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Surface modified nanometer material serving as lubricating oil additive as well as preparation method and application thereof

A lubricating oil additive and surface modification technology, applied in the directions of additives, lubricating compositions, petroleum industry, etc., can solve the problem of inability to realize the activation and modification of the surface modifier and the powder to be treated, and the burning and deterioration of the organic material of the surface modifier. and damage to achieve the effect of promoting surface treatment and enhancing contact activity

Active Publication Date: 2014-05-21
麦卡伦(厦门)润滑油有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, there are great technical difficulties in preparing surface-modified nanopowders by using dielectric barrier discharge-assisted mechanical ball milling technology.
It is extremely important to precisely control the process parameters of dielectric barrier discharge assisted mechanical ball milling and the temperature in the ball mill tank. When the discharge is too strong, the high temperature will cause the burning, deterioration and destruction of the organic material of the surface modifier, and when the discharge is too weak, the surface cannot be achieved. Activation and modification of modifier and powder to be treated

Method used

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  • Surface modified nanometer material serving as lubricating oil additive as well as preparation method and application thereof
  • Surface modified nanometer material serving as lubricating oil additive as well as preparation method and application thereof
  • Surface modified nanometer material serving as lubricating oil additive as well as preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0059] Such as figure 1 As shown, the dielectric barrier discharge plasma-assisted mechanical ball milling device of the present invention includes a motor 1, an elastic coupling 2, an exciter 3, a base 4, a bracket 5, a ball mill tank 6, a cooling liquid chamber 7, and an electrode rod 8 , Grinding ball 9, spring 10, dielectric barrier discharge power supply 11, constant temperature bath 12. The ball mill pot 6 is seated on the bracket 5. When the motor 1 drives the elastic coupling 2 to rotate, the vibrator 3 rotates, and drives the bracket 5 and the ball mill pot 6 to vibrate on the spring 10. Vibration is generated in the tank 6, so as to perform mechanical impact, shearing and other effects on the powder to be processed in the tank. An electrode rod 8 is installed in the ball mill tank 6, and the dielectric barrier discharge strength in the ball mill tank 6 can be controlled by adjusting the discharge parameter through the dielectric barrier discharge power supply 11, so...

Embodiment 2

[0093] Adopt the device of embodiment 1, process condition is basically identical with embodiment 1, difference is:

[0094] 1. The powder to be treated in step (2) is 500g of TiO 2 , the surface modification agent is the surface modification system that the benzoyl peroxide of 20g and polystyrene form, and wherein the mass ratio of benzoyl peroxide and polystyrene is 1:3;

[0095] 2. In step (5), adjust the discharge parameters as follows: the voltage is 10kV, and the frequency is 20kHz;

[0096] 3. Step (6) Dielectric barrier discharge plasma assisted mechanical ball milling for 5 hours.

[0097] After dielectric barrier discharge plasma-assisted mechanical ball milling, a powdery surface-modified nanomaterial is obtained, which is denoted as P-2a.

Embodiment 3

[0109] Adopt the device of embodiment 1, process condition is basically identical with embodiment 1, difference is:

[0110] 1. The powder to be treated in step (2) is 500g of metal Cu powder, and the surface modifier is 15g of stearic acid;

[0111] 2. In step (3), there is 0.1MPa argon in the ball milling tank 6. The specific operation steps are: evacuate the airtight ball milling tank 6 through the air valve 6-8, and then pass the discharge atmosphere medium through the air valve 6-8 Argon, until the gas pressure in the ball milling tank 6 is 0.1Mpa;

[0112] 3. Step (4) Control the circulating coolant temperature to -20°C;

[0113] 4. In step (5), adjust the discharge parameters as follows: the voltage is 15kV, and the frequency is 22kHz;

[0114] 5. In step (6), the dielectric barrier discharge plasma-assisted mechanical ball milling time is 10 hours;

[0115] After dielectric barrier discharge plasma-assisted mechanical ball milling, a powdery surface-modified nanomat...

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Abstract

The invention belongs to the technical fields of a nanometer material and lubricating oil, and discloses a surface modified nanometer material serving as a lubricating oil additive as well as a preparation method and an application thereof. The preparation method mainly comprises the following steps: putting a mixture of powder to be treated and a surface modification agent as well as grinding balls in a ball-milling tank of an improved dielectric barrier discharge plasma assisted mechanical milling device, feeding a discharge atmosphere medium, controlling the temperature of the ball-milling tank, adjusting discharge parameters, and starting the mechanical milling device so as to carry out dielectric barrier discharge plasma assisted mechanical milling, thus obtaining the surface modified nanometer material. The obtained powdery surface modified nanometer material can be added to the lubricating oil so as to improve the performance of the lubricating oil. The preparation method is simple to operate and good in controllability; the obtained surface modified nanometer material is small in particle size, high in activity, good in surface modification and extremely easy to deposit, flatly spread and diffuse on a mechanical friction surface and has excellent dispersion property in the lubricating oil, so that the friction of mechanical movement parts is reduced, and the worn surface is repaired.

Description

technical field [0001] The invention belongs to the technical fields of nanomaterial preparation technology and mechanical lubricating oil, and in particular relates to a surface-modified nanomaterial used as a lubricating oil additive, a preparation method and application thereof. Background technique [0002] Lubricating oil is an important guarantee for the normal operation of mechanical equipment. Lubricating oil additives are the essence of various high-grade lubricating oils. It can endow some special properties that lubricating oil itself does not have, such as reducing the friction coefficient, improving anti-wear performance, and repairing worn surfaces. Wait. The application of nanomaterials as additives in lubrication systems is a new research field. Due to the characteristics of large specific surface area, high diffusivity, low sinterability, and lower melting point of nanomaterials, the new lubricating oil additive materials prepared on the basis of nanomateri...

Claims

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Application Information

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IPC IPC(8): C09C1/36C09C1/62C09C3/04C09C3/10C09C3/08C10M125/10C10M125/04C10N30/06
Inventor 戴乐阳孟荣刚陈景锋林少芬
Owner 麦卡伦(厦门)润滑油有限公司
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