Preparation method of multifunctional graphene 3D printing wire

Abstract

The invention discloses a preparation method of a multifunctional graphene 3D printing wire rod, which comprises the following steps: S1, preparation of a graphene material: preparing a high-quality graphene material by adopting methods such as a chemical vapor deposition method, a mechanical stripping method or a liquid phase stripping method, and then embedding or fusing the graphene material into a 3D printing material by a physical or chemical method to obtain the graphene material; s2, enhancement of the 3D printing material: in production of 3D printing wires, related materials are added, so that the functions of enhancement, toughening, antistatic property, luminescence, degradability and the like of the wires are realized. The strength, wear resistance and impact resistance of the 3D printing material are improved; the heat resistance, flame retardance, conductivity, cold resistance, insulation and other properties of the 3D printing material are improved, meanwhile, the functional diversity of the 3D printing material is enhanced, the preparation process of the 3D printing material is optimized, the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of graphene material preparation, and in particular to a method for preparing a multifunctional graphene 3D printing wire. Background Art

[0002] 3D printing technology is a new type of manufacturing technology that generates objects of various shapes directly based on computer graphics data by adding materials layer by layer. This technology has the advantages of intelligence, high efficiency and low cost, and is known as the carrier of the third industrial revolution. With the development of science and technology, 3D printing technology has made important progress in the fields of automobiles, aerospace, consumer electronics, medical care, industrial design, engineering construction, etc., and its development prospects are very broad. Graphene is a kind of carbon atom in the form of sp 2 A new material with a single-layer two-dimensional honeycomb lattice structure formed by hybrid orbitals. It has extremely high electrical conductivity, thermal conductivity, strength and flexibility, and is considered to be an important material in the future high-tech field. Composite materials refer to materials with new properties that are composed of two or more materials of different properties through physical or chemical methods on a macro scale. In the field of 3D printing, composite materials can achieve a wider range of functions and applications.

[0003] Solutions of existing technologies: Existing 3D printing materials mainly include PLA, PETE, PA and other materials. These materials can achieve functions such as enhancement, toughening, antistatic, luminescence and biodegradability by adding related materials.

[0004] Problems with existing technologies: Although existing 3D printing materials have been enhanced in function, there are still some problems and limitations. First, the strength, wear resistance, and impact resistance of existing 3D printing materials need to be improved. Second, the performance of existing 3D printing materials in terms of heat resistance, flame retardancy, conductivity, cold resistance, and insulation needs to be improved. Finally, there is still a lot of room for development in the functional diversity of existing 3D printing materials. These problems and limitations have limited the application and development of 3D printing technology to a certain extent. Summary of the invention

[0005] The purpose of the present invention is to provide a method for preparing a multifunctional graphene 3D printing wire, which not only improves the strength, wear resistance and impact resistance of 3D printing materials to meet higher application requirements; but also improves the heat resistance, flame retardancy, conductivity, cold resistance, insulation and other properties of 3D printing materials to expand the application field of 3D printing technology, and at the same time enhances the functional diversity of 3D printing materials. By embedding and integrating graphene into 3D printing materials, new 3D printing materials with more functions are developed, such as high wear resistance, impact resistance, aging resistance, heat resistance, flame retardancy, conductivity, cold resistance, insulation, etc., further broadening the application field of 3D printing, and optimizing the preparation process of 3D printing materials, improving production efficiency, reducing production costs, and realizing intelligent and green production of 3D printing technology, thereby promoting important progress in 3D printing technology in the fields of automobiles, aerospace, consumer electronics, medical care, industrial design, engineering construction, etc., and promoting the industrialization, application and development of 3D printing technology.

[0006] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0007] A method for preparing a multifunctional graphene 3D printing wire comprises the following steps:

[0008] S1. Preparation of graphene materials: high-quality graphene materials are prepared by chemical vapor deposition, mechanical exfoliation or liquid phase exfoliation, and then the graphene materials are embedded or integrated into 3D printing materials by physical or chemical methods, thereby improving the strength, wear resistance and impact resistance of 3D printing materials;

[0009] S2. Enhancement of 3D printing materials: In the production of 3D printing wires, by adding relevant materials, the wires can be enhanced, toughened, antistatic, luminous, degradable and other functions can be achieved. At the same time, graphene materials can be embedded or integrated into 3D printing materials to further enhance the strength, wear resistance and impact resistance of 3D printing materials.

[0010] S3. Improve the performance of 3D printing materials: Improve the heat resistance, flame retardancy, conductivity, cold resistance, insulation and other properties of 3D printing materials through physical or chemical methods. At the same time, embed or integrate graphene materials into 3D printing materials to further improve the heat resistance, flame retardancy, conductivity, cold resistance, insulation and other properties of 3D printing materials;

[0011] S4. Optimization of the preparation process of 3D printing materials: By optimizing the preparation process of 3D printing materials, we can improve production efficiency, reduce production costs, and realize the intelligent and green production of 3D printing technology. At the same time, graphene materials are embedded or integrated into 3D printing materials to further optimize the preparation process of 3D printing materials;

[0012] S5. Application and promotion of 3D printing technology: Promote the important progress of 3D printing technology in the fields of automobiles, aerospace, consumer electronics, medical care, industrial design, engineering construction, etc., and promote the industrial application and development of 3D printing technology. At the same time, embed or integrate graphene materials into 3D printing materials to further broaden the application field of 3D printing.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. The present invention not only improves the strength, wear resistance and impact resistance of 3D printing materials to meet higher application requirements; but also improves the heat resistance, flame retardancy, conductivity, cold resistance, insulation and other properties of 3D printing materials to expand the application field of 3D printing technology, and at the same time enhances the functional diversity of 3D printing materials. By embedding and integrating graphene into 3D printing materials, new 3D printing materials with more functions are developed, such as high wear resistance, impact resistance, aging resistance, heat resistance, flame retardancy, conductivity, cold resistance, insulation, etc., further broadening the application field of 3D printing, and optimizing the preparation process of 3D printing materials, improving production efficiency, reducing production costs, and realizing intelligent and green production of 3D printing technology, thereby promoting important progress in 3D printing technology in the fields of automobiles, aerospace, consumer electronics, medical and health care, industrial design, engineering construction, etc., and promoting the industrialization, application and development of 3D printing technology;

[0015] 2. The present invention embeds and integrates graphene into 3D printing materials to develop new 3D printing materials with more functions, such as high wear resistance, impact resistance, aging resistance, heat resistance, flame retardancy, conductivity, cold resistance, insulation, etc. The introduction of these new materials greatly improves the strength, wear resistance and impact resistance of 3D printing materials, and at the same time improves its performance in heat resistance, flame retardancy, conductivity, cold resistance, insulation, etc. This breakthrough effectively solves the problems and limitations of existing 3D printing materials in terms of strength, wear resistance, impact resistance, etc., and further broadens the application field of 3D printing;

[0016] 3. The present invention, the 3D printing wire of the present invention, by adding relevant materials, realizes the functions of the wire such as reinforcement, toughening, antistatic, luminescence, and degradability. This multifunctional 3D printing wire provides more possibilities for the application of 3D printing technology, making 3D printing technology make important progress in the fields of automobiles, aerospace, consumer electronics, medical care, industrial design, engineering construction, etc., and has a very broad development prospect;

[0017] 4. The present invention, the graphene material preparation technology of the present invention, provides technical support for the functional diversification of 3D printing materials. Through physical or chemical methods, composite materials with new properties are macroscopically composed, which provides a lot of room for development in the functional diversity of 3D printing materials. The introduction of this technology has effectively promoted the continuous progress and development of 3D printing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 The present invention is a flow chart of the method for preparing the multifunctional graphene 3D printing wire. DETAILED DESCRIPTION

[0020] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0021] Please refer to Figure 1 As shown, an embodiment of the present invention provides a method for preparing a multifunctional graphene 3D printing wire, comprising the following steps:

[0022] S1. Preparation of graphene material: high-quality graphene material is grown on copper foil by chemical vapor deposition method. The specific steps are as follows: the copper foil is placed in a tube furnace, heated to 1000°C in an atmosphere of hydrogen and argon, and then methane gas is introduced, the reaction temperature is maintained at 1000°C, the reaction time is 30 minutes, and finally cooled in ice water to obtain graphene material;

[0023] S2. Enhancement of 3D printing materials: In the production of 3D printing filaments, by adding relevant materials, the filaments can be enhanced, toughened, antistatic, luminescent, degradable and other functions can be achieved. The specific steps are as follows: PLA material is mixed with toughening agent, antistatic agent, luminescent agent and degradable agent, added to the extruder, and after extrusion, wire drawing and other processes, the enhanced, toughened, antistatic, luminescent and degradable 3D printing filament is obtained;

[0024] S3, embedding graphene material into 3D printing material: embedding the graphene material prepared in step 1 into the 3D printing wire obtained in step 2 by physical method, the specific steps are as follows: mixing the graphene material with the 3D printing wire, adding them into a ball mill, the ball milling time is 30 minutes, the ball milling speed is 300 rpm, and a mixture of graphene embedded in the 3D printing wire is obtained;

[0025] S4. Performance improvement of 3D printing materials: Improve the heat resistance, flame retardancy, conductivity, cold resistance, insulation and other properties of 3D printing materials through physical methods. The specific steps are as follows: put the mixture of graphene embedded in 3D printing wire obtained in step 3 into a vacuum drying oven, dry it at a temperature of 100°C for 24 hours, then put it into a tube furnace, heat it to 200°C under a nitrogen atmosphere, keep it warm for 2 hours, and finally cool it in ice water to obtain graphene embedded in 3D printing wire with improved performance;

[0026] S5. Optimization of the preparation process of 3D printing materials: By optimizing the preparation process of 3D printing materials, the production efficiency is improved, the production cost is reduced, and the intelligent and green production of 3D printing technology is realized. The specific steps are as follows: the mixture of graphene embedded in 3D printing wire with improved performance obtained in step 4 is put into an extruder, and after extrusion, wire drawing and other process processes, the optimized graphene embedded in 3D printing wire is obtained;

[0027] S6. Application and promotion of 3D printing technology: Promote important progress in 3D printing technology in the fields of automobiles, aerospace, consumer electronics, medical care, industrial design, engineering construction, etc., and promote the industrial application and development of 3D printing technology. The specific steps are as follows: Embed optimized graphene into 3D printing wires and apply them to the manufacture of automotive parts. Through 3D printing technology, the production cycle is greatly shortened, production efficiency is improved, production costs are reduced, and the high-precision and complex structure requirements of automotive parts are met.

[0028] By adopting the above technical solutions, not only the strength, wear resistance and impact resistance of 3D printing materials are improved to meet higher application requirements; but also the heat resistance, flame retardancy, conductivity, cold resistance, insulation and other properties of 3D printing materials are improved to expand the application field of 3D printing technology, and at the same time enhance the functional diversity of 3D printing materials. By embedding and integrating graphene into 3D printing materials, new 3D printing materials with more functions are developed, such as high wear resistance, impact resistance, aging resistance, heat resistance, flame retardancy, conductivity, cold resistance, insulation, etc., which further broadens the application field of 3D printing, optimizes the preparation process of 3D printing materials, improves production efficiency, reduces production costs, and realizes the intelligent and green production of 3D printing technology, thereby promoting important progress in 3D printing technology in the fields of automobiles, aerospace, consumer electronics, medical care, industrial design, engineering construction, etc., and promoting the industrialization, application and development of 3D printing technology.

[0029] In the present invention: Due to the advanced nature of this technical solution, it can be widely used in the fields of graphene material preparation technology, 3D printing technology and composite materials. In the field of graphene material preparation technology, this technical solution embeds and integrates graphene into 3D printing materials to develop new 3D printing materials with more functions, such as high wear resistance, impact resistance, aging resistance, heat resistance, flame retardant, conductive, cold resistance, insulation, etc. This will greatly promote the application and development of graphene materials and provide more possibilities for the preparation technology of graphene materials. In the field of 3D printing technology, the multifunctional 3D printing wire of this technical solution further broadens the application field of 3D printing. Traditional 3D printing materials still need to be improved in terms of strength, wear resistance, impact resistance, etc., and in this technical solution, by embedding and integrating graphene into 3D printing materials, these properties have been significantly improved. In addition, the multifunctional 3D printing wire of this technical solution also has excellent performance in heat resistance, flame retardant, conductive, cold resistance, insulation, etc., which will greatly promote the application and development of 3D printing technology in more fields. In the field of composite materials, this technical solution embeds and integrates graphene into 3D printing materials, achieving a breakthrough in the function and application of composite materials. Composite materials are composed of two or more materials with different properties, which are macroscopically composed of materials with new properties through physical or chemical methods. In this technical solution, by embedding and integrating graphene into 3D printing materials, composite materials can achieve a wider range of functions and applications, which will greatly promote the application and development of composite materials in more fields. In general, the application prospects of this technical solution are very broad and the market demand is huge. With the development of science and technology and the progress of society, the application of 3D printing technology and composite materials in various fields will become more and more extensive, and the multifunctional 3D printing wire of this technical solution will play an important role in it.

[0030] The above description shows and describes several preferred embodiments of the present invention, but as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. Changes and variations made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A method for preparing a multifunctional graphene 3D printing wire, characterized in that: The steps include: S1. Preparation of graphene materials: using chemical vapor deposition to grow high-quality graphene materials on copper foil; S2. Enhancement of 3D printing materials: In the production of 3D printing wires, by adding relevant materials, the wires can be enhanced, toughened, antistatic, luminous, degradable and other functions; S3, embedding graphene material into 3D printing material: embedding the graphene material prepared in step 1 into the 3D printing wire obtained in step 2 by physical method; S4. Improvement of 3D printing material performance: Improve the heat resistance, flame retardancy, conductivity, cold resistance, insulation and other properties of 3D printing materials through physical methods; S5. Optimization of the preparation process of 3D printing materials: By optimizing the preparation process of 3D printing materials, we can improve production efficiency, reduce production costs, and realize the intelligent and green production of 3D printing technology; S6. Application and promotion of 3D printing technology: Promote important progress in 3D printing technology in the fields of automobiles, aerospace, consumer electronics, medical care, industrial design, engineering construction, etc., and promote the industrial application and development of 3D printing technology.

2. The method for preparing a multifunctional graphene 3D printing wire according to claim 1, characterized in that: The specific steps in S1 are as follows: placing the copper foil in a tube furnace, heating it in an atmosphere of hydrogen and argon, then introducing methane gas, and cooling it in ice water after the reaction is complete to obtain a graphene material.

3. The method for preparing a multifunctional graphene 3D printing wire according to claim 2, characterized in that: The heating temperature of the tube furnace is controlled at 900-1100° C., the continuous heating temperature is maintained at 950-1050° C., and the reaction time is 25-35 minutes.

4. The method for preparing a multifunctional graphene 3D printing wire according to claim 3, characterized in that: The specific steps in S2 are as follows: PLA material is mixed with a toughening agent, an antistatic agent, a luminescent agent and a degradable agent, and added into an extruder, and after extrusion, wire drawing and other processes, a reinforced, toughened, antistatic, luminescent and degradable 3D printing wire is obtained.

5. The method for preparing a multifunctional graphene 3D printing wire according to claim 4, characterized in that: The specific steps in S3 are as follows: mixing the graphene material with the 3D printing wire, adding the mixture into a ball mill, and obtaining a mixture of graphene embedded in the 3D printing wire after ball milling.

6. The method for preparing a multifunctional graphene 3D printing wire according to claim 5, characterized in that: The ball milling time is 25 to 35 minutes, and the ball milling speed is controlled at 250 to 350 r / min.

7. The method for preparing a multifunctional graphene 3D printing wire according to claim 6, characterized in that: The specific steps in S4 are as follows: placing the mixture of graphene embedded in 3D printing wire obtained in step 3 into a vacuum drying oven for drying, then placing it into a tubular furnace, heating it under a nitrogen atmosphere, and finally cooling it in ice water to obtain a graphene embedded in 3D printing wire with improved performance.

8. The method for preparing a multifunctional graphene 3D printing wire according to claim 7, characterized in that: The temperature of the vacuum drying oven is 90-100° C., the drying time is controlled at 22-26 hours, the temperature of the tubular furnace is controlled at 180-220° C., and the insulation time is 1.5-2.5 hours.

9. The method for preparing a multifunctional graphene 3D printing wire according to claim 8, characterized in that: The specific steps in S5 are as follows: putting the mixture of graphene embedded 3D printing wire with improved performance obtained in step 4 into an extruder, and obtaining optimized graphene embedded 3D printing wire through processes such as extrusion and wire drawing.

10. The method for preparing a multifunctional graphene 3D printing wire according to claim 9, characterized in that: The specific steps in S6 are as follows: the optimized graphene is embedded in the 3D printing wire and applied to the manufacture of automotive parts. Through the 3D printing technology, the production cycle is greatly shortened, the production efficiency is improved, the production cost is reduced, and the requirements of high precision and complex structure of automotive parts are met.

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