A high-performance tireless self-adhesive waterproof membrane

Abstract

The utility model relates to a high-performance tireless self-adhesive waterproofing coiled material, comprising a polymer reinforcement film layer, a self-adhesive layer and an isolation film layer stacked in sequence from top to bottom, the high-performance tireless self-adhesive waterproofing coiled material further comprises a polymer mesh cloth, the polymer mesh cloth is arranged in the self-adhesive layer or the polymer mesh cloth is arranged between the polymer reinforcement film layer and the self-adhesive layer; the polymer mesh cloth has meshes penetrating two opposite sides of the polymer mesh cloth; the polymer mesh cloth is a nylon mesh cloth, a spandex mesh cloth, a polyester mesh cloth, a polypropylene mesh cloth or a high-density polyethylene mesh cloth. The utility model is directed to the tireless self-adhesive waterproofing coiled material, and a specific polymer mesh cloth is arranged in the self-adhesive layer or between the self-adhesive layer and the polymer reinforcement film layer, which can effectively improve the tensile and tear resistance of the tireless self-adhesive waterproofing coiled material.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproof materials, in particular to a high-performance tireless self-adhesive waterproof coiled material. Background Art

[0002] The structure of tireless self-adhesive asphalt waterproofing membrane generally includes a polymer reinforced membrane layer, a self-adhesive polymer modified asphalt layer and an isolation layer which are stacked in sequence. The polymer reinforced membrane layer usually adopts polymer films such as HDPE cross-laminated film and PET film. This type of waterproofing membrane has light weight, good conformability, strong adaptability to the base layer and node parts, can form full adhesion with the base layer, eliminate the existence of water seepage layer, has good waterproof reliability, and is widely used in waterproofing projects of buildings and structures.

[0003] However, the tensile and tear resistance of the tireless self-adhesive modified asphalt waterproofing membranes currently on the market are generally poor, and deformation and tearing problems are prone to occur during the transportation or construction application of the membranes. In addition, the tireless self-adhesive modified asphalt waterproofing membranes also generally have the problem of insufficient viscosity of the self-adhesive polymer asphalt, resulting in the inability of the asphalt self-adhesive material to effectively and completely bond with the polymer membrane at the overlapped edges of adjacent membranes, affecting the peeling performance between membranes and the bonding performance between membranes and the base layer, affecting the sealing and reliability of the waterproofing system. Summary of the invention

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a high-performance tireless self-adhesive waterproof coiled material with high tensile strength, tear resistance and strong peeling.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A high-performance tireless self-adhesive waterproofing membrane, comprising a polymer reinforcement film layer, a self-adhesive layer and an isolation film layer stacked in sequence from top to bottom, the high-performance tireless self-adhesive waterproofing membrane further comprising a polymer mesh cloth, the polymer mesh cloth being arranged in the self-adhesive layer or the polymer mesh cloth being arranged between the polymer reinforcement film layer and the self-adhesive layer;

[0007] The polymer mesh cloth has meshes penetrating two opposite sides of the polymer mesh cloth;

[0008] The polymer mesh cloth is nylon mesh cloth, spandex mesh cloth, polyester mesh cloth, polypropylene mesh cloth or high-density polyethylene mesh cloth.

[0009] According to some implementation aspects of the utility model, the meshes of the polymer mesh cloth are distributed in a honeycomb shape.

[0010] According to some implementation aspects of the present invention, the shape of the mesh is rhombus, circle, ellipse or polygon, and the number of sides in the polygon is greater than 5 and is an even number.

[0011] In some specific embodiments, when the mesh is in a rhombus shape, all side extension lines of the rhombus intersect with the length direction of the waterproof membrane.

[0012] Furthermore, when the mesh is in a rhombus shape, the angle between the extended lines of the edges of the rhombus and the length direction of the waterproof coiled material is 10° to 80°. Furthermore, the angle is 30° to 60°.

[0013] Preferably, the two diagonal lines of the rhombus are respectively parallel or perpendicular to the length direction of the waterproof membrane.

[0014] In some specific embodiments, when the mesh of the polymer mesh cloth is elliptical, the major axis and the minor axis of the ellipse are respectively parallel or perpendicular to the length direction of the waterproof coiled material.

[0015] In some specific embodiments, when the mesh of the polymer mesh cloth is in the shape of a polygon, the number of sides of the polygon is greater than 5 and is an even number.

[0016] In some specific embodiments, when the mesh is in a hexagonal shape, at least one diagonal line of the hexagon is parallel or perpendicular to the length direction of the waterproof membrane.

[0017] In some specific embodiments, when the shape of the mesh is a rhombus, the angle between two adjacent sides is 60° to 120°; when the shape of the mesh is an ellipse, the ratio of its major axis to its minor axis is 1.0 to 2.0; when the shape of the mesh is a polygon, the angle between two adjacent sides is 90° to 150°.

[0018] In some specific embodiments, the polymer mesh fabric has a gram weight of 30-250 g / m 2 .

[0019] In some specific embodiments, the polymer reinforced film layer is a polyethylene strong cross-laminated film, a PET film, a PET aluminized film, a PET alloy film, a PET alloy aluminized film or an aluminum-plastic composite film. Further, the polymer reinforced film layer is a HDPE strong cross-laminated film.

[0020] In some specific embodiments, the self-adhesive layer is a self-adhesive polymer modified asphalt layer, a butyl layer or a hot melt adhesive layer.

[0021] In some specific embodiments, the isolation film layer is a PE isolation film, a PP isolation film, a PET isolation film, an alloy isolation film or an aluminized isolation film.

[0022] In some specific embodiments, the thickness of the polymer reinforced film layer is 0.05-0.20 mm; the thickness of the self-adhesive layer is 1.2-2.1 mm; and the thickness of the high-performance tireless self-adhesive waterproof membrane is 1.4-2.5 mm.

[0023] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0024] The utility model aims at the tireless self-adhesive waterproof coiled material, arranges a specific polymer mesh cloth in the self-adhesive layer or between the self-adhesive layer and the polymer reinforcing film layer, and can effectively improve the tensile and tear resistance performance of the tireless self-adhesive waterproof coiled material.

[0025] The utility model can further improve the tensile and tear resistance properties of the waterproof coiled material by further optimizing parameters such as the shape and grammage of the polymer mesh cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of the high-performance tireless self-adhesive waterproof membrane of Example 1;

[0027] Figure 2 It is a front view of the polymer mesh fabric in the high-performance tireless self-adhesive waterproof membrane of Example 1;

[0028] Figure 3 for Figure 2 The enlarged schematic diagram at A in the middle;

[0029] Figure 4 It is a front view of the polymer mesh fabric in the high-performance tireless self-adhesive waterproof membrane of Example 2;

[0030] Figure 5 A front view of the glass fiber mesh cloth of the waterproof roll of Comparative Example 1;

[0031] In the figure: 1. polymer reinforced film layer; 2. self-adhesive layer; 3. polymer mesh cloth; 4. isolation film layer; 5. mesh; 6. glass fiber mesh cloth. DETAILED DESCRIPTION

[0032] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0033] Example 1

[0034] See also Figures 1 to 3The high-performance tireless self-adhesive waterproof membrane shown includes a polymer reinforced film layer 1, a self-adhesive layer 2 and an isolation film layer 4 which are stacked in sequence from top to bottom, wherein the polymer reinforced film layer 1 is made of 0.06 mm PET aluminum-coated film, and the isolation film layer 4 is made of PET isolation film.

[0035] The high-performance tireless self-adhesive waterproof coiled material also includes a polymer mesh cloth 3 arranged in the self-adhesive layer 2, and the polymer mesh cloth 3 has meshes 5 penetrating two opposite sides of the polymer mesh cloth, and the meshes 5 are rhombus-shaped. Specifically, a polyester rhombus mesh cloth is used, and the extension lines of the two diagonals of the rhombus are basically parallel or perpendicular to the extension lines of the length direction of the polymer mesh cloth 3 and the extension lines of the length direction of the waterproof coiled material. The angle α between the extension lines of each side of the rhombus and the extension line of the length direction of the waterproof coiled material is approximately 45°, and the angle β between the adjacent sides of the rhombus is 90°. The gram weight is 120 g / m 2 .

[0036] The self-adhesive layer 2 in this example is a self-adhesive polymer modified asphalt layer. The rubber material for preparing the self-adhesive polymer modified asphalt layer can be obtained commercially, and the following formula can also be used: 44 parts of 70# petroleum asphalt, 10 parts of softening oil, 2 parts of tackifying resin, 6 parts of polymer modifier, 2.0 parts of high-strength and high-viscosity modifier, 10 parts of rubber powder and 26 parts of filler, wherein the softening oil is a compound of rubber oil and 68# ordinary paraffin oil from Taichang Petrochemical in a mass ratio of 7:3, the polymer modifier is a compound of SBS 791 and styrene-butadiene rubber SBR-50 in a mass ratio of 1:1, the high-strength and high-viscosity modifier is ethylene-methyl acrylate copolymer, the tackifying resin is C5 petroleum resin from Henghe Materials, the rubber powder is tire rubber powder, and the filler is talcum powder.

[0037] The high-performance tireless self-adhesive waterproof membrane of this example can be prepared by the following method:

[0038] (1) Preparation of self-adhesive polymer modified asphalt rubber

[0039] Add petroleum asphalt and softened oil into the reactor, stir and dehydrate at 135-140°C for 30 minutes, then add SBS, styrene-butadiene rubber, high-strength and high-viscosity modifier and tire rubber powder, heat to 185°C, shear mix for 3 hours, then add petroleum resin, shear mix for 0.5 hours, finally add filler, stir and mix for 1 hour to obtain self-adhesive polymer modified asphalt rubber.

[0040] (2) Preparation of waterproof membrane

[0041] On the modified asphalt membrane production line, the self-adhesive polymer modified asphalt rubber prepared in step (1) is discharged to a molding device at 150° C., one side of which is covered with a polymer reinforcement film and a polymer mesh cloth composite material, and the other side is covered with an isolation film. The mixture is extruded and laminated, and cooled to form a high-performance self-adhesive waterproof membrane with a thickness of 1.5 mm.

[0042] Example 2

[0043] The high performance tireless self-adhesive waterproof membrane of this example is basically the same as that of Example 1, except that: Figure 4 The polymer mesh fabric 3 is a polyester hexagonal mesh fabric, the mesh 5 of which is a hexagon, and the extension lines of the two diagonals of the hexagon are basically parallel to the extension line of the length direction of the polymer mesh fabric 3, and the gram weight is 120 g / m 2 , the angle between two adjacent sides is 120°.

[0044] Example 3

[0045] The high-performance tireless self-adhesive waterproof membrane provided in this embodiment is different from that in Embodiment 1 in that:

[0046] Polymer mesh fabric 3 is made of polyester circular mesh fabric with a gram weight of 120 g / m 2 .

[0047] Example 4

[0048] The high-performance tireless self-adhesive waterproof membrane provided in this embodiment is different from that in Embodiment 1 in that:

[0049] Polymer mesh fabric 3 is made of polyester diamond mesh fabric, the angle between the two adjacent sides is 90°, and the weight is 60g / m 2 .

[0050] Example 5

[0051] The high-performance tireless self-adhesive waterproof membrane provided in this embodiment is different from that in Embodiment 1 in that:

[0052] The polymer mesh fabric 3 is made of polyester diamond mesh fabric, the angle between the two adjacent sides is 90°, and the weight is 200 g / m 2 .

[0053] Example 6

[0054] The high-performance tireless self-adhesive waterproof membrane provided in this embodiment is different from that in Embodiment 1 in that:

[0055] The polymer mesh fabric 3 is made of polyester diamond mesh fabric, the angle between the two adjacent sides is 75°, and the weight is 120 g / m 2 .

[0056] In other embodiments, the self-adhesive layer 2 may also be a butyl adhesive layer or a hot melt adhesive layer.

[0057] Comparative Example 1

[0058] The tireless self-adhesive waterproof membrane of this comparative example is basically the same as that of Example 1, except that: Figure 5A glass fiber mesh cloth 6 is used instead of the polyester diamond mesh cloth, wherein the mesh shape of the glass fiber mesh cloth 6 is a square, and the extension lines of the two opposite sides of the square are substantially parallel or perpendicular to the extension line of the length direction of the glass fiber mesh cloth 6 .

[0059] Comparative Example 2

[0060] The tireless self-adhesive waterproof membrane of this comparative example is basically the same as that of Example 1, except that no polymer mesh cloth is used.

[0061] The tireless self-adhesive waterproof membranes of Examples 1 to 6 and Comparative Examples 1 to 2 were subjected to performance tests according to GBT 35467-2017 “Wet-laid waterproof membranes”, and the results are shown in Table 1.

[0062] Table 1 Performance test results of waterproof membranes of Examples 1 to 6 and Comparative Examples 1 to 2

[0063]

[0064]

[0065] It can be seen from Examples 1 to 6 and Comparative Examples 1 to 2 that the introduction of a specific polymer mesh cloth into a tireless self-adhesive waterproof membrane can effectively improve the tensile and tear resistance of the tireless self-adhesive waterproof membrane, while also improving the bonding performance between the asphalt membrane and various base layers such as concrete and metal, as well as the peeling performance of the overlapping edges of adjacent membranes.

[0066] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly. They cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A high-performance tireless self-adhesive waterproof membrane, comprising a polymer reinforcement film layer, a self-adhesive layer and an isolation film layer stacked in sequence from top to bottom, characterized in that: The high-performance tireless self-adhesive waterproof coiled material further comprises a polymer mesh cloth, which is arranged in the self-adhesive layer or between the polymer reinforcement film layer and the self-adhesive layer; The polymer mesh cloth has meshes penetrating two opposite sides of the polymer mesh cloth; The polymer mesh cloth is nylon mesh cloth, spandex mesh cloth, polyester mesh cloth, polypropylene mesh cloth or high-density polyethylene mesh cloth.

2. The high-performance tireless self-adhesive waterproof membrane according to claim 1 is characterized in that: The mesh has a shape of a rhombus, a circle, an ellipse or a polygon, and the number of sides in the polygon is 5 or more and is an even number.

3. The high-performance tireless self-adhesive waterproof membrane according to claim 2 is characterized in that: When the shape of the mesh is a rhombus, all side extension lines of the rhombus intersect with the length direction of the waterproof membrane.

4. The high-performance tireless self-adhesive waterproof membrane according to claim 3 is characterized in that: The angle between the extended lines of the edges of the rhombus and the length direction of the waterproof membrane is 10° to 80°; and / or, The two diagonal lines of the rhombus are respectively parallel or perpendicular to the length direction of the waterproof membrane.

5. The high-performance tireless self-adhesive waterproof membrane according to claim 2 is characterized in that: When the shape of the mesh is an ellipse, the major axis and the minor axis of the ellipse are respectively parallel or perpendicular to the length direction of the waterproof coiled material.

6. The high-performance tireless self-adhesive waterproof membrane according to claim 2, characterized in that: When the mesh is in a hexagonal shape, at least one diagonal line of the hexagon is parallel or perpendicular to the length direction of the waterproof membrane.

7. The high performance tireless self-adhesive waterproof membrane according to any one of claims 2 to 6, characterized in that: When the mesh is in the shape of a rhombus, the angle between two adjacent sides is 60° to 120°; when the mesh is in the shape of an ellipse, the ratio of its major axis to its minor axis is 1.0 to 2.0; when the mesh is in the shape of a polygon, the angle between two adjacent sides is 90° to 150°.

8. The high-performance tireless self-adhesive waterproof membrane according to claim 1, characterized in that: The polymer mesh fabric has a gram weight of 30-250 g / m 2 .

9. The high-performance tireless self-adhesive waterproof membrane according to claim 1, characterized in that: The polymer reinforced film layer is made of polyethylene strong cross-laminated film, PET film, PET aluminized film, PET alloy film, PET alloy aluminized film or aluminum-plastic composite film; and / or, The self-adhesive layer is a self-adhesive polymer modified asphalt layer, a butyl layer or a hot melt adhesive layer; and / or, The isolation film layer is a PE isolation film, a PP isolation film, a PET isolation film, an alloy isolation film or an aluminized isolation film.

10. The high-performance tireless self-adhesive waterproof membrane according to claim 1, characterized in that: The thickness of the polymer reinforced film layer is 0.05-0.20 mm; and / or the thickness of the self-adhesive layer is 1.2-2.1 mm; and / or the thickness of the high-performance tireless self-adhesive waterproof membrane is 1.4-2.5 mm.

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