CN210899675U

CN210899675U - Vertical graphene optical heating film

Info

Publication number: CN210899675U
Application number: CN201921418844.2U
Authority: CN
Inventors: 郑伟; 钟西舟; 陈旺寿; 石柳婷; 赵鑫
Original assignee: Shenzhen Yixin Technology R & D Co ltd
Current assignee: Shenzhen Yixin Technology R & D Co ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-06-30
Anticipated expiration: 2029-08-29

Abstract

The utility model discloses a type of standing vertically graphite alkene optical heating film, top-down include graphite alkene protective material, type of standing vertically graphite alkene and paste the material, type of standing vertically graphite alkene embedding graphite alkene protective material. Compared with the prior art, the utility model discloses simple structure, with low costs and easily production carry out optical heating based on upright type graphite alkene, are different from traditional electrical heating, have avoided complicated structure and potential safety hazard and electric field to biochemical reaction's interference, and the homogeneity of heating has been guaranteed to the good heat conductivility of the type graphite alkene of standing upright simultaneously. Furthermore, the utility model discloses it is small, flexible, easily combine together with other hardware, satisfy portable, the demand that can throw.

Description

Vertical graphene optical heating film

Technical Field

The utility model belongs to the technical field of the film, especially, relate to an upright type graphite alkene optical heating film.

Background

With the scientific and technological progress in the field of biochemistry and the expanding demand of the market for biochemical detection, development of low-cost, portable and disposable biochemical detection equipment is widely regarded. The reaction cell is an important part of biochemical detection equipment, is a place where biochemical reaction actually occurs, and is generally a container in which a solution can be stored. It is known that the biochemical reaction speed and the activity of various catalysts and enzymes are very sensitive to the ambient temperature, and the temperature exceeding the room temperature is often required, so that it is necessary to develop a biochemical reaction heating system which is convenient to use and low in cost.

However, the conventional electrical heating system needs to design related circuits and power supply devices, so that the design and use difficulty is increased, and the cost is high; in a disposable or portable use scene, a circuit is required to be connected for each use, and the working procedures are increased; once powered on, there are safety concerns and the sensitivity of the electric field to the biochemical reaction and the sensor may also have many unknown interference factors. Therefore, developing a heating system that is not charged, does not require connecting lines, is low in cost, is easy to use, and heats uniformly is a necessary requirement for developing low-cost, portable, disposable biochemical detection equipment, and becomes a hard requirement in the industry.

For a biochemical sensor heating system, in addition to the requirements of safety and convenience, the heating system also needs to be heated uniformly in a certain area, and overheating and supercooling at certain positions are avoided, so that the biochemical reaction is stable and reliable. Meanwhile, in order to achieve the purpose of portability and smallness, the heater needs to have a simple structure, a small volume as much as possible and an optimal film shape. In order to be integrated with the biochemical reaction module, the heater is preferably somewhat flexible to accommodate the shape of the other hardware. The heating device can also be used in other fields such as medical treatment, nursing, food sanitation and the like.

The vertical graphene is successfully prepared in 2003, has huge specific surface area and microscopic mechanical strength due to a special structure, is easy for industrial production, has excellent performance, receives wide attention, and is applied to a plurality of fields such as catalyst loading, biosensors, energy storage, electrochemical electrodes, flexible electrodes, transparent electrodes, heating, heat conduction and the like.

The typical vertical graphene consists of a planar graphene layer positioned at the bottom layer and a vertical graphene layer grown on the planar graphene layer, wherein the vertical graphene layer is a good black body with the emissivity close to 1 due to the special appearance of the vertical graphene layer, has the absorption close to 100% in the near-ultraviolet to medium-infrared spectrum range, and can effectively convert light radiation into heat. Graphene is one of the best known materials with the best thermal conductivity, and can reach 5300W/m.k, and the vertical graphene layer can rapidly transfer heat to the bottom planar graphene layer, and the planar graphene layer has good thermal conductivity in a plane, so that the heat can be further uniformly dispersed in the plane. Therefore, the vertical graphene is a combination of a good light wave absorption material and a good heat conduction material, and can be made into an optical heating film.

In view of this, the utility model aims at providing an upright type graphite alkene optical heating film, its simple structure, with low costs and easily production carry out optical heating based on upright type graphite alkene, are different from traditional electrical heating, have avoided complicated structure and potential safety hazard and electric field to biochemical reaction's interference, and the homogeneity of heating has been guaranteed to the good heat conductivility of the type graphite alkene of standing vertically simultaneously. Furthermore, the utility model discloses it is small, flexible, easily combine together with other hardware, satisfy portable, the demand that can throw.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the vertical graphene optical heating film is simple in structure, low in cost and easy to produce, solar energy can be directly utilized to perform optical heating based on the vertical graphene, the vertical graphene optical heating film is different from traditional electrical heating, the interference of a complex structure, potential safety hazards and an electric field to biochemical reaction is avoided, and meanwhile the uniformity of heating is guaranteed by the good heat conducting capacity of the vertical graphene. Furthermore, the utility model discloses it is small, flexible, easily combine together with other hardware, satisfy portable, the demand that can throw.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the vertical graphene optical heating film comprises a graphene protective material, vertical graphene and a pasting material from top to bottom, wherein the vertical graphene is embedded in the graphene protective material.

As an improvement of the optical heating film of the present invention, the vertical graphene is prepared by a plasma-assisted chemical vapor deposition method under low pressure, and the structure thereof includes a planar graphene layer and a vertical graphene layer from bottom to top.

As an improvement of the optical heating film of the present invention, the planar graphene layer is composed of a horizontal graphite sheet layer in a complex lap joint, and the average thickness is 2nm to 100 nm.

As an improvement of the optical heating film of the present invention, the vertical graphene layer is composed of vertical graphite sheet layers in a complex lap joint manner, and is vertical to the planar graphene layer, the average thickness is 10nm to 10 μm, and the light absorption capacity is between 10% to 100%, preferably 50% to 100%.

As an improvement of the utility model, the graphite alkene protective material optics is transparent, has certain pliability and mechanical strength for the fragile structure of protection type graphite alkene macro for at least one kind among Polyacrylonitrile (PAN), polyvinylidene fluoride (PVDF), ya keli (PMMA), Polytetrafluoroethylene (PTFE), Polystyrene (PS), Polyethylene (PE), polyester resin (PET), polypropylene (PP), Polyimide (PI), polyvinyl chloride (PVC), Polycarbonate (PC), polyvinylidene chloride (PVDC).

As an improvement of the utility model, the pasting material is used for bonding fixed upright graphite alkene and graphite alkene protective material, can paste in the base member both sides, glues for methyl alcohol, unsaturated poly vinegar and styrene monomer glue, epoxy optical cement, organic silicon resin glue, α -cyanoacrylate cool glue, acrylic acid cool type photosensitive glue in at least one kind.

Compared with the prior art, the utility model discloses following beneficial effect has at least:

1. utilize luminescent device directly to shine like incandescent lamp and LED shot-light the utility model provides an upright type graphite alkene optical heating film turns into light radiation energy heat energy to line connection and power, circuit design have been avoided to heating biochemical reaction module, preparation simple process, convenient operation, and is with low costs, is suitable for the scale production, can be used to disposable device.

2. The utility model provides an optical heating film need not be circular telegram, has avoided the interference of electric field to the biochemical reaction.

3. The utility model provides an optical heating film has from near ultraviolet to mid-infrared's broad spectrum light absorption nature, and the light absorption rate is variable according to the thickness of the upright graphite alkene layer of preparing.

4. The utility model provides a plane graphite alkene layer that optical heating film contains can provide the excellent heat conductivity in the plane, makes the heating more even, has stopped hot spot and cold spot.

5. The optical heating film provided by the utility model has the thickness of only 0.1-10 μm, is light and small in size.

6. The utility model provides an optical heating film has certain flexibility, ductility and structural strength, more conveniently is applied to different occasions.

Drawings

Fig. 1 is a top view (a) of the vertical graphene scanning electron microscope and an appearance view (b) of the vertical graphene optical heating film of the present invention.

Fig. 2 is a schematic diagram of the vertical graphene optical heating film of the present invention.

Fig. 3 is an application scenario (a) and a fine structure diagram (b) of the vertical graphene optical heating film obtained in example 2 of the present invention.

Fig. 4 is an application scene diagram of the vertical graphene optical heating film obtained in embodiment 3 of the present invention.

Detailed Description

The present invention and its advantageous effects are described in detail below with reference to specific embodiments, but the embodiments of the present invention are not limited thereto.

Example 1

As shown in fig. 1, this embodiment provides a vertical graphene optical heating film, which is prepared by a plasma-assisted chemical vapor deposition method under low pressure, and has a structure including, from bottom to top, a planar graphene layer and a vertical graphene layer. The heating principle is as shown in fig. 2, and the upright graphite alkene layer of densely covered absorbs the light and converts into the heat as good black body, and the heat transfers to the bottom rapidly along upright graphite alkene layer, and the plane graphite alkene layer of bottom then with heat evenly distributed in the plane, reach the purpose of even heating.

Example 2

Fig. 3 shows an application scenario and a fine structure of the vertical graphene optical heating film according to this embodiment. The device comprises a light source 1, a vertical graphene optical heating film 2 absorbing 100% of light energy and a biochemical reaction tank 3 in an application scene. In the fine structure, the vertical graphene optical heating film 2 includes a vertical graphene layer 22 having a thickness of 1 μm, a planar graphene layer 23 having a thickness of 10nm, and a double-sided tape as a pasting material 24, with PVDF as a graphene protective material 21.

In the present embodiment, light energy from the light source 1 is absorbed by a black body formed by the upright graphene layers 22, and heat is transferred to the planar graphene layers 23, and is homogenized in the plane by the planar graphene layers 23, and finally the biochemical reaction cell 3 is heated.

Example 3

As shown in fig. 4, the application scenario of the vertical graphene optical heating film of this embodiment includes a light source 1, a vertical graphene optical heating film 2 that absorbs light energy by 50%, a biochemical reaction tank 3, and a vertical graphene optical heating film 4 that absorbs light energy by 100%. The vertical graphene optical heating film 2 capable of absorbing 50% of light energy comprises a vertical graphene layer with the thickness of 0.2 mu m, a plane graphene layer with the thickness of 10nm and a double-sided adhesive tape serving as a pasting material, wherein PVDF is used as a graphene protection material. The vertical graphene optical heating film 4 absorbing 100% of light energy comprises a planar graphene layer with the thickness of 10nm and a vertical graphene layer with the thickness of 0.2 μm, and epoxy resin optical cement is used as a pasting material.

In this embodiment, 50% of the light energy from the light source is absorbed by the black body formed by the vertical graphene optical heating film 2 and converted into heat, the left side of the biochemical reaction tank is heated, the remaining 50% of the light energy penetrates through the heating film 2 and the solution to reach the heating film 4, the light energy is completely absorbed by the heating film 4 and converted into heat, and the rear surface of the solution is heated, so that the temperature of the biochemical reaction tank 3 is more uniform.

Variations and modifications to the above-described embodiments may become apparent to those skilled in the art from the disclosure and teachings of the above description. Therefore, the present invention is not limited to the above-mentioned embodiments, and any obvious modifications, replacements or variations made by those skilled in the art on the basis of the present invention belong to the protection scope of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims

1. The vertical graphene optical heating film is characterized by comprising a graphene protective material, vertical graphene and a pasting material from top to bottom, wherein the vertical graphene is embedded into the graphene protective material.

2. The graphene optical heating film according to claim 1, wherein the graphene structure comprises a planar graphene layer and a vertical graphene layer from bottom to top.

3. The vertical graphene optical heating film according to claim 2, wherein the planar graphene layer is formed by horizontally and complexly lapping graphite sheets, and has an average thickness of 2nm to 100 nm.

4. The vertical graphene optical heating film according to claim 2, wherein the vertical graphene layer is formed by complexing and lapping vertical graphene sheets, the vertical graphene layer is vertical to the planar graphene layer, the average thickness of the vertical graphene layer is 10 nm-10 μm, and the light absorption capacity of the vertical graphene layer is 10-100%.

5. The vertical graphene optical heating film according to claim 1, wherein the pasting material is used for adhering and fixing the vertical graphene and the graphene protection material, and can be pasted on two sides of the substrate.