CN214688351U

CN214688351U - Polymer waterproofing membrane

Info

Publication number: CN214688351U
Application number: CN202120454087.5U
Authority: CN
Inventors: 黄龙香; 李俊成
Original assignee: Foshan Keshun Building Material Co ltd
Current assignee: Foshan Keshun Building Material Co ltd
Priority date: 2021-03-02
Filing date: 2021-03-02
Publication date: 2021-11-12
Anticipated expiration: 2031-03-02

Abstract

The utility model relates to the field of waterproof coiled materials, in particular to a polymer waterproof coiled material which is used for solving the problems of small tensile strength and easy degumming of the existing polymer waterproof coiled material; the utility model provides a high polymer waterproof coiled material, which comprises a protective layer, a first waterproof coiled material layer and a second waterproof coiled material layer which are sequentially arranged from top to bottom, wherein the protective layer is an acrylic acid film layer, the first waterproof coiled material layer is a flexible PVC waterproof coiled material layer, and the second waterproof coiled material layer is a tough PVC waterproof coiled material layer; the waterproof coiled material combines the advantages of PVC high-molecular waterproof coiled materials and acrylic waterproof coatings, improves the tensile force and the tensile strength, reduces the stable change rate of heat treatment size, can reduce the wrinkle abnormality caused by the environmental temperature, and simultaneously has good weather resistance, aging resistance, puncture resistance and flexibility; and, the utility model discloses a water paint layer is good with concrete adhesion property, and it is waterproof to form the skin formula with post-poured concrete, and water-proof effects is good, is difficult for coming unstuck.

Description

Polymer waterproofing membrane

Technical Field

The utility model relates to a waterproofing membrane field, more specifically relates to a polymer waterproofing membrane.

Background

The waterproof roll is mainly used for building walls, building basements, bottom plates, roofs, tunnels, highways, refuse landfills and the like, can be curled into a roll-shaped flexible building material product for resisting external rainwater and underground water permeation, is used as a leakage-free connection between an engineering foundation and a building, is a waterproof first barrier of the whole engineering, and plays a vital role in the whole engineering.

At present, the waterproof coiled materials mainly used are mainly divided into two categories, namely high polymer modified asphalt waterproof coiled materials and high polymer waterproof coiled materials. The high-molecular waterproof coiled material has excellent high and low temperature resistance, good tensile property, large elongation at break, high tearing strength, good ozone resistance and weather resistance, good chemical corrosion resistance and simple construction process: the method is suitable for single-layer and cold bonding construction, is convenient to operate, reduces the labor intensity of construction, and improves the construction efficiency. Therefore, the polymer waterproof coiled material is in development and rising stages in the whole waterproof material industry of China and is developing vigorously.

The high-molecular waterproof coiled material can be divided into rubber, resin and rubber-plastic blending according to different base materials. The thickness is generally 1.0mm, 1.2mm, 1.5mm, 2.0mm and other different thickness specifications. Common construction methods include thermal welding, self-adhesive construction, construction and the like. The high-molecular waterproof coiled material has the characteristics of high tensile strength, high elongation, high tear strength, low-temperature flexibility, self-healing property and the like, and is commonly used for the bottom plate of the basement of the building. The cold construction can be carried out, the construction process is simple, the first-level waterproof effect can be achieved through single-layer construction, the requirements of environmental protection and energy conservation are met, the service life is long, and the long-term waterproof requirement of the building can be met.

The high-molecular waterproof coiled material is compounded by multiple layers, and mainly comprises 3 layers, wherein the first layer is a waterproof sheet, and mainly comprises plastics (HDPE, TPO and the like) and rubber (EPDM) as main waterproof layers. The second layer is a bonding layer, and the materials of the bonding layer are modified asphalt, modified butyl rubber, hot melt adhesive and the like at present. The third layer is a protective layer which mainly plays a role in protecting the bonding layer and is also paved with a layer of inorganic particles as a protective layer.

In the traditional process, a high-molecular waterproof coiled material is commonly used for a basement bottom plate, and the laminated structure of the high-molecular waterproof coiled material is that sheets such as HDPE (high-density polyethylene), TPO (thermoplastic polyolefin) and the like are used as base materials, hot-melt pressure-sensitive adhesive is coated on the surface of the sheets, and then special processing sand is used for covering. During construction, the coiled material is irradiated by ultraviolet rays, so that the performance is attenuated, and the durability of the coiled material is influenced. Meanwhile, the sand surface subjected to special treatment is easily polluted in the construction process, so that the bonding property of the coiled material and the concrete is poor, hollowing and the like are generated, and the waterproof effect is further influenced.

In addition, the heat treatment size change rate of the high-molecular waterproof coiled material directly influences the service performance and the construction effect of the material. The large dimensional change rate of HDPE, TPO and other materials in heat treatment can cause the shrinkage or elongation of the materials in the use process, and the wrinkling phenomenon of the surface of the coil is serious. At present, the common HDPE and TPO high-molecular waterproof coiled materials have small tensile strength and are difficult to resist the settlement deformation of foundation foundations. In addition, common polymer waterproofing membrane is glued overlap joint at present, and its overlap edge is glue bonding overlap edge, and this type of overlap edge is easily corroded or leads to coming unstuck after the environmental ageing nature is poor after the coiled material is buried in soil layer or concrete layer, and the overlap joint appears the infiltration because of coming unstuck, unusual such as leak.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at overcoming above-mentioned prior art's at least one defect (not enough), provide a polymer waterproofing membrane for solve the problem that prior art polymer waterproofing membrane tensile strength is little, easily come unstuck.

The utility model provides a technical scheme who takes, a polymer waterproofing membrane, including protective layer, first waterproof roll material layer, the waterproof roll material layer of second that from top to bottom arranged in proper order, the protective layer is the acrylic acid rete, first waterproof roll material layer is the waterproof roll material layer of pliable and tough type PVC, the waterproof roll material layer of second is the waterproof roll material layer of tough and tough type PVC.

The acrylic acid film layer is used as the topmost layer, and a protective film is formed on the surface of the coiled material, so that adverse effects of water vapor and illumination on the performance of the coiled material are prevented; the first waterproof roll layer is a flexible PVC waterproof roll layer, the flexible PVC waterproof roll layer is prepared by mixing modified PVC resin, a plasticizer, a stabilizer, an ultraviolet aging resistant agent, a heat aging resistant agent, POE (polyolefin elastomer), a silane coupling agent and other materials, has good aging resistance, bonding property and flexibility, and can be used as a surface layer PVC waterproof roll layer to further prevent external factors such as water vapor, ultraviolet irradiation and the like from influencing the performance of the roll, particularly prevent the problems of roll aging, degumming and the like caused by ultraviolet irradiation; the second waterproof roll layer is a tough PVC waterproof roll layer, the tough PVC waterproof roll layer is prepared by mixing modified PVC resin, a plasticizer, a stabilizer, PE and other materials, has good tensile strength, elongation and other properties, is used as a bottom PVC waterproof roll layer, is directly contacted with concrete or a base surface and other stone blocks and reinforcing steel bar head protrusions during construction, and has good toughness so as to prevent the roll from being broken by the stone blocks, the reinforcing steel bar heads and other protrusions.

The acrylic acid film layer at the topmost layer of the high polymer waterproof coiled material can effectively prevent external factors such as water vapor, illumination and the like from generating adverse effects on the coiled material, so that the coiled material is aged and easy to strip; the ageing resistance, the bonding property and the flexibility of the flexible PVC waterproof coiled material can be further improved, and the problems of ageing and easy degumming of the coiled material are solved; the tough PVC waterproof coiled material at the bottom layer has good tensile strength, elongation and other properties, and can prevent the coiled material from being broken by the bulges such as stones, steel bar heads and the like on the base surface.

Further, the acrylic acid film layer is formed by spraying acrylic acid waterproof paint on the flexible PVC waterproof roll layer and drying.

The acrylic waterproof coating has the solid content of the aqueous coating of 30-50 percent, the thickness of 0.20-0.30 mm after film forming, the film forming and drying temperature of 80-120 ℃ and the drying time of 5-10 min. The acrylic acid waterproof coating layer has excellent performances of weather resistance, durability, ultraviolet resistance, stain resistance and the like, and has better adhesive property with the flexible PVC waterproof coiled material.

Further, the thickness of the flexible PVC waterproof coiled material layer is 0.40mm-0.60 mm; the thickness of the tough PVC waterproof coiled material layer is 0.50mm-0.80 mm.

Further, still include the geotechnological cloth layer, arrange below the second waterproof roll material layer.

The geotextile layer can be used as a fiber back lining layer of the high-polymer waterproof coiled material, so that the tensile strength and the tensile force of the coiled material are further improved, the size change rate after heat treatment is reduced, and the geotextile layer can be well prevented from being broken by bulges such as stones, steel bar heads and the like during construction. The utility model discloses in, regarding as polymer waterproofing membrane's bottom with geotechnological cloth layer and base face basis reason in addition, geotechnological cloth layer's cost is lower than tough type PVC waterproofing membrane, can take the tough type PVC waterproofing membrane of thinner thickness, and one deck geotechnological cloth layer is added again, not only can effectively remove the bulk cost of low coiled material, also can further promote to the tensile strength of coiled material.

Furthermore, the geotextile layer is made of geotextile with the density of 80 g/square meter to 120 g/square meter and the thickness of 0.40mm to 0.80 mm.

Further, the geotextile is a non-woven short fiber or a non-woven long fiber polyester geotextile.

Furthermore, a first overlapping edge is reserved on one side of the acrylic film layer, and a second overlapping edge is reserved on the other side of the geotextile layer.

In the coiled material construction process, in order to realize faster and better lapping of the coiled material, the coiled material is provided with the lapping edges, including the lapping edges arranged on the surface and the bottom surface of the coiled material; acrylic acid rete is as polymer waterproofing membrane topmost layer, and one side is established on the acrylic acid rete on first overlap edge, geotechnological cloth layer is as polymer waterproofing membrane bottommost layer, and the opposite side is established on geotechnological cloth layer on second overlap edge, and first overlap edge just is good on the diagonal line of coiled material with second overlap edge, the overlap joint between the adjacent coiled material of being convenient for.

Further, the width of the first overlapping edge and the second overlapping edge is 80-100 mm.

Further, the first overlapping edge and the second overlapping edge on the adjacent coiled materials correspond up and down, and overlapping is carried out through thermal welding.

The first overlap edge of the former coiled material is on, and the second overlap edge of the latter coiled material is under, corresponds first overlap edge and second overlap edge from top to bottom, through the hot welding with two adjacent coiled materials overlap joint together, need not to adopt adhesive or other supplementary materials, can be in the same place adjacent coiled material overlap joint well, can not produce the gap, avoids leaking.

Further, the first waterproof roll material layer, the second waterproof roll material layer and the geotextile layer are bonded together through rolling.

The first waterproof roll material layer, the second waterproof roll material layer and the geotechnical cloth layer which are formed are aligned up and down, and all the layers are bonded together in a rolling mode without adhesives, so that all the layers of the roll material are highly bonded.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a polymer waterproofing membrane, the construction is simple and easy, the dependable performance, and is energy-concerving and environment-protective. The waterproof coiled material combines the advantages of PVC high-molecular waterproof coiled materials, acrylic waterproof coatings and geotextiles, improves the tensile force and tensile strength, reduces the stable change rate of heat treatment size, can reduce wrinkle abnormity caused by environmental temperature, has good weather resistance, aging resistance, puncture resistance and flexibility, and is also suitable for treatment of detail nodes. Moreover, the water-based coating layer of the utility model has good bonding property with concrete, forms skin type water resistance with post-poured concrete, and has good water-proof effect; in the use of construction, use welding overlap edge, the overlap joint is convenient, firm, the construction is simple and easy, the efficiency of construction is high, fast, need not to use naked light to toast the construction, reduces the risk that arouses the conflagration, but material recycle is energy-conserving, safe, environmental protection.

Drawings

Fig. 1 is a polymer waterproof roll according to embodiment 1 of the present invention.

Fig. 2 is a polymer waterproof roll according to embodiment 2 of the present invention.

Fig. 3 is a polymer waterproof roll according to embodiment 3 of the present invention.

The reference signs are: acrylic waterproof coating layer-1, flexible PVC waterproof roll layer-2, tough PVC waterproof roll layer-3, geotextile layer-4, first overlap edge-5, second overlap edge-6.

Detailed Description

The drawings of the present invention are for illustration purposes only and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example 1

As shown in fig. 1, a polymer waterproofing membrane, including protective layer, first waterproof roll material layer and the waterproof roll material layer of second that from top to bottom arranges in proper order, the protective layer is the acrylic acid rete, first waterproof roll material layer is flexible type PVC waterproof roll material layer 2, the waterproof roll material layer of second is tough and tensile type PVC waterproof roll material layer 3.

The acrylic acid film layer is formed by spraying acrylic acid waterproof paint on the flexible PVC waterproof coil layer 2 and drying, wherein the solid content of the water-based paint in the acrylic acid waterproof paint is 40%, the thickness of the acrylic acid waterproof paint after film forming is 0.30mm, the film forming drying temperature is 100 ℃, and the drying time is 10 min. The acrylic acid waterproof coating layer 1 has excellent weather resistance, durability, ultraviolet resistance, contamination resistance and other properties, and has better adhesive property with the flexible PVC waterproof coiled material. Acrylic acid waterproof coating layer 1 forms a layer protection film as the top layer on the coiled material surface, prevents that steam, illumination from producing harmful effects to the coiled material performance, and the coiled material has better ageing resistance, difficult degumming.

The first waterproof roll layer is a flexible PVC waterproof roll layer 2, the flexible PVC waterproof roll is prepared by mixing modified PVC resin, a plasticizer, a stabilizer, an ultraviolet aging resistant agent, a heat aging resistant agent, POE (polyolefin elastomer), a silane coupling agent and other materials, has good aging resistance, bonding property and flexibility, and can be used as a surface PVC waterproof roll layer to further prevent external factors such as water vapor and ultraviolet irradiation from influencing the performance of the roll, particularly prevent the problems of roll aging, degumming and the like caused by ultraviolet irradiation; this flexible type PVC waterproof roll material layer 2 is in the same place with acrylic acid waterproof coating layer 1 laminating, further promotes the ageing resistance, adhesive property and the pliability of coiled material.

The second waterproof roll layer is a tough PVC waterproof roll layer 3, the tough PVC waterproof roll is prepared by mixing modified PVC resin, a plasticizer, a stabilizer, PE and other materials, has good tensile strength, elongation and other properties, is used as a bottom PVC waterproof roll layer, is directly contacted with concrete or a base surface and other stone blocks and reinforcing steel bar head protrusions during construction, has good toughness, can prevent the roll from being damaged by the stone blocks, the reinforcing steel bar heads and other protrusions, and can be used as the bottom layer and directly contacted with the base surface.

The flexible PVC waterproof roll layer 2 and the tough PVC waterproof roll layer 3 of this embodiment are bonded together by means of calendering, and then the acrylic waterproof coating is coated on the surface of the flexible PVC waterproof roll layer 2, and dried to obtain the polymer waterproof roll.

Example 2

As shown in fig. 2, a polymer waterproofing membrane, for the polymer waterproofing membrane of embodiment 1, this embodiment is in geotechnical cloth layer 4 has been arranged to tough type PVC waterproofing membrane lower surface, and whole polymer waterproofing membrane's structure is from last to down being in proper order: protective layer, first waterproof roll material layer, waterproof roll material layer of second, geotechnological cloth layer 4.

The protective layer is an acrylic acid waterproof coating layer 1, the first waterproof roll material layer is a flexible PVC waterproof roll material layer 2, and the second waterproof roll material layer is a tough PVC waterproof roll material layer 3; the acrylic waterproof coating layer 1, the flexible PVC waterproof roll layer 2, and the tough PVC waterproof roll layer 3 were the same as those described in example 1.

The geotextile layer 4 is arranged below the tough PVC waterproof coiled material layer 3 and used as a fiber backing layer of the high-polymer waterproof coiled material, so that the tensile strength and the tensile force of the coiled material are further improved, the size change rate after heat treatment is reduced, and the geotextile layer can be well prevented from being broken by bulges such as stones, steel bar heads and the like during construction. In this embodiment, there is still a reason with geotechnological cloth layer 4 as polymer waterproofing membrane's bottom and base level basis, and geotechnological cloth layer 4's cost is lower than tough type PVC waterproofing membrane, can take the tough type PVC waterproofing membrane of thinner thickness, and one deck geotechnological cloth layer 4 adds, not only can effectively remove the overall cost of low coiled material, also can further promote to the tensile strength of coiled material.

The density of the geotechnical cloth layer 4 is 120 g/square meter, the thickness is 0.80mm, and the geotechnical cloth layer 4 is made of non-woven long-fiber polyester geotechnical cloth.

The flexible PVC waterproof roll layer 2, the tough PVC waterproof roll layer 3 and the geotextile layer 4 are bonded together in a calendering mode, the acrylic waterproof coating layer 1 is coated on the upper surface of the flexible PVC waterproof roll layer 2, and the high-molecular waterproof roll is obtained after drying.

Example 3

As shown in fig. 3, a waterproof polymer roll is obtained by adding a first overlapping edge 5 and a second overlapping edge 6 to the waterproof polymer roll of example 2.

For the polymer waterproofing membrane of embodiment 2, first overlap edge 5 and second overlap edge 6 have been add on waterproofing membrane to this embodiment 3, and the overlap joint is more convenient quick, and is also better to the water-proof effects of overlap joint.

The first overlapping edge 5 is arranged on the leftmost side of the upper surface of the acrylic waterproof coating layer 1, and the second overlapping edge 6 is arranged on the rightmost side of the geotextile; the geotechnical cloth layer 4 is an incomplete breadth covering cloth, namely the geotechnical cloth layer 4 does not completely cover the lower surface of the tough type PVC waterproof coiled material, so that a strip is exposed on the right side of the tough type PVC waterproof coiled material, a second overlapping edge 6 is formed, and the geotechnical cloth layer 4 and the tough type PVC waterproof coiled material form a strip-shaped square groove; the first overlapping edge 5 and the second overlapping edge 6 are arranged on opposite corners of the high polymer waterproof roll.

In the coiled material work progress, the first overlap edge 5 of preceding coiled material corresponds from top to bottom with the second overlap edge 6 of the coiled material of back, carries out the overlap joint through the welding, need not to adopt adhesive or other supplementary material, can be in the same place adjacent coiled material overlap joint well, can not produce the gap, avoids leaking.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not limitations to the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. The utility model provides a polymer waterproofing membrane, includes protective layer, first waterproof coiled material layer, the waterproof coiled material layer of second that from top to bottom arranges in proper order, its characterized in that, the protective layer is the acrylic acid rete, first waterproof coiled material layer is the waterproof coiled material layer of pliable and tough type PVC, the waterproof coiled material layer of second is the waterproof coiled material layer of tough and tensile type PVC.

2. The polymer waterproof roll according to claim 1, wherein the acrylic film layer is formed by spraying acrylic waterproof paint on the flexible PVC waterproof roll layer and drying.

3. The polymer waterproof roll according to claim 1, wherein the thickness of the flexible PVC waterproof roll is 0.40mm to 0.60 mm; the thickness of the tough PVC waterproof coiled material layer is 0.50mm-0.80 mm.

4. The waterproof roll of any one of claims 1 to 3, further comprising a geotextile layer disposed below the second waterproof roll layer.

5. The waterproof polymeric roll material according to claim 4, wherein said geotextile layer is made from a geotextile having a density of from 80 grams per square meter to 120 grams per square meter and a thickness of from 0.40mm to 0.80 mm.

6. The waterproof roll of claim 5, wherein the geotextile is a nonwoven short fiber or nonwoven long fiber polyester geotextile.

7. The waterproof polymeric roll as claimed in claim 4, wherein a first overlapping edge is reserved on one side of the acrylic membrane layer, and a second overlapping edge is reserved on the other side of the geotextile layer.

8. The waterproof roll of claim 7, wherein the width of the first overlapping edge and the second overlapping edge is 80-100 mm.

9. The waterproof roll of claim 7, wherein the first overlapping edge and the second overlapping edge of the adjacent roll are overlapped by heat welding.

10. The waterproof roll of claim 4, wherein the first waterproof roll layer, the second waterproof roll layer and the geotextile layer are bonded together by calendering.