Lubricating oil compound nanometer antiwear agent preparation method

A nano-anti-wear and lubricating oil technology, which is applied in the direction of lubricating compositions, additives, petroleum industry, etc., can solve the problems of easy release and corrosion of metals, etc., and achieve the effects of prolonging life, low cost, and simple preparation steps

Inactive Publication Date: 2017-03-22
CHANGZHOU YAHUAN ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: Aiming at the problem that the traditional anti-wear agent is very easy to release corrosive free chlorine and corrode metal when it encounters water or friction to generate high temperature, the present invention first uses fresh pig liver as raw material, and carries out Extract to obtain pig liver extract, then mix ammonium paramolybdate solution and thiourea solution, and add hydrochloric acid dropwise to adjust the pH, heat and stand for filtration, and dry to obtain nanoparticles, which are mixed with trimethylol Aminomethane solution and absolute ethanol are mixed and dispersed to obtain a uniform suspension. Finally, dopamine is used to adhere to the surface of nanoparticles and the pig liver extract is adsorbed on the surface of the dopamine shell to form a double shell, which can be obtained after filtration and drying. Lubricating oil composite nano antiwear agent

Method used

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Examples

Experimental program
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Effect test

example 1

[0019] First, weigh 200g of fresh pork liver, wash it with deionized water for 5 times, then put the cleaned pork liver in an oven, and dry it at 75°C for 8 hours, then transfer the dried pork liver into a pulverizer , crushed and passed through an 80-mesh sieve to obtain pig liver powder, then pour the obtained pig liver powder into a beaker filled with 2L acetone, let it stand for 45min, filter, remove the filtrate, and collect the filter residue; transfer the above-mentioned obtained filter residue into a 1400mL Put the beaker with a mass fraction of 90% ethanol solution, then place the beaker in an ultrasonic oscillator, extract for 45 minutes at a temperature of 50°C and a power of 300W, filter, remove the filter residue, and transfer the obtained filtrate into a distillation flask. Distill under reduced pressure for 45 minutes to obtain the pig liver extract, which is set aside; successively measure 300 mL of 3% ammonium paramolybdate solution and 400 mL of 4% thiourea so...

example 2

[0022]First weigh 100g of fresh pork liver, wash it with deionized water for 3 times, then place the cleaned pork liver in an oven, dry it at 70°C for 6 hours, and then transfer the dried pork liver into a pulverizer , crushed and passed through a 60-mesh sieve to obtain pig liver powder, then pour the obtained pig liver powder into a beaker filled with 1L of acetone, let it stand for 30min, filter, remove the filtrate, and collect the filter residue; The mass fraction is 85% ethanol solution in a beaker, and then the beaker is placed in an ultrasonic oscillator, at a temperature of 45°C and a power of 200W, extract for 30 minutes, filter, remove the filter residue, and transfer the obtained filtrate into a distillation flask. Distill under reduced pressure for 45 minutes to obtain the pig liver extract, which is set aside; successively measure 300 mL of 3% ammonium paramolybdate solution and 400 mL of 4% thiourea solution, and add them to the reaction kettle at a temperature o...

example 3

[0025] First weigh 150g of fresh pork liver, wash it with deionized water for 4 times, then place the cleaned pork liver in an oven, dry it at 72°C for 7 hours, and then transfer the dried pork liver into a pulverizer , crushed and passed through a 70-mesh sieve to obtain pig liver powder, then pour the obtained pig liver powder into a beaker filled with 1-2L acetone, let it stand for 40 minutes, filter, remove the filtrate, and collect the filter residue; Put 1300mL of ethanol solution with a mass fraction of 87% in a beaker, then place the beaker in an ultrasonic oscillator, extract for 40min at a temperature of 47°C and a power of 250W, filter, remove the filter residue, and transfer the obtained filtrate into a distillation flask 2% ammonium paramolybdate solution and 350mL 3% thiourea solution were taken successively and added to the reaction kettle at a temperature of 42°C. , at a rotation speed of 350r / min, stir and mix for 17min, then dropwise add hydrochloric acid wit...

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Abstract

The invention relates to a lubricating oil compound nanometer antiwear agent preparation method, belonging to the technical field of lubricating oil additive preparation. The preparation method comprises the following steps: first, by taking fresh pork livers as raw materials, extracting the same to obtain a pork liver extract; mixing an ammonium paramolybdate solution and a thiourea solution, dropwise adding hydrochloric acid to adjust the pH (Potential Of Hydrogen), heating, standing, filtering and drying to obtain nanometer particles; mixing and dispersing the nanometer particles with a tris(hydroxymethyl)methyl aminomethane solution and absolute ethyl alcohol to obtain uniform suspension liquid; finally, attaching to the surfaces of the nanometer particles by using dopamine and adsorbing the pork liver extract to the surface layer of the shell of the dopamine to obtain a double-layer shell, then filtering and drying to obtain the lubricating oil compound nanometer antiwear agent. The lubricating oil compound nanometer antiwear agent prepared according to the method cannot release corrosive matters during using, and cannot corrode metal, so that the service life of a used part is prolonged; the lubricating oil compound nanometer antiwear agent has excellent antiwear performance, and the wear spot diameter is less than 0.40mm.

Description

technical field [0001] The invention relates to a preparation method of a lubricating oil composite nano-antiwear agent, belonging to the technical field of lubricating oil additive preparation. Background technique [0002] In the traditional lubrication theory, lubrication is divided into liquid lubrication and boundary lubrication. The two metal surfaces that are in relative motion are completely separated by lubricating oil film, and there is no direct contact between the metals. This lubrication state is called liquid lubrication; as the load increases, the thickness of the oil film between the metal surfaces gradually decreases. When the load increases to To a certain extent, the continuous oil film is broken by the peaks of the metal surface, and direct contact between the metal surfaces is locally generated. This lubrication state is called boundary lubrication. In boundary lubrication, when the metal surface only bears a moderate load, if there is an additive that ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M163/00C10N30/06C10N30/12
CPCC10M163/00C10M2201/08C10M2215/042C10M2219/064C10N2030/06C10N2030/12C10N2030/64
Inventor 高玉梅薛荣飞许洪祥
Owner CHANGZHOU YAHUAN ENVIRONMENTAL PROTECTION TECH
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