Graphene rubber foamed particles and a preparation method thereof

Abstract

A graphene rubber foaming glue particle and a preparation method thereof, the particle crushing and mixing device comprises a rack, a crushing and mixing box is arranged at the middle of the upper end of the rack, a discharge port is arranged at the bottom of the inner side of the rack and connected with the bottom end of the crushing and mixing box, a conveying belt is horizontally arranged at the left part of the upper end of the rack and embedded in the left side of the crushing and mixing box, a control panel is arranged at the front end of the rack and electrically connected with the crushing and mixing box, a heating seat is arranged in the middle of the conveying belt, a supporting rod is arranged at the rear side of the rack, a cooling fan is arranged at the upper end of the supporting rod, the graphene rubber foaming material is first made into a block, the elastic rubber sheet is fused in the granulation process, and finally the embedding and mixing are carried out, so that the elasticity of the graphene rubber foaming glue particle is effectively improved, and the overall form of the graphene rubber foaming glue particle is not damaged.

Description

Technical Field

[0001] This invention relates to graphene rubber foam granules and their preparation method, belonging to the field of graphene rubber foam granules. Background Technology

[0002] Graphene is a two-dimensional carbon nanomaterial composed of carbon atoms arranged in a hexagonal honeycomb lattice with sp2 hybrid orbitals. Graphene possesses excellent optical, electrical, and mechanical properties, and holds significant promise for applications in materials science, micro / nano fabrication, energy, biomedicine, and drug delivery, making it considered a revolutionary material for the future. Common methods for producing graphene powder include mechanical exfoliation, redox methods, and SiC epitaxial growth, while thin film production utilizes chemical vapor deposition (CVD). Existing graphene rubber foam granules used in shoe soles often incorporate elastic materials during manufacturing to enhance elasticity. However, when combined with other materials, the overall elasticity of the graphene rubber foam granules is limited, making it difficult to achieve the desired elasticity. Summary of the Invention

[0003] To address the shortcomings of existing technologies, the present invention aims to provide a graphene rubber foam granule and its preparation method, thereby solving the problem that existing graphene rubber foam granules used in shoe soles, in order to improve elasticity, add elastic materials during the preparation process. However, after being combined with other materials, the overall elasticity of the graphene rubber foam granule is limited, making it difficult to achieve the expected elasticity standard.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a method for preparing graphene rubber foam granules. The method employs a particle crushing and mixing device for granulation. The particle crushing and mixing device includes a frame, a crushing and mixing chamber located at the middle of the upper end of the frame, and a discharge port connected to the bottom of the crushing and mixing chamber located on the inner side of the bottom of the frame. A conveyor belt is horizontally positioned on the left side of the upper end of the frame, with its right end embedded in the left side of the crushing and mixing chamber. A control panel electrically connected to the crushing and mixing chamber is located at the front end of the frame. A heating seat is located in the middle of the conveyor belt, and a support rod is located at the rear of the frame. The end is equipped with a cooling fan. The crushing and mixing box includes a box body and a crushing and granulating drum. The crushing and granulating drum is rotatably located inside the top of the box body. The top of the box body is equipped with a crushing action plate that meshes with the crushing and granulating drum. A main motor that drives the crushing and granulating drum to rotate is located on one side of the box body. A discharge channel is located at the bottom of the box body. A film inlet is located on the left side of the discharge channel. A guide plate that contacts the conveyor belt is inclined at the bottom of the outer wall of the film inlet. A discharge cylinder is located at the bottom of the discharge channel. A mixing roller is rotatably located inside the discharge cylinder. A servo motor that drives the mixing roller to rotate is located in the interlayer of the box body. A screen plate is located on the bottom surface of the discharge cylinder.

[0005] A method for preparing graphene rubber foam particles using a particle crushing and mixing device includes the following steps: Step S1, introducing block-shaped graphene rubber foam blocks into a crushing and mixing box;

[0006] Step S2: Place the elastic film on the conveyor belt;

[0007] In step S3, the graphene rubber foam block is crushed into granules by the rotation of the crushing and granulation drum and the crushing plate, and then enters the discharge channel.

[0008] Step S4: The conveyor belt feeds the elastic sheet into the sheet inlet. During the feeding process, it passes through the heating seat, which outputs heat to melt the upper surface of the elastic sheet and effectively mix and embed it into the surface of the graphene rubber foam particles.

[0009] In step S5, the elastic sheet enters the discharge channel through the sheet inlet and mixes with the graphene rubber foam particles, and falls into the discharge cylinder together. The mixing roller in the discharge cylinder is driven to rotate by a servo motor. The mixing roller crushes the elastic sheet. As the cooling fan outputs air force, the elastic particles and graphene rubber foam particles are cooled and combined together to form buffered graphene rubber foam particles.

[0010] Further, the graphene rubber foam block is formulated according to the following weight ratio: 50-60 parts of ethylene-vinyl acetate copolymer, 23-32 parts of liquid polyisoprene rubber, 3-12 parts of methyl vinyl phenyl silicone rubber, 10-13 parts of graphene, 6-10 parts of EVA masterbatch, 8-9.5 parts of aluminum silicate fiber tube, 2-3 parts of foaming agent, 2-3 parts of micropore regulator, 5-8 parts of antioxidant, 1-2 parts of crosslinking agent, 3-4 parts of zinc stearate, and 3-6 parts of resin adhesive.

[0011] Furthermore, the elastic film is made of TPU material.

[0012] Furthermore, the discharge cylinder and the housing are an integrated structure.

[0013] Furthermore, the inner wall of the discharge cylinder is provided with grinding particles that cooperate with the mixing roller.

[0014] The beneficial effects of this invention are: by first making the graphene rubber foam material into blocks, incorporating heated elastic sheets during the granulation process, and finally embedding and mixing them, the elasticity of the graphene rubber foam particles is effectively improved without destroying the overall shape of the graphene rubber foam particles. Attached Figure Description

[0015] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of a particle crushing and mixing device;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure connecting the crushing and mixing box and the conveyor belt. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0019] Please see Figure 1 , Figure 2 This invention provides a technical solution for graphene rubber foam granules and its preparation method: the preparation method of graphene rubber foam granules uses a particle crushing and mixing device for granulation. The particle crushing and mixing device includes a frame 1, a crushing and mixing box 2 is provided in the middle of the upper end of the frame 1, a discharge port 3 connected to the bottom end of the crushing and mixing box 2 is provided on the inner side of the bottom of the frame 1, a conveyor belt 4 is horizontally provided on the left side of the upper end of the frame 1, the right end of the conveyor belt 4 is embedded in the left side of the crushing and mixing box 2, a control panel 5 electrically connected to the crushing and mixing box 2 is provided at the front end of the frame 1, a heating seat 6 is provided in the middle of the conveyor belt 4, a support rod 7 is provided on the rear side of the frame 1, and a cooling fan 8 is provided at the upper end of the support rod 7. The crushing and mixing box 2 includes a box body 201 and a crushing and granulation roller 202. A crushing and granulating roller 202 is rotatably mounted inside the top of a housing 201. A crushing action plate 203 that meshes with the crushing and granulating roller 202 is provided inside the top of the housing 201. A main motor 204 that drives the crushing and granulating roller 202 to rotate is provided on one side of the housing 201. A discharge channel 205 is provided at the bottom of the housing 201. A film inlet 206 is provided on the left side of the discharge channel 205. A guide plate 207 that contacts the conveyor belt 4 is inclined at the bottom of the outer wall of the film inlet 206. A discharge cylinder 208 is provided at the bottom of the discharge channel 205. A mixing roller 209 is rotatably mounted inside the discharge cylinder 208. A servo motor 210 that drives the mixing roller 209 to rotate is provided in the interlayer of the housing 201. A screen plate 211 is provided on the bottom surface of the discharge cylinder 208.

[0020] The method for preparing graphene rubber foam particles using a particle crushing and mixing device includes the following steps: Step S1, introducing block-shaped graphene rubber foam blocks into the crushing and mixing box 2;

[0021] Step S2: Place the elastic sheet on the conveyor belt 4;

[0022] In step S3, the graphene rubber foam block is crushed into granules by the rotational cooperation of the crushing and granulation roller 202 and the crushing plate 203, and then enters the discharge channel 205.

[0023] In step S4, the conveyor belt 4 feeds the elastic sheet into the sheet inlet 206. During the feeding process, it passes through the heating seat 6. The heating seat 6 outputs heat to melt the upper surface of the elastic sheet and effectively mix and embed it into the surface of the graphene rubber foam particles.

[0024] In step S5, the elastic sheet enters the discharge channel 205 through the sheet inlet 206 and mixes with the graphene rubber foam particles, then falls together into the discharge cylinder 208. The mixing roller 209 in the discharge cylinder 208 is driven to rotate by the servo motor 210. The mixing roller 209 crushes the elastic sheet. As the cooling fan 8 outputs air force, the elastic particles and graphene rubber foam particles cool and combine together to form buffered graphene rubber foam particles and graphene rubber foam blocks. The weight ratio is: 50-60 parts of ethylene-vinyl acetate copolymer, liquid polyisocyanate... The mixture comprises 23-32 parts pentadiene rubber, 3-12 parts methyl vinyl phenyl silicone rubber, 10-13 parts graphene, 6-10 parts EVA color masterbatch, 8-9.5 parts aluminum silicate fiber tube, 2-3 parts foaming agent, 2-3 parts micropore regulator, 5-8 parts antioxidant, 1-2 parts crosslinking agent, 3-4 parts zinc stearate, and 3-6 parts resin adhesive. The elastic film is made of TPU material. The discharge cylinder 208 and the box body 201 are integrated. The inner wall of the discharge cylinder 208 is provided with grinding particles that cooperate with the mixing roller 209.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A method for preparing graphene rubber foam granules, wherein a particle crushing and mixing device is used for granulation in the method for preparing graphene rubber foam granules. The particle crushing and mixing device includes a frame (1), a crushing and mixing box (2) is provided in the middle of the upper end of the frame (1), a discharge port (3) connected to the bottom end of the crushing and mixing box (2) is provided on the inner side of the bottom of the frame (1), a conveyor belt (4) is horizontally provided on the left side of the upper end of the frame (1), the right end of the conveyor belt (4) is embedded in the left side of the crushing and mixing box (2), a control panel (5) electrically connected to the crushing and mixing box (2) is provided at the front end of the frame (1), a heating seat (6) is provided in the middle of the conveyor belt (4), a support rod (7) is provided on the rear side of the frame (1), a cooling fan (8) is provided at the upper end of the support rod (7), and the crushing and mixing box (2) includes a box body (201) and a crushing and granulating roller (202). 202) Rotatably located inside the top of the box (201), the top of the box (201) is provided with a crushing action plate (203) that meshes with the crushing and granulation roller (202), the side of the box (201) is provided with a main motor (204) that drives the crushing and granulation roller (202) to rotate, the bottom of the box (201) is provided with a discharge channel (205), the left side of the discharge channel (205) is provided with a film inlet (206), the bottom of the outer wall of the film inlet (206) is inclined with a guide plate (207) that contacts the conveyor belt (4), the bottom of the discharge channel (205) is provided with a discharge cylinder (208), the discharge cylinder (208) is rotatably provided with a mixing roller (209), the interlayer of the box (201) is provided with a servo motor (210) that drives the mixing roller (209) to rotate, and the bottom surface of the discharge cylinder (208) is provided with a screen plate (211). A method for preparing graphene rubber foam particles using a particle crushing and mixing device includes the following steps: Step S1: The block-shaped graphene rubber foam block is introduced into the crushing and mixing box (2); Step S2: Place the elastic sheet on the conveyor belt (4); In step S3, the graphene rubber foam block is crushed into granules by rotating and cooperating with the crushing and granulation roller (202) and the crushing action plate (203), and then enters the discharge channel (205); Step S4, the conveyor belt (4) inputs the elastic sheet into the sheet inlet (206). During the input process, it will pass through the heating seat (6). The heating seat (6) outputs heat to heat melt the upper surface of the elastic sheet and effectively mix and embed it into the surface of the graphene rubber foam particles. In step S5, the elastic sheet enters the discharge channel (205) through the sheet inlet (206) and mixes with the graphene rubber foam particles. They then fall into the discharge cylinder (208). The mixing roller (209) in the discharge cylinder (208) is driven to rotate by the servo motor (210). The mixing roller (209) crushes the elastic sheet. As the cooling fan (8) outputs air, the elastic particles and the graphene rubber foam particles cool and combine together to form buffered graphene rubber foam particles.

2. The method for preparing graphene rubber foam particles according to claim 1, characterized in that, The graphene rubber foam block is formulated according to the following weight ratio: 50-60 parts of ethylene-vinyl acetate copolymer, 23-32 parts of liquid polyisoprene rubber, 3-12 parts of methyl vinyl phenyl silicone rubber, 10-13 parts of graphene, 6-10 parts of EVA masterbatch, 8-9.5 parts of aluminum silicate fiber tube, 2-3 parts of foaming agent, 2-3 parts of micropore regulator, 5-8 parts of antioxidant, 1-2 parts of crosslinking agent, 3-4 parts of zinc stearate, and 3-6 parts of resin adhesive.

3. The method for preparing graphene rubber foam particles according to claim 1, characterized in that: The elastic film is made of TPU material.

4. The method for preparing graphene rubber foam particles according to claim 1, characterized in that: The discharge cylinder (208) and the box body (201) are an integrated structure.

5. The method for preparing graphene rubber foam particles according to claim 1, characterized in that: The inner wall of the discharge cylinder (208) is provided with grinding particles that cooperate with the mixing roller (209).

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