Polymer asphalt composite waterproof coiled material

Abstract

The polymer asphalt composite waterproof coiled material comprises an asphalt self-adhesion waterproof layer, a polymer asphalt waterproof layer and a polymer asphalt waterproof layer which are arranged in a laminated manner, the impermeable layer is arranged on at least one side of the two opposite side surfaces of the asphalt self-adhesion waterproof layer; and the macromolecular sheet waterproof layer is distributed on the surface of one side, deviating from the asphalt self-adhesion waterproof layer, of the impermeable layer in an extending manner. According to the polymer asphalt composite waterproof coiled material disclosed by the embodiment of the invention, the impermeable layer is used for preventing oil in the asphalt self-adhesion waterproof layer from migrating to the polymer sheet waterproof layer in a physical blocking or oil migration hindering manner, so that the oil in the asphalt self-adhesion waterproof layer can be effectively prevented from permeating and migrating to the polymer sheet waterproof layer; the color change of the appearance of the waterproof coiled material is avoided.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of building waterproof materials, and particularly relates to a high-molecular asphalt composite waterproof roll. BACKGROUND

[0002] Research shows that the existing high-molecular asphalt composite waterproof roll directly pastes the self-adhesive asphalt waterproof roll layer on the TPO waterproof roll layer, oil in the self-adhesive asphalt waterproof roll layer will migrate and penetrate into the TPO waterproof roll layer, causing the appearance color of the TPO waterproof roll layer to change, which seriously affects the appearance of the waterproof roll. There is no better solution to this problem at present. The TPO waterproof roll layer is a structural layer formed of a thermoplastic polyolefin high-molecular material. CONTENT OF THE UTILITY MODEL

[0003] The application provides a high-molecular asphalt composite waterproof roll, which can effectively prevent oil in the asphalt self-adhesive waterproof layer from penetrating into the high-molecular sheet waterproof layer and prevent the appearance of the waterproof roll from discoloring due to the penetration and migration of oil in the asphalt self-adhesive waterproof layer.

[0004] In a first aspect, the embodiments of the application provide a high-molecular asphalt composite waterproof roll, which comprises the following layers arranged in a stack: an asphalt self-adhesive waterproof layer; a penetration-preventing layer arranged on at least one of the two opposite surfaces of the asphalt self-adhesive waterproof layer; and a high-molecular sheet waterproof layer extending and distributed on the surface of the penetration-preventing layer away from the asphalt self-adhesive waterproof layer. The penetration-preventing layer is used to block the migration of oil in the asphalt self-adhesive waterproof layer to the high-molecular sheet waterproof layer.

[0005] According to an aspect of the embodiments of the application, the penetration-preventing layer is a multi-layer composite structure to block the migration and penetration of oil or to prolong the migration and penetration path length of oil.

[0006] According to an aspect of the embodiments of the application, the penetration-preventing layer comprises a composite structure layer formed by the combination of an HDPE layer and an EVOH layer.

[0007] According to an aspect of the embodiments of the application, the penetration-preventing layer comprises a composite structure layer formed by the combination of an HDPE layer, a transition layer, an EVOH layer, a transition layer and an HDPE layer.

[0008] According to an aspect of the embodiments of the application, the penetration-preventing layer comprises a composite structure layer formed by the combination of an EVA layer and a PET layer.

[0009] According to an aspect of the embodiments of the application, the penetration-preventing layer comprises a surface connected to the asphalt self-adhesive waterproof layer and a connecting part protruding towards the penetration-preventing layer.

[0010] According to an aspect of the embodiments of the application, the penetration-preventing layer comprises a connecting part protruding towards the asphalt self-adhesive waterproof layer.

[0011] According to an aspect of the embodiments of the present application, the impervious layer comprises a surface connected to the polymer sheet waterproof layer and a connecting portion protruding towards the polymer sheet waterproof layer.

[0012] According to an aspect of the embodiments of the present application, the impervious layer comprises a connecting portion protruding towards the polymer sheet waterproof layer and / or the asphalt self-adhesive waterproof layer.

[0013] According to an aspect of the embodiments of the present application, the area between adjacent connecting portions is sealed and bonded by oil-resistant adhesive.

[0014] According to an aspect of the embodiments of the present application, the impervious layer comprises a surface connected to the asphalt self-adhesive waterproof layer and a drainage channel recessed towards the asphalt self-adhesive waterproof layer.

[0015] According to an aspect of the embodiments of the present application, the impervious layer comprises a surface connected to the asphalt self-adhesive waterproof layer and a drainage channel recessed towards the asphalt self-adhesive waterproof layer.

[0016] According to an aspect of the embodiments of the present application, the impervious layer comprises a meshed polyester base layer and an oil-resistant adhesive layer covering the polyester base layer.

[0017] According to an aspect of the embodiments of the present application, the polymer asphalt composite waterproof roll further comprises a cover layer arranged on the surface of the polymer sheet waterproof layer away from the impervious layer.

[0018] According to an aspect of the embodiments of the present application, the cover layer is made of one of a polyester fiber cloth, a polyester geotextile, or a composite layer formed by the two materials.

[0019] According to an aspect of the embodiments of the present application, the cover layer comprises a hot melt adhesive layer and an adhesive particle layer covering the hot melt adhesive layer.

[0020] According to an aspect of the embodiments of the present application, the grammage of the hot melt adhesive layer is 150g / m 2 ~220g / m 2 , and the adhesive particle layer is formed by sand with a mesh size of 20 mesh to 50 mesh.

[0021] According to an aspect of the embodiments of the present application, the polymer sheet waterproof layer covers the impervious layer and extends along the first direction to form a lap portion protruding from the impervious layer.

[0022] According to an aspect of the embodiments of the present application, the width of the lap portion is 50mm to 200mm.

[0023] According to an aspect of the embodiments of the present application, the thickness of the polymer sheet waterproof layer is 0.5mm to 2.0mm.

[0024] According to an aspect of the embodiment of the present application, the thickness of the anti-permeation layer is 0.08mm-0.1mm.

[0025] According to an aspect of the embodiment of the present application, the thickness of the asphalt self-adhesive waterproof layer is 1.0mm-1.5mm.

[0026] According to an aspect of the embodiment of the present application, the side of the asphalt self-adhesive waterproof layer facing away from the anti-permeation layer is provided with an isolation layer.

[0027] According to an aspect of the embodiment of the present application, the thickness of the isolation layer is 0.01mm-0.1mm.

[0028] The polymer asphalt composite waterproof roll material of the embodiment of the present application, by setting an anti-permeation layer between the asphalt self-adhesive waterproof layer and the polymer sheet waterproof layer, i.e. by physically blocking or hindering the migration of oil, can effectively prevent the migration of oil in the asphalt self-adhesive waterproof layer into the thermoplastic polyolefin, and prevent the discoloration of the appearance of the polymer asphalt composite waterproof roll material caused by the migration of oil in the asphalt self-adhesive waterproof layer. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be briefly introduced below. Those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0030] Figure 1 is a structural schematic diagram of the polymer asphalt composite waterproof roll material provided by the embodiment 1.

[0031] Figure 2 is Figure 1 is a structural schematic diagram of the anti-permeation layer in

[0032] Figure 3 is a structural schematic diagram of the polymer asphalt composite waterproof roll material provided by the embodiment 2.

[0033] Figure 4 is a structural schematic diagram of the cover layer in the polymer asphalt composite waterproof roll material of the embodiment 3.

[0034] Figure 5 is a structural schematic diagram of the polymer asphalt composite waterproof roll material provided by the embodiment 4.

[0035] Figure 6 is a structural schematic diagram of the polymer asphalt composite waterproof roll material provided by the embodiment 4.

[0036] Figure 7 is a structural schematic diagram of the polymer asphalt composite waterproof roll material provided by the embodiment 5.

[0037] Figure 8 This is a schematic diagram of the structure of the polymer bitumen composite waterproof membrane provided in Example 6.

[0038] Explanation of reference numerals in the attached drawings: 1. Polymer sheet waterproof layer; 2. Seepage-proof layer; 20. HDPE layer; 21. Transition layer; 22. EVOH layer; 24. Polyester reinforcing layer; 25. Oil-resistant adhesive layer formed by oil-resistant adhesive material; 26. Composite structural layer formed by EVA layer and PET layer; 3. Asphalt self-adhesive waterproof layer; 30. Connection part; 31. Drainage channel; 4. Isolation layer; 5. Covering layer; 50. Polyester fiber cloth and / or polyester geotextile layer; 51. Hot melt adhesive layer; 52. Adhesive particle layer; 6. Overlap; X1, First direction. Detailed Implementation

[0039] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0041] As described in the background section, oil in the self-adhesive bitumen waterproof membrane layer can penetrate into the TPO waterproof membrane, causing discoloration of the TPO waterproof membrane layer and thus affecting the appearance of the waterproof membrane.

[0042] To standardize the waterproofing performance of building and municipal engineering projects, and to ensure personal health, safety of life and property, ecological environment safety, and the quality of waterproofing projects, GB 55030-2022, the "General Specification for Waterproofing of Building and Municipal Engineering Projects," has set higher requirements for the waterproofing industry. In response to the development of the waterproofing industry and to address the aforementioned problems in existing technologies, this application provides a polymer bitumen composite waterproofing membrane. The polymer bitumen composite waterproofing membrane provided in this application embodiment will be described below.

[0043] Figure 1 A schematic diagram of the structure of a polymer bitumen composite waterproof membrane according to an embodiment of this application is shown. Figure 1 As shown, the polymer-modified bitumen composite waterproof membrane includes the following layers: a self-adhesive bitumen waterproof layer 3; an impermeable layer 2 disposed on at least one of the opposite surfaces of the self-adhesive bitumen waterproof layer 3; and a polymer sheet waterproof layer 1 extending from the surface of the impermeable layer 2 opposite to the self-adhesive bitumen waterproof layer 3. The impermeable layer is used to prevent oil from migrating from the self-adhesive bitumen waterproof layer to the polymer sheet waterproof layer.

[0044] This application's polymer-asphalt composite waterproof membrane, by setting an anti-seepage layer between the asphalt self-adhesive waterproof layer and the polymer sheet waterproof layer, physically blocks or hinders oil migration, preventing oil in the asphalt self-adhesive waterproof layer from migrating and penetrating into the polymer sheet waterproof layer. This prevents changes in the appearance of the polymer sheet waterproof layer and thus avoids affecting the appearance of the polymer-asphalt composite waterproof membrane. Furthermore, by combining the polymer sheet waterproof layer, the anti-seepage layer, and the asphalt self-adhesive waterproof layer, this application's polymer-asphalt composite waterproof membrane achieves two layers of waterproofing in a single application, effectively reducing the number of construction steps and saving time and labor costs.

[0045] In some embodiments of this application, the seepage-proof layer is a multi-layer composite structure, which blocks oil from penetrating and migrating from the asphalt self-adhesive waterproof layer 3 to the polymer sheet waterproof layer 1 through the multi-layer structure of the multi-layer composite structure in the seepage-proof layer, or extends the length of the oil migration and penetration path, so as to prevent the overall appearance of the polymer asphalt composite waterproof membrane from changing due to the oil migration of the asphalt self-adhesive waterproof layer.

[0046] In some embodiments, the polymer bitumen composite waterproof membrane is a waterproof membrane without a covering layer, wherein the thickness of the polymer sheet waterproof layer 1 is 1.5mm to 1.8mm, the thickness of the seepage-proof layer 2 is 0.08mm to 0.1mm, the thickness of the bitumen self-adhesive waterproof layer 3 is 1.0mm to 1.5mm, the thickness of the isolation layer is 0.01mm to 0.1mm, and the width of the overlap 6 is 80mm to 200mm.

[0047] In some embodiments, the polymer sheet waterproofing layer in the polymer bitumen composite waterproof membrane can be made of thermoplastic polyolefin (TPO) sheet or HDPE sheet.

[0048] In some embodiments, the waterproof layer comprises a composite structure layer formed by an HDPE layer and an EVOH layer. The HDPE layer is connected to the polymer sheet waterproof layer, and the EVOH layer is connected to the asphalt self-adhesive waterproof layer.

[0049] In other embodiments, such as Figure 2 As shown, the waterproof layer 2 comprises a composite structure layer formed by an HDPE layer 20, a transition layer 21, an EVOH layer 22, and an HDPE layer 20. One HDPE layer is connected to the polymer sheet waterproof layer, and the other HDPE layer is connected to the asphalt self-adhesive waterproof layer.

[0050] In the embodiments of this application, the transition layer is made of grafted modified polyolefin, so as to more effectively combine the HDPE layer and the EVOH layer into a composite structural layer. Exemplarily, the transition layer may be a composite layer or co-extruded layer material selected from maleic anhydride grafted modified polyolefin, acrylic acid grafted modified polyolefin, methacrylic acid grafted modified polyolefin, styrene grafted modified polyolefin, and glycidyl methacrylate grafted modified polyolefin. The HDPE layer is a high-density polyethylene layer, and the EVOH layer refers to a structural layer made of ethylene-vinyl alcohol copolymer. Ethylene-vinyl alcohol copolymer not only exhibits excellent processing performance, but its structural layer also shows excellent blocking effect against oils and small molecules. Therefore, this application utilizes the EVOH layer formed therein to block the migration and penetration of oil from the asphalt self-adhesive waterproof layer 3 to the polymer sheet waterproof layer 1; simultaneously, the HDPE layer ensures compatibility with the polymer sheet waterproof layer and further combines with the transition layer and EVOH layer to prevent oil from migrating and penetrating from the asphalt self-adhesive waterproof layer 3 to the polymer sheet waterproof layer 1, preventing changes in the appearance and color of the polymer sheet waterproof layer, thereby avoiding affecting the appearance of the polymer asphalt composite waterproof membrane. The HDPE layer and EVOH layer, or the HDPE layer, transition layer, and EVOH layer, can be composited into a seepage-proof layer by hot-press welding or bonding.

[0051] In some embodiments, the waterproof layer 2 comprises a composite structure layer formed by combining an EVA layer and a PET layer. The PET layer is connected to the polymer sheet waterproof layer, and the EVA layer is connected to the asphalt self-adhesive waterproof layer.

[0052] In the embodiments of this application, the EVA layer is a structural layer made of ethylene-vinyl acetate copolymer, and the PET layer is a structural layer made of polyethylene terephthalate. The composite structural layer formed by the EVA layer and the PET layer serves as the seepage-proof layer 2. While maintaining the flexibility of the waterproof membrane, it enables the polymer asphalt composite waterproof membrane to have good oil barrier properties, preventing oil from migrating from the asphalt self-adhesive waterproof layer 3 and penetrating into the polymer sheet waterproof layer 1, preventing changes in the appearance and color of the polymer sheet waterproof layer, and thus avoiding affecting the appearance of the polymer asphalt composite waterproof membrane.

[0053] In some embodiments, such as Figure 5 As shown, the impermeable layer 2 includes a surface where the self-adhesive asphalt waterproof layer 3 connects to the impermeable layer 2, and a connecting portion 30 protruding towards the impermeable layer 2. The connecting portion 30 on the side of the self-adhesive asphalt waterproof layer 3 enables contact connection between the self-adhesive asphalt waterproof layer 3 and the impermeable layer 2, reducing the contact area between the self-adhesive asphalt waterproof layer and the impermeable layer, extending the penetration path of oil, and hindering the migration and penetration of oil in the self-adhesive asphalt waterproof layer through the impermeable layer to the polymer sheet waterproof layer 1, thus preventing changes in the appearance color of the polymer sheet waterproof layer 1 and avoiding affecting the appearance color of the polymer asphalt composite waterproof membrane.

[0054] In some embodiments, such as Figure 5 As shown, the impermeable layer 2 includes a surface connecting the polymer sheet waterproof layer 1 and the impermeable layer 2, and a connecting portion 30 protruding towards the impermeable layer 2. The connecting portion 30 on the side of the polymer sheet waterproof layer 1 further reduces the contact area between the asphalt self-adhesive waterproof layer and the impermeable layer, hindering the migration and penetration of oil from the impermeable layer into the polymer sheet waterproof layer 1. It should be noted that, to clearly indicate the possible locations of the connecting portion 30, Figure 5 The oil-blocking adhesive material is not shown in the diagram. The impermeable layer 2 also includes an adhesive layer formed by the oil-blocking adhesive material that bonds the joints together.

[0055] It is understood that in some embodiments, the impermeable layer 2 may also include a connecting portion 30 protruding from the impermeable layer 2 toward the asphalt self-adhesive waterproof layer 3. The connecting portion 30 on one side of the impermeable layer 2 further reduces the contact area between the asphalt self-adhesive waterproof layer and the impermeable layer, thereby hindering the migration and penetration of the oil impermeable layer into the polymer sheet waterproof layer 1.

[0056] It is understood that, in some embodiments, the impermeable layer 2 includes a connecting portion protruding from the impermeable layer toward the polymer sheet waterproof layer. The connecting portion 30 on the other side of the impermeable layer 2 further reduces the contact area between the asphalt self-adhesive waterproof layer and the impermeable layer, hindering the migration and penetration of oil impermeable layer into the polymer sheet waterproof layer 1.

[0057] In some embodiments, the polymer sheet waterproof layer 1 can be laminated with the impermeable layer 2 before the extrusion molding process cools down, thus eliminating the need for adhesive materials between the polymer sheet waterproof layer and the impermeable layer. The asphalt self-adhesive waterproof layer, on the other hand, is inherently adhesive and can be directly bonded to the impermeable layer. Therefore, no adhesive material may be required between the impermeable layer and the asphalt self-adhesive waterproof layer.

[0058] Of course, it is understandable that the areas between adjacent joints on opposite sides of the asphalt self-adhesive waterproof layer, polymer sheet waterproof layer, and impermeable layer can be sealed and bonded using oil-resistant adhesives. Oil-resistant adhesives can be one of epoxy resin, acrylic ester, silicone sealant, silicone glue, oil-resistant AB adhesive, SBS, and SBR pressure-sensitive adhesives.

[0059] For example, such as Figure 6 As shown, the area between adjacent joints of the asphalt self-adhesive waterproof layer and the polymer sheet waterproof layer can use oil-resistant adhesives, such as pressure-sensitive adhesives of SBS and SBR, for sealing and bonding. The joints 30 located at different positions in the asphalt self-adhesive waterproof layer, the polymer sheet waterproof layer, and the anti-seepage layer can be combined to further extend the path length for oil migration and penetration. For example, a joint located on at least one of the opposite surfaces of the anti-seepage layer can be combined with a joint located in either the asphalt self-adhesive waterproof layer or the polymer sheet waterproof layer, or a joint located in both the asphalt self-adhesive waterproof layer and the polymer sheet waterproof layer can be combined. It should be noted that the joints located on the opposite surfaces of the asphalt self-adhesive waterproof layer, the polymer sheet waterproof layer, and the anti-seepage layer can be formed by protrusions of the same material from the corresponding asphalt self-adhesive waterproof layer, the polymer sheet waterproof layer, and the anti-seepage layer.

[0060] It is understood that in the polymer bitumen composite waterproof membrane of this application embodiment, the connecting part 30 can be set separately or combined with the composite structural layer with multiple structural layers in the seepage prevention layer 2.

[0061] In some embodiments, such as Figure 5 As shown, the adjacent connecting parts on the opposite sides of the asphalt self-adhesive waterproof layer, the polymer sheet waterproof layer, and the seepage-proof layer are arranged independently and alternately.

[0062] In the above scheme, the protruding thickness of the surface of the self-adhesive asphalt waterproof layer, the surface of the polymer sheet waterproof layer, and the surface of the seepage-proof layer of the connecting part 30 can be less than, equal to, or greater than the thickness of the composite structure layer of the seepage-proof layer. This application does not make a specific limitation on this.

[0063] In the embodiments of this application, the connecting portions on the surfaces of the asphalt self-adhesive waterproof layer, the polymer sheet waterproof layer, and the anti-seepage layer can be independently distributed in a dot matrix pattern, or they can be continuously distributed in a strip pattern on the surfaces of the asphalt self-adhesive waterproof layer, the polymer sheet waterproof layer, and the anti-seepage layer. For example, perpendicular to... Figure 1 , 3 The connecting parts of sections 5, 6, and 7 are continuously arranged from the inside out or from the outside in the cross-section (view direction), or are inclined at a certain angle to the cross-section (such as 15°, 30°, 45°, 60°, 75°, 90°, 120°, 135°, 150°, 175°, 190°, 200°, 210°, 240°).

[0064] In some embodiments, the impermeable layer 2 includes a surface where the self-adhesive bitumen waterproof layer 3 connects to the impermeable layer 2, and a drainage channel 31 recessed toward the self-adhesive bitumen waterproof layer 3. Preferably, the recessed drainage channel is provided in the self-adhesive bitumen waterproof layer.

[0065] In some embodiments, such as Figure 7 As shown, the impermeable layer 2 includes a surface where the self-impermeable layer 2 connects to the asphalt self-adhesive waterproof layer 3, and a drainage channel 31 that is recessed towards the impermeable layer 2.

[0066] In the embodiments of this application, the impermeable layer 2, by providing drainage channels 31 within itself or within the asphalt self-adhesive waterproof layer, allows oil in the asphalt self-adhesive waterproof layer 3 to be collected and discharged through the drainage channels 31, preventing oil from migrating and penetrating through the composite structure layer of the impermeable layer into the polymer sheet waterproof layer. Simultaneously, the drainage channels 31 reduce the contact area between the asphalt self-adhesive waterproof layer 3 and the impermeable layer 2, further preventing oil in the asphalt self-adhesive waterproof layer 3 from migrating and penetrating into the polymer sheet waterproof layer 1, and preventing changes in the appearance and color of the polymer sheet waterproof layer. Optionally, in some embodiments, the space of the drainage channels 31 can be filled with an oil-resistant adhesive material to firmly connect the impermeable layer 2 and the asphalt self-adhesive waterproof layer.

[0067] In some embodiments, such as Figure 8 As shown, the seepage-proof layer 2 includes a mesh-like polyester layer 24 and an oil-resistant adhesive layer 25 covering the polyester layer 24.

[0068] In the embodiments of this application, the oil-blocking adhesive layer 25 is formed by impregnating and covering the polyester layer 24 with an oil-blocking adhesive material. The oil-blocking adhesive material prevents oil from migrating and penetrating through the oil-blocking adhesive layer into the polymer sheet waterproof layer. The polyester layer 24 is impregnated and covered with an oil-blocking adhesive material to bond the seepage-proof layer to the asphalt self-adhesive waterproof layer 3 and the polymer sheet waterproof layer. The polyester layer is formed of polyester fiber, glass fiber, or glass fiber reinforced polyester fiber. The mesh-like polyester fiber, glass fiber, or glass fiber reinforced polyester fiber in the polyester layer extends or avoids the path of oil penetration, further hindering the migration and penetration of oil from the asphalt self-adhesive waterproof layer into the polymer sheet waterproof layer, preventing changes in the appearance and color of the polymer sheet waterproof layer, and avoiding affecting the appearance of the polymer asphalt composite waterproof membrane.

[0069] In some embodiments, the polymer bitumen composite waterproof membrane further includes a covering layer 5, which is disposed on the side surface of the polymer sheet waterproof layer 1 facing away from the seepage-proof layer 2.

[0070] In the embodiments of this application, the covering layer 5 is used to protect the polymer sheet waterproof layer 1 and prevent the polymer bitumen composite waterproof membrane from being damaged.

[0071] In some embodiments, the covering layer 5 is made of a composite layer formed from one or two of polyester fiber cloth and polyester geotextile.

[0072] In some embodiments, the polymer bitumen composite waterproof membrane is a waterproof membrane containing a covering layer, wherein, for example... Figure 3 As shown, the polyester fiber cloth or polyester geotextile 50 forming the covering layer 5 has a basis weight of 150 g / cm³. 2 ~200g / cm 2 The thickness of the polymer sheet waterproof layer 1 is 1.5mm to 1.8mm, the thickness of the seepage-proof layer 2 is 0.08mm to 0.1mm, the thickness of the asphalt self-adhesive waterproof layer 3 is 1.0mm to 1.5mm, the thickness of the isolation layer is 0.01mm to 0.1mm, and the width of the overlap 6 is 80mm to 200mm.

[0073] In some embodiments, such as Figure 4 As shown, the covering layer 5 includes a hot melt adhesive layer 51 and an adhesive particle layer 52 covering the hot melt adhesive layer 51. The hot melt adhesive layer 51 is a hot melt adhesive applied to the side of the polymer sheet waterproof layer 1 opposite to the seepage-proof layer 2.

[0074] In some embodiments, the polymer bitumen composite waterproof membrane is a waterproof membrane containing a covering layer, wherein the thickness of the polymer sheet waterproof layer 1 is 1.2mm to 1.8mm, the thickness of the seepage-proof layer 2 is 0.08mm to 0.1mm, the thickness of the bitumen self-adhesive waterproof layer 3 is 1.0mm to 1.5mm, the thickness of the isolation layer is 0.01mm to 0.1mm, the width of the overlap 6 is 80mm, and the basis weight of the hot melt adhesive layer 51 in the covering layer 5 is 150g / m². 2 ~220g / m 2 The adhesive granular layer 52 is formed of sand with a mesh size of 20 to 50 mesh, and the width of the overlap 6 is 80 mm to 200 mm.

[0075] In some embodiments, the sand may be one or a combination of two of reactive sand and quartz sand.

[0076] In some embodiments, the polymer sheet waterproof layer 1 covers the impermeable layer 2 and extends outward along the first direction X1 to form an overlap 6. The overlap 6 facilitates connection with adjacent polymer bitumen composite waterproof membranes, thereby connecting the polymer bitumen composite waterproof membranes into a single waterproof membrane layer.

[0077] In some embodiments, the first direction X1 is the direction in which the polymer sheet waterproofing layer 1 covers the impermeable layer 2 in the cross-section of the polymer bitumen composite waterproof membrane, extending from one end to the other and protruding beyond the bitumen self-adhesive waterproofing layer. In other embodiments, the first direction X1 is the direction of the polymer sheet waterproofing layer 1 in the polymer bitumen composite waterproof membrane from the side covering the impermeable layer to the side away from the impermeable layer, that is, the polymer sheet waterproofing layer 1 of the polymer bitumen composite waterproof membrane extends from the middle containing the impermeable layer to the edge without the impermeable layer.

[0078] It should be noted that, in the appendix Figure 1 , 3 In diagrams 5, 6, 7, and 8, the overlapping portion 6 is shown as an extension from one end to the other, protruding from the asphalt self-adhesive waterproof layer, formed by the polymer sheet waterproof layer 1 covering the seepage-proof layer 2 along the first direction X1 in the cross-sectional schematic diagram of the polymer asphalt composite waterproof membrane. However, in practice, the overlapping portion 6 can be set at any edge of the overall shape of the polymer asphalt composite waterproof membrane. For example, if the polymer asphalt composite waterproof membrane is rectangular, the polymer sheet waterproof layer can cover the edge of the rectangular seepage-proof layer in the polymer asphalt composite waterproof membrane with the overlapping portion 6.

[0079] In some embodiments, the width of the overlap 6 is 50mm to 200mm.

[0080] In some embodiments, an isolation layer 4 is provided on the side of the asphalt self-adhesive waterproof layer 3 facing away from the seepage-proof layer 2. Optionally, the thickness of the isolation layer is 0.01 mm to 0.1 mm. In some embodiments, the thickness of the isolation layer is 0.03 mm to 0.05 mm, or 0.05 mm to 0.08 mm.

[0081] 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.

[0082] Example 1

[0083] like Figure 1 As shown, a polymer-modified bitumen composite waterproof membrane, which is a polymer-modified bitumen composite waterproof membrane without a covering layer, includes the following layers: a self-adhesive bitumen waterproof layer 3; a waterproof layer 2 disposed on one of the two opposing surfaces of the self-adhesive bitumen waterproof layer 3; and a polymer sheet waterproof layer 1 extending from the surface of the waterproof layer 2 opposite to the self-adhesive bitumen waterproof layer 3. The polymer sheet waterproof layer 1 covers the waterproof layer 2 and protrudes along a first direction X1 beyond the waterproof layer 2 to form an overlap 6. Figure 2 As shown, the polymer sheet waterproof layer 1 is a thermoplastic polyolefin (TPO) sheet. The anti-seepage layer 2 includes an HDPE layer 20, a transition layer 21, an EVOH layer 22, and another HDPE layer 20, forming a composite structure layer composed of five structural layers. The uppermost HDPE layer is connected to the polymer sheet waterproof layer, and the lowermost HDPE layer is connected to the asphalt self-adhesive waterproof layer. The anti-seepage layer 2 prevents oil from the asphalt self-adhesive waterproof layer 3 from penetrating into the polymer sheet waterproof layer 1, preventing discoloration of the waterproof membrane due to oil penetration and migration, and avoiding affecting the appearance of the polymer asphalt composite waterproof membrane. The polymer sheet waterproof layer 1 has a thickness of 1.5 mm, the anti-seepage layer 2 has a thickness of 0.08 mm, the asphalt self-adhesive waterproof layer 3 has a thickness of 1.0 mm, the isolation layer has a thickness of 0.03 mm, and the overlap 6 has a width of 80 mm.

[0084] Example 2

[0085] like Figure 3As shown, a polymer-modified bitumen composite waterproof membrane includes the following layers: a self-adhesive bitumen waterproof layer 3; a waterproof layer 2 disposed on one of the two opposing surfaces of the self-adhesive bitumen waterproof layer 3; a polymer sheet waterproof layer 1 extending from the waterproof layer 2 on the side opposite to the self-adhesive bitumen waterproof layer 3; a release layer 4 extending from the self-adhesive bitumen waterproof layer 3 on the side opposite to the waterproof layer 2; and a cover layer 5 extending from the polymer sheet waterproof layer 1 on the side opposite to the waterproof layer 2. The polymer sheet waterproof layer 1 is a thermoplastic polyolefin (TPO) sheet. The waterproof layer 2 comprises an HDPE layer, a transition layer, an EVOH layer, and another HDPE layer, forming a composite structure of five layers. The uppermost HDPE layer is connected to the polymer sheet waterproof layer, and the lowermost HDPE layer is connected to the self-adhesive bitumen waterproof layer. The impermeable layer 2 prevents oil from the asphalt self-adhesive waterproof layer 3 from penetrating into the polymer sheet waterproof layer 1, thus preventing discoloration of the waterproof membrane due to oil penetration and migration from the asphalt self-adhesive waterproof layer. The polymer sheet waterproof layer 1 covers the impermeable layer 2 and extends outward along the first direction X1 to form an overlap 6. The covering layer 5 has a basis weight of 150g / m². 2 It is made of polyester geotextile 50. Among them, the thickness of the polymer sheet waterproof layer 1 is 1.5mm, the thickness of the seepage prevention layer 2 is 0.08mm, the thickness of the asphalt self-adhesive waterproof layer 3 is 1.0mm, the thickness of the isolation layer 4 is 0.03mm, and the width of the overlap 6 is 80mm.

[0086] Example 3

[0087] refer to Figure 3 As shown, a polymer-modified bitumen composite waterproof membrane includes the following layers: a self-adhesive bitumen waterproof layer 3; a waterproof layer 2 disposed on one of the two opposing surfaces of the self-adhesive bitumen waterproof layer 3; a polymer sheet waterproof layer 1 extending from the waterproof layer 2 on the side of the waterproof layer 2 opposite to the self-adhesive bitumen waterproof layer 3; a release layer 4 extending from the waterproof layer 3 on the side of the self-adhesive bitumen waterproof layer 3 opposite to the waterproof layer 2; and a cover layer 5 extending from the waterproof layer 1 on the side of the waterproof layer 1 opposite to the waterproof layer 2. The polymer sheet waterproof layer 1 is a high-density polyethylene (HDPE) sheet. The waterproof layer 2 comprises a composite structure layer formed by an HDPE layer and an EVOH layer (the structures of the HDPE and EVOH layers are not shown). The HDPE layer is connected to the polymer sheet waterproof layer, and the EVOH layer is connected to the self-adhesive bitumen waterproof layer. The waterproof layer 2 prevents oil from the self-adhesive bitumen waterproof layer 3 from penetrating into the polymer sheet waterproof layer 1, thus preventing discoloration of the waterproof membrane due to oil penetration and migration from the self-adhesive bitumen waterproof layer. A polymer sheet waterproof layer 1 covers the seepage-proof layer 2 and extends beyond the seepage-proof layer 2 along the first direction X1 to form an overlap 6. For example... Figure 4As shown, the cover layer 5 includes a hot melt adhesive layer 51 and an adhesive particle layer 52 covering the hot melt adhesive layer 51. The basis weight of the hot melt adhesive in the hot melt adhesive layer of the cover layer 5 is 200 g / m³. 2 The adhesive granular layer 52 is formed by covering the hot melt adhesive layer 51 with 40-mesh quartz sand. Among them, the thickness of the polymer sheet waterproof layer 1 is 1.5mm, the thickness of the seepage-proof layer 2 is 0.08mm, the thickness of the asphalt self-adhesive waterproof layer 3 is 1.0mm, the thickness of the isolation layer is 0.03mm, and the width of the overlap 6 is 80mm.

[0088] Example 4

[0089] like Figure 5 As shown, a polymer-modified bitumen composite waterproof membrane includes the following layers: a self-adhesive bitumen waterproof layer 3; a waterproof layer 2 disposed on one of the opposite surfaces of the self-adhesive bitumen waterproof layer 3; a polymer sheet waterproof layer 1 extending from the surface of the waterproof layer 2 away from the self-adhesive bitumen waterproof layer 3; a separating layer 4 extending from the surface of the self-adhesive bitumen waterproof layer 3 away from the waterproof layer 2; and a covering layer 5 extending from the surface of the polymer sheet waterproof layer 1 away from the waterproof layer 2. The polymer sheet waterproof layer 1 is a thermoplastic polyolefin (TPO) sheet. The waterproof layer 2 includes a composite structure layer 26 formed by an EVA layer and a PET layer, where the PET layer connects to the polymer sheet waterproof layer and the EVA layer connects to the self-adhesive bitumen waterproof layer. The waterproof layer 2 also includes a connecting portion 30 protruding towards the waterproof layer 2 from the surface where the self-adhesive bitumen waterproof layer 3 connects to the waterproof layer 2, and a connecting portion 30 protruding towards the waterproof layer 2 from the surface where the polymer sheet waterproof layer 1 connects to the waterproof layer 2. Figure 6 As shown, the area between the connecting portions 30 adjacent to the asphalt self-adhesive waterproof layer and the polymer sheet waterproof layer uses oil-resistant adhesive materials, namely SBS and SBR pressure-sensitive adhesives, to seal and bond them together, forming an oil-resistant adhesive layer 25. Preferably, the oil-resistant adhesive material covers the composite structure layer 26 formed by the EVA layer and the PET layer. The impermeable layer 2 prevents oil in the asphalt self-adhesive waterproof layer 3 from penetrating into the polymer sheet waterproof layer 1, and the connecting portions 30 reduce the contact area between the asphalt self-adhesive waterproof layer and the impermeable layer, and between the polymer sheet waterproof layer and the impermeable layer, respectively, extending the penetration path of the oil and preventing discoloration of the polymer asphalt composite waterproof membrane due to oil penetration and migration from the asphalt self-adhesive waterproof layer. The polymer sheet waterproof layer 1 covers the impermeable layer 2 and extends outward along the first direction X1 to form an overlap 6. The covering layer 5 has a basis weight of 150 g / m². 2 It is made of polyester geotextile 50. Among them, the thickness of the polymer sheet waterproof layer 1 is 1.5mm, the thickness of the seepage prevention layer 2 is 0.08mm, the thickness of the asphalt self-adhesive waterproof layer 3 is 1.0mm, the thickness of the isolation layer is 0.03mm, and the width of the overlap 6 is 80mm.

[0090] Example 5

[0091] like Figure 7 As shown, a polymer asphalt composite waterproof membrane differs from the polymer asphalt composite waterproof membrane of Example 2 in that: the surface of the anti-seepage layer 2 connecting the anti-seepage layer 2 and the asphalt self-adhesive waterproof layer 3 has a drainage channel 31 that faces inward towards the anti-seepage layer 2. This allows oil in the asphalt self-adhesive waterproof layer 3 to collect and be discharged through the drainage channel 31, while also reducing the contact area between the asphalt self-adhesive waterproof layer 3 and the anti-seepage layer 2, preventing oil from migrating and penetrating through the composite structure layer of the anti-seepage layer to the polymer sheet waterproof layer. The area occupied by the drainage channel is bonded using SBS and SBR pressure-sensitive adhesives as oil-blocking bonding materials. Figure 7 Not shown in the image, please refer to the following: Figure 5 and Figure 6 The structure of the medium-resistance oil adhesive layer 25.

[0092] Example 6

[0093] like Figure 8 As shown, a polymeric bitumen composite waterproof membrane differs from Example 2 in that: the seepage-proof layer 2 includes a mesh-like polyester base layer 24 and an oil-blocking adhesive layer 25 covering the polyester base layer 24. The oil-blocking adhesive layer 25 is formed using SBS and SBR pressure-sensitive adhesives as oil-blocking adhesive materials, preventing oil from migrating and penetrating through the oil-blocking self-adhesive layer to the thermoplastic polyolefin layer. The polyester base layer 24 is impregnated and covered with an oil-blocking adhesive material to bond the seepage-proof layer to the bitumen self-adhesive waterproof layer 3 and the polymer sheet waterproof layer. The polyester base layer is formed of polyester fibers, and the mesh-like polyester fibers of the polyester base layer extend the path of oil penetration, further hindering the migration and penetration of oil from the bitumen self-adhesive waterproof layer into the polymer sheet waterproof layer, and preventing changes in the appearance and color of the polymer sheet waterproof layer.

[0094] The above description is merely a specific implementation of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. A polymer bitumen composite waterproof membrane, characterized in that, Including stacked settings: Asphalt self-adhesive waterproof layer (3); An impermeable layer (2) is disposed on at least one of the two surfaces opposite to the asphalt self-adhesive waterproof layer (3); The polymer sheet waterproof layer (1) extends and is distributed on the surface of the anti-seepage layer (2) away from the asphalt self-adhesive waterproof layer (3); the anti-seepage layer (2) is used to prevent oil in the asphalt self-adhesive waterproof layer (3) from migrating to the polymer sheet waterproof layer (1).

2. The polymer bitumen composite waterproof membrane according to claim 1, characterized in that, The impermeable layer (2) is a multi-layer composite structure.

3. The polymer bitumen composite waterproof membrane according to claim 2, characterized in that, The impermeable layer (2) comprises a composite structure layer formed by combining an HDPE layer and an EVOH layer; or, The impermeable layer (2) comprises a composite structure layer formed by combining an EVA layer and a PET layer.

4. The polymer bitumen composite waterproof membrane according to claim 2, characterized in that, The impermeable layer (2) includes a composite structure layer formed by an HDPE layer, a transition layer, an EVOH layer, and an HDPE layer.

5. The polymer bitumen composite waterproof membrane according to claim 1, characterized in that, Meet one or more of the following requirements: 1) The impermeable layer (2) includes a surface that connects the asphalt self-adhesive waterproof layer (3) to the impermeable layer (2) and a connecting portion (30) protruding toward the impermeable layer (2); 2) The impermeable layer (2) includes a connecting portion (30) protruding from the impermeable layer (2) toward the asphalt self-adhesive waterproof layer (3); 3) The impermeable layer (2) includes a surface from which the polymer sheet waterproof layer (1) connects to the impermeable layer (2), and a connecting portion (30) protruding toward the impermeable layer (2); 4) The impermeable layer (2) includes a connecting portion (30) protruding from the impermeable layer (2) toward the polymer sheet waterproof layer (1); 5) The area between adjacent connecting parts (30) is sealed and bonded using an oil-resistant adhesive material; 6) The impermeable layer (2) includes a surface from which the asphalt self-adhesive waterproof layer (3) connects to the impermeable layer (2), and a drainage channel (31) recessed toward the asphalt self-adhesive waterproof layer (3); 7) The impermeable layer (2) includes a surface that connects the impermeable layer (2) to the asphalt self-adhesive waterproof layer (3) and a drainage channel (31) that is recessed toward the impermeable layer (2).

6. The polymer bitumen composite waterproof membrane according to claim 1, characterized in that, The impermeable layer (2) includes a mesh-like polyester layer (24) and an oil-resistant adhesive layer (25) covering the polyester layer (24).

7. The polymer bitumen composite waterproof membrane according to claim 1, characterized in that, One or more of the following conditions must be met: The polymer bitumen composite waterproof membrane also includes a covering layer (5), which is disposed on the side surface of the polymer sheet waterproof layer (1) away from the seepage-proof layer (2); The polymer sheet waterproof layer (1) covers the seepage-proof layer (2) and extends out of the seepage-proof layer (2) in the first direction to form an overlap (6).

8. The polymer bitumen composite waterproof membrane according to claim 7, characterized in that, The covering layer (5) is made of either polyester fiber cloth or polyester geotextile, or a composite layer formed by the two materials.

9. The polymer bitumen composite waterproof membrane according to claim 7, characterized in that, The covering layer (5) includes a hot melt adhesive layer (51) and an adhesive particle layer (52) covering the hot melt adhesive layer (51).

10. The polymer bitumen composite waterproof membrane according to any one of claims 1-9, characterized in that, The asphalt self-adhesive waterproof layer (3) has an isolation layer (4) on the side away from the seepage-proof layer (2).

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