Rock wool sandwich fireproof wallboard

Abstract

The utility model provides a rock wool sandwich fire-resistant wallboard, which relates to the technical field of building materials and comprises a rock wool sandwich layer and a fire-resistant adhesive, two sides of the rock wool sandwich layer are respectively adhered with a first reinforcing layer and a second reinforcing layer through the fire-resistant adhesive, the other side of the first reinforcing layer is provided with a fire-resistant veneer, and the other side of the second reinforcing layer is provided with a fire-resistant veneer. The rock wool sandwich layer, the nanometer fireproof coating and the metal foil layer are arranged, rock wool can insulate heat and prevent fire, the nanometer fireproof coating can restrain flame spreading, the metal foil layer can reflect heat and reduce heat conduction, the heat insulation effect is good, the heat insulation effect is good, the heat insulation effect is good, and the heat insulation effect is good. The fire resistance of the wallboard is greatly improved, and the high fire endurance requirement of a building is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to building material technical field especially relates to a rock wool sandwich fire resistance wallboard. BACKGROUND

[0002] Wallboard refers to a kind of building material, which is the load-bearing system of house structure composed of wall and floor slab, and the load-bearing wall of wallboard structure can be made of brick, block, prefabricated or cast-in-place concrete.

[0003] The existing technology has the rock wool glue layer's heat preservation wallboard, and the public number is CN215330629U, the heat preservation wallboard with rock wool glue layer, including wallboard, the wallboard includes first asbestos glue board layer, carbonized bamboo strip layer, polyurethane foam layer, second asbestos glue board layer and imitation wood grain decorative layer, the first asbestos glue board layer top end surface is fixedly connected to carbonized bamboo strip layer bottom end surface, carbonized bamboo strip layer top end surface is fixedly connected to polyurethane foam layer bottom end surface, polyurethane foam layer top end surface is fixedly connected to second asbestos glue board layer bottom end surface, second asbestos glue board layer top end surface is fixedly connected to imitation wood grain decorative layer bottom end surface

[0004] The wallboard improves the strength and the appearance of wallboard by adding carbonized bamboo strip layer, imitation wood grain decorative layer etc., but does not optimize the fire resistance performance, so it is difficult to meet the demand of modern building on fire resistance limit (such as >=2 hours) and green building materials. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problems in prior art and provides a rock wool sandwich fire resistance wallboard.

[0006] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a rock wool sandwich fire resistance wallboard, including rock wool sandwich layer, further including fire resistance adhesive, the two sides of the rock wool sandwich layer are respectively bonded with first reinforcing layer and second reinforcing layer through fire resistance adhesive, the other side of the first reinforcing layer is provided with fireproof veneer, the outer surface of the fireproof veneer is coated with nano fireproof coating, the other side of the second reinforcing layer is provided with baseboard layer.

[0007] Preferably, the first reinforcing layer and the second reinforcing layer are both glass-magnesium board or calcium silicate board, and the fire resistance adhesive is phosphate-based inorganic adhesive.

[0008] Preferably, the baseboard layer is flame-retardant oriented strand board, one side of the baseboard layer facing the second reinforcing layer is provided with a plurality of interlaced strip-shaped grooves, and the strip-shaped grooves are filled with intumescent fireproof sealant.

[0009] Preferably, a metal foil layer is arranged between the fireproof veneer and the first reinforcing layer, the metal foil layer is aluminum foil or copper foil, and the metal foil layer is fixed with the fireproof veneer and the second reinforcing layer through high-temperature resistant adhesive.

[0010] Preferably, the nano fireproof coating is made of nano alumina, silica sol and fire retardant.

[0011] Preferably, the substrate layer side is provided with a mortise and tenon joint structure, the mortise and tenon joint structure includes a tenon fixedly connected with one side of the substrate layer and a groove opened in the other side of the substrate layer, and the tenon and the groove are both provided with a plurality of linear array distribution along the length direction of the substrate layer.

[0012] Compared with the prior art, the utility model has the advantages and positive effects that,

[0013] 1、The utility model discloses a rock wool sandwich fire -resistant wallboard, including first reinforcing layer, rock wool sandwich layer, second reinforcing layer and substrate layer, the substrate layer is provided with the strip groove and fills the expansion type fire -retardant sealant, meets the fire expansion and can seal fire -resistant.

[0014] 2、The utility model discloses a rock wool sandwich fire -resistant wallboard, including first reinforcing layer, rock wool sandwich layer, second reinforcing layer and substrate layer, the substrate layer is provided with the strip groove and fills the expansion type fire -retardant sealant, meets the fire expansion and can seal fire -resistant. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three -dimensional structure schematic diagram of rock wool sandwich fire -resistant wallboard of the utility model;

[0016] Figure 2 It is the plane view of nano fireproof coating in the utility model;

[0017] Figure 3 It is a three -dimensional structure schematic diagram of tenon in the utility model;

[0018] Figure 4 It is Figure 1 It is the close -up of A in the utility model.

[0019] Legend: 1, fire -resistant veneer, 2, first reinforcing layer, 3, rock wool sandwich layer, 4, second reinforcing layer, 5, substrate layer, 6, fire -resistant adhesive, 7, nano fireproof coating, 8, metal foil layer, 9, groove, 10, tenon, 11, strip groove, 12, expansion type fire -retardant sealant. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above -mentioned purpose, features and advantages of the utility model, the utility model is further explained below with the help of drawings and examples. It should be explained that the embodiment of the application and the features in the embodiment can be combined with each other without conflict.

[0021] Many specific details are set forth in the following description in order to provide a thorough understanding of the present application. However, the present application can be practiced according to other embodiments that can not be described in detail herein, and the present application is not limited to the specific embodiments described herein.

[0022] As shown in the figure, a kind of rock wool sandwich fire-resistant wallboard, including rock wool sandwich layer 3, also include fire-resistant adhesive 6, rock wool sandwich layer 3 two sides are bonded with first reinforcing layer 2 and second reinforcing layer 4 respectively by fire-resistant adhesive 6, first reinforcing layer 2 other side is provided with fireproof decorative panel 1, the outer surface of fireproof decorative panel 1 is coated with nano fireproof coating 7, and second reinforcing layer 4 other side is provided with base plate layer 5. Figures 1-4 In the technical scheme, through the design of multilayer composite structure, rock wool sandwich layer 3 as the core fire-resistant layer, combined with the reinforcing layer on both sides and fireproof decorative panel 1, base plate layer 5, forms multiple fireproof barriers, fire-resistant adhesive 6 not only realizes the high-strength bonding of each layer, but also further blocks the high-temperature transmission. Nano fireproof coating 7 significantly improves the fire resistance limit of the surface of the wallboard through the high thermal stability and flame retardant properties of nano materials, meeting the demand of modern buildings for ≥2 hours fire resistance.

[0023] As shown in the figure, first reinforcing layer 2 and second reinforcing layer 4 are both glass-magnesium board or calcium silicate board, and fire-resistant adhesive 6 is phosphate-based inorganic adhesive.

[0024] Figure 4 In the technical scheme, glass-magnesium board or calcium silicate board has the characteristics of high strength, high temperature resistance and low thermal conductivity, and can effectively suppress the spread of fire as a reinforcing layer, while improving the impact resistance of the wallboard. Phosphate-based inorganic adhesive can maintain stable bonding strength at high temperature, avoiding the delamination of the structure caused by the failure of traditional organic adhesive at high temperature, and further ensuring the integrity of the wallboard in fire.

[0025] As shown in the figure, base plate layer 5 is a flame-retardant oriented strand board, one side of base plate layer 5 facing second reinforcing layer 4 is provided with a plurality of interlaced strip-shaped grooves 11, and strip-shaped grooves 11 are filled with intumescent fireproof sealant 12.

[0026] In the technical scheme, the flame-retardant oriented strand board improves the fire resistance of the substrate through chemical modification, and the interlaced strip-shaped grooves 11 design can increase the filling area of the fireproof sealant. Intumescent fireproof sealant 12 tightly fills the gap after expansion, forming a dense fireproof isolation zone, effectively blocking the flow path of high-temperature flue gas and oxygen, and delaying the spread of fire. Figure 3 As shown in the figure, base plate layer 5 is a flame-retardant oriented strand board, one side of base plate layer 5 facing second reinforcing layer 4 is provided with a plurality of interlaced strip-shaped grooves 11, and strip-shaped grooves 11 are filled with intumescent fireproof sealant 12.

[0027] As shown in the figure, base plate layer 5 is a flame-retardant oriented strand board, one side of base plate layer 5 facing second reinforcing layer 4 is provided with a plurality of interlaced strip-shaped grooves 11, and strip-shaped grooves 11 are filled with intumescent fireproof sealant 12.

[0028] Figure 2 As shown in the figure, base plate layer 5 is a flame-retardant oriented strand board, one side of base plate layer 5 facing second reinforcing layer 4 is provided with a plurality of interlaced strip-shaped grooves 11, and strip-shaped grooves 11 are filled with intumescent fireproof sealant 12. Figure 4 ​​As shown, a metal foil layer 8 is arranged between the fireproof decorative panel 1 and the first reinforcing layer 2, the metal foil layer 8 is aluminum foil or copper foil, and the metal foil layer 8 is fixed with the fireproof decorative panel 1 and the second reinforcing layer 4 by high-temperature-resistant adhesive.

[0029] In the technical solution, the metal foil layer 8 serves as a reflective thermal insulation layer, can reflect most of the radiant heat, reduce the efficiency of heat transfer to the interior of the wallboard, and the high thermal conductivity of the aluminum foil or copper foil can quickly disperse local high temperature. Combined with the high-temperature-resistant adhesive, the metal layer is still closely attached to each structural layer under extreme conditions, avoiding delamination caused by thermal stress.

[0030] As shown in Figure 1 The nano fireproof coating 7 is made of mixed nano aluminum oxide, silica sol and flame retardant.

[0031] In the technical solution, the nano aluminum oxide particles have very high thermal stability and chemical inertness, and can form a dense protective layer on the surface of the coating; the silica sol serves as a bonding matrix to enhance the adhesion and wear resistance of the coating; the flame retardant decomposes to produce inert gas at high temperature, inhibiting the combustion reaction. The three work together to significantly improve the fire resistance limit and ablation resistance of the decorative panel.

[0032] As shown in Figure 3 and Figure 4 The side of the substrate layer 5 is provided with a mortise and tenon connection structure, which includes a tenon 10 fixedly connected to one side of the substrate layer 5 and a groove 9 opened on the other side of the substrate layer 5, and the tenon 10 and the groove 9 are both provided with a plurality of linear array distribution along the length direction of the substrate layer 5.

[0033] In the technical solution, the mortise and tenon connection structure realizes seamless splicing between wallboards through the precise fitting of the tenon 10 and the groove 9, avoiding the thermal bridge effect caused by traditional bolt connection. This structure not only simplifies the installation process, but also maintains the tightness between wallboards in a fire, preventing high-temperature gas from penetrating through the joints, and improving the reliability of the overall fire-resistant system.

[0034] Working principle: when a fire occurs, the nano fireproof coating 7 of the fireproof decorative panel 1 first blocks direct contact with the flame, and the metal foil layer 8 reflects the radiant heat; the rock wool core layer 3 delays heat transfer through the thermal insulation properties of inorganic fibers; the composite structure of the reinforcing layer and the substrate layer 5 further disperses thermal stress, and the intumescent fireproof sealant 12 expands to fill the gap at high temperature, ultimately forming a multi-layered cooperative fireproof system to ensure that the wallboard maintains structural integrity and thermal insulation performance for ≥2 hours.

[0035] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in other forms, and any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields with equivalent changes, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application without departing from the technical scheme of the present application still falls within the protection scope of the present application.

Claims

1. A rock wool sandwich fire-resistant wall panel, comprising a rock wool core layer (3), characterized in that: It also includes a fire-resistant adhesive (6), on both sides of the rock wool core layer (3) a first reinforcing layer (2) and a second reinforcing layer (4) are respectively bonded by the fire-resistant adhesive (6), a fireproof decorative panel (1) is provided on the other side of the first reinforcing layer (2), the outer surface of the fireproof decorative panel (1) is coated with a nano fireproof coating (7), and a substrate layer (5) is provided on the other side of the second reinforcing layer (4).

2. The rock wool sandwich fire-resistant wall panel according to claim 1, characterized in that: The first reinforcing layer (2) and the second reinforcing layer (4) are both magnesium oxide board or calcium silicate board, and the fire-resistant adhesive (6) is a phosphate-based inorganic adhesive.

3. The rock wool sandwich fire-resistant wall panel according to claim 1, characterized in that: The substrate layer (5) is a flame-retardant oriented strand board. The side of the substrate layer (5) facing the second reinforcing layer (4) has a plurality of staggered strip grooves (11). The strip grooves (11) are filled with an intumescent fireproof sealant (12).

4. The rock wool sandwich fire-resistant wall panel according to claim 1, characterized in that: A metal foil layer (8) is provided between the fireproof decorative panel (1) and the first reinforcing layer (2). The metal foil layer (8) is aluminum foil or copper foil. The metal foil layer (8) is fixed to the fireproof decorative panel (1) and the second reinforcing layer (4) by a high-temperature resistant adhesive.

5. The rock wool sandwich fire-resistant wall panel according to claim 1, characterized in that: The nano fireproof coating (7) is made of nano alumina, silica sol and flame retardant.

6. The rock wool sandwich fire-resistant wall panel according to claim 1, characterized in that: The substrate layer (5) is provided with a tenon and mortise connection structure on its side. The tenon and mortise connection structure includes a tenon (10) fixedly connected to one side of the substrate layer (5) and a groove (9) opened on the other side of the substrate layer (5). There are multiple tenons (10) and grooves (9) and they are arranged in a linear array along the length direction of the substrate layer (5).

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