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Surface modification nanometer copper particle and preparation method thereof

A technology of surface modification nanometer and production method, which is applied in the field of surface modification nanometer copper particle and its production

Inactive Publication Date: 2013-08-28
NANTONG ZHONGCHENG BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the lubricating oil is emulsified or its anti-emulsification is poor, it will lose fluidity (W / O emulsion will double the viscosity of the oil) and loss of lubricity, and it will also cause metal corrosion and wear

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Dissolve 0.01 mol of copper sulfate in 100 mL of distilled water, add 5 mL of ammonia solution to obtain a uniform and transparent blue solution, mix 0.1 mol of hydrazine hydrate and 0.01 mol of alkyl polyoxyethylene ether phosphate, and 100 mL of benzene, slowly Add dropwise to the above blue solution, bubbles will be generated, react under stirring for 1-3 h, distill off water and benzene to obtain a viscous liquid, which is surface-modified nano-copper particles.

Embodiment 2

[0014] Dissolve 0.04 mol of copper hydrochloride in 500 mL of distilled water, add 15 mL of ammonia solution to obtain a uniform and transparent blue solution, mix 0.3 mol of sodium borohydride, 0.01 mol of alkyl polyoxyethylene ether phosphate, and 200 mL of toluene, Slowly add it dropwise to the above blue solution, bubbles will be generated, react under stirring for 1-3 h, distill off water and benzene to obtain a viscous liquid, which is surface-modified nano-copper particles.

Embodiment 3

[0016] Dissolve 0.04 mol of copper nitrate in 500 mL of distilled water, add 15 mL of ammonia solution to obtain a uniform transparent blue solution, mix 0.5 mol of hydrazine hydrate and 0.2 mol of sodium borohydride and 0.06 mol of isooctyl alcohol polyoxyethylene polyoxy Allyl ether phosphate and 300 mL xylene are mixed evenly, slowly added dropwise to the above blue solution, bubbles are generated, reacted for 1-3 hours under stirring, and distilled to remove water and benzene to obtain a viscous liquid, which is the surface modified nano copper particles.

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PUM

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Abstract

The invention relates to a surface modification nanometer copper particle and a preparation method thereof. The preparation method comprises the following steps of: firstly preparing a copper salt water solution with the concentration of 0.05-0.2 mol / L; adding an ammonia water solution; then sufficiently mixing the copper salt water solution and a mixed solution of a reducing agent, a surface modification agent with anti-emulsification property and an organic solvent to react for 1-3 hours under the condition of alkaline (pH is 8-11); and then concentrating and separating to obtain the surface modification nanometer copper particle. The preparation method has the advantages of simple preparation process, easiness for low-cost raw material obtaining, low cost, high yield and suitability for large-scale production and preparation.

Description

technical field [0001] The invention relates to a production method, in particular to a surface-modified nano-copper particle and a production method thereof. Background technique [0002] Nanomaterials show unique advantages in the field of tribology because of their special nano-effects and high surface activity. In particular, soft metal nanoparticles such as copper and its alloys have outstanding anti-friction, anti-wear and self-repair functions. As a self-repairing nano-lubricating and anti-wear material for new high-performance lubricating grease additives, it can repair the worn parts of mechanical equipment friction pairs. Self-healing, and has significant anti-wear and energy-saving effects. However, the poor oxidation stability of nano-copper materials, poor dispersion stability and monodispersity in oily media limit their wide application, so the preparation of nano-copper particles with good chemical stability and good dispersibility in oily media and Making i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/24B22F1/00
Inventor 姚明忠张治军李小红张晟卯陈金亮孙柳柳
Owner NANTONG ZHONGCHENG BIOTECH
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