CN213509068U

CN213509068U - Fire-resistant gypsum board and fire-resistant wall

Info

Publication number: CN213509068U
Application number: CN202021238454.XU
Authority: CN
Inventors: 徐正东; 董占波
Original assignee: Beijing New Building Material Group Co Ltd; China National Building Materials Innovation and Technology Research Institute Co Ltd
Current assignee: Beijing New Building Material Group Co Ltd; China National Building Materials Innovation and Technology Research Institute Co Ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-06-22
Anticipated expiration: 2030-06-29

Abstract

The utility model discloses a fire-resistant gypsum board and refractory wall body relates to building materials technical field. The fire-resistant gypsum board comprises a gypsum board core and a metal foil, wherein the gypsum board core comprises a first surface and a second surface opposite to the first surface, and the metal foil covers the first surface and/or the second surface. The embodiment of the utility model provides a through cover the metal forming on the relative first surface of gypsum board core and the at least one side surface of second surface, the metal forming connects into a whole with gypsum board, and after gypsum board core fracture, it is whole that the prevention flame pierces through the gypsum board, has promoted the fire-resistant ability of gypsum board.

Description

Fire-resistant gypsum board and fire-resistant wall

Technical Field

The utility model relates to a building and building materials technical field, more specifically relates to a fire-resistant gypsum board and refractory wall body.

Background

The gypsum board is a material prepared by taking building gypsum as a main raw material. The building material has the advantages of light weight, high strength, small thickness, convenient processing, sound insulation, heat insulation, fire prevention and other good performances, and is one of the currently-developed novel light boards. Gypsum boards have been widely used for interior partitions, wall-covering panels (instead of wall plasters), ceilings, sound-absorbing panels, floor slabs, and various decorative panels in various buildings such as houses, office buildings, shops, hotels, and industrial plants.

The gypsum board can be dehydrated, shrunk and cracked under the action of high-temperature flame, and the fire-insulating capability is lost. By adding a certain amount of fire-resistant reinforcing fibers into the core of the gypsum board, the gypsum board does not fall off immediately after cracking due to the pulling action of the fibers, and although the cracking condition of the gypsum board is improved, the generation of cracks cannot be completely avoided, so that the fire resistance of the gypsum board needs to be further improved.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a fire-resistant gypsum board and refractory wall body for solve the not enough problem of gypsum board fire-resistant ability.

An embodiment of the utility model provides a fire-resistant gypsum board, including gypsum board core and metal forming, the gypsum board core includes first surface and the second surface relative with the first surface, and metal forming covers first surface and/or second surface.

The embodiment of the utility model provides a refractory wall body is still provided, include fossil fragments and set up above-mentioned fire-resistant gypsum board on fossil fragments.

The embodiment of the utility model provides a fire-resistant gypsum board and refractory wall body covers the metal forming through relative first surface at the gypsum board core and the at least one side surface of second surface, and the metal forming connects into a whole with gypsum board, and the metal forming not only can reflect the flame temperature, reduces the fracture risk of gypsum board core, can also prevent that flame from piercing through the gypsum board wholly after the gypsum board core fracture, has promoted the fire-resistant capability of gypsum board.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the embodiments of the present invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention and not to limit the embodiments of the invention.

FIG. 1 is a schematic diagram of a refractory gypsum board according to an embodiment of the present invention;

FIG. 2 is a structural diagram of a refractory wall assembled by refractory gypsum boards according to an embodiment of the present invention;

FIG. 3 is a block diagram of another fire resistant gypsum board according to an embodiment of the present invention;

FIG. 4a is a block diagram of another fire resistant gypsum board according to an embodiment of the present invention;

fig. 4b is a schematic diagram of another fire-resistant gypsum board according to an embodiment of the present invention.

Description of the reference numerals

1-fire resistant gypsum board;

10-gypsum board core; 11-a first surface; 12-a second surface;

20-a metal foil;

30-keel;

and 40-protective paper.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

In the related art, the gypsum board is dehydrated, shrunk and cracked under the action of high-temperature flame, and the fire-insulating capability is lost. By adding a certain amount of fire-resistant reinforcing fibers into the gypsum board, the gypsum board cannot fall off immediately after cracking due to the drawing action of the fibers, and although the cracking condition of the gypsum board is improved, the generation of cracks cannot be completely avoided, so that the fire resistance of the gypsum board needs to be further improved.

In order to promote the fire resistance of gypsum board, the embodiment of the utility model provides a fire-resistant gypsum board, including gypsum board core and metal forming, the gypsum board core includes first surface and the second surface relative with the first surface, and metal forming covers first surface and/or second surface.

The embodiment of the utility model provides a through cover the metal forming on the surface of at least one side at gypsum board core relative first surface and second surface, the metal forming connects into a whole with gypsum board, and after gypsum board core fracture, it is whole that the prevention flame pierces through the gypsum board, has promoted the fire-resistant ability of gypsum board.

The technical solution of the refractory gypsum board according to the embodiment of the present invention will be specifically described below with reference to the accompanying drawings.

Fig. 1 is a structural diagram of a refractory gypsum board according to an embodiment of the present invention. Fire resistant gypsum board 1 comprises a gypsum core 10 and a metal foil 20, gypsum core 10 comprising a first surface 11 and a second surface 12 opposite the first surface, metal foil 20 covering first surface 11. The foil 20 is secured to the first surface 11 of the gypsum core 10 by adhesive means, although other means of securing, such as stapling, may be used.

In an exemplary embodiment, the gypsum board core comprises a fiberglass blanket gypsum board and a paper gypsum board. The gypsum board core is of a cuboid structure, the length of the gypsum board core is 2400mm or 3000mm, the width of the gypsum board core is 1200mm, and the thickness of the gypsum board core is 9mm-15mm, such as 9.5mm, 12mm, 15mm and the like. The gypsum board core can be a single-layer board or a multi-layer board, and is not limited herein.

In an exemplary embodiment, the metal foil includes a copper foil or an aluminum foil, and the metal foil has a thickness of 0.05mm to 0.3 mm. In one example, the metal foil is an aluminum foil, and the aluminum foil may be classified into a hard foil, a semi-hard foil, and a soft foil according to the state, and may be classified into a roll-shaped aluminum foil and a sheet-shaped aluminum foil according to the shape. Optionally, the aluminum foil has a thickness of 0.1mm to 0.2 mm. The aluminum foil has a very high reflectivity to heat, and most of the heat is reflected back, thereby reducing the temperature to which the gypsum board core is subjected. And the good heat conductivity of aluminium foil can make the heat spread the gypsum board core surface fast, prevents that the local high temperature of gypsum board core, the dehydration is serious, causes the gypsum board core fracture.

In an exemplary embodiment, the metal foil is bonded to the first surface of the gypsum board core by an adhesive, the adhesive may be a thermosetting adhesive with high temperature resistance, such as epoxy resin adhesive and polyurethane adhesive, and the high temperature resistance thermosetting adhesive may prevent the aluminum foil from falling off due to heating, and may also be glutinous rice adhesive. The glutinous rice glue has the characteristics of no toxicity, no peculiar smell, environmental protection and health.

Fig. 2 is a structural diagram of a refractory wall body assembled by refractory gypsum boards according to an embodiment of the present invention. As shown in fig. 2, the fire-resistant gypsum board of the embodiment of the present invention is used, the fire-resistant gypsum board 1 is fixed on the keel 30, the metal foil 20 is disposed between the keel 30 and the gypsum board core 10, when a fire occurs on one side of the wall, for example, the upside, the heat generated by the flame strikes the upper gypsum board core 10 in the form of infrared electromagnetic wave, so that the temperature of the gypsum board core 10 rises, the gypsum board core 10 becomes a heat source, the heat energy is emitted to strike the metal foil 20, so that the surface temperature of the metal foil 20 rises, because the reflectivity of the metal foil 20 is extremely high, most of the heat is reflected back, and the heat can not spread to the wall board on. Meanwhile, the gypsum board core 10 on the upper side of the fire disaster may be dehydrated and cracked after being heated, the cracked position of the gypsum board core 10 becomes a flame penetration point, and because the metal foil 20 covers the surface of the gypsum board core 10, the flame can be reflected and separated by the metal foil 20, so that the fire resistance of the gypsum board is improved. Moreover, the metal foil 20 is a good thermal conductor, and the metal foil 20 can make the surface of the gypsum board core 10 heated uniformly, so that the cracking risk of the gypsum board core can be reduced.

Fig. 3 is a structural diagram of another fire-resistant gypsum board according to an embodiment of the present invention. In an exemplary embodiment, as shown in fig. 3, the metal foil 20 covers both the first surface 11 and the second surface 12 of the gypsum board core 10, i.e., the metal foil is laid on both side surfaces of the gypsum board core. The thickness of the metal foil on the two sides of the gypsum board core can be the same or different. In this embodiment, since the metal foils are laid on both surfaces of the gypsum board core, the fire resistance of the fire-resistant gypsum board is further improved.

Fig. 4a is a structural diagram of another fire-resistant gypsum board according to the embodiment of the present invention, and fig. 4b is a structural diagram of another fire-resistant gypsum board according to the embodiment of the present invention. In an exemplary embodiment, as shown in fig. 4a and 4b, the fire resistant gypsum board 1 further includes a facing paper 40, the facing paper 40 being disposed between the metal foil 20 and the gypsum core 11. As shown in fig. 4a, the facing paper 40 is disposed on the first surface 11 of the gypsum board core 10, and the metal foil 20 is disposed on a side of the facing paper 40 facing away from the gypsum board core 10. As shown in fig. 4b, the facing paper 40 includes a first facing paper disposed on the first surface 11 of the gypsum board core 10, and a second facing paper disposed on the second surface 12 of the gypsum board core 10, and the metal foil 20 includes a first metal foil disposed on a side of the first facing paper facing away from the gypsum board core and a second metal foil disposed on a side of the second facing paper facing away from the gypsum board core. In this embodiment, the metal forming can be compound on the mask paper, in thistle board production process, directly bonds metal forming and mask paper combined material on the gypsum core, promotes the production efficiency of fire-resistant gypsum board.

The embodiment of the utility model provides a through cover the metal forming on the relative first surface of gypsum board core and the at least one side surface of second surface, the metal forming connects into a whole with gypsum board, and after gypsum board core fracture, it is whole that the prevention flame pierces through the gypsum board, has promoted the fire-resistant ability of gypsum board. And metal forming (for example, aluminum foil) can be pasted on the gypsum board core through the adhesive, and is integrated with the gypsum board core, and metal forming's homogeneity is better, compares in the wall body structure of independent installation of aluminum foil, is difficult to appear phenomenons such as fold, pile up, and it is more convenient along with the installation of wallboard together, and the installation effectiveness is high.

An embodiment of the utility model provides a refractory wall body, including fossil fragments with set up in above-mentioned fire-resistant gypsum board on fossil fragments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "mouth" word structure "and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the structure referred to has a specific orientation, is constructed and operated in a specific orientation, and thus, is not to be construed as limiting the present invention.

In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "directly connected," "indirectly connected," "fixedly connected," "mounted," and "assembled" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; the terms "mounted," "connected," and "fixedly connected" may be directly connected or indirectly connected through intervening media, or may be connected through two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Although the embodiments of the present invention have been described above, the description is only for the convenience of understanding the present invention, and the present invention is not limited thereto. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A refractory gypsum board, comprising: a gypsum board core comprising a first surface and a second surface opposite the first surface, and a metal foil covering the first surface and/or the second surface.

2. Refractory gypsum board according to claim 1, wherein: the metal foil is copper foil or aluminum foil.

3. Refractory gypsum board according to claim 1, wherein: the thickness of the metal foil is 0.05mm-0.3 mm.

4. Refractory gypsum board according to claim 1, wherein: the metal foil is an aluminum foil, and the thickness of the aluminum foil is 0.1mm-0.2 mm.

5. The fire resistant gypsum board of any one of claims 1-4, wherein: the gypsum board core is a glass fiber blanket gypsum board or a paper surface gypsum board.

6. The fire resistant gypsum board of any one of claims 1-4, wherein: the metal foil is bonded to the gypsum board core by an adhesive.

7. Refractory gypsum board according to claim 6, wherein: the binder is glutinous rice glue.

8. The fire resistant gypsum board of any one of claims 1-4, wherein: still include mask paper, mask paper set up in the metal foil with between the gypsum board core.

9. The fire resistant gypsum board of claim 8, wherein: the mask paper including set up in the first mask paper of the first surface of gypsum board core, with set up in second mask paper on the second surface of gypsum board core, the metal forming is including setting up first mask paper deviates from the first metal forming of gypsum board core one side is in with setting up second mask paper deviates from the second metal forming of gypsum board core one side.

10. A refractory wall, comprising: a keel and a fire resistant gypsum board as claimed in any one of claims 1 to 9 disposed on the keel.