Self-adhesion modified asphalt waterproof coiled material with enhanced overlap edge

Abstract

According to the self-adhesion modified asphalt waterproof coiled material with the enhanced overlapping edge, the overlapping edge position barrier film is arranged between the adhesive and the asphalt layer, so that component migration is prevented, and the overlapping edge of the waterproof coiled material can be effectively adhered; in order to achieve the purpose, the self-adhesion modified asphalt waterproof coiled material with the enhanced overlapping edge comprises a barrier film, a self-adhesion modified asphalt layer and an isolating film which are sequentially arranged from top to bottom, the barrier film, the self-adhesion modified asphalt layer and the isolating film extend out along one side of the length direction of the waterproof coiled material to serve as the overlapping edge, and the other side of the self-adhesion modified asphalt layer extends out along the other side of the length direction of the waterproof coiled material to serve as the overlapping edge. The extending length of the barrier film is smaller than that of the self-adhesion modified asphalt layer, an adhesive is arranged on the upper portion of the barrier film at the position of the overlap edge, the upper portion of the adhesive is covered with an isolation edge film, and the isolation edge film covers the area, not covered with the barrier film at the position of the overlap edge, of the self-adhesion modified asphalt layer at the position of the overlap edge.

Description

Technical Field

[0001] The utility model relates to the field of waterproofing coiled materials, in particular to an overlap edge reinforced self-adhesive modified asphalt waterproofing coiled material. Background Art

[0002] Self-adhesive modified asphalt waterproofing membrane has achieved rapid development both at home and abroad due to its safe, fast construction and environmental friendliness. Our company's sales of self-adhesive modified asphalt waterproofing membranes are also on the rise. It also plays an important role in the production capacity layout, but there are also some problems in the application process of self-adhesive membranes:

[0003] (1) Self-adhesive rolls are prone to wrinkles during storage, and the wrinkled areas cannot be fully adhered during construction, forming water channels, and the lapped edges are not water-tight;

[0004] (2) In low temperature environments, external auxiliary heating equipment is required for overlapping edge bonding, which affects construction efficiency;

[0005] (3) In the existing technology, adhesive products are applied to the overlapped edges. After being stored for a period of time, migration between the asphalt and adhesive components will occur, causing the cohesive strength of the adhesive to decrease, and the peeling and bonding performances to be unqualified.

[0006] Therefore, solving the above problems is of great significance to promoting the current progress of self-adhesive asphalt membrane production technology and improving quality. It is a technical problem that needs to be solved urgently to provide a self-adhesive modified asphalt waterproof membrane with overlap edge reinforcement in the field of waterproof membrane. Summary of the invention

[0007] The utility model aims to provide an overlap edge enhanced self-adhesive modified asphalt waterproofing membrane, wherein an overlap edge position barrier film is provided between the adhesive and the asphalt layer to prevent component migration and ensure that the overlap edge of the waterproofing membrane can be effectively bonded.

[0008] To achieve the above-mentioned purpose, the solution of the utility model is to provide an overlapping edge reinforced self-adhesive modified asphalt waterproof membrane, comprising: a barrier membrane, a self-adhesive modified asphalt layer, and an isolation membrane arranged in sequence from top to bottom, wherein the barrier membrane, the self-adhesive modified asphalt layer and the isolation membrane all extend along one side of the length direction of the waterproof membrane as an overlapping edge, the extension length of the barrier membrane is less than the extension length of the self-adhesive modified asphalt layer, an adhesive is provided on the upper part of the barrier membrane at the overlapping edge position, the upper part of the adhesive is covered by the isolation edge membrane, and the isolation edge membrane covers the area of ​​the self-adhesive modified asphalt layer at the overlapping edge position that is not covered by the barrier membrane at the overlapping edge position.

[0009] Furthermore, the total width of the overlapping edge is a, the width of the barrier film at the overlapping edge is b, the width of the portion of the self-adhesive modified asphalt layer at the overlapping edge that is not covered by the barrier film at the overlapping edge is c, and a=b+c.

[0010] Furthermore, the adhesive includes but is not limited to one or more mixtures of hot melt adhesive, epoxy resin adhesive, PVB resin, and SIS adhesive.

[0011] Furthermore, the barrier film includes but is not limited to a PE film, a PET film or a composite film of PE and PET.

[0012] Furthermore, a reinforcing layer is provided in the self-adhesive modified asphalt layer, and the reinforcing layer divides the self-adhesive modified asphalt layer into two parts, namely, the second self-adhesive modified asphalt layer and the first self-adhesive modified asphalt layer.

[0013] Furthermore, the reinforcement layer includes but is not limited to a tire base layer or a polymer film base layer.

[0014] Further, a ranges from 80 to 100 mm.

[0015] Further, the range of b is 10-50 mm.

[0016] Further, the range of c is 30-70 mm.

[0017] Furthermore, the adhesive has a width of 5-50 mm and a thickness of 0.3-0.5 mm; preferably, the adhesive has a width of 10-20 mm.

[0018] Advantages of this utility model:

[0019] 1. In low temperature environment, the overlapping edges can be effectively bonded immediately, significantly improving the overlapping strength.

[0020] 2. It can realize instant waterproofing of the building, increase the anti-water seepage ability of the overlapping edge, make the overlapping edge airtight and waterproof, and realize double enhancement of the overlapping edge sealing.

[0021] 3. There will be no component migration between the adhesive and the second self-adhesive modified asphalt layer, which ensures the bonding strength and sealing effect of the adhesive. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a cross-sectional schematic diagram of the overlap edge position of an overlap edge reinforced self-adhesive modified asphalt waterproofing membrane provided by the utility model;

[0023] Figure 2 The utility model provides a top view of an overlap edge reinforced self-adhesive modified asphalt waterproofing membrane.

[0024] As shown in the figure, 1-isolation edge film, 2-adhesive, 3-barrier film, 4-second self-adhesive modified asphalt layer, 5-reinforcement layer, 6-first self-adhesive modified asphalt layer, 7-isolation film DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0026] like Figure 2 As shown, a self-adhesive modified asphalt waterproof membrane with lap edge reinforcement, the left side is the main structure of the waterproof membrane, and the right side is the lap edge extending from one side of the main structure along the length direction of the waterproof membrane.

[0027] Example 1

[0028] like Figure 1 As shown, the overlapping edge structure of the waterproofing membrane is 7 layers, from top to bottom, the isolation edge film 1, the adhesive 2, the overlapping edge position barrier film 3, the second self-adhesive modified asphalt layer 4, the reinforcing layer 5, the first self-adhesive modified asphalt layer 6, and the isolation film 7. The total width of the overlapping edge is 80mm, the width of the second self-adhesive modified asphalt layer 4 not covered by the overlapping edge position barrier film 3 is 40mm, the overlapping edge position barrier film 3 is 40mm wide, and the overlapping edge position barrier film 3 is coated with adhesive 2, the thickness of adhesive 2 is 0.3mm, and the width of adhesive 2 is 25mm. The adhesive 2 materials described in this embodiment are all hot melt adhesives. After one year of storage, the peel strength at 0°C and 23°C, as well as the water-tight performance of the joint at room temperature were tested.

[0029] Example 2

[0030] like Figure 1 As shown, the overlapping edge structure of the waterproofing membrane is 7 layers, from top to bottom, the isolation edge film 1, the adhesive 2, the overlapping edge position barrier film 3, the second self-adhesive modified asphalt layer 4, the reinforcing layer 5, the first self-adhesive modified asphalt layer 6, and the isolation film 7. The total width of the overlapping edge is 80mm, the width of the portion of the second self-adhesive modified asphalt layer 4 not covered by the overlapping edge position barrier film 3 is 40mm, the overlapping edge position barrier film 3 is 40mm wide, and the overlapping edge position barrier film 3 is coated with adhesive 2, the thickness of adhesive 2 is 0.5mm, and the width of adhesive 2 is 25mm. The adhesive 2 materials described in this embodiment are all hot melt adhesives. After one year of storage, the peel strength at 0°C and 23°C, as well as the water-tight performance of the joint at room temperature were tested.

[0031] Example 3

[0032] like Figure 1As shown, the overlapping edge structure of the waterproofing membrane is 7 layers, from top to bottom, the isolation edge film 1, the adhesive 2, the overlapping edge position barrier film 3, the second self-adhesive modified asphalt layer 4, the reinforcing layer 5, the first self-adhesive modified asphalt layer 6, and the isolation film 7. The total width of the overlapping edge is 80mm, the width of the second self-adhesive modified asphalt layer 4 not covered by the overlapping edge position barrier film 3 is 50mm, the overlapping edge position barrier film 3 is 30mm wide, and the overlapping edge position barrier film 3 is coated with adhesive 2, the thickness of adhesive 2 is 0.3mm, and the width of adhesive 2 is 20mm. The adhesive 2 materials described in this embodiment are all hot melt adhesives. After one year of storage, the peel strength at 0°C and 23°C, as well as the water-tight performance of the joint at room temperature were tested.

[0033] Example 4

[0034] like Figure 1 As shown, the overlapping edge structure of the waterproofing membrane is 7 layers, from top to bottom, the isolation edge film 1, the adhesive 2, the overlapping edge position barrier film 3, the second self-adhesive modified asphalt layer 4, the reinforcing layer 5, the first self-adhesive modified asphalt layer 6, and the isolation film 7. The total width of the overlapping edge is 80mm, the width of the second self-adhesive modified asphalt layer 4 not covered by the overlapping edge position barrier film 3 is 60mm, the overlapping edge position barrier film 3 is 20mm wide, and the overlapping edge position barrier film 3 is coated with adhesive 2, the thickness of adhesive 2 is 0.3mm, and the width of adhesive 2 is 10mm. The adhesive 2 materials described in this embodiment are all hot melt adhesives. After one year of storage, the peel strength at 0°C and 23°C, as well as the water-tight performance of the joint at room temperature were tested.

[0035] Comparative Example 1

[0036] The overlapping edge structure of the waterproofing membrane is 6 layers, from top to bottom, the isolation edge membrane, adhesive, the second self-adhesive modified asphalt layer, the reinforcement layer, the first self-adhesive modified asphalt layer, and the isolation membrane. The overlapping edge width is 80mm, the overlapping edge asphalt width is 80mm, and the adhesive is applied to half of the overlapping edge asphalt. The adhesive width is 25mm and the thickness is 0.3mm. The adhesive materials described in this embodiment are all hot melt adhesives. After one year of storage, the peel strength at 0°C and 23°C, as well as the watertightness of the joint at room temperature were tested.

[0037] Comparative Example 2

[0038] The overlapping edge structure of the waterproof membrane is 5 layers, from top to bottom, the isolation edge membrane, the second self-adhesive modified asphalt layer, the reinforcement layer, the first self-adhesive modified asphalt layer, and the isolation membrane. The overlapping edge width is 80mm, and the overlapping edge asphalt width is 80mm. After one year of storage, the peel strength at 0℃ and 23℃, as well as the watertightness of the joint at room temperature were tested.

[0039]

[0040] Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Claims

1. A self-adhesive modified asphalt waterproofing membrane with overlapped edges, characterized in that: include: A barrier film (3), a self-adhesive modified asphalt layer, and an isolation film (7) are arranged in sequence from top to bottom. The barrier film (3), the self-adhesive modified asphalt layer, and the isolation film (7) all extend along one side of the length direction of the waterproof roll material as an overlap edge. The extension length of the barrier film (3) is less than the extension length of the self-adhesive modified asphalt layer. An adhesive (2) is provided on the upper part of the barrier film (3) at the overlap edge. The upper part of the adhesive (2) is covered by an isolation edge film (1). The isolation edge film (1) covers the area of ​​the self-adhesive modified asphalt layer at the overlap edge that is not covered by the barrier film (3) at the overlap edge.

2. The overlap edge reinforced self-adhesive modified asphalt waterproofing membrane according to claim 1, characterized in that: The total width of the overlapped edge is a, the width of the barrier film (3) at the overlapped edge is b, the width of the portion of the self-adhesive modified asphalt layer at the overlapped edge that is not covered by the barrier film (3) at the overlapped edge is c, and a=b+c.

3. The overlap edge reinforced self-adhesive modified asphalt waterproofing membrane according to claim 1, characterized in that: The barrier film (3) comprises a PE film, a PET film or a composite film of PE and PET.

4. The overlap edge reinforced self-adhesive modified asphalt waterproofing membrane according to claim 1, characterized in that: A reinforcing layer (5) is provided in the self-adhesive modified asphalt layer, and the reinforcing layer (5) divides the self-adhesive modified asphalt layer into two upper and lower parts, namely, a second self-adhesive modified asphalt layer (4) and a first self-adhesive modified asphalt layer (6).

5. The overlap edge reinforced self-adhesive modified asphalt waterproofing membrane according to claim 4, characterized in that: The reinforcing layer (5) comprises a tire base layer or a polymer film base layer.

6. The overlap edge reinforced self-adhesive modified asphalt waterproofing membrane according to claim 2, characterized in that: The range of a is 80-100mm.

7. The overlap edge reinforced self-adhesive modified asphalt waterproofing membrane according to claim 2, characterized in that: The range of b is 10-50mm.

8. The overlap edge reinforced self-adhesive modified asphalt waterproofing membrane according to claim 2, characterized in that: The range of c is 30-70mm.

9. The overlap edge reinforced self-adhesive modified asphalt waterproofing membrane according to claim 1, characterized in that: The adhesive (2) has a width of 5-50 mm and a thickness of 0.3-0.5 mm.

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