CN113969208A - Wear-resistant water-based hydraulic oil and preparation method thereof - Google Patents
Wear-resistant water-based hydraulic oil and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M173/00—Lubricating compositions containing more than 10% water
- C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/04—Elements
- C10M2201/041—Carbon; Graphite; Carbon black
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/065—Sulfides; Selenides; Tellurides
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/283—Esters of polyhydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/045—Metal containing thio derivatives
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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Abstract
The invention relates to anti-wear water-based hydraulic oil and a preparation method thereof, belonging to the technical field of water-based hydraulic oil preparation. According to the invention, fatty acid monoglyceride and ammonium diphosphorus pentasulfide are used as raw materials to prepare the self-made antiwear additive, then the carbon nano tube is used as the raw material, the modified carbon nano tube antiwear additive is obtained after vulcanization modification, and finally the modified carbon nano tube antiwear additive and the self-made antiwear additive are compounded and added into other raw materials to finally prepare the water-based hydraulic oil.
Description
Technical Field
The invention relates to anti-wear water-based hydraulic oil and a preparation method thereof, belonging to the technical field of water-based hydraulic oil preparation.
Background
The hydraulic oil is a hydraulic medium used by a hydraulic system utilizing liquid pressure energy, plays roles of energy transfer, abrasion resistance, system lubrication, corrosion resistance, rust resistance, cooling and the like in the hydraulic system, firstly, the requirements of a hydraulic device on liquid viscosity at working temperature and starting temperature are met for the hydraulic oil, as the viscosity change of the lubricating oil is directly related to hydraulic action, transfer efficiency and transfer precision, the viscosity-temperature performance and the shear stability of the oil are also required to meet various requirements provided by different purposes, the hydraulic oil has various types and different classification methods, and for a long time, the hydraulic oil is also classified by using the purposes and is classified according to the type, the chemical component and the flammability of the oil, and the classification methods only reflect the earnest injection of the oil, but lack systematicness and are difficult to know the interrelation and development among the oil products.
Along with the development and the large-scale use of hydraulic machinery and the development of human beings to regions with severe environment, a hydraulic system faces more tests from working environment, so that the requirement of the hydraulic system on hydraulic oil is higher and higher, the existing hydraulic oil cannot meet the requirement of the hydraulic machinery, the wear resistance is better than that of the existing hydraulic oil, and the hydraulic machinery needs to be frequently changed when in use so as to ensure normal work.
In view of the above-mentioned drawbacks, the present inventors have made active research and innovation to create a wear-resistant aqueous hydraulic oil and a preparation method thereof, so that the hydraulic oil has industrial utility value.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide anti-wear water-based hydraulic oil and a preparation method thereof.
The invention relates to antiwear aqueous hydraulic oil which comprises the following raw materials in parts by weight:
30-34 parts of pentaerythritol oleate;
15-19 parts of glycol polyether;
1-3 parts of polyethylene glycol;
1-2 parts of fatty alcohol-polyoxyethylene ether;
1-2 parts of a self-made antiwear additive;
40-44 parts of water;
0.5-0.9 parts of pigment;
the self-made antiwear additive is prepared by reacting fatty acid monoglyceride with phosphorus pentasulfide, butanol, zinc oxide, ammonia water and sulfur. The fatty acid monoglyceride used in the invention contains alcoholic hydroxyl group which reacts with phosphorus pentasulfide, the fatty acid monoglyceride reacts with phosphorus pentasulfide to obtain a modified product of hexaphosphoric acid, then the modified product of hexaphosphoric acid reacts with zinc oxide to carry out zinc saponification, and double bonds on a carbon chain of the zinc pentasulfide are added by a vulcanizing agent to finally obtain a self-made antiwear additive with extreme pressure, and polar atoms in the self-made antiwear additive and the surface of a metal friction pair are subjected to semi-chemical and semi-physical adsorption to form a layer of reaction film with coexisting organic compounds and inorganic compounds, so that the bearing capacity of hydraulic oil can be effectively improved; zinc atoms in the decomposition process can be alloyed with iron to form a solid solution, so that the abrasion resistance of the surface of the friction pair is enhanced, and in the friction process, the decomposition product of the self-made abrasion-resistant additive reacts with iron and oxygen to form a polymeric film consisting of compounds such as phosphate, iron sulfide and the like, so that the lubricating effect is good, and the antifriction performance of the oil product is improved;
further, the coating also comprises the following components in parts by weight:
2-4 parts of a modified carbon nanotube antiwear agent;
the modified carbon nano tube antiwear agent is prepared by mixing and reacting sodium sulfide, water and carbon nano tubes. According to the invention, the sodium sulfide solution is utilized to carry out vulcanization modification on the carbon nano tube to obtain the modified carbon nano tube antiwear agent, and the antiwear agent disclosed by the invention can be effectively adsorbed on the surface of a friction pair in the using friction process, so that the direct contact of the two friction pairs is blocked, the two friction pairs slide on a nano sulfide adsorption film, the friction and the abrasion of the friction pairs are effectively reduced, and the antifriction performance of an oil product is improved; in addition, the carbon nano tube can fill up microscopic pits, repair the surface of a friction pair, reduce the roughness of the relative surface, increase the stress area of friction force and reduce the abrasion of the friction pair, has a graphite interlayer sliding structure, has weak bonding force between layers under the action of shearing force, and can generate relative sliding to play roles of lubricating and reducing friction; the binding force in the layer is relatively large, and the load vertical to the base surface can be supported, so that the bearing capacity of the oil product is improved; in addition, the self-made antiwear additive and the modified carbon nano tube antiwear agent are used together, the filling and leveling effects of the carbon nano tube can promote the generation of a self-made antiwear additive extreme pressure film and the iron sulfide, the abrasive wear of the friction pair surface is greatly reduced, the bearing capacity of hydraulic oil can be effectively improved, the self-made antiwear additive extreme pressure film and the iron sulfide generate a synergistic effect, and the antiwear effect of the hydraulic oil is improved.
Further, the paint comprises the following raw materials in parts by weight:
32 parts of pentaerythritol oleate;
17 parts of ethylene glycol polyether;
2 parts of polyethylene glycol;
2 parts of fatty alcohol-polyoxyethylene ether;
2 parts of self-made antiwear additive;
3 parts of a modified carbon nanotube antiwear agent;
42 parts of water;
0.7 part of pigment.
A preparation method of antiwear aqueous hydraulic oil comprises the following specific preparation steps:
(1) weighing 30-34 parts of pentaerythritol oleate, 15-19 parts of glycol polyether, 1-3 parts of polyethylene glycol, 1-2 parts of fatty alcohol-polyoxyethylene ether, 1-2 parts of self-made anti-wear additive, 2-4 parts of modified carbon nanotube anti-wear agent, 40-44 parts of water and 0.5-0.9 part of pigment in parts by weight;
(2) firstly, adding glycol polyether, polyethylene glycol and fatty alcohol-polyoxyethylene ether into pentaerythritol oleate, stirring for 20min, then adding a self-made anti-wear additive and a modified carbon nanotube anti-wear agent, stirring for 10min, then adding water and a pigment, continuously stirring for 50min, and then discharging to obtain the anti-wear water-based hydraulic oil.
Further, the preparation steps of the self-made antiwear additive are as follows:
(1) mixing fatty acid monoglyceride and phosphorus pentasulfide according to a mass ratio of 5:1, then putting the mixture into a reaction kettle, adding butanol with the mass of 3 times of the phosphorus pentasulfide into the reaction kettle, heating the mixture to 90-100 ℃, stirring the mixture for reaction for 5-7 hours, filtering the mixture, and separating the mixture to obtain reaction filtrate;
(2) mixing the reaction filtrate, zinc oxide and 18% ammonia water in a mass ratio of 47:13:2, adding the mixture into a reaction kettle, heating to 85-90 ℃, stirring for reaction for 6-8 hours, adding 10% by mass of sulfur into the reaction kettle after the reaction is finished, reacting for 30-40 min at 170-180 ℃, filtering after the reaction is finished, and separating to obtain a filtrate, namely the self-made wear-resistant additive.
Further, the preparation steps of the modified carbon nanotube antiwear agent are as follows:
mixing sodium sulfide and water according to a mass ratio of 1:8 to obtain a sodium sulfide solution, mixing the sodium sulfide solution and the carbon nano tube according to a mass ratio of 10:1, putting the mixture into an ultrasonic oscillator, carrying out ultrasonic oscillation dipping reaction for 3-5 hours at a frequency of 40-50 kHz, and filtering and separating to obtain filter residues to obtain the modified carbon nano tube antiwear agent.
By the scheme, the invention at least has the following advantages:
(1) the fatty acid monoglyceride used in the invention contains alcoholic hydroxyl group which reacts with phosphorus pentasulfide, the fatty acid monoglyceride reacts with phosphorus pentasulfide to obtain a modified product of hexaphosphoric acid, then the modified product of hexaphosphoric acid reacts with zinc oxide to carry out zinc saponification, and double bonds on a carbon chain of the zinc pentasulfide are added by a vulcanizing agent to finally obtain a self-made antiwear additive with extreme pressure, and polar atoms in the self-made antiwear additive and the surface of a metal friction pair are subjected to semi-chemical and semi-physical adsorption to form a layer of reaction film with coexisting organic compounds and inorganic compounds, so that the bearing capacity of hydraulic oil can be effectively improved; zinc atoms in the decomposition process can be alloyed with iron to form a solid solution, so that the abrasion resistance of the surface of the friction pair is enhanced, and in the friction process, the decomposition product of the self-made abrasion-resistant additive reacts with iron and oxygen to form a polymeric film consisting of compounds such as phosphate, iron sulfide and the like, so that the lubricating effect is good, and the antifriction performance of the oil product is improved;
(2) according to the invention, the sodium sulfide solution is utilized to carry out vulcanization modification on the carbon nano tube to obtain the modified carbon nano tube antiwear agent, and the antiwear agent disclosed by the invention can be effectively adsorbed on the surface of a friction pair in the using friction process, so that the direct contact of the two friction pairs is blocked, the two friction pairs slide on a nano sulfide adsorption film, the friction and the abrasion of the friction pairs are effectively reduced, and the antifriction performance of an oil product is improved; in addition, the carbon nano tube can fill up microscopic pits, repair the surface of a friction pair, reduce the roughness of the relative surface, increase the stress area of friction force and reduce the abrasion of the friction pair, has a graphite interlayer sliding structure, has weak bonding force between layers under the action of shearing force, and can generate relative sliding to play roles of lubricating and reducing friction; the binding force in the layer is relatively large, and the load vertical to the base surface can be supported, so that the bearing capacity of the oil product is improved; in addition, the self-made antiwear additive and the modified carbon nano tube antiwear agent are used together, the filling and leveling effects of the carbon nano tube can promote the generation of a self-made antiwear additive extreme pressure film and the iron sulfide, the abrasive wear of the friction pair surface is greatly reduced, the bearing capacity of hydraulic oil can be effectively improved, the self-made antiwear additive extreme pressure film and the iron sulfide generate a synergistic effect, and the antiwear effect of the hydraulic oil is improved.
The foregoing is a summary of the present invention, and in order to provide a clear understanding of the technical means of the present invention and to be implemented in accordance with the present specification, the following is a detailed description of the preferred embodiments of the present invention.
Detailed Description
The following examples are given to further illustrate the embodiments of the present invention. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
(1) Mixing fatty acid monoglyceride and phosphorus pentasulfide according to a mass ratio of 5:1, then putting the mixture into a reaction kettle, adding butanol with the mass of 3 times of the phosphorus pentasulfide into the reaction kettle, heating the mixture to 90-100 ℃, stirring the mixture for reaction for 5-7 hours, filtering the mixture, and separating the mixture to obtain reaction filtrate;
(2) mixing the reaction filtrate, zinc oxide and 18% ammonia water by mass according to a mass ratio of 47:13:2, adding the mixture into a reaction kettle, heating to 85-90 ℃, stirring for reaction for 6-8 hours, adding 10% sulfur by mass of the reaction filtrate into the reaction kettle after the reaction is finished, reacting for 30-40 min at 170-180 ℃, filtering after the reaction is finished, and separating to obtain a filtrate, namely the self-made anti-wear additive; the fatty acid monoglyceride used in the invention contains alcoholic hydroxyl group which reacts with phosphorus pentasulfide, the fatty acid monoglyceride reacts with phosphorus pentasulfide to obtain a modified product of hexaphosphoric acid, then the modified product of hexaphosphoric acid reacts with zinc oxide to carry out zinc saponification, and double bonds on a carbon chain of the zinc pentasulfide are added by a vulcanizing agent to finally obtain a self-made antiwear additive with extreme pressure, and polar atoms in the self-made antiwear additive and the surface of a metal friction pair are subjected to semi-chemical and semi-physical adsorption to form a layer of reaction film with coexisting organic compounds and inorganic compounds, so that the bearing capacity of hydraulic oil can be effectively improved; zinc atoms in the decomposition process can be alloyed with iron to form a solid solution, so that the abrasion resistance of the surface of the friction pair is enhanced, and in the friction process, the decomposition product of the self-made abrasion-resistant additive reacts with iron and oxygen to form a polymeric film consisting of compounds such as phosphate, iron sulfide and the like, so that the lubricating effect is good, and the antifriction performance of the oil product is improved;
(3) mixing sodium sulfide and water according to a mass ratio of 1:8 to obtain a sodium sulfide solution, mixing the sodium sulfide solution and the carbon nano tube according to a mass ratio of 10:1, putting the mixture into an ultrasonic oscillator, carrying out ultrasonic oscillation dipping reaction for 3-5 hours at a frequency of 40-50 kHz, and filtering and separating to obtain filter residues to obtain the modified carbon nano tube antiwear agent; according to the invention, the sodium sulfide solution is utilized to carry out vulcanization modification on the carbon nano tube to obtain the modified carbon nano tube antiwear agent, and the antiwear agent disclosed by the invention can be effectively adsorbed on the surface of a friction pair in the using friction process, so that the direct contact of the two friction pairs is blocked, the two friction pairs slide on a nano sulfide adsorption film, the friction and the abrasion of the friction pairs are effectively reduced, and the antifriction performance of an oil product is improved; in addition, the carbon nano tube can fill up microscopic pits, repair the surface of a friction pair, reduce the roughness of the relative surface, increase the stress area of friction force and reduce the abrasion of the friction pair, has a graphite interlayer sliding structure, has weak bonding force between layers under the action of shearing force, and can generate relative sliding to play roles of lubricating and reducing friction; the binding force in the layer is relatively large, and the load vertical to the base surface can be supported, so that the bearing capacity of the oil product is improved; in addition, the self-made antiwear additive and the modified carbon nano tube antiwear agent are used together, the filling and leveling effects of the carbon nano tube can promote the generation of a self-made antiwear additive extreme pressure film and the iron sulfide, the abrasive wear of the friction pair surface is greatly reduced, the bearing capacity of hydraulic oil can be effectively improved, the self-made antiwear additive extreme pressure film and the iron sulfide generate a synergistic effect, and the antiwear effect of the hydraulic oil is improved;
(4) weighing 30-34 parts of pentaerythritol oleate, 15-19 parts of glycol polyether, 1-3 parts of polyethylene glycol, 1-2 parts of fatty alcohol-polyoxyethylene ether, 1-2 parts of self-made anti-wear additive, 2-4 parts of modified carbon nanotube anti-wear agent, 40-44 parts of water and 0.5-0.9 part of pigment in parts by weight;
(5) firstly, adding glycol polyether, polyethylene glycol and fatty alcohol-polyoxyethylene ether into pentaerythritol oleate, stirring for 20min, then adding a self-made anti-wear additive and a modified carbon nanotube anti-wear agent, stirring for 10min, then adding water and a pigment, continuously stirring for 50min, and then discharging to obtain the anti-wear water-based hydraulic oil.
Examples
Example 1
Mixing fatty acid monoglyceride and phosphorus pentasulfide according to a mass ratio of 5:1, then loading into a reaction kettle, adding butanol with the mass of 3 times of phosphorus pentasulfide into the reaction kettle, heating to 100 ℃, stirring for reaction for 7 hours, filtering, and separating to obtain reaction filtrate; mixing the reaction filtrate, zinc oxide and 18% ammonia water by mass according to the mass ratio of 47:13:2, adding the mixture into a reaction kettle, heating to 90 ℃, stirring for reaction for 8 hours, adding 10% sulfur by mass of the reaction filtrate into the reaction kettle after the reaction is finished, reacting for 40min at 180 ℃, filtering after the reaction is finished, and separating to obtain filtrate, namely the self-made antiwear additive; mixing sodium sulfide and water according to a mass ratio of 1:8 to obtain a sodium sulfide solution, mixing the sodium sulfide solution and the carbon nano tube according to a mass ratio of 10:1, putting the mixture into an ultrasonic oscillator, carrying out ultrasonic oscillation dipping reaction for 5 hours at a frequency of 50kHz, and filtering and separating to obtain filter residues to obtain the modified carbon nano tube antiwear agent; weighing 30 parts of pentaerythritol oleate, 15 parts of glycol polyether, 1 part of polyethylene glycol, 1 part of fatty alcohol-polyoxyethylene ether, 1 part of self-made anti-wear additive, 2 parts of modified carbon nanotube anti-wear agent, 40 parts of water and 0.5 part of pigment in parts by weight; firstly, adding glycol polyether, polyethylene glycol and fatty alcohol-polyoxyethylene ether into pentaerythritol oleate, stirring for 20min, then adding a self-made anti-wear additive and a modified carbon nanotube anti-wear agent, stirring for 10min, then adding water and a pigment, continuously stirring for 50min, and then discharging to obtain the anti-wear water-based hydraulic oil.
Example 2
Mixing fatty acid monoglyceride and phosphorus pentasulfide according to a mass ratio of 5:1, then loading into a reaction kettle, adding butanol with the mass of 3 times of phosphorus pentasulfide into the reaction kettle, heating to 100 ℃, stirring for reaction for 7 hours, filtering, and separating to obtain reaction filtrate; mixing the reaction filtrate, zinc oxide and 18% ammonia water by mass according to the mass ratio of 47:13:2, adding the mixture into a reaction kettle, heating to 90 ℃, stirring for reaction for 8 hours, adding 10% sulfur by mass of the reaction filtrate into the reaction kettle after the reaction is finished, reacting for 40min at 180 ℃, filtering after the reaction is finished, and separating to obtain filtrate, namely the self-made antiwear additive; mixing sodium sulfide and water according to a mass ratio of 1:8 to obtain a sodium sulfide solution, mixing the sodium sulfide solution and the carbon nano tube according to a mass ratio of 10:1, putting the mixture into an ultrasonic oscillator, carrying out ultrasonic oscillation dipping reaction for 5 hours at a frequency of 50kHz, and filtering and separating to obtain filter residues to obtain the modified carbon nano tube antiwear agent; weighing 31 parts of pentaerythritol oleate, 16 parts of glycol polyether, 1 part of polyethylene glycol, 1 part of fatty alcohol-polyoxyethylene ether, 1 part of self-made anti-wear additive, 2 parts of modified carbon nanotube anti-wear agent, 41 parts of water and 0.6 part of pigment in parts by weight; firstly, adding glycol polyether, polyethylene glycol and fatty alcohol-polyoxyethylene ether into pentaerythritol oleate, stirring for 20min, then adding a self-made anti-wear additive and a modified carbon nanotube anti-wear agent, stirring for 10min, then adding water and a pigment, continuously stirring for 50min, and then discharging to obtain the anti-wear water-based hydraulic oil.
Example 3
Mixing fatty acid monoglyceride and phosphorus pentasulfide according to a mass ratio of 5:1, then loading into a reaction kettle, adding butanol with the mass of 3 times of phosphorus pentasulfide into the reaction kettle, heating to 100 ℃, stirring for reaction for 7 hours, filtering, and separating to obtain reaction filtrate; mixing the reaction filtrate, zinc oxide and 18% ammonia water by mass according to the mass ratio of 47:13:2, adding the mixture into a reaction kettle, heating to 90 ℃, stirring for reaction for 8 hours, adding 10% sulfur by mass of the reaction filtrate into the reaction kettle after the reaction is finished, reacting for 40min at 180 ℃, filtering after the reaction is finished, and separating to obtain filtrate, namely the self-made antiwear additive; mixing sodium sulfide and water according to a mass ratio of 1:8 to obtain a sodium sulfide solution, mixing the sodium sulfide solution and the carbon nano tube according to a mass ratio of 10:1, putting the mixture into an ultrasonic oscillator, carrying out ultrasonic oscillation dipping reaction for 5 hours at a frequency of 50kHz, and filtering and separating to obtain filter residues to obtain the modified carbon nano tube antiwear agent; weighing 32 parts of pentaerythritol oleate, 17 parts of glycol polyether, 2 parts of polyethylene glycol, 2 parts of fatty alcohol-polyoxyethylene ether, 2 parts of self-made anti-wear additive, 3 parts of modified carbon nanotube anti-wear agent, 42 parts of water and 0.7 part of pigment in parts by weight; firstly, adding glycol polyether, polyethylene glycol and fatty alcohol-polyoxyethylene ether into pentaerythritol oleate, stirring for 20min, then adding a self-made anti-wear additive and a modified carbon nanotube anti-wear agent, stirring for 10min, then adding water and a pigment, continuously stirring for 50min, and then discharging to obtain the anti-wear water-based hydraulic oil.
Example 4
Mixing fatty acid monoglyceride and phosphorus pentasulfide according to a mass ratio of 5:1, then loading into a reaction kettle, adding butanol with the mass of 3 times of phosphorus pentasulfide into the reaction kettle, heating to 100 ℃, stirring for reaction for 7 hours, filtering, and separating to obtain reaction filtrate; mixing the reaction filtrate, zinc oxide and 18% ammonia water by mass according to the mass ratio of 47:13:2, adding the mixture into a reaction kettle, heating to 90 ℃, stirring for reaction for 8 hours, adding 10% sulfur by mass of the reaction filtrate into the reaction kettle after the reaction is finished, reacting for 40min at 180 ℃, filtering after the reaction is finished, and separating to obtain filtrate, namely the self-made antiwear additive; mixing sodium sulfide and water according to a mass ratio of 1:8 to obtain a sodium sulfide solution, mixing the sodium sulfide solution and the carbon nano tube according to a mass ratio of 10:1, putting the mixture into an ultrasonic oscillator, carrying out ultrasonic oscillation dipping reaction for 5 hours at a frequency of 50kHz, and filtering and separating to obtain filter residues to obtain the modified carbon nano tube antiwear agent; weighing 33 parts of pentaerythritol oleate, 18 parts of glycol polyether, 3 parts of polyethylene glycol, 2 parts of fatty alcohol-polyoxyethylene ether, 2 parts of self-made anti-wear additive, 4 parts of modified carbon nanotube anti-wear agent, 43 parts of water and 0.8 part of pigment in parts by weight; firstly, adding glycol polyether, polyethylene glycol and fatty alcohol-polyoxyethylene ether into pentaerythritol oleate, stirring for 20min, then adding a self-made anti-wear additive and a modified carbon nanotube anti-wear agent, stirring for 10min, then adding water and a pigment, continuously stirring for 50min, and then discharging to obtain the anti-wear water-based hydraulic oil.
Example 5
Mixing fatty acid monoglyceride and phosphorus pentasulfide according to a mass ratio of 5:1, then loading into a reaction kettle, adding butanol with the mass of 3 times of phosphorus pentasulfide into the reaction kettle, heating to 100 ℃, stirring for reaction for 7 hours, filtering, and separating to obtain reaction filtrate; mixing the reaction filtrate, zinc oxide and 18% ammonia water by mass according to the mass ratio of 47:13:2, adding the mixture into a reaction kettle, heating to 90 ℃, stirring for reaction for 8 hours, adding 10% sulfur by mass of the reaction filtrate into the reaction kettle after the reaction is finished, reacting for 40min at 180 ℃, filtering after the reaction is finished, and separating to obtain filtrate, namely the self-made antiwear additive; mixing sodium sulfide and water according to a mass ratio of 1:8 to obtain a sodium sulfide solution, mixing the sodium sulfide solution and the carbon nano tube according to a mass ratio of 10:1, putting the mixture into an ultrasonic oscillator, carrying out ultrasonic oscillation dipping reaction for 5 hours at a frequency of 50kHz, and filtering and separating to obtain filter residues to obtain the modified carbon nano tube antiwear agent; weighing 34 parts of pentaerythritol oleate, 19 parts of glycol polyether, 3 parts of polyethylene glycol, 2 parts of fatty alcohol-polyoxyethylene ether, 2 parts of self-made anti-wear additive, 4 parts of modified carbon nanotube anti-wear agent, 44 parts of water and 0.9 part of pigment in parts by weight; firstly, adding glycol polyether, polyethylene glycol and fatty alcohol-polyoxyethylene ether into pentaerythritol oleate, stirring for 20min, then adding a self-made anti-wear additive and a modified carbon nanotube anti-wear agent, stirring for 10min, then adding water and a pigment, continuously stirring for 50min, and then discharging to obtain the anti-wear water-based hydraulic oil.
Comparative example 1
Comparative example 1 the preparation method was substantially the same as in example 1 of the present invention, comparative example 1 was not added with the self-made antiwear additive of the present invention, and the components and amounts of the remaining raw materials were the same as in example 1 of the present invention;
comparative example 2
The preparation method of the comparative example 2 is basically the same as that of the example 1 of the invention, the modified carbon nano tube antiwear agent of the invention is not added in the comparative example 2, and the components and the using amount of the other raw materials are the same as those of the example 1 of the invention;
comparative example 3
Comparative example 3 the preparation method was substantially the same as in example 1 of the present invention, in comparative example 3, the ordinary carbon nanotubes were used in place of the modified carbon nanotube antiwear agent of the present invention, and the components and amounts of the remaining raw materials were the same as in example 1 of the present invention;
performance test
The examples 1 to 5 of the present invention and the comparative examples 1 to 3 were subjected to performance test tests, respectively, and the test results are shown in table 1:
detection method
And (3) testing the abrasion resistance: the scrub spot diameter was measured with reference to SH/T0189 standards. And testing the maximum non-clamping load value of the hydraulic oil.
TABLE 1 Performance test results
Firstly, comparing the detection data in examples 1 to 5, wherein the detection data in examples 1 to 3 gradually become excellent, and the detection data in example 4 is reduced, because the components of the hydraulic oil have an optimal proportion, the hydraulic oil with optimal performance can be prepared only under the condition of the component proportion of example 3, and the technical scheme of the invention can be implemented by laterally verifying that the hydraulic oil with optimal performance can be prepared;
comparing the detection data of the example 1 and the comparative example 1, wherein the comparative example 1 does not add the self-made antiwear additive of the invention, and the components and the dosage of the rest raw materials are the same as the example 1 of the invention; the wear resistance of the final hydraulic oil is remarkably reduced because the fatty acid monoglyceride used in the invention contains alcoholic hydroxyl group reacted with phosphorus pentasulfide, the alcoholic hydroxyl group is reacted with the phosphorus pentasulfide to obtain a modified product of hexaphosphoric acid, then the modified product is reacted with zinc oxide to carry out zinc saponification, and double bonds on a carbon chain of the modified product are added through a vulcanizing agent to finally obtain a self-made wear-resistant additive with extreme pressure property, and a polar atom in the self-made wear-resistant additive and the surface of a metal friction pair are subjected to semi-chemical and semi-physical adsorption to form a reaction film with coexisting organic compounds and inorganic compounds, so that the bearing capacity of the hydraulic oil can be effectively improved; zinc atoms in the decomposition process can be alloyed with iron to form a solid solution, so that the abrasion resistance of the surface of the friction pair is enhanced, and in the friction process, the decomposition product of the self-made abrasion-resistant additive reacts with iron and oxygen to form a polymeric film consisting of compounds such as phosphate, iron sulfide and the like, so that the lubricating effect is good, and the antifriction performance of the oil product is improved; the self-made antiwear additive of the invention is proved to improve the antiwear property of the hydraulic oil;
comparing the detection data of the example 1 and the comparative example 2, wherein the comparative example 2 does not add the modified carbon nano tube antiwear agent of the invention, and the components and the using amount of the other raw materials are the same as the example 1 of the invention; the antiwear agent can be effectively adsorbed on the surface of a friction pair in the using friction process, the direct contact of the two friction pairs is blocked, the two friction pairs slide on a nano sulfide adsorption film, the friction and the abrasion of the friction pairs are effectively reduced, and the antifriction performance of an oil product is improved; in addition, the carbon nano tube can fill up microscopic pits, repair the surface of a friction pair, reduce the roughness of the relative surface, increase the stress area of friction force and reduce the abrasion of the friction pair, has a graphite interlayer sliding structure, has weak bonding force between layers under the action of shearing force, and can generate relative sliding to play roles of lubricating and reducing friction; the binding force in the layer is relatively large, and the load vertical to the base surface can be supported, so that the bearing capacity of the oil product is improved; in addition, the self-made antiwear additive and the modified carbon nano tube antiwear agent are used together, the filling and leveling effects of the carbon nano tube can promote the generation of a self-made antiwear additive extreme pressure film and the iron sulfide, the abrasive wear of the friction pair surface is greatly reduced, the bearing capacity of hydraulic oil can be effectively improved, the self-made antiwear additive extreme pressure film and the iron sulfide generate a synergistic effect, and the antiwear effect of the hydraulic oil is improved; the modified carbon nano tube antiwear agent can improve the antiwear performance of hydraulic oil;
comparing example 1 with comparative example 3, the components and the amount of the other raw materials are the same as example 1 of the invention, because the common carbon nano tube is used to replace the modified carbon nano tube antiwear agent of the invention in comparative example 3; the abrasion resistance of the final hydraulic oil is also reduced, because the self-made abrasion-resistant additive can generate a synergistic effect only when being used together with the modified carbon nano tube abrasion-resistant agent, and the technical scheme of the invention can be implemented.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The antiwear aqueous hydraulic oil is characterized in that: the composite material comprises the following raw materials in parts by weight:
30-34 parts of pentaerythritol oleate;
15-19 parts of glycol polyether;
1-3 parts of polyethylene glycol;
1-2 parts of fatty alcohol-polyoxyethylene ether;
1-2 parts of a self-made antiwear additive;
40-44 parts of water;
0.5-0.9 parts of pigment;
the self-made antiwear additive is prepared by reacting fatty acid monoglyceride with phosphorus pentasulfide, butanol, zinc oxide, ammonia water and sulfur.
2. The antiwear aqueous hydraulic oil according to claim 1, wherein: the adhesive also comprises the following components in parts by weight:
2-4 parts of a modified carbon nanotube antiwear agent;
the modified carbon nano tube antiwear agent is prepared by mixing and reacting sodium sulfide, water and carbon nano tubes.
3. The antiwear aqueous hydraulic oil according to claim 2, wherein: the composite material comprises the following raw materials in parts by weight:
32 parts of pentaerythritol oleate;
17 parts of ethylene glycol polyether;
2 parts of polyethylene glycol;
2 parts of fatty alcohol-polyoxyethylene ether;
2 parts of self-made antiwear additive;
3 parts of a modified carbon nanotube antiwear agent;
42 parts of water;
0.7 part of pigment.
4. A preparation method of antiwear aqueous hydraulic oil is characterized by comprising the following specific preparation steps:
(1) weighing 30-34 parts of pentaerythritol oleate, 15-19 parts of glycol polyether, 1-3 parts of polyethylene glycol, 1-2 parts of fatty alcohol-polyoxyethylene ether, 1-2 parts of self-made anti-wear additive, 2-4 parts of modified carbon nanotube anti-wear agent, 40-44 parts of water and 0.5-0.9 part of pigment in parts by weight;
(2) firstly, adding glycol polyether, polyethylene glycol and fatty alcohol-polyoxyethylene ether into pentaerythritol oleate, stirring for 20min, then adding a self-made anti-wear additive and a modified carbon nanotube anti-wear agent, stirring for 10min, then adding water and a pigment, continuously stirring for 50min, and then discharging to obtain the anti-wear water-based hydraulic oil.
5. The method for preparing antiwear aqueous hydraulic oil according to claim 4, wherein: the preparation steps of the self-made antiwear additive are as follows:
(1) mixing fatty acid monoglyceride and phosphorus pentasulfide according to a mass ratio of 5:1, then putting the mixture into a reaction kettle, adding butanol with the mass of 3 times of the phosphorus pentasulfide into the reaction kettle, heating the mixture to 90-100 ℃, stirring the mixture for reaction for 5-7 hours, filtering the mixture, and separating the mixture to obtain reaction filtrate;
(2) mixing the reaction filtrate, zinc oxide and 18% ammonia water in a mass ratio of 47:13:2, adding the mixture into a reaction kettle, heating to 85-90 ℃, stirring for reaction for 6-8 hours, adding 10% by mass of sulfur into the reaction kettle after the reaction is finished, reacting for 30-40 min at 170-180 ℃, filtering after the reaction is finished, and separating to obtain a filtrate, namely the self-made wear-resistant additive.
6. The method for preparing antiwear aqueous hydraulic oil according to claim 4, wherein: the preparation method of the modified carbon nanotube antiwear agent comprises the following steps:
mixing sodium sulfide and water according to a mass ratio of 1:8 to obtain a sodium sulfide solution, mixing the sodium sulfide solution and the carbon nano tube according to a mass ratio of 10:1, putting the mixture into an ultrasonic oscillator, carrying out ultrasonic oscillation dipping reaction for 3-5 hours at a frequency of 40-50 kHz, and filtering and separating to obtain filter residues to obtain the modified carbon nano tube antiwear agent.
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