CN209260002U - A kind of NEW TYPE OF COMPOSITE mylar film - Google Patents

Abstract

The utility model discloses a kind of NEW TYPE OF COMPOSITE mylar films, including substrate, polytetrafluoroethylene film layer, layer of silica gel, aluminium foil layer and silica membrane layer；It is compound by not peelable type adhesive hot pressing between adjacent substrates, polytetrafluoroethylene film layer, layer of silica gel and aluminium foil layer；It is adhered between aluminium foil layer and silica membrane layer by peelable type adhesive；Member apertures are provided on substrate and polytetrafluoroethylene film layer；In the lower surface of substrate, adherency is provided with pressure-sensitive adhesive layer；Filled with the silica gel being connect with layer of silica gel in member apertures；The upper surface of layer of silica gel is provided with positioning convex point；Aluminium foil layer is made of aluminium foil；Heat discoloration ink is coated in the upper surface of aluminium foil layer.The utility model has good electromagnetic shielding performance and heat dissipation performance, while silica membrane layer is bonded using peelable type adhesive, in overheat conditions, silica membrane layer can be removed, flexibility is good.

Description

A kind of NEW TYPE OF COMPOSITE mylar film

Technical field

The utility model relates to mylar film field, in particular to a kind of NEW TYPE OF COMPOSITE mylar film.

Background technique

Mylar film is generally referred to by being die-cut to sheet material.Its characteristic: high insulation resistance, proof voltage is high, moisture resistant, high fever And the invasion of chemical substance；Low-shrinkage, be not easy embrittlement it is wear-resistant.Its purposes: product is widely used in electric insulation；PCB line The insulation of road plate, protection etc..Nonmetallic mylar film is mostly insulating effect, and common materials have PC, PET, is used for thin film switch or electricity The surface protection of sub- electric product or minor insulation；There are many colors of nonmetallic mylar film, and commonly using has transparent, white, black Color, other colors can be printed according to specified requirement.With the development of science and technology the electronic products such as laptop are daily as people Necessity in life has very multipart surface that can be bonded insulation mylar film in laptop, but due to component table Face is covered by insulation mylar film, and the heat that these components generate can be gathered between parts surface and insulation mylar film, not It can shed well, overheat easily leads to parts damages.

Utility model content

In order to solve the above technical problems, the utility model provides a kind of NEW TYPE OF COMPOSITE mylar film, solves existing wheat and draw Piece heating conduction is poor, and part mylar film does not have the problem of electromagnetic shielding performance.

In order to achieve the above objectives, the technical solution of the utility model is as follows: a kind of NEW TYPE OF COMPOSITE mylar film, including substrate, Polytetrafluoroethylene film layer, layer of silica gel, aluminium foil layer and silica membrane layer；The substrate, polytetrafluoroethylene film layer, silica gel Layer, aluminium foil layer and silica membrane layer are cascading from bottom to top；In the adjacent substrate, polytetrafluoroethylene film It is compound by not peelable type adhesive hot pressing between layer, layer of silica gel and aluminium foil layer；The aluminium foil layer and silica membrane layer Between adhered to by peelable type adhesive；The material of the polytetrafluoroethylene film layer is polytetrafluoroethylene film；Described Member apertures are provided on substrate and polytetrafluoroethylene film layer；In the lower surface of the substrate, adherency is provided with pressure-sensitive adhesive layer；Institute Layer of silica gel is stated to be made of silica gel；Filled with the silica gel being connect with the layer of silica gel in the member apertures；In the layer of silica gel Upper surface is provided with positioning convex point；It is provided on the aluminium foil layer and silica membrane layer and positioning convex point cooperation Location hole；The aluminium foil layer is made of aluminium foil；Heat discoloration ink is coated in the upper surface of the aluminium foil layer；The titanium dioxide Silicon membrane layer is made of transparent silica membrane.

As a kind of preferred embodiment of the utility model, release film is covered on the pressure-sensitive adhesive layer surface.

As a kind of preferred embodiment of the utility model, black out ink is coated in the upper surface of the substrate.

As a kind of preferred embodiment of the utility model, the silica membrane layer with a thickness of 0.1-0.15mm.

As a kind of preferred embodiment of the utility model, the substrate is made of PVC or PET material.

As a kind of preferred embodiment of the utility model, the substrate with a thickness of 0.05-0.12mm.

Through the above technical solutions, the beneficial effect of technical solutions of the utility model is: the utility model is structurally reasonable, tool There are good electromagnetic shielding performance and heat dissipation performance, while silica membrane layer is bonded using peelable type adhesive, In overheat conditions, silica membrane layer can be removed, flexibility is good, and using effect is good.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the structural schematic diagram of the utility model.

Number and corresponding component title represented by letter in figure:

1. 2. pressure-sensitive adhesive layer of substrate, 3. polytetrafluoroethylene film layer

4. 5. aluminium foil layer of layer of silica gel, 6. silica membrane layer

7. positioning convex point.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts Every other embodiment obtained, fall within the protection scope of the utility model.

Embodiment

In conjunction with Fig. 1, the utility model discloses a kind of NEW TYPE OF COMPOSITE mylar films, including substrate 1, polytetrafluoroethylene film layer 3, layer of silica gel 4, aluminium foil layer 5 and silica membrane layer 6.Substrate 1, polytetrafluoroethylene film layer 3, layer of silica gel 4,5 and of aluminium foil layer Silica membrane layer 6 is cascading from bottom to top.In adjacent substrates 1, polytetrafluoroethylene film layer 3, layer of silica gel 4 and aluminium It is compound by not peelable type adhesive hot pressing between layers of foil 5.By peelable between aluminium foil layer 5 and silica membrane layer 6 The adherency of type adhesive.It can be determined in use process, if remove silica membrane layer 6 according to radiating requirements.It is poly- The material of tetrafluoroethene film layer 3 is polytetrafluoroethylene film.Component is provided on substrate 1 and polytetrafluoroethylene film layer 3 Hole.In the lower surface of substrate 1, adherency is provided with pressure-sensitive adhesive layer 2.Layer of silica gel 4 is made of silica gel；It is filled in member apertures and silicon The silica gel that glue-line 4 connects.The effect in set parts hole is the electronic working component contact made on soft silica gel and electronic product, Pressure-sensitive adhesive is attached to around electronic working component, not with electronic working component contact.Such design helps to improve heat dissipation Efficiency, good damping effect, while when removing the utility model, electronic working component will not be torn, is convenient for repairing.

The upper surface of layer of silica gel 4 is provided with positioning convex point 7.Be provided on aluminium foil layer 5 and silica membrane layer 6 with The location hole that positioning convex point 7 cooperates.Aluminium foil layer 5 is made of aluminium foil；Heat discoloration ink is coated in the upper surface of aluminium foil layer 5. Silica membrane layer 6 is made of transparent silica membrane.Setting positioning convex point 7 be easy for silica membrane layer 6 into Row positioning pastes.

In order to facilitate use, release film is covered on 2 surface of pressure-sensitive adhesive layer.

In order to improve the shaded effect of the utility model, black out ink is coated in the upper surface of substrate 1.

In order to improve the surfacecti proteon performance and wear-resisting property of the utility model, silica membrane layer 6 with a thickness of 0.1-0.15mm。

In order to guarantee the heat dissipation effect of the utility model, the thickness of substrate 1 is unsuitable blocked up, and substrate 1 is by PVC or PET material Be made, substrate 1 with a thickness of 0.05-0.12mm.

By above-mentioned specific embodiment, the beneficial effects of the utility model are: the utility model is structurally reasonable, have good Electromagnetic shielding performance and heat dissipation performance, while silica membrane layer 6 is bonded using peelable type adhesive, is being overheated Under state, silica membrane layer 6 can be removed, flexibility is good, and using effect is good.

The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The widest scope consistent with features of novelty.

Claims (6)

1. a kind of NEW TYPE OF COMPOSITE mylar film, which is characterized in that including substrate, polytetrafluoroethylene film layer, layer of silica gel, aluminium foil layer and Silica membrane layer；The substrate, polytetrafluoroethylene film layer, layer of silica gel, aluminium foil layer and silica membrane layer from it is lower to On be cascading；By not peelable between the adjacent substrate, polytetrafluoroethylene film layer, layer of silica gel and aluminium foil layer Type adhesive hot pressing is compound；It is adhered between the aluminium foil layer and silica membrane layer by peelable type adhesive；It is described poly- The material of tetrafluoroethene film layer is polytetrafluoroethylene film；Component is provided on the substrate and polytetrafluoroethylene film layer Hole；In the lower surface of the substrate, adherency is provided with pressure-sensitive adhesive layer；The layer of silica gel is made of silica gel；It is filled out in the member apertures Filled with the silica gel being connect with the layer of silica gel；The upper surface of the layer of silica gel is provided with positioning convex point；In the aluminium foil layer and The location hole with positioning convex point cooperation is provided on silica membrane layer；The aluminium foil layer is made of aluminium foil；Described The upper surface of aluminium foil layer is coated with heat discoloration ink；The silica membrane layer is made of transparent silica membrane.

2. NEW TYPE OF COMPOSITE mylar film according to claim 1, which is characterized in that the pressure-sensitive adhesive layer surface be covered with from Type film.

3. NEW TYPE OF COMPOSITE mylar film according to claim 1, which is characterized in that be coated with and hide in the upper surface of the substrate Light ink.

4. NEW TYPE OF COMPOSITE mylar film according to claim 3, which is characterized in that the silica membrane layer with a thickness of 0.1-0.15mm。

5. NEW TYPE OF COMPOSITE mylar film according to claim 3, which is characterized in that the substrate is by PVC or PET material system At.

6. NEW TYPE OF COMPOSITE mylar film according to claim 5, which is characterized in that the substrate with a thickness of 0.05- 0.12mm。