Hot melt adhesive net film with high insulating property and preparation method of hot melt adhesive net film

Abstract

The invention discloses a hot melt adhesive net film with high insulation performance and a preparation method thereof.The hot melt adhesive net film with the high insulation performance structurally comprises a hot melt adhesive layer, dense insulation layers are arranged on the upper surface and the lower surface of the hot melt adhesive layer respectively, and smooth layers are polished on the surfaces of the insulation layers; the density of the insulating layer is high through the dense insulating layer, insulating performance is achieved, abrasion resistance is improved, meanwhile, the smooth layer is arranged on the surface of the insulating layer, friction force in contact with the outside world is reduced, abrasion resistance is further improved, abrasion resistance of the insulating layer is improved, and the insulating layer is particularly suitable for being used in a severe environment, so that the service life of the insulating layer is prolonged. And the insulating layer can be effectively protected, so that the insulating property of the hot melt adhesive film is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of hot melt adhesive film production, and more specifically, to a hot melt adhesive web film with high insulation performance and a preparation method thereof. Background Art

[0002] Hot melt adhesive film is a thin film formed by coating hot melt adhesive on a substrate. Different types of hot melt adhesive films have different application fields in life. Among them, insulating flooring is one of the application fields of hot melt adhesive film. This kind of hot melt adhesive film needs to have good insulation performance to prevent long-term weak electricity and humid environment. However, the wear resistance of this hot melt adhesive film is relatively poor. Once the insulating layer is damaged, the insulation performance of the hot melt adhesive film will decrease. Summary of the invention

[0003] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a hot melt adhesive web film with high insulation performance and a preparation method thereof.

[0004] To achieve the above objectives, the present invention provides a hot melt adhesive mesh with high insulation performance, whose structure includes a hot melt adhesive layer. The innovation lies in that the upper and lower surfaces of the hot melt adhesive layer are respectively provided with dense insulation layers, and the surface of the insulation layer is polished with a smooth layer.

[0005] Furthermore, the insulating layer is cross-linked polyethylene.

[0006] The present invention provides a method for preparing a hot melt adhesive web film with high insulation performance, which specifically comprises the following steps: S1, preparing a hot melt adhesive layer: mixing, polymerizing, extruding, melt-blowing and spinning a thermoplastic resin, a lubricant and an anticoagulant in sequence to obtain a hot melt adhesive layer; S2. Preparation of an insulating layer: placing the molten cross-linked polyethylene in a mold for cooling and molding, wherein the pressure inside the mold is 60MP-100MP, to obtain a dense insulating layer; S3, polishing: grinding and polishing one side of the insulating layer; S4. Bond the ground and polished insulating layer to the upper and lower surfaces of the hot melt adhesive layer.

[0007] Furthermore, in step S3, one side of the insulating layer is preferentially heated with steam, and then ground and polished.

[0008] Furthermore, the temperature of steam heating is 80°C-90°C.

[0009] Technical effects and advantages of the present invention: The present invention makes the density of the insulating layer itself relatively high through a dense insulating layer, which not only has insulating properties, but also increases wear resistance. At the same time, the surface of the insulating layer has a smooth layer, which reduces the friction in contact with the outside world, thereby further improving the wear resistance. The increased wear resistance of the insulating layer can effectively protect the insulating layer, especially when used in harsh environments, thereby ensuring the insulating properties of the hot melt adhesive film. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a side structural diagram of the hot melt adhesive film of the present invention. DETAILED DESCRIPTION

[0011] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0012] like Figure 1 It is a specific embodiment of the present invention, and its structure includes a hot melt adhesive layer 1, and the upper surface and the lower surface of the hot melt adhesive layer 1 are respectively provided with a dense insulation layer 2, and the surface of the insulation layer 2 is polished with a smooth layer 3.

[0013] In the present invention, the dense insulating layer 2 makes the density of the insulating layer 2 itself relatively high, which not only has insulating properties, but also increases wear resistance. At the same time, the surface of the insulating layer 2 has a smooth layer 3, which reduces the friction with the outside world and further improves the wear resistance. The increased wear resistance of the insulating layer 2 can effectively protect the insulating layer 2, especially when used in harsh environments, thereby ensuring the insulating properties of the hot melt adhesive film.

[0014] In the present invention, as a preferred embodiment, the insulating layer 2 is made of cross-linked polyethylene.

[0015] The present invention provides a method for preparing a hot melt adhesive web film with high insulation performance, which specifically comprises the following steps: S1, preparing a hot melt adhesive layer 1: mixing, polymerizing, extruding, melt-blowing and spinning a thermoplastic resin, a lubricant and an anticoagulant in sequence to obtain a hot melt adhesive layer 1; S2, preparing the insulating layer 2: placing the cross-linked polyethylene in a molten state in a mold for cooling and molding, wherein the pressure inside the mold is 60MP-100MP, to obtain a dense insulating layer 2; S3, polishing: grinding and polishing one side of the insulating layer 2; S4, bonding the ground and polished insulating layer 2 to the upper and lower surfaces of the hot melt adhesive layer 1.

[0016] In the present invention, by increasing the pressure inside the mold, the insulating layer 2 is made denser, thereby improving the wear resistance of the insulating layer 2.

[0017] In the present invention, in step S3, one side of the insulating layer 2 is preferentially heated with steam, and then ground and polished.

[0018] In the present invention, as a preferred embodiment, the temperature of steam heating is 80°C-90°C.

[0019] In the present invention, steam heating can soften the surface of the dense insulating layer 2, thereby improving the polishing effect and process accuracy.

[0020] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change; Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other; Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hot melt adhesive web with high insulation performance, comprising a hot melt adhesive layer (1), characterized in that: The upper surface and the lower surface of the hot melt adhesive layer (1) are respectively provided with a dense insulating layer (2), and the surface of the insulating layer (2) is polished to form a smooth layer (3).

2. The hot melt adhesive web with high insulation performance according to claim 1, characterized in that: The insulating layer (2) is cross-linked polyethylene.

3. The method for preparing a hot melt adhesive web with high insulation performance according to claim 1, characterized in that: The specific steps include: S1, preparing a hot melt adhesive layer (1): mixing, polymerizing, extruding, melt-blowing and spinning a thermoplastic resin, a lubricant and an anticoagulant in sequence to obtain a hot melt adhesive layer (1); S2, preparing an insulating layer (2): placing the molten cross-linked polyethylene in a mold for cooling and molding, wherein the pressure inside the mold is 60 MPa-100 MPa, to obtain a dense insulating layer (2); S3, polishing: grinding and polishing one side of the insulating layer (2); S4, bonding the ground and polished insulating layer (2) to the upper and lower surfaces of the hot melt adhesive layer (1).

4. The method for preparing a hot melt adhesive web with high insulation performance according to claim 3, characterized in that: In step S3, one side of the insulating layer (2) is preferentially heated using steam, and then ground and polished.

5. The method for preparing a hot melt adhesive web with high insulation performance according to claim 4, characterized in that: The temperature of steam heating is 80℃-90℃.

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