High-temperature-resistant hot melt adhesive film

Abstract

The utility model relates to the technical field of hot melt adhesive films, and discloses a high-temperature-resistant hot melt adhesive film which comprises a hot melt adhesive film body, the hot melt adhesive film body is composed of an upper hot-pressing bonding layer, a toughening layer, a PU tear-resistant layer, high-temperature-resistant curing glue, a waterproof layer and a lower hot-pressing bonding layer, the PU tear-resistant layer is arranged on the surface layer of the top of the waterproof layer, the space between the PU tear-resistant layer and the waterproof layer is filled with the high-temperature-resistant curing glue, and a high-temperature-resistant fiber net is horizontally arranged in the high-temperature-resistant curing glue; the hot melt adhesive film has a certain tensile effect, is not easy to break, has strong thermal stability, is resistant to high temperature, reduces heat transfer at a bonding part, and has good tear strength and elasticity.

Description

Technical Field

[0001] The utility model relates to the technical field of hot melt adhesive films, and particularly relates to a high-temperature resistant hot melt adhesive film. Background Art

[0002] The hot melt adhesive film is a film product with or without release paper, which can be conveniently operated continuously or intermittently. It can be widely used for bonding various fabrics, papers, polymer materials and metals. When applied to fabrics, it is mainly used for bonding between structural layers of various textile materials such as nylon fabrics, polyester fabrics, blends, pure cotton, and leather.

[0003] The previous hot melt adhesive films have the following disadvantages: 1. The hot melt adhesive film does not have a certain anti-tensile effect during hot pressing, is easy to break, has poor thermal stability, is not resistant to high temperature, cannot reduce the heat transfer at the bonding place, and does not have good tear resistance and elasticity. Therefore, those skilled in the art provide a high-temperature resistant hot melt adhesive film to solve the problems raised in the above background art. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a high-temperature resistant hot melt adhesive film to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A high-temperature resistant hot melt adhesive film, comprising a hot melt adhesive film body;

[0007] The hot melt adhesive film body is composed of an upper hot pressing bonding layer, a toughening layer, a PU tear-resistant layer, a high-temperature resistant curing glue, a waterproof layer and a lower hot pressing bonding layer. A PU tear-resistant layer is arranged on the top surface layer of the waterproof layer, and a high-temperature resistant curing glue is filled between the PU tear-resistant layer and the waterproof layer. A high-temperature resistant fiber mesh is horizontally arranged in the high-temperature resistant curing glue. The high-temperature resistant fiber mesh is specifically woven by silicon carbide fiber filaments and glass fiber filaments. An upper hot pressing bonding layer is arranged on the top surface layer of the PU tear-resistant layer, and a toughening layer is arranged between the upper hot pressing bonding layer and the PU tear-resistant layer. A lower hot pressing bonding layer is arranged on the bottom surface layer of the waterproof layer.

[0008] As a further scheme of the utility model: The top surface layer and the bottom surface layer of the hot melt adhesive film body are coated with a surface coating layer, and the surface coating layer is specifically an asphalt adhesion layer. Using the surface coating layer as an asphalt adhesion layer greatly improves the adhesion strength, has a good adhesion effect and is not easy to fall off.

[0009] As a further scheme of the utility model: The upper hot pressing bonding layer and the lower hot pressing bonding layer are specifically made of TPU materials.

[0010] As a further solution of the present utility model: the toughening layer is specifically made of POE plastic material, which can increase the toughness of the hot melt adhesive film body, improve the adhesion effect, and thus enhance the service performance of the hot melt adhesive film body.

[0011] As a further solution of the present utility model: the high-temperature resistant curing glue is specifically a polypropylene curing glue layer.

[0012] As a further solution of the present utility model: the waterproof layer is specifically a PVC waterproof film layer.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. The upper hot pressing adhesive layer and the lower hot pressing adhesive layer are specifically made of TPU material, which has a low melting point. After hot pressing, the film body becomes soft, facilitating the bonding of each structural layer of the fabric. The surface coating layer, specifically the asphalt adhesion layer, greatly improves the adhesion strength, has a good bonding effect, is not easy to fall off. The polypropylene curing glue layer is heat-resistant and anti-aging, and limits the high-temperature resistant fiber mesh. Since the high-temperature resistant fiber mesh is woven from silicon carbide fiber filaments and glass fiber filaments, the hot melt adhesive film body has a certain anti-tensile effect, is not easy to break, has strong thermal stability, is heat-resistant, and reduces the heat transfer at the bonding part.

[0015] 2. The PU anti-tear layer has excellent repeated flexing performance, good tear resistance strength and elasticity. The toughening layer is specifically made of POE plastic material, which can increase the toughness of the hot melt adhesive film body, improve the adhesion effect, and thus enhance the service performance of the hot melt adhesive film body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a high-temperature resistant hot melt adhesive film of the present utility model.

[0017] Figure 2 It is a schematic diagram of the surface coating layer structure of a high-temperature resistant hot melt adhesive film of the present utility model.

[0018] Figure 3 It is a schematic diagram of the material composition structure of the high-temperature resistant fiber mesh of a high-temperature resistant hot melt adhesive film of the present utility model.

[0019] In the figure: 1, hot melt adhesive film body; 2, upper hot pressing adhesive layer; 3, toughening layer; 4, PU anti-tear layer; 5, high-temperature resistant curing glue; 6, waterproof layer; 7, lower hot pressing adhesive layer; 8, surface coating layer; 9, silicon carbide fiber filament; 10, glass fiber filament; 11, high-temperature resistant fiber mesh. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-3 , in the embodiment of the present invention, a high-temperature resistant hot melt adhesive film includes a hot melt adhesive film body 1;

[0022] The hot melt adhesive film body 1 is composed of an upper hot pressing adhesive layer 2, a toughening layer 3, a PU anti-tearing layer 4, a high-temperature resistant curing adhesive 5, a waterproof layer 6, and a lower hot pressing adhesive layer 7. A PU anti-tearing layer 4 is provided on the top surface layer of the waterproof layer 6, and a high-temperature resistant curing adhesive 5 is filled between the PU anti-tearing layer 4 and the waterproof layer 6. A high-temperature resistant fiber mesh 11 is horizontally arranged in the high-temperature resistant curing adhesive 5. The high-temperature resistant fiber mesh 11 is specifically woven by silicon carbide fiber filaments 9 and glass fiber filaments 10. An upper hot pressing adhesive layer 2 is provided on the top surface layer of the PU anti-tearing layer 4, and a toughening layer 3 is provided between the upper hot pressing adhesive layer 2 and the PU anti-tearing layer 4. A lower hot pressing adhesive layer 7 is provided on the bottom surface layer of the waterproof layer 6.

[0023] Among them, surface coating layers 8 are coated on the top surface layer and the bottom surface layer of the hot melt adhesive film body 1. The surface coating layer 8 is specifically an asphalt adhesion layer; by using the surface coating layer 8 as an asphalt adhesion layer, the adhesion strength is greatly improved, the adhesion effect is good, and it is not easy to fall off.

[0024] Among them, the upper hot pressing adhesive layer 2 and the lower hot pressing adhesive layer 7 are specifically made of TPU material; the melting point is low, and the film body becomes soft after hot pressing, which is convenient for bonding each structural layer of the fabric.

[0025] Among them, the toughening layer 3 is specifically made of POE plastic material; it can increase the toughness of the hot melt adhesive film body 1, increase the sticking effect, and thus improve the use performance of the hot melt adhesive film body 1.

[0026] Among them, the high-temperature resistant curing adhesive 5 is specifically a polypropylene curing adhesive layer; by using the polypropylene curing adhesive layer with high temperature resistance and anti-aging properties, the high-temperature resistant fiber mesh 11 is limited.

[0027] Among them, the waterproof layer 6 is specifically a PVC waterproof film layer; the PVC waterproof film layer has a remarkable waterproof effect and increases the anti-seepage effect of the hot melt adhesive film body 1 in the adhesion process.

[0028] The working principle of the present utility model is as follows: The upper hot-pressing adhesive layer 2 and the lower hot-pressing adhesive layer 7 are specifically made of TPU material, which has a low melting point. After hot pressing, the film body becomes soft, facilitating the bonding of each structural layer of the fabric. The surface coating layer 8, specifically the asphalt adhesion layer, greatly improves the adhesion strength, with good adhesion effect and not easy to fall off. The polypropylene curing adhesive layer is resistant to high temperature and aging, and limits the high-temperature resistant fiber mesh 11. Since the high-temperature resistant fiber mesh 11 is woven from silicon carbide fiber filaments 9 and glass fiber filaments 10, the hot melt adhesive film body 1 has a certain anti-tensile effect, is not easy to break, has strong thermal stability, is resistant to high temperature, and reduces the heat transfer at the bonding site. The PU anti-tearing layer 4 has excellent repeated flexing performance, good anti-tearing strength and elasticity. The toughening layer 3 is specifically made of POE plastic material, which can increase the toughness of the hot melt adhesive film body 1 and enhance the adhesion effect, thereby improving the service performance of the hot melt adhesive film body 1.

[0029] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes, should be covered by the protection scope of the present utility model.

Claims

1. A high temperature resistant hot melt adhesive film, comprising a hot melt adhesive film body (1); It is characterized by: The hot melt adhesive film body (1) is composed of an upper hot pressing adhesive layer (2), a toughening layer (3), a PU tear-resistant layer (4), a high temperature resistant curing adhesive (5), a waterproof layer (6) and a lower hot pressing adhesive layer (7); the top surface layer of the waterproof layer (6) is provided with a PU tear-resistant layer (4), and the space between the PU tear-resistant layer (4) and the waterproof layer (6) is filled with the high temperature resistant curing adhesive (5); a high temperature resistant fiber mesh (11) is horizontally arranged in the high temperature resistant curing adhesive (5); the high temperature resistant fiber mesh (11) is specifically woven from silicon carbide fiber filaments (9) and glass fiber filaments (10); the top surface layer of the PU tear-resistant layer (4) is provided with an upper hot pressing adhesive layer (2), and the toughening layer (3) is provided between the upper hot pressing adhesive layer (2) and the PU tear-resistant layer (4); and the bottom surface layer of the waterproof layer (6) is provided with a lower hot pressing adhesive layer (7).

2. The high temperature resistant hot melt adhesive film according to claim 1, characterized in that: The top surface layer and the bottom surface layer of the hot melt adhesive film body (1) are coated with a surface coating layer (8), and the surface coating layer (8) is specifically an asphalt adhesion layer.

3. The high temperature resistant hot melt adhesive film according to claim 1, characterized in that: The upper hot pressing adhesive layer (2) and the lower hot pressing adhesive layer (7) are specifically made of TPU material.

4. The high temperature resistant hot melt adhesive film according to claim 1, characterized in that: The toughening layer (3) is specifically made of POE plastic material.

5. The high temperature resistant hot melt adhesive film according to claim 1, characterized in that: The high temperature resistant curing adhesive (5) is specifically a polypropylene curing adhesive layer.

6. The high temperature resistant hot melt adhesive film according to claim 1, characterized in that: The waterproof layer (6) is specifically a PVC waterproof membrane layer.

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