Layered potassium calcium phosphate compounding lithium-base lubricating grease composition and preparation method of same

A technology based on lubricating grease and potassium calcium phosphate, which is applied in the direction of lubricating compositions, phosphorus compounds, chemical instruments and methods, etc., can solve the problems of impurity symbiosis, etc., and achieve the effects of mild conditions, abundant raw material sources, and simple synthesis methods

Active Publication Date: 2017-12-22
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual application process, there are requirements for the physical and chemical properties of solid lubricating materials (such as purity, particle size and distribution, shape, etc.), and the symbiosis of impurities in the mineral itself will bring negative effects. The method can effectively solve this problem, and there is no report on the artificial synthesis of this layered potassium calcium phosphate mineral material.

Method used

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  • Layered potassium calcium phosphate compounding lithium-base lubricating grease composition and preparation method of same
  • Layered potassium calcium phosphate compounding lithium-base lubricating grease composition and preparation method of same
  • Layered potassium calcium phosphate compounding lithium-base lubricating grease composition and preparation method of same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Add raw materials into a 30 mL polytetrafluoroethylene stainless steel kettle: 1.11 g calcium chloride, 1.74 g dipotassium hydrogen phosphate, and react in 10 mL aqueous solution. Temperature 100 ℃, react for 3 days, filter, wash with distilled water, and dry at room temperature to obtain layered potassium calcium phosphate CaKPO 4 ·H 2 O. figure 1 Be the XRD figure of this product.

[0030] Add 28.0 g of PAO9 and 9.0 g of 12-hydroxystearic acid into the fat-making kettle, heat up and melt, and slowly add lithium hydroxide aqueous solution (containing 1.5 g of lithium hydroxide) at a temperature of 105 °C. After the lithium hydroxide solution was added, the temperature rose rapidly to 170 °C to completely dehydrate the soap base, and the material was quickly cooled to 105 °C, 4.0 g of azelaic acid was added, stirred for 10 min, and lithium hydroxide aqueous solution (containing Lithium 1.5 g) to saponify azelaic acid, the temperature was raised to 170 °C and kept for...

Embodiment 2

[0035] Add 0.40 g of calcium acetate, 1.86 g of potassium chloride and 2.45 g of phosphoric acid into a 30 mL polytetrafluoroethylene stainless steel kettle, and react in 22.5 mL of water. Temperature 150 ℃, react for 2 days, filter, wash with distilled water, and dry at room temperature to obtain layered potassium calcium phosphate CaKPO 4 ·H 2 O.

[0036]Add 31.3 g of 100 SN and 4.0 g of stearic acid to the fat-making kettle, heat up and melt, and slowly add lithium hydroxide aqueous solution (containing 0.5 g of lithium hydroxide) at a temperature of 80 °C. After the lithium hydroxide solution was added, the temperature rose rapidly to 130 °C to completely dehydrate the soap base, and the material was rapidly cooled to 90 °C, and 1.0 g of adipic acid was added, stirred for 10 min, and then lithium hydroxide aqueous solution (containing Lithium 0.5 g) to saponify adipic acid, the temperature was raised to 130 °C and kept for 1 h to complete the dehydration, the temperature...

Embodiment 3

[0041] Add raw materials into a 30 mL polytetrafluoroethylene stainless steel kettle: 2.72 g calcium sulfate, 8.16 g potassium dihydrogen phosphate and 5.88 g potassium acetate, and react in 18 mL water. Temperature 25 ℃, react for 7 days, filter, wash with distilled water, and dry at room temperature to obtain layered potassium calcium phosphate CaKPO 4 ·H 2 O.

[0042] Add 29.0 g of liquid paraffin and 8.0 g of stearic acid to the fat-making kettle, heat up and melt, and slowly add lithium hydroxide aqueous solution (containing 1.0 g of lithium hydroxide) at a temperature of 100 °C. After the lithium hydroxide solution was added, the temperature rose rapidly to 150 °C to completely dehydrate the soap base. The material was quickly cooled to 100 °C, 3.0 g of adipic acid was added, stirred for 10 min, and lithium hydroxide aqueous solution (containing hydroxide Lithium 1.0 g) to saponify adipic acid, raise the temperature to 150°C and keep for 1 h to complete the dehydration...

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Abstract

The invention discloses a layered potassium calcium phosphate compounding lithium-base lubricating grease composition and a preparation method of same. The composition is composed of, by weight, 74.0-98.95 parts of basic composite lithium-base lubricating grease, 1.0-10.0 parts of layered potassium calcium phosphate (CaKPO4.H2O), 0.05-5.0 parts of an antioxidant, 0-6.0 parts of an anti-rust agent and 0-5.0 parts of an extreme pressure agent. The preparation method includes the steps of: stirring and mixing the basic composite lithium-base lubricating grease, the CaKPO4.H2O, the antioxidant, the anti-rust agent and the extreme pressure agent for 1-12 h at room temperature to 250 DEG C; and grinding and homogenizing the mixture with a three-roller machine or a high-pressure homogenizer for 0.5-3 h to homogenize the mixture, thus producing the compounded lithium-base lubricating grease composition. The compounded lithium-base lubricating grease, with the CaKPO4.H2O as a solid lubricating additive, has excellent anti-wear and friction reducing capability under extreme pressure bearing.

Description

technical field [0001] The invention relates to a lithium-composite grease with excellent anti-wear properties, a grease solid lubricating additive and a preparation method thereof, belonging to the technical field of grease and its additive preparation, in particular to a layered potassium calcium phosphate CaKPO 4 ·H 2 O as a solid lubricating additive lithium complex grease and a preparation method thereof. Background technique [0002] Grease is an important material that cannot be ignored in the industrial field. my country's economy is developing rapidly at this stage, and many large-scale heavy-duty machinery and precision electronic equipment are used in industry. Many parts of these equipment need to use grease. Appropriate lubricating grease can effectively reduce the wear and tear of mechanical and electronic equipment, improve operating efficiency, and reduce operating energy consumption. It is a functional fine chemical with the characteristics of "energy savi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10M177/00C10M125/24C01B25/45C10N50/10C10N30/06
CPCC01B25/45C10M125/24C10M169/04C10M177/00C10M2201/085C10M2205/0206C10M2205/16C10M2207/026C10M2207/123C10M2207/126C10M2207/127C10M2207/128C10M2215/064C10M2215/223C10M2219/022C10M2219/108C10M2229/0415C10N2010/02C10N2010/04C10N2030/06C10N2050/10
Inventor 张效胜董晋湘代莹静牛文星徐红
Owner TAIYUAN UNIV OF TECH
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