CN217173604U

CN217173604U - Polypropylene graphene composite heat-conducting film

Info

Publication number: CN217173604U
Application number: CN202123445718.6U
Authority: CN
Inventors: 马宝光; 胡敏锐; 何达帆; 卢家伟; 蔡倩莹
Original assignee: Jiangmen Guangrui New Material Technology Co ltd
Current assignee: Jiangmen Guangrui New Material Technology Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-08-12
Anticipated expiration: 2031-12-28

Abstract

The utility model belongs to the technical field of the combined material heat conduction, concretely relates to compound heat conduction membrane of polypropylene graphite alkene. The heat-conducting glue comprises a metal film, a graphene base body and a heat-conducting glue, wherein a plurality of holes are formed in the metal film, the metal film and the graphene base body are stacked and fixed relatively, the heat-conducting glue is arranged in the holes of the metal film, one end of the heat-conducting glue is connected with the graphene base body, the height of the other end of the heat-conducting glue is matched with the height of the side face, far away from the graphene base body, of the metal film, and the heat-conducting glue is bonded with the side face, far away from the graphene base body, of the metal film. The utility model provides a compound heat conduction membrane of polypropylene graphite alkene, the heat conduction is effectual, be convenient for paste, can satisfy the electrical insulation requirement.

Description

Polypropylene graphene composite heat-conducting film

Technical Field

The utility model belongs to the technical field of the combined material heat conduction, concretely relates to compound heat conduction membrane of polypropylene graphite alkene.

Background

In recent years, with miniaturization, weight reduction, and high performance of electronic equipment, the power density of electronic equipment has been increased, and the amount of heat per unit volume has become larger. The heating power of the electronic device is getting larger and larger, and if the temperature is too high, the service life and the stability of the electronic device are influenced. And the graphene can well solve the problems. Firstly, the graphene has excellent physical and chemical properties, and is in accordance with the development trend of light weight, high heat conduction and high temperature resistance of heat dissipation materials. Secondly, some components arranged on some electronic products need to be electrically insulated while radiating heat, so that the effect of electrical insulation is difficult to realize when the electronic products independently use graphene materials. Moreover, the heat-conducting adhesive generally uses silica gel as a base material, and is widely applied to electronic appliances, automobile machinery, computer hosts, notebook computers and heat dissipation modules, but the existing heat-conducting adhesive has poor heat-conducting effect and is inconvenient for adhering the heat-conducting adhesive. In view of the above problems, there is a need to develop a novel polypropylene graphene composite thermal conductive film.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art in the background art, the utility model provides a compound heat conduction membrane of polypropylene graphite alkene.

The utility model provides a compound heat conduction membrane of polypropylene graphite alkene, it includes metal film, graphite alkene base member and heat conduction glue, a plurality of holes have been seted up on the metal film, the metal film with the range upon range of setting of graphite alkene base member and relatively fixed, the heat conduction glue sets up the downthehole of metal film, the heat conduction glue one end with graphite alkene base member connects, the heat conduction glue other end highly with the high looks adaptation of the side of keeping away from graphite alkene base member of metal film, the side of keeping away from graphite alkene base member of heat conduction glue for bond.

Preferably, the metal film is made of one of silver, copper and aluminum, and the holes are arranged in an array form on the metal film.

Preferably, the polypropylene graphene composite heat conduction membrane further comprises a first release film, the first release film is located on the side surface, far away from the graphene substrate, of the metal film, and the first release film is connected with the metal film.

Preferably, the first release film is further provided with a pre-folding line, the first release film is folded into two parts through the pre-folding line, and the first release film is peeled from the metal film.

Preferably, the outer circumference of the first release film is formed with a protruding piece protruding outward than the outer circumference of the metal film, and the first release film is peeled off from the metal film by the protruding piece.

Preferably, the polypropylene graphene composite heat-conducting film further comprises an insulating layer, the insulating layer is located on the side face, far away from the metal film, of the graphene substrate, and the insulating layer and the graphene substrate are stacked and relatively fixed.

Preferably, the composite heat conducting film of polypropylene and graphene further comprises an adhesive layer and a second release film, wherein the adhesive layer and the second release film are both located on the insulating layer far away from the side face of the graphene substrate, the adhesive layer is located on the second release film and between the insulating layers, and the insulating layer is stacked and fixed with the second release film, the adhesive layer and the second release film.

Preferably, the periphery of the second release film is formed with a protruding piece protruding outwards than the periphery of the metal film, or the first release film is further provided with a pre-folding line.

Preferably, the insulating layer is made of one of an insulating heat-conducting silicone sheet, insulating heat-conducting resin and an insulating heat-conducting adhesive film.

The utility model provides a compound heat conduction membrane of polypropylene graphite alkene, the heat conduction is effectual, be convenient for paste, can satisfy the electrical insulation requirement.

Drawings

The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual size, emphasis instead being placed upon illustrating the subject matter.

Fig. 1 is a schematic structural diagram of a polypropylene graphene composite heat-conducting film provided in an embodiment of a pre-crease;

fig. 2 is a schematic structural diagram of a polypropylene graphene composite heat conduction film provided in an embodiment of a tab;

FIG. 3 is a schematic structural diagram of a first metal film according to an embodiment;

fig. 4 is a schematic structural diagram of a second metal film according to an embodiment.

In the figure: the first type membrane 1, metal film 2, heat conduction glue 3, graphite alkene base member 4, insulating layer 5, viscose layer 6, second are from type membrane 7, crease 8, lug 9 in advance.

Detailed Description

To facilitate an understanding of the present invention, the present invention will now be described more fully with reference to the accompanying drawings.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element and be integral therewith, or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like are used herein for illustrative purposes only.

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 herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to fig. 1-4, the utility model provides a compound heat conduction membrane of polypropylene graphite alkene, it includes metal film 2, graphite alkene base member 4 and heat conduction glue 3, a plurality of holes have been seted up on the metal film 2, metal film 2 and the range upon range of setting of graphite alkene base member 4 and relatively fixed, heat conduction glue 3 sets up downtheholely at metal film 2, heat conduction glue 3 one end is connected with graphite alkene base member 4, the height of the heat conduction glue 3 other end and metal film 2 keep away from the high looks adaptation of the side of graphite alkene base member 4, the side of keeping away from graphite alkene base member 4 of heat conduction glue 3, be used for bonding.

Referring to fig. 3-4, in a preferred embodiment, the metal film 2 is made of one of silver, copper and aluminum, and the holes on the metal film 2 are arranged in an array. The holes are generally square holes or round holes. The graphene substrate 4 has fast heat transfer, so that the heat-conducting film can realize temperature equalization fast, and the metal film 2 has large heat flow, so that the graphene substrate and the metal film can form a better complementary effect.

Referring to fig. 1 to 4, in a preferred embodiment, the polypropylene graphene composite thermal conductive film further includes a first release film 1, the first release film 1 is located on a side of the metal film 2 away from the graphene substrate 4, and the first release film 1 is connected to the metal film 2. Can protect heat-conducting glue 3 through first from type membrane 1, when needs, can peel off first from type membrane 1 from metal film 2 and heat-conducting glue 3, can paste dress.

Referring to fig. 1-2, in a preferred embodiment, two release film technologies are provided. In the first method (please refer to fig. 1), the first release film 1 is further provided with a pre-folding line 8, the first release film 1 is folded into two parts by the pre-folding line 8, and the first release film 1 is peeled from the metal film 2. In the second method (see fig. 2), a protruding piece 9 protruding outward is formed on the outer periphery of the first release film 1 compared with the outer periphery of the metal film 2, and the first release film 1 is peeled from the metal film 2 by the protruding piece 9. Through two kinds of type membrane technical scheme that leave, when needs, can peel off first from type membrane 1 from metal film 2, can paste dress convenient to use.

Referring to fig. 1 to 4, in a preferred embodiment, the polypropylene graphene composite thermal conductive film further includes an insulating layer 5, the insulating layer 5 is located on a side surface of the graphene substrate 4 away from the metal film 2, and the insulating layer 5 and the graphene substrate 4 are stacked and fixed relatively. Further, the insulating layer 5 is made of one of an insulating heat-conducting silicone sheet, insulating heat-conducting resin and an insulating heat-conducting glue 3 film. Insulating layer 5 cooperation metal film 2 and graphite alkene base member 4, realize the heat conduction effect, be convenient for paste the basis on, improve insulating properties simultaneously to satisfy some product electrical insulation's requirement.

Referring to fig. 1 to 4, in a preferred embodiment, the polypropylene graphene composite thermal conductive film further includes an adhesive layer 6 and a second release film 7, the adhesive layer 6 and the second release film 7 are both located on a side surface of the insulating layer 5 away from the graphene substrate 4, the adhesive layer 6 is located between the second release film 7 and the insulating layer 5, the adhesive layer 6 and the second release film 7 are stacked and fixed relatively. Through the design of viscose layer 6, can make the utility model discloses compound heat conduction membrane of polypropylene graphite alkene passes through viscose layer 6 and radiator cooperation.

Referring to fig. 1-2, in a preferred embodiment, the outer periphery of the second release film 7 is formed with a protruding tab 9 protruding outward than the outer periphery of the metal film 2, or the first release film 1 is further provided with a pre-folding line 8. The second release film 7 has the same structure as the first release film 1. The second release film 7 protects the adhesive layer 6 and can be peeled off as needed. In a further preferred scheme, the heat conducting glue 3 is viscous heat conducting silica gel, and the graphene substrate 4 is made of a polypropylene and graphene composite material. The polypropylene and graphene composite material comprises, by weight, 100 parts of polypropylene, 1-10 parts of modified graphene and 1-20 parts of rare earth complex, wherein the modified graphene contains amino and/or azide groups, the content of the amino and/or azide groups is 0.1% -5%, and the coordination number of the rare earth complex is 3-8. Please refer to the specific preparation method, chinese invention CN202011626576.0, a polypropylene composite material and its preparation method.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, reference to the description of the terms "preferred embodiment," "yet another embodiment," "other embodiments," or "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. The utility model provides a compound heat conduction membrane of polypropylene graphite alkene, its characterized in that, compound heat conduction membrane of polypropylene graphite alkene includes metal film, graphite alkene base member and heat conduction glue, a plurality of holes have been seted up on the metal film, the metal film with graphite alkene base member range upon range of setting and relatively fixed, heat conduction glue sets up in the downthehole of metal film, heat conduction glue one end with graphite alkene base member connects, the height of heat conduction glue other end with the metal film highly looks adaptation of the side of keeping away from graphite alkene base member, the side of keeping away from graphite alkene base member of heat conduction glue is used for bonding.

2. The polypropylene-graphene composite thermal conductive film according to claim 1, wherein the metal film is made of one of silver, copper and aluminum, and the holes are arranged in an array on the metal film.

3. The polypropylene-graphene composite thermal conductive film according to claim 1, further comprising a first release film, wherein the first release film is located on a side of the metal film away from the graphene substrate, and the first release film is connected to the metal film.

4. The polypropylene-graphene composite thermal conductive film according to claim 3, wherein the first release film is further provided with a pre-folding line, the first release film is folded into two parts through the pre-folding line, and the first release film is peeled from the metal film.

5. The polypropylene-graphene composite thermal conductive film according to claim 3, wherein a protruding piece protruding outward is formed on the outer periphery of the first release film compared with the outer periphery of the metal film, and the first release film is peeled from the metal film by the protruding piece.

6. The polypropylene-graphene composite thermal conductive film according to claim 3, further comprising an insulating layer on a side of the graphene substrate away from the metal film, wherein the insulating layer is laminated on and fixed relative to the graphene substrate.

7. The graphene composite thermal film according to claim 6, further comprising an adhesive layer and a second release film, wherein the adhesive layer and the second release film are both located on a side of the insulating layer away from the graphene substrate, and the adhesive layer is located between the second release film and the insulating layer, the adhesive layer and the second release film are stacked and fixed relatively.

8. The polypropylene-graphene composite thermal conductive film according to claim 7, wherein a protruding piece protruding outwards is formed on the outer periphery of the second release film compared with the outer periphery of the metal film, or a pre-folding line is further formed on the first release film.

9. The polypropylene-graphene composite heat-conducting film according to claim 6, wherein the insulating layer is made of one of an insulating heat-conducting silicone sheet, an insulating heat-conducting resin and an insulating heat-conducting adhesive film.