Tackifying composite film, single-layer waterproof structure and double-layer waterproof structure

Abstract

The utility model relates to a tackifying composite film, a single-layer waterproof structure and a double-layer waterproof structure, the tackifying composite film comprises a base layer and a tackifying layer, and the roughness of the upper surface of the tackifying layer is different from that of the lower surface of the tackifying layer. The adhesive tape has the advantages that the tackifying layer and the base layer are high in binding strength and not easy to separate; the temperature-resistant effect is good; the pull-out test effect is good; the cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproof materials, in particular to an adhesion-enhanced composite film, a single-layer waterproof structure and a double-layer waterproof structure. Background Art

[0002] With the implementation of the General Code for Civil Buildings GB55031-2022, first-class waterproofing requires two layers of waterproofing to ensure the waterproofing effect of the project. However, there is a full-adhesion problem in the existing two-layer waterproofing, that is, wrinkling or a smooth interface of the first-layer waterproofing will affect the waterproofing effect of the second-layer waterproofing.

[0003] For the construction methods of the existing two-layer waterproofing, there are generally the following three methods:

[0004] 1) The fire-baking method: This method is not environmentally friendly;

[0005] 2) The primer-brushing method: This method is an improvement over the fire-baking method. It utilizes the many voids and large contact area of the fiber to absorb the primer and improve the bonding force between the upper and lower layers of waterproofing. However, this method has a complex construction process and is prone to peeling in the later stage;

[0006] 3) The double-sided tape method: This method has a complex construction process and a high cost, and is not suitable for large-scale popularization and application.

[0007] Currently, in view of the problems in the related art such as complex construction, high cost, and easy peeling in the later stage, no effective solutions have been proposed. Summary of the Utility Model

[0008] The purpose of the utility model is to provide an adhesion-enhanced composite film, a single-layer waterproof structure and a double-layer waterproof structure for the deficiencies in the prior art, so as to solve the problems in the related art such as complex construction, high cost, and easy peeling in the later stage.

[0009] To achieve the above purpose, the technical solution adopted by the utility model is:

[0010] In the first aspect, an adhesion-enhanced composite film is provided, including:

[0011] A base layer;

[0012] An adhesion-enhanced layer, the adhesion-enhanced layer is disposed on the upper surface of the base layer, wherein the roughness of the upper surface of the adhesion-enhanced layer is different from the roughness of the lower surface of the adhesion-enhanced layer.

[0013] In some of these embodiments, it further includes:

[0014] A first adhesive layer, the first adhesive layer is disposed between the base layer and the adhesion-enhanced layer.

[0015] In some of these embodiments, the roughness of the lower surface of the tackifying layer is less than that of the upper surface of the tackifying layer.

[0016] In some of these embodiments, the base layer is a PET aluminized film.

[0017] In some of these embodiments, the tackifying layer is a polypropylene fabric.

[0018] In some of these embodiments, the tackifying layer is prepared by a spunlace process.

[0019] In a second aspect, a single-layer waterproof structure is provided, comprising:

[0020] The tackifying composite film as described in the first aspect;

[0021] A first waterproof structure, which is disposed on the lower surface of the base layer of the tackifying composite film.

[0022] In some of these embodiments, the first waterproof structure comprises:

[0023] A first asphalt adhesive layer, which is disposed on the lower surface of the base layer;

[0024] A first release layer, which is removably disposed on the lower surface of the first asphalt adhesive layer.

[0025] In a third aspect, a double-layer waterproof structure is provided, comprising:

[0026] The tackifying composite film as described in the first aspect;

[0027] A first waterproof structure, which is disposed on the lower surface of the base layer of the tackifying composite film;

[0028] A second waterproof structure, which is disposed on the upper surface of the tackifying layer of the tackifying composite film.

[0029] In some of these embodiments, the first waterproof structure comprises:

[0030] A first asphalt adhesive layer, which is disposed on the lower surface of the base layer;

[0031] A first release layer, which is removably disposed on the lower surface of the first asphalt adhesive layer

[0032] In some of these embodiments, the second waterproof structure comprises:

[0033] A second asphalt adhesive layer, which is disposed on the upper surface of the tackifying layer.

[0034] In some of these embodiments, the second waterproof structure further includes:

[0035] A second release layer removably disposed on the lower surface of the second asphalt adhesive layer for connecting the second asphalt adhesive layer to the tackifying layer when separated from the second asphalt adhesive layer.

[0036] By adopting the above technical solutions, the present utility model has the following technical effects compared with the prior art:

[0037] For a tackifying composite film, a single-layer waterproof structure and a double-layer waterproof structure of the present utility model, the bonding strength between the tackifying layer and the base layer is strong and not easily separated; the temperature resistance effect is good; the pull-out test effect is good; it is green and environmentally friendly, and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a cross-sectional view of a tackifying composite film according to an embodiment of the present utility model;

[0039] Figure 2 is a schematic diagram of a single-layer waterproof structure according to an embodiment of the present utility model;

[0040] Figure 3 is a schematic diagram of a double-layer waterproof structure according to an embodiment of the present utility model.

[0041] The reference numerals therein are: 100, tackifying composite film; 110, base layer; 120, tackifying layer; 200, first waterproof structure; 300, second waterproof structure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0043] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments may be combined with each other.

[0044] The following further illustrates the present utility model with reference to the accompanying drawings and specific embodiments, but is not a limitation of the present utility model.

[0045] Embodiment 1

[0046] This embodiment relates to the tackifying composite film of the present utility model.

[0047] A schematic embodiment of the present utility model, as Figure 1As shown, a tackifying composite film 100 includes a base layer 110 and a tackifying layer 120. Among them, the tackifying layer 120 is disposed on the upper surface of the base layer 110, and the roughness of the upper surface of the tackifying layer 120 is different from the roughness of the lower surface of the tackifying layer 120.

[0048] In some of these embodiments, the base layer 110 is a PET aluminized film.

[0049] The size of the tackifying layer 120 matches the size of the base layer 110. Generally, the radial dimensions (such as length and width) of the tackifying layer 120 are not less than the radial dimensions (such as length and width) of the base layer 110.

[0050] Preferably, the radial dimensions (such as length and width) of the tackifying layer 120 are equal to the radial dimensions (such as length and width) of the base layer 110.

[0051] In some of these embodiments, the roughness of the lower surface of the tackifying layer 120 is less than the roughness of the upper surface of the tackifying layer 120.

[0052] In some of these embodiments, the tackifying layer 120 has a matte surface and a smooth surface. Among them, the matte surface is the upper surface of the tackifying layer 120, and the smooth surface is the lower surface of the tackifying layer 120.

[0053] In some of these embodiments, the tackifying layer 120 has a first matte surface and a second matte surface. Among them, the first matte surface is the upper surface of the tackifying layer 120, and the second matte surface is the lower surface of the tackifying layer 120.

[0054] In some of these embodiments, the tackifying layer 120 includes a number of first burrs. Among them, a number of first burrs are distributed on the upper surface of the tackifying layer 120.

[0055] In some of these embodiments, the tackifying layer 120 includes a number of first burrs and a number of second burrs. Among them, a number of first burrs are distributed on the upper surface of the tackifying layer 120; a number of second burrs are distributed on the lower surface of the tackifying layer 120. In addition, the number of second burrs is not greater than the number of first burrs, or the density of second burrs is less than the density of first burrs, or the height of second burrs is less than the height of first burrs.

[0056] In some of these embodiments, the tackifying layer 120 is prepared by a hydroentangling process.

[0057] In some of these embodiments, the tackifying layer 120 is a polypropylene fabric.

[0058] Furthermore, the single-layer waterproof structure further includes a first adhesive layer. Among them, the first adhesive layer is disposed between the base layer 110 and the tackifying layer 120.

[0059] In some of these embodiments, the first adhesive layer is a solvent-free glue.

[0060] The technical effects of the present utility model are as follows:

[0061] 1) The bonding strength between the tackifying layer and the base layer is strong and it is not easy to separate;

[0062] 2) It has good heat resistance;

[0063] 3) The effect of the pull-out test is good;

[0064] 4) It is green and environmentally friendly and has low cost.

[0065] Embodiment 2

[0066] This embodiment relates to the single-layer waterproof structure of the present utility model.

[0067] A schematic embodiment of the present utility model, as Figure 2 shown, a single-layer waterproof structure, includes the tackifying composite film 100 and the first waterproof structure 200 as described in Embodiment 1. Among them, the first waterproof structure 200 is disposed on the lower surface of the base layer 110 of the tackifying composite film 100.

[0068] In the present utility model, the first waterproof structure 200 includes but is not limited to waterproof coiled materials.

[0069] In the present utility model, at the time of leaving the factory, the tackifying composite film 100 and the first waterproof structure 200 are compounded together and there is no need to compound them at the construction site.

[0070] In some of these embodiments, the first waterproof structure 200 includes a first asphalt adhesive layer and a first release layer. Among them, the first asphalt adhesive layer is disposed on the lower surface of the base layer 110; the first release layer is removably disposed on the lower surface of the first asphalt adhesive layer.

[0071] In some of these embodiments, the first asphalt adhesive layer includes but is not limited to asphalt adhesive.

[0072] In some of these embodiments, the first release layer includes but is not limited to a release film.

[0073] The usage method of the present utility model is as follows:

[0074] Separate the first release layer from the first asphalt adhesive layer, install the tackifying composite film 100 and the first waterproof structure 200 at a specific position, and complete the construction of the single-layer waterproof structure.

[0075] The technical effects of the present utility model are basically the same as those of Embodiment 1 and will not be elaborated here.

[0076] Embodiment 3

[0077] This embodiment relates to the double-layer waterproof structure of the present utility model.

[0078] A schematic embodiment of the present utility model is as Figure 3 shown, a double-layer waterproof structure, including the tackifying composite film 100, the first waterproof structure 200 and the second waterproof structure 300 as described in Embodiment 1. Among them, the first waterproof structure 200 is disposed on the lower surface of the base layer 110 of the tackifying composite film 100; the second waterproof structure 300 is disposed on the upper surface of the tackifying layer 120 of the tackifying composite film 100.

[0079] In this embodiment, the first waterproof structure 200 is substantially the same as the first waterproof structure 200 in Embodiment 2, and will not be described herein again.

[0080] In the present utility model, the second waterproof structure 300 includes, but is not limited to, waterproof coiled materials.

[0081] In the present utility model, at the time of leaving the factory, the tackifying composite film 100 and the first waterproof structure 200 are compounded together, and there is no need to compound them at the construction site.

[0082] In the present utility model, at the time of leaving the factory, the second waterproof structure 300 can be compounded with the tackifying composite film 100, and there is no need to compound them at the construction site; or, the second waterproof structure 300 is produced separately, and at the construction site, the second waterproof structure 300 is compounded with the tackifying composite film 100.

[0083] In some of the embodiments, the second waterproof structure 300 includes a second bituminous adhesive layer. Among them, the second bituminous adhesive layer is disposed on the upper surface of the tackifying layer 120.

[0084] In some of the embodiments, the second bituminous adhesive layer includes, but is not limited to, bituminous adhesive.

[0085] Further, the second waterproof structure 300 further includes a second release layer. Among them, the second release layer is removably disposed on the lower surface of the second bituminous adhesive layer for connecting the second bituminous adhesive layer with the tackifying layer 120 in the case of being separated from the second bituminous adhesive layer.

[0086] In some of the embodiments, the second release layer includes, but is not limited to, release film.

[0087] The using method of the present utility model is as follows:

[0088] Separate the first release layer from the first bituminous adhesive layer, and install the tackifying composite film 100 and the first waterproof structure 200 at a specific position;

[0089] Separate the second release layer from the second bituminous adhesive layer, and bond the second bituminous adhesive layer with the tackifying layer 120 to complete the construction of the double-layer waterproof structure.

[0090] The technical effects of the present utility model are as follows:

[0091] 1) The bonding strength between the tackifying layer and the second waterproof structure is strong and it is not easy to separate;

[0092] 2) It has good temperature resistance effect;

[0093] 3) The effect of the pull-out test is good;

[0094] 4) The construction is simple and the cost is low.

[0095] The above are only the preferred embodiments of the present utility model, and do not limit the implementation manners and protection scope of the present utility model. For those skilled in the art, it should be realized that all the equivalent replacements and obvious changes made by using the description and illustrations of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A viscosity-enhancing composite film, characterized in that: include: Grassroots; The adhesion promoting layer is arranged on the upper surface of the base layer, wherein the roughness of the upper surface of the adhesion promoting layer is different from the roughness of the lower surface of the adhesion promoting layer.

2. The adhesion-promoting composite film according to claim 1, characterized in that: Also includes: A first adhesive layer is disposed between the base layer and the adhesion-promoting layer.

3. The adhesion-promoting composite film according to claim 1, characterized in that: The roughness of the lower surface of the adhesion promoting layer is smaller than the roughness of the upper surface of the adhesion promoting layer.

4. The adhesion-promoting composite film according to claim 1, characterized in that: The base layer is a PET aluminized film; and / or The adhesion-enhancing layer is polypropylene cloth.

5. The adhesion-promoting composite film according to claim 1, characterized in that: The adhesion-enhancing layer is prepared by adopting a spunlace process.

6. A single-layer waterproof structure, characterized in that: include: The adhesion-enhancing composite film according to any one of claims 1 to 5; A first waterproof structure is provided on the lower surface of the base layer of the adhesion-promoting composite film.

7. The single-layer waterproof structure according to claim 6, characterized in that: The first waterproof structure comprises: A first asphalt adhesive layer, wherein the first asphalt adhesive layer is disposed on the lower surface of the base layer; A first release layer is removably disposed on the lower surface of the first asphalt adhesive layer.

8. A double-layer waterproof structure, characterized in that: include: The adhesion-enhancing composite film according to any one of claims 1 to 5; A first waterproof structure, the first waterproof structure is arranged on the lower surface of the base layer of the adhesion-promoting composite film; A second waterproof structure is provided on the upper surface of the adhesion-promoting layer of the adhesion-promoting composite film.

9. The double-layer waterproof structure according to claim 8, characterized in that: The first waterproof structure comprises: A first asphalt adhesive layer, wherein the first asphalt adhesive layer is disposed on the lower surface of the base layer; A first release layer, wherein the first release layer is removably disposed on a lower surface of the first asphalt adhesive layer; and / or The second waterproof structure comprises: A second asphalt adhesive layer, wherein the second asphalt adhesive layer is arranged on the upper surface of the adhesion-promoting layer.

10. The double-layer waterproof structure according to claim 9, characterized in that: The second waterproof structure also includes: A second release layer is removably disposed on the lower surface of the second asphalt adhesive layer, and is used to connect the second asphalt adhesive layer to the adhesion-promoting layer when the second release layer is separated from the second asphalt adhesive layer.

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