CN216708645U

CN216708645U - High-performance crossed film

Info

Publication number: CN216708645U
Application number: CN202122239899.0U
Authority: CN
Inventors: 苏润红; 朱文军
Original assignee: Upass Material Technology Shanghai Co ltd
Current assignee: Upass Material Technology Shanghai Co ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-06-10
Anticipated expiration: 2031-09-15

Abstract

The utility model provides a high-performance crossed film, which comprises a crossed film bottom layer, a crossed film surface layer and a glass fiber grid layer, wherein the glass fiber grid layer is compounded between the crossed film bottom layer and the crossed film surface layer through an adhesive layer, and compared with the prior art, the high-performance crossed film has the following technical effects: (1) a fiberglass grid layer is compounded between the bottom layer and the surface layer of the crossed film, so that the nail-stem tearing strength of the crossed film is greatly improved, and the nail-stem tearing strength of the crossed film is improved from 60N-100N to 150N-200N before and after the fiberglass grid layer is compounded; (2) the glass fiber linear degree of the glass fiber mesh layer is 30Tex-60Tex, namely the thickness of the glass fiber mesh layer is very small, and the crossed membrane layering cannot be caused after the glass fiber mesh layer is compounded through the glue layer.

Description

High-performance crossed film

Technical Field

The utility model relates to the technical field of composite crossed membranes, in particular to a high-performance crossed membrane.

Background

The crossed membrane is an important component of the waterproof coiled material, and the waterproof coiled material has wide application in the fields needing water prevention, such as building walls, roofs, tunnels, highways, refuse landfills and the like, and mainly plays a role in blocking external rainwater or preventing underground water seepage. The crossed film is different from a common single-layer film or multi-layer film in cross laminated structure, and has heat stability, dimensional stability, two-way tear resistance and two-way consistent tension. Waterproofing membrane is in the use, the alternately membrane mainly plays waterproof and intensity effect, consequently, the membrane that intersects not only needs higher tensile strength, still need high nail pole tear strength, and the nail pole tear strength of current ordinary alternately membrane is generally 60N, because of waterproofing membrane's use operating mode is comparatively complicated, receive external stress's interference and destruction easily, alternately membrane receives destruction easily, and then influences waterproofing membrane's life, consequently, alternately membrane's nail pole tear strength needs further improvement.

In view of the above, there is a need for an improved crossed film in the prior art to solve the above problems.

Disclosure of Invention

In order to solve the above technical problems, an object of the present invention is to disclose a high performance crossed film, in which a glass fiber mesh layer is added to the crossed film to greatly improve the tearing strength of a nail stem of the crossed film.

In order to achieve the purpose, the utility model provides a high-performance crossed film which comprises a crossed film bottom layer, a crossed film surface layer and a glass fiber grid layer, wherein the glass fiber grid layer is compounded between the crossed film bottom layer and the crossed film surface layer through an adhesive layer.

Preferably, the bottom crossed film layer is an HDPE layer or a PP layer, and the surface crossed film layer is an HDPE layer or a PP layer.

Preferably, the HDPE layer and the PP layer have a thickness of 40 μm to 60 μm.

Preferably, the glue layer is a polyurethane glue layer or a laminating layer.

Preferably, the grid shape of the glass fiber grid layer is square.

Preferably, the grid shape of the glass fiber grid layer is rhombus.

Preferably, the grid shape of the glass fiber grid layer is amorphous.

Preferably, the glass fiber mesh layer has a glass fiber linear degree of 30Tex-60 Tex.

Preferably, the grid size of the fiberglass grid layer is 10mm by 10mm to 40mm by 40 mm.

Preferably, the side length of the grid of the glass fiber grid layer is 10mm-40mm, and the included angle of the diamond is 30 degrees-90 degrees.

Compared with the prior art, the utility model has the following technical effects:

(1) the fiberglass grid layer is compounded between the bottom layer and the surface layer of the crossed film, so that the nail stem tearing strength of the crossed film is greatly improved, and the nail stem tearing strength of the crossed film is improved from 60N-100N to 150N-200N before and after the fiberglass grid layer is compounded;

(2) the glass fiber linear degree of glass fiber net layer is 30Tex-60Tex, and the thickness that is exactly glass fiber net layer is very little, through the compound back of glue film, can not lead to alternately membrane layering.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of a cross-membrane layered structure of the present invention;

FIG. 2 is a schematic view of a glass fiber mesh layer according to the present invention with square meshes;

FIG. 3 is a schematic diagram of a glass fiber mesh layer of the present invention with diamond-shaped meshes;

FIG. 4 is a schematic view showing that the lattice of the glass fiber lattice layer of the present invention is amorphous;

FIG. 5 is a graph comparing the performance of examples of the present invention with a prior art crossed membrane.

Wherein, 1, crossing the membrane surface layer; 2. a fiberglass mesh layer; 3. and (4) crossing the bottom film layer.

Detailed Description

The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that functional, methodological, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Example 1

Referring to fig. 1 to 2, this example discloses a specific embodiment of a high performance crossed film (hereinafter referred to as "crossed film").

A high-performance crossed film is shown in figure 1 and comprises a crossed film bottom layer 3, a crossed film surface layer 1 and a glass fiber grid layer 2, wherein the glass fiber grid layer 2 is compounded between the crossed film bottom layer 3 and the crossed film surface layer 1 through an adhesive layer; specifically, the bottom layer of the crossed film is an HDPE layer, the surface layer of the crossed film is an HDPE layer, the thickness of the HDPE layer is 40 μm, the adhesive layer is a polyurethane adhesive layer or a laminating layer, that is, the glass fiber mesh layer 2 is bonded with the bottom layer of the crossed film and the surface layer of the crossed film through the polyurethane adhesive layer or the laminating layer, after the glass fiber mesh layer 2 is added, in order to prevent the bottom layer 3 of the crossed film and the surface layer 1 of the crossed film from being layered, each layer 2 of the glass fiber mesh cannot be too thick, therefore, the range of the glass fiber linear degree is selected as a key parameter, if the glass fiber linear degree is too small, the nail-stem tearing strength of the crossed film is affected, if the glass fiber linear degree is too small, the adhesive layer may be thickened, and the crossed film is easily layered, referring to fig. 2, the mesh shape of the glass fiber mesh layer 2 is a square, the glass fiber linear degree of the glass fiber mesh layer is 30Tex, and the mesh size of the glass fiber mesh layer is 10mm, with this embodiment, the nail stem tear strength of the crossed film was 155N.

Example 2

The difference from example 1 is that in this example, the HDPE layer has a thickness of 50 μm, the glass fiber linear degree of the glass fiber mesh layer is 50Tex, the mesh size of the glass fiber mesh layer is 30mm x 30mm, and the nail tear strength of the crossed film is 185N.

The technical solution of the high performance cross membrane disclosed in this embodiment has the same components as those in embodiment 1, please refer to embodiment 1, which is not described herein again.

Example 3

The difference from example 1 is that in the high performance crossed film of this example, the thickness of the HDPE layer is 60 μm, the fineness of the fiberglass threads of the fiberglass mesh layer is 60Tex, the mesh size of the fiberglass mesh layer is 40mm by 40mm, and the nail tear strength of the crossed film is 200N.

Example 4

The difference from example 1 is that the cross film of this embodiment has a PP layer as a surface layer, the thickness of the PP layer is 40 μm, the glass fiber linear density of the glass fiber mesh layer is 30Tex, the mesh size of the glass fiber mesh layer is 10mm x 10mm, and the nail-stem tear strength of the cross film is 155N.

Example 5

The difference from example 1 is that the cross film of this embodiment has a PP layer as a surface layer, the thickness of the PP layer is 50 μm, the glass fiber linear density of the glass fiber mesh layer is 50Tex, the mesh size of the glass fiber mesh layer is 30mm x 30mm, and the nail-stem tear strength of the cross film is 185N.

Example 6

The difference from example 1 is that the cross film surface layer of the high performance cross film of this embodiment is a PP layer, the thickness of the PP layer is 60 μm, the glass fiber filament fineness of the glass fiber mesh layer is 60Tex, the mesh size of the glass fiber mesh layer is 40mm by 40mm, and the nail tear strength of the cross film is 200N.

The technical solutions of the high performance crossed film disclosed in this embodiment and embodiment 1 have the same components, please refer to embodiment 1, and are not described herein again.

Example 7

The difference from example 1 is that, in the high-performance crossed film of this embodiment, referring to fig. 3, the grid shape of the glass fiber grid layer 2 is a rhombus, the side length of the grid is 10mm, the included angle of the rhombus is 30 degrees, and the nail rod tear strength of the crossed film is 150N.

Example 8

The difference from example 2 is that, in the high-performance crossed film of this embodiment, referring to fig. 3, the grid shape of the glass fiber grid layer 2 is a rhombus, the side length of the grid is 30mm, the included angle of the rhombus is 60 degrees, and the tear strength of the nail rod of the crossed film is 180N.

Example 9

The difference from example 3 is that, in the high-performance crossed film of this embodiment, referring to fig. 3, the grid shape of the glass fiber grid layer 2 is a rhombus, the side length of the grid is 40mm, the included angle of the rhombus is 90 degrees, and the nail rod tearing strength of the crossed film is 195N.

Example 10

The difference from example 1 is that, referring to fig. 4, the grid shape of the glass fiber grid layer 2 of the present embodiment is amorphous, the amorphous glass fiber grid layer 2 is formed by randomly crossing a plurality of glass fiber filaments, specifically, the glass fiber filaments and polyurethane glue are mixed and then coated, or the glass fiber filaments and polyurethane glue are woven irregularly, and the nail stem tear strength of the cross film is 150N according to the present embodiment.

Example 11

The difference from example 2 is that, referring to fig. 4, the grid shape of the glass fiber grid layer 2 of the present embodiment is amorphous, the amorphous glass fiber grid layer 2 is formed by randomly crossing a plurality of glass fiber filaments, specifically, the glass fiber filaments and the polyurethane glue are mixed and then coated, or the glass fiber filaments and the polyurethane glue are woven irregularly, and the nail stem tear strength of the cross film is 180N according to the present embodiment.

Example 12

The difference from example 3 is that, referring to fig. 4, the grid shape of the glass fiber grid layer 2 of the present embodiment is amorphous, the amorphous glass fiber grid layer 2 is formed by randomly crossing a plurality of glass fiber filaments, specifically, the glass fiber filaments and polyurethane glue are mixed and then coated, or the glass fiber filaments and polyurethane glue are woven irregularly, and the nail stem tear strength of the cross film is 195N according to the present embodiment.

For further explaining the beneficial effects of the utility model, the comparison of the performance of the embodiment of the utility model with the existing crossed film is shown in fig. 5, after the glass fiber grid layer 2 is compounded, tests show that the tearing strength of the nail of the crossed film reaches 150N-200N, wherein when the grid of the glass fiber grid layer 2 is square, the tearing strength of the nail of the crossed film is the best.

Claims

1. The high-performance crossed film is characterized by comprising a crossed film bottom layer, a crossed film surface layer and a glass fiber grid layer, wherein the glass fiber grid layer is compounded between the crossed film bottom layer and the crossed film surface layer through an adhesive layer, the crossed film bottom layer is an HDPE layer or a PP layer, and the crossed film surface layer is an HDPE layer or a PP layer.

2. A high performance cross-over film according to claim 1, wherein the HDPE layer and the PP layer have a thickness of 40 μm to 60 μm.

3. The high performance crossed membrane of claim 1 wherein the glue layer is a polyurethane glue layer or a laminating layer.

4. The high performance cross-membrane of claim 1 wherein the fiberglass mesh layer has a square mesh shape.

5. The high performance cross-membrane of claim 1 wherein the fiberglass mesh layer has a diamond shape.

6. The high performance cross-membrane of claim 1, wherein the fiberglass mesh layer is amorphous in mesh form.

7. The high performance cross-membrane of any one of claims 4 to 6, wherein the glass fiber mesh layer has a glass fiber linear dimension of 30Tex to 60 Tex.

8. The high performance cross-membrane of claim 4 wherein said fiberglass mesh layer has a mesh size of 10mm by 10mm to 40mm by 40 mm.

9. The high performance cross-membrane of claim 5, wherein the fiberglass mesh layer has mesh sides of 10mm to 40mm in length and diamond angles of 30 degrees to 90 degrees.