Waterproof cross film

Abstract

The utility model discloses a waterproof cross film which comprises a cross film layer, a waterproof layer and a self-adhesive layer which are sequentially bonded and compounded from top to bottom, and further comprises lap joint parts arranged on the two sides of the waterproof cross film, the lap joint part on one side of the waterproof cross film is matched with the lap joint part of the adjacent waterproof cross film in space, and the lap joint part on the other side of the waterproof cross film is matched with the lap joint part on the other side of the waterproof cross film. The lap joint part is of an inclined plane structure, and a carbon fiber layer is compounded in the lap joint part; wherein concave-convex insections are arranged on the inclined surface of the lap joint part in the length direction. The lap joint part is arranged to be of the inclined face structure, the concave-convex insections are arranged on the inclined face in the length direction, in the lap joint process, the contact area is increased, tight extrusion and attachment are achieved, and meanwhile the carbon fiber layer is arranged in the lap joint part in a composite mode, so that the lap joint part is prevented from being curled and deformed when affected by temperature changes.

Description

Technical Field

[0001] This utility model belongs to the field of membrane technology, and in particular relates to a waterproof cross membrane. Background Technology

[0002] Waterproof cross-laminated membrane, also known as waterproof roll, is a type of waterproof roll made from asphalt, rubber, or other organic materials. Commonly called asphalt felt or tar paper, it possesses good waterproofing properties and flexibility. Depending on the material, it can be classified as asphalt waterproof roll, polymer-modified asphalt waterproof roll, and synthetic polymer waterproof roll. Based on the type of substrate, it can be categorized as non-substrate roll, paper-substrate roll, and fiberglass-substrate roll. Cross-laminated membrane is used in the manufacture of these rolls; it is a specially designed cross-laminated high-density polyethylene film.

[0003] However, existing waterproof cross-laminated membranes have many problems with their overlapping structures. Traditional overlapping methods are mostly simple planar overlaps, resulting in poor sealing at the overlap and easy water seepage, affecting the overall waterproof effect. At the same time, the existing overlaps are relatively short, and during use, the overlaps are prone to curling, leading to water seepage and other problems. For example, a root-penetration resistant self-adhesive waterproof membrane with double-overlapping cross-laminated membrane disclosed in patent application number 202221943124.X is connected through the overlaps on both sides of the cross-laminated membrane during construction. However, the planar overlapping method results in poor sealing at the overlap, and the overlap is prone to curling and deformation due to temperature changes during use. Summary of the Invention

[0004] One object of this invention is to solve at least the aforementioned problems and / or defects, and to provide at least the advantages described below.

[0005] To achieve these objectives and other advantages according to the present invention, a waterproof cross-laminated membrane is provided, comprising a cross-laminated membrane layer, a waterproof layer and a self-adhesive layer bonded together from top to bottom, and further comprising: overlapping portions disposed on both sides of the waterproof cross-laminated membrane, wherein the overlapping portion on one side of the waterproof cross-laminated membrane spatially cooperates with the overlapping portion of the adjacent waterproof cross-laminated membrane, the overlapping portion is configured as a sloping structure, and a carbon fiber layer is laminated within the overlapping portion;

[0006] The inclined surface of the overlapping part is provided with concave and convex serrations along its length.

[0007] Preferably, the waterproof layer includes: a waterproof base layer and a unit grid disposed beneath the waterproof base layer;

[0008] Each unit grid is filled with waterproof adhesive.

[0009] Preferably, the unit grid is set as any one or more of the following: triangular unit grid, quadrilateral unit grid, and hexagonal unit grid.

[0010] Preferably, the self-adhesive layer has multiple air-guiding lines.

[0011] Preferably, a release film is disposed beneath the self-adhesive layer;

[0012] The isolation membrane is provided with isolation holes in a cross-shaped mesh pattern.

[0013] This utility model has at least the following beneficial effects: by setting the overlapping part as a sloping structure, and the concave and convex teeth set along the length of the sloping surface, the contact area is increased during overlapping, achieving tight compression and fitting, and greatly reducing the overlapping gap. At the same time, the carbon fiber layer compositely set inside the overlapping part prevents the overlapping part from curling and deforming when affected by temperature changes.

[0014] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached image description:

[0015] Figure 1 This is a cross-sectional view of the waterproof cross membrane of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of the waterproof cross-membrane;

[0017] Figure 3 This is a schematic diagram of the separator membrane.

[0018] Figure 4 This is a schematic diagram of one type of cell mesh structure;

[0019] Figure 5 This is a schematic diagram of the separator membrane.

[0020] Figure descriptions: 1. Cross-layer membrane, 2. Waterproof base layer, 3. Unit grid, 4. Waterproof adhesive, 5. Self-adhesive layer, 6. Overlap, 7. Carbon fiber layer, 8. Air-guiding texture, 9. Separator membrane, 10. Separator hole, 11. Waterproof cross-layer membrane. Detailed implementation method:

[0021] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description. It should be understood that terms such as "having," "comprising," and "including" as used herein do not exclude the presence or addition of one or more other elements or combinations thereof. It should be noted that in the description of the present invention, the terms indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Moreover, "above," "on top of," and "on top" can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0022] like Figures 1-5 The waterproof cross membrane shown includes a cross membrane layer 1, a waterproof layer and a self-adhesive layer 5 bonded together from top to bottom, and further includes: overlapping portions 6 disposed on both sides of the waterproof cross membrane 11, wherein the overlapping portion 6 on one side of the waterproof cross membrane 11 and the overlapping portion 6 of the adjacent waterproof cross membrane 11 are spatially matched, the overlapping portion 6 is configured as a sloping structure, and a carbon fiber layer 7 is laminated inside the overlapping portion 6.

[0023] The overlapping portion 6 has serrated edges along its length.

[0024] Working principle:

[0025] In practical applications, the waterproof cross-laminated membrane 11 is also known as a waterproof roll. When using this waterproof cross-laminated membrane, the self-adhesive layer 5 is used to adhere it to the ground to be laid. At the same time, the overlapping parts 6 on both sides of the waterproof cross-laminated membrane are used to connect the two overlapping parts 6 into a whole structure when splicing the waterproof cross-laminated membrane (usually the two overlapping parts 6 are glued together). In this utility model, by setting the overlapping parts 6 into a beveled structure, and the beveled surface is provided with concave and convex serrations along the length direction, the concave and convex serrations increase the contact area of ​​the overlapping parts 6 when they are connected, achieving tight fit and mechanical locking, reducing gaps and enhancing impermeability. The carbon fiber layer 7 is composited with the overlapping parts 6, and its low expansion coefficient and high rigidity reduce the impact of temperature on the overlapping parts 6, improve the anti-curling ability, and enhance tensile strength.

[0026] In the above technical solution, the waterproof layer includes: a waterproof base layer 2, and unit grids 3 disposed below the waterproof base layer 2; wherein each unit grid 3 is filled with waterproof adhesive 4. Using this technical solution, the unit grids 3 divide the waterproof layer into independent sealed spaces, and the waterproof adhesive 4 filling each grid forms a "micro-waterproof chamber." When local leakage occurs, the waterproof adhesive 4 can quickly fill the gaps and prevent moisture diffusion, avoiding water seepage; simultaneously, the waterproof adhesive 4 is tightly bonded to the waterproof base layer 2, forming a continuous and dense waterproof barrier.

[0027] In the above technical solution, the unit mesh 3 is set as any one or more of triangular unit meshes, quadrilateral unit meshes, and hexagonal unit meshes. This setting ensures the structural stability of the unit mesh and guarantees the limiting effect on the waterproof adhesive 4.

[0028] In the above technical solution, the self-adhesive layer 5 is provided with multiple air-guiding patterns 8. Using this technical solution, during the production process, a textured roller with specific patterns (tilt angle, toothed structure) is used to roll the self-adhesive layer 5 before it is fully cured after coating. Mechanical pressure is used to "imprint" the patterns onto the surface of the self-adhesive layer 5, forming air-guiding patterns 8 (the depth of the air-guiding patterns 8 is half the thickness of the self-adhesive layer 5). The air-guiding patterns 8 provide an air outlet channel, allowing air to quickly escape along the patterns, preventing the formation of air bubbles, thereby improving the tightness and firmness of the adhesion. Simultaneously, repeated rolling by external pressure rollers flattens the air-guiding patterns 8 on the self-adhesive layer 5, ensuring the adhesion's firmness.

[0029] The above technical solution also includes: a release film 9 disposed below the self-adhesive layer 5; wherein the release film 9 is provided with release holes 10 in a cross-shaped mesh pattern. Using this technical solution, the release film 9 can effectively protect the self-adhesive layer 5 from contamination and scratches during transportation and storage, preventing premature adhesion of the self-adhesive layer 5 and ensuring that the product maintains good performance upon arrival at the construction site. Simultaneously, the release film 9 is provided with cross-shaped mesh release holes 10, which form a clear grid pattern during actual on-site installation. The waterproof cross-shaped membrane can be cut as needed, precisely cut along the grid pattern without additional measurement or marking, significantly improving cutting efficiency and accuracy. It also facilitates tearing the release film 9 through the release holes 10. Furthermore, the opening size of each release hole 10 is very small, and the external environment will not affect the adhesive strength of the self-adhesive layer 5.

[0030] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A waterproof cross-laminate comprising, in order from the top, a cross-laminate layer, a waterproof layer and a self-adhesive layer bonded in combination, characterized in that, Also includes: The overlapping portions on both sides of the waterproof cross membrane are spatially matched with the overlapping portions of the adjacent waterproof cross membrane. The overlapping portions are configured as sloping structures and are composited with carbon fiber layers. The inclined surface of the overlapping part is provided with concave and convex serrations along its length.

2. The waterproof cross-film according to claim 1, characterized in that, The waterproof layer includes: a waterproof base layer and a unit grid disposed beneath the waterproof base layer; Each unit grid is filled with waterproof adhesive.

3. The waterproof cross-film according to claim 2, characterized in that, The unit grid is set to any one or more of the following: triangular unit grid, quadrilateral unit grid, and hexagonal unit grid.

4. The waterproof cross-film according to claim 1, characterized in that, The self-adhesive layer has multiple air-guiding lines.

5. The waterproof cross-film according to claim 1, characterized in that, Also includes: A release film is provided beneath the self-adhesive layer; The isolation membrane is provided with isolation holes in a cross-shaped mesh pattern.

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