CN115180618B - Preparation method of graphene nano-sheet composite powder and product - Google Patents
Preparation method of graphene nano-sheet composite powder and product Download PDFInfo
- Publication number
- CN115180618B CN115180618B CN202210917566.5A CN202210917566A CN115180618B CN 115180618 B CN115180618 B CN 115180618B CN 202210917566 A CN202210917566 A CN 202210917566A CN 115180618 B CN115180618 B CN 115180618B
- Authority
- CN
- China
- Prior art keywords
- powder
- graphene nano
- solvent
- sheet composite
- grinding aid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/182—Graphene
- C01B32/184—Preparation
- C01B32/19—Preparation by exfoliation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2204/00—Structure or properties of graphene
- C01B2204/20—Graphene characterized by its properties
- C01B2204/32—Size or surface area
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Nanotechnology (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The application provides a preparation method of graphene nano-sheet composite powder and a product. The preparation method comprises the following steps: mixing graphite powder, grinding aid powder and a first solvent to obtain a composite powder mixed solution; wherein the mass ratio of the graphite powder to the grinding aid powder to the first solvent is (1-1.5): 1000; stirring the composite powder mixed solution by adopting a periodically-changed rotating speed to obtain graphene nano-sheet composite mother solution; and filtering and drying the graphene nano sheet composite mother solution to obtain graphene nano sheet composite powder. The application introduces the grinding aid powder, adopts pulse alternating shearing, can effectively promote the peeling of the graphene nano-sheets, has the characteristics of high efficiency, low cost and easy industrialization, and the prepared graphene nano-sheet composite powder can be directly used for composite modification of organic resin, inorganic gel and other materials, and has wide application prospect and value.
Description
Technical Field
The application relates to the technical field of nano materials, in particular to a preparation method of graphene nano sheet composite powder and a product.
Background
The graphene nanoplatelets GNSs (Graphene nanosheets) or GNFs (Graphene Nano Flakes), also called carbon nanoplatelets CNFs (Carbon nanoflakes) or carbon nanowalls CNWs (Carbon nanowalls), are stacked by graphene with a single-layer carbon atom planar structure, and have a thickness of nano scale, and in the extreme case, are single-layer graphene.
The industrialized preparation method of the graphene nanoplatelets from top to bottom comprises an oxidation-reduction method, a liquid phase shearing method and a ball milling method. The redox method for preparing the graphene nano-sheets needs to use a large amount of dangerous reagents such as strong acid and strong oxide, is harmful to human health and environment, and needs to perform operations such as cleaning, filtering and centrifugation, thereby increasing synthesis time and cost. The ball milling method requires several tens of hours, and the large-scale process has low production efficiency and poor economic benefit. The liquid phase shearing method is a method taking shearing force as a main factor, and graphene nano sheets can be obtained in a short time by adopting simple high-speed stirring, but the surface energy difference between water and graphite is large, the interaction is small, stripping is not facilitated, and the yield of the graphene nano sheets obtained in pure water is very low.
Disclosure of Invention
In view of the above problems, the present application provides a method for preparing graphene nanoplatelet composite powder and a product thereof, which overcome or at least partially solve the above problems, and the method comprises:
a preparation method of graphene nano-sheet composite powder comprises the following steps:
mixing graphite powder, grinding aid powder and a first solvent to obtain a composite powder mixed solution; wherein the mass ratio of the graphite powder to the grinding aid powder to the first solvent is (1-1.5): (2-5): 1000;
stirring the composite powder mixed solution by adopting a periodically-changed rotating speed to obtain graphene nano-sheet composite mother solution;
and filtering and drying the graphene nano sheet composite mother solution to obtain graphene nano sheet composite powder.
Preferably, the graphite powder material comprises one or more of natural crystalline flake graphite, expandable graphite, expanded graphite and sanded graphite.
Preferably, the material of the grinding aid powder comprises one or more of inorganic nonmetallic materials, metal materials and organic high polymer materials; the grain size of the grinding aid powder is 100nm-10 mu m.
Preferably, the first solvent comprises a surfactant and a second solvent; wherein the surfactant comprises one or more of carboxylate, sulfonate, sulfate and phosphate; the second solvent comprises one or two of an inorganic salt water solvent and a pure water solvent; the mass ratio of the surfactant to the second solvent is (1-20): 1000.
Preferably, the step of stirring the composite powder mixed solution by using a periodically-changing rotation speed to obtain a graphene nano-sheet composite mother solution includes:
stirring the composite powder mixed solution by adopting a first rotating speed and a second rotating speed which are periodically alternated to obtain the graphene nano-sheet composite mother solution; wherein the first rotating speed is 500rpm-8000rpm, and the duration of the first rotating speed is 20min; the second rotating speed is 10000rpm-15000rpm, and the duration of the second rotating speed is 15min.
Preferably, the method further comprises:
and carrying out surface modification on the to-be-modified grinding aid powder to obtain the grinding aid powder with hydrophobic surface.
Preferably, the step of performing surface modification on the to-be-modified grinding assisting powder to obtain the grinding assisting powder with hydrophobic surface comprises the following steps:
and adopting one or two of a silane coupling agent and a titanate coupling agent to carry out surface modification on the to-be-modified grinding assisting powder so as to obtain the grinding assisting powder.
Preferably, the method further comprises: and dispersing the graphene nano sheet composite powder into a third solvent to obtain graphene nano sheet composite dispersion liquid.
Preferably, the step of dispersing the graphene nano sheet composite powder into a third solvent to obtain a graphene nano sheet composite dispersion liquid comprises the following steps:
and dispersing the graphene nano sheet composite powder into the third solvent through high-speed shearing dispersion or ultrasonic dispersion to obtain the graphene nano sheet composite dispersion liquid.
The graphene nano-sheet composite powder prepared by the preparation method according to any one of the above steps, comprising: graphene nanoplatelets and co-milling powders; wherein the mass ratio of the graphene nano-sheets to the grinding aid powder is (1-1.5): 2-5; the thickness of the graphene nano sheet is 0.96-20nm, and the transverse dimension is 100nm-10 mu m.
The application has the following advantages:
in the embodiment of the application, the graphite powder, the grinding aid powder and the first solvent are mixed to obtain a composite powder mixed solution; wherein the mass ratio of the graphite powder to the grinding aid powder to the first solvent is (1-1.5): (2-5): 1000; stirring the composite powder mixed solution by adopting a periodically-changed rotating speed to obtain graphene nano-sheet composite mother solution; the graphene nano sheet composite mother solution is filtered and dried to obtain graphene nano sheet composite powder, and pulse alternating shearing is adopted while grinding aid powder is introduced, so that the peeling of the graphene nano sheets can be effectively promoted, the graphene nano sheet composite powder has the characteristics of high efficiency, low cost and easiness in industrialization, and the prepared graphene nano sheet composite powder can be directly used for composite modification of organic resin, inorganic gel and other materials and has wide application prospect and value.
Drawings
In order to more clearly illustrate the technical solutions of the present application, the drawings that are needed in the description of the present application will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a step flowchart of a preparation method of graphene nanoplatelet composite powder according to an embodiment of the present application;
fig. 2 is a step flowchart of a preparation method of graphene nanoplatelet composite powder according to another embodiment of the present application;
fig. 3 is a step flowchart of a preparation method of a graphene nanoplatelet composite powder according to another embodiment of the present application;
fig. 4 is a scanning microscope image of a graphene nanoplatelet composite powder according to an embodiment of the present application;
fig. 5 is an optical microscope image of a graphene nanoplatelet composite powder according to an embodiment of the present application;
fig. 6 is an AFM (Atomic Force Microscopy, atomic force microscope) characterization diagram of a graphene nanoplatelet composite powder according to an embodiment of the present application.
Detailed Description
In order that the manner in which the above recited objects, features and advantages of the present application are obtained will become more readily apparent, a more particular description of the application briefly described above will be rendered by reference to the appended drawings. It will be apparent that the described embodiments are some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1, a preparation method of graphene nano-sheet composite powder according to an embodiment of the present application is shown, where the preparation method includes:
s110, mixing graphite powder, grinding aid powder and a first solvent to obtain a composite powder mixed solution; wherein the mass ratio of the graphite powder to the grinding aid powder to the first solvent is (1-1.5): (2-5): 1000;
s120, stirring the composite powder mixed solution by adopting a periodically-changed rotating speed to obtain graphene nano-sheet composite mother solution;
and S130, filtering and drying the graphene nano sheet composite mother solution to obtain graphene nano sheet composite powder.
In the embodiment of the application, the graphite powder, the grinding aid powder and the first solvent are mixed to obtain a composite powder mixed solution; wherein the mass ratio of the graphite powder to the grinding aid powder to the first solvent is (1-1.5): (2-5): 1000; stirring the composite powder mixed solution by adopting a periodically-changed rotating speed to obtain graphene nano-sheet composite mother solution; the graphene nano sheet composite mother solution is filtered and dried to obtain graphene nano sheet composite powder, and pulse alternating shearing is adopted while grinding aid powder is introduced, so that the peeling of the graphene nano sheets can be effectively promoted, the graphene nano sheet composite powder has the characteristics of high efficiency, low cost and easiness in industrialization, and the prepared graphene nano sheet composite powder can be directly used for composite modification of organic resin, inorganic gel and other materials and has wide application prospect and value.
Next, a method for preparing the graphene nanoplatelet composite powder in this exemplary embodiment will be further described.
As described in the step S110, the graphite powder, the grinding aid powder and the first solvent are mixed to obtain a composite powder mixed solution.
And stirring and mixing the graphite powder and the grinding aid powder in the first solvent according to a proper proportion. Specifically, the mass ratio of the graphite powder to the grinding aid powder to the first solvent is (1-1.5): (2-5): 1000.
The graphite powder material comprises one or more of natural crystalline flake graphite, expandable graphite, expanded graphite and sand-ground graphite. The graphite powder has simple components and is easy to obtain.
The material of the grinding aid powder can be one or more of inorganic nonmetallic materials, metal materials and organic high polymer materials according to the requirement, and is preferably inorganic nonmetallic materials or metal materials, wherein the inorganic nonmetallic materials can be silicon oxide, aluminum oxide, fly ash and glass, and the metal materials can be copper, iron, zinc and nickel. The grain size of the grinding aid powder is 100nm-10 mu m, and the grinding aid powder can be one or more of spheres, cubes and irregular blocks. As an example, the auxiliary powder includes one or more of silica microspheres, alumina microspheres, fly ash and glass microspheres. As another example, the auxiliary powder includes one or more of copper powder, iron powder, zinc powder, and nickel powder. In other examples, the surface hydrophobically modified materials may also be used to enhance the dispersibility of the powder in a nonpolar system.
The first solvent includes a surfactant and a second solvent; wherein the surfactant comprises one or more of carboxylate, sulfonate, sulfate and phosphate, preferably one or more of sodium lignin sulfonate, sodium citrate, potassium fatty acid and sodium alkylbenzenesulfonate; the second solvent comprises one or two of an inorganic salt water solvent and a pure water solvent; the mass ratio of the surfactant to the second solvent is (1-20): 1000. By adding the surfactant to the second solvent, penetration, wetting, emulsification, dispersion, solubilization, foaming, antistatic and lubricating properties of the first solvent can be improved. In addition, the first solvent takes the inorganic salt water solvent or the pure water solvent as a liquid phase medium, and has the characteristics of environmental protection, low cost and easy industrialization.
And (3) stirring the composite powder mixed solution by adopting a periodically-changed rotating speed to obtain the graphene nano-sheet composite mother solution, as shown in the step S120.
And the periodically-changing rotating speed is adopted to stir the composite powder mixed solution, so that periodically-changing shearing force can be generated, and the stripping of the graphene nano sheets is effectively promoted. Specifically, the composite powder mixed solution is stirred by adopting a first rotating speed and a second rotating speed which are periodically alternated to obtain the graphene nano-sheet composite mother solution; wherein the first rotating speed is 500rpm-8000rpm, and the duration of the first rotating speed is 20min; the second rotating speed is 10000rpm-15000rpm, and the duration of the second rotating speed is 15min. In practical application, the stirrer is sheared for 20min at 8000rpm and 15min at 12000rpm as one period, and two periods are needed.
And (2) filtering and drying the graphene nano sheet composite mother solution to obtain graphene nano sheet composite powder as described in the step S130.
And carrying out suction filtration on the graphene nano-sheet composite mother solution to separate solid and liquid solutions. And drying the solid subjected to suction filtration, so as to completely remove the moisture in the solid and obtain the graphene nano sheet composite powder.
Referring to fig. 2, in an embodiment of the present application, the preparation method further includes:
s100, carrying out surface modification on the to-be-modified grinding aid powder to obtain the grinding aid powder with hydrophobic surface.
The material of the to-be-modified grinding aid powder can be one or more of inorganic nonmetallic materials, metal materials and organic high polymer materials according to the requirement, and is preferably an inorganic nonmetallic material or a metal material, wherein the inorganic nonmetallic material can be silicon oxide, aluminum oxide, fly ash and glass, and the metal material can be copper, iron, zinc and nickel. The particle size of the to-be-modified grinding aid powder is 100nm-10 mu m, and the shape of the to-be-modified grinding aid powder can be one or more of spheres, cubes and irregular blocks. As an example, the to-be-modified grinding aid powder includes one or more of silica microspheres, alumina microspheres, fly ash and glass microspheres. As another example, the auxiliary powder to be modified includes one or more of copper powder, iron powder, zinc powder, and nickel powder.
Because the powder to be modified has higher specific surface area, the interaction force among the powder is large, aggregation is easy to occur, and the water and oil repellency is higher, and the powder is unfavorable for being dispersed in a nonpolar system, the surface active agent is adopted to carry out surface hydrophobic modification on the powder to be modified, and meanwhile, the strength, toughness, water resistance and the like of the powder to be modified are improved. Specifically, the surfactant comprises one or two of a silane coupling agent and a titanate coupling agent.
The surfactant can be represented by a formula of D-E, wherein a D group can be attached to the surface of the to-be-modified grinding aid powder, and an E group is a hydrophobic group. The D group can be attached to the surface of the powder to be modified by adsorption, ionic bond formation, covalent bond formation, or a combination thereof. The E group may be a non-polar group.
The silane coupling agent is an organic compound containing silicon atom, and can be represented by the general formula YSiX 3 Wherein X is an alkyl or alkoxy group, and Y is an alkyl, oxyalkyl or amino group, phenyl group, or the like. The silane coupling agent has the function of enhancing the affinity between the organic matters and the inorganic compounds, and can strengthen and improve the physical and chemical properties of the composite material, such as strength, toughness, electrical property, water resistance and corrosion resistance. Specifically, the silane coupling agent includes, but is not limited to, the following species: alkyltrialkoxysilanes, (meth) acryloxyalkyl trialkoxysilanes, (meth) acryloxyalkyl dialkoxysilanes, mercaptoalkyl trialkoxysilanesOxysilane, gamma-methacryloxypropyl trimethoxysilane, aryl trialkoxysilane, vinyl silane, 3-glycidylpropyl trialkoxysilane, polyether silane, gamma-aminopropyl triethoxysilane, gamma-glycidyloxypropyl trimethoxysilane, gamma- (methacryloxy) propyl trimethoxysilane, gamma-mercaptopropyl trimethoxysilane, gamma-aminoethylaminopropyl trimethoxysilane, bis- [ propyl triethoxysilane]N- (β -aminoethyl) - γ - (aminopropyl) -methyldimethoxysilane, N- (β -aminoethyl) - γ - (aminopropyl) -trimethoxysilane, γ -aminoethyl-aminopropyl trimethoxysilane, hexadecyltrimethoxysilane.
The titanate coupling agent mainly comprises four types: monoalkoxy type, pyrophosphoric acid type, decocting type, and coordination type. The titanate coupling agent can be represented by the general formula ROO (4-n) Ti(OX-R’Y) n (n=2, 3); wherein RO-is a hydrolyzable short chain alkoxy group which can react with hydroxyl groups on the surface of inorganic matters, thereby achieving the aim of chemical coupling; OX-can be carboxyl, alkoxy, sulfonic acid group, phosphorus group and the like, and the groups determine the special functions of the titanate, for example, the sulfonic acid group endows the organic matter with certain thixotropic property, the pyrophosphoryloxy has the properties of flame retardance, rust prevention and adhesion enhancement, and the phosphityloxy can provide the properties of oxygen resistance, flame retardance and the like, so that the titanate can have the coupling and other special properties through the selection of the OX-; r' -is long carbon bond alkane, is softer, can be bent and intertwined with an organic polymer, improves the compatibility of organic matters and inorganic matters, and improves the impact strength of the material: y is hydroxyl, amino, epoxy or a double bond-containing group, etc., which are attached to the end of the titanate molecule and can be chemically reacted with an organic substance to be bonded together. The titanate coupling agent has great flexibility and multifunction, and can be used as a coupling agent, a dispersing agent, a wetting agent, an adhesive, a crosslinking agent, a catalyst and the like, and can also have the functions of rust prevention, oxidation resistance, flame retardance and the like.
Referring to fig. 3, in an embodiment of the present application, the preparation method further includes:
and S140, dispersing the graphene nano sheet composite powder into a third solvent to obtain graphene nano sheet composite dispersion liquid.
The third solvent may be selected according to an application environment of the graphene nano-sheet composite powder, for example, when the third solvent is used for modifying epoxy resin, the graphene nano-sheet composite powder may be dispersed in an ethanol solution, and a high-speed shearing dispersion or ultrasonic dispersion may be adopted for the dispersion mode.
The following are specific embodiments of the present application:
example 1
Mixing KH570 silane coupling agent, water and ethanol according to the volume ratio of 1:1:8 to obtain silane coupling agent diluent; adding a proper amount of acetic acid into the silane coupling agent diluent to adjust the pH to be 4, and hydrolyzing for 2 hours; adding 10mL of the hydrolysate into 100mL of ethanol, adding 15g of silicon dioxide microsphere powder, reacting at 80 ℃ for 2 hours, and then performing suction filtration and drying to obtain modified silicon dioxide microsphere powder; adding 1g of graphite powder and 2g of modified silicon dioxide microsphere powder into 1000mL of deionized water, performing two-period dispersion treatment by adopting a high-speed shearing emulsifying machine with 12000rpm/15min and 8000rpm/20min as one shearing and peeling period, and performing suction filtration and vacuum drying to obtain graphene nano sheet composite powder; and ultrasonically dispersing the graphene nano sheet composite powder into ethanol to form graphene nano sheet composite dispersion liquid.
Example two
Mixing trimethoxy phenyl silane coupling agent, water and ethanol according to the volume ratio of 1:1:8 to obtain silane coupling agent diluent; adding a proper amount of acetic acid into the silane coupling agent diluent to adjust the pH to be 4, and hydrolyzing for 2 hours; adding 10mL of the hydrolysate into 100mL of ethanol, adding 15g of silicon dioxide microsphere powder, reacting at 80 ℃ for 2 hours, and then performing suction filtration and drying to obtain modified silicon dioxide microsphere powder; adding 1g of graphite powder and 2g of modified silicon dioxide microsphere powder into 1000mL of deionized water, performing two-period dispersion treatment by adopting a high-speed shearing emulsifying machine with 12000rpm/15min and 8000rpm/20min as one shearing and peeling period, and performing suction filtration and vacuum drying to obtain graphene nano sheet composite powder; and ultrasonically dispersing the graphene nano sheet composite powder into ethanol to form graphene nano sheet composite dispersion liquid.
Example III
5g of copper powder and 1g of graphite powder are weighed and added into 1000mL of deionized water, dispersion treatment is carried out for two periods by taking 12000rpm/15min and 8000rpm/20min as a shearing and peeling period, and then the graphene nano-sheet composite powder is obtained through suction filtration and vacuum drying.
Referring to fig. 4-6, a graphene nano-sheet composite powder prepared according to the preparation method according to any one of the foregoing embodiments is shown in an embodiment of the present disclosure, where the graphene nano-sheet composite powder includes:
graphene nanoplatelets and co-milling powders; wherein the mass ratio of the graphene nano-sheets to the grinding aid powder is (1-1.5): 2-5; the thickness of the graphene nano sheet is 0.96-20nm, and the transverse dimension is 100nm-10 mu m.
The graphene nano-sheet composite powder can be directly used for composite modification of organic resin, inorganic gel and other materials, and has wide application prospect and value.
While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the embodiments of the application.
Finally, it is further noted that relational terms such as first and second, and the like are 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. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal 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 terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or terminal device comprising the element.
The preparation method and the product of the graphene nano-sheet composite powder provided by the application are described in detail, and specific examples are applied to illustrate the principle and the implementation mode of the application, and the description of the examples is only used for helping to understand the method and the core idea of the application; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.
Claims (8)
1. The preparation method of the graphene nano sheet composite powder is characterized by comprising the following steps of:
mixing graphite powder, grinding aid powder and a first solvent to obtain a composite powder mixed solution; wherein the mass ratio of the graphite powder to the grinding aid powder to the first solvent is (1-1.5): (2-5): 1000; the grinding aid powder is one or more of inorganic nonmetallic materials, metal materials and organic high polymer materials after surface hydrophobic modification;
stirring the composite powder mixed solution by adopting a periodically-changed rotating speed to obtain graphene nano-sheet composite mother solution; specifically, stirring the composite powder mixed solution by adopting a high-speed shearing emulsifying machine at a first rotating speed and a second rotating speed which are periodically alternated to obtain the graphene nano-sheet composite mother solution; wherein the first rotating speed is 500rpm-8000rpm, and the duration of the first rotating speed is 20min; the second rotating speed is 10000rpm-15000rpm, and the duration time of the second rotating speed is 15min;
and filtering and drying the graphene nano sheet composite mother solution to obtain graphene nano sheet composite powder.
2. The method according to claim 1, wherein the graphite powder material comprises one or more of natural crystalline flake graphite, expandable graphite, expanded graphite and sanded graphite.
3. The method according to claim 1, wherein the particle size of the grinding aid powder is 100nm to 10 μm.
4. The method of preparation of claim 1, wherein the first solvent comprises a surfactant and a second solvent; wherein the surfactant comprises one or more of carboxylate, sulfonate, sulfate and phosphate; the second solvent comprises one or two of an inorganic salt water solvent and a pure water solvent; the mass ratio of the surfactant to the second solvent is (1-20): 1000.
5. The method of manufacturing according to claim 1, further comprising:
and carrying out surface modification on the to-be-modified grinding aid powder to obtain the grinding aid powder with hydrophobic surface.
6. The method according to claim 5, wherein the step of surface-modifying the powder to be modified to obtain the powder having a hydrophobic surface comprises:
and adopting one or two of a silane coupling agent and a titanate coupling agent to carry out surface modification on the to-be-modified grinding assisting powder so as to obtain the grinding assisting powder.
7. The method of manufacturing according to claim 1, further comprising: and dispersing the graphene nano sheet composite powder into a third solvent to obtain graphene nano sheet composite dispersion liquid.
8. The method of preparing according to claim 7, wherein the step of dispersing the graphene nanoplatelet composite powder into a third solvent to obtain a graphene nanoplatelet composite dispersion liquid comprises:
and dispersing the graphene nano sheet composite powder into the third solvent through high-speed shearing dispersion or ultrasonic dispersion to obtain the graphene nano sheet composite dispersion liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210917566.5A CN115180618B (en) | 2022-08-01 | 2022-08-01 | Preparation method of graphene nano-sheet composite powder and product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210917566.5A CN115180618B (en) | 2022-08-01 | 2022-08-01 | Preparation method of graphene nano-sheet composite powder and product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115180618A CN115180618A (en) | 2022-10-14 |
| CN115180618B true CN115180618B (en) | 2023-10-20 |
Family
ID=83521494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210917566.5A Active CN115180618B (en) | 2022-08-01 | 2022-08-01 | Preparation method of graphene nano-sheet composite powder and product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115180618B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101857221A (en) * | 2010-05-21 | 2010-10-13 | 哈尔滨工业大学 | Method for preparing graphene compounds and graphene oxide compounds with high efficiency |
| CN106898761A (en) * | 2017-05-02 | 2017-06-27 | 卢国骥 | The electrode sheet material preparation technology and Graphene nickel-zinc cell of Graphene nickel-zinc cell |
| CN112499622A (en) * | 2020-12-17 | 2021-03-16 | 无锡菲勒高性能材料有限公司 | Silicon dioxide and graphene composite powder material and preparation method and application thereof |
-
2022
- 2022-08-01 CN CN202210917566.5A patent/CN115180618B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101857221A (en) * | 2010-05-21 | 2010-10-13 | 哈尔滨工业大学 | Method for preparing graphene compounds and graphene oxide compounds with high efficiency |
| CN106898761A (en) * | 2017-05-02 | 2017-06-27 | 卢国骥 | The electrode sheet material preparation technology and Graphene nickel-zinc cell of Graphene nickel-zinc cell |
| CN112499622A (en) * | 2020-12-17 | 2021-03-16 | 无锡菲勒高性能材料有限公司 | Silicon dioxide and graphene composite powder material and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115180618A (en) | 2022-10-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102020877B (en) | Rear-earth surface-modified hollow glass microsphere and preparation method thereof | |
| CN104694001B (en) | A kind of preparation method of super-hydrophobic superparamagnetic silicone resin composite material coating | |
| CN110003774A (en) | A kind of water-based anticorrosive paint and preparation method thereof based on carbon nano-composite material | |
| CN101514263A (en) | Modified white carbon black and preparation method thereof | |
| CN101254924A (en) | Silicane coupling agent surface grafted modified clay as well as preparation method and use thereof | |
| JP2010065267A (en) | Method for producing aqueous solvent-dispersible silver fine powder | |
| JP5847225B2 (en) | Dielectric film, manufacturing method thereof, and transducer using the same | |
| Fazli-Shokouhi et al. | Epoxy-matrix polyaniline/p-phenylenediamine-functionalised graphene oxide coatings with dual anti-corrosion and anti-fouling performance | |
| CN104603049B (en) | The manufacture method of water-resistant aluminum nitride powder | |
| CN113308139B (en) | Two-dimensional nano hybrid composite anticorrosive coating filler and preparation method and application thereof | |
| JP2603291B2 (en) | Fine powder of silicone resin containing quaternary ammonium group | |
| CN104387911A (en) | Graphene-based nanometer zero-valent iron coating and preparation method thereof | |
| CN108795283A (en) | A kind of preparation method and application of free-floride room temperature curing graphene-organic siliconresin super hydrophobic coating | |
| CN109943169A (en) | A kind of Nano-composite marine anticorrosive paint and preparation method thereof | |
| CN115180618B (en) | Preparation method of graphene nano-sheet composite powder and product | |
| CN104854115B (en) | Reactive ion liquid and use its ion immobilization metal oxide particle, ion immobilization elastomer and converter | |
| CN100577563C (en) | Method for preparing octadecyl amine/kaolin inserted layer composition | |
| CN103198886B (en) | A kind of preparation method of flexible substrates surface transparent conductive thin film | |
| CN104426416B (en) | The friction generator of application semiconductor composite | |
| CN112047332A (en) | Preparation method and application of Janus graphene oxide | |
| CN104479494A (en) | Graphene-based nanometre zero-valent zinc coating and preparation method thereof | |
| TWI759635B (en) | Silver powder and manufacturing method thereof | |
| CN106582532A (en) | Thiol-modified graphene/carbon nanotube composite material and preparation method therefor | |
| CN109880488A (en) | A kind of Diamines salicylide Schiff 's base is grapheme modified or graphene oxide metal anti-corrosive paint | |
| CN115197540B (en) | Preparation method of modified epoxy composite material suitable for marine environment and product |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |