Multilayer waterproofing roll material with strong environmental protection

Abstract

The utility model relates to waterproof roll material technical field, concretely is a multilayer waterproof roll material with strong environmental protection. It includes waterproof roll material body, and the both ends of waterproof roll material body are provided with first bending part and second bending part respectively, wherein, first bending part bends upwards, and second bending part bends downwards, waterproof roll material body is provided with two self -adhesive on the inner surface of one end of second bending part along its length direction, and the outer surface of two self -adhesive all covers isolation film, and waterproof roll material body includes upper surface heat insulating material, upper modified pitch layer, tensile layer, waterproof material, base layer and lower modified pitch layer in proper order from top to bottom. The present technical scheme can reduce the phenomenon that the adhesive part between two waterproof roll materials appears water seepage, and delays the ageing time of glue.

Description

Technical Field

[0001] This utility model relates to the field of waterproof membrane technology, and in particular to a multi-layered waterproof membrane with strong environmental protection. Background Technology

[0002] With the booming development of the construction industry, waterproofing plays a crucial role in the durability and functionality of building structures. Traditional waterproof membranes have revealed numerous problems in practical applications, making the development of a highly environmentally friendly, multi-layered waterproof membrane an urgent priority. Single-layer waterproof membranes are insufficient to meet the waterproofing needs of complex environments. Membranes made from a single material have poor adaptability to substrate deformation; when foundation settlement, structural expansion and contraction cause cracks in the substrate, single-layer waterproof membranes are easily torn, thus losing their waterproofing effect. In some locations with special waterproofing requirements, such as basements and tunnels, single-layer waterproof membranes cannot effectively prevent the infiltration and erosion of groundwater.

[0003] In existing technologies, in order to improve the waterproof performance of the waterproof membrane, waterproof treatment is carried out at the junction of two waterproof membranes. The common method is to overlap the sides of the two waterproof membranes to form a small overlap, and then use adhesive to bond the overlap. However, if there is a small amount of water on the waterproof membrane, the water will seep into the adhesive layer through the adhesive gap, which can easily cause corrosion and delamination of the adhesive layer, and thus easily lead to water entering the bottom of the waterproof membrane. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a multi-layered waterproof membrane with strong environmental protection.

[0005] The present invention provides an environmentally friendly multi-layer waterproof membrane, comprising a waterproof membrane body, with a first bend and a second bend at each end of the waterproof membrane body, wherein the first bend bends upward and the second bend bends downward; two self-adhesive strips are provided along the length of the inner surface of the waterproof membrane body adjacent to the end of the second bend, and both self-adhesive strips are covered with a release film on their outer surfaces; the waterproof membrane body comprises, from top to bottom, an upper surface heat insulation material, an upper modified bitumen layer, a tensile layer, a waterproof material, a base layer, and a lower modified bitumen layer.

[0006] Preferably, the upper surface insulation material is provided with a scratch-resistant coating, a metal film, and an ultraviolet-absorbing layer from top to bottom.

[0007] Preferably, the waterproof material is one of TPO, PVC and EPDM.

[0008] Preferably, the tensile layer is a metal mesh wire or a mesh cloth.

[0009] Preferably, the base layer is made of one of the following materials: polyester felt, fiberglass felt, fiberglass reinforced polyester felt, or jute cloth.

[0010] Preferably, the lower surface layer is made of PE film, and the lower surface of the lower surface layer is provided with anti-slip texture.

[0011] Preferably, the waterproof membrane body has a scale strip along its length.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects: by bonding the first bend and the second bend together, the adhesive part of the two waterproof membranes is slightly raised. Compared with the traditional sealing structure, it is less likely to cause water seepage between the adhesive part of the first bend and the second bend, and it also delays the aging time of the adhesive. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a structural diagram showing the connection relationship between the two waterproof membrane bodies in this utility model.

[0015] Figure 3 This is an exploded view of the structure of the waterproof membrane body in this utility model.

[0016] Figure 4 for Figure 1 A magnified schematic diagram of the structure at point A.

[0017] Reference numerals: 1. Waterproof membrane body; 101. First bend; 102. Second bend; 2. Scale strip; 3. Upper surface insulation material; 4. Upper modified bitumen layer; 5. Tensile layer; 6. Waterproof material; 7. Subbase layer; 8. Lower modified bitumen layer; 9. Self-adhesive; 10. Release film; 11. Lower surface layer. Detailed Implementation

[0018] Example 1

[0019] like Figures 1-4 As shown in the figure, the multi-layer waterproof membrane with strong environmental protection proposed in this embodiment includes a waterproof membrane body 1. The two ends of the waterproof membrane body 1 are respectively provided with a first bending portion 101 and a second bending portion 102, wherein the first bending portion 101 bends upward and the second bending portion 102 bends downward.

[0020] Two self-adhesive strips 9 are provided along the length of the inner surface of the waterproof membrane body 1 near one end of the second bend 102. The outer surfaces of the two self-adhesive strips 9 are covered with a release film 10. The waterproof membrane body 1 includes, from top to bottom, an upper surface heat insulation material 3, an upper modified bitumen layer 4, a tensile layer 5, a waterproof material 6, a base layer 7, and a lower modified bitumen layer 8.

[0021] Waterproof material 6 is made of one of TPO, PVC and EPDM; among them, TPO (thermoplastic polyolefin) is environmentally friendly and plasticizer-free, and has UV protection; PVC (polyvinyl chloride) has good flexibility and strong flame retardancy; EPDM (ethylene propylene diene monomer rubber) has excellent weather resistance, a service life of over 30 years, and is resistant to chemical corrosion.

[0022] The base layer 7 is made of one of the following materials: polyester felt, fiberglass felt, fiberglass-reinforced polyester felt, or jute cloth. Polyester felt is made of polyester fibers, which are interwoven into a felt-like structure using a special process. This structure has a uniform pore distribution and high density. Polyester felt has the advantages of high strength and high elongation, capable of withstanding large tensile forces without easily breaking, and can better adapt to the deformation of the base layer during construction. It has good dimensional stability; under different temperature and humidity conditions, the waterproof membrane with a polyester felt base is not prone to shrinkage or expansion, ensuring the flatness and laying quality of the membrane. It has excellent puncture resistance, resisting punctures from sharp objects and effectively protecting the waterproof layer. Fiberglass felt is made from glass fiber through a non-woven process. Glass fiber has high strength and chemical stability, good water resistance, and its performance is not significantly affected by long-term contact with water. Fiberglass felt has a strong corrosion resistance, resisting the erosion of various chemicals; it has good dimensional stability and is not easily deformed by environmental factors. However, its elongation is relatively low. Fiberglass reinforced polyester felt combines the advantages of fiberglass and polyester fibers. It is usually made by adding glass fibers to polyester felt for reinforcement. Fiberglass reinforced polyester felt has both the high strength and high elongation of polyester felt and the good dimensional stability and corrosion resistance of fiberglass felt, resulting in superior overall performance. Jute cloth is woven from natural jute fibers, possessing a certain degree of flexibility and breathability, as well as excellent environmental performance. It is a natural material; its price is relatively low, making it economical. However, jute cloth has relatively weak strength and water resistance.

[0023] The lower surface layer 11 is made of PE film. The lower surface of the lower surface layer 11 is provided with anti-slip texture. The anti-slip texture can improve the anti-slip effect of the waterproof membrane, increase the contact area between it and the adhesive, and improve the bonding effect.

[0024] The waterproof membrane body 1 has a scale strip 2 along its length. The scale strip 2 allows construction workers to measure the length of the waterproof membrane without carrying measuring tools.

[0025] In this embodiment, when laying waterproof membrane, the traditional method is to overlap the joints of two waterproof membranes and then use adhesive to bond the joints. This method is prone to water seepage at the joints, and long-term contact between water and adhesive can easily lead to corrosion of the adhesive, which in turn can cause the waterproof membrane to delaminate, thus failing to meet the subsequent waterproofing effect.

[0026] In this technical solution, the first bend 101 and the second bend 102 are overlapped. It should be noted that the second bend 102 is located at the lower end of the first bend 101, such as... Figure 4 As shown, during bonding, both release films 10 are peeled off, and then the bonding positions of the first bend 101 and the second bend 102 are pressed firmly, so that the first bend 101 and the second bend 102 are bonded together, and the left end of the waterproof membrane body 1 on the right side is bonded to the first bend 101 on the left side of the waterproof membrane body 1. With the above structure, the bonding part of the two waterproof membranes is slightly raised, which can prevent rainwater from seeping into the bonding part between the first bend 101 and the second bend 102, and delay the aging time of the adhesive.

[0027] Example 2

[0028] like Figure 3 As shown in this embodiment, an environmentally friendly multi-layer waterproof membrane is proposed. Compared with Embodiment 1, in this embodiment, the upper surface heat insulation material 3 is provided with a scratch-resistant coating, a metal film, and an ultraviolet absorption layer from top to bottom. The scratch-resistant coating provides wear-resistant protection, the metal film directly reflects the main source of infrared heat, and the total solar energy blocking rate can reach 40%-60%. The ultraviolet absorption layer blocks 99% of ultraviolet rays, which can play a role in sun protection and anti-aging. In summary, the setting of the upper surface heat insulation material 3 can isolate and reflect most of the heat, avoid the rapid release of harmful substances caused by rapid heating of the waterproof membrane, and is safer and more environmentally friendly.

[0029] Example 3

[0030] like Figure 3 As shown, this embodiment proposes an environmentally friendly multi-layer waterproof membrane. Compared with Embodiment 1, in this embodiment, the tensile layer 5 is a metal mesh wire or mesh cloth. The setting of the tensile layer 5 can improve the tensile performance of the waterproof membrane.

[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A multi-layered waterproof membrane with strong environmental protection features, characterized in that, The waterproof membrane body (1) includes a first bending portion (101) and a second bending portion (102) at both ends of the waterproof membrane body (1), wherein the first bending portion (101) bends upward and the second bending portion (102) bends downward; two self-adhesive strips (9) are provided along the length direction on the inner surface of the waterproof membrane body (1) adjacent to the end of the second bending portion (102), and the outer surface of the two self-adhesive strips (9) is covered with a release film (10); the waterproof membrane body (1) includes, from top to bottom, an upper surface heat insulation material (3), an upper modified bitumen layer (4), a tensile layer (5), a waterproof material (6), a base layer (7), and a lower modified bitumen layer (8).

2. The environmentally friendly multi-layer waterproof membrane according to claim 1, characterized in that, The upper surface insulation material (3) has a scratch-resistant coating, a metal film and an ultraviolet absorption layer on one side from top to bottom.

3. The environmentally friendly multi-layer waterproof membrane according to claim 1, characterized in that, The waterproof material (6) is one of TPO, PVC and EPDM.

4. The environmentally friendly multi-layer waterproof membrane according to claim 1, characterized in that, The tensile layer (5) is a metal mesh wire or mesh cloth.

5. The environmentally friendly multi-layer waterproof membrane according to claim 1, characterized in that, The base layer (7) is made of one of the following materials: polyester felt, fiberglass felt, fiberglass reinforced polyester felt or jute cloth.

6. The environmentally friendly multi-layer waterproof membrane according to claim 1, characterized in that, The lower surface layer (11) is made of PE film, and the lower surface of the lower surface layer (11) is provided with anti-slip texture.

7. The environmentally friendly multi-layer waterproof membrane according to claim 1, characterized in that, A scale strip (2) is provided on the waterproof membrane body (1) along its length.

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