Venting adhesive with heat dissipation

Abstract

The utility model relates to back adhesive technology field discloses the heat dissipation type breathable back adhesive, including polyester film, the polyester film top is provided with the heat conducting filler layer, is provided with the adhesive layer one between heat conducting filler layer with polyester film, heat conducting filler layer top is provided with graphite sheet, graphite sheet top is provided with the breathable microporous structure layer, the breathable microporous structure layer top is provided with adhesive layer two, heat conducting filler layer inside includes graphite sheet and boron nitride powder, graphite sheet with boron nitride powder is pasted together. In the utility model, through the high heat conduction performance of graphite sheet and boron nitride powder, the heat is conducted fast, and the intercommunication micropore of breathable microporous structure layer lets the air circulation and carries away the heat, and the heat dissipation problem is solved efficiently. The adhesive layer guarantees the close connection of each layer, maintains the stable overall structure, finally makes the object of being pasted stable operation under the suitable temperature, guarantees the normal use of relevant equipment or product.

Description

Technical Field

[0001] This utility model relates to the field of adhesive technology, and in particular to a heat-dissipating and breathable adhesive. Background Technology

[0002] Adhesive backing is a widely used adhesive for bonding various materials, playing a crucial role in industrial production, daily life, and numerous other fields. It can firmly connect objects of different materials, is easy to use, and has a wide range of applications, such as fixing components in electronic device assembly and bonding decorative materials in building decoration.

[0003] Common adhesives mainly consist of an adhesive matrix, a curing agent (for adhesives requiring curing), and additives. The adhesive matrix is ​​the core component, such as acrylates and silicones, providing basic bonding strength. The curing agent transforms the adhesive from a liquid or flowable state into a solid state, enhancing bond strength. Additives include plasticizers to improve flexibility; fillers to increase strength and reduce cost; and antioxidants to extend service life.

[0004] Traditional adhesives are primarily composed of high-molecular-weight polymers, which form a dense, continuous molecular structure during curing. The molecules are tightly packed, leaving no gaps for gas to pass through. Furthermore, additives do not create ventilation channels, further reinforcing this density. This lack of air permeability leads to the accumulation of internal moisture in the bonded object during use, causing problems such as material deformation, mold growth, and delamination. In electronic devices, the inability to dissipate heat through airflow can cause components to overheat, affecting device performance and lifespan. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a heat-dissipating and breathable adhesive backing, which aims to improve the problem that traditional non-breathable adhesive backings cause moisture to accumulate in the adhered object during use, leading to material deformation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a heat-dissipating and breathable adhesive backing, comprising a polyester film, a thermally conductive filler layer disposed on the top of the polyester film, an adhesive layer one disposed between the thermally conductive filler layer and the polyester film, a graphite sheet disposed on the top of the thermally conductive filler layer, a breathable microporous structure layer disposed on the top of the graphite sheet, and an adhesive layer two disposed on the top of the breathable microporous structure layer.

[0007] Furthermore, the thermally conductive filler layer includes graphite sheets and boron nitride powder, with the graphite sheets and boron nitride powder bonded together.

[0008] Furthermore, the thickness of the polyester film is 50 μm.

[0009] Furthermore, the thickness of the thermally conductive filler layer is 50 μm.

[0010] Furthermore, the breathable microporous structure layer is bonded to the thermally conductive filler layer.

[0011] This utility model has the following beneficial effects:

[0012] 1. In this invention, the high thermal conductivity of graphite sheets and boron nitride powder enables rapid heat conduction; the interconnected micropores of the breathable microporous structure layer allow air circulation to carry away heat, effectively solving the heat dissipation problem. The adhesive layer ensures a tight connection between the layers, maintaining the stability of the overall structure, ultimately enabling the adhered object to operate stably at a suitable temperature, ensuring the normal use of related equipment or products. Attached Figure Description

[0013] Figure 1 This is a perspective view of the heat-dissipating and breathable adhesive backing proposed in this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the heat-dissipating and breathable adhesive backing proposed in this utility model;

[0015] Figure 3 A three-dimensional view of the thermally conductive filler layer of the heat-dissipating and breathable adhesive backing proposed in this utility model;

[0016] Figure 4 This is a schematic diagram of the breathable microporous structure layer of the heat-dissipating and breathable adhesive backing proposed in this utility model.

[0017] Legend:

[0018] 1. Polyester film; 2. Thermally conductive filler layer; 3. Adhesive layer one; 4. Graphite sheet; 5. Boron nitride powder; 6. Breathable microporous structure layer; 7. Adhesive layer two. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Reference Figures 1-4An embodiment of this utility model provides a heat-dissipating and breathable adhesive backing, comprising a polyester film 1, a thermally conductive filler layer 2 disposed on the top of the polyester film 1, an adhesive layer 3 disposed between the thermally conductive filler layer 2 and the polyester film 1, a graphite sheet 4 disposed on the top of the thermally conductive filler layer 2, a breathable microporous structure layer 6 disposed on the top of the graphite sheet 4, and an adhesive layer 7 disposed on the top of the breathable microporous structure layer 6. The thermally conductive filler layer 2 contains graphite sheet 4 and boron nitride powder 5, which are bonded together. The thickness of the polyester film 1 is 50 μm, the thickness of the thermally conductive filler layer 2 is 50 μm, and the breathable microporous structure layer 6 is bonded together with the thermally conductive filler layer 2.

[0021] Specifically, when the heat-dissipating and breathable adhesive is in operation, once heat is generated, the 50μm thick polyester film 1 first acts as a base layer support. It has good flexibility and dimensional stability, and the heat is quickly conducted to the thermally conductive filler layer 2, which is also 50μm thick. Graphite sheets 4 and boron nitride powder 5 are bonded within this layer. Graphite sheets 4, with their ultra-high thermal conductivity, can quickly conduct heat along the plane, while boron nitride powder 5 is both thermally conductive and insulating. Together, they quickly transfer heat away. At the same time, the interconnected micropores in the breathable microporous structure layer 6 allow air to circulate freely. The flowing air carries away heat and continuously dissipates, achieving efficient heat dissipation. Adhesive layer 1 3 and adhesive layer 2 7 ensure that all layers are tightly connected, guaranteeing the overall structural stability of the adhesive. Heat is continuously conducted and dissipated, and air continues to circulate, effectively solving the heat dissipation problem and helping the adhered object to operate stably at a suitable temperature.

[0022] Working Principle: When the heat-dissipating and breathable adhesive is in operation, heat is generated. The polyester film 1 acts as a base layer, and the heat is conducted to the thermally conductive filler layer 2 connected to it. The graphite sheets 4 and boron nitride powder 5 bonded within the layer exert their high thermal conductivity, quickly transferring heat away. Simultaneously, the interconnected micropores in the breathable microporous structure layer 6 allow air circulation, which carries away heat, achieving heat dissipation. Adhesive layer 3 and adhesive layer 7 ensure a tight bond between the layers, guaranteeing the overall structural stability of the adhesive. With this structure, heat is continuously conducted and dissipated, and air continues to circulate, effectively solving the heat dissipation problem and enabling the adhered object to operate stably at a suitable temperature.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat-dissipating and breathable adhesive backing, comprising a polyester film (1), characterized in that: A thermally conductive filler layer (2) is provided on the top of the polyester film (1), an adhesive layer (3) is provided between the thermally conductive filler layer (2) and the polyester film (1), a graphite sheet (4) is provided on the top of the thermally conductive filler layer (2), a breathable microporous structure layer (6) is provided on the top of the graphite sheet (4), and an adhesive layer (7) is provided on the top of the breathable microporous structure layer (6).

2. The heat-dissipating and breathable adhesive backing according to claim 1, characterized in that: The thermally conductive filler layer (2) includes graphite sheets (4) and boron nitride powder (5), and the graphite sheets (4) and the boron nitride powder (5) are bonded together.

3. The heat-dissipating and breathable adhesive backing according to claim 2, characterized in that: The polyester film (1) has a thickness of 50 μm.

4. The heat-dissipating and breathable adhesive backing according to claim 3, characterized in that: The thickness of the thermally conductive filler layer (2) is 50 μm.

5. The heat-dissipating and breathable adhesive backing according to claim 4, characterized in that: The breathable microporous structure layer (6) is bonded to the thermally conductive filler layer (2).

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