulfide powder in 5 kg of absolute ethanol to obtain a modified molybdenum disulfide ethanol solution, and then add this solution to the synthetic base oil polyalphaolefin (PAO), stir evenly, and modify Molybdenum disulfide can be stably and uniformly dispersed in the oil ph...

Embodiment 3

[0027] 10 kg of absolute ethanol and 0.1 kg of deionized water were added into the reaction kettle to obtain a mixture of absolute ethanol, then 1 kg of castor oil polyoxyethylene ether was added, and then 0.5 kg of nanomolybdenum disulfide was added to obtain a reaction mixture. Place the above reaction solution in an ultrasonic instrument for ultrasonic dispersion for 15 minutes, then add the mixed solution to a condensing reflux device, stir and react at a constant temperature of 70°C for 2 hours, filter the obtained reaction solution, and wash the residue 3 times with absolute ethanol Afterwards, vacuum drying was used to obtain black solid particles. Ultrasonically disperse the black modified nano-molybdenum disulfide powder in 5 kg of absolute ethanol to obtain a modified molybdenum disulfide ethanol solution, and then add this solution to the synthetic base oil polyalphaolefin (PAO), stir evenly, and modify Molybdenum disulfide can be stably and uniformly dispersed in t...

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Abstract

The invention discloses a modified molybdenum disulfide composition and a modification method, the modified molybdenum disulfide composition comprises the following raw materials by weight: 74-94% of base oil, 5-25% of molybdenum disulfide and 1-3% of modifier, and the base oil is Polyalphaolefins- PAOs, ester oil and mineral oil. According to the invention, modified molybdenum disulfide takes nanoscale molybdenum disulfide as a matrix of the modified material, the modifier can modify the surface of the molybdenum disulfide powder, so that the molybdenum disulfide powder has good dispersibility, stability and lubricity in the lubricating oil and lubricating grease. A simple technology is employed for modifying, the method is simple, and the production energy consumption can be saved.

Description

technical field [0001] The invention relates to a method for modifying nano molybdenum disulfide. Background technique [0002] Molybdenum disulfide is an important solid lubricant, which is usually a solid powder made of natural molybdenum concentrate powder after chemical purification and changing its molecular structure. Molybdenum disulfide has a layered structure, the appearance is gray-black, dull, and it has a fatty texture when rubbed with fingers. Its molecular structure is hexagonal layered crystals. It does not react with metal surfaces and rubber materials under normal conditions; it is chemically stable. Good resistance, except for aqua regia, hot concentrated sulfuric acid, boiling hydrochloric acid, nitric acid, it can resist corrosion of most acids and alkalis. The adhesion and binding force of sulfur atoms in molybdenum disulfide to the metal surface is quite strong. And can form a firm film, capable of high contact pressure and high friction speed. It is...

Claims

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Application Information

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IPC IPC(8): C10M125/22C10M177/00C09C1/00C09C3/08C09C3/10C10N30/04C10N30/06
Inventor 曾晖李辉华刘海峰纪红兵
Owner 惠州市润慧化工科技发展有限公司
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