CN216373595U - Tear resistant multilayer film - Google Patents

Abstract

The utility model belongs to the technical field of films, and particularly relates to a tear-resistant multilayer structure film which comprises a film body, wherein the film body comprises a first film layer, a fiber grid layer and a second film layer which are sequentially arranged from top to bottom, one side surfaces, close to the fiber grid layer, of the first film layer and one side surface, close to the fiber grid layer, of the second film layer are respectively provided with an elastic layer, the elastic layers are bonded with the fiber grid layer, and one side surfaces, far away from the fiber grid layer, of the first film layer and one side surface, far away from the fiber grid layer, of the second film layer are respectively provided with a flame-retardant coating; the tensile strength of the film layer is enhanced through the connection of the fiber mesh layer and the film layer, the tear resistance of the film body is improved, and the fixing and protecting effects of the film body are guaranteed.

Description

Tear resistant multilayer film

Technical Field

The utility model belongs to the technical field of films, and particularly relates to a tear-resistant multilayer structure film.

Background

Fluoropolymer films are widely used in various fields due to their advantageous properties in terms of chemical resistance, dielectric properties, electrical insulation, high temperature resistance, weldability, moisture resistance, transparency, mechanical strength, and the like. Among them, PTFE (Polytetrafluoroethylene), commonly known as "plastic king", is a high molecular compound obtained by polymerizing tetrafluoroethylene, and has excellent chemical stability, corrosion resistance, sealing property, high lubrication non-adhesiveness, electrical insulation property, and good aging resistance, but this type of film has a small tensile strength, is easily deformed by stress, can be easily deformed by stretching, tearing, and is easily damaged in the use process, and is not favorable for application.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a tear-resistant multilayer structure film, and aims to solve the technical problem that the film in the prior art is easy to deform, tear or break when being stretched under stress in the using process.

In order to achieve the above object, an anti-tear multilayer structure film provided in an embodiment of the present invention includes a film body, where the film body includes, from top to bottom, a first film layer, a fiber mesh layer, and a second film layer, where one side of the first film layer and one side of the second film layer close to the fiber mesh layer are both provided with an elastic layer, the elastic layer is bonded to the fiber mesh layer, and one side of the first film layer and one side of the second film layer far from the fiber mesh layer are both provided with a flame retardant coating.

Optionally, an adhesive layer is disposed between the elastic layer and the fiber mesh layer, and a plurality of bumps for increasing an area of the fiber mesh layer in contact with the adhesive layer are disposed on a surface of the fiber mesh layer.

Optionally, the fiber mesh layer comprises a mesh square resistance area and a mesh edge area, the mesh square resistance area and the mesh edge area are sequentially and alternately arranged, and the film body is provided with an easily-torn line which is arranged at the mesh edge area.

Optionally, the grid square resistance area comprises a plurality of support bars, each support bar is distributed in a transversely-longitudinally staggered manner to form a plurality of stabilizing grooves, and a stabilizing bar for improving the supporting force is fixedly arranged in each stabilizing groove.

Optionally, the flame retardant coating layer is provided with an antistatic layer on the outer side.

Optionally, the flame retardant coating is a pure acrylic polymer waterborne flame retardant coating.

Optionally, an insulating layer is arranged outside the anti-static layer.

Optionally, the insulation layer is a polyurethane insulation layer.

Optionally, the antistatic layer is a nano tin antimony oxide antistatic coating.

Optionally, the thickness of the first thin film layer and the second thin film layer ranges from 0.010 mm to 0.012 mm.

One or more technical solutions in the tear-resistant multilayer structure film provided by the embodiment of the present invention at least have one of the following technical effects: the double-layer film is arranged, the fiber grid layer with high elasticity is arranged between the two film layers, and the fiber grid layer is connected with the film layers to enhance the tensile strength of the film layers, improve the tear resistance of the film body and ensure the fixing and protecting functions of the film body; the thin film layer sets up the elastic layer in one side that is close to the fibre net layer, can improve the toughness of thin film layer when improving the connection stability with the fibre net layer, and the thin film layer sets up flame retardant coating in the one side of keeping away from the fibre net layer, strengthens the fire behaviour of film body, and the security performance is high.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a cross-sectional view of a tear resistant multilayer film provided by an embodiment of the present invention.

FIG. 2 is an elevation view of a fiber mesh layer provided by an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

10-first film layer 20-fiber grid layer 21-grid square resistance area

22-web edge zone 30-second film layer 40-elastic layer

50-flame-retardant coating 60-antistatic layer 70-insulating layer.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to fig. 1-2 are exemplary and intended to be used to illustrate embodiments of the utility model, and should not be construed as limiting the utility model.

In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

In an embodiment of the present invention, as shown in fig. 1-2, a tear-resistant multilayer structure film is provided, which includes a film body, the film body includes a first film layer 10, a fiber mesh layer 20, and a second film layer 30 sequentially disposed from top to bottom, an elastic layer 40 is disposed on one side of the first film layer 10 and one side of the second film layer 30 close to the fiber mesh layer 20, the elastic layer 40 is bonded to the fiber mesh layer 20, and a flame retardant coating 50 is disposed on one side of the first film layer 10 and one side of the second film layer 30 far from the fiber mesh layer 20.

In the embodiment of the utility model, the double-layer film is arranged, the fiber mesh layer 20 with high elasticity is arranged between the two film layers, and the fiber mesh layer 20 is connected with the film layers to enhance the tensile strength of the film layers, improve the tear resistance of the film body and ensure the fixing and protecting functions of the film body; the thin film layer sets up elastic layer 40 in one side that is close to fibre net layer 20, can improve the toughness of thin film layer when improving with fibre net layer 20's connection stability, and the thin film layer sets up flame retardant coating 50 in one side of keeping away from fibre net layer 20, strengthens the flame retardant property of film body, and the security performance is high.

In another embodiment of the present invention, an adhesive layer is disposed between the elastic layer 40 and the fiber mesh layer 20 of the tear-resistant multilayer structure film, a plurality of protrusions for increasing the contact area between the fiber mesh layer 20 and the adhesive layer are disposed on the surface of the fiber mesh layer 20, after the fiber mesh layer 20 is attached to the adhesive layer, the protrusions sink into the adhesive layer, and the contact area between the fiber mesh layer 20 and the adhesive layer is increased, so as to enhance the connection stability between the fiber mesh layer 20 and the adhesive layer.

In another embodiment of the utility model, the fiber mesh layer 20 of the tear-resistant multilayer structure film comprises mesh square resistance areas 21 and mesh side areas 22, the mesh square resistance areas 21 and the mesh side areas 22 are sequentially and alternately arranged, the film body is provided with easy-to-tear lines, the easy-to-tear lines are arranged at the mesh side areas 22 and divide the fiber mesh layer 20 into a plurality of mesh square resistance areas 21, the mesh side areas 22 are arranged between two adjacent mesh square resistance areas 21, the easy-to-tear lines are arranged on the mesh side areas 22, and the mesh square resistance areas 21 are separated from the film body by tearing the easy-to-tear lines, so that the film body is conveniently torn into a plurality of film bodies with smaller areas, and the tear-resistant multilayer structure film is suitable for different use scenes, greatly improves convenience and has strong practicability.

In another embodiment of the present invention, the lattice resistance square regions 21 of the tear-resistant multilayer structure film comprise a plurality of supporting strips, each supporting strip is distributed in a criss-cross manner in a transverse and longitudinal direction to form a plurality of stabilizing grooves, and a stabilizing strip for improving supporting force is fixedly arranged in each stabilizing groove, so that the supporting performance of the fiber lattice layer 20 is further improved, and the tear resistance of the film body is improved.

In another embodiment of the present invention, an antistatic layer 60 is disposed on the outer side of the flame retardant coating 50 of the tear-resistant multilayer structure film, and the antistatic layer 60 is a nano tin antimony oxide antistatic coating, so as to improve an antistatic effect and improve practicality.

In another embodiment of the present invention, the flame retardant coating 50 of the tear resistant multilayer structural film is a pure propylene polymer waterborne flame retardant coating 50.

In another embodiment of the present invention, the anti-static layer 60 of the tear-resistant multilayer structure film is provided with an insulating layer 70 on the outer side, and the insulating layer 70 is a polyurethane insulating layer 70, so as to improve the insulating property.

In another embodiment of the utility model, the thickness of the first film layer 10 and the second film layer 30 of the tear-resistant multilayer structure film ranges from 0.010 mm to 0.012 mm.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A tear resistant multilayer film characterized by: including the film body, the film body includes from last to being equipped with first thin layer, fibre net layer and second thin layer down in proper order, first thin layer with the second thin layer is close to a side on fibre net layer all is equipped with the elastic layer, the elastic layer with fibre net layer bonds, first thin layer with the second thin layer is kept away from a side on fibre net layer all is equipped with fire-retardant coating.

2. The tear resistant multilayer film of claim 1 wherein: an adhesive layer is arranged between the elastic layer and the fiber grid layer, and a plurality of salient points used for increasing the contact area of the fiber grid layer and the adhesive layer are arranged on the surface of the fiber grid layer.

3. The tear resistant multilayer film of claim 1 wherein: the fiber grid layer comprises a grid square resistance area and a grid edge area, the grid square resistance area and the grid edge area are sequentially and alternately arranged, and the film body is provided with an easy-to-tear line which is arranged at the grid edge area.

4. The tear resistant multilayer film of claim 3 wherein: the grid side hinders the district and includes a plurality of support bars, each the support bar is violently indulges crisscross distribution in order to form a plurality of firm grooves, all fixed being provided with one in the firm groove and being used for improving the firm strip of holding power.

5. The tear resistant multilayer film of claim 1 wherein: and an anti-static layer is arranged on the outer side of the flame-retardant coating.

6. The tear resistant multilayer film of claim 5 wherein: the flame-retardant coating is a pure acrylic polymer water-based flame-retardant coating.

7. The tear resistant multilayer film of claim 5 wherein: and a heat insulation layer is arranged on the outer side of the anti-static layer.

8. The tear resistant multilayer film of claim 7 wherein: the heat-insulating layer is a polyurethane heat-insulating layer.

9. The tear resistant multilayer film of claim 5 wherein: the antistatic layer is a nano tin antimony oxide antistatic coating.

10. The tear resistant multilayer film according to any one of claims 1 to 9, wherein: the thickness value range of the first thin film layer and the second thin film layer is 0.010-0.012 mm.

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