CN116023157B - Environment-friendly fireproof high-temperature-resistant graphite material coating and preparation method and application thereof - Google Patents
Environment-friendly fireproof high-temperature-resistant graphite material coating and preparation method and application thereof Download PDFInfo
- Publication number
- CN116023157B CN116023157B CN202310109321.4A CN202310109321A CN116023157B CN 116023157 B CN116023157 B CN 116023157B CN 202310109321 A CN202310109321 A CN 202310109321A CN 116023157 B CN116023157 B CN 116023157B
- Authority
- CN
- China
- Prior art keywords
- graphite material
- temperature
- environment
- friendly fireproof
- material coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Carbon And Carbon Compounds (AREA)
Abstract
The application discloses an environment-friendly fireproof high-temperature-resistant graphite material coating, and a preparation method and application thereof, wherein the preparation method comprises the following steps: s1, uniformly mixing molybdenum trioxide powder, silicon dioxide powder, a reducing agent and a dispersing agent, and adding the mixture into an aluminum dihydrogen phosphate solution to obtain mixed slurry; s2, coating the mixed slurry on the surface of a graphite material to obtain a wet film, and baking at 60-70 ℃; s3, after baking, carrying out gradient heating sintering on the graphite material coated with the wet film under vacuum or inert atmosphere, and then cooling and preserving heat to obtain the environment-friendly fireproof high-temperature-resistant graphite material coating, so that the peeling degree of the graphite material is reduced while the graphite material is prevented from being oxidized at high temperature.
Description
Technical Field
The application relates to the technical field of coatings, in particular to an environment-friendly fireproof high-temperature-resistant graphite material coating, and a preparation method and application thereof.
Background
The graphite material has good chemical corrosion resistance, high electric conductivity and heat conductivity, good mechanical property, low density, small thermal expansion coefficient and high thermal stability. Therefore, the graphite material is a commonly used high-temperature material and is widely applied to various fields such as aerospace, metal smelting, refractory materials, nuclear power industry, petroleum machinery and the like. However, graphite is susceptible to oxidation in high temperature environments. Although graphite materials can be used in inert or vacuum atmospheres above 2000 ℃, rapid oxidation begins at temperatures above 500 ℃ in an air or oxygen-containing atmosphere. Graphite electrodes are typically high in surface temperature and in an air environment, causing severe oxidation.
To protect the graphite electrode from oxidation, the prior art generally uses a coating technique, which is a protective technique that uses a surface coating system to isolate oxygen from the substrate, thereby avoiding oxidation reactions that occur when the two are in contact. Therefore, for the oxidation protection of the graphite electrode at a higher temperature, the coating technology can meet the requirement of effective oxidation resistance, for example, chinese patent CN1354206A uses water glass as a binder to be combined with a refractory material to prepare the oxidation protection coating for the graphite electrode, and the oxidation protection coating can play a certain role in protecting the graphite electrode.
However, the above technical scheme is easy to peel off or peel off the graphite material in the process of rising to high temperature, and the used binder is too much, so that the paint is highly volatilized and decomposed in the use process, the coating pores are too much, an effective continuous coating cannot be formed, and the protection effect is weakened.
Disclosure of Invention
In view of the above, the application provides an environment-friendly fireproof high-temperature-resistant graphite material coating, a preparation method and application thereof, which can prevent graphite materials from being oxidized at high temperature and reduce the peeling degree of the graphite materials.
In order to achieve the technical purpose, the application adopts the following technical scheme:
in a first aspect, the application provides a preparation method of an environment-friendly fireproof high-temperature-resistant graphite material coating, which comprises the following steps:
s1, uniformly mixing 5-10 parts of molybdenum trioxide powder, 5-10 parts of silicon dioxide powder, 1-5 parts of reducing agent and 0.5-2 parts of dispersing agent, and adding the mixture into an aluminum dihydrogen phosphate solution to obtain mixed slurry;
s2, coating the mixed slurry on the surface of a graphite material to obtain a wet film, and baking at 60-70 ℃;
s3, after baking, carrying out gradient heating sintering on the graphite material coated with the wet film in vacuum or inert atmosphere, and then cooling and preserving heat to obtain the environment-friendly fireproof high-temperature-resistant graphite material coating;
wherein, the gradient heating process comprises: in the first stage, heating to 250-400 ℃ at 5-10 ℃/min, and preserving heat for 1-2h; in the second stage, heating to 1300-1600 ℃ at a speed of 3-5 ℃/min, and preserving heat for 3-5h; in the third stage, the temperature is raised to 1700-1800 ℃ at 1-2 ℃/min, and the temperature is kept for 0.5-1h.
Preferably, the final temperature of the cooling is 1000-1200 ℃, and the heat preservation time is 1-2h.
Preferably, the reducing agent is carbon black powder.
Preferably, the carbon black powder is a conductive carbon black powder.
Preferably, the dispersing agent comprises one or more of sodium dodecyl sulfate and sodium tripolyphosphate.
Preferably, in the step S1, 5-10 parts of hollow glass beads with the particle size less than or equal to 5 mu m are added.
Preferably, the concentration of the aluminum dihydrogen phosphate solution is 1-3%.
Preferably, the wet film has a thickness of 200-1000 μm.
In a second aspect, the application provides an environment-friendly fireproof high-temperature-resistant graphite material coating material, which comprises the following components in parts by weight.
Preferably, the glass fiber reinforced plastic composite material also comprises 5-10 parts of hollow glass beads with the particle size less than or equal to 5 mu m.
In a third aspect, the application provides an application of an environment-friendly fireproof high-temperature-resistant graphite material coating in battery protection.
The beneficial effects of the application are as follows: the aluminum dihydrogen phosphate of the scheme forms a flowing oxide P at high temperature 4 O 10 Can effectively fill the pore structure of graphite, and after cooling, the liquid oxide P 4 O 10 Forming a high temperature resistant complex layer, P 4 O 10 The high-temperature resistant material is a net-shaped high-temperature resistant material with strong cohesiveness, is adhered to the surface of graphite active points, effectively prevents oxidizing gas from directly contacting with a graphite electrode from physical aspect, and is carbonized with carbon atoms at the edge at high temperature in chemical aspectThe aluminum carbide is generated by reaction, and the material has the characteristics of high melting point, low volatility and the like, can generate steric hindrance, prevent oxygen from being adsorbed on the surface of graphite, and can further improve the high temperature resistance and the oxidation resistance of the complex layer; in the process of preparing the coating, the molybdenum silicide with the thermal expansion coefficient similar to that of the graphite material is formed, the bonding strength of the coating and the graphite material is improved, the thermal expansion coefficient similar to that of a graphite electrode can be kept in each temperature range of heating of the coating, stripping or peeling of the coating can be avoided, and finally, the molybdenum silicide-aluminum carbide-P is uniformly formed in the coating 4 O 10 Compared with the method that molybdenum silicide is directly added into the coating raw material, the high-temperature resistant coating formed by the multiphase compound has better siliconizing dispersibility and filling property for the pores of the graphite material, and can improve the high-temperature resistance.
Detailed Description
The present application will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
The application provides a preparation method of an environment-friendly fireproof high-temperature-resistant graphite material coating, which comprises the following steps:
s1, uniformly mixing 5-10 parts of molybdenum trioxide powder, 5-10 parts of silicon dioxide powder, 1-5 parts of reducing agent and 0.5-2 parts of dispersing agent, and adding the mixture into an aluminum dihydrogen phosphate solution to obtain mixed slurry;
s2, coating the mixed slurry on the surface of a graphite material to obtain a wet film, and baking at 60-70 ℃ for removing solvents such as water and/or ethanol existing in the aluminum dihydrogen phosphate solution to avoid oxidation reaction of the water and the graphite at high temperature;
s3, after baking, carrying out gradient heating sintering on the graphite material coated with the wet film in vacuum or inert atmosphere, and then cooling and preserving heat to obtain the environment-friendly fireproof high-temperature-resistant graphite material coating;
wherein, the gradient heating process comprises: the first stage, heating to 250-400 ℃ at 5-10 ℃/min, preserving heat for 1-2h, and removing bound water from aluminum dihydrogen phosphate at the first stage for pyrolysis; a second stage, heating to 1300-1600 ℃ at a speed of 3-5 ℃/min, and preserving heat for 3-5h, wherein in the second stage, molybdenum trioxide powder and molybdenum trioxide powder start to undergo a carbon reduction reaction, and aluminum dihydrogen phosphate is further decomposed; in the third stage, the temperature is raised to 1700-1800 ℃ at 1-2 ℃/min, and the temperature is kept for 0.5-1h, and the reaction is more sufficient due to the continuous reaction of the carbon reduction reaction; the final temperature of the cooling is 1000-1200 ℃, the heat preservation time is 1-2h, and the alloying reaction is carried out by cooling, so that the full chemical combination reaction of silicon and molybdenum is ensured, and the volatilization of silicon element is avoided.
The aluminum dihydrogen phosphate of the scheme has the functions of simultaneously serving as a solvent carrier, an adhesive and an antioxidant, and the aluminum dihydrogen phosphate forms a flowing oxide P at high temperature 4 O 10 Can effectively fill the pore structure of graphite, and after cooling, the liquid oxide P 4 O 10 Forming a high temperature resistant complex layer, P 4 O 10 The aluminum element in the complex layer is carbonized with carbon atoms at the edge to generate aluminum carbide at high temperature in chemical aspect, and the substance has the characteristics of high melting point, low volatility and the like, can generate steric hindrance, can prevent oxygen from being adsorbed on the surface of graphite, and can further improve the high temperature resistance and the oxidation resistance of the complex layer; in the process of preparing the coating, the molybdenum silicide with the thermal expansion coefficient similar to that of the graphite material is formed, the bonding strength of the coating and the graphite material is improved, the thermal expansion coefficient similar to that of a graphite electrode can be kept in each temperature range of heating of the coating, stripping or peeling of the coating can be avoided, and finally, the molybdenum silicide-aluminum carbide-P is uniformly formed in the coating 4 O 10 Compared with the method that molybdenum silicide is directly added into the coating raw material, the high-temperature resistant coating formed by the multiphase compound has better siliconizing dispersibility and filling property for the pores of the graphite material, and can improve the high-temperature resistance.
In some embodiments, the reducing agent is a carbon black powder, which reduces the risk of introducing impurities, and which also acts as a reducing agent in the reaction of molybdenum trioxide and silica to promote the formation of molybdenum silicide, preferably the carbon black powder is a conductive carbon black powder to enhance the final electrical conductivity of the graphite material so that the electrical conductivity of the graphite material is unaffected even when coated with the coating.
The purpose of the dispersing agent is to uniformly disperse molybdenum trioxide, silicon dioxide and reducing agent in aluminum dihydrogen phosphate, and the dispersing agent comprises one or more of sodium dodecyl sulfate and sodium tripolyphosphate.
In some embodiments, step S1 further includes adding 5-10 parts of hollow glass beads with a particle size less than or equal to 5 μm, for example, 2-5 μm, where the hollow glass beads on one hand use the characteristic of good fluidity to make the high temperature resistant powder coating have a larger flow property and be more uniformly dispersed in graphite materials, and on the other hand, the surface area of the hollow glass beads is larger than that of silica, and the main components of the hollow glass beads are silica and alumina, so that the hollow glass beads can be used as a raw material supplement of silica to perform a reduction reaction with molybdenum trioxide at a high temperature, the contact area of the raw material is larger, the reaction is more sufficient, and the formation of molybdenum silicide is facilitated.
The concentration of the aluminum dihydrogen phosphate solution is 1-3%, if the concentration is too high, the viscosity of the aluminum dihydrogen phosphate is too high, which is unfavorable for the dispersion of powder substances, and if the concentration is too low, the content of the aluminum dihydrogen phosphate is too low, which cannot form a high temperature resistant complex layer.
The thickness of the wet film is required to be in a certain range, the thickness of the wet film is 200-1000 mu m, the difficulty of subsequent reaction is increased if the wet film is too thick, and the formed protective layer is thinner if the wet film is too thin, so that the protective effect is not realized.
In a second aspect, the application provides an environment-friendly fireproof high-temperature-resistant graphite material coating material, which comprises, by mass, 5-10 parts of molybdenum trioxide powder, 5-10 parts of silicon dioxide powder, 1-5 parts of a reducing agent, 0.5-2 parts of a dispersing agent, and the balance of aluminum dihydrogen phosphate solution, preferably, hollow glass beads with a particle size of less than or equal to 5 mu m.
In a third aspect, the application provides an application of an environment-friendly fireproof high-temperature-resistant graphite material coating in battery protection, in particular to an application of the environment-friendly fireproof high-temperature-resistant graphite material coating serving as a protective layer of a graphite electrode.
The present application is further illustrated by the following specific examples.
Example 1
The preparation method of the environment-friendly fireproof high-temperature-resistant graphite material coating comprises the following steps:
s1, weighing 5-10 parts of molybdenum trioxide powder, 5-10 parts of silicon dioxide powder, 1-5 parts of carbon black powder and 0.5-2 parts of dispersing agent, mixing uniformly in a mixer, adding into an aluminum dihydrogen phosphate solution, and stirring at high speed for 0.5h under the ice bath condition to obtain mixed slurry;
s2, coating the mixed slurry on the surface of a graphite material to obtain a wet film, and baking at 60-70 ℃;
s3, transferring the graphite material coated with the wet film into an atmosphere sintering furnace after baking, heating to 250-400 ℃ at 5-10 ℃/min, preserving heat for 1-2h, and carrying out pyrolysis reaction; then, heating to 1300-1600 ℃ at a speed of 3-5 ℃/min, preserving heat for 3-5h, carrying out carbon reduction reaction, and simultaneously continuously decomposing aluminum dihydrogen phosphate; after the process is finished, the temperature is increased to 1700-1800 ℃ at 1-2 ℃/min, the temperature is kept for 0.5-1h, and the gradient heating sintering process is finished; finally, cooling to 1000-1200 ℃, keeping the temperature for 1-2h, and carrying out alloying reaction by cooling to obtain the environment-friendly fireproof high-temperature-resistant graphite material coating.
Example 2
The preparation method of the environment-friendly fireproof high-temperature-resistant graphite material coating comprises the following steps:
s1, weighing 5-10 parts of molybdenum trioxide powder, 5-10 parts of silicon dioxide powder, 1-5 parts of conductive carbon black powder, 0.5-2 parts of dispersing agent and 5-10 parts of 2-5 mu m hollow glass beads, mixing uniformly in a mixer, adding into an aluminum dihydrogen phosphate solution, and stirring at high speed for 0.5h under the ice bath condition to obtain mixed slurry;
s2, coating the mixed slurry on the surface of a graphite material to obtain a wet film, and baking at 60-70 ℃;
s3, transferring the graphite material coated with the wet film into an atmosphere sintering furnace after baking, heating to 250-400 ℃ at 5-10 ℃/min, preserving heat for 1-2h, and carrying out pyrolysis reaction; then, heating to 1300-1600 ℃ at a speed of 3-5 ℃/min, preserving heat for 3-5h, carrying out carbon reduction reaction, and simultaneously continuously decomposing aluminum dihydrogen phosphate; after the process is finished, the temperature is increased to 1700-1800 ℃ at 1-2 ℃/min, the temperature is kept for 0.5-1h, and the gradient heating sintering process is finished; finally, cooling to 1000-1200 ℃, keeping the temperature for 1-2h, and carrying out alloying reaction by cooling to obtain the environment-friendly fireproof high-temperature-resistant graphite material coating.
Example 3
The preparation method of the environment-friendly fireproof high-temperature-resistant graphite material coating comprises the following steps:
s1, weighing 5-10 parts of molybdenum trioxide powder, 5-10 parts of silicon dioxide powder, 1-5 parts of carbon black powder, 0.5-2 parts of dispersing agent and 5-10 parts of 2-5 mu m hollow glass beads, mixing uniformly in a mixer, adding into an aluminum dihydrogen phosphate solution, and stirring at high speed for 0.5h under the ice bath condition to obtain mixed slurry;
s2, coating the mixed slurry on the surface of a graphite material to obtain a wet film, and baking at 60-70 ℃;
s3, transferring the graphite material coated with the wet film into an atmosphere sintering furnace after baking, heating to 250-400 ℃ at 5-10 ℃/min, preserving heat for 1-2h, and carrying out pyrolysis reaction; then, heating to 1300-1600 ℃ at a speed of 3-5 ℃/min, preserving heat for 3-5h, carrying out carbon reduction reaction, and simultaneously continuously decomposing aluminum dihydrogen phosphate; after the process is finished, the temperature is increased to 1700-1800 ℃ at 1-2 ℃/min, the temperature is kept for 0.5-1h, and the gradient heating sintering process is finished; finally, cooling to 1000-1200 ℃, keeping the temperature for 1-2h, and carrying out alloying reaction by cooling to obtain the environment-friendly fireproof high-temperature-resistant graphite material coating.
Comparative example 1
A preparation method of a high-temperature-resistant graphite material coating comprises the following steps:
s1, adding 5-10 parts of molybdenum silicide powder into an aluminum dihydrogen phosphate solution, and stirring at high speed for 0.5h under an ice bath condition to obtain mixed slurry;
s2, coating the mixed slurry on the surface of a graphite material to obtain a wet film, and baking at 60-70 ℃;
s3, transferring the graphite material coated with the wet film into an atmosphere sintering furnace after baking, heating to 250-400 ℃ at 5-10 ℃/min, and preserving heat for 1-2h; then, heating to 1300-1600 ℃ at 3-5 ℃/min, and preserving heat for 3-5h; after the process is finished, heating to 1700-1800 ℃ at 1-2 ℃/min, and preserving heat for 0.5-1h; finally, cooling to 1000-1200 ℃, and keeping the temperature for 1-2h to obtain the high temperature resistant graphite material coating.
Comparative example 2
A preparation method of a high-temperature-resistant graphite material coating comprises the following steps:
s1, adding 5-10 parts of silicon carbide powder into an aluminum dihydrogen phosphate solution, and stirring at high speed for 0.5h under the ice bath condition to obtain mixed slurry;
s2, coating the mixed slurry on the surface of a graphite material to obtain a wet film, and baking at 60-70 ℃;
s3, transferring the graphite material coated with the wet film into an atmosphere sintering furnace after baking, heating to 250-400 ℃ at 5-10 ℃/min, and preserving heat for 1-2h; then, heating to 1300-1600 ℃ at 3-5 ℃/min, and preserving heat for 3-5h; after the process is finished, heating to 1700-1800 ℃ at 1-2 ℃/min, and preserving heat for 0.5-1h; finally, cooling to 1000-1200 ℃, and keeping the temperature for 1-2h to obtain the high temperature resistant graphite material coating.
Evaluation test
The graphite materials of examples and comparative examples were subjected to heat preservation at 1400℃for 10 hours in an air atmosphere, and the results of measuring the ablation rate of the graphite materials and observing the peeling of the graphite electrode materials are shown in Table 1.
Table 1 results of high temperature resistance test of graphite material coatings
| Ablation Rate (%) | Peeling off condition | |
| Example 1 | 2 | The coating is complete, and the graphite material has no peeling phenomenon |
| Example 2 | 1 | The coating is complete, and the graphite material has no peeling phenomenon |
| Example 3 | 0.5 | The coating is complete, and the graphite material has no peeling phenomenon |
| Comparative example 1 | 12 | The coating has cracks and the graphite material is peeled off in a small amount |
| Comparative example 2 | 37 | The coating part is peeled off, and the graphite material is more peeled off |
The result shows that the environment-friendly fireproof high-temperature-resistant graphite material coating prepared by the scheme of the application can effectively protect the graphite material, prevent the graphite material from being oxidized at high temperature and reduce the peeling degree of the graphite material.
The present application is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present application are intended to be included in the scope of the present application.
Claims (8)
1. The preparation method of the environment-friendly fireproof high-temperature-resistant graphite material coating is characterized by comprising the following steps of:
s1, uniformly mixing 5-10 parts of molybdenum trioxide powder, 5-10 parts of silicon dioxide powder, 1-5 parts of reducing agent and 0.5-2 parts of dispersing agent, and adding the mixture into an aluminum dihydrogen phosphate solution to obtain mixed slurry;
s2, coating the mixed slurry on the surface of a graphite material to obtain a wet film, and baking at 60-70 ℃;
s3, after baking, carrying out gradient heating sintering on the graphite material coated with the wet film in vacuum or inert atmosphere, and then cooling and preserving heat to obtain the environment-friendly fireproof high-temperature-resistant graphite material coating;
wherein, the gradient heating process comprises the following steps: in the first stage, heating to 250-400 ℃ at 5-10 ℃/min, and preserving heat for 1-2h; in the second stage, heating to 1300-1600 ℃ at a speed of 3-5 ℃/min, and preserving heat for 3-5h; in the third stage, heating to 1700-1800 ℃ at 1-2 ℃/min, and preserving heat for 0.5-1h; the reducing agent is carbon black powder, and the concentration of the aluminum dihydrogen phosphate solution is 1-3%.
2. The method for preparing the environment-friendly fireproof high-temperature-resistant graphite material coating according to claim 1, wherein the final temperature of the cooling is 1000-1200 ℃ and the heat preservation time is 1-2h.
3. The method for preparing the environment-friendly fireproof high temperature resistant graphite material coating according to claim 1, wherein the carbon black powder is conductive carbon black powder.
4. The method for preparing the environment-friendly fireproof high-temperature-resistant graphite material coating according to claim 1, wherein the dispersing agent comprises one or more of sodium dodecyl sulfate and sodium tripolyphosphate.
5. The method for preparing the environment-friendly fireproof high-temperature-resistant graphite material coating according to claim 1, wherein in the step S1, 5-10 parts of hollow glass beads with the particle size of less than or equal to 5 μm are added.
6. The method for preparing the environment-friendly fireproof high temperature resistant graphite material coating according to claim 1, wherein the thickness of the wet film is 200-1000 μm.
7. An environmental-friendly fireproof high-temperature-resistant graphite material coating material obtained by the preparation method according to any one of claims 1 to 6.
8. Use of the environmental-friendly fireproof high-temperature-resistant graphite material coating material according to claim 7 in battery protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310109321.4A CN116023157B (en) | 2023-02-14 | 2023-02-14 | Environment-friendly fireproof high-temperature-resistant graphite material coating and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310109321.4A CN116023157B (en) | 2023-02-14 | 2023-02-14 | Environment-friendly fireproof high-temperature-resistant graphite material coating and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116023157A CN116023157A (en) | 2023-04-28 |
| CN116023157B true CN116023157B (en) | 2023-09-19 |
Family
ID=86079513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310109321.4A Active CN116023157B (en) | 2023-02-14 | 2023-02-14 | Environment-friendly fireproof high-temperature-resistant graphite material coating and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116023157B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107001160A (en) * | 2014-08-25 | 2017-08-01 | 通用电气公司 | Product for hot operation |
| CN109704813A (en) * | 2019-02-26 | 2019-05-03 | 青岛润凯碳素有限公司 | A kind for the treatment of process of high temperature oxidation resisting graphite product |
| CN112279685A (en) * | 2020-10-29 | 2021-01-29 | 陕西天璇涂层科技有限公司 | MTaO with environmental thermal barrier coating4Graphite-based composite material and preparation method thereof |
| CN112409020A (en) * | 2020-10-30 | 2021-02-26 | 江苏材睿科技有限公司 | High-temperature-resistant and antioxidant coating on surface of graphite material and preparation method thereof |
| CN115636692A (en) * | 2022-10-31 | 2023-01-24 | 广东西北航空科技股份有限公司 | High-temperature-resistant and anti-oxidation ceramic coating and preparation method and application thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005042474A1 (en) * | 2005-09-07 | 2007-03-08 | Ks Aluminium-Technologie Ag | Coating of a thermally and erosively loaded functional component, and a release agent and a method for producing the coating |
-
2023
- 2023-02-14 CN CN202310109321.4A patent/CN116023157B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107001160A (en) * | 2014-08-25 | 2017-08-01 | 通用电气公司 | Product for hot operation |
| CN109704813A (en) * | 2019-02-26 | 2019-05-03 | 青岛润凯碳素有限公司 | A kind for the treatment of process of high temperature oxidation resisting graphite product |
| CN112279685A (en) * | 2020-10-29 | 2021-01-29 | 陕西天璇涂层科技有限公司 | MTaO with environmental thermal barrier coating4Graphite-based composite material and preparation method thereof |
| CN112409020A (en) * | 2020-10-30 | 2021-02-26 | 江苏材睿科技有限公司 | High-temperature-resistant and antioxidant coating on surface of graphite material and preparation method thereof |
| CN115636692A (en) * | 2022-10-31 | 2023-01-24 | 广东西北航空科技股份有限公司 | High-temperature-resistant and anti-oxidation ceramic coating and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116023157A (en) | 2023-04-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4711666A (en) | Oxidation prevention coating for graphite | |
| CN108117811B (en) | Graphene-silicon electromagnetic shielding filler and electromagnetic shielding coating | |
| CN113555146B (en) | High-acid-resistance medium slurry | |
| US4931413A (en) | Glass ceramic precursor compositions containing titanium diboride | |
| US20060147699A1 (en) | Protective ceramic coating | |
| US4769074A (en) | Binder/suspension composition and method of preparation thereof | |
| CN114591102A (en) | C/C composite material SiB6-Glass oxidation resistant coating and preparation method thereof | |
| US4234338A (en) | Thermal shock resistance ceramic insulator | |
| CN112279685A (en) | MTaO with environmental thermal barrier coating4Graphite-based composite material and preparation method thereof | |
| CN106631161B (en) | A method of composite coating resistant to high temperature oxidation is prepared on carbon-based material surface | |
| CN116023157B (en) | Environment-friendly fireproof high-temperature-resistant graphite material coating and preparation method and application thereof | |
| CN108440023B (en) | Method for metallizing aluminum oxide ceramic | |
| CN108299878A (en) | A kind of anti-forging graphene oxide protective coating of aqueous medium temperature and preparation method thereof | |
| CN108817387B (en) | Preparation method of tungsten-based composite material with high hardness and high-temperature oxidation resistance | |
| CN108135119B (en) | Electromagnetic shielding material based on porous graphene-alloy silicon, preparation method thereof and coating | |
| CN106518166A (en) | Carbon/carbon composite material anti-oxidation coating layer and heat treatment method | |
| CN114574043B (en) | Nano/polyethylene wax composite modified graphene coating and preparation method thereof | |
| CN115449782A (en) | Novel environment-friendly insulating coating liquid for oriented silicon steel and preparation method thereof | |
| CN107663101B (en) | Antioxidant SiC foam and preparation method thereof | |
| CN102424593B (en) | Oxidation resistance coating material for continuous casting function fire resistance material | |
| CN114940919A (en) | High-temperature lubricant for quick-change nozzle of tundish and preparation method thereof | |
| CN108410296A (en) | A kind of mechanical equipment anticorrosive paint and preparation method thereof | |
| CN113429880A (en) | Water-based modified organic silicon temperature-resistant coating and preparation method thereof | |
| CN114045053A (en) | Decarburization-preventing separant | |
| CN114591087A (en) | Complex-phase silicon carbide conductive ceramic taking MAX-phase titanium aluminum carbide as auxiliary agent and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |