Three-ply base double-channel prefabricated waterproofing roll with hook-and-loop fastener

Abstract

The present application relates to waterproofing membrane technical field, propose a kind of three base double-channel prefabricated bite lap waterproofing membrane with touch fastener, from bottom to top, in turn include anti-adhesive layer, first permeation reaction adhesive layer, first polymer film base layer, second permeation reaction adhesive layer, second polymer film base layer, third permeation reaction adhesive layer, third polymer film base layer, fourth permeation reaction adhesive layer, rough surface silk layer and hook face layer;The adhesive of first permeation reaction adhesive layer, second permeation reaction adhesive layer, third permeation reaction adhesive layer and fourth permeation reaction adhesive layer respectively independently includes following weight parts component raw materials: asphalt, softener, SBS, SIS, tackifier, rubber powder, filler, filler is composed of heavy calcium carbonate, magnesium stearate modified active calcium carbonate and hollow glass microsphere.By the above technical solution, the problem of poor fixing, low peel strength and heavy quality of waterproofing membrane in related art is solved.

Description

Technical Field

[0001] This invention relates to the field of waterproof membrane technology, specifically to a three-layer prefabricated interlocking waterproof membrane with hook and loop fasteners. Background Technology

[0002] In current tunnel waterproofing construction, waterproof membranes are mostly used. These membranes typically need to be fixed first, followed by hot air welding at the overlaps. This process presents several problems. First, the waterproof membrane cannot achieve reactive bonding with the primary or secondary lining; if cracks appear in the primary or secondary lining, seepage channels can easily form between the layers. Second, hot air welding of the waterproof membrane is slow inside the tunnel, and the welding quality of the climbing welding machine within the annular space is difficult to guarantee effectively.

[0003] Precast interlocking waterproof membranes can effectively solve the above problems. Their permeable reactive adhesive layer can form a skin-like bond with concrete, blocking water penetration channels. The interlocking structure can enhance the bonding between materials, and the shear strength and impermeability of the overlap joints are greatly enhanced. Double prefabrication can increase the composite strength of the materials and improve on-site construction efficiency. However, how to solve the problems of fixing the membrane, enhancing the peel strength of the membrane, and reducing the overall weight of the material when applying it in tunnels has become a research topic for us.

[0004] If the waterproofing membrane is not properly secured, it is prone to blistering, displacement, or even detachment. Separation of the membrane from the substrate prevents the formation of a continuous and complete waterproof layer. Gaps between the poorly secured membrane and the substrate become channels for groundwater to flow, reducing the durability of the tunnel structure. If the membrane has low peel strength, it may delaminate and peel off from the substrate under stress, causing the waterproof layer to lose its integrity. In this case, water will rapidly flow along the peeling gaps, breaking through local weak points and causing large-scale leakage, leading to complete waterproofing failure. In severe cases, this may even cause tunnel structural instability. If the membrane is heavy, it not only requires more manpower or mechanical power for handling and laying, but also increases the additional dead load on the tunnel structure, putting pressure on its load-bearing capacity.

[0005] Therefore, how to enhance the fixation and peel strength of roll materials and reduce their weight is an urgent problem to be solved. Summary of the Invention

[0006] This invention proposes a three-layer prefabricated interlocking waterproof membrane with hook and loop fasteners, which solves the problems of poor fixation, low peel strength, and heavy weight of waterproof membranes in related technologies.

[0007] The technical solution of this invention is as follows: This invention proposes a three-layer double-layer prefabricated interlocking waterproof membrane with hook and loop fasteners, characterized in that, from bottom to top, it sequentially includes an anti-adhesive layer, a first penetrating reactive adhesive layer, a first polymer membrane base layer, a second penetrating reactive adhesive layer, a second polymer membrane base layer, a third penetrating reactive adhesive layer, a third polymer membrane base layer, a fourth penetrating reactive adhesive layer, a rough-surface loop layer, and a hook-and-loop layer; the adhesives of the first, second, third, and fourth penetrating reactive adhesive layers each independently include the following raw materials in parts by weight: 30-50 parts asphalt, 10-25 parts softener, 2-10 parts SBS, 2-10 parts SIS, 2-5 parts tackifier, 5-15 parts rubber powder, and 15-30 parts filler, wherein the filler is composed of heavy calcium carbonate, magnesium stearate modified active calcium carbonate, and hollow glass microspheres.

[0008] In this invention, the filler consists of heavy calcium carbonate, magnesium stearate-modified activated calcium carbonate, and hollow glass microspheres. Activated calcium carbonate increases the product's volume and has good affinity with the resin, allowing for uniform dispersion, resulting in a soft and delicate adhesive, improved dimensional stability, and enhanced adhesion of the penetration-reactive adhesive layer. Hollow glass microspheres possess advantages such as light weight, low thermal conductivity, high strength, and good chemical stability. They exhibit oleophilic and hydrophobic properties, making them easily dispersed in the adhesive, significantly reducing the weight of the penetration-reactive adhesive layer. The addition of heavy calcium carbonate not only increases cost advantages but also effectively... The bonding effect between the adhesive and concrete is guaranteed, and the cross-linking degree of the system is ensured. This is because the calcium carbonate particles are evenly distributed in the adhesive, which can form physical cross-linking points. These rigid particles can restrict the free movement and slippage of the asphalt macromolecular chains. When stress is applied, the stress is shared by the asphalt-filler system, so that the material is damaged at the interface or mixed. Calcium carbonate particles can also be embedded in the capillaries of concrete, producing a microscopic mechanical interlocking effect, achieving closer molecular contact, thereby improving the interfacial adhesion and further improving the performance of the waterproof membrane.

[0009] As a further technical solution, the adhesive materials of the first penetrating reactive adhesive layer, the second penetrating reactive adhesive layer, the third penetrating reactive adhesive layer and the fourth penetrating reactive adhesive layer each independently include the following raw materials in parts by weight: 35-40 parts asphalt, 13-16 parts softener, 7-8 parts SBS, 6-7 parts SIS, 2-5 parts tackifier, 6-8 parts rubber powder and 20-25 parts filler.

[0010] As a further technical solution, a first isolation membrane of 6-10cm is provided on one side of the looped yarn layer to form an upper overlap edge, preferably 6cm; the hook layer and the looped yarn layer have the same width, both 6cm; an overlap interface is provided at the second and third permeable reactive adhesive layers, one end of the second polymer membrane base layer extends into the overlap interface, and a second isolation membrane of 6-10cm is provided on the side of the anti-adhesive layer corresponding to the looped yarn layer to form a lower overlap edge, preferably 6cm; the inner wall of the overlap interface is provided with a third and a fourth isolation membrane.

[0011] As a further technical solution, the hook layer is made of synthetic fiber materials such as nylon and polyester, and the hook layer surface is uniformly distributed with hooks of 0.2~1.5mm in height; the looped yarn layer is made of synthetic fiber materials such as nylon and polyester, and its surface is uniformly looped without obvious unevenness, with a height of 0.1~2mm.

[0012] As a further technical solution, the width of the first isolation membrane, the second isolation membrane, the third isolation membrane and the fourth isolation membrane are each independently 100-200mm, preferably 100mm, and the thickness is 0.036~0.038mm, preferably 0.036mm.

[0013] As a further technical solution, the thickness of the first polymer film base layer and the third polymer film base layer are each independently 0.05~0.15mm, preferably 0.1mm; the thickness of the second polymer film base layer is 0.01~0.05mm, preferably 0.02mm.

[0014] As a further technical solution, the length of the interlocking interface is 60~100mm, preferably 60mm; the length of the insertion is 2~20mm, preferably 10mm.

[0015] In this invention, the extension section of the second polymer membrane base layer is always within the overlapping interface.

[0016] As a further technical solution, the third isolation membrane is located on the upper surface of the inner wall, and the fourth isolation membrane is located on the lower surface of the inner wall.

[0017] As a further technical solution, the first separator, the second separator, the third separator, and the fourth separator are each independently any flexible organic film, preferably one of PET film, PET aluminized separator film, and PE film, and more preferably PE film.

[0018] As a further technical solution, the raw materials of the first polymeric membrane base layer, the second polymeric membrane base layer, and the third polymeric membrane base layer are each independently any kind of polymeric membrane in the art. The raw materials of the first polymeric membrane base layer and the third polymeric membrane base layer are preferably one of PP film, PE film, TPU film, TPO film, EPDM film, and PET film, more preferably PET film and PE film, and even more preferably PET film; the raw material of the second polymeric membrane base layer is preferably one of PP film and PE film, more preferably PE film with a low melting point.

[0019] As a further technical solution, the raw material of the anti-sticking layer includes one of PE film, PET film, mineral sand, natural sand, and penetrating crystallizing sand, preferably PE film and mineral sand, and more preferably PE film.

[0020] As a further technical solution, the asphalt is 70# asphalt, which is heavy-duty road petroleum asphalt.

[0021] As a further technical solution, the SBS is a styrene-butadiene-styrene block copolymer, preferably linear SBS.

[0022] As a further technical solution, the SIS is a styrene-isoprene-styrene block copolymer.

[0023] As a further technical solution, the rubber powder is fine tire rubber powder, and the particle size of the rubber powder is 60-80 mesh, preferably 80 mesh.

[0024] As a further technical solution, the particle size of the heavy calcium carbonate is 400-800 mesh, preferably 400 mesh.

[0025] As a further technical solution, the hollow glass microspheres are made of soda lime borosilicate, with an effective density of 0.25~0.60 g / cc, an average particle size of 30~60 μm, a compressive strength of 10~60 MPa, and a thermal conductivity of 0.03~0.06 W / mK.

[0026] As a further technical solution, the filler composition of the first and second penetrating reactive adhesive layers is the same, and the filler composition of the third and fourth penetrating reactive adhesive layers is the same.

[0027] As a further technical solution, the fillers of the first and second permeation reactive adhesive layers are composed of heavy calcium carbonate, magnesium stearate modified active calcium carbonate, and hollow glass microspheres in a mass ratio of 1:(1.1~1.2):0.1.

[0028] As a further technical solution, the fillers of the third and fourth permeation reactive adhesive layers are composed of heavy calcium carbonate, magnesium stearate modified active calcium carbonate, and hollow glass microspheres in a mass ratio of 1:(0.9~1):0.25.

[0029] In this invention, a significant proportion of magnesium stearate-modified activated calcium carbonate is added to the fillers of the first and second penetrating reactive adhesive layers. The surface of the magnesium stearate-modified activated calcium carbonate is covered with long-chain lipophilic groups, resulting in better compatibility with raw materials such as asphalt in the adhesive and more uniform dispersion within the adhesive, thus improving the bonding reliability and water resistance of the waterproof membrane. A high proportion of hollow glass microspheres is added to the fillers of the third and fourth penetrating reactive adhesive layers. The spherical shape of the hollow microspheres reduces stress concentration within the adhesive, lowers its rigidity, and increases its flexibility, making it more adaptable to bending, stretching, and other deformations during construction. Through differentiated additions between layers, a synergistic effect is achieved, further enhancing the peel strength and impermeability of the waterproof membrane.

[0030] As a further technical solution, the preparation method of the filler includes the following steps: mixing magnesium stearate modified active calcium carbonate and hollow glass microspheres to obtain a composite filler, adding the composite filler to the heavy calcium carbonate, and mixing to obtain the filler.

[0031] As a further technical solution, the softener includes one or more of the following: linear oil, naphthenic oil, aromatic oil, and paraffin oil, preferably linear oil.

[0032] As a further technical solution, the tackifier can be any one or more tackifiers in the art, preferably one or more of hydrogenated petroleum resin, hydrogenated terpene resin, and rosin resin, and more preferably hydrogenated petroleum resin.

[0033] As a further technical solution, the preparation method of the adhesive compound of the first penetrating reactive adhesive layer, the second penetrating reactive adhesive layer, the third penetrating reactive adhesive layer and the fourth penetrating reactive adhesive layer includes the following steps: mixing the asphalt with the softener, heating to 150~170℃, adding the SBS and the SIS and grinding, raising the temperature to 185~200℃ and adding the rubber powder and the tackifier, adding the filler after complete melting, cooling to 150~175℃ and mixing to obtain the adhesive compound.

[0034] As a further technical solution, the adhesive material of the fourth penetrating reactive adhesive layer also includes a chemical root inhibitor.

[0035] As a further technical solution, the amount of the chemical root inhibitor added is 0.05% to 0.1% of the mass of the fourth penetrating reaction adhesive layer, for example, it can be 0.05%, 0.06%, 0.07%, 0.08%, 0.09%, or 0.1%, preferably 0.05%.

[0036] As a further technical solution, the chemical root inhibitor is B2 produced by Lanxess in Germany.

[0037] The working principle and beneficial effects of this invention are as follows:

[0038] In this invention, by setting up a rough-surface loop layer and a hook-surface layer, the application scenarios of the interlocking roll material are greatly expanded, solving the problem of rapid fixation after the initial lining is laid in tunnel construction. At the same time, by adding a filler composed of heavy calcium carbonate, magnesium stearate modified active calcium carbonate, and hollow glass microspheres, the three work synergistically to not only reduce the weight of the penetrating reaction adhesive layer and increase the peel resistance after laying, but also to improve the adhesion performance of the waterproof roll material, resulting in better joint peel resistance and water impermeability of the waterproof roll material. Attached Figure Description

[0039] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0040] Figure 1 This is a schematic diagram of the waterproof membrane structure of Embodiment 2 of the present invention. Detailed Implementation

[0041] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0042] In the following examples and comparative examples:

[0043] Asphalt: 70# asphalt, purchased from Hebei Xinhai Chemical Group Co., Ltd.;

[0044] SBS: Model SBS792E, purchased from Baling Petrochemical Branch of China Petrochemical Corporation Asset Management Co., Ltd.

[0045] SIS: Model number SIS8291, purchased from Ningbo Jinhaichenguang Chemical Co., Ltd.;

[0046] Hydrogenated petroleum resin: C5 hydrogenated petroleum resin, purchased from Lanzhou Petrochemical Branch of China National Petroleum Corporation;

[0047] Softener: Line reduction oil, purchased from Shandong Dalin Chemical Co., Ltd.

[0048] Rubber powder: Fine tire rubber powder, with a particle size of 80 mesh, purchased from Cangxian Baiyi Fine Rubber Powder Co., Ltd.

[0049] Heavy calcium carbonate: particle size 400 mesh, purchased from Jiangxi Guangyuan Chemical Co., Ltd.;

[0050] Activated calcium carbonate: Magnesium stearate modified activated calcium carbonate, particle size 8000 mesh; purchased from Jiangxi Guangyuan Chemical Co., Ltd.

[0051] Hollow glass microspheres: soda lime borosilicate material, model B-60, purchased from China Steel Group Maanshan Mining Institute New Materials Technology Co., Ltd.

[0052] Hook surface layer: The surface is uniformly distributed with hooks 1mm high;

[0053] The napped layer has a uniform nap, without obvious unevenness, and a height of 1mm.

[0054] Example 1

[0055] A three-layer prefabricated interlocking waterproof membrane with hook and loop fasteners, comprising, from bottom to top, an anti-adhesive layer, a first penetrating reactive adhesive layer, a first polymer membrane base layer, a second penetrating reactive adhesive layer, a third penetrating reactive adhesive layer, a fourth penetrating reactive adhesive layer, a textured loop layer, and a hook-and-loop layer; the textured loop layer has a 6cm first release membrane on one side to connect with it to form an upper overlap edge; the hook-and-loop layer has the same width of 6cm as the textured loop layer; and a 60mm long overlap is provided at the second and third penetrating reactive adhesive layers. The interface has one end of the second polymer film base extending 10mm into the overlap. A 6cm second release film is provided on the side corresponding to the anti-adhesive layer and the looped yarn layer to connect with it and form a lower overlap edge. The inner wall of the overlap is provided with a third release film and a fourth release film. The first, second, third, and fourth release films are all PE films with a thickness of 0.036mm. The first and third polymer film bases are both PET films with a thickness of 0.1mm. The second polymer film base is a PE film with a thickness of 0.02mm, and the anti-adhesive layer is a PE film with a thickness of 0.038mm.

[0056] The preparation method of the adhesive compound for the first, second, third, and fourth permeation reaction adhesive layers includes the following steps: 35 parts asphalt and 13 parts paraffin oil are mixed, heated to 150°C, 7 parts SBS and 6 parts SIS are added and ground, the temperature is raised to 185°C, 6 parts rubber powder and 2 parts hydrogenated petroleum resin are added, and after complete melting, 20 parts filler are added, the temperature is lowered to 150°C and mixed to obtain the adhesive compound;

[0057] In the adhesive compounds of the first, second, third, and fourth permeation reaction adhesive layers, the fillers are all composed of heavy calcium carbonate, activated calcium carbonate, and hollow glass microspheres in a mass ratio of 1:0.8:0.25. In the adhesive compound of the fourth permeation reaction adhesive layer, after cooling to 150°C and mixing evenly, 0.05% of the mass of chemical root inhibitor B2 needs to be added to the adhesive compound, and the mixture is then mixed to obtain the adhesive compound.

[0058] Example 2

[0059] A three-layer prefabricated interlocking waterproof membrane with hook and loop fasteners, comprising, from bottom to top, an anti-adhesive layer, a first penetrating reactive adhesive layer, a first polymer membrane base layer, a second penetrating reactive adhesive layer, a third penetrating reactive adhesive layer, a fourth penetrating reactive adhesive layer, a textured loop layer, and a hook-and-loop layer; the textured loop layer has a 6cm first release membrane on one side to connect with it to form an upper overlap edge; the hook-and-loop layer has the same width of 6cm as the textured loop layer; and a 60mm long overlap is provided at the second and third penetrating reactive adhesive layers. The interface has one end of the second polymer film base extending 10mm into the overlap. A 6cm second release film is provided on the side corresponding to the anti-adhesive layer and the looped yarn layer to connect with it and form a lower overlap edge. The inner wall of the overlap is provided with a third release film and a fourth release film. The first, second, third, and fourth release films are all PE films with a thickness of 0.036mm. The first and third polymer film bases are both PET films with a thickness of 0.1mm. The second polymer film base is a PE film with a thickness of 0.02mm, and the anti-adhesive layer is a PE film with a thickness of 0.038mm.

[0060] The preparation method of the adhesive compound for the first, second, third, and fourth permeation reactive adhesive layers includes the following steps: mixing 38 parts of asphalt with 15 parts of paraffin oil, heating to 160°C, adding 7.5 parts of SBS and 6.5 parts of SIS and grinding, raising the temperature to 195°C and adding 7 parts of rubber powder and 3.5 parts of hydrogenated petroleum resin, melting completely, adding 22 parts of filler, cooling to 160°C and mixing to obtain the adhesive compound;

[0061] In the adhesives of the first, second, third, and fourth permeation reaction adhesive layers, the fillers are all composed of heavy calcium carbonate, activated calcium carbonate, and hollow glass microspheres in a mass ratio of 1:0.8:0.25. In the adhesive of the fourth permeation reaction adhesive layer, after cooling to 160°C and mixing evenly, 0.05% of the mass of chemical root inhibitor B2 needs to be added to the adhesive. After mixing, the adhesive is obtained.

[0062] Figure 1This is a schematic diagram of the structure of the waterproof membrane in Embodiment 2 of the present invention, wherein 1-anti-adhesive layer, 2-first penetrating reactive adhesive layer, 3-first polymer membrane base layer, 4-second penetrating reactive adhesive layer, 5-second polymer membrane base layer, 6-third penetrating reactive adhesive layer, 7-third polymer membrane base layer, 8-fourth penetrating reactive adhesive layer, 9-rough surface loop layer, 10-hook surface layer, 11-first release film, 12-second release film, 13-third release film, 14-fourth release film;

[0063] The schematic diagram of the waterproof membrane structure obtained in this embodiment is shown below. Figure 1 As shown.

[0064] Example 3

[0065] A three-layer prefabricated interlocking waterproof membrane with hook and loop fasteners, comprising, from bottom to top, an anti-adhesive layer, a first penetrating reactive adhesive layer, a first polymer membrane base layer, a second penetrating reactive adhesive layer, a third penetrating reactive adhesive layer, a fourth penetrating reactive adhesive layer, a textured loop layer, and a hook-and-loop layer; the textured loop layer has a 6cm first release membrane on one side to connect with it to form an upper overlap edge; the hook-and-loop layer has the same width of 6cm as the textured loop layer; and a 60mm long overlap is provided at the second and third penetrating reactive adhesive layers. The interface has one end of the second polymer film base extending 10mm into the overlap. A 6cm second release film is provided on the side corresponding to the anti-adhesive layer and the looped yarn layer to connect with it and form a lower overlap edge. The inner wall of the overlap is provided with a third release film and a fourth release film. The first, second, third, and fourth release films are all PE films with a thickness of 0.036mm. The first and third polymer film bases are both PET films with a thickness of 0.1mm. The second polymer film base is a PE film with a thickness of 0.02mm, and the anti-adhesive layer is a PE film with a thickness of 0.038mm.

[0066] The preparation method of the adhesive compound for the first, second, third, and fourth permeation reaction adhesive layers includes the following steps: 40 parts asphalt and 16 parts paraffin oil are mixed, heated to 170°C, 8 parts SBS and 7 parts SIS are added and ground, the temperature is raised to 200°C, 8 parts rubber powder and 5 parts hydrogenated petroleum resin are added, and after complete melting, 25 parts filler are added, the temperature is lowered to 175°C and mixed to obtain the adhesive compound;

[0067] In the adhesive compounds of the first, second, third, and fourth permeation reaction adhesive layers, the fillers are all composed of heavy calcium carbonate, activated calcium carbonate, and hollow glass microspheres in a mass ratio of 1:0.8:0.25. In the adhesive compound of the fourth permeation reaction adhesive layer, after cooling to 175°C and mixing evenly, 0.05% of the mass of chemical root inhibitor B2 needs to be added to the adhesive compound, and the mixture is then mixed to obtain the adhesive compound.

[0068] Example 4

[0069] Compared with Example 2, Example 4 differs in that the fillers in the adhesives of the first and second penetrating reactive adhesive layers are both composed of heavy calcium carbonate, activated calcium carbonate and hollow glass microspheres in a mass ratio of 1:1:0.1; and the fillers in the adhesives of the third and fourth penetrating reactive adhesive layers are composed of heavy calcium carbonate, activated calcium carbonate and hollow glass microspheres in a mass ratio of 1:0.8:0.25.

[0070] Example 5

[0071] Compared with Example 2, Example 5 differs in that the fillers in the adhesives of the first and second penetrating reactive adhesive layers are both composed of heavy calcium carbonate, activated calcium carbonate and hollow glass microspheres in a mass ratio of 1:1.1:0.1; and the fillers in the adhesives of the third and fourth penetrating reactive adhesive layers are composed of heavy calcium carbonate, activated calcium carbonate and hollow glass microspheres in a mass ratio of 1:0.8:0.25.

[0072] Example 6

[0073] Compared with Example 2, Example 6 differs in that the fillers in the adhesives of the first and second penetrating reactive adhesive layers are both composed of heavy calcium carbonate, activated calcium carbonate and hollow glass microspheres in a mass ratio of 1:1.2:0.1; and the fillers in the adhesives of the third and fourth penetrating reactive adhesive layers are composed of heavy calcium carbonate, activated calcium carbonate and hollow glass microspheres in a mass ratio of 1:0.8:0.25.

[0074] Example 7

[0075] Compared with Example 2, Example 7 differs in that the fillers in the adhesives of the first and second penetrating reactive adhesive layers are both composed of heavy calcium carbonate, activated calcium carbonate and hollow glass microspheres in a mass ratio of 1:1.3:0.1; and the fillers in the adhesives of the third and fourth penetrating reactive adhesive layers are composed of heavy calcium carbonate, activated calcium carbonate and hollow glass microspheres in a mass ratio of 1:0.8:0.25.

[0076] Example 8

[0077] Compared with Example 6, Example 8 differs in that the filler in the adhesive of the third and fourth permeation reactive adhesive layers consists of heavy calcium carbonate, activated calcium carbonate and hollow glass microspheres in a mass ratio of 1:0.9:0.25.

[0078] Example 9

[0079] Compared with Example 6, Example 9 differs in that the filler in the adhesive of the third and fourth permeation reactive adhesive layers is composed of heavy calcium carbonate, activated calcium carbonate and hollow glass microspheres in a mass ratio of 1:1.0:0.25.

[0080] Example 10

[0081] Compared with Example 6, Example 10 differs in that the filler in the adhesive of the third and fourth permeation reactive adhesive layers is composed of heavy calcium carbonate, activated calcium carbonate and hollow glass microspheres in a mass ratio of 1:1.1:0.25.

[0082] Example 11

[0083] Compared with Example 6, Example 11 differs in that the filler in the adhesive of the third and fourth permeation reactive adhesive layers is composed of heavy calcium carbonate, activated calcium carbonate and hollow glass microspheres in a mass ratio of 1:1.0:0.1.

[0084] Comparative Example 1

[0085] Compared with Example 2, the difference in Comparative Example 1 is that the filler in the adhesives of the first, second, third, and fourth permeable reactive adhesive layers is only heavy calcium carbonate.

[0086] Comparative Example 2

[0087] Compared with Example 2, Comparative Example 2 differs in that the fillers in the adhesives of the first, second, third, and fourth penetrating reactive adhesive layers are all composed of heavy calcium carbonate and active calcium carbonate in a mass ratio of 1:0.8.

[0088] Comparative Example 3

[0089] Compared with Example 2, Comparative Example 3 differs in that the filler in the adhesives of the first, second, third, and fourth permeation reactive adhesive layers is composed of heavy calcium carbonate and hollow glass microspheres in a mass ratio of 1:0.25.

[0090] Comparative Example 4

[0091] Compared with Example 2, Comparative Example 4 differs in that hollow glass microspheres (soda lime borosilicate) were replaced with an equal amount of hollow glass microspheres (sodium calcium borosilicate, model S60, purchased from 3M).

[0092] Comparative Example 5

[0093] Compared with Example 2, Comparative Example 5 differs in that magnesium stearate modified active calcium carbonate is replaced with an equal amount of titanate modified calcium carbonate, which was purchased from Guangzhou Haoxin Trading Co., Ltd.

[0094] Experimental Example 1

[0095] The three-layer prefabricated interlocking waterproof membranes with hook and loop fasteners prepared in Examples 1-11 and Comparative Examples 1-5 were tested in the following manner:

[0096] 1. Joint peel strength: The joint peel strength of the specimens shall be tested in accordance with the test method specified in T / CWA302-2023 "Test Methods for Engineering Requirements of Waterproofing Materials for Buildings". Five specimens shall be taken and the test result shall be the average value of the five specimens.

[0097] 2. Joint impermeability: The joint impermeability of the test specimens shall be tested in accordance with the test method specified in T / CWA302-2023 "Test Methods for Engineering Requirements of Waterproofing Materials for Buildings". The specimens shall be considered to pass if all three specimens are impermeable within the specified time.

[0098] The test results are shown in Table 1:

[0099] Table 1 Performance test results of triple-base double-layer prefabricated interlocking waterproof membranes with hook and loop fasteners prepared in Examples 1-11 and Comparative Examples 1-5

[0100]

[0101] As shown in Table 1, when the fillers of the first and second penetrating reactive adhesive layers are composed of heavy calcium carbonate, magnesium stearate modified nano-active calcium, and hollow glass microspheres in a mass ratio of 1:(1.1~1.2):0.1, and the fillers of the third and fourth penetrating reactive adhesive layers are composed of heavy calcium carbonate, magnesium stearate modified nano-active calcium, and hollow glass microspheres in a mass ratio of 1:(0.9~1):0.25, the peel strength and impermeability of the waterproof membrane joints can be improved.

[0102] Experimental Example 2

[0103] The triple-layer prefabricated interlocking waterproof membrane with hook and loop fasteners prepared in Example 2 was tested in the following manner:

[0104] 1. Density: Its density is tested using a density balance.

[0105] 2. Peel strength between looped yarn layer and hook layer: The peel strength between the looped yarn layer and hook layer of the sample shall be tested in accordance with the test method specified in GB / T23315-2009 "Hook and Loop Tape".

[0106] The test results are shown in Table 2:

[0107] Table 2 Performance test results of the triple-base double-layer prefabricated interlocking waterproof membrane with hook and loop fasteners prepared in Example 2

[0108]

[0109] As can be seen from the data in the table, the waterproof membrane obtained by the present invention has a lighter weight, and the surface of the waterproof membrane has better peel strength by setting a rough-surface loop layer and a hook-surface layer on the fourth penetrating reactive adhesive layer.

[0110] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A three-layer base double-layer prefabricated interlocking waterproof membrane with hook and loop fasteners, characterized in that, From bottom to top, the adhesive comprises, in sequence, an anti-stick layer, a first penetrating reactive adhesive layer, a first polymer membrane base layer, a second penetrating reactive adhesive layer, a second polymer membrane base layer, a third penetrating reactive adhesive layer, a third polymer membrane base layer, a fourth penetrating reactive adhesive layer, a textured loop layer, and a hook layer. The adhesives of the first, second, third, and fourth penetrating reactive adhesive layers each independently comprise the following raw materials by weight: 30-50 parts asphalt, 10-25 parts softener, 2-10 parts SBS, 2-10 parts SIS, 2-5 parts tackifier, 5-15 parts rubber powder, and 15-30 parts filler, wherein the filler is composed of heavy calcium carbonate, magnesium stearate-modified activated calcium carbonate, and hollow glass microspheres. The heavy calcium carbonate has a particle size of 400-800 mesh, and the hollow glass microspheres are made of soda lime borosilicate with an average particle size of 30-60 μm. The first and second penetrating reactive adhesive layers have the same filler composition, and the third and fourth penetrating reactive adhesive layers have the same filler composition. The fillers of the first and second permeation reactive adhesive layers are composed of heavy calcium carbonate, magnesium stearate-modified active calcium carbonate, and hollow glass microspheres in a mass ratio of 1:(1.1~1.2):0.

1. The fillers of the third and fourth permeable reactive adhesive layers are composed of heavy calcium carbonate, magnesium stearate-modified activated calcium carbonate, and hollow glass microspheres in a mass ratio of 1:(0.9~1):0.

25.

2. The three-layer double-layer prefabricated interlocking waterproof membrane with hook and loop fasteners according to claim 1, characterized in that, The looped yarn layer has a 6-10cm first release membrane on one side, which is connected to form an upper overlap edge. The hook layer has the same width as the looped yarn layer. An overlap interface is provided at the second and third permeable reactive adhesive layers. One end of the second polymer membrane base layer extends into the overlap interface. The anti-adhesive layer has a 6-10cm second release membrane on the side corresponding to the looped yarn layer, which is connected to form a lower overlap edge. The inner wall of the overlap interface is provided with a third and a fourth release membrane.

3. The three-layer prefabricated interlocking waterproof membrane with hook and loop fasteners according to claim 1, characterized in that, The preparation method of the filler includes the following steps: mixing magnesium stearate modified active calcium carbonate and hollow glass microspheres to obtain a composite filler, adding the composite filler to the heavy calcium carbonate, and mixing to obtain the filler.

4. The three-layer prefabricated interlocking waterproof membrane with hook and loop fastener as described in claim 1, characterized in that, The softener includes one or more of the following: anti-corrosive oil, naphthenic oil, aromatic oil, and paraffin oil; The tackifier includes one or more of hydrogenated petroleum resin, hydrogenated terpene resin, and rosin resin.

5. A three-layer prefabricated interlocking waterproof membrane with hook and loop fasteners according to claim 1, characterized in that, The preparation method of the adhesive compound of the first penetrating reactive adhesive layer, the second penetrating reactive adhesive layer, the third penetrating reactive adhesive layer and the fourth penetrating reactive adhesive layer includes the following steps: mixing the asphalt with the softener, heating to 150~170℃, adding the SBS and the SIS and grinding, raising the temperature to 185~200℃ and adding the rubber powder and the tackifier, adding the filler after complete melting, cooling to 150~175℃ and mixing to obtain the adhesive compound.

6. A three-layer prefabricated interlocking waterproof membrane with hook and loop fasteners according to claim 1, characterized in that, The adhesive material of the fourth penetrating reactive adhesive layer also includes a chemical root inhibitor.

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