CN212476612U

CN212476612U - PVC self-adhesive waterproof coiled material

Info

Publication number: CN212476612U
Application number: CN202020939234.3U
Authority: CN
Inventors: 李松; 谈小青; 蔡锡芝; 朱建萍
Original assignee: Jiangsu Lead Building Materials Co ltd
Current assignee: Jiangsu Lead Building Materials Co ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-02-05
Anticipated expiration: 2030-05-29

Abstract

The utility model provides a PVC self-adhesion waterproofing membrane, is used for exposing or the PVC waterproof layer of non-exposed occasion, coating including being located the upper strata the lower surface of PVC waterproof layer is arranged in preventing that plasticizer in the PVC waterproof layer from taking place to migrate backward infiltration PVDF fluorine carbon film, bonding PVDF fluorine carbon film's lower surface is used for the self-adhesive layer and the laminating that bonds with foreign object surface and is in the self-adhesive layer below is used for protecting the antiseized barrier film of self-adhesive layer, is equipped with the overlap edge along one side long limit of waterproofing membrane, PVDF fluorine carbon film, self-adhesive layer and antiseized barrier film one section overlap edge distance of indent toward middle direction. The scheme effectively isolates the chemical reaction of the PVC waterproof layer and the self-adhesive layer by adopting the PVDF fluorocarbon film, avoids the reduction of waterproof performance caused by premature aging of partial materials in the waterproof roll after long-time use, and the used self-adhesive layer is more favorable for environmental protection and safe production, so that the PVC self-adhesive waterproof roll can be suitable for various exposed or unexposed occasions such as roofs, basements, roof gardens and the like.

Description

PVC self-adhesive waterproof coiled material

Technical Field

The utility model relates to a waterproof building materials technical field, in particular to PVC self-adhesion waterproofing membrane suitable for expose and expose the occasion with non-.

Background

The waterproof roll is mainly used for building walls, roofs, tunnels, highways, refuse landfills and the like, can be curled into a roll-shaped flexible building material product which can resist external rainwater and underground water leakage, is used as a leakage-free connection between an engineering foundation and a building, is a first barrier for waterproofing of the whole engineering, plays a vital role in the whole engineering, and needs to be laid on a large scale by using the waterproof roll in the construction of waterproof layers of the building.

The existing PVC waterproof coiled material is prepared by adding components such as plasticizer and the like into PVC material to prepare a waterproof layer, an adhesive layer is arranged below the waterproof layer, the waterproof coiled material is mostly paved below cement or a heat-insulating layer for use, in the use process of the PVC waterproof coiled material, the plasticizer in the PVC material can migrate to react with the adhesive layer below, thereby reducing the waterproof function, degumming the adhesive layer, leading the migration of the plasticizer to be hooked with the environmental factors of the use occasion, simultaneously, as the scenes needing the waterproof coiled materials are very many, manufacturers under different scenes need to develop different types of waterproof coiled materials, such as waterproof coiled materials suitable for being used outdoors and roofs and moisture and leakage preventing coiled materials suitable for being used in a damp environment of basements, in the process of implementing the present invention, the inventor finds that there are at least the following problems in the prior art: 1. the existing PVC self-adhesive waterproof coiled material has poor applicability, and different modes are required to be adopted for treatment aiming at the migration reaction of a plasticizer, for example, polyester fiber non-woven fabric is adopted as the isolation of a PVC material waterproof layer and an adhesive layer, but the polyester fiber non-woven fabric can be naturally decomposed or aged in a specific environment along with time, the time is different from one year to five years, and the time is shorter in some extreme special environments, so that the service life of the waterproof coiled material is shortened; 2. various waterproof rolls are required to be developed according to the use scenes of different environments, the research and development investment is large, and the subsequent preparation is complicated.

Therefore, how to solve the above-mentioned existing waterproofing membrane exist because of the ageing whole life that reduces fast of partial material, for adapting to the big scheduling problem of multi-scene application research and development input, just become the utility model discloses the problem that the research and solution was solved.

Disclosure of Invention

The utility model provides a PVC self-adhesion waterproofing membrane, its purpose be solved that current waterproofing membrane exists because of the ageing whole life that reduces soon of partial material, for adapting to the big scheduling problem of multi-scene application research and development input.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a PVC self-adhesion waterproofing membrane, includes PVC waterproof layer, PVDF fluorine carbon film, self-adhesive layer and antiseized barrier film, wherein:

the PVC waterproof layer is positioned on the upper layer and is used for playing a waterproof role in exposed or unexposed occasions;

the PVDF fluorocarbon film is coated on the lower surface of the PVC waterproof layer and is used for preventing the plasticizer in the PVC waterproof layer from permeating downwards after migrating;

the self-adhesive layer is adhered to the lower surface of the PVDF fluorocarbon film and is used for adhering to the surface of a foreign object, and the self-adhesive layer is made of butyl rubber or hot-melt pressure-sensitive adhesive;

the anti-sticking isolating film is attached to the lower surface of the self-adhesive layer and used for protecting the self-adhesive layer;

a lapping edge which is used for overlapping and lapping with an adjacent waterproof coiled material is arranged along the long edge of one side of the waterproof coiled material, and the PVDF fluorocarbon film, the self-adhesive layer and the anti-sticking isolating film at the lapping edge are retracted to a certain lapping distance in the middle direction when the cross section of the short edge of the waterproof coiled material is seen from the reference of the PVC waterproof layer;

in a use state, the lapping edge of one of the two adjacent waterproof rolls is lapped on the upper surface of the PVC waterproof layer of the second waterproof roll.

Further, in order to improve the performance of the PVC waterproof layer, the PVC waterproof layer is a composite waterproof layer.

Furthermore, in order to enhance the dimensional stability and the tensile strength of the PVC waterproof layer, the composite waterproof layer comprises a first waterproof layer, a reinforcing layer and a second waterproof layer which are sequentially arranged from top to bottom, the first waterproof layer and the second waterproof layer are made of high-molecular soft materials, and the reinforcing layer is a polyester fiber mesh fabric woven in a vertical and horizontal mode.

Furthermore, in order to increase the tensile capability of the PVC waterproof layer, the composite waterproof layer comprises a first waterproof layer, a tensile layer and a second waterproof layer which are sequentially arranged from top to bottom, and the tensile layer is made of glass fiber non-woven fabrics.

Furthermore, the thickness of the PVDF fluorocarbon film is 0.3-0.5 mm; the lap distance is 80-120 mm.

The relevant content in the above technical solution is explained as follows:

1. in the above scheme, because the waterproof roll is usually of a long-width structure, the breadth width direction of the waterproof roll is set as a short side, the breadth length direction of the waterproof roll is set as a long side, and the edge parts in the long side direction of the waterproof roll are overlapped during laying;

2. in the above-described schemes, the terms "length", "width", "upper", "lower", "middle", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application.

Because of the application of above-mentioned scheme, compared with the prior art, the utility model have following advantage and effect:

1. the chemical reaction of PVC waterproof layer and self-adhesive layer is effectively isolated by adopting the PVDF fluorocarbon film in the above scheme of the utility model, the PVDF fluorocarbon film has good hydrophobicity and chemical corrosion resistance, and can prevent the plasticizer of the PVC waterproof layer from reacting with the self-adhesive layer after migrating, thereby affecting the performance of the self-adhesive layer and avoiding causing degumming to separate the self-adhesive layer; meanwhile, the PVDF fluorocarbon film also has excellent adhesiveness, weather resistance, ageing resistance and excellent waterproof sealing performance, and the PVDF fluorocarbon film has the waterproof durable life of up to 20 years, so that the waterproof performance reduction caused by premature ageing of the waterproof coiled material after long-time use is avoided;

2. the PVC waterproof layer in the scheme of the utility model has the insulation and waterproof functions, and the adopted PVC high polymer soft material has stable performance and high durability, and provides good waterproof performance as an important part of the waterproof roll; the self-adhesive layer can not be in direct contact with a PVC waterproof layer under the isolation of the PVDF fluorocarbon film, so that the self-adhesive layer cannot be degummed, the self-adhesive layer made of the butyl rubber or the hot-melt pressure-sensitive adhesive utilizes the common characteristics of the two materials, namely, the self-adhesive layer has good heat resistance, convenient operability and excellent weather resistance, and the two materials are more beneficial to environmental protection and safe production compared with adhesives such as asphalt.

3. In the above scheme of the utility model, before the laying of the coiled material, the anti-sticking isolating film is uncovered, the self-adhesive layer can be welded by hot air when laying, the laying is rapid and convenient, the sealing edge and the overlap edge are arranged at the long edge of the same side of the waterproof coiled material, and the sealing waterproof continuity between two waterproof coiled materials which are adjacently laid and have the overlapped part after the construction is finished is ensured;

4. the PVC self-adhesive waterproof roll can be suitable for exposed or unexposed occasions such as roofs, basements, roof gardens and the like, and has good dimensional stability and good waterproof performance at sunlight exposure places, shade places, dry places, wet places, airtight and unvented places or outdoor wind blowing places.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of FIG. 1;

FIG. 3 is a schematic short-side cross-sectional view of an embodiment of the present invention;

FIG. 4 is a schematic diagram of a second short-side cross-section of the embodiment of the present invention;

FIG. 5 is a third schematic short-side cross-sectional view of an embodiment of the present invention;

fig. 6 is the utility model discloses when the embodiment uses the overlap joint sketch map of two adjacent waterproofing membrane.

In the above drawings:

1. a PVC waterproof layer; 11. a first waterproof layer; 121. an enhancement layer; 122. a tensile layer; 13. a second waterproof layer; 2. A PVDF fluorocarbon film; 3. a self-adhesive layer; 4. an anti-sticking barrier film; 5. and (7) overlapping edges.

Detailed Description

Example (b): the present invention is further described with reference to the accompanying drawings and embodiments, and any person skilled in the art can change or modify the technology taught in the present application without departing from the spirit and scope of the present application after understanding the embodiments of the present application.

Referring to fig. 1 to 3, the embodiment of the utility model provides a PVC self-adhesion waterproofing membrane, this waterproofing membrane possesses: the PVC waterproof layer 1 is positioned on the upper layer and used for playing a waterproof role in exposed or unexposed occasions; the PVDF fluorocarbon film 2 is coated on the lower surface of the PVC waterproof layer 1 and used for preventing plasticizers in the PVC waterproof layer 1 from permeating downwards after migrating, and the thickness of the PVDF fluorocarbon film 2 is 0.3-0.5 mm; the self-adhesive layer 3 is bonded to the lower surface of the PVDF fluorocarbon film 2 and is used for being bonded to the surface of a foreign object, and the self-adhesive layer 3 is made of butyl rubber or hot-melt pressure-sensitive adhesive; antiseized barrier film 4, antiseized barrier film 4 laminating is in the lower surface of self-adhesive layer 3 is used for protecting self-adhesive layer 3.

The embodiment of the utility model provides an in, follow one side long limit of waterproofing membrane is equipped with and is used for overlapping lapped overlap edge 5 with adjacent waterproofing membrane, with PVC waterproof layer 1 is the benchmark, follows waterproofing membrane's minor face cross section is seen 5 department of overlap edge the PVDF fluorine carbon film 2, self-adhesive layer 3 and antiseized barrier film 4 toward one section overlap edge distance of middle direction indentation, the size of this overlap edge distance is 80~120mm, the english abbreviation of mm for length unit "millimeter".

The embodiment of the utility model provides a waterproofing membrane when using, it can to open antiseized barrier film 4 and make self-adhesive layer 3 expose before the coiled material is laid, and self-adhesive layer 3 is welded with hot-blast when laying, when carrying out the overlap joint to two adjacent waterproofing membrane, one of them waterproofing membrane's 5 overlap joints of overlap edge are second waterproofing membrane's PVC waterproof layer 1's upper surface to weld 5 departments of overlap edge, the overlap joint schematic diagram refers to figure 6, makes two adjacent waterproofing membrane's 5 departments of overlap edge inseparabler, improves construction quality, improves the waterproof performance of product.

With respect to the above embodiments, the changes that may be made by the present invention are described as follows:

1. in the above embodiments, the thickness of the PVDF fluorocarbon film 2 is 0.3-0.5 mm, and the thickness of the PVDF fluorocarbon film 2 may be 0.3mm, 0.35mm, 0.4mm, or 0.5mm, which is not limited by the present invention;

2. in the above embodiments, the overlap distance is 80-120 mm, and the overlap distance may be 80mm, 90mm, 100mm, 110mm or 120mm, which is not limited by the present invention;

3. in the above embodiments, the waterproof layer 1 may be a composite waterproof layer, and generally, the composite waterproof layer may improve its performance. In order to enhance the dimensional stability and tensile strength of the PVC waterproof layer 1, the composite waterproof layer includes a first waterproof layer 11, a reinforcing layer 121 and a second waterproof layer 13, which are sequentially arranged from top to bottom, the first waterproof layer 11 and the second waterproof layer 13 are both made of high molecular soft materials, the reinforcing layer 121 is a polyester fiber mesh fabric woven in a crisscross manner, and a schematic short-side cross-sectional view of the composite waterproof layer refers to fig. 4; in order to increase the stretching capacity of the PVC waterproof layer 1, the composite waterproof layer comprises a first waterproof layer 11, a stretching layer 122 and a second waterproof layer 13 which are sequentially arranged from top to bottom, the stretching layer 122 is a non-woven glass fiber non-woven fabric, the stretching layer 122 is used for increasing the stretching rate of the composite waterproof layer, and the schematic short side cross-section herein refers to fig. 5.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a PVC self-adhesion waterproofing membrane which characterized in that: this waterproofing membrane includes PVC waterproof layer (1), PVDF fluorine carbon film (2), self-adhesive layer (3) and antiseized barrier film (4), wherein:

the PVC waterproof layer (1) is positioned on the upper layer and is used for playing a waterproof role in exposed or unexposed occasions;

the PVDF fluorocarbon film (2) is coated on the lower surface of the PVC waterproof layer (1) and is used for preventing the plasticizer in the PVC waterproof layer (1) from permeating downwards after migrating;

the self-adhesive layer (3) is adhered to the lower surface of the PVDF fluorocarbon film (2) and is used for adhering to the surface of a foreign object, and the self-adhesive layer (3) is made of butyl rubber or hot-melt pressure-sensitive adhesive;

the anti-sticking isolating film (4) is attached to the lower surface of the self-adhesive layer (3) and used for protecting the self-adhesive layer (3);

a lapping edge (5) which is used for overlapping and lapping with an adjacent waterproof coiled material is arranged along the long edge of one side of the waterproof coiled material, and the PVDF fluorocarbon film (2), the self-adhesive layer (3) and the anti-sticking isolating film (4) at the lapping edge (5) are retracted to the middle direction for a certain lapping distance when the cross section of the short edge of the waterproof coiled material is seen from the PVC waterproof layer (1);

in a use state, the overlapping edge (5) of one of two adjacent waterproof rolls is overlapped on the upper surface of the PVC waterproof layer (1) of the second waterproof roll.

2. The waterproofing roll according to claim 1, wherein: the PVC waterproof layer (1) is a composite waterproof layer.

3. A waterproofing roll according to claim 2, wherein: the composite waterproof layer comprises a first waterproof layer (11), an enhancement layer (121) and a second waterproof layer (13) which are sequentially arranged from top to bottom, the first waterproof layer (11) and the second waterproof layer (13) are made of high-molecular soft materials, and the enhancement layer (121) is a polyester fiber mesh fabric woven vertically and horizontally.

4. A waterproofing roll according to claim 2, wherein: the composite waterproof layer comprises a first waterproof layer (11), a stretching layer (122) and a second waterproof layer (13) which are sequentially arranged from top to bottom, wherein the stretching layer (122) is made of glass fiber non-woven fabric.

5. A sheet for waterproofing according to any one of claims 1 to 4, wherein: the thickness of the PVDF fluorocarbon film (2) is 0.3-0.5 mm.

6. A sheet of waterproofing according to claim 5, wherein: the lap distance at the lap edge (5) is 80-120 mm.