CN206932500U

CN206932500U - A kind of antistatic plastic structure with metal appearance

Info

Publication number: CN206932500U
Application number: CN201720168485.4U
Authority: CN
Inventors: 肖云
Original assignee: He Honghua Nano Technology (shanghai) Co Ltd
Current assignee: He Honghua Nano Technology (shanghai) Co Ltd
Priority date: 2017-02-23
Filing date: 2017-02-23
Publication date: 2018-01-26
Anticipated expiration: 2027-02-23

Abstract

It the utility model is related to a kind of antistatic plastic structure with metal appearance, including plastic layer positioned at bottom and the prime coat, antistatic film, protective layer and the heat dissipating layer that are set in turn in above plastic layer；Wherein, the prime coat is transparent UV enamelled coatings; the antistatic film is that the protective layer is transparent UV enamelled coatings or transparent polyimide resin coating, and the heat dissipating layer includes at least two layers of thermal dispersant coatings and the nanometer metallic film formed under vacuum state by evaporation.Compared with prior art, antistatic plastic structure described in the utility model with metal appearance, while with metal appearance, decay will not be produced to any high-frequency signal, effectively ensure the transmission and reception of communication signal, and realize the lightweight of product, so that the ESD of electronic product barrier propterty increase, its hardness, wearability are improved, and have radiating and cooling performance well, extend the service life of plastic structure and corresponding product.

Description

A kind of antistatic plastic structure with metal appearance

Technical field

It the utility model is related to plastic coating field, more particularly to a kind of antistatic plastic structure with metal appearance.

Background technology

With the increasingly popularization of current electronic product, electronic equipment is seen everywhere in our production and living, electric energy Widely use, and chemical synthetic material widely uses so that the harm that electrostatic belt comes is increasingly severe, but electronics produces The core circuit of product is unusual fragile, and the situation of electrostatic breakdown happens occasionally, and the serious operating for even resulting in equipment stops Only.

It is always by directly manufacturing parts or with water electroplating technique pair using metal on some equipment at present It is processed in plastic cement products.Parts are directly manufactured using metal so that product weight aggravates, in addition for electric signal meeting The effect of shielding is produced, using there is suitable limitation；And it is processed using water electroplating technique so that plastic surface has gold The attribute of category, but pollution of its technique for environment in itself is larger, and lose plastic cement and penetrate work for electric signal With.

And electronic product is at work, some makees useful work output to input power, and also many electric energy turn Heat energy is melted into, raises the component temperature of electronic product, this can influence the life-span of electronic product and using feel, exist certain Potential safety hazard.

With raising of the people to environmental requirement, and use equipment lightweight, the requirement of thermal diffusivity, these traditional sides Method cannot meet the needs of present electronic product.

Utility model content

The defects of the purpose of this utility model is to overcome in the prior art, it is proposed that a kind of anti-quiet with metal appearance Electric plastic structure, it uses free of contamination NCVM techniques to substitute the technique of high pollution, and realizes the lightweight of product so that electricity The ESD of sub- product barrier propterty increase, and heat dissipating layer is set up, effectively reduce the temperature of product.

To achieve the above object, the utility model adopts the following technical scheme that：

A kind of antistatic plastic structure with metal appearance, including plastic layer positioned at bottom and it is set in turn in modeling Prime coat, antistatic film, protective layer and heat dissipating layer above glue-line.

In order to further optimize above-mentioned technical proposal, the technical measures that the present invention is taken also include：

Preferably, the heat dissipating layer includes at least two layers of thermal dispersant coatings, and the thermal dispersant coatings radiate selected from CNT One kind in coating, nano-oxide thermal dispersant coatings, graphite radiating coating, the thickness of each thermal dispersant coatings is 6-12 μm, more excellent Select 8 μm；It is highly preferred that the innermost layer of the heat dissipating layer is nano-oxide thermal dispersant coatings or graphite radiating coating, the radiating The outermost layer of layer is CNT thermal dispersant coatings.

Preferably, the plastic layer is selected from acrylonitrile-butadiene-styrene (ABS) (ABS), polyformaldehyde (POM), makrolon (PC), one kind in polymethyl methacrylate (PMMA), polypropylene (PP), polyamide (PA), more preferably POM.

Preferably, the antistatic film is that it is selected from and the nanometer metallic film formed under vacuum state by evaporation One kind in tin metal plated film, indium metal plated film or indium-containing alloy plated film.

Preferably, the crystal grain degree of the antistatic film is 8~12nm, more preferably 10nm.

Preferably, the thickness of the antistatic film is 60~90nm, more preferably 75nm.

Preferably, the prime coat is transparent UV enamelled coatings, and the thickness of the prime coat is 4~7 μm, more preferably 6 μm.

Preferably, the protective layer is transparent polyimide resin coating or transparent UV enamelled coatings, and its thickness is 20~30 μ M, more preferably 25 μm.

Preferably, the resistivity of the antistatic film reaches more than 200 Ω .M.

Plastic structure described in the utility model can be used for the parts for preparing electronic product, it can also be used to prepare electronics production The containment vessel of product.

Compared with prior art, the utility model has the advantages that：

Because 2 μm or so of uneven place be present in the surface of plastic cement, therefore first in its surface coating layer of transparent UV Paint film, ensure the smooth of surface；Then set on smooth UV paint films under vacuum state by evaporation the nanogold that is formed Belong to film as antistatic film, and set transparent UV coatings or clear polyimides resinous coat to make on antistatic film For diaphragm, this causes plastic cement and its sheet material has metallized finishes, and nanometer metallic film is again special insulation structure, is improved The ESD of product barrier propterty, it will not produce decay to any high-frequency signal, can effectively ensure the transmission of communication signal with Receive, while there is metal coating mirror effect again, and various colors, be the use of preferable 3C Product minute surface and appearance part Material, and the setting of UV paint films and/or clear polyimides resinous coat enhances the intensity and wearability of plastic structure；Moulding The outermost layer of plastic structure sets at least two layers of thermal dispersant coatings, is used to improve and plastic surface positioned at most inboard thermal dispersant coatings Capacity of heat transmission and heat-sinking capability, it is used to improve thermal radiation capability and the spoke between Air Interface positioned at outermost thermal dispersant coatings Area is penetrated, the heat-sinking capability of product can be strengthened, so as to reduce the operating temperature of product, the service behaviour of product is improved, extends production The service life of product；

Plastic structure described in the utility model has passed through following test：ESD performance tests, resistance 200M~20G with On；RF transceiver index tests, its test result meet YD/T1050-2000 regulation；And conventional reliability test, such as The test that plastic structure as cell phone appearance part passes through electrical characteristic.

Brief description of the drawings

Fig. 1 is the structural representation according to the antistatic plastic structure with metal appearance of an embodiment；

Reference in figure is：

1st, plastic layer；2nd, prime coat；3rd, antistatic film；4th, protective layer；5th, heat dissipating layer.

Embodiment

With reference to the accompanying drawings and examples, specific embodiment of the present utility model is further described.Implement below Example is only used for clearly illustrating the technical solution of the utility model, and can not limit protection model of the present utility model with this Enclose.

As shown in figure 1, a kind of antistatic plastic structure with metal appearance that the utility model embodiment provides, wherein Antistatic film 3 is by NCVM (Non conductive vacuum metalization, non-conductive vacuum plating) PROCESS FOR TREATMENT Formed, to including successively outside in the plastic structure：Plastic layer 1, prime coat 2, antistatic film 3, protective layer 4 and heat dissipating layer 5； The one kind of the material of wherein described plastic layer 1 in ABS, POM, PC, PMMA, PP, PA.

Specifically, the forming process of antistatic film 3 is as follows：Pass through vacuum plating so that conductive inorganic gold originally Category (being tin under usual state, the indium either alloy containing indium), by evaporation in the state of vacuum, makes metal become small Particle be uniformly attached to product surface, so as to form brilliant degree on the surface of plastic layer for 8~12nm (such as 10nm or so) Metallic film, reach metal effect, the resistivity of the metallic film reaches more than 200 Ω .M and its thickness is in 60~90nm It is that a kind of can belong to inorganic nano material effectively by ESD and the metallic film of mobile phone RF performance tests between (such as 75nm) Material, it belongs to special insulation structure, and the effect of shielding will not can be produced for electric signal.

In the present embodiment, the prime coat 2 is the transparent UV enamelled coatings that thickness is 4~7 μm (such as 6 μm), and it is used to ensure modeling The smooth surface of glue is uniform to increase the adhesive force of metallic particles and attachment, and the metal effect of plastic structure is by being attached to prime coat Antistatic film 3 on 2 embodies, and the protective layer 4 is the transparent UV enamelled coatings that thickness is 20~30 μm (such as 25 μm) or transparent poly- Imide resin coating, its hardness and wearability that are used to improve plastic structure, the scattering layer 5 be include at least two layers dissipate Hot coating, the thermal dispersant coatings in CNT thermal dispersant coatings, nano-oxide thermal dispersant coatings, graphite radiating coating one Kind, a diameter of 20~30nm of CNT and nano-oxide in each thermal dispersant coatings, the particle diameter of graphite is 1~5 μm, each radiating The thickness of coating is 6-12 μm (such as 8 μm), can strengthen heat transfer effect using multi-layer heat dissipation coating, effectively reduces the temperature of product Degree.

In comparative example 1, plastic structure is not provided with heat dissipating layer, and plastic structure only sets one layer of heat-radiation coating in comparative example 2 Layer.Plastic structure described in the embodiment of the present invention, comparative example 1, comparative example 2 is prepared into length, width and height all same and injection 70 respectively The closed cuboid of DEG C hot water.After 10 minutes, the temperature on each closed cuboid surface is measured, its result is as shown in the table：

	Initial temperature, DEG C	Temperature after 10 minutes, DEG C	Temperature lapse rate, %
				Embodiment	70	56	20.0
Comparative example 1	70	68	2.8
				Comparative example 2	70	61	12.8

As seen from the above table, the radiating and cooling positive effect of the plastic structure with multi-layer heat dissipation coating is excellent described in the present embodiment In single coating and the plastic structure of non-coating.

From above-described embodiment, the antistatic plastic structure described in the utility model with metal appearance is with gold While belonging to outward appearance, decay will not be produced to any high-frequency signal, effectively ensure the transmission and reception of communication signal, its is hard Degree, wearability are improved, and have radiating and cooling effect well, extend the use longevity of plastic structure and corresponding product Life.

Specific embodiment of the utility model is described in detail above, but it is only used as example, the utility model It is not restricted to particular embodiments described above.To those skilled in the art, it is any that the practicality is equal Modifications and substitutions are also all among category of the present utility model.Therefore, the institute in the case where not departing from spirit and scope of the present utility model The impartial conversion of work and modification, it should all cover in the scope of the utility model.

Claims

A kind of 1. antistatic plastic structure with metal appearance, it is characterised in that including the plastic layer (1) positioned at bottom and Prime coat (2), antistatic film (3), protective layer (4) and the heat dissipating layer (5) being set in turn in above plastic layer (1).
A kind of 2. antistatic plastic structure with metal appearance according to claim 1, it is characterised in that the radiating Layer (5) includes at least two layers of thermal dispersant coatings, and the thermal dispersant coatings are selected from CNT thermal dispersant coatings, nano-oxide heat-radiation coating One kind in layer, graphite radiating coating, the thickness of each thermal dispersant coatings is 6~12 μm.
A kind of 3. antistatic plastic structure with metal appearance according to claim 1, it is characterised in that the plastic cement The one kind of layer (1) in ABS, POM, PC, PMMA, PP, PA.
4. a kind of antistatic plastic structure with metal appearance according to claim 1, it is characterised in that described anti-quiet Conductive film (3) is that it is selected from tin metal plated film, indium metal plated film the nanometer metallic film that is formed under vacuum state by evaporation Or one kind in indium-containing alloy plated film.
5. a kind of antistatic plastic structure with metal appearance according to claim 1, it is characterised in that described anti-quiet The crystal grain degree of conductive film (3) is 8~12nm.
6. a kind of antistatic plastic structure with metal appearance according to claim 1, it is characterised in that described anti-quiet The thickness of conductive film (3) is 60~90nm.
A kind of 7. antistatic plastic structure with metal appearance according to claim 1, it is characterised in that the priming paint Layer (2) is transparent UV enamelled coatings, and the thickness of the prime coat is 4~7 μm.
A kind of 8. antistatic plastic structure with metal appearance according to claim 1, it is characterised in that the protection Layer (4) is transparent polyimide resin coating or transparent UV enamelled coatings, and its thickness is 20~30 μm.
9. a kind of antistatic plastic structure with metal appearance according to claim 1, it is characterised in that described anti-quiet The resistivity of conductive film reaches more than 200 Ω .M.