CN215757120U

CN215757120U - Composite flame-retardant conductive silica gel

Info

Publication number: CN215757120U
Application number: CN202023250762.7U
Authority: CN
Inventors: 林秋燕; 黎海涛; 徐保
Original assignee: Dongguan Hanpin Electronics Co ltd
Current assignee: Dongguan Hanpin Electronics Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2022-02-08
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses a composite flame-retardant conductive silica gel, which comprises a conductive substrate, wherein the conductive substrate is provided with a first conductive and heat-conductive acrylic double-sided adhesive, one side of the first conductive and heat-conductive acrylic double-sided adhesive, which is far away from the conductive substrate, is provided with a first silica gel treatment layer, one side of the first silica gel treatment layer, which is far away from the first conductive and heat-conductive acrylic double-sided adhesive, is provided with a first flame-retardant conductive silica gel, the structure has double advantages after compounding the flame-retardant conductive silica gel and a copper foil, so that the composite flame-retardant conductive silica gel has good compressibility, shock absorption efficiency, ultralow resistance and electromagnetic shielding superposition efficiency, has good flame-retardant effect and surface compatibility, and has self-stickiness on a single surface, so that the composite flame-retardant conductive silica gel has excellent operation performance, can be used between a heat dissipation and conduction element and a metal substrate, and has good conductive performance and shielding efficiency besides the problem of heat dissipation and conduction in materials, therefore, the electromagnetic shielding device can be applied to the fields of game handles, electromagnetic shielding occasions, keys and the like, and has wide application prospect.

Description

Composite flame-retardant conductive silica gel

Technical Field

The utility model relates to the field of electronic industry, in particular to composite flame-retardant conductive silica gel.

Background

The conductive silicone rubber is mainly used for sealing and electromagnetic shielding. The product can be molded or extruded, and can be made into sheets or other punching shapes, and the current conductive silica gel mainly has the following problems:

1. the common conductive silica gel is easy to damage in thickness and low in strength.

2. The pure copper foil has no surface adhesiveness, no compressibility and no shock absorption, the product has high hardness and limited use thickness, and the problem cannot be well solved in a special application scene.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide the composite flame-retardant conductive silica gel with good compressibility and damping efficiency.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a compound fire-retardant electrically conductive silica gel, includes electrically conductive base member, electrically conductive base member is provided with first electrically conductive heat conduction type ya keli double faced adhesive tape, first electrically conductive heat conduction type ya keli double faced adhesive tape is kept away from electrically conductive base member one side and is provided with first silica gel and handles the layer, first silica gel is handled the layer and is kept away from first electrically conductive heat conduction type ya keli double faced adhesive tape one side and is provided with first fire-retardant type electrically conductive silica gel.

Further, the method comprises the following steps: the first flame-retardant conductive silica gel is provided with a release film on one side far away from the first silica gel treatment layer.

Further, the method comprises the following steps: the conductive matrix is copper foil, conductive cloth or aluminum foil.

Further, the method comprises the following steps: the thickness of the conductive substrate is 0.01 mm-0.2 mm.

Further, the method comprises the following steps: the thickness of the first silica gel treatment layer is 2um ~ 3 um.

Further, the method comprises the following steps: the thickness of the conductive silica gel is 0.1 mm-15 mm.

Further, the method comprises the following steps: the conductive substrate is away from first electrically conductive heat conduction type ya keli double faced adhesive tape one side and has set gradually electrically conductive heat conduction type ya keli double faced adhesive tape, second silica gel processing layer and the fire-retardant type electrically conductive silica gel of second.

The utility model has the beneficial effects that: the structure has double advantages after compounding the flame-retardant conductive silica gel and the copper foil, thereby having good compressibility, shock absorption efficiency, ultralow resistance and electromagnetic shielding superposition efficiency, good flame-retardant effect, good surface compatibility, and single surface with viscosity, thereby having excellent operation performance.

Drawings

Fig. 1 is a schematic view of composite flame-retardant conductive silica gel.

Labeled as: the conductive substrate comprises a conductive substrate 1, a first conductive and heat-conductive acrylic double-sided adhesive 2, a first silica gel treatment layer 3, a first flame-retardant conductive silica gel 4 and a release film 5.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, a compound flame-retardant conductive silica gel, including conductive base 1, conductive base 1 is provided with first conductive heat conduction type ya keli double faced adhesive tape 2, first conductive heat conduction type ya keli double faced adhesive tape 2 keeps away from conductive base 1 one side and is provided with first silica gel processing layer 3, first silica gel processing layer 3 keeps away from first conductive heat conduction type ya keli double faced adhesive tape 2 one side and is provided with first fire-retardant type conductive silica gel 4, first fire-retardant type conductive silica gel 4 keeps away from first silica gel processing layer 3 one side and is provided with from type membrane 5

The conductive substrate 1 is made of conductive materials such as copper foil, conductive cloth or aluminum foil, the thickness of the conductive substrate 1 is 0.01 mm-0.2 mm, and the conductive substrate is preferably made of copper foil in the embodiment and has good heat dissipation and shielding effects;

the thickness of the first silica gel processing layer 3 is 2-3 um, and the silica gel processing layer can enhance the adhesion between the copper foil and the non-substrate conductive and heat-conductive acrylic double-sided adhesive film surface and the flame-retardant conductive silica gel, so that the bonding is firmer;

the total thickness of the composite flame-retardant conductive silica gel is 0.1-15 mm;

the structure has double advantages after compounding the flame-retardant conductive silica gel and the copper foil, thereby having good compressibility, shock absorption efficiency, ultralow resistance and electromagnetic shielding superposition efficiency, good flame-retardant effect, good surface compatibility, and single surface with viscosity, thereby having excellent operation performance.

On the basis, electrically conductive base member 1 keeps away from 2 one side of first electrically conductive heat conduction type ya keli double faced adhesive tape and has set gradually the electrically conductive heat conduction type ya keli double faced adhesive tape of second, layer and the fire-retardant type electrically conductive silica gel of second are handled to second silica gel, and its compression shock attenuation effect can further be strengthened in the setting of the electrically conductive silica gel of the fire-retardant type of two-sided.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The composite flame-retardant conductive silica gel is characterized in that: including electrically conductive base member (1), electrically conductive base member (1) is provided with first electrically conductive heat conduction type ya keli double faced adhesive tape (2), electrically conductive base member (1) one side is kept away from in first electrically conductive heat conduction type ya keli double faced adhesive tape (2) and is provided with first silica gel and handles layer (3), first electrically conductive heat conduction type ya keli double faced adhesive tape (2) one side is kept away from in first silica gel processing layer (3) and is provided with first fire-retardant type electrically conductive silica gel (4), electrically conductive base member (1) is kept away from first electrically conductive heat conduction type ya keli double faced adhesive tape (2) one side and is set gradually the electrically conductive heat conduction type ya keli double faced adhesive tape of second, second silica gel and handles layer and the fire-retardant type electrically conductive silica gel of second.

2. The composite flame-retardant conductive silica gel according to claim 1, wherein: one side of the first flame-retardant conductive silica gel (4) far away from the first silica gel treatment layer (3) is provided with a release film (5).

3. The composite flame-retardant conductive silica gel according to claim 1, wherein: the conductive substrate (1) is copper foil, conductive cloth or aluminum foil.

4. The composite flame-retardant conductive silica gel according to claim 1, wherein: the thickness of the conductive substrate (1) is 0.01 mm-0.2 mm.

5. The composite flame-retardant conductive silica gel according to claim 1, wherein: the thickness of the first silica gel treatment layer (3) is 2 um-3 um.

6. The composite flame-retardant conductive silica gel according to claim 1, wherein: the thickness of the conductive silica gel is 0.1 mm-15 mm.