CN113058826A - Carbon material surface high temperature resistant densification nano deposition graphene coating technology - Google Patents
Carbon material surface high temperature resistant densification nano deposition graphene coating technology Download PDFInfo
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- CN113058826A CN113058826A CN202110230287.7A CN202110230287A CN113058826A CN 113058826 A CN113058826 A CN 113058826A CN 202110230287 A CN202110230287 A CN 202110230287A CN 113058826 A CN113058826 A CN 113058826A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate treatment
- B05D1/38—Successively applying liquids or other fluent materials, e.g. without intermediate treatment with intermediate treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/18—Processes for applying liquids or other fluent materials performed by dipping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
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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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2203/00—Other substrates
- B05D2203/30—Other inorganic substrates, e.g. ceramics, silicon
Abstract
The invention discloses a carbon material surface high temperature resistant densified nano deposited graphene coating technology, which comprises the following components in parts by weight: the component one: graphene: 0.2 to 9.3; and (2) component two: carbon nanotube: 0.1 to 8.2; the third component: magnetic-electric ion complexing agent: 0.2 to 7.7; the component four is as follows: ion regulators: 0.1 to 2.8; the component seven is: ionic crosslinking agent: 0.1 to 4.2; the component eight: ionic curing agent: 0.2 to 6.8; the component five is as follows: pH regulators: 0.1 to 2.2; the component six: nano dispersant: 0.01 to 2.2; the component seven is: ionic solution stabilizer: 0.1 to 3.2; the component eight: deionized water: 15-55; through the nano deposition of the graphene coating on the surface of the carbon material structural member, the compactness of the surface of the carbon material structural member is improved, the carbon material structural member is effectively prevented from powder falling, is high-temperature resistant, does not change the characteristics of the carbon material, improves the water resistance, medium and low temperature oxidation resistance, is water-boiling resistant, is moisture-heat resistant, and prolongs the service life.
Description
Technical Field
The invention belongs to the technical field of carbon material surface treatment, and particularly relates to a high-temperature-resistant densified nano deposited graphene coating technology on the surface of a carbon material.
Background
The carbon material structural part (mainly comprising a graphite structural part and a carbon fiber structural part) has many advantages, but the condition of insufficient surface density and even powder falling generally exists in the use process, so that the working condition with high purity requirement is difficult to adapt;
the carbon material structural part is mainly used for the working condition of a high-temperature or ultrahigh-temperature thermal field, for example, in the production process of monocrystalline silicon, a large number of carbon material structural parts (a carbon fiber crucible, a carbon fiber heat-insulating felt and the like) are used, the requirement on the cleanliness of the whole environment is high, the traditional process cannot meet the requirement, a graphite mold or a graphite structural part has higher requirement on the surface density, and the problem that the application of the graphite mold and other graphite structural parts is hindered due to insufficient powder falling of the surface density is solved, so that a nano-deposition graphene coating technology for the high-temperature-resistant densification of the surface of the carbon material is provided.
Disclosure of Invention
The invention aims to provide a nano-deposition graphene coating technology for high-temperature-resistant densification of the surface of a carbon material, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a technology for preparing a high-temperature-resistant densified nano deposited graphene coating on the surface of a carbon material comprises the following components in parts by weight:
the component one: graphene: 0.2 to 9.3;
and (2) component two: carbon nanotube: 0.1 to 8.2;
the third component: magnetic-electric ion complexing agent: 0.2 to 7.7;
the component four is as follows: ion regulators: 0.1 to 2.8;
the component seven is: ionic crosslinking agent: 0.1 to 4.2;
the component eight: ionic curing agent: 0.2 to 6.8;
the component five is as follows: pH regulators: 0.1 to 2.2;
the component six: nano dispersant: 0.01 to 2.2;
the component seven is: ionic solution stabilizer: 0.1 to 3.2;
the component eight: deionized water: 15-55;
the preparation steps are as follows:
the method comprises the following steps: mixing and curing graphene, a carbon nano tube, a magnetoelectric ion complexing agent, an ion regulator, an ion cross-linking agent, an ion curing agent, a pH regulator, a nano dispersant, an ionic solution stabilizer and deionized water at normal temperature and normal pressure to form stable curing liquid for later use;
step two: nano-dispersing the curing liquid at a low temperature to form a stable nano-dispersion liquid;
step three: curing the stable nano dispersion liquid at normal temperature and normal pressure to form stable graphene nano deposition liquid for later use;
step four: a production line tool is arranged on the carbon material structural part;
step five: pretreating a carbon material structural member, namely performing water cyclic oil removal, grease removal and deburring at normal temperature and normal pressure, and then performing magnetization pretreatment on the carbon material structural member at normal temperature and normal pressure, wherein the magnetization pretreatment is performed on the carbon material structural member for later use;
step six: the method comprises the following steps of immersing a magnetization pretreatment carbon material structural member into graphene nano deposition liquid, adjusting the magnetic field of the graphene nano deposition liquid to be matched with the magnetic field of the magnetization pretreatment carbon material structural member, adjusting the polarity of the magnetic field to realize graphene nano liquid deposition, and forming a stable, uniform and directional graphene nano coating mainly containing graphene on the surface of the magnetization pretreatment carbon material structural member to form a nano deposition graphene carbon material structural member;
step seven: removing non-controlled deposition ions and deposits on the surface of the nano-deposition graphene carbon material structural member in a normal-temperature normal-pressure circulating liquid phase matched with magnetic field control to form a magnetic field controlled nano-deposition graphene coating carbon material structural member;
step eight: the magnetic field controlled nano-deposition graphene coating carbon material structural member is heated at normal pressure, and the coating is rearranged, densified and functionalized;
step nine: heating the functionalized carbon material structural member at normal pressure to perform vapor deposition, performing forced arrangement and complete crosslinking densification on the rearranged and densified graphene coating after liquid phase deposition under the action of a matched magnetic field, repairing liquid phase deposition defect coating homogenization through vapor deposition, and simultaneously performing directional arrangement on liquid phase deposition graphene units again to realize complete densification;
step ten: and cooling the carbon material structural member subjected to vapor deposition to normal temperature, and packaging the finished product.
Preferably, the normal temperature in the first step is controlled to be 5-40 ℃, and the curing time is controlled to be 24-48 hours.
Preferably, the low temperature in the second step is controlled to be 5-28 ℃, the dispersion time is controlled to be 3-28 hours, and the solid-phase average particle size of the nano dispersion liquid is controlled to be 50-12 microns.
Preferably, the normal temperature in the third step and the temperature in the fifth step are both controlled to be 5-40 ℃, and the curing time in the third step is controlled to be 24-96 hours.
Preferably, the heating temperature in the eighth step is controlled to be 45-280 ℃, and the water content of the coating is controlled to be 1-5%.
Preferably, the heating temperature in the ninth step is controlled to be 50-350 ℃.
Preferably, the ionic crosslinking agent is one of isocyanate and acyl chloride.
Preferably, the ion regulator is one of sodium chloride, sodium citrate, glacial acetic acid and sodium hydroxide.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the graphene coating is nano-deposited on the surface of the carbon material structural member, so that the compactness of the surface of the carbon material structural member is improved, the carbon material structural member is effectively prevented from powder falling and is resistant to high temperature, the characteristics of the carbon material are not changed, the water resistance, medium and low temperature oxidation resistance, boiling resistance, humidity and heat resistance and the service life of the carbon material structural member (a carbon fiber frame member and a graphite structural member) are improved, and the service life is prolonged.
Drawings
Fig. 1 is a schematic flow chart of the preparation process of the nano-deposition graphene coating.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1, the present invention provides a technical solution: a technology for preparing a high-temperature-resistant densified nano deposited graphene coating on the surface of a carbon material comprises the following components in parts by weight:
the component one: graphene: 9.3;
and (2) component two: carbon nanotube: 8.2;
the third component: magnetic-electric ion complexing agent: 7.7;
the component four is as follows: ion regulators: 2.8 of;
the component seven is: ionic crosslinking agent: 4.2;
the component eight: ionic curing agent: 6.8;
the component five is as follows: pH regulators: 2.2;
the component six: nano dispersant: 2.2;
the component seven is: ionic solution stabilizer: 3.2;
the component eight: deionized water: 53.4;
the preparation steps are as follows:
the method comprises the following steps: mixing and curing graphene, a carbon nano tube, a magnetoelectric ion complexing agent, an ion regulator, an ion cross-linking agent, an ion curing agent, a pH regulator, a nano dispersant, an ionic solution stabilizer and deionized water at normal temperature and normal pressure to form stable curing liquid for later use;
step two: nano-dispersing the curing liquid at a low temperature to form a stable nano-dispersion liquid;
step three: curing the stable nano dispersion liquid at normal temperature and normal pressure to form stable graphene nano deposition liquid for later use;
step four: a production line tool is arranged on the carbon material structural part;
step five: pretreating a carbon material structural member, namely performing water cyclic oil removal, grease removal and deburring at normal temperature and normal pressure, and then performing magnetization pretreatment on the carbon material structural member at normal temperature and normal pressure, wherein the magnetization pretreatment is performed on the carbon material structural member for later use;
step six: the method comprises the following steps of immersing a magnetization pretreatment carbon material structural member into graphene nano deposition liquid, adjusting the magnetic field of the graphene nano deposition liquid to be matched with the magnetic field of the magnetization pretreatment carbon material structural member, adjusting the polarity of the magnetic field to realize graphene nano liquid deposition, and forming a stable, uniform and directional graphene nano coating mainly containing graphene on the surface of the magnetization pretreatment carbon material structural member to form a nano deposition graphene carbon material structural member;
step seven: removing non-controlled deposition ions and deposits on the surface of the nano-deposition graphene carbon material structural member in a normal-temperature normal-pressure circulating liquid phase matched with magnetic field control to form a magnetic field controlled nano-deposition graphene coating carbon material structural member;
step eight: the magnetic field controlled nano-deposition graphene coating carbon material structural member is heated at normal pressure, and the coating is rearranged, densified and functionalized;
step nine: heating the functionalized carbon material structural member at normal pressure to perform vapor deposition, performing forced arrangement and complete crosslinking densification on the rearranged and densified graphene coating after liquid phase deposition under the action of a matched magnetic field, repairing liquid phase deposition defect coating homogenization through vapor deposition, and simultaneously performing directional arrangement on liquid phase deposition graphene units again to realize complete densification;
step ten: and cooling the carbon material structural member subjected to vapor deposition to normal temperature, and packaging the finished product.
Further, in the first step, the normal temperature is controlled at 5 ℃, and the curing time is controlled at 24 hours.
Further, the low temperature in the second step is controlled at 5 ℃, the dispersion time is controlled at 3 hours, and the solid phase average particle size of the nano dispersion liquid is controlled at 50 nm.
Furthermore, the normal temperature in the third step and the normal temperature in the fifth step are both controlled at 5 ℃, and the curing time in the third step is controlled at 24 hours.
And furthermore, in the eighth step, the heating temperature is controlled to be 45 ℃, and the water content of the coating is controlled to be 1%.
Further, in the ninth step, the heating temperature is controlled to 50 ℃.
Furthermore, the ionic crosslinking agent is isocyanate.
Further, sodium chloride is selected as the ion regulator.
Example 2
Referring to fig. 1, the present invention provides a technical solution: a technology for preparing a high-temperature-resistant densified nano deposited graphene coating on the surface of a carbon material comprises the following components in parts by weight:
the component one: graphene: 9.2;
and (2) component two: carbon nanotube: 8.1;
the third component: magnetic-electric ion complexing agent: 7.6;
the component four is as follows: ion regulators: 2.7;
the component seven is: ionic crosslinking agent: 4.2;
the component eight: ionic curing agent: 6.8;
the component five is as follows: pH regulators: 2.1;
the component six: nano dispersant: 2.1;
the component seven is: ionic solution stabilizer: 3.2;
the component eight: deionized water: 54, a first electrode;
the preparation steps are as follows:
the method comprises the following steps: mixing and curing graphene, a carbon nano tube, a magnetoelectric ion complexing agent, an ion regulator, an ion cross-linking agent, an ion curing agent, a pH regulator, a nano dispersant, an ionic solution stabilizer and deionized water at normal temperature and normal pressure to form stable curing liquid for later use;
step two: nano-dispersing the curing liquid at a low temperature to form a stable nano-dispersion liquid;
step three: curing the stable nano dispersion liquid at normal temperature and normal pressure to form stable graphene nano deposition liquid for later use;
step four: a production line tool is arranged on the carbon material structural part;
step five: pretreating a carbon material structural member, namely performing water cyclic oil removal, grease removal and deburring at normal temperature and normal pressure, and then performing magnetization pretreatment on the carbon material structural member at normal temperature and normal pressure, wherein the magnetization pretreatment is performed on the carbon material structural member for later use;
step six: the method comprises the following steps of immersing a magnetization pretreatment carbon material structural member into graphene nano deposition liquid, adjusting the magnetic field of the graphene nano deposition liquid to be matched with the magnetic field of the magnetization pretreatment carbon material structural member, adjusting the polarity of the magnetic field to realize graphene nano liquid deposition, and forming a stable, uniform and directional graphene nano coating mainly containing graphene on the surface of the magnetization pretreatment carbon material structural member to form a nano deposition graphene carbon material structural member;
step seven: removing non-controlled deposition ions and deposits on the surface of the nano-deposition graphene carbon material structural member in a normal-temperature normal-pressure circulating liquid phase matched with magnetic field control to form a magnetic field controlled nano-deposition graphene coating carbon material structural member;
step eight: the magnetic field controlled nano-deposition graphene coating carbon material structural member is heated at normal pressure, and the coating is rearranged, densified and functionalized;
step nine: heating the functionalized carbon material structural member at normal pressure to perform vapor deposition, performing forced arrangement and complete crosslinking densification on the rearranged and densified graphene coating after liquid phase deposition under the action of a matched magnetic field, repairing liquid phase deposition defect coating homogenization through vapor deposition, and simultaneously performing directional arrangement on liquid phase deposition graphene units again to realize complete densification;
step ten: and cooling the carbon material structural member subjected to vapor deposition to normal temperature, and packaging the finished product.
Further, in the first step, the normal temperature is controlled at 40 ℃, and the curing time is controlled at 48 hours.
Further, the low temperature in the second step is controlled at 28 ℃, the dispersion time is controlled at 28 hours, and the solid phase average particle size of the nano dispersion liquid is controlled at 50 nm.
Furthermore, the normal temperature in the third step and the normal temperature in the fifth step are both controlled at 40 ℃, and the curing time in the third step is controlled at 96 hours.
Further, in the eighth step, the heating temperature is controlled to be 280 ℃, and the water content of the coating is controlled to be 5%.
Further, in the ninth step, the warming temperature is controlled at 350 ℃.
Furthermore, the ionic crosslinking agent is acyl chloride.
Furthermore, the ion regulator is sodium citrate.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (8)
1. A carbon material surface high temperature resistant densified nano deposition graphene coating technology is characterized by comprising the following components in parts by mass:
the component one: graphene: 0.2 to 9.3;
and (2) component two: carbon nanotube: 0.1 to 8.2;
the third component: magnetic-electric ion complexing agent: 0.2 to 7.7;
the component four is as follows: ion regulators: 0.1 to 2.8;
the component seven is: ionic crosslinking agent: 0.1 to 4.2;
the component eight: ionic curing agent: 0.2 to 6.8;
the component five is as follows: pH regulators: 0.1 to 2.2;
the component six: nano dispersant: 0.01 to 2.2;
the component seven is: ionic solution stabilizer: 0.1 to 3.2;
the component eight: deionized water: 15-55;
the preparation steps are as follows:
the method comprises the following steps: mixing and curing graphene, a carbon nano tube, a magnetoelectric ion complexing agent, an ion regulator, an ion cross-linking agent, an ion curing agent, a pH regulator, a nano dispersant, an ionic solution stabilizer and deionized water at normal temperature and normal pressure to form stable curing liquid for later use;
step two: nano-dispersing the curing liquid at a low temperature to form a stable nano-dispersion liquid;
step three: curing the stable nano dispersion liquid at normal temperature and normal pressure to form stable graphene nano deposition liquid for later use;
step four: a production line tool is arranged on the carbon material structural part;
step five: pretreating a carbon material structural member, namely performing water cyclic oil removal, grease removal and deburring at normal temperature and normal pressure, and then performing magnetization pretreatment on the carbon material structural member at normal temperature and normal pressure, wherein the magnetization pretreatment is performed on the carbon material structural member for later use;
step six: the method comprises the following steps of immersing a magnetization pretreatment carbon material structural member into graphene nano deposition liquid, adjusting the magnetic field of the graphene nano deposition liquid to be matched with the magnetic field of the magnetization pretreatment carbon material structural member, adjusting the polarity of the magnetic field to realize graphene nano liquid deposition, and forming a stable, uniform and directional graphene nano coating mainly containing graphene on the surface of the magnetization pretreatment carbon material structural member to form a nano deposition graphene carbon material structural member;
step seven: removing non-controlled deposition ions and deposits on the surface of the nano-deposition graphene carbon material structural member in a normal-temperature normal-pressure circulating liquid phase matched with magnetic field control to form a magnetic field controlled nano-deposition graphene coating carbon material structural member;
step eight: the magnetic field controlled nano-deposition graphene coating carbon material structural member is heated at normal pressure, and the coating is rearranged, densified and functionalized;
step nine: heating the functionalized carbon material structural member at normal pressure to perform vapor deposition, performing forced arrangement and complete crosslinking densification on the rearranged and densified graphene coating after liquid phase deposition under the action of a matched magnetic field, repairing liquid phase deposition defect coating homogenization through vapor deposition, and simultaneously performing directional arrangement on liquid phase deposition graphene units again to realize complete densification;
step ten: and cooling the carbon material structural member subjected to vapor deposition to normal temperature, and packaging the finished product.
2. The nano-deposition graphene coating technology for high-temperature-resistant densification of the surface of carbon material according to claim 1, wherein: in the first step, the normal temperature is controlled to be 5-40 ℃, and the curing time is controlled to be 24-48 hours.
3. The nano-deposition graphene coating technology for high-temperature-resistant densification of the surface of carbon material according to claim 1, wherein: and in the second step, the low temperature is controlled to be 5-28 ℃, the dispersion time is controlled to be 3-28 hours, and the solid-phase average particle size of the nano dispersion liquid is controlled to be 50-12 microns.
4. The nano-deposition graphene coating technology for high-temperature-resistant densification of the surface of carbon material according to claim 1, wherein: the normal temperature in the third step and the temperature in the fifth step are both controlled to be 5-40 ℃, and the curing time in the third step is controlled to be 24-96 hours.
5. The nano-deposition graphene coating technology for high-temperature-resistant densification of the surface of carbon material according to claim 1, wherein: in the eighth step, the heating temperature is controlled to be 45-280 ℃, and the water content of the coating is controlled to be 1-5%.
6. The nano-deposition graphene coating technology for high-temperature-resistant densification of the surface of carbon material according to claim 1, wherein: in the ninth step, the heating temperature is controlled to be 50-350 ℃.
7. The nano-deposition graphene coating technology for high-temperature-resistant densification of the surface of carbon material according to claim 1, wherein: the ionic crosslinking agent is one of isocyanate and acyl chloride.
8. The nano-deposition graphene coating technology for high-temperature-resistant densification of the surface of carbon material according to claim 1, wherein: the ion regulator is selected from one of sodium chloride, sodium citrate, glacial acetic acid and sodium hydroxide.
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Cited By (1)
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| CN114405790A (en) * | 2021-12-22 | 2022-04-29 | 中微纳新能源科技(东莞)有限公司 | Method for improving heat conduction and heat dissipation through nano-deposition graphene coating |
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| CN114405790A (en) * | 2021-12-22 | 2022-04-29 | 中微纳新能源科技(东莞)有限公司 | Method for improving heat conduction and heat dissipation through nano-deposition graphene coating |
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Application publication date: 20210702 |