A tear resistant pe film

Abstract

The utility model relates to a kind of tear-resistant PE film, belong to PE film field, its structure includes PE base layer, elastic layer, reinforcing coating, the PE base layer is provided with at least one layer, the elastic layer is fixedly covered on the top surface of PE base layer, the elastic layer is equipped with the elastic covering portion that shape and connecting groove's recess completely match, the elastic covering portion is connected with the recess inner side of connecting groove;The reinforcing coating is coated in the top surface of elastic layer, the reinforcing coating bottom surface extends the reinforcing portion that shape and the recess of elastic covering portion completely match, the reinforcing portion is connected with the recess inner side of elastic covering portion;In PE base layer, setting reinforcing connection effect's connecting groove, with the elastic layer of having elastic covering portion is connected and cooperates, effectively prevent the case of interlayer separation when long-term use or under external force impact is prone to occur occurs, and reinforcing coating is coated on elastic layer, effectively improve the surface layer strength.

Description

Technical Field

[0001] This utility model is a tear-resistant PE film, belonging to the field of PE film. Background Technology

[0002] PE film refers to polyethylene film, a thin film material made of polyethylene. Depending on the processing method and performance requirements, PE film can be classified into different types, such as high-density polyethylene film, low-density polyethylene film, and linear low-density polyethylene film.

[0003] To improve tear resistance, existing PE films use an elastic layer directly on the PE film substrate, with the two connected and fixed together by a plane. However, this can easily lead to interlayer separation during long-term use or when subjected to external impact. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a tear-resistant PE film that solves the problem that existing PE films, in order to improve tear resistance, use an elastic layer directly placed on the PE film substrate, with the two connected and fixed to each other through a plane, which easily leads to interlayer separation under long-term use or external impact.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tear-resistant PE film, comprising a PE base layer, an elastic layer, and a reinforcing coating. The PE base layer has at least one layer. The elastic layer is fixedly covered on the top surface of the PE base layer. The elastic layer has an elastic covering portion whose shape perfectly matches the groove of the connecting groove, and the elastic covering portion is in contact with the inner side of the groove of the connecting groove. The reinforcing coating is applied to the top surface of the elastic layer, and the bottom surface of the reinforcing coating extends a reinforcing portion whose shape perfectly matches the groove of the elastic covering portion, and the reinforcing portion is in contact with the inner side of the groove of the elastic covering portion. To improve elasticity, a plurality of elastic bodies are provided within the reinforcing portion.

[0006] Furthermore, to improve the strength of the connection, the elastic cover and the elastic layer are an integrated structure, and the top surface of the elastic cover is pressed with a groove corresponding to the reinforcing part.

[0007] Furthermore, in order to improve the cushioning and impact resistance, the elastomer is either spherical or strip-shaped.

[0008] Furthermore, in order to uniformly distribute stress, the reinforcing coating is made of nano-silica dispersion, and its surface is provided with a recessed grid.

[0009] Furthermore, to improve the connection strength, several connection grooves are arranged into a mesh or grid structure.

[0010] Furthermore, to improve ductility, the cross-section of the connecting groove is a U-shaped structure with chamfered edges.

[0011] The beneficial effects of this utility model are: a connecting groove with a strengthening effect is set on the PE base layer, which connects and cooperates with the elastic layer with the elastic covering part, effectively preventing the layer separation from easily occurring during long-term use or under external impact. Furthermore, a reinforcing coating is applied to the elastic layer, which effectively improves the surface layer strength. Attached Figure Description

[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a structural schematic diagram of a tear-resistant PE film according to the present invention; Figure 2 This is a partial cross-sectional structural diagram of a tear-resistant PE film according to the present invention.

[0013] In the diagram: PE base layer-1, elastic layer-2, reinforcing coating-3, connecting groove-11, elastic cover-21, reinforcing part-31, elastomer-32, recessed grid-33. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments. Example 1

[0015] Please see Figure 1 , Figure 2 This utility model provides a tear-resistant PE film technical solution: its structure includes a PE base layer 1, an elastic layer 2, and a reinforcing coating 3. The PE base layer 1 is provided with one layer, and the top surface of the PE base layer 1 is provided with a plurality of connecting grooves 11. The connecting trench 11 is fabricated using a laser micro-etching process. A UV laser with a wavelength of 300-360 nm, pulse energy ≤50 μJ, and scanning speed of 200-500 mm / s is employed. The etching depth is precisely controlled within 10-30 μm to prevent localized cracking. The width of the connecting trench 11 is 50-100 μm. The elastic layer 2 is fixedly covered on the top surface of the PE base layer 1. The elastic layer 2 has an elastic covering part 21 whose shape completely matches the groove of the connecting groove 11. The elastic covering part 21 is in contact with the inner side of the groove of the connecting groove 11. The reinforcing coating 3 is coated on the top surface of the elastic layer 2. The bottom surface of the reinforcing coating 3 extends a reinforcing part 31 whose shape completely matches the groove of the elastic covering part 21. The reinforcing part 31 is in contact with the inner side of the groove of the elastic covering part 21.

[0016] Among them, the elastic layer 2 is a POE / PE blend modified film, and the elastomer 32 is a POE / PE blend modified particle. Both are made of known materials and are formed by extrusion of POE, metallocene M-LLDPE and PE. The elastic layer 2 and the PE base layer 1 are bonded to each other with a primerless two-component acrylic structural adhesive with a peel strength ≥2MPa.

[0017] To improve the strength of the connection, the elastic cover 21 and the elastic layer 2 are integrated into one structure, and the top surface of the elastic cover 21 is pressed with a groove corresponding to the reinforcing part 31.

[0018] To improve cushioning and impact resistance, the elastomer 32 is either spherical or strip-shaped, preferably spherical, for ease of processing.

[0019] In order to distribute stress evenly, the reinforcing coating 3 is made of nano-silica dispersion, and its surface is provided with recessed mesh 33, which is formed by pressing with an embossing roller.

[0020] To improve the connection strength, several connecting grooves 11 form a mesh structure.

[0021] To improve ductility, the cross-section of the connecting groove 11 is a U-shaped structure with chamfered edges.

[0022] To improve elasticity, a number of elastic bodies 32 are provided inside the reinforcing part 31.

[0023] A connecting groove 11 with a strengthening effect is provided on the PE base layer 1, which is connected and cooperates with the elastic layer 2 with the elastic cover part 21 to effectively prevent the layer separation from easily occurring during long-term use or when subjected to external impact. Furthermore, a reinforcing coating 3 is coated on the elastic layer 2 to effectively improve the puncture resistance. Example 2

[0024] For the sake of brevity, the parts that are the same as those in other embodiments will not be described again. The main focus here is on the structure that is different from other embodiments of this utility model. In this application, several connecting grooves 11 form a grid-like structure to improve the strength of the overall structure.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A tear-resistant PE film, characterized in that: Its structure includes a PE base layer (1), the PE base layer (1) has at least one layer, and the top surface of the PE base layer (1) is provided with several connecting grooves (11). An elastic layer (2) is fixedly covered on the top surface of the PE base layer (1). The elastic layer (2) has an elastic covering part (21) whose shape completely matches the groove of the connecting groove (11). The elastic covering part (21) is connected to the inner side of the groove of the connecting groove (11). A reinforcing coating (3) is applied to the top surface of the elastic layer (2). The bottom surface of the reinforcing coating (3) extends to a reinforcing part (31) whose shape completely matches the groove of the elastic covering part (21). The reinforcing part (31) is connected to the inner side of the groove of the elastic covering part (21). A plurality of elastic bodies (32) are provided in the reinforcing part (31).

2. The tear-resistant PE film according to claim 1, characterized in that: The elastic covering part (21) and the elastic layer (2) are an integrated structure, and the top surface of the elastic covering part (21) is pressed with a groove corresponding to the reinforcing part (31).

3. The tear-resistant PE film according to claim 1, characterized in that: The elastomer (32) is either spherical or strip-shaped.

4. The tear-resistant PE film according to claim 1, characterized in that: The reinforced coating (3) is made of nano-silica dispersion and has a recessed grid (33) on its surface.

5. The tear-resistant PE film according to claim 1, characterized in that: Several connecting grooves (11) form a mesh or grid structure.

6. The tear-resistant PE film according to claim 5, characterized in that: The cross-section of the connecting groove (11) is a U-shaped structure with chamfered edges.

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