CN109868177A - A kind of high-performance lubricating grease and preparation method thereof - Google Patents
A kind of high-performance lubricating grease and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a kind of high-performance conductive lubricating grease and preparation method thereof, belong to lubricating grease field.Grease filler additive prepared by the present invention increases compatibility performance so that nanoparticle is uniformly dispersed in lubricating grease, and the abrasion resistance that nanoparticle itself has, and forms antiwear and reducing friction protection to lubrication protection matrix；Ion liquid addictive is added, so that the electric conductivity of contact interface is improved, reduces resistance, the lower and substrate contact that works under lubricating grease extreme pressure state improves thermal stability, and reduces flammable harm；The thickening activating agent of preparation; reduce anti-shear performance in greasing; prevent the shear shinning of lubrication; reduce viscosity mistake rate; so that matrix is protected; it adds film for additive and phosphating coat conversion is formed to matrix, enable the lubricating protective film to matrix to be adsorbed in matrix skin by force and protect, improve lubricant effect.The present invention solves that current grease consistency is low, the problem of electric conductivity difference.
Description
Technical field
The present invention relates to technical field of lubricating grease, especially a kind of high-performance lubricating grease and preparation method thereof.
Background technique
Lubricating oil belongs to Newtonian fluid, and lubricating grease and lubricating oil are not both the lubricating oil being thickened, and thickening agent is needed to exist
It is reacted in base oil, refines, disperses just obtain, belong to typical non-newtonian fluid, the production technology formula of lubricating grease
Complicated compared with lubricating oil is more, but also lubricating grease has special three-dimensional reticular fiber structure, has obvious colloid-stabilised feature,
With certain shear resistant, electric contact can generate surface oxidation and corrosion when used for a long time, influence contact point electric conductivity
Energy.Lubricating grease coating contact face serve first it is anti-oxidation, prevent oxidizing gas enter contact area, prevent or mitigate
Cu2O、Al2O3The generation of equal oxidation films avoids contact with resistance increase；Followed by prevent invading for steam and chemical corrosivity gas
Enter, mitigates electrochemical corrosion and chemical attack；It is finally that special fine conductive material is filled with the fine voids of contact surface, changes
It has been apt to the conduction and thermally conductive situation of electric interface.It is methyl-silicone oil lubricating grease that more person is studied in lubricating grease.Due to dimethyl-silicon
The viscous resistance of oil is poor, also poor with the compatibility of organic material;So that there are greasy properties is not good enough for methyl-silicone oil lubricating grease
It the problems such as (especially to the lubricity and boundary lubrication of metal and metal), limits its scope of application.Lubricating grease is usually
It is oily based on silicone oil, thickener, stabilizer and modified additive, blended attrition process is added and forms.Its performance is especially
Mainly by its basis, classes of silicone oils determines lubricity;Therefore, the good lubricating grease of greasy property is made, needs to its base silicon
Oil is screened.Alkyl modified silicon oil is more satisfactory grease base oil.This kind of silicone oil is in dimethyl silicone polymer
The product that part methyl is replaced by alkyl.Alkyl modified silicon oil is except heat resistance, the cold resistance, demoulding for keeping dimethicone excellent
Property and hydrophobicity outside, and give two class of silicone oil new characteristic: first is that lipophilic enhancing;Second is that lubricity enhances, it is especially excellent
Good boundary lubrication.The main reason is that alkyl modified silicon oil introduces carbon functional group, so compatible with organic polymer
Property is better than dimethicone, and viscous resistance is more preferable;And with the increase of side chain hydrocarbon carbon atomicity, the lubricity of silicone oil is improved.With
Dimethicone lubricating grease is compared, and alkyl modified silicon oil lubricating grease has characteristics that good with the compatibility of organic additive;
With superior viscous resistance and print can be applied, does not influence the printing or japanning on surface;Film strength increases, boundary lubrication
It is good, it can be used to be lightly loaded in load high-speed bearing, can be used for lubrication between the stainless steel and titanium steel of more difficult lubrication and soft metal
Lubrication, coefficient of friction is low, abrasion is low.These characteristics have widened the application range of silicone oil lubricating grease, are such as used as household electrical appliances, office machinery
And the lubrication between the plastic part in automotive interior parts, between plastic part and metal parts between metal and metal
Agent also acts as the lubricant of the mechanical bearing in industrial vacuum part.Lubricating grease currently on the market adds some additives
It will affect the arranged distribution of its structure, it is serious that it is caused to lose the lubricating grease characteristic having itself, it is embodied in product
Consistency reduce, structural strength decline, electric conductivity is poor.
Summary of the invention
The technical problems to be solved by the invention: low for current grease consistency, the problem of electric conductivity difference provides one
Kind high-performance conductive lubricating grease and preparation method thereof.
In order to solve the above technical problems, the present invention is using technical solution as described below:
A kind of high-performance conductive lubricating grease, including grease base oil, antioxidant further include grease filler additive, ion
Liquid additive, thickening activating agent, film for additive；
The grease filler additive the preparation method comprises the following steps:
(1) it takes tetraethyl orthosilicate 1 ~ 4:40 in mass ratio ~ 60 that absolute ethyl alcohol and stirring mixing is added, obtains mixture, take mixture
Deionized water is added in 50 ~ 70:1 in mass ratio ~ 5, and the ammonium hydroxide for adding mixture quality 40 ~ 60% is stirred, and obtains mixture a,
It takes mixture a 50 ~ 70:2 in mass ratio ~ 5 that tetraethyl orthosilicate is added to be stirred, filters, take and filter the washed drying of slag, obtain
Dried object；
(2) it takes dried object 3 ~ 5:5 in mass ratio ~ 9 that silane activating agent is added, is warming up to 50 ~ 60 DEG C of standings, filter, take filter residue dry
It is dry, dried object a is obtained, takes dried object a 1 ~ 5:10 in mass ratio ~ 15:20 ~ 30 that dehydrated alcohol, toluene is added, is warming up to 60 ~ 70 DEG C
Heat preservation is to get grease filler additive.
Silane activating agent in the step (2) are as follows: take 3-(2- aminoethyl)-aminopropyl trimethoxysilane, divinyl three
Any one in aminocarbonyl propyl trimethoxy silane, gamma-aminopropyl-triethoxy-silane to obtain the final product.
The ion liquid addictive are as follows: take 1- propyl -3- octylimidazole hexafluorophosphate, 1- ethyl-3-methylimidazole
Bis- (fluoroform sulphonyl) inferior amine salts of tetrafluoroborate, 1- butyl -3- methylimidazole, 1- normal-butyl -3- first imidazoles hexafluorophosphoric acid
Any one in salt, 1- hexyl -3- methylimidazole hexafluorophosphate to obtain the final product.
The thickening activating agent are as follows: take hexadecylamine 2 ~ 5:1 in mass ratio ~ 3:10 ~ 20 that cyclohexylamine, dehydrated alcohol is added
It is stirred, obtains mixed liquor, take cyanate activating agent 2 ~ 5:20 in mass ratio ~ 40 that mixed liquor is added and be stirred, must stir mixed
Object is closed, takes stirring mixture 20 ~ 30:2 in mass ratio ~ 5 that deionized water mixing is added, freeze-drying is to get thickening activating agent.
The cyanate activating agent are as follows: take methyl diphenylene diisocyanate 3 ~ 7:2 in mass ratio ~ 5 that isophorone is added
Diisocyanate mixing to get.
The film for additive the preparation method comprises the following steps: according to the mass fraction, taking 2 ~ 5 parts of calcium nitrate, 20 ~ 30 parts of zinc nitrates, 1
~ 3 parts of nickel nitrates, 10 ~ 15 parts of manganese nitrates, 60 ~ 70 parts of Mazhev salts, 1 ~ 3 part of acid activity agent, 100 ~ 200 parts of deionized water stirrings
Mixing, is cooled to room temperature to get film for additive.
The acid activity agent are as follows: take tartaric acid 5 ~ 10:2 in mass ratio ~ 5 be added citric acid mixing to get.
The grease base oil are as follows: take naphthene base crude oil, poly alpha olefin, castor oil, coconut oil, any one in palm oil
Or it is any it is several by any mass ratio mix to get.
The antioxidant are as follows: take zinc dialkyl dithiophosphate, zinc dialkyl dithiocarbamate, N- phenyl-α-naphthalene
Amine, alkyl phenthazine, N- benzylamine phenylenediamine, 3-(3,5- di-tert-butyl-hydroxy phenyl) any one in Isooctyl acrylate monomer
Or it is any it is several by any mass ratio mix to get.
The preparation method includes the following steps: to take grease filler additive 3 ~ 5:10 in mass ratio ~ 20 that lubricating grease is added
Base oil is stirred, and must stir mixture a, according to the mass fraction, takes 200 ~ 300 parts of stirring mixture a, 30 ~ 40 parts of ions
Liquid additive, 25 ~ 35 portions of thickening activating agents, 15 ~ 20 parts of film for additive, 1 ~ 5 part of antioxidant mixing are to get high-performance conductive
Lubricating grease.
The present invention is compared with other methods, and advantageous effects are:
(1) grease filler additive prepared by the present invention is mixed with tetraethyl orthosilicate and ammonium hydroxide, is added again later just
Tetraethyl orthosilicate carries out diauxic growth, obtains uniform particle diameter, and circularity is good and the silica nanometer silicon ball of good dispersion, as
Basis carries out amino and alkyl and is modified, and forms active connection with lubricating grease, improves oleophylic performance, later again with azeotropic distillation
Method modified nano SiO 2 particle is transferred among toluene, and nanoparticle is dispersed in lubricating grease
It is even, increase compatibility performance, and the abrasion resistance that nanoparticle itself has, antiwear and reducing friction is formed to lubrication protection matrix and is protected
Shield；
(2) present invention be added ion liquid addictive, using anion therein in friction process all with metal base surface
The boundary lubricant film that friction chemical reaction generates phosphate-containing and fluoride respectively occurs, is slowing down friction while utilizing its low molten
Good electric conductivity is put and had, and there is wider electrochemical window, so that the electric conductivity of contact interface is improved,
Resistance is reduced, the lower and substrate contact that works under lubricating grease extreme pressure state improves thermal stability, and reduces flammable harm；
(3) thickening activating agent prepared by the present invention is using hexadecylamine, cyclohexylamine, methyl diphenylene diisocyanate as raw material
It is reacted to obtain the substance for forming cross-linked network with lubricating grease, introduces the thickening that urea groups is lubricated rouge, reduce greasing
Middle anti-shear performance prevents the shear shinning of lubrication, reduces viscosity mistake rate, so that matrix is protected, add film forming and add
Add agent to form phosphating coat conversion to matrix, improves the wearability of matrix, be effectively reduced the friction factor of surface of friction pair, prevent
Occlusion or scratch reduce the resistance of motion and noise, are formed by film and increase the binding force of lubricating grease and matrix, and make to base
The lubricating protective film of body can be adsorbed in by force matrix skin and be protected, and improve lubricant effect；
(4) grease filler additive of the present invention improves the mechanical property of lubricating grease and evenly dispersed in lubricating grease, increases
Compatibility performance, then reduce resistance through ion liquid addictive and improve thermal stability, it prevents from burning under oil base extreme pressure state, increase
Grease-added stability in use energy prevents the decline of viscosity with the anti-shear performance being thickened in activating agent increase greasing,
Increasing the binding force between each component through film for additive makes the lubricating film to be formed be adsorbed in matrix surface by force, forms matrix skin
Protection improves lubricant effect.
Specific embodiment
Grease base oil are as follows: take naphthene base crude oil, poly alpha olefin, castor oil, coconut oil, any one in palm oil or appoint
Anticipate it is several by any mass ratio mix to get.
Silane activating agent are as follows: take 3-(2- aminoethyl)-aminopropyl trimethoxysilane, diethylenetriamine base propyl three
Any one in methoxy silane, gamma-aminopropyl-triethoxy-silane to obtain the final product.
Grease filler additive the preparation method comprises the following steps:
(1) take tetraethyl orthosilicate 1 ~ 4:40 in mass ratio ~ 60 that dehydrated alcohol is added, be warming up to 30 ~ 40 DEG C be stirred 20 ~
30min obtains mixture, takes mixture 50 ~ 70:1 in mass ratio ~ 5 that deionized water is added, adds mixture quality 40 ~ 60%
Mass fraction be 25% ammonium hydroxide, be stirred 2 ~ 4h in 30 ~ 40 DEG C, obtain mixture a, take mixture a 50 ~ 70:2 in mass ratio ~
5 are added tetraethyl orthosilicate, are stirred 1 ~ 3h in 30 ~ 40 DEG C, filter, and take suction filtration slag to wash drying through deionized water, obtain dry
Dry object；
(2) it takes dried object 3 ~ 5:5 in mass ratio ~ 9 that silane activating agent is added, is warming up to 50 ~ 60 DEG C of 10 ~ 12h of standing, filter, take
Filter residue and drying obtains dried object a, takes dried object a 1 ~ 5:10 in mass ratio ~ 15:20 ~ 30 that dehydrated alcohol, toluene is added, is warming up to 60
~ 70 DEG C of 30 ~ 60min of heat preservation are to get grease filler additive.
Ion liquid addictive are as follows: take 1- propyl -3- octylimidazole hexafluorophosphate, 1- ethyl-3-methylimidazole tetrafluoro
Bis- (fluoroform sulphonyl) inferior amine salts of borate, 1- butyl -3- methylimidazole, 1- normal-butyl -3- first limidazolium hexafluorophosphate, 1-
Any one in hexyl -3- methylimidazole hexafluorophosphate to obtain the final product.
Cyanate activating agent are as follows: take methyl diphenylene diisocyanate 3 ~ 7:2 in mass ratio ~ 5 that isophorone two is added different
Cyanate mixing to get.
It is thickened activating agent are as follows: take hexadecylamine 2 ~ 5:1 in mass ratio ~ 3:10 ~ 20 that cyclohexylamine, dehydrated alcohol is added, rise
Temperature is stirred 20 ~ 40min to 40 ~ 50 DEG C, obtains mixed liquor, takes cyanate activating agent 2 ~ 5:20 in mass ratio ~ 40 that mixing is added
Liquid is stirred 30 ~ 60min in 40 ~ 60 DEG C, obtains stirring mixture, and stirring mixture 20 ~ 30:2 in mass ratio ~ 5 addition is taken to go
Ionized water mixing, freeze-drying is to get thickening activating agent.
Acid activity agent are as follows: take tartaric acid 5 ~ 10:2 in mass ratio ~ 5 be added citric acid mixing to get.
Film for additive the preparation method comprises the following steps: according to the mass fraction, taking 2 ~ 5 parts of calcium nitrate, 20 ~ 30 parts of zinc nitrates, 1 ~ 3 part
Nickel nitrate, 10 ~ 15 parts of manganese nitrates, 60 ~ 70 parts of Mazhev salts, 1 ~ 3 part of acid activity agent, 100 ~ 200 parts of deionized waters, in 60 ~ 70
DEG C it is stirred 10 ~ 20min, is cooled to room temperature to get film for additive.
Antioxidant are as follows: take zinc dialkyl dithiophosphate, zinc dialkyl dithiocarbamate, N- phenyl-α-naphthylamine, alkane
Base phenthazine, N- benzylamine phenylenediamine, 3-(3,5- di-tert-butyl-hydroxy phenyl) any one in Isooctyl acrylate monomer or any
It is several by any mass ratio mix to get.
A kind of high-performance conductive preparation of greases method includes the following steps: to take grease filler additive by quality
Grease base oil is added than 3 ~ 5:10 ~ 20, is stirred 1 ~ 3h in 350rpm, 65 ~ 75 DEG C, mixture a must be stirred, by quality
Number meter takes 200 ~ 300 parts of stirring mixture a, 30 ~ 40 parts of ion liquid addictives, 25 ~ 35 portions of thickening activating agents, 15 ~ 20 parts
Film for additive, 1 ~ 5 part of antioxidant mixing are to get high-performance conductive lubricating grease.
Embodiment 1
Grease base oil are as follows: take naphthene base crude oil.
Silane activating agent are as follows: take 3-(2- aminoethyl)-aminopropyl trimethoxysilane,.
Grease filler additive the preparation method comprises the following steps:
(1) it takes tetraethyl orthosilicate 1:40 in mass ratio that dehydrated alcohol is added, is warming up to 30 DEG C and is stirred 20min, must mix
Object takes mixture 50:1 in mass ratio that deionized water is added, and adds the ammonium hydroxide that the mass fraction of mixture quality 40% is 25%,
It is stirred 2h in 30 DEG C, obtains mixture a, takes mixture a 50:2 in mass ratio that tetraethyl orthosilicate is added, it is mixed in 30 DEG C of stirrings
1h is closed, is filtered, takes suction filtration slag to wash drying through deionized water, obtains dried object；
(2) it takes dried object 3:5 in mass ratio that silane activating agent is added, is warming up to 50 DEG C of standing 10h, filter, take filter residue and drying, obtain
Dried object a takes dried object a 1:10:20 in mass ratio that dehydrated alcohol, toluene is added, is warming up to 60 DEG C of heat preservation 30min to get profit
Grease packing additive.
Ion liquid addictive are as follows: take 1- propyl -3- octylimidazole hexafluorophosphate.
Cyanate activating agent are as follows: take methyl diphenylene diisocyanate 3:2 in mass ratio that isophorone diisocyanate is added
Ester mixing to get.
It is thickened activating agent are as follows: take hexadecylamine 2:1:10 in mass ratio that cyclohexylamine, dehydrated alcohol is added, be warming up to 40 DEG C
It is stirred 20min, obtains mixed liquor, takes cyanate activating agent 2:20 in mass ratio that mixed liquor is added, is stirred in 40 DEG C
30min obtains stirring mixture, takes stirring mixture 20:2 in mass ratio that deionized water mixing is added, is freeze-dried to get thickening
Activating agent.
Acid activity agent are as follows: take tartaric acid 5 ~ 10:2 in mass ratio ~ 5 be added citric acid mixing to get.
Film for additive the preparation method comprises the following steps: according to the mass fraction, take 2 parts of calcium nitrate, 20 parts of zinc nitrates, 1 part of nickel nitrate,
10 parts of manganese nitrates, 60 parts of Mazhev salts, 1 part of acid activity agent, 100 parts of deionized waters, are stirred 10min in 60 DEG C, are cooled to
Room temperature is to get film for additive.
Antioxidant are as follows: take zinc dialkyl dithiophosphate.
A kind of high-performance conductive preparation of greases method includes the following steps: to take grease filler additive by quality
Grease base oil is added than 3:10, is stirred 1h in 350rpm, 65 DEG C, mixture a must be stirred, according to the mass fraction, taken
200 parts of stirring mixture a, 30 parts of ion liquid addictives, 25 portions of thickening activating agents, 15 parts of film for additive, 1 part of antioxidant are mixed
It closes to get high-performance conductive lubricating grease.
Embodiment 2
Grease base oil are as follows: take poly alpha olefin.
Silane activating agent are as follows: take diethylenetriamine base propyl trimethoxy silicane.
Grease filler additive the preparation method comprises the following steps:
(1) it takes tetraethyl orthosilicate 4:60 in mass ratio that dehydrated alcohol is added, is warming up to 40 DEG C and is stirred 30min, must mix
Object takes mixture 70:5 in mass ratio that deionized water is added, and adds the ammonium hydroxide that the mass fraction of mixture quality 60% is 25%,
It is stirred 4h in 40 DEG C, obtains mixture a, takes mixture a 70:5 in mass ratio that tetraethyl orthosilicate is added, it is mixed in 40 DEG C of stirrings
3h is closed, is filtered, takes suction filtration slag to wash drying through deionized water, obtains dried object；
(2) it takes dried object 5:9 in mass ratio that silane activating agent is added, is warming up to 60 DEG C of standing 12h, filter, take filter residue and drying, obtain
Dried object a takes dried object a 5:15:30 in mass ratio that dehydrated alcohol, toluene is added, is warming up to 70 DEG C of heat preservation 60min to get profit
Grease packing additive.
Ion liquid addictive are as follows: take 1- ethyl-3-methylimidazole tetrafluoroborate.
Cyanate activating agent are as follows: take methyl diphenylene diisocyanate 7:5 in mass ratio that isophorone diisocyanate is added
Ester mixing to get.
It is thickened activating agent are as follows: take hexadecylamine 5:3:20 in mass ratio that cyclohexylamine, dehydrated alcohol is added, be warming up to 50 DEG C
It is stirred 40min, obtains mixed liquor, takes cyanate activating agent 5:40 in mass ratio that mixed liquor is added, is stirred in 60 DEG C
60min obtains stirring mixture, takes stirring mixture 30:5 in mass ratio that deionized water mixing is added, is freeze-dried to get thickening
Activating agent.
Acid activity agent are as follows: take tartaric acid 5 ~ 10:2 in mass ratio ~ 5 be added citric acid mixing to get.
Film for additive the preparation method comprises the following steps: according to the mass fraction, take 5 parts of calcium nitrate, 30 parts of zinc nitrates, 3 parts of nickel nitrates,
15 parts of manganese nitrates, 70 parts of Mazhev salts, 3 parts of acid activity agent, 200 parts of deionized waters, are stirred 20min in 70 DEG C, are cooled to
Room temperature is to get film for additive.
Antioxidant are as follows: take zinc dialkyl dithiocarbamate.
A kind of high-performance conductive preparation of greases method includes the following steps: to take grease filler additive by quality
Grease base oil is added than 5:20, is stirred 3h in 350rpm, 75 DEG C, mixture a must be stirred, according to the mass fraction, taken
300 parts of stirring mixture a, 40 parts of ion liquid addictives, 35 portions of thickening activating agents, 20 parts of film for additive, 5 parts of antioxidant are mixed
It closes to get high-performance conductive lubricating grease.
Embodiment 3
Grease base oil are as follows: take palm oil.
Silane activating agent are as follows: take gamma-aminopropyl-triethoxy-silane.
Grease filler additive the preparation method comprises the following steps:
(1) it takes tetraethyl orthosilicate 3:50 in mass ratio that dehydrated alcohol is added, is warming up to 35 DEG C and is stirred 25min, must mix
Object takes mixture 60:3 in mass ratio that deionized water is added, and adds the ammonium hydroxide that the mass fraction of mixture quality 50% is 25%,
It is stirred 3h in 35 DEG C, obtains mixture a, takes mixture a 60:3 in mass ratio that tetraethyl orthosilicate is added, it is mixed in 35 DEG C of stirrings
2h is closed, is filtered, takes suction filtration slag to wash drying through deionized water, obtains dried object；
(2) it takes dried object 4:7 in mass ratio that silane activating agent is added, is warming up to 55 DEG C of standing 11h, filter, take filter residue and drying, obtain
Dried object a takes dried object a 2:13:25 in mass ratio that dehydrated alcohol, toluene is added, is warming up to 65 DEG C of heat preservation 50min to get profit
Grease packing additive.
Ion liquid addictive are as follows: take bis- (fluoroform sulphonyl) inferior amine salts of 1- butyl -3- methylimidazole.
Cyanate activating agent are as follows: take methyl diphenylene diisocyanate 5:3 in mass ratio that isophorone diisocyanate is added
Ester mixing to get.
It is thickened activating agent are as follows: take hexadecylamine 3:2:16 in mass ratio that cyclohexylamine, dehydrated alcohol is added, be warming up to 45 DEG C
It is stirred 30min, obtains mixed liquor, takes cyanate activating agent 3:30 in mass ratio that mixed liquor is added, is stirred in 50 DEG C
50min obtains stirring mixture, takes stirring mixture 25:3 in mass ratio that deionized water mixing is added, is freeze-dried to get thickening
Activating agent.
Acid activity agent are as follows: take tartaric acid 5 ~ 10:2 in mass ratio ~ 5 be added citric acid mixing to get.
Film for additive the preparation method comprises the following steps: according to the mass fraction, take 3 parts of calcium nitrate, 25 parts of zinc nitrates, 2 parts of nickel nitrates,
13 parts of manganese nitrates, 65 parts of Mazhev salts, 2 parts of acid activity agent, 150 parts of deionized waters, are stirred 16min in 65 DEG C, are cooled to
Room temperature is to get film for additive.
Antioxidant are as follows: take 3-(3,5- di-tert-butyl-hydroxy phenyl) Isooctyl acrylate monomer.
A kind of high-performance conductive preparation of greases method includes the following steps: to take grease filler additive by quality
Grease base oil is added than 4:13, is stirred 2h in 350rpm, 70 DEG C, mixture a must be stirred, according to the mass fraction, taken
250 parts of stirring mixture a, 35 parts of ion liquid addictives, 30 portions of thickening activating agents, 17 parts of film for additive, 3 parts of antioxidant are mixed
It closes to get high-performance conductive lubricating grease.
Comparative example 1: it is essentially identical with the preparation method of embodiment 2, it has only the difference is that lacking grease filler additive.
Comparative example 2: it is essentially identical with the preparation method of embodiment 2, it has only the difference is that lacking ion liquid addictive.
Comparative example 3: it is essentially identical with the preparation method of embodiment 2, it has only the difference is that lacking thickening activating agent.
Comparative example 4: it is essentially identical with the preparation method of embodiment 2, it has only the difference is that lacking film for additive.
Comparative example 5: the high-performance conductive lubricating grease of company, Shenzhen production.
The high-performance conductive lubricating grease that above-described embodiment is prepared with comparative example is detected, foundation JISK2220-7,
In the environment of 25 DEG C, drop to the circular cone being installed on consistency meter in test lubricating grease, the depth that measurement was entered with 5 seconds
(mm), mixing consistency is used as by 10 times of measured value；Its conductivity, extreme pressure are detected according to GB1410, SH/T0203, GB/T5018
Property, corrosivity, obtain that the results are shown in Table 1.
Table 1:
In summary, high-performance conductive lubricating grease effect of the invention is more preferable as can be seen from Table 1, is worth of widely use, above
Described is only preferred mode of the invention, is not intended to limit the invention, all within the spirits and principles of the present invention, made
Any modification, equivalent substitution, improvement and etc. should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of high-performance lubricating grease, including grease base oil, antioxidant, which is characterized in that further include that grease filler adds
Add agent, ion liquid addictive, thickening activating agent, film for additive；
The grease filler additive the preparation method comprises the following steps:
(1) it takes tetraethyl orthosilicate 1 ~ 4:40 in mass ratio ~ 60 that absolute ethyl alcohol and stirring mixing is added, obtains mixture, take mixture
Deionized water is added in 50 ~ 70:1 in mass ratio ~ 5, and the ammonium hydroxide for adding mixture quality 40 ~ 60% is stirred, and obtains mixture a,
It takes mixture a 50 ~ 70:2 in mass ratio ~ 5 that tetraethyl orthosilicate is added to be stirred, filters, take and filter the washed drying of slag, obtain
Dried object；
(2) it takes dried object 3 ~ 5:5 in mass ratio ~ 9 that silane activating agent is added, is warming up to 50 ~ 60 DEG C of standings, filter, take filter residue dry
It is dry, dried object a is obtained, takes dried object a 1 ~ 5:10 in mass ratio ~ 15:20 ~ 30 that dehydrated alcohol, toluene is added, is warming up to 60 ~ 70 DEG C
Heat preservation is to get grease filler additive.
2. high-performance lubricating grease according to claim 1, which is characterized in that silane activating agent in the step (2) are as follows: take
3-(2- aminoethyl)-aminopropyl trimethoxysilane, diethylenetriamine base propyl trimethoxy silicane, three ethoxy of γ-aminopropyl
Any one in base silane to obtain the final product.
3. high-performance lubricating grease according to claim 1, which is characterized in that the ion liquid addictive are as follows: take 1- third
Base -3- octylimidazole hexafluorophosphate, 1- ethyl-3-methylimidazole tetrafluoroborate, the bis- (trifluoros of 1- butyl -3- methylimidazole
Sulfonyl methane) it is inferior amine salt, 1- normal-butyl -3- first limidazolium hexafluorophosphate, any in 1- hexyl -3- methylimidazole hexafluorophosphate
One kind to obtain the final product.
4. high-performance lubricating grease according to claim 1, which is characterized in that the thickening activating agent are as follows: take cetyl
Cyclohexylamine, absolute ethyl alcohol and stirring mixing is added in amine 2 ~ 5:1 in mass ratio ~ 3:10 ~ 20, obtains mixed liquor, take cyanate activating agent by
2 ~ 5:20 of mass ratio ~ 40 is added mixed liquor and is stirred, and obtains stirring mixture, takes stirring mixture 20 ~ 30:2 ~ 5 in mass ratio
Deionized water mixing is added, freeze-drying is to get thickening activating agent.
5. high-performance lubricating grease according to claim 4, which is characterized in that the cyanate activating agent are as follows: take diphenyl
Methane diisocyanate 3 ~ 7:2 in mass ratio ~ 5 be added isoflurane chalcone diisocyanate mixing to get.
6. high-performance conductive lubricating grease according to claim 1, which is characterized in that the preparation method of the film for additive
Are as follows: according to the mass fraction, take 2 ~ 5 parts of calcium nitrate, 20 ~ 30 parts of zinc nitrates, 1 ~ 3 part of nickel nitrate, 10 ~ 15 parts of manganese nitrates, 60 ~ 70 parts
Mazhev salt, 1 ~ 3 part of acid activity agent, 100 ~ 200 parts of deionized waters are stirred, and are cooled to room temperature to get film for additive.
7. high-performance lubricating grease according to claim 6, which is characterized in that the acid activity agent are as follows: take tartaric acid by matter
Amount than 5 ~ 10:2 ~ 5 be added citric acid mixing to get.
8. high-performance lubricating grease according to claim 1, which is characterized in that the grease base oil are as follows: take naphthenic base
Oil, poly alpha olefin, castor oil, coconut oil, any one in palm oil or it is any it is several by any mass ratio mix to get.
9. high-performance lubricating grease according to claim 1, which is characterized in that the antioxidant are as follows: take dialkyl dithio
Trbasic zinc phosphate, zinc dialkyl dithiocarbamate, N- phenyl-α-naphthylamine, alkyl phenthazine, N- benzylamine phenylenediamine, 3-(3,5- bis-
Tert-butyl-hydroxy phenyl) any one in Isooctyl acrylate monomer or it is any it is several by any mass ratio mix to get.
10. a kind of high-performance preparation of greases method as described in claim 1 ~ 9 any one, which is characterized in that the system
Preparation Method includes the following steps: that taking grease filler additive 3 ~ 5:10 in mass ratio ~ 20 that grease base oil stirring is added mixes
It closes, mixture a must be stirred, according to the mass fraction, take 200 ~ 300 parts of stirring mixture a, 30 ~ 40 parts of ion liquid addictives, 25
~ 35 portions of thickening activating agents, 15 ~ 20 parts of film for additive, 1 ~ 5 part of antioxidant mixing are to get high-performance lubricating grease.
Priority Applications (1)
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| CN116814317A (en) * | 2023-05-26 | 2023-09-29 | 新乡市恒星科技有限责任公司 | Special lubricating grease for high-temperature-resistant conductive bearing and preparation method thereof |
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Application publication date: 20190611 |