CN113527980A - Composite nano-based wear-resistant coating material - Google Patents

Composite nano-based wear-resistant coating material Download PDF

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Publication number
CN113527980A
CN113527980A CN202110922169.2A CN202110922169A CN113527980A CN 113527980 A CN113527980 A CN 113527980A CN 202110922169 A CN202110922169 A CN 202110922169A CN 113527980 A CN113527980 A CN 113527980A
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China
Prior art keywords
coating material
resistant coating
parts
composite nano
wear
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Pending
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CN202110922169.2A
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Chinese (zh)
Inventor
顾文良
蒋成祥
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Maglev Lubricating Oil Suzhou Co ltd
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Maglev Lubricating Oil Suzhou Co ltd
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Priority to CN202110922169.2A priority Critical patent/CN113527980A/en
Publication of CN113527980A publication Critical patent/CN113527980A/en
Pending legal-status Critical Current

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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
    • 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
    • C09D179/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09D161/00 - C09D177/00
    • C09D179/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
    • C09D179/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • 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
    • 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
    • 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
    • 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
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Lubricants (AREA)

Abstract

The invention provides a composite nano-based wear-resistant coating material, which relates to the technical field of chemical lubricating coatings and comprises an epoxy resin or polyimide resin solution, an organic amine substance, an accelerator, a coupling agent, a thixotropic agent, a lubricant, a wear-resistant additive, carbon fibers, a dispersant, a flatting agent and a solvent, wherein the wear-resistant coating material is synthesized according to a certain proportion. The coating material can work in a high-temperature and high-pressure working environment, is corrosion-resistant, wear-resistant, low in friction coefficient and excellent in high and low temperature resistance, can obviously prolong the service life of a protected device, reduces friction power consumption and has a good application prospect.

Description

Composite nano-based wear-resistant coating material
Technical Field
The invention relates to the technical field of chemical lubricating coatings, in particular to a composite nano-based wear-resistant coating material.
Background
Often, the surface of the substrate does not have the properties we desire. The lack of a particular property that is desired can result in degradation of the substrate surface in a particular environment, or failure to meet a particular performance requirement, or both. For example, the surfaces of metals, glasses, ceramics may be subject to wear or other unwanted surface activity under certain circumstances, such as chemisorption, catalytic reactions, corrosion, oxidation, byproduct buildup, stiction, and the like.
Many known coatings do not provide sufficient wear resistance, which can result in wear of the component surfaces, thereby shortening the service life of the component coated with the coating. Since the service environment of a component is generally complex, it is desirable to produce a coating that is resistant to both chemical degradation and physical wear of the component surface.
Disclosure of Invention
In order to solve the problems in the prior art, the composite nano-based wear-resistant coating material is prepared by the enhanced wear resistance of the high-strength carbon fibers and the composite action of the nano particles. The technical scheme is as follows:
the technical scheme provided by the invention is as follows: the composition comprises the following components in parts by weight:
10-60 parts of epoxy resin or polyimide resin solution
5-50 parts of organic amine substance
0.5-18 parts of accelerator
0.5-20 parts of coupling agent
5-20 parts of thixotropic agent
5-20 parts of lubricant
3-10 parts of wear-resistant additive
Carbon fiber 1-10
0.025-0.4 part of dispersant
0.025-0.4 parts of leveling agent
0 to 15 parts of solvent
As a further improvement of the invention, the organic amine substance is selected from one or a combination of several of phenolic aldehyde amine, condensed amine, aromatic amine, aliphatic amine, alicyclic amine and polyamide.
As a further improvement of the invention, KH550, KH560 or other coupling agents can be selected as the coupling agent.
As a further improvement of the invention, DMP-30 or other promoters can be used as the promoter.
As a further development of the invention, it is possible to use fumed or precipitated silicas as thixotropic agents.
As a further improvement of the invention, the wear-resistant additive is nano-scale antimony trioxide, copper oxide, boron nitride, silicon carbide, titanium dioxide or a mixture thereof, and nano-scale silicon carbide and titanium dioxide are preferably adopted.
As a further improvement of the invention, wherein the carbon fibers are high strength carbon fibers having a length in the range of 2 to 300 microns.
As a further improvement of the invention, the dispersant is a modified silicone dispersant.
As a further improvement of the present invention, wherein the leveling agent is an organic silicon-based leveling agent.
As a further development of the invention, wherein the solvent is N-methylpyrrolidone, xylene, dimethylformamide or mixtures thereof.
The composite nano-based wear-resistant coating material is prepared by grinding, dispersing and mixing, and is sprayed or screen-printed on the surface of a device to form a solid lubricating film after high-temperature curing for use. The dry film can be used as a lubricating wear-resistant coating of sliding friction parts of plane guide rails, plane sliding bearings, office machines such as typewriters, copying parts, textile machinery, household appliances, sliding rails, rotating shafts, engine pistons and the like, and can reduce friction and reduce the abrasion of parts. The lubricating oil disclosed by the invention is matched with aviation kerosene for use under a medium load condition, so that a good lubricating effect can be obtained, the abrasion of parts in a running-in period is reduced, and the friction is reduced or the running-in period is shortened. If the lubricating oil is applied to the engine piston, the service life of the piston can be improved by more than 20% compared with the common solid lubricating film, the friction coefficient is reduced by more than 20%, and the lubricating oil can be used in a high-temperature and high-pressure working environment.
Detailed Description
Example 1
A composite nano-base wear-resistant coating material comprises the following raw materials in parts by weight: 50g of epoxy resin solution, 5g of KH550, 10g of DMP-30, 2g of graphite, 10g of precipitated silica, 5g of molybdenum disulfide, 1g of zinc sulfide, 5g of nano titanium dioxide, 1g of carbon fiber, 0.025g of dispersing agent and 0.025g of leveling agent. Grinding and uniformly dispersing. After screen printing, the performance of the cured product was tested after 1 hour at 200 ℃.
Example 2
A carbon-carbon composite nano-based wear-resistant coating material comprises the following raw materials in parts by weight: 50g of polyimide solution, 5g of KH560, 12g of DMP-30, 5g of graphite, 10g of gas phase, 10g of molybdenum disulfide, 1g of lead oxide, 1g of zinc sulfide, 2g of antimony trioxide, 5g of nano titanium dioxide, 5g of carbon fiber, 0.1g of dispersant and 0.1g of flatting agent. Grinding and uniformly dispersing. After screen printing, the performance of the cured product is tested after 1 hour at 220 ℃.
Example 3
A carbon-carbon composite nano-based wear-resistant coating material comprises the following raw materials in parts by weight: 50g of polyimide solution, 5g of KH550, 10g of DMP-30, 12g of precipitated silica, 15g of graphite, 1g of lead oxide, 1g of zinc sulfide, 2g of antimony trioxide, 3g of silicon carbide, 5g of nano titanium dioxide, 10g of carbon fiber, 0.2g of dispersing agent, 0.2g of flatting agent and 100g of dimethylformamide. Grinding and uniformly dispersing. After being sprayed and cured for 2 hours at 180 ℃, the performance is tested.
Example 4
A carbon-carbon composite nano-based wear-resistant coating material comprises the following raw materials in parts by weight: 50g of polyimide solution, 8g of KH560, 10g of DMP-30, 10g of graphite, 12g of gas phase, 3g of molybdenum disulfide, 1g of lead oxide, 1g of zinc sulfide, 1g of antimony trioxide, 1g of boron nitride, 5g of nano titanium dioxide, 5g of carbon fiber, 0.2g of dispersing agent, 0.2g of flatting agent, 100g of N-methylpyrrolidone and 50g of dimethylbenzene. Grinding and uniformly dispersing. After being sprayed and cured at 180 ℃ for 2 hours, the coating is subjected to performance test.
The method comprises the following steps of carrying out a friction and wear performance test under dry friction and a friction performance test under oil lubrication with a dry film lubrication product which is representative and extensive for a certain international company, and carrying out a bench machine experiment performance test after the dry film lubrication product is applied to an engine piston, wherein the bench test is a piston cold start experiment carried out in a certain gasoline engine: the engine is started in an environment with the temperature of-10 ℃, the engine is heated to the full-load working condition within four minutes, the cycle is carried out for 50 times, after the experiment is completed, the engine is disassembled, and the abrasion thickness of the skirt part of the piston is measured. The results are compared as follows:
Figure 256817DEST_PATH_IMAGE001
from the detection result, the abrasion-resistant coating has excellent performance. In addition, the energy consumption experiment of the engine piston is carried out, and the fuel economy is also obviously improved.

Claims (10)

1. The composite nano-based wear-resistant coating material is characterized by comprising the following components in parts by weight:
10-60 parts of epoxy resin or polyimide resin solution
5-50 parts of organic amine substance
0.5-18 parts of accelerator
0.5-20 parts of coupling agent
5-20 parts of thixotropic agent
5-20 parts of lubricant
3-10 parts of wear-resistant additive
Carbon fiber 1-10
0.025-0.4 part of dispersant
0.025-0.4 parts of leveling agent
0-15 parts of solvent.
2. The composite nano-based wear-resistant coating material as claimed in claim 1, wherein the organic amine substance is selected from one or more of phenolic amine, condensed amine, aromatic amine, aliphatic amine, alicyclic amine and polyamide.
3. The composite nano-based wear-resistant coating material according to claim 1, wherein the coupling agent is selected from KH550, KH560 or other coupling agents.
4. The composite nano-based wear-resistant coating material according to claim 1, wherein the accelerator is selected from DMP-30 or other accelerators.
5. The composite nano-based wear-resistant coating material according to claim 1, wherein the thixotropic agent is selected from fumed silica and precipitated silica.
6. The composite nano-based wear-resistant coating material according to claim 1, wherein the wear-resistant additive is nano-antimony trioxide, copper oxide, boron nitride, silicon carbide, titanium dioxide or a mixture thereof, preferably nano-silicon carbide and titanium dioxide.
7. The composite nano-based wear-resistant coating material according to claim 1, wherein the carbon fibers are high-strength carbon fibers and have a length in the range of 2 to 300 μm.
8. The composite nano-based wear-resistant coating material according to claim 1, wherein the dispersant is a modified silicone dispersant.
9. The composite nano-based wear-resistant coating material according to claim 1, wherein the leveling agent is an organic silicon leveling agent.
10. The composite nano-based wear-resistant coating material according to claim 1, wherein the solvent is N-methylpyrrolidone, xylene, dimethylformamide or a mixture thereof.
CN202110922169.2A 2021-08-12 2021-08-12 Composite nano-based wear-resistant coating material Pending CN113527980A (en)

Priority Applications (1)

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CN202110922169.2A CN113527980A (en) 2021-08-12 2021-08-12 Composite nano-based wear-resistant coating material

Publications (1)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102816518A (en) * 2012-09-06 2012-12-12 山东滨州渤海活塞股份有限公司 Carbon-carbon composite nano-base wear-resistant coating material
CN105400372A (en) * 2015-12-16 2016-03-16 襄阳市百盾防护涂层材料有限公司 Wear-resistant coating material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102816518A (en) * 2012-09-06 2012-12-12 山东滨州渤海活塞股份有限公司 Carbon-carbon composite nano-base wear-resistant coating material
CN105400372A (en) * 2015-12-16 2016-03-16 襄阳市百盾防护涂层材料有限公司 Wear-resistant coating material

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