CN110016277A - It is used to prepare the composition, self-lubricating abrasion-resistant coating, self-lubricating wear-resistant coating, self-lubricating abrasion-proof material of self-lubricating abrasion-proof material - Google Patents
It is used to prepare the composition, self-lubricating abrasion-resistant coating, self-lubricating wear-resistant coating, self-lubricating abrasion-proof material of self-lubricating abrasion-proof material Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- 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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- 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
- 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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- C—CHEMISTRY; METALLURGY
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
Abstract
The present invention relates to a kind of composition for being used to prepare self-lubricating abrasion-proof material, self-lubricating abrasion-resistant coating, self-lubricating wear-resistant coatings, self-lubricating abrasion-proof material, belong to self-lubricating material technical field.The composition for being used to prepare self-lubricating abrasion-proof material of the invention, is mainly grouped as by the group of resin and following parts by weight: 11~12 parts of molybdenum disulfide, 0.088~0.3 part of graphene.Composition of the invention, using molybdenum disulfide as lubricant, using graphene as lubricating additive, utilize the similitude of molybdenum disulfide and graphene two-dimensional layered structure, the two according to special ratios and resin be combined wear-resistant material can play molybdenum disulfide and graphene cooperates with lubricating effect, the wear-resisting property of wear-resistant material and self-lubricating property is made to be significantly improved；Good lubrication antifriction, wear-resisting and environment self-adaption performance are all had under dry friction and sea conditions in particular by self-lubricating antifriction wear-resistant coating made from composition of the invention.
Description
Technical field
The present invention relates to a kind of composition for being used to prepare self-lubricating abrasion-proof material, self-lubricating abrasion-resistant coating, self-lubricating are resistance to
Coating, self-lubricating abrasion-proof material are ground, self-lubricating material technical field is belonged to.
Background technique
It is the effective ways for reducing friction and wear between steel/steel-steel pair in surface of friction pair coating solid lubricant coating
One of, wherein bonded solid lubricant coating because its preparation process it is simple, there is good friction and wear behavior, cost performance is high, pole
Have the advantages that commercial value, is widely used in the important work such as machine-building, chemical industry, Vehicle Engineering, aerospace, Shipping
Industry field.
Domestic common molybdenum disulfide (abbreviation MoS2) base solid lubricant, there is lamellar structure, be parallel to layer
In-plane has low-down shear strength, and intensity and extreme hardness in the direction perpendicular to layer, thus MoS2Have
Good antifriction lubrication characteristic.But due to MoS2The mechanical performance of itself is poor, and oxidation easily occurs under hot conditions to be caused to rub
It increased dramatically, the lost of life；Heavy duty, run at high speed under the conditions of, MoS2Disbonding phenomenon is serious；Furthermore pure MoS2Coating is in tide
Damp atmosphere environmental structure is loose, hardness is low and wearability is not high, thus application is limited, and lot of domestic and international scholar is carrying out always newly
Type MoS2Synthesis and its composite coating application study.
Graphene be one kind by carbon atom with sp2Hybridized orbit forms the flat film carbon materials that hexangle type is in honeycomb lattice
Material has unique crystal structure and special self-lubricating property, it is considered to be the most nano lubricating agent of application prospect；Simultaneously
It is layering in coating using graphene two-dimensional slice structure, small molecule corrosive medium (hydrone, chloride ion etc.) can be formed
Be difficult by fine and close isolation layer, play the role of physical isolation outstanding.It is shown as solid lubrication additive good
Good wear and corrosion behavior, graphene and its tribology of composite material, antiseptic property have become tribology and metal protection neck
The research hotspot in domain.
In the prior art, application publication number is that the Chinese invention patent application of CN108102514A discloses a kind of graphene
Corrosion-resistant abrasion coating, although the graphene corrosion-resistant abrasion coating improves the antiseptic property of existing coating and wear-resisting to a certain extent
Property, but bias toward technical field of metal anti-corrosion.It is more to the research of graphene-epoxy resin both at home and abroad at present, but these coatings
Though having certain anti-friction wear-resistant effect, coating layer thickness is usually at 100 μm or more, and mostly a kind of lubriation material.Such as application
A kind of solid lubricating coating is disclosed in the Chinese invention patent application that publication No. is CN103214911A, the solid lubricating coating
Flash-point be 100 DEG C, it is in black that specific gravity, which is 1100 ± 60 grams per liters, by account for total weight 2~12% molybdenum disulfide, 3~6%
Polytetrafluoroethylene (PTFE), 1~7% graphite, 0~3% graphene, 12~18% tungsten disulfide, 8~12% fluorographite,
16~34% epoxy resin, 18~29% nitro-resin and 3~9% coating additive composition.The solid lubricating coating
The anti-loosening and anti-occlusion of nut is improved, but there are still wear no resistance.
Summary of the invention
The object of the present invention is to provide a kind of compositions for being used to prepare self-lubricating abrasion-proof material, can be used for preparing high abrasion
The self-lubricating abrasion-proof material of property.
The present invention also provides a kind of self-lubricating abrasion-resistant coating with high-wearing feature.
The present invention also provides a kind of self-lubricating wear-resistant coatings with high-wearing feature.
The present invention also provides a kind of self-lubricating abrasion-proof materials with high-wearing feature.
In order to achieve the goal above, the technical solution that the composition for being used to prepare self-lubricating abrasion-proof material of the invention uses
It is:
A kind of composition being used to prepare self-lubricating abrasion-proof material is mainly grouped by the group of resin and following parts by weight
At: 11~12 parts of molybdenum disulfide, 0.088~0.3 part of graphene.
The composition for being used to prepare self-lubricating abrasion-proof material of the invention is made using molybdenum disulfide as lubricant with graphene
The two according to special ratios and is set using the similitude of molybdenum disulfide and graphene two-dimensional layered structure for lubricating additive
Rouge, which carries out being combined wear-resistant material, can play the collaboration lubricating effect of molybdenum disulfide and graphene, make the wear-resisting of wear-resistant material
Performance and self-lubricating property are significantly improved；In particular by self-lubricating antifriction wear-resistant coating made from composition of the invention
Good lubrication antifriction, wear-resisting and environment self-adaption performance are all had under dry friction and sea conditions.
In order to improve the wearability for using self-lubricating abrasion-proof material made of composition, it is preferred that the resin and two sulphur
The mass ratio for changing molybdenum is 2~3:1.
Preferably, the average grain diameter of the graphene is 0.5~2 μm.The average number of plies of the graphene is 5~7 layers.It adopts
Cost can either be reduced with the graphene of aforementioned average grain diameter and the average number of plies, while self-lubricating abrasion-proof material obtained can also be made
With more stable and excellent lubrication property.
Preferably, the average grain diameter of the molybdenum disulfide is 10~20 μm.The molybdenum disulfide powder of the particle size range is not easy
Reunite, there is good dispersibility and lubricity.
Preferably, the composition for being used to prepare self-lubricating abrasion-proof material further includes solvent；The solvent and resin
Mass ratio is 1:1~2.5.Resin can be diluted by solvent, control the quality of solvent and resin above range can be with
Making composition when in use has viscosity appropriate.
The technical solution that self-lubricating abrasion-resistant coating of the invention uses are as follows:
A kind of self-lubricating abrasion-resistant coating, including component A and component B；The component A is used to prepare self-lubricating abrasion-resistant to be above-mentioned
The composition of material；The component B includes curing agent.
No matter self-lubricating abrasion-resistant coating of the invention can be obviously improved matrix material under dry friction or briny environment
The lubricity and wearability of material, and ingredient is simple, it is easily prepared, at low cost, flow line production can be expanded.
The technical solution that self-lubricating wear-resistant coating of the invention uses are as follows:
It is a kind of using self-lubricating wear-resistant coating made from above-mentioned self-lubricating abrasion-resistant coating.
No matter self-lubricating wear-resistant coating of the invention all has excellent lubrication and is subtracted under dry friction or briny environment
The effect of rubbing.
In order to reduce cost while guaranteeing self-lubricating abrasion-proof material performance, it is preferred that the self-lubricating wear-resistant coating
With a thickness of 20~30 μm.
The technical solution that self-lubricating abrasion-proof material of the invention uses are as follows:
A kind of self-lubricating abrasion-proof material, including matrix and coated in the self-lubricating wear-resistant coating on matrix；It is described to moisten certainly
Sliding wear-resistant coating is to be coated in solidify on matrix after mixing the component A of above-mentioned self-lubricating abrasion-resistant coating with component B to obtain.
Self-lubricating abrasion-proof material of the invention, surface layer are self-lubricating wear-resistant coating of the invention, no matter in dry friction or
Excellent lubrication and antifriction function are all had under briny environment.
Detailed description of the invention
Fig. 1 is self-lubricating wear-resistant coating in 1~2 self-lubricating abrasion-proof material of the embodiment of the present invention 9~12 and comparative example
Coefficient of friction comparison diagram；
Fig. 2 is self-lubricating wear-resistant coating in 1~2 self-lubricating abrasion-proof material of the embodiment of the present invention 9~12 and comparative example
Abrasion loss comparison diagram.
Specific embodiment
Provided by the present invention for preparing the composition of self-lubricating abrasion-proof material, mainly by resin and following parts by weight
Group is grouped as: 11~12 parts of molybdenum disulfide, 0.088~0.3 part of graphene.
Used graphene is preferably that lattice is complete, the number of plies is low, graphene at low cost, environmentally friendly, batch stability.It is excellent
Choosing, the average grain diameter of the graphene is 0.5~2 μm.Still more preferably, the average grain diameter of the graphene is 1~2
μm。
Preferably, the resin is epoxy resin.It is further preferred that the epoxy resin is bisphenol A type epoxy resin.
Still more preferably, the bisphenol A type epoxy resin be bisphenol A type epoxy resin E-20, bisphenol A type epoxy resin E-44,
One of bisphenol A type epoxy resin E-51.
In order to improve the degree that is uniformly dispersed of graphene and molybdenum disulfide in composition use process, it is preferred that the use
In the composition for preparing self-lubricating abrasion-proof material further include dispersing agent.
Preferably, the dispersing agent be include dispersant B YK-204 and dispersant B YK-9076.Dispersant B YK-204 and
Dispersant B YK-9076 is produced by German Bi Ke company.Dispersant B YK-204 and dispersant B YK-9076 can be respectively to two
Molybdenum sulfide and graphene carry out preventing flocculation and wetting and dispersing processing, to be obviously improved molybdenum disulfide and graphene in resin solution
In dispersibility.
Preferably, it is used to prepare the composition of self-lubricating abrasion-proof material, is mainly composed of the following parts by weight: tree
25~35 parts of rouge, 11~12 parts of molybdenum disulfide, 0.088~0.03 part of graphene, 0.01~0.05 part of dispersing agent, solvent 54~65
Part.It is further preferred that resin in composition, molybdenum disulfide, graphene, dispersing agent and solvent total weight number be 100 parts.
Preferably, the solvent is one of ethyl alcohol, n-butanol, dimethylbenzene, acetone or any combination.
Self-lubricating abrasion-resistant coating provided by the invention, including component A and component B；The component A is above-mentioned is used to prepare
The composition of self-lubricating abrasion-proof material；The component B includes curing agent.
Preferably, the component A is mainly composed of the following parts by weight: 25~35 parts of resin, molybdenum disulfide 11
~12 parts, 0.088~0.03 part of graphene, 0.01~0.05 part of dispersing agent, 54~65 parts of solvent.It is further preferred that described
Resin in component A, molybdenum disulfide, graphene, dispersing agent and solvent total weight number be 100 parts.
Preferably, the component A preparation method the following steps are included:
Main group is provided as the molybdenum disulfide dispersion liquid of molybdenum disulfide, dispersant B YK-204 and solvent and main group
As graphene, the graphene dispersing solution of dispersant B YK-9076 and solvent；
By molybdenum disulfide dispersion liquid, graphene dispersing solution and resin dispersion uniformly to get.
Preferably, described to be uniformly dispersed including being carried out after mixing molybdenum disulfide dispersion liquid, graphene dispersing solution and resin
Grinding.It is further preferred that the revolving speed used that grinds is 1000~1400r/m, the time is at least 2h.Further preferably
, mixed system is stirred before grinding.
Preferably, the resin is epoxy resin；The curing agent is selected from EP type epoxy curing agent.
Preferably, the mass ratio of resin and the curing agent in component B is 1~4:1 in component A.
Ingredient is enumerated in addition to above-mentioned in component A and component B, coating neck can also be independently added in component A and component B
The additive of domain routine, such as anti-settling agent, defoaming agent.
Composite mortar is being made before use, component A and component B is uniformly mixed in self-lubricating abrasion-resistant coating provided by the invention
It is coated again.Coating method is usual manner, such as spraying, brushing.In order to avoid reuniting occurs in mixing unevenness so that coating
Composite mortar is filtered processing before can also coating by coating out-of-flatness afterwards.
Self-lubricating abrasion-proof material provided by the invention, including matrix and coated in the self-lubricating wear-resistant coating on matrix；
The self-lubricating wear-resistant coating is to be coated on matrix to solidify after mixing the component A of above-mentioned self-lubricating abrasion-resistant coating with component B
It obtains.
Described matrix can be the materials such as metal or rubber.Self-lubricating abrasion-proof material using metal as substrate can be used for machine
The slide unit of tool equipment, as steel/steel oscillating bearing, high-speed steel tool, the self-lubricating abrasion-proof material using rubber as substrate can
For automobile gasket seal member (exhaust system, turbo charge system) etc..
Preferably, the self-lubricating wear-resistant coating with a thickness of 20~30 μm.
Below in conjunction with specific embodiment, further description of the technical solution of the present invention.
Examples 1 to 4 is to be used to prepare the embodiment of the composition of self-lubricating abrasion-proof material, embodiment in following embodiment
5~8 be the embodiment of self-lubricating abrasion-resistant coating, and embodiment 9~12 is the embodiment of self-lubricating abrasion-proof material, and embodiment 13 is certainly
The embodiment of lubricating and wear-resisting coating.Dispersant B YK-204 and dispersant B YK-9076 used in the examples are by German Bi Ke
Company's production.
Embodiment 1
The composition for being used to prepare self-lubricating abrasion-proof material of the present embodiment is grouped as by following parts by weight for group: tree
29.373 parts of rouge, 11.749 parts of molybdenum disulfide, 0.088 part of graphene, 0.044 part of dispersing agent, 58.746 parts of solvent.
The resin used is bisphenol A type epoxy resin E-20；The average grain diameter of molybdenum disulfide is 10 μm；Graphene is averaged
Partial size is 1 μm, and the average number of plies is 7 layers；Dispersing agent is made of dispersant B YK-204 and BYK-9076, dispersant B YK-204 and
The mass ratio of BYK-9076 is 2:1；Solvent is the mixture of n-butanol, dimethylbenzene, mass ratio 2:3.
Embodiment 2
The composition for being used to prepare self-lubricating abrasion-proof material of the present embodiment, is composed of the following parts by weight: tree
29.356 parts of rouge, 11.742 parts of molybdenum disulfide, 0.147 part of graphene, 0.044 part of dispersing agent, 58.711 parts of solvent.
The resin used is bisphenol A type epoxy resin E-20；The average grain diameter of molybdenum disulfide is 18 μm；Graphene is averaged
Partial size is 2 μm, and the average number of plies is 6 layers；Dispersing agent is made of dispersant B YK-204 and BYK-9076, dispersant B YK-204 and
The mass ratio of BYK-9076 is 2:1；Solvent is the mixture of n-butanol, dimethylbenzene, mass ratio 2:3.
Embodiment 3
The composition for being used to prepare self-lubricating abrasion-proof material of the present embodiment is grouped as by following parts by weight for group: tree
29.330 parts of rouge, 11.732 parts of molybdenum disulfide, 0.235 part of graphene, 0.044 part of dispersing agent, 58.660 parts of solvent.
The resin used is bisphenol A type epoxy resin E-20；The average grain diameter of molybdenum disulfide is 13 μm；Graphene is averaged
Partial size is 1.5 μm, and the average number of plies is 5 layers；Dispersing agent is made of dispersant B YK-204 and BYK-9076, dispersant B YK-204 and
The mass ratio of BYK-9076 is 2:1；Solvent is the mixture of n-butanol, dimethylbenzene, mass ratio 2:3.
Embodiment 4
The composition for being used to prepare self-lubricating abrasion-proof material of the present embodiment is grouped as by following parts by weight for group: tree
29.31 parts of rouge, 11.725 parts of molybdenum disulfide, 0.293 part of graphene, 0.044 part of dispersing agent, 58.625 parts of solvent.
The resin used is bisphenol A type epoxy resin E-20；The average grain diameter of molybdenum disulfide is 20 μm；Graphene is averaged
Partial size is 1.2 μm, and the average number of plies is 6 layers；Dispersing agent is made of dispersant B YK-204 and BYK-9076, dispersant B YK-204 and
The mass ratio of BYK-9076 is 2:1；Solvent is the mixture of n-butanol, dimethylbenzene, mass ratio 2:3.
Embodiment 5
The self-lubricating abrasion-resistant coating of the present embodiment, including component A and component B, component A and the quality of component B are 34.045:
10；Component A is the composition for being used to prepare self-lubricating abrasion-proof material in embodiment 1, and component B is curing agent.
Curing agent is polyamide 6 50；Component A is prepared using the method included the following steps:
1) molybdenum disulfide and dispersant B YK-204 for taking formula ratio are added in the solvent of the total dosage half of solvent, and stirring is equal
It is even, MoS is made2Mixed liquor；
The dispersant B YK-9076 and graphene for taking formula ratio, sequentially add in remaining solvent, and ultrasonic disperse simultaneously stirs
Uniformly, graphene dispersing solution is made；
2) by MoS obtained in step 1)2Mixed liquor and graphene dispersing solution sequentially add in resin, and grinding is then added
Agent grinds 3~5min with the revolving speed of 350r/min, then with the revolving speed high speed grinding 2h of 1200r/min or longer time to get
The component A of self-lubricating abrasion-resistant coating.
Embodiment 6
The self-lubricating abrasion-resistant coating of the present embodiment, the difference with the self-lubricating abrasion-resistant coating in embodiment 5 are only that component A
For the composition for being used to prepare self-lubricating abrasion-proof material in embodiment 2, the mass ratio of component A and component B are 34.065:10.
Embodiment 7
The self-lubricating abrasion-resistant coating of the present embodiment, the difference with the self-lubricating abrasion-resistant coating in embodiment 5 are only that component A
For the composition for being used to prepare self-lubricating abrasion-proof material in embodiment 3, the mass ratio of component A and component B are 34.095:10.
Embodiment 8
The self-lubricating abrasion-resistant coating of the present embodiment, the difference with the self-lubricating abrasion-resistant coating in embodiment 9 are only that component A
For the composition for being used to prepare self-lubricating abrasion-proof material in embodiment 4, the mass ratio of component A and component B are 34.115:10.
Embodiment 9
The self-lubricating abrasion-proof material of the present embodiment, including matrix and coated in the self-lubricating wear-resistant coating on matrix；Matrix
For GCr15 steel, self-lubricating wear-resistant coating is coated in after mixing the component A of the self-lubricating abrasion-resistant coating of embodiment 5 and component B
It is obtained after solidifying on matrix.
The preparation method of the self-lubricating abrasion-proof material of the present embodiment, comprising the following steps:
1) it is uniformly mixed after the component A of self-lubricating abrasion-resistant coating and component B being sufficiently stirred, with the progress of middling speed quantitative filter paper
Filtering, obtains filtrate；
2) it is successively polished the working face of GCr15 steel using 240#, 400#, 600# sand paper, then 100 DEG C of preheatings
5~7min, adjust spray gun pressure 0.2MPa, in the working face spraying process 1 of GCr15 steel) obtained in filtrate, spray afterwards it is air-cooled
2h, then 150 DEG C of solidification 2h, taking-up are cooled to room temperature.Coating layer thickness is controlled at 20~30 μm.
Embodiment 10
The difference of self-lubricating abrasion-proof material in the self-lubricating abrasion-proof material of the present embodiment, with embodiment 9 is only that: preparation
The self-lubricating abrasion-resistant coating that self-lubricating wear-resistant coating uses is the self-lubricating abrasion-resistant coating in embodiment 6.
Embodiment 11
The difference of self-lubricating abrasion-proof material in the self-lubricating abrasion-proof material of the present embodiment, with embodiment 9 is only that: preparation
The self-lubricating abrasion-resistant coating that self-lubricating wear-resistant coating uses is the self-lubricating abrasion-resistant coating in embodiment 7.
Embodiment 12
The difference of self-lubricating abrasion-proof material in the self-lubricating abrasion-proof material of the present embodiment, with embodiment 9 is only that: preparation
The self-lubricating abrasion-resistant coating that self-lubricating wear-resistant coating uses is the self-lubricating abrasion-resistant coating in embodiment 8.
Embodiment 13
The self-lubricating wear-resistant coating of the present embodiment and the self-lubricating wear-resistant coating phase being coated in embodiment 9~12 on matrix
Together, details are not described herein again.
Comparative example 1
The self-lubricating abrasion-proof material of this comparative example is prepared using method comprising the following steps:
1) MoS of 4 parts by weight is taken2, 0.01 parts by weight dispersant B YK-204 be dissolved in the solvent of 10 parts by weight, glass
Stick stirs evenly, and is configured to MoS2Mixed liquor；
2) by MoS obtained in step 1)2Mixed liquor, 10 parts by weight solvent sequentially add the bisphenol A-type of 10 parts by weight
In epoxy resin E-20, and grinding agent is added, 350r/min stirs at low speed 3~5min, then grinds with 1200r/min revolving speed high speed
2h or longer time are ground, mixed liquor A is obtained；
3) it weighs after the polyamide 6s 50 of 10 parts by weight is sufficiently stirred as mixed liquor A made from curing agent and step 2) and mixes
It closes uniformly, then filters, obtain filtrate；
4) it is successively polished the working face of GCr15 steel using 240#, 400#, 600# sand paper, then 100 DEG C of preheatings
5~7min, adjust spray gun pressure 0.2MPa, in the working face spraying process 3 of GCr15 steel) obtained in filtrate, spray afterwards it is air-cooled
2h, then 150 DEG C of solidification 2h, taking-up are cooled to room temperature.Coating layer thickness is controlled at 20~30 μm.
For the solvent used in comparative example for n-butanol, the mixed liquor of dimethylbenzene, the mass ratio of n-butanol and dimethylbenzene is 2:
3。
Comparative example 2
The difference of self-lubricating abrasion-proof material in the self-lubricating abrasion-proof material of this comparative example, with embodiment 9 is only that: preparation
The component A of the self-lubricating abrasion-resistant coating used in the process is composed of the following parts by weight: 29.270 parts of resin, curing
11.707 parts of molybdenum, 0.439 part of graphene, 0.044 part of dispersing agent, 58.539 parts of solvent.
Experimental example
Respectively to self-lubricating abrasion-proof material in embodiment 9~12 and comparative example 1~2 under dry friction, briny environment
Self-lubricating wear-resistant coating carries out friction-wear test, wherein friction-wear test parameter are as follows:
Dry friction: normal load 10N, motor speed 150r/min, the length that reciprocatingly slides are 10mm, sliding time
15min is carried out at room temperature；
Sea conditions: artificial seawater, the same dry friction of other test conditions are simulated using the NaCl solution of 3.5wt%；
Opposite grinding part: GCr15 steel ball, steel ball size Φ 6mm.
Test result is shown in Table 1 and Fig. 1~2.
The performance test of self-lubricating wear-resistant coating in the self-lubricating abrasion-proof material of 1 embodiment 9~12 of table and comparative example 1~2
As a result
As shown in Figure 1, at room temperature, containing graphene provided by the invention and MoS under dry friction, briny environment2Self-lubricating
The coefficient of friction of wear-resistant coating is significantly less than the MoS of comparative example 1~22Bonded solid lubricant coating shows of the invention containing stone
Black alkene and MoS2Self-lubricating wear-resistant coating have excellent lubrication and antifriction function；As shown in Figure 2, either dry friction is still
Under briny environment, containing graphene of the invention and MoS2The abrasion loss of self-lubricating wear-resistant coating be below the MoS of comparative example 12It is viscous
Solid lubricant coating is tied, shows to add suitable graphene, MoS can be improved2The wearability of bonded solid lubricant coating.Especially
The self-lubricating wear-resistant coating and comparative example 2 of the self-lubricating abrasion-proof material of embodiment 9~12 compare the addition it is found that graphene
There are an optimum ranges for amount, once exceeding the range, being easy to reunite when the content of graphene is higher leads to the object of composite material
Mechanical performance decline is managed, coefficient of friction and abrasion loss also will increase.
Friction and wear behavior of the self-lubricating wear-resistant coating under dry friction and sea conditions is compared, finds composite coating in sea
Abrasion loss and coefficient of friction in water are below dry friction, this is because containing graphene and MoS2Self-lubricating wear-resistant coating tool
There is good corrosion resistance and has caused by preferable greasy property in briny environment.By table 1 and Fig. 1~2 it is found that originally
The containing graphene provided and MoS are provided2Self-lubricating wear-resistant coating good lubrication is all had under dry friction and sea conditions
Antifriction, wear-resisting property, therefore there is certain environment self-adaption.
Claims (10)
1. a kind of composition for being used to prepare self-lubricating abrasion-proof material, it is characterised in that: mainly by resin and following parts by weight
Group be grouped as: 11~12 parts of molybdenum disulfide, 0.088~0.3 part of graphene.
2. the composition according to claim 1 for being used to prepare self-lubricating abrasion-proof material, it is characterised in that: the resin with
The mass ratio of molybdenum disulfide is 2~3:1.
3. the composition according to claim 1 for being used to prepare self-lubricating abrasion-proof material, it is characterised in that: the graphene
Average grain diameter be 0.5~2 μm.
4. the composition according to claim 1 for being used to prepare self-lubricating abrasion-proof material, it is characterised in that: the graphene
The average number of plies be 5~7 layers.
5. the composition according to claim 1 for being used to prepare self-lubricating abrasion-proof material, it is characterised in that: the curing
The average grain diameter of molybdenum is 10~20 μm.
6. the composition according to claim 1 for being used to prepare self-lubricating abrasion-proof material, it is characterised in that: the composition
It further include solvent；The mass ratio of the solvent and resin is 1:1~2.5.
7. a kind of self-lubricating abrasion-resistant coating, it is characterised in that: including component A and component B；The component A is such as claim 1 institute
That states is used to prepare the composition of self-lubricating abrasion-proof material；The component B includes curing agent.
8. a kind of using self-lubricating wear-resistant coating made from self-lubricating abrasion-resistant coating as claimed in claim 7.
9. self-lubricating wear-resistant coating according to claim 8, it is characterised in that: the self-lubricating wear-resistant coating with a thickness of
20~30 μm.
10. a kind of self-lubricating abrasion-proof material, it is characterised in that: applied including matrix and coated in the self-lubricating abrasion-resistant on matrix
Layer；The self-lubricating wear-resistant coating is after mixing the component A of self-lubricating abrasion-resistant coating as claimed in claim 7 with component B
It is obtained coated in solidification on matrix.
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| CN201910375103.9A CN110016277A (en) | 2019-05-07 | 2019-05-07 | It is used to prepare the composition, self-lubricating abrasion-resistant coating, self-lubricating wear-resistant coating, self-lubricating abrasion-proof material of self-lubricating abrasion-proof material |
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| CN201910375103.9A CN110016277A (en) | 2019-05-07 | 2019-05-07 | It is used to prepare the composition, self-lubricating abrasion-resistant coating, self-lubricating wear-resistant coating, self-lubricating abrasion-proof material of self-lubricating abrasion-proof material |
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Application publication date: 20190716 |