CN105199819A - High-cleanliness conductive paste composition for electric power and preparation method of composition - Google Patents
High-cleanliness conductive paste composition for electric power and preparation method of composition Download PDFInfo
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- CN105199819A CN105199819A CN201510679300.1A CN201510679300A CN105199819A CN 105199819 A CN105199819 A CN 105199819A CN 201510679300 A CN201510679300 A CN 201510679300A CN 105199819 A CN105199819 A CN 105199819A
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Abstract
The invention belongs to the technical field of electric power industries and particularly relates to high-cleanliness conductive paste composition for electric power and a preparation method of the composition. The conductive paste composition comprises raw materials in percentage by weight as follows: 50%-70% of base oil, 5%-20% of an ionic liquid and 20%-35% of a thickening agent. The ionic liquid of the composition improves the lubricating performance and the conductivity of conductive paste, can exist stably, has good thermal stability, has low vapor pressure, is not volatilized easily, solves the problem of environmental pollution caused by VOCs (volatile organic compounds), and is clean, environment-friendly and completely soluble with the base oil, and the prepared conductive paste composition has the uniform and consistent color.
Description
Technical field
The invention belongs to power industry technologies field, be specifically related to a kind of electric power abrasive conductive paste composition and preparation method thereof.
Background technology
Conductive paste, popular name conductive grease is a kind of New materials applied to electrical engineering, can be used for the contact surface of Power tabs, and anti-erosion, power savings are remarkable.China is development and production from the eighties, so far existing tens kind models, its fundamental property is identical, is to make base oil with mineral oil, synthesis lipid oil, silicone oil, add conduction, antioxygen, anti-corruption, press down the special additives such as arc, through grinding, dispersion, modified purified soft shape lotion.Conductive paste has the advantage of following several respects: (1) conductivity is good, effectively reduces electrical connection place contact resistance; (2) anticorrosive, antioxidant property is good, and the electric sealing connection of coated electric power fat can not overhaul the cycle by mechanical means joint after the process of electric power fat and the life-span can be extended; (3) dielectric strength is good, can ensure self can not to burn, can not breakdown and short circuit during work, does not run off and not arcing simultaneously; (4) equipment contact surface is after the process of electric power fat, and jointing can be protected not aging, not dry and cracked, and the time length is permanent.
Conductive material conventional in power engineering is mostly copper and aluminium, there is the conductor contact face that various etchant gas, moisture etc. can corrode connection in the environment due to work.So in routine work, copper and aluminium surface easily its chemical reaction cupric oxide and aluminum oxide, these novel substances can cover surface as film, and electroconductibility is very poor, and (resistivity can reach 10
7~ 10
10Ω m), form contact resistance.Along with work increases working time, the contact resistance of electrical connector place two contact surface constantly becomes large, causes the energy consumption of contact surface also to continue to increase; Electrical contact face heating loss also can increase, thus improve contact position temperature, and corresponding waste electric energy phenomenon is more serious, increases the thermal losses of junction, work long hours and electrical connection place can be made to burn, also may cause the generation of fire; Contact position resistance can also produce certain pressure drop in contact position again.
Therefore, in electrical connection, usually adopt two kinds of methods to reduce contact resistance: (1) wards off tin or silver-plated at the ultrasonic surface of metallic conductor.(2) industrial Vaseline is coated with at conductor connection.It is fine that ultrasonic wave wards off tin or silver-plated effect, can reduce the resistance of contact surface comparatively significantly, but complex process and need to buy professional equipment, be therefore of little use; After being coated with Vaseline, the oxidative phenomena of conductive surface can be eased, but can not work for a long time in time, also seldom adopts.
Add Perfluoropolyether lubricant (PFPE) in prior art in lubricating grease more, but, also there is many defects in Perfluoropolyether lubricant: self alloy such as easy catalyzed degradation, the perishable steel of hot operation in boundary lubrication ability, working process, the most important thing is unsusceptibility and dissolve conventional additive.
Summary of the invention
For overcoming above-mentioned defect, the object of the present invention is to provide a kind of electric power abrasive conductive paste composition, clean environment firendly, conductivity is good.
Another object of the present invention is also the preparation method providing a kind of electric power abrasive conductive paste composition.
For achieving the above object, the present invention adopts following technical scheme:
A kind of electric power abrasive conductive paste composition, comprises the raw material of following weight percentage: base oil: 50 ~ 70%, ionic liquid: 5 ~ 20%, viscosifying agent: 20 ~ 35%.
According to above-mentioned electric power abrasive conductive paste composition, also comprise the anti-wear additive of weight percentage 1 ~ 10%.
According to above-mentioned electric power abrasive conductive paste composition, described anti-wear additive is at least one in boron nitride, silicon nitride, silicon-dioxide, stearic acid and molybdenumdisulphide.
According to above-mentioned electric power abrasive conductive paste composition, described base oil is at least one in polyvinyl ether, polyphenylene oxide, polyalkylene glycol and poly-alpha-olefin.
According to above-mentioned electric power abrasive conductive paste composition, described poly-alpha-olefin is PAO25 and/or PAO40.
According to above-mentioned electric power abrasive conductive paste composition, described ionic liquid is 1-butyl-3-methyl imidazolium tetrafluoroborate (BmimBF
4), 1-hexyl-3-methyl imidazolium tetrafluoroborate (HmimBF
4), 1-butyl-3-Methylimidazole hexafluoro antimonate (BmimSbF
6), 1-butyl-3-Methylimidazole hexafluorophosphate (BmimPF
6), 1-(2-hydroxyethyl) two trifluoromethanesulfonimide the salt ([C of-3-decyl imidazoles
2oHDim] [NTf
2]), 1-hexyl-3-Methylimidazole 1,1,2,2,3,3-HFC-236fa-1,3-di-sulfonyl imides salt ([Hmim] [C
3nO
4s
2f
6]) and 1-butyl-3-Methylimidazole fluoroform sulphonate (BmimCF
3sO
3) middle at least one.
According to above-mentioned electric power abrasive conductive paste composition, described viscosifying agent is at least one in tetrafluoroethylene, wilkinite and silica gel.
A preparation method for electric power abrasive conductive paste composition, comprises the following steps:
(1) each raw material is prepared by above-mentioned weight proportion;
(2) base oil is added in reaction vessel, open whipping device, then get 45 ~ 55% of ionic liquid weight and continue to add in reaction vessel, keep 5 ~ 10min;
(3) viscosifying agent is slowly added in reaction vessel, keep 5 ~ 10min;
(4) ratio adding 2 ~ 3mL easy volatile solvent in 1g base oil adds easy volatile solvent, and mixing 40 ~ 80min, forms grease structure;
(5) residual ion liquid is divided into 2 ~ 3 times slowly to add in reaction vessel, keeps 5 ~ 10min respectively, reheat to 80 ~ 110 DEG C, and keep 30 ~ 60min;
Or residual ion liquid is divided into 2 ~ 3 times slowly add in reaction vessel, keeps 5 ~ 10min respectively, then continue to add anti-wear additive, be heated to 80 ~ 110 DEG C, and keep 30 ~ 60min;
(6) lubricating grease that step (5) obtains is down to room temperature, three-roll grinder grinds 2 ~ 3 times, obtains product conductive paste composition.
According to the preparation method of above-mentioned electric power abrasive conductive paste composition, the easy volatile solvent described in step (4) is at least one in normal hexane, ethanol and sherwood oil.
positive beneficial effect of the present invention:
1. the ionic liquid in the present invention possesses excellent tribological property, effectively can reduce friction and reduce wearing and tearing, this is because ionic liquid molecules structure is for electrically two, this structure causes ionic liquid molecules in friction process, be easily adsorbed on the surface of newborn friction pair thus form boundary lubrication friction film, thus reduction frictional coefficient, improve antiwear property, therefore friction surface can carry more high loading, add in base oil, well improve the lubricity of conductive paste, meanwhile, add anti-wear additive, improve the antiwear property of conductive paste composition further.
2. the ionic liquid liquid state temperature range in the present invention is wide, from lower than or close to room temperature within the scope of 300 DEG C, can stable existence, have good thermostability, fusing point is low, non-combustible, steam forces down, not volatile, eliminate VOC(VolatileOrganicCompounds) problem of environmental pollution, clean environment firendly.
3. the ionic liquid in the present invention all shows good dissolving power to a large amount of inorganic and organic substances, dissolves each other completely with base oil of the present invention, and the conductive paste composition uniform color of preparation is consistent.
4. conductive paste composition of the present invention eliminates the use of noble metal in conventional conductive cream, and use ionic liquid as conducting medium, dropping point is high, and volume specific resistance is little, frictional coefficient is little, and abrasion resistance is good, and conductivity is good, and preparation method is simple, with low cost, easy to implement.
Embodiment
Below in conjunction with some specific embodiments, the present invention is further described.
Embodiment 1
A kind of electric power abrasive conductive paste composition, comprises the raw material of following weight percentage: base oil: 50%, ionic liquid: 15%, viscosifying agent: 35%.
Described base oil is polyvinyl ether and poly-alpha-olefin PAO40, and both weight ratios are 1:1.
Described ionic liquid is BmimBF
4and HmimBF
4, both weight ratios are 1:1.
Described viscosifying agent is tetrafluoroethylene.
The preparation method of above-mentioned conductive paste composition, comprises the following steps:
(1) each raw material is prepared by above-mentioned weight proportion;
(2) add in reaction vessel by base oil, open whipping device, then get ionic liquid weight 45% continues to add in reaction vessel, keeps 10min;
(3) viscosifying agent is slowly added in reaction vessel, keep 5min;
(4) ratio adding 2mL normal hexane in 1g base oil adds normal hexane, and mixing 40min, forms grease structure;
(5) residual ion liquid is divided into 2 times slowly to add in reaction vessel, keeps 5min respectively, reheat to 80 DEG C, and keep 60min;
(6) lubricating grease that step (5) obtains is down to room temperature, three-roll grinder grinds 3 times, obtains product conductive paste composition.
Embodiment 2
A kind of electric power abrasive conductive paste composition, comprises the raw material of following parts by weight: base oil: 53%, ionic liquid: 12%, viscosifying agent: 25%, anti-wear additive: 10%.
Described anti-wear additive is silicon nitride.
Described base oil is polyvinyl ether.
Described ionic liquid is [C
2oHDim] [NTf
2].
Described viscosifying agent is tetrafluoroethylene.
The preparation method of above-mentioned conductive paste composition, comprises the following steps:
(1) each raw material is prepared by above-mentioned weight proportion;
(2) add in reaction vessel by base oil, open whipping device, then get ionic liquid weight 50% continues to add in reaction vessel, keeps 5min;
(3) viscosifying agent is slowly added in reaction vessel, keep 6min;
(4) ratio adding 2mL normal hexane in 1g base oil adds normal hexane, and mixing 50min, forms grease structure;
(5) residual ion liquid is divided into 2 times slowly to add in reaction vessel, keeps 5min respectively, then continue to add anti-wear additive, be heated to 100 DEG C, and keep 55min;
(6) lubricating grease that step (5) obtains is down to room temperature, three-roll grinder grinds 2 times, obtains product conductive paste composition.
Embodiment 3
A kind of electric power abrasive conductive paste composition, comprises the raw material of following parts by weight: base oil: 55%, ionic liquid: 20%, viscosifying agent: 20%, anti-wear additive: 5%.
Described anti-wear additive is silicon-dioxide.
Described base oil is polyphenylene oxide and poly-alpha-olefin PAO40, and both weight ratios are 1:1.
Described ionic liquid is BmimBF
4and HmimBF
4, both weight ratio 1:1
Described viscosifying agent is tetrafluoroethylene, wilkinite and silica gel, and the weight ratio of three is 1:1:1.
The preparation method of above-mentioned conductive paste composition, comprises the following steps:
(1) each raw material is prepared by above-mentioned weight proportion;
(2) add in reaction vessel by base oil, open whipping device, then get ionic liquid weight 45% continues to add in reaction vessel, keeps 10min;
(3) viscosifying agent is slowly added in reaction vessel, keep 10min;
(4) ratio adding 2.3mL ethanol in 1g base oil adds ethanol, and mixing 60min, forms grease structure;
(5) residual ion liquid is divided into 3 times slowly to add in reaction vessel, keeps 6min respectively, then continue to add anti-wear additive, be heated to 90 DEG C, and keep 50min;
(6) lubricating grease that step (5) obtains is down to room temperature, three-roll grinder grinds 2 times, obtains product conductive paste composition.
Embodiment 4
A kind of electric power abrasive conductive paste composition, comprises the raw material of following parts by weight: base oil: 58%, ionic liquid: 15%, viscosifying agent: 21%, anti-wear additive: 6%.
Described anti-wear additive is silicon nitride and stearic acid, and both weight ratios are 1:1.
Described base oil is polyvinyl ether, polyphenylene oxide and poly-alpha-olefin PAO25, and three's weight ratio is 1:2:1.
Described ionic liquid is BmimPF
6[C
2oHDim] [NTf
2], both weight ratios are 1:1.
Described viscosifying agent is tetrafluoroethylene and wilkinite.
The preparation method of above-mentioned conductive paste composition, comprises the following steps:
(1) each raw material is prepared by above-mentioned weight proportion;
(2) add in reaction vessel by base oil, open whipping device, then get ionic liquid weight 45% continues to add in reaction vessel, keeps 10min;
(3) viscosifying agent is slowly added in reaction vessel, keep 6min;
(4) ratio adding 2.5mL normal hexane in 1g base oil adds normal hexane, and mixing 80min, forms grease structure;
(5) residual ion liquid is divided into 3 times slowly to add in reaction vessel, keeps 8min respectively, then continue to add anti-wear additive, be heated to 100 DEG C, and keep 50min;
(6) lubricating grease that step (5) obtains is down to room temperature, three-roll grinder grinds 3 times, obtains product conductive paste composition.
Embodiment 5
A kind of electric power abrasive conductive paste composition, comprises the raw material of following parts by weight: base oil: 60%, ionic liquid: 11%, viscosifying agent: 25%, anti-wear additive: 4%.
Described anti-wear additive is silicon-dioxide and molybdenumdisulphide, and both weight ratios are 3:1.
Described base oil is poly-alpha-olefin PA040.
Described ionic liquid is [Hmim] [C
3nO
4s
2f
6].
Described viscosifying agent is wilkinite and silica gel, and both weight ratios are 1:1.
The preparation method of above-mentioned conductive paste composition, comprises the following steps:
(1) each raw material is prepared by above-mentioned weight proportion;
(2) add in reaction vessel by base oil, open whipping device, then get ionic liquid weight 50% continues to add in reaction vessel, keeps 5min;
(3) viscosifying agent is slowly added in reaction vessel, keep 8min;
(4) ratio adding 3mL normal hexane in 1g base oil adds normal hexane, and mixing 60min, forms grease structure;
(5) residual ion liquid is divided into 3 times slowly to add in reaction vessel, keeps 5min respectively, then continue to add anti-wear additive, be heated to 90 DEG C, and keep 40min;
(6) lubricating grease that step (5) obtains is down to room temperature, three-roll grinder grinds 3 times, obtains product conductive paste composition.
Embodiment 6
A kind of electric power abrasive conductive paste composition, comprises the raw material of following parts by weight: base oil: 62%, ionic liquid: 8%, viscosifying agent: 29%, anti-wear additive: 1%.
Described anti-wear additive is boron nitride.
Described base oil is poly-alpha-olefin PAO25 and PAO40.
Described ionic liquid is BmimCF
3sO
3and BmimBF
4, both weight ratios are 1:2.
Described viscosifying agent is tetrafluoroethylene.
The preparation method of above-mentioned conductive paste composition, comprises the following steps:
(1) each raw material is prepared by above-mentioned weight proportion;
(2) add in reaction vessel by base oil, open whipping device, then get ionic liquid weight 55% continues to add in reaction vessel, keeps 5min;
(3) viscosifying agent is slowly added in reaction vessel, keep 10min;
(4) ratio adding 3mL sherwood oil in 1g base oil adds sherwood oil, and mixing 80min, forms grease structure;
(5) residual ion liquid is divided into 2 times slowly to add in reaction vessel, keeps 10min respectively, then continue to add anti-wear additive, be heated to 110 DEG C, and keep 30min;
(6) lubricating grease that step (5) obtains is down to room temperature, three-roll grinder grinds 2 times, obtains product conductive paste composition.
Embodiment 7
A kind of electric power abrasive conductive paste composition, comprises the raw material of following parts by weight: base oil: 67%, ionic liquid: 8%, viscosifying agent: 20%, anti-wear additive: 5%.
Described anti-wear additive is boron nitride, silicon-dioxide and stearic acid, and three's weight ratio is 1:2:3.
Described base oil is polyalkylene glycol and poly-alpha-olefin PAO40.
Described ionic liquid is HmimBF
4[Hmim] [C
3nO
4s
2f
6], both weight ratios are 1:3.
Described viscosifying agent is tetrafluoroethylene.
The preparation method of above-mentioned conductive paste composition, comprises the following steps:
(1) each raw material is prepared by above-mentioned weight proportion;
(2) add in reaction vessel by base oil, open whipping device, then get ionic liquid weight 50% continues to add in reaction vessel, keeps 5min;
(3) viscosifying agent is slowly added in reaction vessel, keep 5min;
(4) ratio adding 2.7mL normal hexane in 1g base oil adds normal hexane, and mixing 60min, forms grease structure;
(5) residual ion liquid is divided into 3 times slowly to add in reaction vessel, keeps 6min respectively, then continue to add anti-wear additive, be heated to 80 DEG C, and keep 40min;
(6) lubricating grease that step (5) obtains is down to room temperature, three-roll grinder grinds 3 times, obtains product conductive paste composition.
Embodiment 8
A kind of electric power abrasive conductive paste composition, comprises the raw material of following parts by weight: base oil: 70%, ionic liquid: 5%, viscosifying agent: 22%, anti-wear additive: 3%.
Described anti-wear additive is molybdenumdisulphide.
Described base oil is polyvinyl ether and polyalkylene glycol, and both weight ratios are 1:1.
Described ionic liquid is BmimBF
4and BmimSbF
6, both weight ratios are 2:1.
Described viscosifying agent is the mixing of tetrafluoroethylene, wilkinite and silica gel, and three's weight ratio is 3:1:1.
The preparation method of above-mentioned conductive paste composition, comprises the following steps:
(1) each raw material is prepared by above-mentioned weight proportion;
(2) add in reaction vessel by base oil, open whipping device, then get ionic liquid weight 55% continues to add in reaction vessel, keeps 6min;
(3) viscosifying agent is slowly added in reaction vessel, keep 8min;
(4) ratio adding 2.2mL ethanol in 1g base oil adds ethanol, and mixing 50min, forms grease structure;
(5) residual ion liquid is divided into 3 times slowly to add in reaction vessel, keeps 8min respectively, then continue to add anti-wear additive, be heated to 80 DEG C, and keep 40min;
(6) lubricating grease that step (5) obtains is down to room temperature, three-roll grinder grinds 3 times, obtains product conductive paste composition.
The performance test results of the electric power abrasive conductive paste composition prepared by the embodiment of the present invention 1 ~ 8 is in table 1.
Electric power prepared by table 1 embodiment of the present invention 1 ~ 8 performance test results of abrasive conductive paste composition
Surface, aluminium row overlapping splice place forms the test result of contact resistance in table 2.
Surface, table 2 aluminium row overlapping splice place forms the test result of contact resistance
As can be seen from table 1 and table 2, electric power abrasive conductive paste composition dropping point of the present invention is high, and volume specific resistance is little, frictional coefficient is little, and abrasion resistance is good, and conductivity is good, the contact resistance produced is little, can be widely used in the contact surface of conductive material conventional in power engineering.
Claims (9)
1. an electric power abrasive conductive paste composition, is characterized in that, comprises the raw material of following weight percentage: base oil: 50 ~ 70%, ionic liquid: 5 ~ 20%, viscosifying agent: 20 ~ 35%.
2. electric power abrasive conductive paste composition according to claim 1, is characterized in that, also comprise the anti-wear additive of weight percentage 1 ~ 10%.
3. electric power abrasive conductive paste composition according to claim 2, is characterized in that, described anti-wear additive is at least one in boron nitride, silicon nitride, silicon-dioxide, stearic acid and molybdenumdisulphide.
4. electric power abrasive conductive paste composition according to claim 1, is characterized in that, described base oil is at least one in polyvinyl ether, polyphenylene oxide, polyalkylene glycol and poly-alpha-olefin.
5. electric power abrasive conductive paste composition according to claim 4, is characterized in that, described poly-alpha-olefin is PAO25 and/or PAO40.
6. electric power abrasive conductive paste composition according to claim 1, it is characterized in that, described ionic liquid is 1-butyl-3-methyl imidazolium tetrafluoroborate, 1-hexyl-3-methyl imidazolium tetrafluoroborate, 1-butyl-3-Methylimidazole hexafluoro antimonate, 1-butyl-3-Methylimidazole hexafluorophosphate, 1-(2-hydroxyethyl) the two trifluoromethanesulfonimide salt of-3-decyl imidazoles, 1-hexyl-3-Methylimidazole 1,1,2,2, at least one in 3,3-HFC-236fa-1,3-di-sulfonyl imides salt and 1-butyl-3-Methylimidazole fluoroform sulphonate.
7. electric power abrasive conductive paste composition according to claim 1, is characterized in that, described viscosifying agent is at least one in tetrafluoroethylene, wilkinite and silica gel.
8. a preparation method for electric power abrasive conductive paste composition as claimed in claim 1, is characterized in that, comprise the following steps:
(1) each raw material is prepared by described weight proportion;
(2) base oil is added in reaction vessel, open whipping device, then get 45 ~ 55% of ionic liquid weight and add in reaction vessel, keep 5 ~ 10min;
(3) viscosifying agent is slowly added in reaction vessel, keep 5 ~ 10min;
(4) ratio adding 2 ~ 3mL easy volatile solvent in 1g base oil adds easy volatile solvent, and mixing 40 ~ 80min, forms grease structure;
(5) residual ion liquid is divided into 2 ~ 3 times slowly to add in reaction vessel, keeps 5 ~ 10min respectively, reheat to 80 ~ 110 DEG C, and keep 30 ~ 60min;
(6) lubricating grease that step (5) obtains is down to room temperature, three-roll grinder grinds 2 ~ 3 times, obtains product conductive paste composition.
9. the preparation method of electric power abrasive conductive paste composition according to claim 8, is characterized in that, the easy volatile solvent described in step (4) is at least one in normal hexane, ethanol and sherwood oil.
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| CN107033607A (en) * | 2017-05-19 | 2017-08-11 | 汪建军 | A kind of corrosion-resistant high-temperature macromolecule electric force compounded grease composition and preparation method thereof |
| CN107267262A (en) * | 2017-05-25 | 2017-10-20 | 曹平 | A kind of novel flame-retardant conductive lubricating cream |
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| CN109054966A (en) * | 2018-09-21 | 2018-12-21 | 长沙德驰润滑油脂有限公司 | A kind of polyaniline lubricating grease and preparation method thereof |
| CN109868177A (en) * | 2019-02-20 | 2019-06-11 | 张丹 | A kind of high-performance lubricating grease and preparation method thereof |
| CN110964588A (en) * | 2019-10-30 | 2020-04-07 | 惠州学院 | High-conductivity lubricating additive and preparation method and application thereof |
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Cited By (11)
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| CN106205770A (en) * | 2016-07-12 | 2016-12-07 | 无锡市华东电力设备有限公司 | Heat-resisting conductive metal paste and preparation method thereof |
| CN107033607A (en) * | 2017-05-19 | 2017-08-11 | 汪建军 | A kind of corrosion-resistant high-temperature macromolecule electric force compounded grease composition and preparation method thereof |
| CN107267262A (en) * | 2017-05-25 | 2017-10-20 | 曹平 | A kind of novel flame-retardant conductive lubricating cream |
| CN107828464A (en) * | 2017-10-17 | 2018-03-23 | 国网江苏省电力公司盐城供电公司 | A kind of electric power conductive paste composition and preparation method thereof |
| CN112534028A (en) * | 2018-07-31 | 2021-03-19 | 株式会社哈维斯 | Grease composition, complex base oil type grease composition, lubricant composition, and polypropylene resin member |
| CN109054966A (en) * | 2018-09-21 | 2018-12-21 | 长沙德驰润滑油脂有限公司 | A kind of polyaniline lubricating grease and preparation method thereof |
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| CN109868177A (en) * | 2019-02-20 | 2019-06-11 | 张丹 | A kind of high-performance lubricating grease and preparation method thereof |
| CN110964588A (en) * | 2019-10-30 | 2020-04-07 | 惠州学院 | High-conductivity lubricating additive and preparation method and application thereof |
| CN112247401A (en) * | 2020-10-15 | 2021-01-22 | 北京工业大学 | High-temperature-resistant conductive lubricating grease for solid welding wire without copper plating special coating |
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Application publication date: 20151230 |