High-density gypsum plaster board

Abstract

The utility model discloses a high-density gypsum plaster board, which relates to the technical field of gypsum boards and comprises a composite board core, an upper paper surface layer and a lower paper surface layer, the upper paper surface layer and the lower paper surface layer are respectively arranged on the upper portion and the lower portion of the composite board core, and the composite board core comprises a high-density gypsum core, a damp-proof layer, a wear-resistant layer and a flame-retardant layer. The moisture-proof layers comprise the first moisture-proof layer and the second moisture-proof layer, the moisture-proof layers and the wear-resistant layers are arranged, the moisture-proof layers are arranged on the two sides of the high-density gypsum core, and active carbon powder arranged in the moisture-proof layers absorbs moisture in the board core, so that the board core is kept dry in the using process, and the probability that the gypsum board is rotted due to damp is reduced; the wear-resistant layer can improve the wear resistance of the surface of the board core and protect all the layers in the board core from being damaged, the protruding parts are arranged on the surface of the high-density gypsum core, the surface area of the high-density gypsum core can be increased through the protruding parts, the bonding face of the high-density gypsum core and the sound insulation layer is larger, and bonding is firmer.

Description

Technical Field

[0001] The utility model relates to the technical field of gypsum boards, in particular to a high-density paper-faced gypsum board. Background Art

[0002] Gypsum board is made of building gypsum as the main raw material, with appropriate amount of additives and fiber as the board core, and special board paper as the surface. It is processed into a board with the characteristics of light weight, sound insulation, heat insulation, strong processing performance and simple construction method.

[0003] High-density gypsum board is a new type of gypsum board made of high-density gypsum as the main raw material and produced through high-tech and sophisticated production. After searching, the patent authorization announcement number CN 208329442 U discloses a high-density gypsum board, which records "including: a high-density gypsum board core, the top and bottom of the high-density gypsum board core are respectively provided with a sound insulation layer and a heat insulation layer, the top of the sound insulation layer is connected to the reinforcing grid rib layer one, the bottom of the heat insulation layer is connected to the reinforcing grid rib layer two, and a fixed rib is provided between the reinforcing grid rib layer one and the reinforcing grid rib layer two, the bottom end of the fixed rib passes through the heat insulation layer and is fixedly connected to the reinforcing grid rib layer two, and the top end of the fixed rib passes through the sound insulation layer and is fixedly connected to the reinforcing grid rib layer one". The above-mentioned high-density gypsum board has poor moisture-proof effect during use, and moisture inside the board is prone to breed bacteria and rot. Utility Model Content

[0004] The utility model aims to provide a high-density gypsum board to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A high-density paper-faced gypsum board comprises a composite board core, an upper paper surface layer and a lower paper surface layer, wherein the upper and lower paper surface layers are respectively arranged on the upper and lower parts of the composite board core, the composite board core comprises a high-density gypsum core, a moisture-proof layer, a wear-resistant layer and a flame-retardant layer, the moisture-proof layer comprises a first moisture-proof layer and a second moisture-proof layer, the first moisture-proof layer and the second moisture-proof layer are respectively arranged with the upper and lower parts of the high-density gypsum core, the lower part of the second moisture-proof layer is arranged with a flame-retardant layer, the wear-resistant layer comprises a first wear-resistant layer and a second wear-resistant layer, the first wear-resistant layer is arranged above the first moisture-proof layer, and the second wear-resistant layer is arranged below the flame-retardant layer, and the upper surface and the lower surface of the high-density gypsum core are evenly provided with protrusions.

[0007] As a further solution of the utility model: a thermal insulation layer is provided between the first moisture-proof layer and the first wear-resistant layer.

[0008] As a further solution of the utility model: the first moisture-proof layer and the second moisture-proof layer are both melamine resin layers, and a plurality of micropores are evenly opened on the surface of the layers, and the micropores are filled with activated carbon powder.

[0009] As a further solution of the utility model: each layer of the composite board core is bonded by an adhesive.

[0010] As a further solution of the utility model: the first wear-resistant layer and the second wear-resistant layer are both wear-resistant paper with a thickness of 0.8-1.5 mm.

[0011] As a further solution of the utility model: the thickness ratio of the composite board core, the upper paper surface layer and the lower paper surface layer is 5:1:1.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model provides a moisture-proof layer and a wear-resistant layer. The moisture-proof layer is provided on both sides of the high-density gypsum core. The activated carbon powder provided therein absorbs moisture in the board core, so that the board core remains dry during use, and the probability of gypsum board rotting due to moisture is reduced. The wear-resistant layer can improve the wear resistance of the board core surface and protect the internal layers of the board core from being damaged.

[0014] 2. The utility model provides a raised portion on the surface of the high-density gypsum core, which can increase the surface area of ​​the high-density gypsum core, so that the bonding surface between the high-density gypsum core and the sound insulation layer is larger and the bonding is more firm.

[0015] 3. The utility model provides a flame retardant layer, which is a flame retardant board with a flame retardant added, which can play a flame retardant role and reduce the probability of fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a diagram of the overall structure of a high-density gypsum board.

[0017] Figure 2 A high-density gypsum board Figure 1 Structural composition diagram of the middle plate core.

[0018] Figure 3 A high-density gypsum board Figure 2 Schematic diagram of the structure of medium and high density gypsum core.

[0019] 1. Composite board core; 2. Upper paper surface layer; 3. Lower paper surface layer; 4. High-density gypsum core; 5. Moisture-proof layer; 501. First moisture-proof layer; 502. Second moisture-proof layer; 6. Thermal insulation layer; 7. Wear-resistant layer; 701. First wear-resistant layer; 702. Second wear-resistant layer; 8. Flame-retardant layer; 9. Raised part. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-2 In the embodiment of the utility model, a high-density paper-faced gypsum board includes a composite board core 1, an upper paper surface layer 2 and a lower paper surface layer 3. The thickness ratio of the composite board core 1, the upper paper surface layer 2 and the lower paper surface layer 3 is 5:1:1. The upper and lower paper surface layers 2 and the lower paper surface layers 3 are respectively arranged on the upper and lower parts of the composite board core 1. The composite board core 1 includes a high-density gypsum core 4, a moisture-proof layer 5, a wear-resistant layer 7 and a flame-retardant layer 8. The moisture-proof layer 5 includes a first moisture-proof layer 501 and a second moisture-proof layer 502. The first The moisture-proof layer 501 and the second moisture-proof layer 502 are respectively provided with the upper and lower parts of the high-density gypsum core 4. The first moisture-proof layer 501 and the second moisture-proof layer 502 are both melamine resin layers, and a plurality of micropores are evenly opened on the surface thereof. The micropores are filled with activated carbon powder. The activated carbon powder absorbs moisture in the composite board core 1, so that the composite board core 1 remains dry during use, reducing the probability of the gypsum board rotting due to moisture. Each layer of the composite board core 1 is bonded by an adhesive.

[0022] See also Figure 2 A flame retardant layer 8 is provided at the lower part of the second moisture-proof layer 502. The flame retardant layer 8 is a flame retardant board added with a flame retardant, which can play a flame retardant role and reduce the probability of fire.

[0023] See also Figure 2 The wear-resistant layer 7 includes a first wear-resistant layer 701 and a second wear-resistant layer 702. The first wear-resistant layer 701 is arranged above the first moisture-proof layer 501, and the second wear-resistant layer 702 is arranged below the flame-retardant layer 8. The first wear-resistant layer 701 and the second wear-resistant layer 702 are both wear-resistant paper with a thickness of 0.8-1.5 mm. The wear-resistant layer 7 can improve the wear resistance of the surface of the board core and protect the internal layers of the board core from being damaged. When the composite board core 1 rubs against foreign objects, the first wear-resistant layer 701 and the second wear-resistant layer 702 arranged on the outermost layer of the composite board core 1 can enhance the anti-friction ability of the board core and protect the internal structural layer of the board core.

[0024] See also Figure 3 The upper and lower surfaces of the high-density gypsum core 4 are evenly provided with raised portions 9, which can increase the surface area of ​​the high-density gypsum core 4, so that the bonding surface between the high-density gypsum core 4 and the moisture-proof layer 5 is larger and the bonding is stronger.

[0025] See also Figure 1A thermal insulation layer 6 is arranged between the first moisture-proof layer 501 and the first wear-resistant layer 701. The thermal insulation layer 6 is a rock wool board, which has good thermal insulation effect and is also waterproof and flame-retardant.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-density paper-faced gypsum board, comprising a composite board core (1), an upper paper surface layer (2) and a lower paper surface layer (3), characterized in that: An upper paper surface layer (2) and a lower paper surface layer (3) are respectively arranged above and below the composite board core (1); the composite board core (1) comprises a high-density gypsum core (4), a moisture-proof layer (5), a wear-resistant layer (7) and a flame-retardant layer (8); the moisture-proof layer (5) comprises a first moisture-proof layer (501) and a second moisture-proof layer (502); the first moisture-proof layer (501) and the second moisture-proof layer (502) are respectively arranged with the upper part and the lower part of the high-density gypsum core (4); the lower part of the second moisture-proof layer (502) is provided with a flame-retardant layer (8); the wear-resistant layer (7) comprises a first wear-resistant layer (701) and a second wear-resistant layer (702); the first wear-resistant layer (701) is arranged above the first moisture-proof layer (501), and the second wear-resistant layer (702) is arranged below the flame-retardant layer (8); and protrusions (9) are evenly arranged on the upper and lower surfaces of the high-density gypsum core (4).

2. The high-density gypsum board according to claim 1, characterized in that: A thermal insulation layer (6) is provided between the first moisture-proof layer (501) and the first wear-resistant layer (701).

3. The high-density gypsum board according to claim 1, characterized in that: The first moisture-proof layer (501) and the second moisture-proof layer (502) are both melamine resin layers, and a plurality of micropores are evenly formed on the surface of the layers, and the micropores are filled with activated carbon powder.

4. The high-density gypsum board according to claim 1, characterized in that: Each layer of the composite board core (1) is bonded by an adhesive.

5. The high-density gypsum board according to claim 1, characterized in that: The first wear-resistant layer (701) and the second wear-resistant layer (702) are both wear-resistant paper with a thickness of 0.8-1.5 mm.

6. The high-density gypsum board according to claim 1, characterized in that: The thickness ratio of the composite board core (1), the upper paper surface layer (2) and the lower paper surface layer (3) is 5:1:1.

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