CN105886074B - Molybdenum disulfide lubricates spray and preparation method thereof - Google Patents
Molybdenum disulfide lubricates spray and preparation method thereof Download PDFInfo
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- CN105886074B CN105886074B CN201610237228.1A CN201610237228A CN105886074B CN 105886074 B CN105886074 B CN 105886074B CN 201610237228 A CN201610237228 A CN 201610237228A CN 105886074 B CN105886074 B CN 105886074B
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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
- C10M169/04—Mixtures of base-materials and additives
- C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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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
- C10M2201/06—Metal compounds
- C10M2201/061—Carbides; Hydrides; Nitrides
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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
- C10M2201/06—Metal compounds
- C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
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- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/065—Sulfides; Selenides; Tellurides
- C10M2201/066—Molybdenum sulfide
- C10M2201/0663—Molybdenum sulfide used as base material
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- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/086—Chromium oxides, acids or salts
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/287—Partial esters
- C10M2207/289—Partial esters containing free hydroxy groups
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- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2211/02—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions containing carbon, hydrogen and halogen only
- C10M2211/022—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions containing carbon, hydrogen and halogen only aliphatic
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
- C10M2215/22—Heterocyclic nitrogen compounds
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2217/045—Polyureas; Polyurethanes
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- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/02—Unspecified siloxanes; Silicones
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/04—Detergent property or dispersant property
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- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/08—Resistance to extreme temperature
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Abstract
The invention discloses molybdenum disulfide to lubricate spray, including following components in percentage by weight: molybdenum disulfide powder 15~25%, modified epoxy 30~40%, quick-drying auxiliary agent 10~20%, high temperature resistant auxiliary agent 2~8%, coalescing agent 10~20%, binding force reinforcing agent 5~15%.For molybdenum disulfide lubrication spray of the invention using simply, conveniently, having good quick-drying and temperature tolerance, heatproof section is -180~450 DEG C, be can be used in hyperthermal environments, ultra-low temperature surroundings, while having good lubricity, wearability and resistance to extreme pressure.
Description
Technical field
The invention belongs to solid lubrication technology fields, are related to a kind of for reducing the solid to rub between two rubbing surfaces profit
Sliding spray more particularly to a kind of molybdenum disulfide lubrication spray and preparation method thereof.
Background technique
Lubrication is a kind of phenomenon, is the performance of friction level between two rubbing surfaces.Generally by being filled out between rubbing surface
Add lubricant to achieve the purpose that lubrication.The effects of by the lubrication of lubricant, antirust, vibration damping, sealing, transmitting power, to reach
To the service performance and service life that improve machine and the purpose for reducing energy consumption.
The mode of lubrication is mainly by hydrodynamic lubrication, fluid lubrication and three kinds of solid lubrication, in which: 1. hydrodynamic lubrication (lubrication
Oil) lubricating system that belongs to most original is exactly to be played lubrication between lubricating oil coating and frictional contact surface and reduced frictional force
Effect is commonly vegetable oil and mineral oil or synthetic oil etc.；2. fluid lubrication is also referred to as semisolid or semi-liquid lubrication, between liquid
It is common for pasty lubricant grease, common animal oil esterification or synthesis etc. between body lubrication and solid lubrication；3. solid lubrication
(solid lubricant coating) originates from modern age, is resistance to simultaneously in resistance to ultralow temperature to adapt to the lubrication components of aerospace flight vehicle
In the case that superhigh temperature requires, there is scientist's discovery lubricity, wearability, resistance to extreme pressure to have wider high-low temperature resistant area simultaneously
Between attribute high-quality lubriation material, mainly molybdenum disulfide and tungsten disulfide etc..
Traditional hydrodynamic lubrication and fluid lubrication, as patent " a kind of manganese dioxide fluid lubricant of CN 102965179A and
Preparation method ", which discloses a kind of fluid lubricant, realizes electro-deposition in piece surface, has preferable uniformity and combination
Power；Patent " a kind of dry film lubricant based on modified epoxy resin of CN 101838576A and preparation method thereof " is disclosed using coupling agent
The good combination properties modified lubricant such as tribological property, intensity, toughness, weatherability, corrosion resistance is made in modified inorganic nano-particle.
And currently, mode of the applying solid lubriation material as lubrication has been developed in the prior art, for solving completely or partially
The application form of conventional lubrication mode, solid lubricant mainly has: 1. coating: by solid lubricant
It is made into coating with binder, diluent, auxiliary agent mixing, rubbing surface is coated on the mode brushed and sprayed and forms one layer of solid profit
Stratum synoviale plays the role of lubricating and wear-resisting；2. spray: mixing and be made into painting solid lubricant and binder, diluent, auxiliary agent
Material and propellants are packed into aerosol can, can press the valve of aerosol can when in use, and lubrication liquid material is sprayed to and needs to moisten
Sliding position, plays lubricating action, as patent " preparation method of CN 103952693A molybdenum disulfide self-lubricating composite coating and
Self-lubrication pad " discloses a kind of lubricant coating that wearability is good；" a kind of bonded solid lubricant of CN 104497738A applies patent
Material " has good wearability, corrosion resistance, self-lubrication and high temperature resistance.
Above-mentioned existing lubricant is widely used in terms of the lubrication of every field, anti-attrition, the advantage is that succession is practised
It is used, using simple, short-period cost is cheap, disadvantage thereof however is that greasy property is limited, heatproof section is smaller, intolerant to ultralow temperature,
Superhigh temperature resistant, resistance to extreme pressure be not poor, standing cost is higher.In conclusion at present for molybdenum disulfide lubrication spray use compared with
It is few, and its anti-extreme pressure energy, abrasion resistance, high temperature resistance also need to be improved.
Summary of the invention
The present invention is to solve the above problem in the prior art, proposes molybdenum disulfide lubrication spray and preparation method thereof, main
It is used to reduce the molybdenum disulfide lubrication spray to rub between two rubbing surfaces (i.e. friction pair face), molybdenum disulfide lubrication spray
Agent uses simply, easy to carry；Lubricity is good；Wear-resisting property is good；Resistance to extreme pressure is good；Heatproof section is wide；It is long-acting at low cost.It can root
According to the adjustment of formula rate, three kinds of quick-dry type, high temperature resistant type and popular style are produced.
Solid lubricant and binder, diluent, auxiliary agent are mixed and are made into painting by molybdenum disulfide lubrication spray of the invention
Material and propellants are packed into aerosol can, can press the valve of aerosol can when in use, and lubrication liquid material is sprayed to and needs to moisten
Sliding position, plays lubricating action.The component proportion of molybdenum disulfide lubrication spray described herein is to be added without propellant
Molybdenum disulfide lubricates spray total weight.
To achieve the above object, the invention adopts the following technical scheme:
The first aspect of the invention is to provide molybdenum disulfide lubrication spray, including following components in percentage by weight:
Further, by the total weight of molybdenum disulfide lubrication spray, the molybdenum disulfide lubrication spray further includes 3-5%
Silicon hydrocarbon (SiCH) lubricating oil and 2-6% caprolactam, the compounding structure of molybdenum disulfide, silicon hydrocarbon lubricating oil and caprolactam
At MoS2 film/composite lubricated system of SiCH oil, with soft, intensity is high, elastic big, good in oxidation resistance, corrosion resistance
The feature good, friction factor is small, wear rate is low.
Further, the molybdenum disulfide lubricates spray, including following components in percentage by weight:
It further, further include silicon hydrocarbon (SiCH) profit of 3.5-4.5% by the total weight of molybdenum disulfide lubrication spray
The caprolactam of lubricating oil, 4-5%.
Further, the molybdenum disulfide lubricates spray, including following components in percentage by weight:
Further, the molybdenum disulfide lubricates spray, including following components in percentage by weight:
Further, the partial size of the molybdenum disulfide powder is 80-200nm.
Further, the partial size of the molybdenum disulfide powder is 80-150nm.
Further, the partial size of the molybdenum disulfide powder is 90-100nm.
Further, the modified epoxy is epoxy modified acrylic resin.
Further, the quick-drying auxiliary agent by weight percentage by methylene chloride 40~50%, dehydrated alcohol 50~
60% is formulated.
Further, the high temperature resistant is helped selected from chrome green, zirconium dioxide, aluminum oxide, boron carbide, carbonization
One or more of silicon, boron nitride.
Further, the coalescing agent by weight percentage by propylene glycol phenylate 75~80%, alcohol ester 12~
25% is formulated.
It is further preferred that by the total weight of molybdenum disulfide lubrication spray, the molybdenum disulfide lubrication spray further includes
The cubic boron nitride (CBN) of 0.02-0.05%, preferably 0.03% cubic boron nitride (CBN), the partial size of cubic boron nitride are
80-200nm, cubic boron nitride (CBN) are compounded with molybdenum disulfide, silicon hydrocarbon lubricating oil, are had at high temperature under high pressure excellent
Anti-wear and wear-resistant performance, friction factor increases with increasing temperature, reduces with the increase of pressure.
Further, the binding force reinforcing agent is polyurethane modified epoxy resin.
The second aspect of the invention is to provide the preparation method of molybdenum disulfide lubrication spray, comprising the following steps:
(1) molybdenum disulfide powder, modified epoxy and high temperature resistant auxiliary agent for weighing formula ratio, in 30-35 DEG C of temperature
Under the conditions of 100-120r/min stir 5min, be uniformly mixed, obtain mixture A；
(2) remaining raw material is stirred into 10-50min in 200-250r/min, is uniformly mixed, obtains mixture B；
(3) mixture A, mixture B are put into Scattered Kettle and is stirred, at normal temperature 200-250r/min dispersion stirring 20-
After 30 minutes, spray slack tank is added and carries out canned, sealing；
(4) under normal temperature and pressure, propellant is added in spray tank, valve, bottle cap, inspection, vanning are installed.
Further, propellant is nitrogen or dimethyl ether in the step (4).
The present invention by adopting the above technical scheme, compared with prior art, has the following technical effect that
Tank liquid is sprayed to workpiece surface 2 seconds i.e. using simple, easy to carry by molybdenum disulfide lubrication spray of the invention
Can surface drying, have good quick-drying；After use, lubrication interface cleanness is clean, and non-sticky ash is dirty；It can substitute or part substitution passes
System lubricating system；Heat-resisting quantity --- heatproof section can be used in hyperthermal environments, ultra-low temperature surroundings and want at -180~450 DEG C
Seek the environment that temperature change is bigger；Lubricity --- coefficient of friction can reach 0.05, wearability --- carrying 15kg/CM2, revolving speed
600RPM, fretting wear 30min；Resistance to extreme pressure --- extreme pressure carries 180kg/CM2, there is good lubricity, wearability, resistance to
Extreme pressure property；Molybdenum disulfide of the invention simultaneously can produce quick-dry type, high temperature resistant type and popular style three according to the adjustment of formula rate
The different types of lubricant of kind, has wide applicability.
Specific embodiment
The present invention provides molybdenum disulfide lubrication spray and preparation method thereof, which lubricates spray and uses simply,
It is easy to carry；After use, lubrication interface cleanness is clean, and non-sticky ash is dirty；It can substitute or part substitutes conventional lubrication mode；It can make
For hyperthermal environments, ultra-low temperature surroundings and the environment for requiring temperature change bigger；Good lubricity, wearability, resistance to pole
Pressure property；Wide applicability, applicability and usability.
The present invention is described in more detail below by specific embodiment, for a better understanding of the present invention,
But following embodiments are not intended to limit the scope of the invention.
1 quick-dry type molybdenum disulfide of embodiment lubricates the preparation of spray, including following components in percentage by weight:
Specific preparation method:
(1) molybdenum disulfide powder, modified epoxy and high temperature resistant auxiliary agent for weighing formula ratio, in 30-35 DEG C of temperature
Under the conditions of 100-120r/min stir 5min, be uniformly mixed, obtain mixture A；
(2) remaining raw material is stirred into 10-50min in 200-250r/min, is uniformly mixed, obtains mixture B；
(3) mixture A, mixture B are put into Scattered Kettle and is stirred, at normal temperature 200-250r/min dispersion stirring 20-
After 30 minutes, spray slack tank is added and carries out filling, sealing；
(4) under normal temperature and pressure, propellant is added in spray tank, valve, bottle cap, inspection, vanning are installed.
2 heat-resistance type molybdenum disulfide of embodiment lubricates the preparation of spray, including following components in percentage by weight:
Specific preparation method:
(1) molybdenum disulfide powder, modified epoxy and high temperature resistant auxiliary agent for weighing formula ratio, in 30-35 DEG C of temperature
Under the conditions of 100-120r/min stir 5min, be uniformly mixed, obtain mixture A；
(2) remaining raw material is stirred into 10-50min in 200-250r/min, is uniformly mixed, obtains mixture B；
(3) mixture A, mixture B are put into Scattered Kettle and is stirred, at normal temperature 200-250r/min dispersion stirring 20-
After 30 minutes, spray slack tank is added and carries out filling, sealing；
(4) under normal temperature and pressure, propellant is added in spray tank, valve, bottle cap, inspection, vanning are installed.
The preparation of the popular molybdenum disulfide lubrication spray of embodiment 3, including following components in percentage by weight:
Specific preparation method:
(1) molybdenum disulfide powder, modified epoxy and high temperature resistant auxiliary agent for weighing formula ratio, in 30-35 DEG C of temperature
Under the conditions of 100-120r/min stir 5min, be uniformly mixed, obtain mixture A；
(2) remaining raw material is stirred into 10-50min in 200-250r/min, is uniformly mixed, obtains mixture B；
(3) mixture A, mixture B are put into Scattered Kettle and is stirred, at normal temperature 200-250r/min dispersion stirring 20-
After 30 minutes, spray slack tank is added and carries out filling, sealing；
(4) under normal temperature and pressure, propellant is added in spray tank, valve, bottle cap, inspection, vanning are installed.
4 molybdenum disulfide of embodiment lubricates the preparation of spray, including following components in percentage by weight:
Specific preparation method:
(1) molybdenum disulfide powder, modified epoxy, high temperature resistant auxiliary agent and the silicon hydrocarbon lubricating oil for weighing formula ratio,
100-120r/min stirs 5min under the conditions of 30-35 DEG C of temperature, is uniformly mixed, obtains mixture A；
(2) remaining raw material is stirred into 10-50min in 200-250r/min, is uniformly mixed, obtains mixture B；
(3) mixture A, mixture B are put into Scattered Kettle and is stirred, at normal temperature 200-250r/min dispersion stirring 20-
After 30 minutes, spray slack tank is added and carries out filling, sealing；
(4) under normal temperature and pressure, propellant is added in spray tank, valve, bottle cap, inspection, vanning are installed.
5 molybdenum disulfide of embodiment lubricates the preparation of spray, including following components in percentage by weight:
Specific preparation method:
(1) molybdenum disulfide powder, modified epoxy, high temperature resistant auxiliary agent and the silicon hydrocarbon lubricating oil for weighing formula ratio,
100-120r/min stirs 5min under the conditions of 30-35 DEG C of temperature, is uniformly mixed, obtains mixture A；
(2) remaining raw material is stirred into 10-50min in 200-250r/min, is uniformly mixed, obtains mixture B；
(3) mixture A, mixture B are put into Scattered Kettle and is stirred, at normal temperature 200-250r/min dispersion stirring 20-
After 30 minutes, spray slack tank is added and carries out filling, sealing；
(4) under normal temperature and pressure, propellant is added in spray tank, valve, bottle cap, inspection, vanning are installed.
Specific embodiments of the present invention are described in detail above, but it is merely an example, the present invention is simultaneously unlimited
It is formed on particular embodiments described above.To those skilled in the art, any couple of present invention carries out equivalent modifications and
Substitution is also all among scope of the invention.Therefore, without departing from the spirit and scope of the invention made by equal transformation and
Modification, all should be contained within the scope of the invention.
Claims (4)
1. a kind of molybdenum disulfide lubricates spray, which is characterized in that including following components in percentage by weight:
Molybdenum disulfide powder 15 ~ 25%
Modified epoxy 30 ~ 40%
Quick-drying auxiliary agent 10 ~ 20%
High temperature resistant auxiliary agent 2 ~ 8%
Coalescing agent 10 ~ 20%
Binding force reinforcing agent 5 ~ 15%
Wherein, the partial size of the molybdenum disulfide powder is 80-200nm；
The coalescing agent is formulated by propylene glycol phenylate 75 ~ 80%, alcohol ester 12 ~ 25% by weight percentage；
It further include the caprolactam of silicon hydrocarbon (SiCH) lubricating oil of 3.5-4.5%, 4-5%；
The modified epoxy is epoxy modified acrylic resin；
The quick-drying auxiliary agent is formulated by methylene chloride 40 ~ 50%, dehydrated alcohol 50 ~ 60% by weight percentage；
The high temperature resistant helps one in chrome green, zirconium dioxide, aluminum oxide, boron carbide, silicon carbide, boron nitride
Kind is several；
The binding force reinforcing agent is polyurethane modified epoxy resin.
2. molybdenum disulfide according to claim 1 lubricates spray, which is characterized in that the group including following weight percent
Point:
Molybdenum disulfide powder 20 ~ 22%
Modified epoxy 36 ~ 38%
Quick-drying auxiliary agent 14 ~ 15%
High temperature resistant auxiliary agent 4 ~ 6%
Coalescing agent 16 ~ 17%
Binding force reinforcing agent 8 ~ 10%.
3. a kind of preparation method of the molybdenum disulfide as described in claim any one of 1-2 lubrication spray, which is characterized in that including with
Lower step:
(1) molybdenum disulfide powder, modified epoxy and high temperature resistant auxiliary agent for weighing formula ratio, in 30-35 DEG C of temperature condition
Lower 100-120r/min stirs 5min, is uniformly mixed, obtains mixture A；
(2) remaining raw material is stirred into 10-50min in 200-250r/min, is uniformly mixed, obtains mixture B；
(3) mixture A, mixture B are put into homogenizing kettle, after 200-250r/min is homogenized 20-30 minutes at 90-100 DEG C,
Room temperature is cooled to, filling slack tank is added, is encapsulated；
(4) under normal temperature and pressure, propellant is added in tank, valve bottle cap, inspection, vanning are installed.
4. preparation method according to claim 3, which is characterized in that propellant is nitrogen or diformazan in the step (4)
Ether.
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| CN112980544B (en) * | 2021-02-07 | 2022-10-28 | 广东莱雅新化工科技有限公司 | Dry film lubricant and preparation method thereof |
| CN113717776B (en) * | 2021-08-04 | 2023-07-14 | 上海海联润滑材料科技有限公司 | Film-fixing tungsten disulfide lubrication spray and preparation method thereof |
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