Preparation method and application of oleic acid-modified copper sulphide nano-material

A nano-material and oleic acid modification technology, applied in the field of friction, can solve the problems of complicated preparation method and low effect of oleic acid modified CuS, achieve the effects of reducing friction coefficient and wear rate, improving friction and wear performance, and low cost

Inactive Publication Date: 2016-07-27
FUJIAN CHUANZHENG COMM COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Organic acids can be directly added to lubricating oil to improve the oil solubility of nano-additives, but the effect is much lower than that of in-situ synthesized organically modified nanomaterials.
At present, the preparation method of oleic acid modified CuS is relatively complicated, requiring oil bath and vacuum distillation or organic solvent

Method used

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  • Preparation method and application of oleic acid-modified copper sulphide nano-material
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  • Preparation method and application of oleic acid-modified copper sulphide nano-material

Examples

Experimental program
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Effect test

Embodiment 1

[0024] A preparation method of copper sulfide nanomaterial modified by oleic acid, specifically comprising the following steps:

[0025] (1) Weigh 0.015 moles of C 2 h 5 Dissolve NS in 70mL of water, then accurately measure 10ml of oleic acid in the thioacetamide solution, and stir evenly to obtain a mixed solution of thioacetamide and oleic acid;

[0026] (2) Weigh 0.01 moles of Cu(CH 3 COO) 2 ·H 2 O was dissolved in 70mL water to obtain copper acetate solution;

[0027] (3) In a water bath at 30°C, drop the copper acetate solution obtained in step (2) into the mixed solution of thioacetamide and oleic acid obtained in step (1), and stir for 10 hours;

[0028] (4) After the reaction, cool to room temperature, filter and dry, and collect the oleic acid-modified CuS nanomaterials.

Embodiment 2

[0030] A preparation method of copper sulfide nanomaterial modified by oleic acid, specifically comprising the following steps:

[0031] (1) Weigh 0.015 moles of C 2 h 5 Dissolve NS in 70mL of water, then accurately measure 10ml of oleic acid in the thioacetamide solution, and stir evenly to obtain a mixed solution of thioacetamide and oleic acid;

[0032] (2) Weigh 0.01 moles of Cu(CH 3 COO) 2 ·H 2 O was dissolved in 70mL water to obtain copper acetate solution;

[0033] (3) In a 70°C water bath, drop the copper acetate solution obtained in step (2) into the mixed solution of thioacetamide and oleic acid obtained in step (1), and stir for 10 hours;

[0034] (4) After the reaction, cool to room temperature, filter and dry, and collect the oleic acid-modified CuS nanomaterials.

Embodiment 3

[0036] (1) Weigh 0.015 moles of C 2 h 5 Dissolve NS in 70mL water to form a thioacetamide solution, then accurately measure 10ml of oleic acid in the thioacetamide solution, and stir evenly to obtain a mixed solution of thioacetamide and oleic acid;

[0037] (2) Weigh 0.01 moles of Cu(CH 3 COO) 2 ·H 2 O was dissolved in 70mL water to obtain copper acetate solution;

[0038] (3) Put the copper acetate solution in step (2) dropwise into the mixed solution of thioacetamide and oleic acid obtained in step (1), and after magnetic stirring for 10 minutes, divide the solution into two parts and transfer them into two 100ml In the reaction kettle, heat at 150°C for 10 hours;

[0039] (4) After the reaction, cool down to room temperature, filter and dry the reaction solution obtained in the two reaction kettles, and collect the oleic acid-modified CuS nanomaterials.

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Abstract

The invention discloses a preparation method and application of an oleic acid-modified copper sulphide nano-material.Copper acetate, thioacetamide and oleic acid serve as raw materials, and a water bath method or hydrothermal method is adopted to prepare the oleic acid-modified copper sulphide nano-material.The preparation method includes the steps that firstly, a thioacetamide and oleic acid mixed solution and a copper acetate solution are prepared; then, the copper acetate solution is dropwise added into the thioacetamide and oleic acid mixed solution, and a reaction is performed with the water bath method or hydrothermal method to obtain copper sulphide nano-rods.Compared with a CuS nano-material not modified with oleic acid, the oleic acid-modified copper CuS nano-material has the advantages that the wear rate is reduced to 3.05*10<-17>m<3>.N<-1>.m<-1> from 2.37*10<-16>m<3>.N<-1>.m<-1>, the friction coefficient is reduced to 0.0345 from 0.0618, the friction and wear performance of lubricating oil is greatly improved, the friction coefficient and the wear rate are effectively reduced, and the oleic acid-modified copper CuS nano-material can serve as a nano-lubricating oil additive.Besides, the preparation technology is simple, and the cost is low.

Description

technical field [0001] The invention belongs to the field of friction, and in particular relates to a preparation method and application of an oleic acid-modified copper sulfide nanometer material. Background technique [0002] Adding nano-materials to lubricating oil can improve the friction and wear performance of lubricating oil, because the nano-particles with small particle size are more likely to enter the friction surface, and can form a thicker surface film, so that the surface of the friction pair can be separated well, and the wear resistance can be improved. friction effect. Due to their high surface activity, nanoparticles can be directly adsorbed to the scratches or pits of abrasive parts to repair them. However, because the vast majority of nanomaterials are hydrophobic, how to organically modify nanomaterials to improve the oil solubility of nanomaterials, thereby improving the friction and wear properties of lubricating oils, has attracted extensive attentio...

Claims

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Application Information

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IPC IPC(8): C10M177/00C10M141/02C10N30/06C10N10/02
CPCC10M141/02C10M177/00C10M2201/065C10M2207/126C10N2010/02C10N2030/06
Inventor 陈丽娟
Owner FUJIAN CHUANZHENG COMM COLLEGE
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