Novel single-component polyurea flame-retardant structure

Abstract

The utility model discloses a novel single-component polyurea flame-retardant structure which comprises a flame-retardant structure body which can be bent to form an end-to-end connection structure. The flame-retardant structure body is configured to be of a multi-layer structure; the connecting part is provided with a connecting end and a plurality of fixing ends, and the connecting end and the fixing ends are distributed at the two ends of the flame-retardant structure body respectively; the flame-retardant structure body is configured to be of a multi-layer structure which comprises a stabilizing layer. The first flame-retardant layer and the second flame-retardant layer are laid at the two ends of the stabilizing layer respectively; an insulating layer is arranged at one end, far away from the stabilizing layer, of the first flame-retardant layer, and a polyurea layer is arranged at one end, far away from the stabilizing layer, of the second flame-retardant layer. Compared with the prior art, the novel single-component polyurea flame-retardant structure has the advantages that two flame-retardant layers made of PC (polycarbonate) are additionally arranged, so that the flame-retardant effect can be further improved; and meanwhile, the flame-retardant structure body is of an open structure and can bear pipelines with different diameters in cooperation with the connecting part, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of flame retardant elastomer materials, in particular to a novel single-component polyurea flame retardant structure. Background Art

[0002] Polyurea is an elastomeric substance generated by the reaction of isocyanate components and amino compound components. It is divided into pure polyurea and semi-polyurea, and their performances are different. The most basic characteristics of polyurea are corrosion resistance, waterproofness, and wear resistance. Polyurea has excellent stability and can be used for a long time at temperatures below 120°, and can withstand short-term thermal shocks of 350°. At the same time, polyurea has good adhesion and can be used on many materials such as concrete, steel structures, wood, and pipes.

[0003] After searching, the utility model with publication number CN203806393U discloses a flame retardant high-strength thermal insulation polyurea outer garment, including a polyurethane foam layer, a first polyurea layer, a steel wire mesh and a second polyurea layer, wherein the polyurethane foam layer, the first polyurea layer, the steel wire mesh and the second polyurea layer are sequentially arranged on the outer surface of the tank body or the pipeline substrate from the inside to the outside. This prior art improves the strength by arranging a steel wire mesh, and has fast construction, high strength and good flame retardancy through two layers of polyurea. However, this prior art still has the following shortcomings: First, this prior art is an annular closed structure, which is inconvenient to operate when setting up the pipeline, and cannot adapt to pipelines of different diameters, and has a small scope of application; second, a double-layer polyurea is used for flame retardancy, but the flame retardant effect of using only the polyurea layer is limited and cannot enhance the flame retardant effect.

[0004] Based on the above technical problems, technicians in this field urgently need to develop a new type of single-component polyurea flame retardant structure with a simple structure, the addition of flame retardant materials, better flame retardant effect, and the ability to adapt to pipes of different sizes. Utility Model Content

[0005] The utility model aims to provide a novel single-component polyurea flame retardant structure which has a simple structure, is provided with flame retardant materials, has a better flame retardant effect and can adapt to pipes of different sizes.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The utility model discloses a novel one-component polyurea flame retardant structure, which comprises:

[0008] A flame retardant structural body, which can be bent to form an end-to-end structure; the flame retardant structural body is configured as a multi-layer structure;

[0009] A connecting part, which is provided with a connecting end and a plurality of fixed ends, which are respectively distributed at both ends of the flame retardant structural body, and the flame retardant structural body is connected to each other through the connecting part and can cover pipes of different diameters;

[0010] The flame retardant structural body is configured as a multi-layer structure, each including a stabilizing layer; and

[0011] A first flame retardant layer and a second flame retardant layer respectively laid at two ends of the stabilizing layer;

[0012] An insulating layer is disposed at one end of the first flame retardant layer away from the stabilizing layer, and a polyurea layer is disposed at one end of the second flame retardant layer away from the stabilizing layer.

[0013] Furthermore, the connecting portion includes a clamping block connected to one end of the flame retardant structural body; and

[0014] A plurality of rows of card interfaces are provided on the insulating layer, and the flame retardant structure body is firstly card-engaged and matched through the connecting portion.

[0015] Furthermore, the connecting portion further includes an adhesive sheet attached to the insulating layer; and

[0016] The adhesive cotton is arranged at the bottom of the polyurea layer. After the clamping block and the clamping interface are clamped, they are fixed by the adhesive sheet and the adhesive cotton.

[0017] Furthermore, the stabilizing layer is a steel mesh, the steel mesh is coated on the outside of the second flame retardant layer, the steel mesh is made of stainless steel or carbon steel, and the pore size of the steel mesh is 1 to 4 mm.

[0018] Preferably, the first flame retardant layer and the second flame retardant layer are made of flame retardant boards made of PC material, and the thickness of the flame retardant boards is 2 to 4 mm.

[0019] Preferably, the insulating layer is an insulating plate made of natural rubber material, which is attached to the first flame retardant layer.

[0020] Preferably, the thickness of the polyurea layer is 1 to 3 mm.

[0021] In the above technical solution, the utility model provides a novel one-component polyurea flame retardant structure, which has the following beneficial effects:

[0022] The utility model discloses a novel single-component polyurea flame retardant structure, which has a simple structure and, compared with the prior art, adds two layers of PC flame retardant layers, which can further improve the flame retardant effect; at the same time, the flame retardant structure body is an open structure, and can carry pipes of different diameters with the connection part, has a wide range of applications, and improves practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0024] Figure 1 A top view of a novel one-component polyurea flame retardant structure provided in an embodiment of the utility model;

[0025] Figure 2 A bottom view of a novel one-component polyurea flame retardant structure provided by an embodiment of the utility model;

[0026] Figure 3 A schematic diagram of a multi-layer partial cross-section of a novel single-component polyurea flame retardant structure provided in an embodiment of the utility model.

[0027] Description of reference numerals:

[0028] 1. Connecting part; 2. Stabilizing layer; 3. First flame retardant layer; 4. Second flame retardant layer; 5. Insulating layer; 6. Polyurea layer; 10. Flame retardant structure body;

[0029] 101, card block; 102, card interface; 103, adhesive sheet; 104, adhesive cotton. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0031] See also Figure 1 to Figure 3 As shown;

[0032] The utility model discloses a novel one-component polyurea flame retardant structure, which comprises:

[0033] The flame retardant structural body 10 can be bent to form an end-to-end structure; the flame retardant structural body 10 is configured as a multi-layer structure;

[0034] A connecting portion 1, which is provided with a connecting end and a plurality of fixed ends, which are respectively distributed at both ends of the flame retardant structural body 10, and the flame retardant structural body 10 is first connected through the connecting portion 1 and can cover pipes of different diameters;

[0035] The flame retardant structural body 10 is configured as a multi-layer structure, including a stabilizing layer 2; and

[0036] A first flame retardant layer 3 and a second flame retardant layer 4 respectively laid at both ends of the stabilizing layer 2;

[0037] An insulating layer 5 is disposed at one end of the first flame retardant layer 3 away from the stabilizing layer 2 , and a polyurea layer 6 is disposed at one end of the second flame retardant layer 4 away from the stabilizing layer 2 .

[0038] As a further introduction to this embodiment, the connecting portion 1 includes a clamping block 101 connected to one end of the flame retardant structural body 10; and

[0039] The multiple rows of card interfaces 102 provided on the insulating layer 5 enable the flame retardant structural body 10 to be firstly carded and matched through the connecting portion 1. In this embodiment, when the flame retardant structural body 10 is used, the card interfaces 102 are provided in three rows, each row is provided with two, and the number of the card blocks 101 is also two. When in use, generally, the card blocks 101 fall into the outermost card interfaces 102 when covering a pipe with a larger diameter, forming a first-place connection structure.

[0040] As a further introduction to this embodiment, the connecting portion 1 further includes an adhesive sheet 103 attached to the insulating layer 5; and

[0041] The adhesive cotton 104 provided at the bottom of the polyurea layer 6, after the clamping block 101 and the clamping interface 102 are clamped, is fixed by the adhesive sheet 103 and the adhesive cotton 104. In this embodiment, when the flame retardant structure body 10 covers a pipe with a smaller diameter, the clamping block 101 falls into the clamping interface 102 close to the inner side, and the part exceeding the diameter continues to cover along the arc shape, and is fixed by the adhesive sheet 103 and the adhesive cotton 104. It should be noted that the adhesive sheet 103 and the adhesive cotton 104 provided in this embodiment can select a variety of adhesive structures of the prior art, such as gluing, male and female fiber cotton bonding, etc., and can also select threaded connection, and the specific connection method can be changed according to actual needs.

[0042] As a further introduction to this embodiment, the stabilizing layer 2 is a steel mesh, which is coated on the outside of the second flame retardant layer 4. The steel mesh is made of stainless steel or carbon steel, and the pore size of the steel mesh is 1 to 4 mm, with the best choice being 2 mm.

[0043] As a preferred technical solution of this embodiment, the first flame retardant layer 3 and the second flame retardant layer 4 are made of PC flame retardant board, and the thickness of the flame retardant board is 2-4 mm, and the best choice is 3 mm. PC flame retardant board and endurance board are heat-insulating, cool-keeping and UV-proof, and have good flame retardant effect, with a ignition point of 560°C and self-extinguishing when away from fire.

[0044] As a preferred technical solution of this embodiment, the insulating layer 5 is an insulating plate made of natural rubber material, which is attached to the first flame retardant layer 3 .

[0045] As a preferred technical solution of this embodiment, the thickness of the polyurea layer 6 is 1-3 mm, and the best choice is 2 mm.

[0046] In the above technical solution, the utility model provides a novel one-component polyurea flame retardant structure, which has the following beneficial effects:

[0047] The utility model discloses a novel single-component polyurea flame retardant structure, which has a simple structure and, compared with the prior art, adds two layers of PC flame retardant layers, which can further improve the flame retardant effect; at the same time, the flame retardant structure body is an open structure, and can carry pipes of different diameters with the connection part, has a wide range of applications, and improves practicality.

[0048] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A novel one-component polyurea flame retardant structure, characterized in that: The flame retardant structure includes: A flame retardant structural body (10) capable of being bent to form an end-to-end structure; the flame retardant structural body (10) is configured as a multi-layer structure; A connecting portion (1) having a connecting end and a plurality of fixed ends, which are respectively distributed at two ends of the flame retardant structural body (10); the flame retardant structural body (10) is first connected via the connecting portion (1) and can cover pipes of different diameters; The flame retardant structural body (10) is configured as a multi-layer structure, each comprising a stabilizing layer (2); and A first flame retardant layer (3) and a second flame retardant layer (4) respectively laid on both ends of the stabilizing layer (2); An insulating layer (5) is provided at one end of the first flame retardant layer (3) away from the stabilizing layer (2), and a polyurea layer (6) is provided at one end of the second flame retardant layer (4) away from the stabilizing layer (2).

2. A novel one-component polyurea flame retardant structure according to claim 1, characterized in that: The connecting portion (1) comprises a clamping block (101) connected to one end of the flame retardant structural body (10); and A plurality of rows of card interfaces (102) are provided on the insulating layer (5), and the flame-retardant structural body (10) is first card-engaged and matched through the connecting portion (1).

3. A novel one-component polyurea flame retardant structure according to claim 2, characterized in that: The connecting portion (1) further comprises an adhesive sheet (103) attached to the insulating layer (5); and The adhesive cotton (104) is arranged at the bottom of the polyurea layer (6); after the clamping block (101) and the clamping interface (102) are clamped, they are bonded and fixed via the adhesive sheet (103) and the adhesive cotton (104).

4. The novel one-component polyurea flame retardant structure according to claim 1, characterized in that: The stabilizing layer (2) is a steel mesh, which is coated on the outside of the second flame retardant layer (4). The steel mesh is made of stainless steel or carbon steel, and the pore size of the steel mesh is 1 to 4 mm.

5. The novel one-component polyurea flame retardant structure according to claim 1, characterized in that: The first flame retardant layer (3) and the second flame retardant layer (4) are made of flame retardant boards made of PC material, and the thickness of the flame retardant boards is 2 to 4 mm.

6. The novel one-component polyurea flame retardant structure according to claim 1, characterized in that: The insulating layer (5) is an insulating plate made of natural rubber material and is attached to the first flame retardant layer (3).

7. The novel one-component polyurea flame retardant structure according to claim 1, characterized in that: The thickness of the polyurea layer (6) is 1 to 3 mm.

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