CN113061961A - Method for improving corrosion resistance through nano-deposition graphene composite nano-ceramic coating - Google Patents
Method for improving corrosion resistance through nano-deposition graphene composite nano-ceramic coating Download PDFInfo
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Abstract
The invention discloses a method for improving corrosion resistance by nano-deposition of a graphene composite nano-ceramic coating, which comprises the following steps of S1: proportioning nano deposited graphene coating slurry, mixing and curing the nano deposited graphene coating slurry at normal temperature and pressure for 24-48h to form a cured liquid; s2: dispersing the cured liquid at low temperature in a nanometer way, adding a magnetoelectric ion complexing agent, an ion regulator, an ion crosslinking agent, an ion curing agent, a PH regulator, a nanometer dispersing agent and an ionic solution stabilizer in the dispersing process, and dispersing for 3-36 hours to form nanometer dispersion liquid; the method is firstly fundamentally solved from the coating material, and simultaneously, the nano deposition process is perfectly matched with the coating material, so that the directional compact arrangement of the microscopic units of the anticorrosive material is realized, the coating is combined with the material of the anticorrosive workpiece at the ion level, the ion level of the coating is compact, the corrosion-resistant working condition of the coating is efficiently improved, the high corrosion resistance, the corrosion resistance at the medium-high temperature of more than 500 ℃ and the thermal shock resistance (the cold and thermal shock resistance) are realized.
Description
Technical Field
The invention belongs to the technical field of corrosion resistance, and particularly relates to a method for improving corrosion resistance through a nano-deposition graphene composite nano-ceramic coating.
Background
Some offshore, sea island, marine components and facilities need to be resistant to marine high-salt high-humidity corrosion first, and a stable solution is needed to severe corrosion conditions;
meanwhile, various materials (such as a battery anode, a battery cathode, electrolyte materials and the like) required by some new energy sources need to resist corrosion of corresponding media during production, storage and stable operation in the application process, chemical engineering is the basis of new energy sources, and corrosion prevention is the most basic wide requirement;
the four pipes and the heat exchanger of the power plant boiler are core components for ensuring energy conversion, need to stably operate under severe working conditions (high temperature, high humidity and high corrosion), and are based on corrosion resistance.
The existing corrosion-resistant method is mainly characterized in that conventional metals are replaced by rare metals or noble metals, so that the cost is increased sharply, or parts which are often corroded are changed into independent loss parts, the parts are replaced at high frequency at regular intervals, the efficiency is influenced by shutdown, meanwhile, the problems of replacement and maintenance cost of the parts are obviously increased, or the problems are solved through a surface treatment coating, but the problem that the high-requirement working condition cannot be solved basically for a long time, time and labor are wasted, the time is wasted, and the economic cost is increased.
Disclosure of Invention
The invention aims to provide a method for improving corrosion resistance by nano-depositing a graphene composite nano-ceramic coating, and aims to solve the problems that the conventional corrosion resistance method proposed in the background art is mostly used for replacing conventional metals with rare metals or noble metals, so that the cost is increased sharply, or parts which are often corroded are replaced by independent loss parts, and the efficiency is influenced by shutdown and production stoppage due to regular high-frequency replacement.
In order to achieve the purpose, the invention provides the following technical scheme: a method for improving corrosion resistance by nano-depositing a graphene composite nano-ceramic coating comprises,
s1: proportioning nano deposited graphene coating slurry, mixing and curing the nano deposited graphene coating slurry at normal temperature and pressure for 24-48h to form a cured liquid;
s2: dispersing the cured liquid at low temperature in a nanometer way, adding a magnetoelectric ion complexing agent, an ion regulator, an ion crosslinking agent, an ion curing agent, a PH regulator, a nanometer dispersing agent and an ionic solution stabilizer in the dispersing process, and dispersing for 3-36 hours to form nanometer dispersion liquid;
s3: curing the nano dispersion liquid at normal temperature and pressure for 24-96 hours to form graphene composite nano ceramic nano deposition liquid for later use;
s4: hanging the anti-corrosion part on a production line tool;
s5: pretreating an anticorrosive part, namely performing water-based circulating oil removal, grease removal and deburring at normal temperature and normal pressure, wherein the pretreated anticorrosive part is reserved;
s6: carrying out normal-temperature normal-pressure magnetization pretreatment on the pretreated anticorrosive component;
s7: the magnetization pretreatment anticorrosion part enters the graphene composite nano ceramic nano deposition liquid prepared in S3, the magnetic field of the graphene composite nano ceramic nano deposition liquid is controlled to be matched with the magnetic field of the magnetization pretreated anticorrosion part by an external magnetic field matching device system, the graphene composite nano ceramic nano liquid deposition is realized by controlling the polarity of the magnetic field, and a stable, uniform and directional graphene composite nano ceramic coating mainly containing graphene composite nano ceramic is formed on the surface of the anticorrosion part;
s8: removing non-controlled deposition ions and deposits downwards on the surface of the nano-deposition graphene composite nano-ceramic anticorrosive component by using normal-temperature normal-pressure circulating liquid matched with magnetic field control to form a magnetic field controlled nano-deposition graphene composite nano-ceramic coating anticorrosive component;
s9: the magnetic field controlled nano deposition graphene composite nano ceramic coating anticorrosion part heats the coating at normal pressure to rearrange and densify the coating;
s10: performing rearrangement densification coating functionalization on the nano-deposition graphene composite nano-ceramic coating according to requirements;
s11: the functionalized anticorrosion part is subjected to normal-pressure heating vapor deposition, the rearranged and densified graphene composite nano-ceramic coating after liquid phase deposition is subjected to forced arrangement and complete crosslinking densification again under the action of a matched magnetic field, the vapor deposition repairs the liquid phase deposition defect coating to be homogenized, and meanwhile, the liquid phase deposition graphene composite nano-ceramic units are arranged in a directional mode again to realize complete densification;
s12: cooling the anticorrosive parts subjected to vapor deposition to normal temperature, and packaging finished products;
the nano-deposition graphene coating slurry in the S1 is as follows:
0.2 to 8.6 percent of graphene, 0.1 to 5.2 percent of carbon composite material, 0.1 to 8.9 percent of nitride, 0.9 to 21.5 percent of nano silicon dioxide, 0.6 to 7.8 percent of nano aluminum oxide, 0.3 to 7.9 percent of magnetoelectric ion complexing agent, 0.2 to 4.3 percent of ion regulator, 0.2 to 4.8 percent of ion cross-linking agent, 0.3 to 8.8 percent of ion curing agent, 0.1 to 2.8 percent of PH regulator, 0.02 to 2.4 percent of nano dispersant, 0.1 to 4.2 percent of ionic solution stabilizer and 12 to 58 percent of deionized water.
Preferably, the normal temperature in the S1 is 5-40 ℃.
Preferably, the low-temperature of the curing liquid in the S2 is 5-28 ℃.
Preferably, the average particle size of the solid phase of the dispersion in S2 is 5 nm-12 μm.
Preferably, the normal temperature of the S3, the S5 and the S6 is 5-40 ℃.
Preferably, the circulating liquid at normal temperature and normal pressure in the S8 can be reused.
Preferably, the heating temperature in the S9 is 45-280 ℃, and the water content of the nano-deposition graphene composite nano-ceramic coating in the S9 is lower than 5%.
Preferably, the heating temperature in the S11 is 50-550 ℃.
Preferably, the carbon composite material is silicon carbide and carbon nanotubes, and the nitride is boron nitride and silicon nitride.
Preferably, the graphene coating slurry is as follows:
1.3% of graphene, 2.2% of carbon composite material, 3.7% of nitride, 10.7% of nano silicon dioxide, 3.9% of nano aluminum oxide, 1.8% of magnetoelectric ion complexing agent, 2.8% of ion regulator, 3.3% of ion crosslinking agent, 8.2% of ion curing agent, 2.6% of pH regulator, 2.1% of nano dispersant, 3.4% of ionic solution stabilizer and 54% of deionized water.
Compared with the prior art, the invention has the beneficial effects that:
the method is firstly fundamentally solved from a coating material, and simultaneously, a nano deposition process is perfectly matched with the coating material, so that the directional and compact arrangement of microscopic units of the anticorrosive material is realized, the coating is combined with an anticorrosive workpiece material in an ion level manner, the ion level of the coating is compact, the corrosion-resistant working condition of the coating is efficiently improved, the high corrosion resistance is realized, the corrosion resistance at a medium-high temperature of more than 500 ℃ is realized, the thermal shock resistance (thermal shock resistance) is realized, the full coverage of the coating can be realized, and the coating thickness is accurately controlled (the highest precision is.
Meanwhile, the long-acting stable corrosion prevention can be realized under the corrosion prevention working conditions of harsh or extremely harsh working conditions (ocean, desert, chemical engineering, heat exchange and medium-high temperature), the thickness of the coating is about 30 micrometers, and the neutral salt spray test can be realized for more than 6000 hours at most.
And the thin coating has high corrosion resistance for precision parts with high precision requirements, such as instruments, electrical, electronic, shafts, sleeves and rails. The normal precision of the coating thickness is controlled within +/-3 microns, the highest precision can be stably controlled within +/-1 micron, and the acid-base resistance and the neutral salt spray resistance of the precision assembly part are realized for more than 480 hours by about 3 microns of the coating thickness.
Under the working condition of liquid phase or gas phase operation, full-coverage long-acting stable corrosion prevention is needed, such as a reaction kettle, a container, a pipeline, a cabinet and the like, the corrosion resistance of three strong acids (sulfuric acid, hydrochloric acid and nitric acid) and strong alkali with high concentration can be realized, and the corrosion resistance of complex working condition with high temperature of more than 600 ℃ can be realized.
In the field of medium-high temperature corrosion, the coating can resist high-temperature corrosion of more than 850 ℃, is not easy to fall off due to thermal shock resistance (the maximum cycle from 600 ℃ to room temperature can reach more than 1 ten thousand times), and is long-acting, stable and high-temperature corrosion-resistant.
Drawings
FIG. 1 is a schematic flow diagram of the process of the present invention;
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 method for improving corrosion resistance by nano-depositing a graphene composite nano-ceramic coating comprises,
s1: proportioning nano deposited graphene coating slurry, mixing and curing the nano deposited graphene coating slurry at normal temperature and pressure for 24-48h to form a curing liquid;
s2: dispersing the cured liquid at low temperature in a nanometer way, adding a magnetoelectric ion complexing agent, an ion regulator, an ion crosslinking agent, an ion curing agent, a PH regulator, a nanometer dispersing agent and an ionic solution stabilizer in the dispersing process, and dispersing for 3-36 hours to form nanometer dispersion liquid;
s3: curing the nano dispersion liquid at normal temperature and pressure for 24-96 hours to form graphene composite nano ceramic nano deposition liquid for later use;
s4: hanging the anti-corrosion part on a production line tool;
s5: pretreating an anticorrosive part, namely performing water-based circulating oil removal, grease removal and deburring at normal temperature and normal pressure, wherein the pretreated anticorrosive part is reserved;
s6: carrying out normal-temperature normal-pressure magnetization pretreatment on the pretreated anticorrosive component;
s7: the magnetization pretreatment anticorrosion part enters the graphene composite nano ceramic nano deposition liquid prepared in S3, the magnetic field of the graphene composite nano ceramic nano deposition liquid is controlled to be matched with the magnetic field of the magnetization pretreated anticorrosion part by an external magnetic field matching device system, the graphene composite nano ceramic nano liquid deposition is realized by controlling the polarity of the magnetic field, and a stable, uniform and directional graphene composite nano ceramic coating mainly containing graphene composite nano ceramic is formed on the surface of the anticorrosion part;
s8: removing non-controlled deposition ions and deposits downwards on the surface of the nano-deposition graphene composite nano-ceramic anticorrosive component by using normal-temperature normal-pressure circulating liquid matched with magnetic field control to form a magnetic field controlled nano-deposition graphene composite nano-ceramic coating anticorrosive component;
s9: the magnetic field controlled nano deposition graphene composite nano ceramic coating anticorrosion part heats the coating at normal pressure to rearrange and densify the coating;
s10: rearranging and densifying the nano-deposited graphene composite nano-ceramic coating according to the requirement to realize coating functionalization;
s11: the functionalized anticorrosion part is subjected to normal-pressure heating vapor deposition, the rearranged and densified graphene composite nano-ceramic coating after liquid phase deposition is subjected to forced arrangement and complete crosslinking densification again under the action of a matched magnetic field, the vapor deposition repairs the liquid phase deposition defect coating to be homogenized, and meanwhile, the liquid phase deposition graphene composite nano-ceramic units are arranged in a directional mode again to realize complete densification;
s12: cooling the anticorrosive parts subjected to vapor deposition to normal temperature, and packaging finished products;
the nano-deposition graphene coating slurry in S1 is as follows:
0.2 to 8.6 percent of graphene, 0.1 to 5.2 percent of carbon composite material, 0.1 to 8.9 percent of nitride, 0.9 to 21.5 percent of nano silicon dioxide, 0.6 to 7.8 percent of nano aluminum oxide, 0.3 to 7.9 percent of magnetoelectric ion complexing agent, 0.2 to 4.3 percent of ion regulator, 0.2 to 4.8 percent of ion cross-linking agent, 0.3 to 8.8 percent of ion curing agent, 0.1 to 2.8 percent of PH regulator, 0.02 to 2.4 percent of nano dispersant, 0.1 to 4.2 percent of ionic solution stabilizer and 12 to 58 percent of deionized water.
In this embodiment, the normal temperature in S1 is preferably 5 ℃ to 40 ℃.
In this embodiment, the low temperature of the aging liquid in S2 is preferably 5 ℃ to 28 ℃.
In this embodiment, the average particle diameter (D50) of the solid phase of the dispersion in S2 is preferably 5 nm to 12 μm.
In this embodiment, it is preferable that the normal temperature in each of S3, S5, and S6 is 5 ℃ to 40 ℃.
In this embodiment, preferably, the circulating liquid at normal temperature and normal pressure in S8 can be reused.
In this embodiment, preferably, the heating temperature in S9 is 45 ℃ to 280 ℃, and the water content of the nano-deposition graphene composite nano-ceramic coating in S9 is less than 5%.
In this embodiment, the heating temperature in S11 is preferably 50 ℃ to 550 ℃.
In this embodiment, preferably, the carbon composite material is silicon carbide or carbon nanotubes, and the nitride is boron nitride or silicon nitride.
In this embodiment, preferably, the graphene coating slurry is as follows:
1.3% of graphene, 2.2% of carbon composite material, 3.7% of nitride, 10.7% of nano silicon dioxide, 3.9% of nano aluminum oxide, 1.8% of magnetoelectric ion complexing agent, 2.8% of ion regulator, 3.3% of ion crosslinking agent, 8.2% of ion curing agent, 2.6% of pH regulator, 2.1% of nano dispersant, 3.4% of ionic solution stabilizer and 54% of deionized water.
Example 2
Referring to fig. 1, the present invention provides a technical solution: a method for improving corrosion resistance by nano-depositing a graphene composite nano-ceramic coating comprises,
s1: proportioning nano deposited graphene coating slurry, mixing and curing the nano deposited graphene coating slurry at normal temperature and pressure for 24-48h to form a curing liquid;
s2: dispersing the cured liquid at low temperature in a nanometer way, adding a magnetoelectric ion complexing agent, an ion regulator, an ion crosslinking agent, an ion curing agent, a PH regulator, a nanometer dispersing agent and an ionic solution stabilizer in the dispersing process, and dispersing for 3-36 hours to form nanometer dispersion liquid;
s3: curing the nano dispersion liquid at normal temperature and pressure for 24-96 hours to form graphene composite nano ceramic nano deposition liquid for later use;
s4: hanging the anti-corrosion part on a production line tool;
s5: pretreating an anticorrosive part, namely performing water-based circulating oil removal, grease removal and deburring at normal temperature and normal pressure, wherein the pretreated anticorrosive part is reserved;
s6: carrying out normal-temperature normal-pressure magnetization pretreatment on the pretreated anticorrosive component;
s7: the magnetization pretreatment anticorrosion part enters the graphene composite nano ceramic nano deposition liquid prepared in S3, the magnetic field of the graphene composite nano ceramic nano deposition liquid is controlled to be matched with the magnetic field of the magnetization pretreated anticorrosion part by an external magnetic field matching device system, the graphene composite nano ceramic nano liquid deposition is realized by controlling the polarity of the magnetic field, and a stable, uniform and directional graphene composite nano ceramic coating mainly containing graphene composite nano ceramic is formed on the surface of the anticorrosion part;
s8: removing non-controlled deposition ions and deposits downwards on the surface of the nano-deposition graphene composite nano-ceramic anticorrosive component by using normal-temperature normal-pressure circulating liquid matched with magnetic field control to form a magnetic field controlled nano-deposition graphene composite nano-ceramic coating anticorrosive component;
s9: the magnetic field controlled nano deposition graphene composite nano ceramic coating anticorrosion part heats the coating at normal pressure to rearrange and densify the coating;
s10: rearranging and densifying the nano-deposited graphene composite nano-ceramic coating according to the requirement to realize coating functionalization;
s11: the functionalized anticorrosion part is subjected to normal-pressure heating vapor deposition, the rearranged and densified graphene composite nano-ceramic coating after liquid phase deposition is subjected to forced arrangement and complete crosslinking densification again under the action of a matched magnetic field, the vapor deposition repairs the liquid phase deposition defect coating to be homogenized, and meanwhile, the liquid phase deposition graphene composite nano-ceramic units are arranged in a directional mode again to realize complete densification;
s12: cooling the anticorrosive parts subjected to vapor deposition to normal temperature, and packaging finished products;
the nano-deposition graphene coating slurry in S1 is as follows:
0.2 to 8.6 percent of graphene, 0.1 to 5.2 percent of carbon composite material, 0.1 to 8.9 percent of nitride, 0.9 to 21.5 percent of nano silicon dioxide, 0.6 to 7.8 percent of nano aluminum oxide, 0.3 to 7.9 percent of magnetoelectric ion complexing agent, 0.2 to 4.3 percent of ion regulator, 0.2 to 4.8 percent of ion cross-linking agent, 0.3 to 8.8 percent of ion curing agent, 0.1 to 2.8 percent of PH regulator, 0.02 to 2.4 percent of nano dispersant, 0.1 to 4.2 percent of ionic solution stabilizer and 12 to 58 percent of deionized water.
In this embodiment, the normal temperature in S1 is preferably 5 ℃ to 40 ℃.
In this embodiment, the low temperature of the aging liquid in S2 is preferably 5 ℃ to 28 ℃.
In this embodiment, the average particle diameter (D50) of the solid phase of the dispersion in S2 is preferably 5 nm to 12 μm.
In this embodiment, it is preferable that the normal temperature in each of S3, S5, and S6 is 5 ℃ to 40 ℃.
In this embodiment, preferably, the circulating liquid at normal temperature and normal pressure in S8 can be reused.
In this embodiment, preferably, the heating temperature in S9 is 45 ℃ to 280 ℃, and the water content of the nano-deposition graphene composite nano-ceramic coating in S9 is less than 5%.
In this embodiment, the heating temperature in S11 is preferably 50 ℃ to 550 ℃.
In this embodiment, preferably, the carbon composite material is silicon carbide or carbon nanotubes, and the nitride is boron nitride or silicon nitride.
In this embodiment, preferably, the graphene coating slurry is as follows:
5.3% of graphene, 3.6% of carbon composite material, 4.8% of nitride, 16.2% of nano silicon dioxide, 6.6% of nano aluminum oxide, 6.1% of magnetoelectric ion complexing agent, 3.8% of ion regulator, 4% of ion crosslinking agent, 8.5% of ion curing agent, 1.2% of pH regulator, 1.1% of nano dispersant, 2.4% of ionic solution stabilizer and 36.4% of deionized water.
This gives: the nano-deposition graphene composite nano-ceramic coating is in ionic-grade bonding with an anti-corrosion part (workpiece material), the bonding strength is high, the highest tensile strength can reach more than 20MPa, the corrosion resistance and thermal shock resistance at high temperature (more than 500 ℃) are effectively improved, the bonding strength of a common coating is about 3MPa, and the common coating hardly resists the thermal shock at high temperature (more than 500 ℃);
the nano-deposited graphene composite nano-ceramic coating achieves ion-level density, the hardness of the coating is higher, the maximum pencil scratch can reach 9H, the flexibility is better (bendable), and the hundred-grid test is more guaranteed;
the graphene composite nano ceramic units in the nano deposited graphene composite nano ceramic coating realize microscopic directional arrangement, are more beneficial to improving the density of the coating and improving the corrosion resistance, can realize the neutral salt spray resistance of the coating with the thickness of about 30 micrometers at most for more than 6000 hours, and the microscopic units of the common coating have no directionality, and have good salt spray resistance for 480 hours;
the directional densification arrangement formed by the nano-deposition graphene composite nano-ceramic coating has the advantages that the temperature resistance of the coating can reach more than 850 ℃, the thermal shock resistance is obviously improved, the coating can resist rapid cooling and rapid heating impact, and the maximum heat and cold cycle resistance can exceed more than 1 ten thousand times.
The nano-deposition graphene composite nano-ceramic coating realizes full coverage of the coating and almost zero dead angle by combining liquid phase deposition and vapor deposition double deposition, and realizes the situation that a common coating process of a complex workpiece can not reach a place, especially a narrow space precision workpiece.
The microscopic units of the nano-deposition graphene composite nano-ceramic coating are directionally arranged more compactly, and have higher temperature resistance up to over 850 ℃, and the common electrophoretic coating generally has the temperature resistance of not more than 220 ℃;
the nano deposition graphene composite nano ceramic coating technology is basically completed at normal pressure and relatively low temperature, is more energy-saving, and has high deposition speed and high efficiency compared with CVD and PVD;
the nano-deposition graphene composite nano-ceramic coating technology can realize large-scale batch production, the daily coating area of a single large production line can reach more than 8 ten thousand square meters at most, the cost is advantageous, and the coating technology can replace part of coating requirements with high requirements.
The nano-deposition graphene composite nano-ceramic coating technology has high automation degree of production line and stable quality, and can effectively solve the economic approach of high-requirement corrosion prevention (the specification of corrosion prevention accessories does not need to be changed, a die does not need to be opened, and the assembly is not influenced).
The nano deposited graphene composite nano ceramic coating realizes the synchronous solution of corrosion resistance, heat dissipation and static resistance, and can be used in severe environments or extremely severe environments.
The thickness of the nano-deposition graphene composite nano-ceramic coating can be accurately controlled, the highest precision tolerance can be controlled within +/-1 micron, and the deviation of a common coating is normal above 10 microns.
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 (10)
1. The method for improving corrosion resistance by nano-deposition of the graphene composite nano-ceramic coating is characterized by comprising the following steps: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
s1: proportioning nano deposited graphene coating slurry, mixing and curing the nano deposited graphene coating slurry at normal temperature and pressure for 24-48h to form a cured liquid;
s2: dispersing the cured liquid at low temperature in a nanometer way, adding a magnetoelectric ion complexing agent, an ion regulator, an ion crosslinking agent, an ion curing agent, a PH regulator, a nanometer dispersing agent and an ionic solution stabilizer in the dispersing process, and dispersing for 3-36 hours to form nanometer dispersion liquid;
s3: curing the nano dispersion liquid at normal temperature and pressure for 24-96 hours to form graphene composite nano ceramic nano deposition liquid for later use;
s4: hanging the anti-corrosion part on a production line tool;
s5: pretreating an anticorrosive part, namely performing water-based circulating oil removal, grease removal and deburring at normal temperature and normal pressure, wherein the pretreated anticorrosive part is reserved;
s6: carrying out normal-temperature normal-pressure magnetization pretreatment on the pretreated anticorrosive component;
s7: the magnetization pretreatment anticorrosion part enters the graphene composite nano ceramic nano deposition liquid prepared in S3, the magnetic field of the graphene composite nano ceramic nano deposition liquid is controlled to be matched with the magnetic field of the magnetization pretreated anticorrosion part by an external magnetic field matching device system, the graphene composite nano ceramic nano liquid deposition is realized by controlling the polarity of the magnetic field, and a stable, uniform and directional graphene composite nano ceramic coating mainly containing graphene composite nano ceramic is formed on the surface of the anticorrosion part;
s8: removing non-controlled deposition ions and deposits downwards on the surface of the nano-deposition graphene composite nano-ceramic anticorrosive component by using normal-temperature normal-pressure circulating liquid matched with magnetic field control to form a magnetic field controlled nano-deposition graphene composite nano-ceramic coating anticorrosive component;
s9: the magnetic field controlled nano deposition graphene composite nano ceramic coating anticorrosion part heats the coating at normal pressure to rearrange and densify the coating;
s10: performing rearrangement densification coating functionalization on the nano-deposition graphene composite nano-ceramic coating according to requirements;
s11: the functionalized anticorrosion part is subjected to normal-pressure heating vapor deposition, the rearranged and densified graphene composite nano-ceramic coating after liquid phase deposition is subjected to forced arrangement and complete crosslinking densification again under the action of a matched magnetic field, the vapor deposition repairs the liquid phase deposition defect coating to be homogenized, and meanwhile, the liquid phase deposition graphene composite nano-ceramic units are arranged in a directional mode again to realize complete densification;
s12: cooling the anticorrosive parts subjected to vapor deposition to normal temperature, and packaging finished products;
the nano-deposition graphene coating slurry in the S1 is as follows:
0.2 to 8.6 percent of graphene, 0.1 to 5.2 percent of carbon composite material, 0.1 to 8.9 percent of nitride, 0.9 to 21.5 percent of nano silicon dioxide, 0.6 to 7.8 percent of nano aluminum oxide, 0.3 to 7.9 percent of magnetoelectric ion complexing agent, 0.2 to 4.3 percent of ion regulator, 0.2 to 4.8 percent of ion cross-linking agent, 0.3 to 8.8 percent of ion curing agent, 0.1 to 2.8 percent of PH regulator, 0.02 to 2.4 percent of nano dispersant, 0.1 to 4.2 percent of ionic solution stabilizer and 12 to 58 percent of deionized water.
2. The method of improving corrosion resistance by nano-depositing graphene composite nanoceramic coating according to claim 1, wherein: the normal temperature in the S1 is 5-40 ℃.
3. The method of improving corrosion resistance by nano-depositing graphene composite nanoceramic coating according to claim 1, wherein: the low-temperature of the curing liquid in the S2 is 5-28 ℃.
4. The method of improving corrosion resistance by nano-depositing graphene composite nanoceramic coating according to claim 1, wherein: the average particle size of the dispersed liquid in the S2 in a solid phase is 5 nanometers to 12 micrometers.
5. The method of improving corrosion resistance by nano-depositing graphene composite nanoceramic coating according to claim 1, wherein: the normal temperature of the S3, the S5 and the S6 is 5-40 ℃.
6. The method of improving corrosion resistance by nano-depositing graphene composite nanoceramic coating according to claim 1, wherein: the normal-temperature normal-pressure circulating liquid in the S8 can be reused.
7. The method of improving corrosion resistance by nano-depositing graphene composite nanoceramic coating according to claim 1, wherein: the heating temperature in the S9 is 45-280 ℃, and the water content of the nano-deposition graphene composite nano-ceramic coating in the S9 is lower than 5%.
8. The method of improving corrosion resistance by nano-depositing graphene composite nanoceramic coating according to claim 1, wherein: the heating temperature of the S11 is 50-550 ℃.
9. The method of improving corrosion resistance by nano-depositing graphene composite nanoceramic coating according to claim 1, wherein: the carbon composite material is silicon carbide and carbon nano tubes, and the nitride is boron nitride and silicon nitride.
10. The method of improving corrosion resistance by nano-depositing graphene composite nanoceramic coating according to claim 1, wherein: the graphene coating slurry comprises the following components:
1.3% of graphene, 2.2% of carbon composite material, 3.7% of nitride, 10.7% of nano silicon dioxide, 3.9% of nano aluminum oxide, 1.8% of magnetoelectric ion complexing agent, 2.8% of ion regulator, 3.3% of ion crosslinking agent, 8.2% of ion curing agent, 2.6% of pH regulator, 2.1% of nano dispersant, 3.4% of ionic solution stabilizer and 54% of deionized water.
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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 |
| CN115724644A (en) * | 2022-11-22 | 2023-03-03 | 常州大学 | Ferroferric oxide hybrid carbon nanotube oriented reinforced corrosion-resistant phosphate bonding coating and preparation method and application thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| CN115724644A (en) * | 2022-11-22 | 2023-03-03 | 常州大学 | Ferroferric oxide hybrid carbon nanotube oriented reinforced corrosion-resistant phosphate bonding coating and preparation method and application thereof |
| CN115724644B (en) * | 2022-11-22 | 2023-12-05 | 常州大学 | Ferroferric oxide hybridized carbon nanotube directional reinforced corrosion-resistant phosphate bonding coating, and preparation method and application thereof |
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