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Oily nano super-hard powder suspension and preparation method thereof

A suspension and nanotechnology, applied in the petroleum industry, additives, lubricating compositions, etc., can solve problems such as corrosion of parts and unfavorable environmental protection

Inactive Publication Date: 2011-02-09
天津格林润保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Extreme pressure anti-wear agents containing phosphorus, sulfur and chlorine are commonly used, but this will corrode the machine parts and is not conducive to environmental protection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0037] The invention also discloses a preparation method of oily nano superhard powder suspension, the method comprises the following steps:

[0038] Step 1, using one method or a combination of several methods among magnetic stirring, mechanical stirring and ultrasonic dispersion, the nano superhard powder with a mass percentage of 0.001-15% and the detergent with a mass percentage of 0.005-15% Uniformly mixed with a dispersant with a mass percentage of 0.005-15% to form a nano-superhard powder solution;

[0039] Step 2, using one method or a combination of methods among magnetic stirring, mechanical stirring and ultrasonic dispersion, mixing the suspending agent with a mass percentage of 0.005-15%, and the balance being mineral oil, hydrocarbon synthetic oil, One or several mixtures of ester synthetic oil and hydroisomerized oil are uniformly mixed into a suspending agent solution;

[0040] Step 3, stirring and mixing the nano superhard powder solution in step 1 and the sus...

Embodiment 1

[0045] Embodiment 1: get particle size distribution in 1.5 grams of nano-diamond powder of 2~8nm, 8 grams of T-104 low alkali value synthetic calcium sulfonate, 10 grams of T-154 bis-succinimide ashless dispersant, stir with magnetic stirrer 60 minutes, ultrasonic ultrasonic dispersion for 30 minutes, mixed into nano superhard powder solution. With 2 grams of organic bentonite, 78.5 grams of kinematic viscosity at 40°C is 60-76mm 2 / s The mineral oil is dispersed and mixed evenly, stirred with a magnetic stirrer for 30 minutes, ultrasonically dispersed for 30 minutes, and mixed into a suspending agent solution. The diamond solution and the suspending agent solution were stirred with a magnetic stirrer for 30 minutes and mixed evenly, and then ultrasonically dispersed for 30 minutes. An oily nano superhard powder suspension with a diamond powder content of 1.5% can be obtained by circulating treatment with a high-pressure homogenizer for 1 hour.

Embodiment 2

[0046] Embodiment 2: get particle size distribution in 2~8nm nano-diamond powder 0.5 gram, particle size distribution in 5~20nm nano-polycrystalline diamond powder 1.5 grams (purchased by Beijing Guoruisheng Technology Co., Ltd.), T-104 low alkali value synthetic sulfonic acid 6 grams of calcium, 6 grams of T-106 synthetic calcium sulfonate with high base value, 10 grams of T-154 bis-succinimide ashless dispersant, stirred with a magnetic stirrer for 60 minutes, ultrasonically dispersed for 30 minutes, and mixed into a nanometer super Hard powder solution. 2 grams of organic bentonite, 76 grams of 40 ℃ kinematic viscosity is 80 ~ 100mm 2 / s The mineral oil is dispersed and mixed evenly, stirred with a magnetic stirrer for 30 minutes, ultrasonically dispersed for 30 minutes, and mixed into a suspending agent solution. The diamond solution and the suspending agent solution were stirred with a magnetic stirrer for 30 minutes and mixed evenly, and then ultrasonically dispersed fo...

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Abstract

The invention provides oily nanometer super-hard powder suspension and a preparation method thereof. The suspension mainly comprises nano diamond powder, nano boron nitride, a suspending agent, a detergent dispersant, mineral oil and synthetic oil. In a preparation process, the nano diamond powder, the nano boron nitride, the suspending agent, the detergent dispersant, the mineral oil and the synthetic oil are mixed well, dispersed uniformly by a stirrer or ultrasonic waves and homogenized by a high-pressure homogenizing machine. Suspension grinding and polishing liquid is kept in a stable and uniform state for a long time and chromatography and failure phenomena are prevented. The suspension can be prepared into lubricating oil for vehicles, industrial lubricating oil and the like and is widely used for lubricating and maintaining mechanical equipment such as internal combustion engines, gears, bearings and the like.

Description

technical field [0001] The invention relates to an oily nano superhard powder suspension used for lubricating internal combustion engines, gears, bearings and other mechanical equipment and a preparation method thereof. Background technique [0002] In order to play the role of anti-friction and wear reduction, some solid particles can also be added to the lubricating oil. Such as graphite, molybdenum disulfide, Teflon, etc., their particle size is micron or submicron. Due to their unstable state in oil, their precipitates are likely to cause blockage of oil passages and accelerate the formation of sludge, so they are rarely recommended for use at present. [0003] With the heating up of nanotechnology, the work of adding nanomaterials to lubricating oil has done some exploration in recent years. For example, nanometer metal particles (Cu, Fe, Ni, Co, etc.) and nanometer SiO2, Ti3(BO3)2, etc. are added as extreme pressure antiwear agents. However, the particle size of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M177/00C10M141/06C10M161/00C10M141/08C10N40/25C10N40/02C10N40/04
Inventor 陈玉祥
Owner 天津格林润保科技有限公司
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