CN111171692A - High-temperature corrosion resistant silicon carbide coating and preparation method thereof - Google Patents
High-temperature corrosion resistant silicon carbide coating and preparation method thereof Download PDFInfo
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- CN111171692A CN111171692A CN202010057840.7A CN202010057840A CN111171692A CN 111171692 A CN111171692 A CN 111171692A CN 202010057840 A CN202010057840 A CN 202010057840A CN 111171692 A CN111171692 A CN 111171692A
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
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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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
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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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2244—Oxides; Hydroxides of metals of zirconium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses a high-temperature corrosion resistant silicon carbide coating and a preparation method thereof, belonging to the field of coatings. The coating comprises the following raw materials in percentage by mass: 35-45% of recrystallized silicon carbide powder, 10-20% of carbon fiber, 0.5-1% of lanthanum oxide, 20-30% of waterborne polyurethane, 10-20% of polyacrylate, 1-5% of sodium carboxymethylcellulose, 1-5% of methanol and 0.5-2% of zirconium oxide. The paint disclosed by the invention adopts the recrystallized silicon carbide powder, so that the high-temperature resistance and the corrosion resistance are stronger, the carbon fiber and the lanthanum oxide are added, the toughness and the corrosion resistance effect of the paint are improved, the shedding and the splitting of the paint are effectively prevented, and the service life is prolonged.
Description
Technical Field
The invention relates to the field of coatings, in particular to a high-temperature corrosion resistant silicon carbide coating and a preparation method thereof.
Background
The silicon carbide has stable chemical performance, high heat conductivity coefficient, small thermal expansion coefficient and good wear resistance, and has other purposes besides being used as an abrasive, for example, the silicon carbide powder is coated on the inner wall of a water turbine impeller or a cylinder body by a special process, so that the wear resistance can be improved, and the service life is prolonged by 1-2 times; the high-grade refractory material has the advantages of thermal shock resistance, small volume, light weight, high strength and good energy-saving effect.
Because of excellent high-temperature resistance, the silicon carbide is often used for preparing the saggar serving as the lithium battery anode material, so that the high-temperature resistance of the saggar is improved. However, the sagger of the lithium battery positive electrode material still has the problem of poor erosion resistance, the lithium battery positive electrode material for roasting is mostly in a powder shape and has strong permeability, lithium ions in the material belong to strong alkaline substances, the strong alkaline substances have strong erosion to the sagger material, and in the roasting process of the lithium battery positive electrode material, because the lithium ions can separate out ions such as Si, Al and Mg in the sagger in the contact process of the lithium ions and the sagger, the microstructure of the sagger is damaged, the sagger is eroded, and the service life of the sagger is obviously shortened.
At present, in order to improve the corrosion resistance of the sagger, a common mode is to coat a layer of anticorrosive material on the surface of the sagger; disclosed in publication No. CN110452605A, is a silicon carbide coating material comprising 30-40% of silicon carbide powder, 20-30% of aqueous polyurethane, 10-20% of polyacrylate, 5-15% of organic metal salt, 1-10% of attapulgite, 1-5% of sodium carboxymethylcellulose, 1-5% of an aqueous wetting agent, and 1-5% of methanol. In the high temperature reaction of the sagger, the crystal water in the organic matter is easy to evaporate, and the organic matter is in a molten state; the coating is easy to fall off, and the anti-corrosion effect is influenced; meanwhile, the dropped coating affects the conductivity of the electrode. The disclosure No. CN110451939A discloses a sagger and a manufacturing method thereof, wherein the sagger mainly comprises 8-10 parts of kaolin, 7-9 parts of talc, 4-6 parts of alumina, 22-28 parts of corundum with the particle size of 10 mu m-40 mu m, 45-58 parts of corundum with the particle size of 0.1-0.8mm, 18-30 parts of silicon carbide with the particle size of 300-500 meshes, 8-15 parts of mullite and 8-16 parts of cordierite with the particle size of 0.1-1mm, wherein the mass percent of silicon dioxide in the kaolin is 50%, and the mass percent of alumina is 38%; the talc contains 55% by mass of silica and 35% by mass of magnesium oxide. The preparation method comprises the steps of mixing water, and simultaneously adding a bonding agent, wherein the bonding agent is pulp waste liquid or polyvinyl alcohol or dextrin. Although the binding agent has the standing function at normal temperature, the binding agent is easy to be pasted at high temperature, inorganic matters are difficult to be bonded together, and the quality of the sagger is reduced.
In summary, the existing high-temperature-resistant and corrosion-resistant silicon carbide sagger is tender and consolidated as a coating to reduce falling, so that the corrosion prevention effect is influenced, and the quality of the sagger is further influenced.
Disclosure of Invention
In order to solve the problems, the invention provides the silicon carbide coating which has good adhesion, good high-temperature corrosion resistance effect and good shedding and cracking prevention, and also provides a preparation method of the high-temperature corrosion resistance silicon carbide coating.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the high-temperature corrosion resistant silicon carbide coating comprises the following raw materials in percentage by mass: 35-45% of recrystallized silicon carbide powder, 10-20% of carbon fiber, 0.5-1% of lanthanum oxide, 20-30% of waterborne polyurethane, 10-20% of polyacrylate, 1-5% of sodium carboxymethylcellulose, 1-5% of methanol and 0.5-2% of zirconium oxide.
Further, the high-temperature corrosion resistant silicon carbide coating comprises the following raw materials in percentage by mass: 40-45% of recrystallized silicon carbide powder, 12-18% of carbon fiber, 0.5-0.8% of lanthanum oxide, 15-20% of waterborne polyurethane, 15-20% of polyacrylate, 2-5% of sodium carboxymethylcellulose, 2-4% of methanol and 0.8-1.5% of zirconium oxide.
Further, the high-temperature corrosion resistant silicon carbide coating comprises the following raw materials in percentage by mass: 41-43% of recrystallized silicon carbide powder, 15-18% of carbon fiber, 0.5-0.6% of lanthanum oxide, 15-18% of waterborne polyurethane, 16-18% of polyacrylate, 2-3% of sodium carboxymethylcellulose, 2-4% of methanol and 1.2-1.5% of zirconium oxide.
Preferably, the high-temperature corrosion resistant silicon carbide coating comprises the following raw materials in percentage by mass: 42% of recrystallized silicon carbide powder, 17% of carbon fiber, 0.6% of lanthanum oxide, 16% of waterborne polyurethane, 18% of polyacrylate, 2% of sodium carboxymethylcellulose, 3% of methanol and 1.4% of zirconium oxide.
A preparation method of high-temperature corrosion resistant silicon carbide coating comprises the following steps:
(1) fully mixing and melting waterborne polyurethane, polyacrylate, sodium carboxymethylcellulose and methanol to form fluid;
(2) mixing the recrystallized silicon carbide powder, the carbon fiber, the lanthanum oxide and the zirconium oxide in a stirrer to obtain a solid mixture;
(3) and (3) adding the solid mixture obtained in the step (2) into the fluid obtained in the step (1), fully mixing and stirring, and performing ball milling and homogenizing treatment in sequence to obtain the silicon carbide coating.
Further, in the step (3), the ball milling particle size of the solid mixture is 10-50 nm.
Further, the homogenization treatment time in the step (3) is 20-30 min.
The high-temperature corrosion resistant silicon carbide coating and the preparation method thereof have the beneficial effects that:
(1) the paint disclosed by the invention adopts recrystallized silicon carbide powder, so that the high-temperature resistance and corrosion resistance are stronger, carbon fiber and lanthanum oxide are added, the toughness and corrosion resistance effect of the paint are improved, the shedding and splitting of the paint are effectively prevented, and the service life is prolonged;
(2) according to the invention, through the mixing of the recrystallized silicon carbide powder and the zirconia, the high temperature resistance of the coating is improved, the coating can bear the high temperature of more than 1400 ℃, and the service life of the sagger is greatly prolonged.
Detailed Description
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art. The present invention will be described in further detail with reference to the following examples.
Example 1
The high-temperature corrosion resistant silicon carbide coating comprises the following raw materials in percentage by mass: 45% of recrystallized silicon carbide powder, 10% of carbon fiber, 0.5% of lanthanum oxide, 30% of waterborne polyurethane, 10% of polyacrylate, 2% of sodium carboxymethylcellulose, 2% of methanol and 0.5% of zirconium oxide.
The preparation method of the high-temperature corrosion resistant silicon carbide coating in the embodiment comprises the following steps:
(1) fully mixing and melting waterborne polyurethane, polyacrylate, sodium carboxymethylcellulose and methanol to form fluid;
(2) mixing the recrystallized silicon carbide powder, the carbon fiber, the lanthanum oxide and the zirconium oxide in a stirrer to obtain a solid mixture;
(3) and (3) adding the solid mixture in the step (2) into the fluid in the step (1), fully mixing and stirring, and performing ball milling and homogenization treatment in sequence, wherein the ball milling ensures that the average particle size of the solid mixture is within the range of 40-45nm, and the homogenization treatment time is 20-30 min. Within the particle size range, the covering power, the smoothness and the durability of the coating can be greatly improved, the coating can be effectively prevented from falling off and splitting, and the service life of the sagger is prolonged.
Example 2
The high-temperature corrosion resistant silicon carbide coating comprises the following raw materials in percentage by mass: 35% of recrystallized silicon carbide powder, 20% of carbon fiber, 1% of lanthanum oxide, 20% of waterborne polyurethane, 20% of polyacrylate, 1% of sodium carboxymethylcellulose, 1% of methanol and 2% of zirconium oxide.
The preparation method of the high-temperature corrosion resistant silicon carbide coating in the embodiment comprises the following steps:
(1) fully mixing and melting waterborne polyurethane, polyacrylate, sodium carboxymethylcellulose and methanol to form fluid;
(2) mixing the recrystallized silicon carbide powder, the carbon fiber, the lanthanum oxide and the zirconium oxide in a stirrer to obtain a solid mixture;
(3) and (3) adding the solid mixture obtained in the step (2) into the fluid obtained in the step (1), fully mixing and stirring, and performing ball milling and homogenization treatment in sequence, wherein the ball milling enables the average particle size of the solid mixture to be within the range of 20-25nm, and the homogenization treatment time is 20-30 min. Within the particle size range, the covering power, the smoothness and the durability of the coating can be greatly improved, the coating can be effectively prevented from falling off and splitting, and the service life of the sagger is prolonged.
Example 3
The high-temperature corrosion resistant silicon carbide coating comprises the following raw materials in percentage by mass: 42% of recrystallized silicon carbide powder, 17% of carbon fiber, 0.6% of lanthanum oxide, 16% of waterborne polyurethane, 18% of polyacrylate, 2% of sodium carboxymethylcellulose, 3% of methanol and 1.4% of zirconium oxide.
The preparation method of the high-temperature corrosion resistant silicon carbide coating in the embodiment comprises the following steps:
(1) fully mixing and melting waterborne polyurethane, polyacrylate, sodium carboxymethylcellulose and methanol to form fluid;
(2) mixing the recrystallized silicon carbide powder, the carbon fiber, the lanthanum oxide and the zirconium oxide in a stirrer to obtain a solid mixture;
(3) and (3) adding the solid mixture in the step (2) into the fluid in the step (1), fully mixing and stirring, and performing ball milling and homogenization treatment in sequence, wherein the ball milling ensures that the average particle size of the solid mixture is within the range of 30-35nm, and the homogenization treatment time is 20-30 min. Within the particle size range, the covering power, the smoothness and the durability of the coating can be greatly improved, the coating can be effectively prevented from falling off and splitting, and the service life of the sagger is prolonged.
Example 4
The high-temperature corrosion resistant silicon carbide coating comprises the following raw materials in percentage by mass: 40% of recrystallized silicon carbide powder, 18% of carbon fiber, 0.5% of lanthanum oxide, 15% of waterborne polyurethane, 16% of polyacrylate, 5% of sodium carboxymethylcellulose, 4% of methanol and 1.5% of zirconium oxide.
The preparation method of the high-temperature corrosion resistant silicon carbide coating in the embodiment comprises the following steps:
(1) fully mixing and melting waterborne polyurethane, polyacrylate, sodium carboxymethylcellulose and methanol to form fluid;
(2) mixing the recrystallized silicon carbide powder, the carbon fiber, the lanthanum oxide and the zirconium oxide in a stirrer to obtain a solid mixture;
(3) and (3) adding the solid mixture in the step (2) into the fluid in the step (1), fully mixing and stirring, and performing ball milling and homogenization treatment in sequence, wherein the ball milling ensures that the average particle size of the solid mixture is within the range of 35-40nm, and the homogenization treatment time is 20-30 min. Within the particle size range, the covering power, the smoothness and the durability of the coating can be greatly improved, the coating can be effectively prevented from falling off and splitting, and the service life of the sagger is prolonged.
Example 5
The high-temperature corrosion resistant silicon carbide coating comprises the following raw materials in percentage by mass: 43% of recrystallized silicon carbide powder, 15% of carbon fiber, 0.8% of lanthanum oxide, 18% of waterborne polyurethane, 18% of polyacrylate, 2% of sodium carboxymethylcellulose, 2% of methanol and 1.2% of zirconium oxide.
The preparation method of the high-temperature corrosion resistant silicon carbide coating in the embodiment comprises the following steps:
(1) fully mixing and melting waterborne polyurethane, polyacrylate, sodium carboxymethylcellulose and methanol to form fluid;
(2) mixing the recrystallized silicon carbide powder, the carbon fiber, the lanthanum oxide and the zirconium oxide in a stirrer to obtain a solid mixture;
(3) and (3) adding the solid mixture obtained in the step (2) into the fluid obtained in the step (1), fully mixing and stirring, and performing ball milling and homogenization treatment in sequence, wherein the ball milling enables the average particle size of the solid mixture to be in the range of 25-30nm, and the homogenization treatment time is 20-30 min. Within the particle size range, the covering power, the smoothness and the durability of the coating can be greatly improved, the coating can be effectively prevented from falling off and splitting, and the service life of the sagger is prolonged.
Example 6
The high-temperature corrosion resistant silicon carbide coating comprises the following raw materials in percentage by mass: 43% of recrystallized silicon carbide powder, 15% of carbon fiber, 0.8% of lanthanum oxide, 16% of waterborne polyurethane, 18% of polyacrylate, 4% of sodium carboxymethylcellulose, 2% of methanol and 1.2% of zirconium oxide.
The preparation method of the high-temperature corrosion resistant silicon carbide coating in the embodiment comprises the following steps:
(1) fully mixing and melting waterborne polyurethane, polyacrylate, sodium carboxymethylcellulose and methanol to form fluid;
(2) mixing the recrystallized silicon carbide powder, the carbon fiber, the lanthanum oxide and the zirconium oxide in a stirrer to obtain a solid mixture;
(3) and (3) adding the solid mixture obtained in the step (2) into the fluid obtained in the step (1), fully mixing and stirring, and performing ball milling and homogenization treatment in sequence, wherein the ball milling enables the average particle size of the solid mixture to be in the range of 25-30nm, and the homogenization treatment time is 20-30 min. Within the particle size range, the covering power, the smoothness and the durability of the coating can be greatly improved, the coating can be effectively prevented from falling off and splitting, and the service life of the sagger is prolonged.
Taking the example 3 as a sample, coating the coating of the example 3 on the surface layer of the sagger according to the conventional preparation of the sagger, wherein the coating thickness is the industry standard thickness, and carrying out data detection, wherein the obtained data are shown in the following table 1:
TABLE 1
| Item | Example 1 |
| Falling strength (Room temperature) | 470-483MPa |
| Falling strength (1400 ℃ C.) | 400-416MPa |
| Degree of fire (. degree. C.) | 1800 |
| Number of thermal shock resistance | 300-310 times |
As can be seen from the above table 1, the coating obtained by the invention has greatly improved falling resistance and cracking resistance, obviously increased thermal shock resistance times, greatly improved high temperature resistance and corrosion resistance when applied to saggars, greatly enhanced toughness and adhesion, and prolonged service life of the saggars.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the embodiments are only used to help understanding the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the present description should not be construed as a limitation to the present invention.
Claims (6)
1. The high-temperature corrosion resistant silicon carbide coating is characterized in that: the composite material comprises the following raw materials in percentage by mass: 35-45% of recrystallized silicon carbide powder, 10-20% of carbon fiber, 0.5-1% of lanthanum oxide, 20-30% of waterborne polyurethane, 10-20% of polyacrylate, 1-5% of sodium carboxymethylcellulose, 1-5% of methanol and 0.5-2% of zirconium oxide.
2. The high temperature corrosion resistant silicon carbide coating of claim 1, wherein: the composite material comprises the following raw materials in percentage by mass: 40-45% of recrystallized silicon carbide powder, 12-18% of carbon fiber, 0.5-0.8% of lanthanum oxide, 15-20% of waterborne polyurethane, 15-20% of polyacrylate, 2-5% of sodium carboxymethylcellulose, 2-4% of methanol and 0.8-1.5% of zirconium oxide.
3. The high temperature corrosion resistant silicon carbide coating of claim 1, wherein: the composite material comprises the following raw materials in percentage by mass: 41-43% of recrystallized silicon carbide powder, 15-18% of carbon fiber, 0.5-0.6% of lanthanum oxide, 15-18% of waterborne polyurethane, 16-18% of polyacrylate, 2-3% of sodium carboxymethylcellulose, 2-4% of methanol and 1.2-1.5% of zirconium oxide.
4. A method for preparing the high temperature corrosion resistant silicon carbide coating according to any one of claims 1 to 3, wherein: the method comprises the following steps:
(1) fully mixing and melting waterborne polyurethane, polyacrylate, sodium carboxymethylcellulose and methanol to form fluid;
(2) mixing the recrystallized silicon carbide powder, the carbon fiber, the lanthanum oxide and the zirconium oxide in a stirrer to obtain a solid mixture;
(3) and (3) adding the solid mixture obtained in the step (2) into the fluid obtained in the step (1), fully mixing and stirring, and performing ball milling and homogenizing treatment in sequence to obtain the silicon carbide coating.
5. The method for preparing the high temperature corrosion resistant silicon carbide coating according to claim 4, wherein the method comprises the following steps: and (4) performing ball milling on the solid mixture in the step (3) until the particle size is 10-50 nm.
6. The method for preparing the high temperature corrosion resistant silicon carbide coating according to claim 4, wherein the method comprises the following steps: the homogenizing treatment time in the step (3) is 20-30 min.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114031407A (en) * | 2021-12-13 | 2022-02-11 | 湖南太子新材料科技有限公司 | Silicon carbide sagger for lithium battery anode material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107779082A (en) * | 2017-10-30 | 2018-03-09 | 四川行之智汇知识产权运营有限公司 | A kind of rare earth preservative |
| CN110452605A (en) * | 2019-05-21 | 2019-11-15 | 湖南太子新材料科技有限公司 | A kind of carborundum coating and its manufacturing method |
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2020
- 2020-01-19 CN CN202010057840.7A patent/CN111171692A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107779082A (en) * | 2017-10-30 | 2018-03-09 | 四川行之智汇知识产权运营有限公司 | A kind of rare earth preservative |
| CN110452605A (en) * | 2019-05-21 | 2019-11-15 | 湖南太子新材料科技有限公司 | A kind of carborundum coating and its manufacturing method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114031407A (en) * | 2021-12-13 | 2022-02-11 | 湖南太子新材料科技有限公司 | Silicon carbide sagger for lithium battery anode material and preparation method thereof |
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Application publication date: 20200519 |