CN210478026U - Pre-paved waterproof coiled material - Google Patents
Pre-paved waterproof coiled material Download PDFInfo
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- CN210478026U CN210478026U CN201921237388.1U CN201921237388U CN210478026U CN 210478026 U CN210478026 U CN 210478026U CN 201921237388 U CN201921237388 U CN 201921237388U CN 210478026 U CN210478026 U CN 210478026U
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Abstract
The utility model discloses a pre-paved waterproof coiled material, which comprises a substrate layer, a pressure-sensitive adhesive layer formed on the substrate layer and an anti-sticking layer arranged on the pressure-sensitive adhesive layer, wherein the anti-sticking layer comprises an alumina particle layer arranged on the pressure-sensitive adhesive layer and an acrylic acid coating layer formed on the alumina particle layer, and alumina particles in the alumina particle layer are respectively embedded into the pressure-sensitive adhesive layer and the acrylic acid coating layer; the utility model discloses a pre-paved waterproofing membrane not only can strengthen and post-cast concrete's peel strength, does not fall sand moreover, and the easy overlap joint of minor face has avoided scurrying the risk of water.
Description
Technical Field
The utility model belongs to the waterproof field of building engineering, concretely relates to spread waterproofing membrane in advance.
Background
The pre-laid web typically includes a body sheet, an adhesive layer, and a release layer. The material has low requirement on the base surface during construction, can be widely suitable for the wide environment with complex and changeable climate of Chinese amplitude personnel, and is convenient and quick to construct. Therefore, since the appearance of pre-paved waterproof materials, the development of the materials is faster and faster, and the varieties of the materials are more and more, such as asphalt-based pre-paved materials and high-molecular pre-paved coiled materials; the application is more and more extensive, and the method is widely used in the engineering fields of basements, underground pipe galleries, subways, tunnels and the like; meanwhile, the dosage is getting larger and larger, and the annual dosage reaches hundreds of millions of square meters at present.
However, in the existing pre-paved waterproof roll, the anti-sticking layer mostly adopts mineral particles, such as natural mullite sand or hydrated cement (mainly white cement, also including partial aluminate cement, ferric aluminate cement, etc.), for example, patent CN012725139B, CN106183268B, CN106183268A, etc., wherein the natural mullite sand has inferior capability of preventing ultraviolet ray aging in sunlight in the construction application process compared with the hydrated white cement, but the hydrated white cement has strong basicity and PH ≥ 13, especially when encountering small-rain-alkali water in the construction application process, the glue layer is easy to be separated from the main waterproof sheet, because the pressure sensitive adhesive is often added with polar groups such as carboxyl, anhydride, etc. in modified resin such as rosin, etc., and the base reacts with the carboxyl or anhydride groups, thereby affecting the bonding with the main waterproof sheet. In addition, workers may burn their hands due to inadequate protection when exposed to light rain or when constructed in wet weather because of the strong alkalinity of the hydrated white cement. Therefore, the hydrated white cement has some advantages over the molley sand in performance, but the hydrated white cement has strong alkalinity, so that the pressure-sensitive adhesive is limited in raw material selection, is easy to cause industrial accidents during application and construction in a construction site, and is easy to open due to the fact that the lap joint edge is soaked by the alkaline water during construction in rainy days or wet weather.
Meanwhile, based on the consideration of cost, the particle size of the conventional polymer pre-paved coiled material, such as mullite sand or hydrated white cement sand, is mostly between 30 meshes and 80 meshes, if the particle size is thinner, the large cost is required for sanding, so that the depth of the embedded adhesive is limited, the embedded adhesive is easy to fall off during storage, transportation and use, and the overlapping edges of long sides or short sides are polluted; in the short edge lap joint, the existing pre-paved product can only be lapped by shoveling sand and then pasting a double-sided adhesive tape, or butt joint is carried out by a wet-paved adhesive tape, but butt joint seams exist in butt joint, a water channeling channel is easy to form, and potential safety hazards of water channeling are left.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome not enough among the prior art, provide a modified pre-paved waterproofing membrane, its peel strength with post-cast concrete not only can strengthen, does not fall sand moreover, and the easy overlap joint of minor face has avoided scurrying the risk of water.
For solving the above technical problem, the utility model discloses the technical scheme who takes as follows:
the utility model provides a spread waterproofing membrane in advance, includes the substrate layer, forms pressure sensitive adhesive layer on the substrate layer and sets up antiseized layer on the pressure sensitive adhesive layer, antiseized layer is including setting up alumina particle layer on the pressure sensitive adhesive layer and forming acrylic acid coating on the alumina particle layer, alumina particle in the alumina particle layer imbeds respectively the pressure sensitive adhesive layer in the acrylic acid coating.
According to the present invention, the alumina particles have an average particle size of 80 to 120 mesh, and are commercially available.
According to some preferred and specific aspects of the present invention, the portion of the aluminum oxide particles embedded in the pressure sensitive adhesive layer is more than the portion of the aluminum oxide particles embedded in the acrylic coating layer. According to the present invention, the alumina particle layer is realized by conventionally providing a particle layer (e.g., an artificial mineral particle layer) in the prior art, specifically by coating alumina particles on the pressure-sensitive adhesive layer, pressing, and removing the floating alumina particles. The aluminum oxide particles can be spread and compacted by pressing, and meanwhile, the particle size of the aluminum oxide particles is 80-120 meshes, so that the particle size of the aluminum oxide particles is smaller than that of hydrated white cement and the like in the prior art, therefore, most of the aluminum oxide particles are embedded into the pressure-sensitive adhesive layer in the pressing process, the sand falling phenomenon is avoided, and the anti-sticking effect is achieved.
According to some preferred aspects of the present invention, the alumina particles are used in an amount of 0.1 to 0.15kg per square meter of the alumina particles in the alumina particle layer.
According to some preferred and specific aspects of the present invention, the acrylic coating has a thickness of 0.05-0.05 mm.
According to some particular aspects of the invention, the material of the substrate layer is high density polyethylene, low density polyethylene, linear low density polyethylene or thermoplastic polyolefin.
According to some preferred and specific aspects of the present invention, the thickness of the substrate layer is 0.9-1.2 mm.
According to some preferred and specific aspects of the present invention, the amount of the pressure-sensitive adhesive used per square meter of the pressure-sensitive adhesive layer is 0.25 to 0.35 kg. The pressure-sensitive adhesive can be a high-molecular adhesive conventionally used in the prior art, and can be obtained commercially or prepared by self-preparation by adopting a formula in the prior art.
According to some preferred and specific aspects of the present invention, the thickness of the pressure sensitive adhesive layer is 0.25-0.4 mm.
According to the utility model discloses, the quality of the every square meter of pre-paved waterproofing membrane is 1.2-1.4 kg.
According to some specific aspects of the utility model, pre-spread waterproofing membrane is still including setting up long limit overlap joint limit on the substrate layer, the partial cover of substrate layer is equipped with pressure-sensitive adhesive layer, the remainder of substrate layer forms long limit overlap joint limit, long limit overlap joint edge does not exist pressure-sensitive adhesive layer, aluminium oxide particle layer and acrylic acid coating.
Due to the adoption of the technical scheme, compared with the prior art, the utility model have the following advantage:
the utility model discloses a pre-paved waterproofing membrane innovatively adopts aluminium oxide particle layer and acrylic acid coating to combine as antiseized layer, has not only realized pre-paved waterproofing membrane and the high peel strength of post-cast concrete, can avoid falling the sand phenomenon, moreover need not shovel sand in the minor face overlap joint process, only need paste one double-sided tape transition at the overlap joint, just can realize better overlap joint, do not have and scurry the potential water hazard; simultaneously the utility model discloses a pre-paved waterproofing membrane is lighter for the coiled material among the prior art, can subtract and heavily reach about 20%, still has stronger anti ultraviolet effect, moreover the utility model discloses an aluminum oxide particle layer is neutral, does not have the alkaline burn problem to constructor and so on to make the pre-paved waterproofing membrane of the invention construct more conveniently, swiftly reliable.
Drawings
Fig. 1 is a schematic structural view of the pre-paved waterproof roll of the utility model;
wherein, 1, a base material layer; 11. long side overlapping; 2. a pressure sensitive adhesive layer; 3. a layer of alumina particles; 4. and (3) acrylic coating.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and preferred embodiments of the invention.
As shown in fig. 1, the present example provides a pre-laid waterproof roll, which includes a substrate layer 1, a pressure-sensitive adhesive layer 2 formed on the substrate layer 1, and a release layer disposed on the pressure-sensitive adhesive layer 2, wherein the release layer includes an alumina particle layer 3 disposed on the pressure-sensitive adhesive layer 2 and an acrylic coating layer 4 formed on the alumina particle layer 3, and the alumina particles in the alumina particle layer 3 are respectively embedded in the pressure-sensitive adhesive layer 2 and the acrylic coating layer 4. Among them, the alumina particles have an average particle diameter of 80 to 120 mesh, and are commercially available.
In this case, the portions of the alumina particles embedded in the pressure-sensitive adhesive layer 2 are greater than the portions of the alumina particles embedded in the acrylic coating 4. Specifically, the alumina particle layer is realized by conventionally disposing a particle layer (e.g., an artificial mineral particle layer) in the prior art, specifically by coating alumina particles on the pressure-sensitive adhesive layer 2, then pressing, and removing the floating alumina particles. The aluminum oxide particles can be spread and compacted by pressing, and meanwhile, the particle size of the aluminum oxide particles is 80-120 meshes, so that the particle size of the aluminum oxide particles is smaller than that of hydrated white cement and the like in the prior art, therefore, most of the aluminum oxide particles are embedded into the pressure-sensitive adhesive layer 2 in the pressing process, the sand falling phenomenon is avoided, and the anti-sticking effect is achieved.
In this example, the alumina particles in the alumina particle layer 3 were used in an amount of 0.1kg per square meter.
In this example, the acrylic coating 4 has a thickness of 0.05 to 0.05 mm. Specifically, in this example, commercially available badefu RS-2806 is mixed with water at a ratio of 1: 1, and then sprayed on the surface of the alumina particle layer 3 according to a conventional method, and dried to form the acrylic coating 4, wherein the wet film thickness is controlled to be about 25 filaments, and the dry film thickness is controlled to be about 6 filaments.
In this example, the material of the substrate layer 1 is high density polyethylene (HDPE, 8010 made of thermoplastic), the high density polyethylene is kneaded by a kneading technique in the related art to form the substrate layer 1, and the thickness of the substrate layer 1 is controlled to be 0.9 mm.
In this example, the pressure-sensitive adhesive layer 2 was used in an amount of 0.30kg per square meter. The present example can use the conventional formula in the prior art: 28 parts of polystyrene-polyisoprene-polystyrene block copolymer (Keteng 1163), 30 parts of hydrogenated carbon five resin (Lanzhou petrochemical), 8 parts of terpene resin 1105 (American Keteng), 30 parts of polyisobutylene (Korean Dalin 950), 3 parts of stone titanium pigment, 10 parts of naphthenic oil (Clarity 4010), 10100.5 parts of antioxidant and 0.5 part of ultraviolet absorbent (double bond chemical 770); and the preparation method adopts the conventional method: the raw materials of the formula are extruded by a screw extruder and coated on a substrate layer 1 to form a pressure-sensitive adhesive layer 2, and the thickness is controlled to be 0.3 mm.
In this example, the pre-paved waterproof roll further comprises a long-side overlapping edge 11 arranged on the substrate layer 1, the pressure-sensitive adhesive layer 2 is coated on a part of the substrate layer 1, the remaining part of the substrate layer 1 forms the long-side overlapping edge 11, and the pressure-sensitive adhesive layer 2, the alumina particle layer 3 and the acrylic coating 4 do not exist on the long-side overlapping edge 11.
The mass of the roll of pre-applied waterproofing prepared as described above was 1.32kg per square meter, and the properties in each respect were measured as shown in table 1 and compared with the data of a comparative example (basically the same as this example except that the release layer in this example was replaced with a hydrated white cement release layer in the prior art).
TABLE 1
To sum up, the pre-paved waterproof coiled material of the utility model innovatively adopts the alumina particle layer 3 and the acrylic acid coating layer 4 to be combined as the anti-sticking layer, thereby not only realizing the high peeling strength of the pre-paved waterproof coiled material and post-poured concrete and avoiding the sand falling phenomenon, but also needing no sand shoveling in the short edge lapping process, only pasting a double-sided adhesive tape at the lapping position for transition, realizing better lapping without water channeling hidden trouble; simultaneously the utility model discloses a pre-paved waterproofing membrane is lighter for the coiled material among the prior art, can subtract and heavily reach about 20%, still has stronger anti ultraviolet effect, moreover the utility model discloses an alumina particle layer 3 is neutral, does not have the basicity burn problem to constructor and so on to make the pre-paved waterproofing membrane of the invention construct more conveniently, swiftly reliable.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. The utility model provides a spread waterproofing membrane in advance, includes the substrate layer, forms pressure sensitive adhesive layer on the substrate layer and sets up antiseized layer on the pressure sensitive adhesive layer, its characterized in that, antiseized layer is including setting up alumina particle layer on the pressure sensitive adhesive layer and forming are in acrylic acid coating on the alumina particle layer, alumina particle in the alumina particle layer imbeds respectively the pressure sensitive adhesive layer in the acrylic acid coating.
2. The roll of pre-laid waterproofing membrane according to claim 1, wherein the alumina particles are embedded in the pressure sensitive adhesive layer more than the alumina particles are embedded in the acrylic coating layer.
3. The roll of pre-paved waterproofing membrane according to claim 1 or 2, wherein the alumina particles have an average particle diameter of 80 to 120 mesh.
4. The roll of pre-paved waterproofing membrane according to claim 1, wherein the amount of alumina particles in the alumina particle layer is 0.1 to 0.15kg per square meter.
5. Roll pre-applied waterproofing according to claim 1, wherein the acrylic coating has a thickness of 0.05-0.05 mm.
6. A roll of pre-laid waterproofing membrane according to claim 1, wherein the material of the substrate layer is high density polyethylene, low density polyethylene, linear low density polyethylene or thermoplastic polyolefin.
7. A roll of pre-laid waterproofing membrane according to claim 1, wherein the thickness of the substrate layer is 0.9 to 1.2 mm.
8. The roll of pre-applied waterproofing membrane according to claim 1 wherein the amount of pressure-sensitive adhesive used per square meter in the pressure-sensitive adhesive layer is 0.25 to 0.35 kg; and/or the thickness of the pressure-sensitive adhesive layer is 0.25-0.4 mm.
9. A roll of pre-laid waterproofing membrane according to claim 1, wherein the mass of the roll of pre-laid waterproofing membrane per square meter is 1.2 to 1.4 kg.
10. The pre-laid waterproof roll as claimed in claim 1, further comprising a long-side joint edge provided on the substrate layer, wherein part of the substrate layer is coated with the pressure-sensitive adhesive layer, the remaining part of the substrate layer forms the long-side joint edge, and the pressure-sensitive adhesive layer, the alumina particle layer and the acrylic coating layer are not present on the long-side joint edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921237388.1U CN210478026U (en) | 2019-08-01 | 2019-08-01 | Pre-paved waterproof coiled material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921237388.1U CN210478026U (en) | 2019-08-01 | 2019-08-01 | Pre-paved waterproof coiled material |
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| CN210478026U true CN210478026U (en) | 2020-05-08 |
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| CN201921237388.1U Active CN210478026U (en) | 2019-08-01 | 2019-08-01 | Pre-paved waterproof coiled material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110435273A (en) * | 2019-08-01 | 2019-11-12 | 江苏凯伦建材股份有限公司 | One kind overlaying waterproof roll and preparation method thereof |
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2019
- 2019-08-01 CN CN201921237388.1U patent/CN210478026U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110435273A (en) * | 2019-08-01 | 2019-11-12 | 江苏凯伦建材股份有限公司 | One kind overlaying waterproof roll and preparation method thereof |
| CN110435273B (en) * | 2019-08-01 | 2024-06-18 | 江苏凯伦建材股份有限公司 | Pre-laid waterproof coiled material and preparation method thereof |
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