CN214612276U

CN214612276U - Polyvinyl chloride asphalt self-adhesive waterproof coiled material

Info

Publication number: CN214612276U
Application number: CN202120187810.8U
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: 2021-01-22
Filing date: 2021-01-22
Publication date: 2021-11-05
Anticipated expiration: 2031-01-22

Abstract

The utility model provides a polyvinyl chloride pitch self-adhesion waterproofing membrane which characterized in that: the self-adhesive asphalt film is composed of a polyvinyl chloride sheet layer, a fluorocarbon film layer, a self-adhesive asphalt layer and an anti-adhesive isolation film layer from top to bottom in sequence when viewed from the cross section; the polyvinyl chloride sheet layer is a polyvinyl chloride layer; the fluorocarbon film layer is a fluorocarbon paint layer; the self-adhesive asphalt layer is an asphalt layer; polyvinyl chloride sheet layer set up in waterproofing membrane's top, the laminating of fluorine carbon film layer is in the bottom on polyvinyl chloride sheet layer, the self-adhesion pitch layer closely laminates in the bottom on fluorine carbon film layer, antiseized barrier film layer closely laminates in the bottom on self-adhesion pitch layer.

Description

Polyvinyl chloride asphalt self-adhesive waterproof coiled material

Technical Field

The utility model relates to a waterproof building materials field, in particular to polyvinyl chloride pitch self-adhesion waterproofing membrane.

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 for resisting external rainwater and underground water leakage, 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.

The existing polyvinyl chloride waterproof coiled material is commonly used as a self-adhesive layer by hot-melt pressure-sensitive adhesive, butyl rubber, asphalt mastic and the like, and the asphalt mastic becomes the most popular self-adhesive layer material due to low price. However, the polyvinyl chloride layer contains the plasticizer, the self-adhesive layer is not suitable for being directly compounded with the polyvinyl chloride layer, degumming is easily caused when the plasticizer is migrated, and on the other hand, the coiled material and the coiled material are overlapped by hot air welding, and the peeling strength cannot reach the standard.

Disclosure of Invention

The utility model provides a polyvinyl chloride pitch self-adhesion waterproofing membrane, its purpose is to solve the problem that current polyvinyl chloride waterproofing membrane peel strength is not enough.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a polyvinyl chloride pitch self-adhesion waterproofing membrane which characterized in that: the waterproof roll is formed by compounding a polyvinyl chloride sheet layer, a fluorocarbon film layer, a self-adhesive asphalt layer and an anti-sticking isolation film layer from top to bottom in sequence from the cross section of the waterproof roll;

the polyvinyl chloride sheet layer is a sheet layer made of polyvinyl chloride; the fluorocarbon film layer is a layer formed by fluorocarbon paint; the self-adhesive asphalt layer is a layer formed by asphalt;

in the width direction of the waterproof roll, a distance where one side of the waterproof roll retracts inwards is a first critical surface, the polyvinyl chloride sheet layer extends outwards to form a first upper overlapping edge by taking the first critical surface as a reference, the three layers of the fluorocarbon film layer, the self-adhesive asphalt layer and the anti-sticking isolation film layer extend outwards to form a first lower overlapping edge, the three layers of the fluorocarbon film layer, the self-adhesive asphalt layer and the anti-sticking isolation film layer of the first lower overlapping edge are flush, and a gap is reserved between the first upper overlapping edge and the first lower overlapping edge;

the waterproof roll is characterized in that the position, in the width direction, of the other side of the waterproof roll, which is retracted inwards, is a second critical surface, the second critical surface is taken as a reference, the polyvinyl chloride sheet layer extends outwards to form a second upper overlapping edge, the three layers of the fluorocarbon film layer, the self-adhesive asphalt layer and the anti-sticking isolation film layer extend outwards to form a second lower overlapping edge, the three layers of the fluorocarbon film layer, the self-adhesive asphalt layer and the anti-sticking isolation film layer of the second lower overlapping edge are flush, and a gap is formed between the second upper overlapping edge and the second lower overlapping edge;

the first upper overlapping edge and the second lower overlapping edge are equal in width; the first lower overlapping edge and the second upper overlapping edge have the same width.

Preferably, the widths of the first upper overlapping edge, the first lower overlapping edge, the second upper overlapping edge and the second lower overlapping edge are all 10 cm.

Preferably, an inner reinforcing layer is embedded in the polyvinyl chloride sheet layer, extends into the first upper overlapping edge and the second upper overlapping edge, and is glass fiber mesh cloth or polyester fiber mesh cloth.

The utility model discloses beneficial effect:

1. the utility model designs 4 overlapping edges, wherein, when laying, tearing off the anti-sticking isolation film layer, overlapping the first lower overlapping edge 5b self-adhesive asphalt layer of the second waterproof coiled material on the second lower overlapping edge 6b fluorocarbon film layer of the first waterproof coiled material, welding the first upper overlapping edge 5a polyvinyl chloride sheet layer of the second waterproof coiled material on the second upper overlapping edge 6a polyvinyl chloride sheet layer of the first waterproof coiled material; when the self-adhesive asphalt layer is laid, the upper layer and the lower layer of the self-adhesive asphalt layer can not directly contact with the polyvinyl chloride sheet layer, the joint is erected, and the upper layer and the lower layer of the self-adhesive asphalt layer are both fluorocarbon film layers.

2. The glass fiber net check cloth and the polyester fiber net check cloth of interior enhancement layer have strengthened waterproofing membrane's intensity and pliability, can absorb the ascending power of length and width direction simultaneously, are difficult for trampling and wipe the destruction, play the effect that reduces the difference in temperature simultaneously, effectively strengthen waterproofing membrane's stability.

3. The utility model discloses be equipped with antiseized barrier film layer on the faying surface, as long as peel off antiseized barrier film layer, self-adhesion pitch layer can directly bond convenient construction with fluorocarbon film layer.

4. The utility model discloses polyvinyl chloride coiled material peel strength problem not up to standard has effectively been solved.

Drawings

Figure 1 is the utility model discloses polyvinyl chloride pitch self-adhered waterproofing membrane cross-section view.

In the above drawings: 1. a polyvinyl chloride sheet layer; 11. an inner reinforcement layer; 2. a fluorocarbon film layer; 3, self-adhesive asphalt layer; 4. an anti-sticking barrier film layer; 5. a first critical plane; 5a, a first upper lap edge; 5b. a first lower lap edge; 6. an anti-sticking barrier film layer; a second upper lap edge; a second lower lap edge.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

example (b): polyvinyl chloride asphalt self-adhesive waterproof coiled material

As shown in fig. 1, the polyvinyl chloride asphalt self-adhesive waterproof roll is formed by compounding a polyvinyl chloride sheet layer 1, a fluorocarbon film layer 2, a self-adhesive asphalt layer 3 and an anti-sticking isolation film layer 4 from top to bottom in sequence when viewed from the cross section of the waterproof roll in a use state;

the polyvinyl chloride sheet layer 1 is a sheet layer made of polyvinyl chloride; the fluorocarbon film layer 2 refers to a layer formed by fluorocarbon paint; the self-adhesive asphalt layer 3 is a layer composed of asphalt;

in the width direction of the waterproof roll, a distance from one side of the waterproof roll retracting inwards is a first critical surface 5, the polyvinyl chloride sheet layer 1 extends outwards to form a first upper overlapping edge 5a by taking the first critical surface 5 as a reference, three layers of the fluorocarbon film layer 2, the self-adhesive asphalt layer 3 and the anti-sticking isolation film layer 4 extend outwards to form a first lower overlapping edge 5b, the three layers of the fluorocarbon film layer 2, the self-adhesive asphalt layer 3 and the anti-sticking isolation film layer 4 of the first lower overlapping edge 5b are flush, and a gap is reserved between the first upper overlapping edge 5a and the first lower overlapping edge 5 b;

the waterproof roll is characterized in that a second critical surface 6 is arranged at a distance where the other side of the waterproof roll retracts inwards in the width direction, the polyvinyl chloride sheet layer 1 extends outwards to form a second upper overlapping edge 6a by taking the second critical surface 6 as a reference, three layers of the fluorocarbon film layer 2, the self-adhesive asphalt layer 3 and the anti-sticking isolation film layer 4 extend outwards to form a second lower overlapping edge 6b, three layers of the fluorocarbon film layer 2, the self-adhesive asphalt layer 3 and the anti-sticking isolation film layer 4 of the second lower overlapping edge 6b are flush, and a gap is reserved between the second upper overlapping edge 6a and the second lower overlapping edge 6 b;

the first upper overlapping edge 5a and the second lower overlapping edge 6b have the same width; the first lower overlapping edge 5b and the second upper overlapping edge 6a have the same width.

The widths of the first upper overlapping edge 5a, the first lower overlapping edge 5b, the second upper overlapping edge 6a and the second lower overlapping edge 6b are all 10 cm.

An inner reinforcing layer 11 is embedded in the polyvinyl chloride sheet layer 1, the inner reinforcing layer 11 extends into the first upper overlapping edge 5a and the second upper overlapping edge 6a, and the inner reinforcing layer 11 is glass fiber mesh cloth or polyester fiber mesh cloth.

In practical operation, the gap between the first upper overlapping edge 5a and the first lower overlapping edge 5b can be realized by three ideas, namely, reducing the thickness of the bottom of the polyvinyl chloride sheet layer 1 of the first upper overlapping edge 5a to form a gap; reducing the thickness of the upper part of the fluorocarbon film layer 2 of the first lower overlapping edge 5b to form a gap; ③ simultaneously reducing the thickness of the bottom of the polyvinyl chloride sheet layer 1 of the first upper overlapping edge 5a and the thickness of the upper portion of the fluorocarbon film layer 2 of the first lower overlapping edge 5b, thereby forming a gap.

The formation of the gap between the second upper overlapping edge 6a and the second lower overlapping edge 6b is the same as in the above-described idea.

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 polyvinyl chloride pitch self-adhesion waterproofing membrane which characterized in that: the waterproof roll is formed by compounding a polyvinyl chloride sheet layer (1), a fluorocarbon film layer (2), a self-adhesive asphalt layer (3) and an anti-sticking isolation film layer (4) from top to bottom in sequence from the cross section of the waterproof roll;

the polyvinyl chloride sheet layer (1) is a sheet layer made of polyvinyl chloride; the fluorocarbon film layer (2) is a layer formed by fluorocarbon paint; the self-adhesive asphalt layer (3) is a layer formed by asphalt;

in the width direction of the waterproof roll, a distance from one side of the waterproof roll retracting inwards is a first critical surface (5), the first critical surface (5) is used as a reference, the polyvinyl chloride sheet layer (1) extends outwards to form a first upper overlapping edge (5 a), the three layers of the fluorocarbon film layer (2), the self-adhesive asphalt layer (3) and the anti-sticking isolation film layer (4) extend outwards to form a first lower overlapping edge (5 b), the three layers of the fluorocarbon film layer (2), the self-adhesive asphalt layer (3) and the anti-sticking isolation film layer (4) of the first lower overlapping edge (5 b) are flush, and a gap is reserved between the first upper overlapping edge (5 a) and the first lower overlapping edge (5 b);

the waterproof roll is characterized in that a second critical surface (6) is arranged at a distance with the other side retracted inwards in the width direction, the polyvinyl chloride sheet layer (1) extends outwards to form a second upper overlapping edge (6 a) by taking the second critical surface (6) as a reference, the three layers of the fluorocarbon film layer (2), the self-adhesive asphalt layer (3) and the anti-sticking isolation film layer (4) extend outwards to form a second lower overlapping edge (6 b), the three layers of the fluorocarbon film layer (2), the self-adhesive asphalt layer (3) and the anti-sticking isolation film layer (4) of the second lower overlapping edge (6 b) are flush, and a gap is reserved between the second upper overlapping edge (6 a) and the second lower overlapping edge (6 b);

the first upper overlapping edge (5 a) and the second lower overlapping edge (6 b) have the same width; the first lower overlapping edge (5 b) and the second upper overlapping edge (6 a) have the same width.

2. The polyvinyl chloride asphalt self-adhesive waterproof roll material according to claim 1, characterized in that: the widths of the first upper overlapping edge (5 a), the first lower overlapping edge (5 b), the second upper overlapping edge (6 a) and the second lower overlapping edge (6 b) are all 10 cm.

3. The polyvinyl chloride asphalt self-adhesive waterproof roll material according to claim 1, characterized in that: an inner reinforcement layer (11) is embedded in the polyvinyl chloride sheet layer (1), the inner reinforcement layer (11) extends into the first upper overlapping edge (5 a) and the second upper overlapping edge (6 a), and the inner reinforcement layer (11) is glass fiber mesh cloth or polyester fiber mesh cloth.