Weldable ethylene-propylene-diene monomer polymer waterproof coiled material
By installing the upper and lower welding layers of thermoplastic polyolefin or two-component polyurethane hot melt adhesive layer on the ethylene propylene rubber waterproof roll material, and using hot air welding technology, the quality instability of the roll overlapping part in the prior art is solved. , achieving high-strength, low-cost waterproof sealing effect.
Patent Information
- Application Number
- CN202420522323.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-18
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-03-18
AI Technical Summary
The overlapping points of the existing ethylene propylene rubber waterproof coils are prone to failure. Domestic adhesives are low in cost but unstable in quality, and imported adhesives are high in price, making it difficult to achieve low-cost and high-strength overlapping.
The upper and lower welding layers are provided on the ethylene propylene ternary rubber matrix, and a thermoplastic polyolefin or two-component polyurethane hot melt adhesive layer is used to achieve high-strength overlap of the coil material through hot air welding, improving the waterproof sealing effect.
High-strength and low-cost rolling material overlap is achieved, hot air welding quality is better than adhesive bonding, peel strength is ≥5.0N/mm, improving the waterproof sealing effect.
Smart Images
Figure CN222206991U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of waterproof coiled materials, in particular to a weldable EPDM polymer waterproof coiled material. Background Art
[0002] Commonly used polymer membranes for roofing include thermoplastic polyolefin (TPO), polyvinyl chloride (PVC) and ethylene propylene diene monomer (EPDM) waterproof membranes. Among them, EPDM has the best weather resistance and better flexibility, and is more suitable for construction applications in detailed nodes. The roof is exposed to sunlight for a long time, so weather resistance and sun protection are key considerations when materials are used in this area. Due to production conditions, waterproof membranes need to be connected together to play a waterproof role;
[0003] In the existing technical solutions, the overlapping edges of EPDM rubber waterproofing membranes are mostly bonded with adhesives. If imported adhesives are used, although the quality can be guaranteed, they are expensive and not suitable for promotion. If domestic overlapping adhesives are used, although the price is relatively low, the waterproof layer at the overlapping joints is prone to failure after long-term use, and there are certain quality risks. Therefore, how to achieve high-strength overlaps between membranes at a low cost is a problem that needs to be solved urgently. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a weldable EPDM polymer waterproofing membrane, which solves the problems mentioned in the background technology.
[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:
[0006] A weldable EPDM polymer waterproofing coiled material comprises an EPDM rubber matrix, which is wound on a reel tube, a lower welding layer is provided at the side edge of the lower surface of the EPDM rubber matrix, an upper welding layer is provided at the side edge of the upper surface of the EPDM rubber matrix, the width of the upper welding layer is the same as that of the lower welding layer, and the lengths of the upper welding layer, the lower welding layer and the EPDM rubber matrix are all the same.
[0007] Furthermore, the upper welding layer is a thermoplastic polyolefin hot melt adhesive layer or a two-component polyurethane hot melt adhesive layer.
[0008] Furthermore, the lower welding layer is a thermoplastic polyolefin hot melt adhesive layer or a two-component polyurethane hot melt adhesive layer.
[0009] Furthermore, an overlap marking line is provided on the upper surface of the EPDM rubber substrate, and the overlap marking line is located on the inner side of the upper welding layer.
[0010] Furthermore, both ends of the reel tube are open structures, and handles are provided at the openings at both ends of the reel tube.
[0011] Furthermore, a first binding strap is provided at an opening at one end of the reel tube, and a second binding strap is provided at an opening at the other end.
[0012] The utility model provides a weldable EPDM polymer waterproofing coil. Compared with the prior art, it has the following beneficial effects:
[0013] 1. The setting of the upper welding layer and the lower welding layer transforms the rubber waterproof layer that cannot be hot-air welded into a new type of EPDM rubber waterproof material that can be welded;
[0014] 2. When overlapping adjacent coils, overlap the lower welding layer of one coil with the upper welding layer of the previous coil. Through hot air welding, the upper welding layer and the lower welding layer are integrated into one, realizing hot air welding. The operation is simple, and the overlapping quality of hot air welding is better than that of adhesive bonding. The peel strength is ≥5.0N / mm, which can effectively improve the waterproof sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0016] Figure 1 The schematic diagram of the structure of the overlapping state of the waterproof coiled material of the utility model is shown;
[0017] Figure 2 The utility model shows a schematic structural diagram of the waterproof coiled material in a rolled-up state. DETAILED DESCRIPTION
[0018] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the 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.
[0019] Example
[0020] In order to solve the technical problems in the background technology, the following weldable EPDM polymer waterproofing membrane is provided:
[0021] Combination Figure 1-Figure 2As shown, the utility model provides a weldable EPDM polymer waterproofing membrane, comprising an EPDM rubber substrate 1, the EPDM rubber substrate 1 is wound on a reel tube 2, a lower welding layer 11 is provided at the side edge of the lower surface of the EPDM rubber substrate 1, an upper welding layer 12 is provided at the side edge of the upper surface of the EPDM rubber substrate 1, the width of the upper welding layer 12 is the same as the width of the lower welding layer 11, and the lengths of the upper welding layer 12, the lower welding layer 11 and the EPDM rubber substrate 1 are all the same.
[0022] In the above scheme,
[0023] By respectively arranging the upper welding layer 12 and the lower welding layer 11 on the upper and lower surfaces of the EPDM rubber substrate 1, the following effects can be achieved:
[0024] 1. The upper welding layer 12 and the lower welding layer 11 are provided to transform the rubber waterproof layer which cannot be hot-air welded into a new type of EPDM rubber waterproof material which can be welded;
[0025] 2. When overlapping adjacent coils, the lower welding layer 11 of one coil is overlapped with the upper welding layer 12 of the previous coil. The upper welding layer 12 and the lower welding layer 11 are integrated into one by hot air welding. Hot air welding is easy to operate, and the overlapping quality of hot air welding is better than that of adhesive bonding, with a peel strength of ≥5.0N / mm, which can effectively improve the waterproof sealing effect.
[0026] In this embodiment, the upper welding layer 12 is a thermoplastic polyolefin hot melt adhesive layer or a two-component polyurethane hot melt adhesive layer.
[0027] In the above scheme, a thermoplastic polyolefin hot melt adhesive layer or a two-component polyurethane hot melt adhesive layer is selected as the upper welding layer 12, which can make the main material and the weldable material layer have good compatibility, and will not be easily separated after wet and hot cycles. At the same time, it is non-sticky and does not require an isolation film as a barrier material. During construction, hot air baking at a temperature higher than the melting point of the material (300-500°C) is used and then pressed to achieve connection.
[0028] In this embodiment, the lower welding layer 11 is a thermoplastic polyolefin hot melt adhesive layer or a two-component polyurethane hot melt adhesive layer.
[0029] In the above scheme, a thermoplastic polyolefin hot melt adhesive layer or a two-component polyurethane hot melt adhesive layer is selected as the lower welding layer 11, which can make the main material and the weldable material layer have good compatibility, and will not be easily separated after wet and hot cycles. At the same time, it is non-sticky and does not require an isolation film as a barrier material. During construction, hot air baking at a temperature higher than the melting point of the material (300-500°C) is used and then pressed to achieve connection.
[0030] In this embodiment, an overlap identification line 13 is provided on the upper surface of the EPDM rubber substrate 1 , and the overlap identification line 13 is located on the inner side of the upper welding layer 12 .
[0031] In the above scheme, the overlapping arrangement is simpler and more accurate, and an overlapping identification line 13 is provided on the upper surface of the EPDM rubber substrate 1 to facilitate the overlapping of adjacent coils.
[0032] As an embodiment, both ends of the reel tube 2 are open structures, and handles 3 are provided at the openings at both ends of the reel tube 2; the handles are convenient for workers to hold and lift the reel and coiled material.
[0033] As an embodiment, a first strap 4 is provided at the opening of one end of the reel tube 2, and a second strap 5 is provided at the opening of the other end; the first strap and the second strap can be tied together or snapped together to position the rolled material, and when not in use, the first strap and the second strap can be separated and stored in the reel tube.
[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A weldable EPDM polymer waterproofing membrane, characterized in that: The invention comprises an EPDM rubber matrix (1), wherein the EPDM rubber matrix (1) is wound on a reel tube (2), a lower welding layer (11) is provided at the side edge of the lower surface of the EPDM rubber matrix (1), and an upper welding layer (12) is provided at the side edge of the upper surface of the EPDM rubber matrix (1), the width of the upper welding layer (12) is the same as the width of the lower welding layer (11), and the lengths of the upper welding layer (12), the lower welding layer (11) and the EPDM rubber matrix (1) are all the same; and an overlap identification line (13) is provided on the upper surface of the EPDM rubber matrix (1), and the overlap identification line (13) is located on the inner side of the upper welding layer (12).
2. The weldable EPDM polymer waterproofing membrane according to claim 1, characterized in that: The upper welding layer (12) is a thermoplastic polyolefin hot melt adhesive layer or a two-component polyurethane hot melt adhesive layer.
3. The weldable EPDM polymer waterproofing membrane according to claim 1, characterized in that: The lower welding layer (11) is a thermoplastic polyolefin hot melt adhesive layer or a two-component polyurethane hot melt adhesive layer.
4. The weldable EPDM polymer waterproofing membrane according to claim 1, characterized in that: Both ends of the reel tube (2) are open structures, and handles (3) are provided at the openings at both ends of the reel tube (2).
5. The weldable EPDM polymer waterproofing membrane according to claim 1, characterized in that: A first binding belt (4) is provided at one opening end of the reel tube (2), and a second binding belt (5) is provided at the other opening end.