APF self-adhesive waterproof coiled material

Through the design of support frame and through holes, combined with the uniform distribution of polymer sheets and self-adhesive layers, the problems of complex construction and poor bonding performance of traditional waterproof coils are solved, the strength and bonding stability of waterproof coils are improved, and the complex base layer is adapted to, and the material cost and construction difficulty are reduced.

CN223293187UActive Publication Date: 2025-09-02NO 3 ENG COMPANY OF CHINA RAILWAY NO 8 ENG GRP +1
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Patent Information

Application Number
CN202422406871.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-09-02
Estimated Expiration
2034-09-30

AI Technical Summary

Technical Problem

Traditional waterproof coils have complex construction, large fire hazards, poor bonding performance, weak ability to adapt to deformation of the base layer, high material cost, easy to bulge, difficult to maintain, and difficult to construct on wet or uneven base layer.

Method used

The support frame design is adopted, with grooves and through holes on the support frame, polymer sheets and grooves are matched, and the self-adhesive layer is arranged correspondingly with the through holes. A waterproof layer is installed at both ends of the support frame, combining an isolation film and a glue layer to form a stable stress-bearing structure. The self-adhesive layer is evenly distributed through the through holes, and grooves are installed on the support frame to adapt to the deformation of the base layer.

Benefits of technology

It improves the overall strength and bonding stability of the waterproof coil, reduces the material usage and construction difficulty, enhances waterproof performance, adapts to complex surface construction, and reduces the risk of leakage and degumming or cracking caused by thermal expansion and contraction.

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Abstract

The utility model relates to the technical field of waterproof coiled materials, and particularly discloses an APF self-adhesion waterproof coiled material which is characterized by comprising a supporting frame, a groove is formed in the upper end of the supporting frame, and a plurality of through holes are formed in the groove in a penetrating mode; a macromolecule sheet is arranged in the groove and connected with the groove in a matched mode, a plurality of self-adhesive layers are correspondingly arranged at the lower end of the groove, and the self-adhesive layers correspond to the through holes in position. The utility model aims to solve the problems of waste of a self-adhesive layer, poor air permeability, high possibility of swelling, high material cost, weak base layer deformation adaptability, high maintenance difficulty and the like caused by full-surface attachment of the self-adhesive layer of the existing waterproof roll.
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Description

Technical Field

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

[0002] In the field of construction engineering, waterproofing is a key step in ensuring the structural safety and service life of buildings. However, traditional waterproof membranes have many shortcomings in practical applications.

[0003] Conventional waterproofing membranes, such as ordinary asphalt membranes, typically require hot-melt application during installation. This is not only cumbersome and demanding on the construction environment and worker skills, but also poses a fire hazard and easily produces harmful gases, which are detrimental to the environment and the health of construction workers. Furthermore, these membranes exhibit poor bonding properties, making them prone to debonding and cracking, which compromises waterproofing effectiveness.

[0004] In addition, many traditional waterproof membranes have very stringent requirements on the base layer, requiring the base layer to be dry and flat. They cannot be directly constructed on a wet or uneven base layer, which to a certain extent increases the cost and time of base layer treatment before construction.

[0005] At the same time, the existing waterproof membrane includes a self-adhesive layer and a self-adhesive layer, and the self-adhesive layer that is laminated on the entire surface will completely cover the surface of the membrane. When laying, bubbles are generated during the laminating process due to the entire surface laminating, which makes it difficult for the bubbles to pass through and be discharged. When the membrane is laid, the bubbles inside accumulate and cause bulging problems. The self-adhesive layer that is laminated on the entire surface lacks expansion and contraction space, and the bubbles that are not discharged in the pasted waterproof membrane after pasting will cause the bubbles to swell due to thermal expansion and contraction, resulting in local debonding or rupture around the bubbles. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the technical problem solved by the present invention is to provide an APF self-adhesive waterproof membrane to improve the existing waterproof membrane self-adhesive layer caused by the whole surface lamination of the self-adhesive layer waste, poor air permeability, easy bulging, high material cost, weak ability to adapt to the deformation of the base layer and difficult maintenance.

[0007] In order to solve the above problems, the technical solution adopted by the present invention is: an APF self-adhesive waterproof membrane, characterized in that: it includes a support frame, a groove is provided at the upper end of the support frame, and evenly arranged through holes are provided in the groove; a polymer sheet is provided in the groove and is connected to the groove, and a plurality of self-adhesive layers are provided at the lower end of the groove, and the self-adhesive layers are arranged corresponding to the positions of the through holes.

[0008] The beneficial effects of this solution are: the setting of the support frame provides a stable support structure for the entire coil, enhancing the overall strength and durability of the coil; the close fit between the polymer sheet and the groove can form an integral force-bearing structure, effectively dispersing external stress, so that the coil is not easily deformed or damaged when subjected to pressure or tension, thereby enhancing the overall strength and stability of the coil, being able to better fit the base surface, and reducing the possibility of leakage; at the same time, the self-adhesive layer is arranged in correspondence with the through-hole position, so that the self-adhesive layer is evenly arranged and bonded through the through-holes on the support frame, which can make the bonding force between the coil and the bonded surface more evenly distributed, avoiding the situation where the local bonding force is too large or too small, thereby improving the bonding stability and reducing the risk of bonding failure; the uniform bonding can better adapt to the unevenness or slight undulations of the bonded surface, and improve the fit and bonding effect of the coil on complex surfaces.

[0009] Furthermore, an isolation membrane is provided at the upper end of the polymer sheet, and the width of the isolation membrane is greater than the width of the polymer sheet. The wider isolation membrane provides a larger operating area, reduces the difficulty of peeling off the film, and improves construction efficiency. During transportation, storage and preparation before construction, the wider isolation membrane can effectively prevent the edge of the polymer sheet from being contaminated, worn or damaged, thereby ensuring the integrity and waterproof performance of the roll material.

[0010] Furthermore, the self-adhesive layer is connected to the through holes, and the through holes can allow the self-adhesive to be distributed more evenly during construction and bonding, avoiding the local adhesive layer being too thick or too thin, thereby ensuring that the bonding force of the entire bonding surface is uniform and consistent. By providing the through holes, the material usage is appropriately reduced without affecting the performance, reducing the overall weight of the roll, and facilitating transportation and construction operations.

[0011] Furthermore, the thickness of the self-adhesive layer is greater than the depth of the through hole. The thicker self-adhesive layer can provide stronger bonding force, ensure close bonding between the roll material and the base layer, and improve the reliability of waterproofing. Even if there are slight unevenness on the base layer, the thicker self-adhesive layer can fully fill these gaps to ensure comprehensive fit between the roll material and the base layer.

[0012] Furthermore, waterproof layers are provided at both ends of the support frame and are fixedly connected to the support frame. Providing waterproof layers at both ends of the support frame where water easily enters can effectively prevent moisture from penetrating from these key parts, thereby improving the overall waterproof performance. Even if a small amount of moisture enters the vicinity of the support frame, the waterproof layers at both ends can prevent moisture from further diffusing into the interior, thereby reducing damage to the internal structure.

[0013] Furthermore, a glue layer is provided on the waterproof layer, and the glue layer is arranged parallel to the two ends of the support frame. The glue layer is fixedly fitted to the waterproof layer, so that the glue layer and the waterproof layer are tightly combined, thereby improving the bonding strength between them and ensuring that the glue layer is not easily separated from the waterproof layer during use. When the ambient temperature changes, the fixed fit of the glue layer and the waterproof layer can expand and contract together, thereby reducing debonding or cracking caused by thermal expansion and contraction.

[0014] Furthermore, the support frame is provided with a plurality of grooves, which are triangular grooves, and a notch is provided at the lower end of the groove. By reasonably arranging the grooves, the consumption of raw materials is reduced without affecting the overall strength and performance of the support frame, and the production cost is reduced. At the same time, it is convenient to cut and separate the waterproof membrane during the construction process, thereby improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 It is a structural diagram of the present utility model. DETAILED DESCRIPTION

[0017] The reference numerals in the drawings of the specification include: support frame 1, through hole 2, groove 3, polymer sheet 4, self-adhesive layer 5, waterproof layer 6, glue layer 7, isolation film 8, groove 9, and cut mark 10.

[0018] Example 1 is basically as shown in the attached Figure 1-2 As shown: An APF self-adhesive waterproof membrane, including a support frame 1, the support frame 1 is a support frame 1 made of modified rubber, a groove 3 is provided on the support frame 1, the groove is used to be embedded and connected with the polymer sheet set in the groove, and a plurality of arranged through holes 2 are provided at the bottom of the groove 3 along the width direction. The set polymer sheet 4 includes but is not limited to high-density polyethylene (HDPE), low-density polyethylene (LDPE) and linear low-density polyethylene (LLDPE). A self-adhesive layer 5 is provided at the lower end of the polymer sheet 4, and the self-adhesive layer 5 is provided corresponding to the through holes provided at the bottom of the groove, and the self-adhesive layer 5 extends to the lower section position of the support frame through the through holes.

[0019] The thickness of the set self-adhesive layer 5 is greater than the depth of the through hole 2. Since the self-adhesive layer is a flexible viscose material, the self-adhesive layer 5 can be squeezed and expanded to both sides of the through hole 2 during construction, and the bonding effect is also better, ensuring a close bond between the coil and the base layer. Even if there are slight unevenness in the base layer, the thicker self-adhesive layer 5 can fully fill these gaps, ensuring full fit between the coil and the base layer.

[0020] An isolation membrane 8 is provided on the upper surface of the polymer sheet 4. The width of the isolation membrane 8 is greater than that of the polymer sheet 4. The wider isolation membrane 8 provides a larger operating area, reduces the difficulty of peeling off the membrane, and improves construction efficiency. During transportation, storage and preparation before construction, since the waterproof membrane needs to be hoisted or placed during transportation, it is easy to cause wear on the edges. The wider isolation membrane 8 can effectively prevent the edges of the polymer sheet 4 from being worn or damaged, and the bonding ability of the edge of the waterproof membrane will not be affected during the later laying process.

[0021] The waterproof membrane is provided with a plurality of grooves 9, which are triangular grooves 9, and a notch 10 is provided at the lower end of the groove 9. By reasonably arranging the grooves 9, without affecting the overall strength and performance of the support frame, the triangular grooves can provide more deformation space when the membrane is stretched or bent, so that it can better adapt to construction surfaces of different shapes and angles, thereby improving the application ability of the membrane in complex environments. At the same time, when the temperature changes, the grooves can provide a certain buffer space for the thermal expansion and contraction of the membrane, thereby reducing the deformation and damage of the membrane caused by temperature changes.

[0022] During construction, workers can easily peel off the isolation film 8 and lay the roll material on the base layer. The support frame 1 made of modified rubber gives the roll material good flexibility and support, so that it can adapt well to the unevenness of the underground garage floor. When the thickness of the self-adhesive layer 5 is greater than the through-hole position, during the pasting process, the waterproof roll material is squeezed during pasting, and the self-adhesive layer, due to the characteristics of the adhesive layer, can fill the tiny bumps of the base layer and fit tightly with the base layer.

[0023] The waterproof layer 6 and glue layer 7 provided on both sides of the width of the roll effectively prevent moisture from penetrating from the edges, further enhancing the overall waterproof effect. The triangular grooves 9 and cuts 10 on the roll provide more deformation space when the roll is stretched or bent, so that it can better adapt to construction surfaces of different shapes and angles, improving the application ability of the roll in complex environments. At the same time, when the temperature changes, the grooves can provide a certain buffer space for the thermal expansion and contraction of the roll, reducing the deformation and damage of the roll caused by temperature changes.

[0024] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is clear to those skilled in the art that various changes, modifications, substitutions, and variations of these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. An APF self-adhesive waterproof membrane, characterized by: It includes a support frame, the upper end of which is provided with a groove, and the groove is provided with evenly arranged through holes; a polymer sheet is provided in the groove and connected to the groove, and a plurality of self-adhesive layers are provided at the lower end of the groove, and the self-adhesive layers are arranged corresponding to the positions of the through holes.

2. The APF self-adhesive waterproof membrane according to claim 1, characterized in that: An isolation film is provided at the upper end of the polymer sheet, and the width of the isolation film is greater than the width of the polymer sheet.

3. The APF self-adhesive waterproof membrane according to claim 1, characterized in that: The self-adhesive layer is connected to the through hole in a coordinated manner.

4. The APF self-adhesive waterproof membrane according to claim 1, characterized in that: The thickness of the self-adhesive layer is greater than the depth of the through hole.

5. The APF self-adhesive waterproof membrane according to claim 1, characterized in that: Waterproof layers are provided on both sides of the width of the support frame and are fixedly connected to the support frame.

6. The APF self-adhesive waterproof membrane according to claim 5, characterized in that: A glue layer is provided on the waterproof layer. The glue layer is arranged in parallel at both ends of the support frame. The glue layer is fixedly fitted to the waterproof layer.

7. The APF self-adhesive waterproof membrane according to claim 1, characterized in that: The support frame is provided with a plurality of grooves, which are triangular grooves, and a cutting mark is provided at the lower end of the groove.