CN213383417U

CN213383417U - Polyurethane geomembrane

Info

Publication number: CN213383417U
Application number: CN202021147889.3U
Authority: CN
Inventors: 郭峰; 王�华; 陈旭
Original assignee: Jiangsu Jinfeng Petroleum Machinery Manufacturing Co Ltd
Current assignee: Jiangsu Jinfeng Petroleum Machinery Manufacturing Co Ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-06-08
Anticipated expiration: 2030-06-19

Abstract

The utility model discloses a polyurethane geomembrane, include: go up base cloth layer and lower base cloth layer go up and be provided with polyurethane adhesive layer between base cloth layer and the lower base cloth layer the lower extreme on going up the base cloth layer evenly is provided with a plurality of swallow tail filling grooves go up the last base cloth in swallow tail filling groove upper end and be provided with the arc portion of bending in the base cloth layer the upper end on base cloth layer evenly is provided with a plurality of swallow tail filling grooves down be provided with down the arc portion of bending in the lower base cloth layer of swallow tail filling groove lower extreme polyurethane adhesive layer's upper end evenly is provided with a plurality of and last swallow tail filling groove and mutually supports go up polyurethane adhesive swallow tail filling arch the lower extreme on polyurethane adhesive layer evenly is provided with a plurality of lower polyurethane adhesive swallow tail filling arch of mutually supporting with swallow tail filling groove down.

Description

Polyurethane geomembrane

Technical Field

The utility model relates to a geomembrane especially relates to a polyurethane geomembrane.

Background

Geomembranes are classified into plastic geomembranes (such as polyethylene, polyvinyl chloride and the like), rubber geomembranes (such as ethylene, propylene copolymers, chloroprene rubber and the like) and polyurethane geomembranes, wherein the polyurethane geomembranes are all coated fabrics and mainly comprise base cloth and a coating agent. Adopt the plane to bond between current polyurethane geomembrane polyurethane viscose layer and the base cloth layer, the bonding contact surface is less, bonds unstably, simultaneously, because the base cloth layer does not have ductility, takes place risks such as base cloth layer damage, fracture very easily at the in-process of dragging, leads to the base cloth to damage, in addition, current geomembrane simple structure, waterproof, prevent stinging, prevent that acid-base effect is poor, can not satisfy the operation requirement.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: provides a polyurethane geomembrane with good extensibility.

In order to solve the technical problem, the utility model discloses a technical scheme is: a polyurethane-based geomembrane comprising: the adhesive cloth comprises an upper base cloth layer and a lower base cloth layer, wherein a polyurethane adhesive layer is arranged between the upper base cloth layer and the lower base cloth layer, a plurality of upper dovetail filling grooves are uniformly arranged at the lower end of the upper base cloth layer, an upper arc-shaped bending part is arranged in the upper base cloth layer at the upper end of each upper dovetail filling groove, a plurality of lower dovetail filling grooves are uniformly arranged at the upper end of the lower base cloth layer, a lower arc-shaped bending part is arranged in the lower base cloth layer at the lower end of each lower dovetail filling groove, a plurality of upper polyurethane adhesive dovetail filling bulges matched with the upper dovetail filling grooves are uniformly arranged at the upper end of the polyurethane adhesive layer, a plurality of lower polyurethane adhesive dovetail filling bulges matched with the lower dovetail filling grooves are uniformly arranged at the lower end of the polyurethane adhesive layer, an upper plastic film layer is arranged at the upper end of the upper plastic film layer, and an upper acrylic waterproof layer is arranged, the lower end of the lower base cloth layer is provided with a lower plastic film layer, and the lower end of the lower plastic film layer is provided with a lower acrylic waterproof layer.

In order to better solve the technical problem, the utility model discloses a further technical scheme is: and the upper end of the upper acrylic waterproof layer is provided with a polyester non-woven fabric stab-resistant layer.

In order to better solve the technical problem, the utility model discloses a further technical scheme is: and the lower end of the lower acrylic acid waterproof layer is provided with a polyester grating.

In order to better solve the technical problem, the utility model discloses a further technical scheme is: an upper arc-shaped groove is formed between the upper arc-shaped bending part and the upper plastic film layer, and an upper polyurethane adhesive tape is filled in the upper arc-shaped groove.

In order to better solve the technical problem, the utility model discloses a further technical scheme is: a lower arc-shaped groove is formed between the lower arc-shaped bending part and the lower plastic film layer, and a lower polyurethane adhesive tape is filled in the lower arc-shaped groove.

The utility model has the advantages that: above-mentioned polyurethane geomembrane, novel structure, base cloth layer and polyurethane viscose layer have increased a plurality of base cloth forked tail filling grooves and the protruding cooperation bonding of polyurethane forked tail filling on the basis that the plane bonds, greatly increased the bonding contact surface, it is stable to bond, simultaneously, base cloth layer all has the arc portion of bending every section distance, can greatly increased the ductility of base cloth layer, in-process that pulls is difficult for taking place the base cloth layer damage, cracked risk, improve the flexible ability of base cloth, extensibility can be good, in addition, form the arc recess between the arc portion of bending of base cloth layer and the plastic film, fill through polyurethane adhesive tape in the arc recess, arc recess space reduces in-process that pulls, polyurethane adhesive tape can improve the bonding effect between base cloth layer and the plastic film, acrylic acid waterproof layer, dacron non-woven fabrics puncture-proof layer and dacron grid have still been increased, waterproof, Good stab and acid and alkali resistance and good structural strength.

Drawings

Fig. 1 is a schematic structural diagram of the polyurethane geomembrane of the present invention.

In the figure: 1. go up the base cloth layer, 11, go up the forked tail and fill the groove, 12, go up the arc portion of bending, 13, go up the arc recess, 14, go up the polyurethane adhesive tape, 2, lower base cloth layer, 21, lower forked tail fills the groove, 22, the arc portion of bending down, 23, lower arc recess, 24, lower polyurethane adhesive tape, 3, the polyurethane adhesive tape layer, 31, go up the polyurethane adhesive forked tail and fill the arch, 32, lower polyurethane adhesive forked tail is filled the arch, 4, go up the plastic film layer, 5, go up the acrylic acid waterproof layer, 6, lower plastic film layer, 7, lower acrylic acid waterproof layer, 8, dacron non-woven fabrics stab-proof layer, 9, dacron grid.

Detailed Description

The following detailed description of the present invention will be made in conjunction with the accompanying drawings and specific embodiments.

As shown in fig. 1, the polyurethane type geomembrane includes: an upper base cloth layer 1 and a lower base cloth layer 2, a polyurethane adhesive layer 3 is arranged between the upper base cloth layer 1 and the lower base cloth layer 2, a plurality of upper dovetail filling grooves 11 are uniformly arranged at the lower end of the upper base cloth layer 1, an upper arc-shaped bending part 12 is arranged in the upper base cloth layer 1 at the upper end of the upper dovetail filling groove 11, a plurality of lower dovetail filling grooves 21 are uniformly arranged at the upper end of the lower base cloth layer 2, a lower arc-shaped bending part 22 is arranged in the lower base cloth layer 2 at the lower end of the lower dovetail filling groove 21, a plurality of upper polyurethane adhesive dovetail filling bulges 31 matched with the upper dovetail filling grooves 11 are uniformly arranged at the upper end of the polyurethane adhesive layer 3, a plurality of lower polyurethane adhesive dovetail filling bulges 32 matched with the lower dovetail filling grooves 21 are uniformly arranged at the lower end of the polyurethane adhesive layer 3, an upper plastic film layer 4 is arranged at the upper end of the upper base cloth layer 1, an upper acrylic waterproof layer 5 is arranged at the upper end of the upper plastic film layer 4, a lower plastic film layer 6 is arranged at the lower end of the lower base fabric layer 2, and a lower acrylic waterproof layer 7 is arranged at the lower end of the lower plastic film layer 6.

As shown in fig. 1, in this example, in order to achieve a better stab-resistant effect, a polyester non-woven stab-resistant layer 8 is disposed on an upper end of the upper acrylic waterproof layer 5.

As shown in fig. 1, in this example, a polyester grill 9 is provided at the lower end of the lower acrylic waterproof layer 7 for more stable structural strength.

As shown in fig. 1, in this example, in order to bond more firmly during stretching, an upper arc-shaped groove 13 is provided between the upper arc-shaped bending part 12 and the upper plastic film layer 4, and an upper polyurethane adhesive tape 14 is filled in the upper arc-shaped groove 13.

As shown in fig. 1, in this example, in order to bond more firmly when stretching, a lower arc-shaped groove 23 is provided between the lower arc-shaped bending part 22 and the lower plastic film layer 6, and a lower polyurethane strip 24 is filled in the lower arc-shaped groove 23.

Above-mentioned polyurethane geomembrane, novel structure, base cloth layer and polyurethane viscose layer have increased a plurality of base cloth forked tail filling grooves and the protruding cooperation bonding of polyurethane forked tail filling on the basis that the plane bonds, greatly increased the bonding contact surface, it is stable to bond, simultaneously, base cloth layer all has the arc portion of bending every section distance, can greatly increased the ductility of base cloth layer, in-process that pulls is difficult for taking place the base cloth layer damage, cracked risk, improve the flexible ability of base cloth, extensibility can be good, in addition, form the arc recess between the arc portion of bending of base cloth layer and the plastic film, fill through polyurethane adhesive tape in the arc recess, arc recess space reduces in-process that pulls, polyurethane adhesive tape can improve the bonding effect between base cloth layer and the plastic film, acrylic acid waterproof layer, dacron non-woven fabrics puncture-proof layer and dacron grid have still been increased, waterproof, Good stab and acid and alkali resistance and good structural strength.

Claims

1. The polyurethane geomembrane is characterized in that: the method comprises the following steps: go up base cloth layer (1) and base cloth layer (2) down, be provided with polyurethane viscose layer (3) between going up base cloth layer (1) and base cloth layer (2) down, the lower extreme of going up base cloth layer (1) evenly is provided with a plurality of forked tail filling grooves (11), be provided with arc bending portion (12) in going up base cloth layer (1) of going up forked tail filling groove (11) upper end, evenly be provided with a plurality of forked tail filling grooves (21) down in the upper end of base cloth layer (2), be provided with down arc bending portion (22) in lower base cloth layer (2) of forked tail filling groove (21) lower extreme down, evenly be provided with a plurality of last polyurethane viscose forked tail filling arch (31) of mutually supporting with last forked tail filling groove (11) in the upper end of polyurethane viscose layer (3), evenly be provided with a plurality of polyurethane viscose forked tail filling groove (21) mutually supporting down polyurethane viscose forked tail filling arch (32) down in the lower extreme of polyurethane viscose layer (3), the waterproof and waterproof acrylic fabric is characterized in that an upper plastic film layer (4) is arranged at the upper end of the upper base fabric layer (1), an upper acrylic waterproof layer (5) is arranged at the upper end of the upper plastic film layer (4), a lower plastic film layer (6) is arranged at the lower end of the lower base fabric layer (2), and a lower acrylic waterproof layer (7) is arranged at the lower end of the lower plastic film layer (6).

2. The polyurethane geomembrane according to claim 1, wherein: the upper end of the upper acrylic waterproof layer (5) is provided with a polyester non-woven fabric stab-resistant layer (8).

3. The polyurethane-based geomembrane according to claim 1 or 2, wherein: the lower end of the lower acrylic acid waterproof layer (7) is provided with a polyester grille (9).

4. The polyurethane geomembrane according to claim 1, wherein: an upper arc-shaped groove (13) is arranged between the upper arc-shaped bending part (12) and the upper plastic film layer (4), and an upper polyurethane adhesive tape (14) is filled in the upper arc-shaped groove (13).

5. The polyurethane geomembrane according to claim 1, wherein: a lower arc-shaped groove (23) is arranged between the lower arc-shaped bending part (22) and the lower plastic film layer (6), and a lower polyurethane adhesive tape (24) is filled in the lower arc-shaped groove (23).