CN112375604A - Non-soap-base fully-synthetic lubricating grease and preparation method thereof - Google Patents
Non-soap-base fully-synthetic lubricating grease and preparation method thereof Download PDFInfo
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- CN112375604A CN112375604A CN202011108665.6A CN202011108665A CN112375604A CN 112375604 A CN112375604 A CN 112375604A CN 202011108665 A CN202011108665 A CN 202011108665A CN 112375604 A CN112375604 A CN 112375604A
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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
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
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- 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
- C10M2201/087—Boron oxides, acids or salts
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/022—Ethene
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/024—Propene
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- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/026—Butene
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- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/04—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing aromatic monomers, e.g. styrene
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- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/06—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing conjugated dienes
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- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/08—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing non-conjugated dienes
- C10M2205/086—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing non-conjugated dienes used as thickening agents
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/06—Peroxides; Ozonides
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- 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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- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
- C10M2209/086—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type polycarboxylic, e.g. maleic acid
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/066—Arylene diamines
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/086—Imides
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/221—Six-membered rings containing nitrogen and carbon only
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/221—Six-membered rings containing nitrogen and carbon only
- C10M2215/222—Triazines
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/223—Five-membered rings containing nitrogen and carbon only
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- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds
- C10M2219/022—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds of hydrocarbons, e.g. olefines
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- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
- C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
- C10M2219/066—Thiocarbamic type compounds
- C10M2219/068—Thiocarbamate metal salts
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- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
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- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
- C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
- C10M2219/106—Thiadiazoles
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- 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
- C10M2223/041—Triaryl phosphates
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- C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
- C10M2227/04—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions having a silicon-to-carbon bond, e.g. organo-silanes
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Abstract
The invention relates to the technical field of lubricating grease, and discloses non-soap-based fully synthetic lubricating grease and a preparation method thereof, wherein the non-soap-based fully synthetic lubricating grease comprises the following components in percentage by weight: 2-15% of ethylene propylene diene monomer, 0.5-10% of polyisobutylene, 70-95% of base oil, 0.01-2% of organic peroxide, 0.01-1% of organic compound of polar multifunctional group, 0.01-3% of synthetic assistant, 0.3-2% of antioxidant, 0.01-0.3% of metal deactivator, 0.3-5% of extreme pressure antiwear agent, 0-10% of low temperature performance improver and 10-200PPm of organic silicone oil defoamer. The lubricating grease has excellent shearing stability, lubricating property, extreme pressure abrasion resistance, water resistance, acid and alkali resistance and temperature resistance, has no three-waste emission in the production process, overcomes many defects of the existing lubricating grease, and meets the requirements of field development.
Description
Technical Field
The invention relates to the technical field of lubricating grease, and particularly relates to non-soap-based fully-synthetic lubricating grease and a preparation method thereof.
Background
The lubricating grease is a thick grease-like semisolid lubricant which is used for a friction part of machinery to play a role in lubrication and sealing, and is also used for a metal surface to play a role in filling gaps and preventing rust; is prepared mainly from mineral oil (or synthetic lubricating oil) and soap. Soap is a semisolid grease-like substance formed by filling mineral oil (or synthetic lubricating oil) into a fiber network structure formed by soap, and the substance is called grease.
With the use of grease, it has been found that grease has many problems during its use, and thus, the grease is improved continuously, but it is an alkaline surfactant as a soap, and therefore, soap-based grease is vulnerable to water dripping or water flushing; the antiwear agent used in lubrication is almost all acidic organic compounds, and the acidic organic compounds are applied to the lubricating grease to greatly destroy the structure of the soap, thereby reducing the service life of the lubricating grease. Secondly, the lubricating grease generates high temperature by friction in the using process, the high temperature oxidizes oil, the oil is oxidized to become an acid substance, and meanwhile, the fibrous structure of the soap has extremely low strength and is difficult to bear the damage to the soap structure in the mechanical movement friction process, so that the service life of the lubricating grease is greatly limited.
For this purpose, urea greases have been developed in which the urea compound is the addition reaction product of an isocyanate and an organic amine and is therefore also a soap. The generation of the carbamido lubricating grease improves the lubricating grease to a new height, the whole use performance is greatly improved, the carbamido lubricating grease has high dropping point, hydrophobicity, high temperature resistance and good oxidation stability, but the production process of the carbamido lubricating grease is rigorous in requirement, extremely high in production cost and poor in shearing resistance, and the thickness of the carbamido lubricating grease is changed greatly and is easy to dilute and run off under the conditions of high-speed and low-speed shearing; the raw material isocyanate is a highly toxic product, so the protection requirement is strict in the production and use process, and the storage and transportation are difficult, so that the use of the isocyanate is limited to a certain extent.
Therefore, there is a need for a non-soap based fully synthetic grease that overcomes the above-mentioned drawbacks.
Disclosure of Invention
The invention aims to solve the technical problem of providing the non-soap-based fully synthetic lubricating grease and the preparation method thereof, the production process has no three-waste discharge, and the non-soap-based fully synthetic lubricating grease has excellent shear stability, lubricity, extreme pressure abrasion resistance, water resistance, acid and alkali resistance and temperature resistance, and meets the requirements of field development.
In order to solve the technical problems, the technical scheme of the invention is as follows: a non-soap base full synthetic lubricating grease comprises the following components in percentage by weight:
2 to 15 percent of ethylene propylene diene monomer,
0.5 to 10 percent of polyisobutene,
70 to 95 percent of base oil,
0.01 to 2 percent of organic peroxide,
0.01-1% of organic compound with polar multifunctional group,
0.01 to 3 percent of synthetic auxiliary agent,
0.3 to 2 percent of antioxidant,
0.01 to 0.3 percent of metal passivator,
0.3 to 5 percent of extreme pressure antiwear agent,
0 to 10 percent of low-temperature performance improver,
the organic silicon oil defoaming agent is 10-200 PPm.
In a preferred embodiment, the base oil is one or a mixture of mineral oil and synthetic oil, the mineral oil is preferably naphthenic base oil, and the synthetic oil is preferably non-polar synthetic oil, so as to improve the water resistance of the grease.
In a preferred embodiment, the organic peroxide is one or more of 1, 4-di-tert-butylperoxyisopropyl benzene, dicumyl peroxide, benzoyl peroxide, 1, 1-di-tert-butylperoxy-3, 3, 5-trimethylcyclohexane, 2, 5-dimethyl-2, 5-bis (tert-butylperoxy) hexane, and 1, 3-bis (tert-butylperoxyisopropyl) benzene.
In a preferred embodiment, the organic compound of polar multifunctional group is one or more of trimethylolpropane triacrylate, trimethylolpropane trimethacrylate, ethylene glycol diacrylate, ethylene glycol dimethacrylate, N' -p-phenylene bismaleimide, zinc diacrylate and zinc dimethacrylate.
In a preferred embodiment, the synthesis assistant is one or more of triallyl cyanurate, triallyl isocyanurate, 1, 2-polybutadiene, N-m-bismaleimide, bis methylene thiuram hexasulfide, N-p-bismaleimide, and N, N' -bisfurfurylideneacetone.
In a preferred embodiment, the antioxidant is one or a mixture of 2,2, 4-trimethyl-1, 2-dihydroquinoline, 2-mercaptobenzimidazole and p-phenylenediamine.
In a preferred embodiment, the metal deactivator is one of a benzotriazole derivative T551 and a thiadiazole derivative T561.
In a preferred embodiment, the extreme pressure antiwear agent is one or a mixture of several of sulfurized cottonseed oil, sulfurized olefin cottonseed oil, sulfurized isobutylene, dibenzyl disulfide, tricresyl phosphate, di-n-butyl phosphite, triphenyl phosphate, dialkyl dithiocarbamate (molybdenum, zinc and tungsten), dialkyl dithiophosphate (molybdenum, zinc and tungsten), sodium metaborate, potassium metaborate and potassium triborate.
In a preferred embodiment, the low-temperature performance improver is one or a mixture of two of hydrogenated styrene diene copolymer and polymethacrylate.
The invention also provides a preparation method of the non-soap-based fully synthetic lubricating grease, which comprises the following processing steps:
adding base oil accounting for 30-60% of the total amount and all defoaming agents into a reaction kettle, heating to the temperature of 140-; cooling to 50-70 ℃, then adding the rest base oil, polyisobutylene, metal passivator, low-temperature performance improver and extreme pressure antiwear additive in sequence, stirring for 1-3h after all the base oil, polyisobutylene, metal passivator, low-temperature performance improver and extreme pressure antiwear additive are added, homogenizing, filtering and vacuum degassing to obtain a finished product.
By adopting the technical scheme, the invention has very obvious beneficial effects, the invention takes the ethylene propylene diene monomer as the base to carry out crosslinking reaction, so that the ethylene propylene diene monomer forms semisolid gel, and a large amount of lubricating oil (base oil) containing various functional additives is filled in the gel, which is completely different from the current lubricating grease production process; the present invention relates to a semi-solid gel produced by cross-linking chemical reaction of non-polar organic oil-soluble polymer, so that it has no soap component, so that it can arbitrarily add various acid and alkali additives.
The addition of the polyisobutylene greatly improves the adhesion performance of the lubricating grease, the addition of the low-temperature improver greatly improves the low-temperature service performance of the lubricating grease, and particularly, the low-temperature improver is matched with the base oil for use, so that the low-temperature service performance of the lubricating grease is better.
Because the ethylene propylene diene monomer is a nonpolar polymer, the base oil is a nonpolar organic matter, so that the ethylene propylene diene monomer and the base oil have excellent similar compatibility, the lubricating grease has excellent water-separating performance, the service performance of the lubricating grease is greatly improved, the lubricating grease can not be separated during storage and transportation, and the extreme pressure anti-wear performance of the lubricating grease can reach the anti-wear level of the gear oil of the vehicle by adding a reasonable extreme pressure anti-wear agent.
Because the grease contains no soap, the grease is resistant to water flushing and acidic and basic organic compound additives and can resist the damage of acidic substances generated by oxidation in the using process; the hardness degree of the lubricating grease can be controlled by controlling the addition amount and the crosslinking degree of the ethylene propylene diene monomer, and the low-temperature service performance of the lubricating grease can be controlled by controlling the types and the addition amounts of the base oil, the polyisobutylene and the low-temperature performance improver; the ethylene propylene diene monomer has excellent anti-shearing performance, so that the lubricating grease has excellent anti-shearing performance and is greatly superior to soap-based lubricating grease.
Detailed Description
The present invention will be described in further detail with reference to examples, which are illustrative of the present invention and are not to be construed as being limited thereto. The amount of the additive is limited only to facilitate the practice of the invention, and is not described to be outside the scope of the invention.
Example 1
A non-soap base full synthetic lubricating grease comprises the following components in percentage by weight:
2.5 percent of ethylene propylene diene monomer
1 percent of polyisobutylene,
90.757 percent of intermediate base oil,
1, 4-bis-tert-butylperoxyisopropyl benzene 0.012%
Trimethylolpropane trimethacrylate 0.011%
Triallyl cyanurate 0.02%
0.5 percent of 2,2, 4-trimethyl-1, 2-dihydroquinoline,
the thiadiazole derivative T561 is 0.05 percent,
sulfurized isobutylene, tricresyl phosphate, potassium metaborate are 2.2 percent of the mixture with the ratio of 4:1:2,
3 percent of polymethacrylate,
and the organic silicon oil defoaming agent is 50 PPm.
A preparation method of non-soap-base fully synthetic lubricating grease comprises the following processing steps:
adding 40 percent of base oil and 50PPm of defoaming agent into a reaction kettle, heating to 170 ℃, adding ethylene propylene diene monomer, stirring and dissolving, after the ethylene propylene diene monomer is completely dissolved, sequentially adding 1, 4-di-tert-butylperoxyisopropyl benzene, trimethylolpropane trimethacrylate, 2, 4-trimethyl-1, 2-dihydroquinoline under stirring, and reacting for 3.5 hours; cooling to 60 ℃, sequentially adding the rest base oil, polyisobutylene, thiadiazole derivative T561, polymethacrylate, sulfurized isobutylene, tricresyl phosphate and potassium metaborate, continuously stirring for 1.5h after all the base oil, polyisobutylene, thiadiazole derivative T561, potassium metaborate are added, homogenizing, filtering and degassing to obtain the finished product.
The finished product is detected, and the detection result is shown in the following table:
| serial number | Detecting items | The result of the detection | Test method |
| 1 | Appearance of the product | Light yellow ointment for smoothing skin | Visual inspection of |
| 2 | Working cone penetration/(0.1 mm) | 286 | GB/T269 |
| 3 | Dropping Point/. degree.C | 230 | GB/T4929 |
| 4 | Steel mesh oil distribution (24 h at 100 ℃) m% | 0.23 | SH/T0324 |
| 5 | Extension working cone penetration (100000 times)/(0.1 mm) | 301 | GB/T269 |
| 6 | Loss due to water drenching (38 ℃ C. 1)h)m％ | 0.21 | SH/T0109 |
| 7 | Extreme pressure performance (four ball method) PB/N | 987 | SH/T0202 |
Example 2
A non-soap base full synthetic lubricating grease comprises the following components in percentage by weight:
3.5 percent of ethylene-propylene-diene monomer,
3 percent of polyisobutylene,
2:1 mixing 85.45% of naphthenic base oil and poly-alpha-olefin base oil,
0.05 percent of 2, 5-dimethyl-2, 5-bis (tert-butylperoxy) hexane,
0.04 percent of glycol diacrylate,
0.06 percent of hexamethylene thiuram hexasulfide,
0.8 percent of 2-mercaptobenzimidazole and p-phenylenediamine mixed by 3:1,
0.1% of benzotriazole derivative T551,
mixing 3:1 of sulfurized isobutylene and di-n-butyl phosphite,
4% of hydrogenated styrene-diene copolymer,
the organic silicon oil defoaming agent is 100 PPm.
A preparation method of non-soap-base fully synthetic lubricating grease comprises the following processing steps:
adding 57 percent of base oil and all defoaming agents in total amount into a reaction kettle, heating to 175 ℃, adding ethylene propylene diene monomer and hydrogenated styrene diene copolymer, stirring for dissolving, after the ethylene propylene diene monomer and the hydrogenated styrene diene copolymer are completely dissolved, sequentially adding 2, 5-dimethyl-2, 5-bis (tert-butylperoxy) hexane, ethylene glycol diacrylate, hexamethylene thiuram hexasulfide, 2-mercaptobenzimidazole and p-phenylenediamine under the stirring state, reacting for 5 hours, cooling to 65 ℃, sequentially adding the rest naphthenic base oil, poly-alpha olefin base oil, polyisobutylene, benzotriazole derivative T551, sulfurized isobutylene and di-n-butyl phosphite, continuously stirring for 2 hours, homogenizing, filtering and vacuum degassing to obtain the finished product.
The finished product is detected, and the detection result is shown in the following table:
| serial number | Detecting items | The result of the detection | Test method |
| 1 | Appearance of the product | Light yellow ointment for smoothing skin | Visual inspection of |
| 2 | Working cone penetration/(0.1 mm) | 275 | GB/T269 |
| 3 | Dropping Point/. degree.C | 248 | GB/T4929 |
| 4 | Steel mesh oil distribution (24 h at 100 ℃) m% | 0.17 | SH/T0324 |
| 5 | Extension working cone penetration (100000 times)/(0.1 mm) | 295 | GB/T269 |
| 6 | The water leaching loss (1 h at 38 ℃) is m% | 0.19 | SH/T0109 |
| 7 | Extreme pressure performance (four ball method) PB/N | 1023 | SH/T0202 |
Example 3
A non-soap base full synthetic lubricating grease comprises the following components in percentage by weight:
4.2 percent of ethylene-propylene-diene monomer,
5 percent of polyisobutene,
86.98 percent of naphthenic base oil,
1, 1-di-tert-butylperoxy-3, 3, 5-trimethylcyclohexane and 1, 3-bis (tert-butylperoxyisopropyl) benzene are mixed by 0.12 percent in a ratio of 1:1,
0.07 percent of trimethylolpropane triacrylate and N, N' -p-phenyl bismaleimide mixed by 1:1,
mixing hexamethylene thiuram hexasulfide and N, N-p-bismaleimide 1:1.5 by 0.03 percent,
2,2, 4-trimethyl-1, 2-dihydroquinoline and 2-mercaptobenzimidazole 1:1 are mixed for 1.1 percent,
the thiadiazole derivative T561 is 0.5 percent,
mixing sulfurized isobutylene, dibenzyl disulfide, tricresyl phosphate and di-n-butyl phosphite at a ratio of 2:0.5:1 by 4 percent,
3% of hydrogenated styrene-diene copolymer,
the organic silicon oil defoaming agent is 10-200 PPm.
A preparation method of non-soap-base fully synthetic lubricating grease comprises the following processing steps:
adding 55 percent of base oil and all antifoaming agents into a reaction kettle, heating to 165 ℃, adding ethylene propylene diene monomer and hydrogenated styrene diene copolymer, stirring to dissolve, after the ethylene propylene diene monomer and the hydrogenated styrene diene copolymer are completely dissolved, sequentially adding 1, 1-di-tert-butyl peroxy-3, 3, 5-trimethylcyclohexane, 1, 3-bis (tert-butylperoxyisopropyl) benzene 1:1 mixture, trimethylolpropane triacrylate, N' -p-phenyl bismaleimide mixture, methylene thiuram hexasulfide, N-p-bismaleimide mixture, 2,2, 4-trimethyl-1, 2-dihydroquinoline and 2-mercaptobenzimidazole mixture under stirring, reacting for 2-5h, cooling to 55 ℃, and then adding the rest base oil, polyisobutylene, thiadiazole derivative T561, sulfurized isobutylene, dibenzyl disulfide, tricresyl phosphate and di-n-butyl phosphite mixture in sequence, continuously stirring for 2.5 hours after all the base oil, the polyisobutylene, the thiadiazole derivative T561, the dibenzyl disulfide, the tricresyl phosphate and the di-n-butyl phosphite mixture are added, homogenizing, filtering and vacuum degassing to obtain a finished product.
The finished product is detected, and the detection result is shown in the following table:
| serial number | Detecting items | The result of the detection | Test method |
| 1 | Appearance of the product | Light yellow ointment for smoothing skin | Visual inspection of |
| 2 | Working cone penetration/(0.1 mm) | 255 | GB/T269 |
| 3 | Dropping Point/. degree.C | 267 | GB/T4929 |
| 4 | Steel mesh oil distribution (24 h at 100 ℃) m% | 0.11 | SH/T0324 |
| 5 | Extension working cone penetration (100000 times)/(0.1 mm) | 273 | GB/T269 |
| 6 | The water leaching loss (1 h at 38 ℃) is m% | 0.12 | SH/T0109 |
| 7 | Extreme pressure performance (four ball method) PB/N | 1043 | SH/T0202 |
As mentioned above, it is only a preferred embodiment of the present invention, for example, the rust-proof performance of the grease can be greatly improved by adding the rust-proof agent, and other non-polar high molecular compounds are used to replace the epdm, and the present invention is not limited in other forms, and any equivalent embodiment that may be changed or modified by those skilled in the art based on the above technical disclosure can be applied to other fields, but any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention will still fall within the protection scope of the technical solution of the present invention.
Claims (9)
1. The non-soap-based fully synthetic lubricating grease is characterized by comprising the following components in percentage by weight:
2 to 15 percent of ethylene propylene diene monomer,
0.5 to 10 percent of polyisobutene,
70 to 95 percent of base oil,
0.01 to 2 percent of organic peroxide,
0.01-1% of organic compound with polar multifunctional group,
0.01 to 3 percent of synthetic auxiliary agent,
0.3 to 2 percent of antioxidant,
0.01 to 0.3 percent of metal passivator,
0.3 to 5 percent of extreme pressure antiwear agent,
0 to 10 percent of low-temperature performance improver,
the organic silicon oil defoaming agent is 10-200 PPm.
2. The non-soap base fully synthetic grease of claim 1 wherein: the organic peroxide is one or a mixture of more of 1, 4-di-tert-butylperoxyisopropyl benzene, dicumyl peroxide, benzoyl peroxide, 1, 1-di-tert-butylperoxy-3, 3, 5-trimethylcyclohexane, 2, 5-dimethyl-2, 5-bis (tert-butylperoxy) hexane and 1, 3-bis (tert-butylperoxyisopropyl) benzene.
3. The non-soap base fully synthetic grease of claim 1 wherein: the organic compound of the polar multifunctional group is one or a mixture of more of trimethylolpropane triacrylate, trimethylolpropane trimethacrylate, glycol diacrylate, glycol dimethacrylate, N' -p-phenyl bismaleimide, zinc diacrylate and zinc dimethacrylate.
4. The non-soap base fully synthetic grease of claim 1 wherein: the synthetic auxiliary agent is one or a mixture of more of triallyl cyanurate, triallyl isocyanurate, 1, 2-polybutadiene, N-m-bismaleimide, hexamethylene thiuram hexasulfide, N-p-bismaleimide and N, N' -difurfurylacetone.
5. The non-soap base fully synthetic grease of claim 1 wherein: the antioxidant is one or a mixture of more of 2,2, 4-trimethyl-1, 2-dihydroquinoline, 2-mercaptobenzimidazole and p-phenylenediamine.
6. The non-soap base fully synthetic grease of claim 1 wherein: the metal passivator is one of a benzotriazole derivative T551 and a thiadiazole derivative T561.
7. The non-soap base fully synthetic grease of claim 1 wherein: the extreme pressure antiwear agent is one or a mixture of more of sulfurized cottonseed oil, sulfurized olefin cottonseed oil, sulfurized isobutylene, dibenzyl disulfide, tricresyl phosphate, di-n-butyl phosphite, triphenyl phosphate, dialkyl dithiocarbamate, dialkyl dithiophosphate, sodium metaborate, potassium metaborate and potassium triborate.
8. The non-soap base fully synthetic grease of claim 1 wherein: the low-temperature performance improver is one or a mixture of two of hydrogenated styrene diene copolymer and polymethacrylate.
9. A method for preparing a non-soap based fully synthetic grease according to any one of claims 1 to 8 comprising the following processing steps:
adding base oil accounting for 30-60% of the total amount and all defoaming agents into a reaction kettle, heating to the temperature of 140-; cooling to 50-70 ℃, then adding the rest base oil, polyisobutylene, metal passivator, low-temperature performance improver and extreme pressure antiwear additive in sequence, stirring for 1-3h after all the base oil, polyisobutylene, metal passivator, low-temperature performance improver and extreme pressure antiwear additive are added, and homogenizing and filtering to obtain a finished product.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117430962A (en) * | 2023-10-26 | 2024-01-23 | 郑州市欧普士科技有限公司 | Filling paste for OPGW optical cable and preparation method thereof |
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| EP0942063A1 (en) * | 1997-12-19 | 1999-09-15 | AB Axel Christiernsson | Lubricating grease composition |
| KR20000072015A (en) * | 2000-06-30 | 2000-12-05 | 주식회사 드림플러스 | The method for manufacturing and composition lubricant grease |
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