阅读说明：本技术 一种石墨烯复合碳毡的制备方法 (Preparation method of graphene composite carbon felt ) 是由 陈永贵 于 2019-08-28 设计创作，主要内容包括：本发明属于复合碳毡制备领域,尤其是一种石墨烯复合碳毡的制备方法,针对现有的对碳毡进行切片时,不便于对产生的废料及灰尘进行处理,容易污染生产环境的问题,现提出如下方案,其包括以下步骤：S1：将粘结剂加入N,N-二甲基甲酰胺中,搅拌混合均匀,然后再加入石墨烯和有机溶剂搅拌混合均匀,制得混合液；S2：对碳毡进行定位,使用切割设备对碳毡切片,使用除尘设备对灰尘进行处理,然后标号并称取原始重量,然后浸入混合液中；S3：将浸泡好的碳毡取出,放入烘箱中烘干,本发明能够有效的对废料及灰尘进行处理,避免污染生产环境,同时能够防止碳毡卷材在切割时位置发生偏移,且可以根据切割尺寸调整切刀的位置。(the invention belongs to the field of composite carbon felt preparation, and particularly relates to a preparation method of a graphene composite carbon felt, aiming at the problems that the existing carbon felt is inconvenient to treat produced waste and dust and easy to pollute the production environment when being sliced, the following scheme is proposed, and the preparation method comprises the following steps: s1: adding the binder into N, N-dimethylformamide, uniformly stirring and mixing, then adding the graphene and the organic solvent, and uniformly stirring and mixing to obtain a mixed solution; s2: positioning the carbon felt, slicing the carbon felt by using cutting equipment, treating dust by using dust removing equipment, marking and weighing the original weight, and then immersing the carbon felt into the mixed solution; s3: the soaked carbon felt is taken out and put into a drying oven for drying, the waste materials and dust can be effectively treated, the pollution to the production environment is avoided, meanwhile, the position of the carbon felt coiled material can be prevented from being deviated during cutting, and the position of the cutter can be adjusted according to the cutting size.)

1. A preparation method of a graphene composite carbon felt comprises the following steps:

S1: adding the binder into N, N-dimethylformamide, uniformly stirring and mixing, then adding the graphene and the organic solvent, and uniformly stirring and mixing to obtain a mixed solution;

s2: positioning the carbon felt, slicing the carbon felt by using cutting equipment, treating dust by using dust removing equipment, marking and weighing the original weight, and then immersing the carbon felt into the mixed solution;

s3: taking out the soaked carbon felt, and putting the carbon felt into a drying oven for drying to obtain a graphene composite carbon felt;

S4: and stacking the graphene composite carbon felt, weighing the weight record, and finally warehousing and storing.

2. the method as claimed in claim 1, wherein in the step S1, the amount of the binder is 40-160mg, the amount of the graphene is 150-350mg, and the amount of the N, N-dimethylformamide is 100-350 mL.

3. The preparation method of the graphene composite carbon felt according to claim 1, wherein in the step S1, the binder is added into N, N-dimethylformamide, the mixture is put into a stirring device and stirred uniformly, then the graphene and the organic solvent are added and stirred uniformly, the rotation speed of the stirring device is 500-550r/min, and the stirring time is 1-2 h.

4. The method of claim 1, wherein in step S2, the carbon felt web is conveyed to a cutting table by a feeding mechanism, and is flattened by a pressing roller while being fed, and then is pressed down by an electric pushing rod to compress the carbon felt web by the frame.

5. the method of claim 1, wherein in the step S2, the cutting device includes a cylinder and a cutter, and the cutter is driven by the cylinder to move downwards to cut the carbon felt roll.

6. The method of claim 1, wherein in the step S2, the dust removing device comprises a dust collector, a dust collecting pipe and a dust collecting cover, the dust collector is opened while the cutting is performed, and dust is sucked from waste materials generated during the cutting.

7. The method for preparing the graphene composite carbon felt according to claim 4, wherein a baffle is arranged on the cutting table, one end of the carbon felt coiled material is in contact with the baffle, the cylinder and the cutter can move horizontally on a guide rail, the guide rail is provided with scale marks, and the position of the cylinder and the position of the cutter can be adjusted by cutting the size of the carbon felt coiled material.

8. The preparation method of the graphene composite carbon felt according to claim 6, wherein the dust hood is connected with a swinging mechanism, the swinging mechanism is matched with an air cylinder, and the air cylinder drives the swinging mechanism to continuously swing back and forth while pushing the cutter to move, so that the suction range is enlarged.

9. The method for preparing the graphene composite carbon felt according to claim 1, wherein in the step S3, the drying temperature of an oven is 100-150 ℃.

10. the method as claimed in claim 8, wherein the swinging mechanism includes a rotating shaft, the dust hood is fixedly connected to the rotating shaft, a pressing plate is fixedly mounted on an output shaft of the cylinder, the pressing plate has a threaded hole, the rotating shaft has a plurality of threads, two adjacent sets of threads have opposite rotation directions, the cylinder drives the pressing plate to press down, and the threaded hole of the pressing plate is engaged with the plurality of threads of the rotating shaft, so that the rotating shaft drives the dust hood to swing back and forth continuously.

Technical Field

The invention relates to the technical field of composite carbon felt preparation, in particular to a preparation method of a graphene composite carbon felt.

Background

Graphene (Graphene) is a hexagonal honeycomb-shaped two-dimensional carbon nanomaterial formed by sp hybridized orbits of carbon atoms, has excellent optical, electrical and mechanical properties, has important application prospects in the aspects of materials science, micro-nano processing, energy, biomedicine, drug delivery and the like, and is considered to be a revolutionary material in the future.

Through retrieval, the patent document with the application number of 201811342101.1 discloses a preparation method of a graphene composite carbon felt, which comprises the following steps: (1) shearing 50-150 mg of a binder membrane, putting the binder membrane into 100-300 mL of N, N-dimethylformamide, stirring for 2-5 hours at the temperature of 120-150 ℃, and completely dissolving the membrane in the N, N-dimethylformamide to form a mixed solution; wherein the binder membrane is a Nafion membrane, an N-methylpyrrolidone (NMP) membrane, a Polyethylene (PE) membrane, Polytetrafluoroethylene (PTFE) particles or polyvinylidene fluoride (PVDF) powder, and the thickness of the binder membrane is 40-60 mu m; (2) putting 100-300 mg of graphene into the mixed liquid obtained in the step (1); (3) mixing 400-500 mL of organic solvent into the mixed liquid obtained in the step (2), and stirring for 8-20 hours at the rotating speed of 500-700 rpm/s; (4) cutting the carbon felt into pieces, marking the pieces, and weighing the original weight; (5) immersing the carbon felt obtained in the step (4) into the mixed liquid obtained in the step (3) for 5-25 times, wherein the time for depositing graphene after each immersion is 2-5 s; (6) putting the carbon felt obtained in the step (5) into an oven, and drying for 8-20 hours at the temperature of 100-150 ℃ to obtain a graphene composite carbon felt, wherein the thickness of a graphene film layer on the carbon felt is 1-10 microns; (7) and (4) taking out the carbon felt with the corresponding mark after drying, weighing the weight record, and sealing and storing the carbon felt for later use after weighing.

however, when the carbon felt is sliced, the generated waste materials and dust are not convenient to treat, and the production environment is easily polluted, so that a preparation method of the graphene composite carbon felt is provided for solving the problems.

Disclosure of Invention

The invention aims to solve the defects that the produced waste and dust are inconvenient to treat and the production environment is easy to pollute when a carbon felt is sliced in the prior art, and provides a preparation method of a graphene composite carbon felt.

in order to achieve the purpose, the invention adopts the following technical scheme:

a preparation method of a graphene composite carbon felt comprises the following steps:

S1: adding the binder into N, N-dimethylformamide, uniformly stirring and mixing, then adding the graphene and the organic solvent, and uniformly stirring and mixing to obtain a mixed solution;

s2: positioning the carbon felt, slicing the carbon felt by using cutting equipment, treating dust by using dust removing equipment, marking and weighing the original weight, and then immersing the carbon felt into the mixed solution;

s3: taking out the soaked carbon felt, and putting the carbon felt into a drying oven for drying to obtain a graphene composite carbon felt;

S4: and stacking the graphene composite carbon felt, weighing the weight record, and finally warehousing and storing.

Preferably, in the S1, the amount of the binder is 40-160mg, the amount of the graphene is 150-350mg, and the amount of the N, N-dimethylformamide is 100-350 mL.

Preferably, in the step S1, the binder is added into N, N-dimethylformamide, and then the mixture is put into a stirring device to be stirred and mixed uniformly, and then the graphene and the organic solvent are added to be stirred and mixed uniformly, wherein the rotation speed of the stirring device is 500-.

preferably, in S2, the carbon felt web is conveyed to a cutting table by a feeding mechanism, and is flattened by a pressing roller while being fed, and then is pressed down by a frame driven by an electric push rod, so that the carbon felt web is pressed tightly by the frame.

Preferably, in S2, the cutting device includes an air cylinder and a cutter, and the cutter is driven by the air cylinder to move downwards to cut the carbon felt web.

Preferably, in S2, the dust removing apparatus includes a dust collector, a dust collecting pipe, and a dust collecting cover, and the dust collector is opened while cutting, and dust is sucked from the waste generated during cutting.

Preferably, be equipped with the baffle on the cutting bed, the one end and the baffle contact of carbon felt coiled material, cylinder and cutter horizontal migration on the guide rail are equipped with the scale mark, and the size through cutting carbon felt coiled material can be adjusted by the position of cylinder and cutter.

Preferably, the dust hood is connected with the swinging mechanism, the swinging mechanism is matched with the cylinder, and the cylinder drives the swinging mechanism to enable the dust hood to continuously swing back and forth while pushing the cutter to move, so that the suction range is enlarged.

preferably, in the S3, the drying temperature of the oven is 100 ℃ and 150 ℃.

Preferably, the swing mechanism includes the axis of rotation, and dust cage and axis of rotation fixed connection, fixed mounting has the clamp plate on the output shaft of cylinder, sets up threaded hole on the clamp plate, is equipped with the multistage screw thread in the axis of rotation, and adjacent two sets of screw threads revolve to opposite, and cylinder drive clamp plate pushes down, and the screw hole on the clamp plate cooperates with the epaxial multistage screw thread engagement of rotation, can make the axis of rotation drive dust cage continuous swing back and forth.

compared with the prior art, the invention has the beneficial effects that:

(1) According to the scheme, the frame is driven to press down through the electric push rod, and the carbon felt coiled material is compressed through the frame, so that the carbon felt coiled material can be prevented from being shifted in position during cutting;

(2) According to the scheme, the cylinder and the cutter can move horizontally on the guide rail, the guide rail is provided with scale marks, and the positions of the cylinder and the cutter can be adjusted through the size of the cut carbon felt coiled material;

(3) According to the scheme, the dust removing mechanism can effectively suck waste materials and dust, and the dust hood can continuously swing back and forth, so that the suction range is enlarged;

(4) The invention can effectively treat waste materials and dust, avoid polluting production environment, prevent the carbon felt coiled material from deviating in position during cutting, and adjust the position of the cutter according to the cutting size.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.