Fireproof and flame-retardant aluminum composite panel

Abstract

The application discloses a fireproof and flame-retardant aluminum composite plate and relates to the technical field of composite plates. The aluminum plate body comprises an upper panel, a lower panel and a core plate. The core plate comprises a core body and fireproof bodies fixed on both sides of the core body. The fireproof bodies comprise frame plates and flame-retardant blocks. The flame-retardant blocks are capsule structures and are provided with two layers, including a hard shell and a soft composite body. The hard shell is used for providing structural rigid support for the aluminum plate body and forms a stable grid with the frame plate. The soft composite body is located inside the hard shell and is in a solid gel state in an initial state. After phase change at high temperature, the soft composite body forms a continuous fireproof layer with the frame plate, thereby improving the fireproof and flame-retardant performance. The aluminum composite plate can realize the technical effects of improving structural strength, improving fireproof performance, reducing fatigue risk of locking mode, improving connection stability between composite plates and the like.

Description

Technical Field

[0001] This utility model relates to the field of composite panel technology, and in particular to a fireproof and flame-retardant aluminum composite panel. Background Technology

[0002] Fire-resistant and flame-retardant aluminum composite panels are a new type of building material composed of two layers of aluminum alloy panels and an inorganic mineral core material in the middle. Due to their good fire resistance, environmental protection characteristics and multi-functionality, they are widely used in the construction field, such as the exterior wall construction of landmark buildings like the Guangzhou Tower and Changzhou Cultural Square, and the wall decoration of public facilities. They have now become a key material in modern buildings for ensuring safety and promoting green development.

[0003] Existing methods typically involve adding flame-retardant blocks inside composite panels to optimize and improve their fire-retardant performance. However, traditional flame-retardant blocks are mainly composed of silicate inorganic fire-retardant sealant, which undergoes phase change and softens at ultra-high temperatures, failing to form a continuous fire barrier. Furthermore, the outer frame panels are primarily made of fiber gypsum board, which has limited strength at high temperatures and cannot provide sufficient structural support. When the temperature is too high, the fiber gypsum board is prone to embrittlement or deformation, reducing the bonding force with the flame-retardant blocks and creating heat convection channels, thus weakening the overall fire resistance and making it unable to effectively prevent the spread of fire in extreme scenarios such as chemical fires. In addition, traditional connection structures mainly rely on springs or snap-fit ​​methods to lock the composite panels together, which poses a risk of mechanical fatigue, and point contact leads to a high wear rate, reducing service life and thus reducing the fire-retardant effect. Utility Model Content

[0004] This application provides a fire-resistant and flame-retardant aluminum composite panel, which solves the technical problems of limited structural strength, reduced fire resistance, high fatigue risk of locking method, and reduced connection stability between composite panels in the prior art, and achieves the technical effects of improved structural strength, improved fire resistance, reduced fatigue risk of locking method, and improved connection stability between composite panels.

[0005] This application provides a fireproof and flame-retardant aluminum composite panel, including a panel body, the panel body including an upper panel, a lower panel and a core panel, the core panel including a core and fireproof elements fixed on both sides of the core, the fireproof elements including a frame plate and flame-retardant blocks;

[0006] The flame-retardant block has a capsule structure with two layers, including a rigid shell and a soft composite. The rigid shell provides structural rigidity support for the plate and forms a stable grid with the frame plate. The soft composite is located inside the rigid shell and is initially in a solid gel state. It is used to form a continuous fireproof layer with the frame plate after a high-temperature phase change, thereby improving the fire-retardant performance.

[0007] Furthermore, the frame plate is made of fiber gypsum and flexible polymer, which is used to soften slightly at high temperatures, enhance the adhesion to the flame-retardant block, and at high temperatures, after the soft composite melts and expands, the hard shell breaks, the soft composite flows and fills the pores of the frame plate, thereby blocking the heat convection channels, and combining with the soft composite to form a dense fireproof sealing layer that adapts to the fire.

[0008] Furthermore, the soft composite material is a composite phase change material, including a paraffin-based matrix, ceramic nanoparticles, flame retardant synergists, and viscosity modifiers.

[0009] Furthermore, a fixing block is fixed to the bottom of the plate, and the fixing block is an isosceles trapezoidal structure.

[0010] Furthermore, a position groove is provided on the top of the plate. The position groove has a trapezoidal structure and is used to cooperate with the fixing block to fix the position between the two plates.

[0011] Furthermore, the two sides of the position groove are symmetrically provided with sliding grooves, and the sliding grooves are inclined downward at a 15° angle to the horizontal line; a locking block is slidably connected inside the sliding groove, and the locking block is a semi-arc hook structure.

[0012] Furthermore, the locking block slides downwards under its own initial weight, and the top of its arc-shaped surface does not extend beyond the groove.

[0013] Furthermore, the fixing block has symmetrical fixing grooves on both sides. The fixing grooves are hook structures used to cooperate with the locking block. When the two plates are fixedly installed, the fixing block at the bottom of the upper plate is inserted into the position groove of the lower plate, so that the locking block slides into the fixing groove under the guidance of the inclined surface of the fixing block and its own gravity to achieve position locking, thereby realizing the fixed connection between the two plates.

[0014] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0015] By improving the structural material of the flame-retardant block, a "self-healing" fireproof layer is formed, improving fire resistance. The aluminum plate body is self-lockingly connected by fixing blocks and locking blocks, making installation simple and stable, reducing wear and fatigue risks, improving safety, and achieving a dual improvement in structural and fire resistance performance. It effectively solves the technical problems of limited structural strength, reduced fire resistance, high fatigue risk of locking method, and reduced connection stability between composite plates in the existing technology, and achieves the technical effects of improved structural strength, improved fire resistance, reduced fatigue risk of locking method, and improved connection stability between composite plates. Attached Figure Description

[0016] Figure 1 This is a front view of a fireproof and flame-retardant aluminum composite panel according to this utility model.

[0017] Figure 2 This is a longitudinal full sectional view of a fireproof and flame-retardant aluminum composite panel according to this utility model.

[0018] Figure 3 This utility model relates to a fireproof and flame-retardant aluminum composite panel. Figure 2 A magnified view of a portion of point A in the middle.

[0019] Figure 4 This utility model relates to a fireproof and flame-retardant aluminum composite panel. Figure 2 A magnified view of a portion of point B in the middle.

[0020] Figure 5 This is a longitudinal full sectional view of the frame plate and flame-retardant block of a fireproof and flame-retardant aluminum composite panel according to this utility model.

[0021] Figure 6 This is a three-dimensional structural diagram of the frame plate of a fireproof and flame-retardant aluminum composite panel according to this utility model.

[0022] Figure 7 This is a schematic diagram of the overall three-dimensional structure of the annular airbag of a fireproof and flame-retardant aluminum composite panel according to this utility model.

[0023] In the diagram: 100, aluminum plate; 101, position groove; 102, slide groove; 103, locking block; 110, top panel; 120, bottom panel; 130, core board; 131, core body; 132, frame plate; 133, flame retardant block; 1331, rigid shell; 1332, flexible composite material; 140, fixing block; 141, fixing groove. Detailed Implementation

[0024] To facilitate understanding of this utility model, a more comprehensive description of this application will be given below with reference to the accompanying drawings, which show preferred embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to enable a more thorough and complete understanding of the disclosure of this utility model.

[0025] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Please see Figure 1 This is a front view of a fire-resistant and flame-retardant aluminum composite panel according to the present invention. The fire-resistant and flame-retardant aluminum composite panel of this application improves the structure and material of the flame-retardant block 133 to form a "self-healing" fireproof layer, thereby improving fire resistance. The aluminum plate body 100 is self-lockingly connected to the locking block 103 through the fixing block 140, which is simple and stable, reduces wear and fatigue risks, improves safety, and achieves a dual improvement in structure and fire resistance. It achieves the technical effects of improved structural strength, improved fire resistance, reduced fatigue risk of the locking method, and improved connection stability between composite panels.

[0028] Example 1: As Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, this application discloses a fireproof and flame-retardant aluminum composite panel, which includes an aluminum plate body 100. The aluminum plate body 100 includes an upper panel 110, a lower panel 120 and a core plate 130. The core plate 130 includes a core 131 and fireproof bodies fixed on both sides of the core 131. The fireproof body includes a frame plate 132 and a flame-retardant block 133.

[0029] The flame-retardant block 133 has a capsule structure with two layers, including a rigid shell 1331 and a soft composite 1332. The rigid shell 1331 provides structural rigidity support for the aluminum plate 100 and forms a stable grid with the frame plate 132. The soft composite 1332 is located inside the rigid shell 1331 and is initially in a solid gel state. It is used to form a continuous fireproof layer with the frame plate 132 after a high-temperature phase change, thereby improving the fire-retardant performance.

[0030] The frame plate 132 is made of fiber gypsum and flexible polymer, which is used to soften slightly at high temperature, enhance the adhesion to the flame retardant block 133, and at high temperature, after the soft composite 1332 melts and expands, the hard shell 1331 cracks, the soft composite 1332 flows and fills the pores of the frame plate 132, thereby blocking the heat convection channel, and combining with the soft composite 1332 to form a dense fireproof sealing layer that adapts to the fire.

[0031] The soft composite 1332 is made of composite phase change material, including a paraffin-based matrix, ceramic nanoparticles, flame retardant synergists and viscosity modifiers.

[0032] By setting a rigid shell 1331 to provide structural support at room temperature, a stable grid is formed with the adjusted frame plate 132 with moderate softness and hardness, ensuring the stability and strength of the aluminum composite panel in daily use.

[0033] The paraffin-based matrix (high-carbon alkanes) is the main carrier for the phase change of the soft composite 1332, used to absorb heat and melt, achieving heat absorption and cooling; the ceramic nanoparticles (modified silica nanospheres) are used to enhance thermal conductivity, accelerate heat transfer to the phase change material, increase viscosity, and control flow rate; the flame retardant synergist (ammonium polyphosphate coating layer) is used to catalyze carbonization, promoting char formation at high temperatures to form an inflatable fireproof layer; the flow regulator (organosilicon resin prepolymer) is used to adjust melt viscosity, ensuring slow flow at high temperatures and preventing loss; all of these are existing technologies and will not be described in detail here.

[0034] The working principle of the cooperation mechanism between the inner core (i.e., the soft composite 1332) of the flame-retardant block 133 and the frame plate 132 is as follows: In the early stage of the fire (temperature reaches 300-500℃), the soft composite 1332 melts and expands, filling the gaps between adjacent flame-retardant blocks 133 and blocking the heat convection channels; in the middle stage of the fire (temperature reaches 500-800℃), the organosilicon resin cross-links into carbon, which combines with ceramic nanoparticles to form a honeycomb ceramic skeleton, encapsulating the molten paraffin; in the peak stage of the fire (temperature greater than 800℃), the paraffin vaporizes and absorbs heat, and the carbon-ceramic layer expands and covers the back of the aluminum alloy panel (i.e., the upper panel 110 and the lower panel 120), which can delay the melting of the aluminum plate (melting point 660℃), thereby improving the overall fireproof and flame-retardant effect of the aluminum composite panel.

[0035] Preferably, in order to improve the fixing stability between the aluminum plates 100, such as Figures 2-4 and Figure 7 As shown, a fixing block 140 is fixed to the bottom of the aluminum plate 100, and the fixing block 140 is an isosceles trapezoidal structure.

[0036] The top of the aluminum plate 100 is provided with a position groove 101, which is a trapezoidal structure and is used to cooperate with the fixing block 140 to fix the position between the two aluminum plates 100.

[0037] The position groove 101 has symmetrical sliding grooves 102 on both sides, and the sliding grooves 102 are inclined downward at a 15° angle to the horizontal line; a locking block 103 is slidably connected inside the sliding groove 102, and the locking block 103 has a semi-arc hook structure.

[0038] The locking block 103 is initially in a downward sliding state under its own weight, and the top of its arc-shaped surface does not exceed the groove 102.

[0039] The fixing block 140 has symmetrical fixing grooves 141 on both sides. The fixing grooves 141 are hook structures used to cooperate with the locking block 103. When the two aluminum plates 100 are fixedly installed, the fixing block 140 at the bottom of the upper aluminum plate 100 is inserted into the position groove 101 of the lower aluminum plate 100, so that the locking block 103 slides into the fixing groove 141 under the guidance of the inclined surface of the fixing block 140 and its own gravity to achieve position locking, thereby realizing the fixed connection between the two aluminum plates 100.

[0040] In this embodiment of the application, when the two aluminum plates 100 are actually fixedly installed, it is only necessary to insert the fixing block 140 at the bottom of the upper aluminum plate 100 into the position groove 101 of the lower aluminum plate 100. During the insertion process, the arc-shaped surface of the locking block 103 in the lower aluminum plate 100 is guided by the inclined surface of the fixing block 140 at the bottom of the upper aluminum plate 100, so that the locking block 103 in the lower aluminum plate 100 can retract into the fixing groove 141 during the insertion process. When the fixing block 140 at the bottom of the upper aluminum plate 100 continues to move downward along the fixing groove 141 until it is at the same horizontal line as the locking block 103 in the lower aluminum plate 100, the locking block 103 in the lower aluminum plate 100 can slide into the fixing groove 141 under the action of gravity, thereby locking the positions of the two aluminum plates 100.

[0041] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages:

[0042] By improving the structure and material of the flame-retardant block 133, the inner core of the flame-retardant block 133 (i.e., the soft composite 1332) of the aluminum composite panel melts and expands at high temperatures during a fire, causing the hard shell 1331 to crack. The soft material flows and fills the pores of the frame plate 132, while the frame plate 132 softens and combines with the flowing material to form a dense fireproof sealing layer, achieving a "self-healing" continuous fire barrier and improving the fire resistance limit. The paraffin-based matrix in the soft composite 1332 absorbs a large amount of heat during the melting process, achieving a heat absorption and cooling effect, which helps to slow the spread of fire. At the same time, the activation of the flame-retardant block 133 and the softening process of the frame plate 132 are both adaptive to changes in fire intensity, without the need for an external triggering mechanism, improving the timeliness and effectiveness of fire response. Furthermore, the organic combination of the flame-retardant block 133 as a "point" unit and the frame plate 132 as a "surface" structure achieves efficient use of materials, avoids the separation of simple flame retardancy and support, and reduces long-term use costs.

[0043] By inserting the fixing block 140 of the upper aluminum plate 100 into the position groove 101 of the lower aluminum plate 100, and with the cooperation of the semi-circular locking block 103 and the isosceles trapezoidal fixing block 140, the locking block 103 can automatically slide into the fixing groove 141 under the action of gravity, achieving a stable mechanical self-locking. This effectively prevents the aluminum plates 100 from loosening or falling off, improves the stability of the overall structure, completely eliminates the risk of connection failure caused by spring fatigue, and requires no additional tools or complicated operations, making the installation process of the aluminum plate 100 simpler. At the same time, the line contact design between the locking block 103 and the fixing groove 141 reduces the wear rate and extends the service life compared to point contact. The stable mechanical self-locking structure ensures the safety of the aluminum plate 100 under extreme environments or external forces, improves the stability of the connection, reduces the safety hazards caused by loose connections, and achieves the technical effects of improved structural strength, improved fire resistance, reduced fatigue risk of the locking method, and improved connection stability between composite plates.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. For those skilled in the art, various modifications and variations are possible with this utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fire-resistant and flame-retardant aluminum composite panel, comprising an aluminum plate body (100), wherein the aluminum plate body (100) includes an upper panel (110), a lower panel (120), and a core plate (130), wherein the core plate (130) includes a core body (131) and fireproof bodies fixed on both sides of the core body (131), wherein the fireproof bodies include a frame plate (132) and flame-retardant blocks (133), characterized in that: The flame-retardant block (133) has a capsule structure with two layers, including a hard shell (1331) and a soft composite (1332). The hard shell (1331) provides structural rigidity support for the aluminum plate (100) and forms a stable grid with the frame plate (132). The soft composite (1332) is located inside the hard shell (1331) and is initially solid gel-like. It is used to form a continuous fireproof layer with the frame plate (132) after a high-temperature phase change, thereby improving the fire-retardant performance.

2. The fire-resistant and flame-retardant aluminum composite panel as described in claim 1, characterized in that, The frame plate (132) is made of fiber gypsum and flexible polymer, which is used to soften slightly at high temperature to enhance the adhesion with the flame retardant block (133). At high temperature, after the soft composite (1332) melts and expands, the hard shell (1331) cracks, the soft composite (1332) flows and fills the pores of the frame plate (132), thereby blocking the heat convection channel and combining with the soft composite (1332) to form a dense fireproof sealing layer that adapts to the fire.

3. The fire-resistant and flame-retardant aluminum composite panel as described in claim 2, characterized in that, The soft composite (1332) is made of composite phase change material, including a paraffin-based matrix, ceramic nanoparticles, flame retardant synergists and viscosity modifiers.

4. The fire-resistant and flame-retardant aluminum composite panel as described in claim 1, characterized in that, The bottom of the aluminum plate (100) is fixed with a fixing block (140), which is an isosceles trapezoidal structure.

5. The fire-resistant and flame-retardant aluminum composite panel as described in claim 4, characterized in that, The top of the aluminum plate (100) is provided with a position groove (101), which is a trapezoidal structure and is used to cooperate with the fixing block (140) to fix the position between the two aluminum plates (100).

6. The fire-resistant and flame-retardant aluminum composite panel as described in claim 5, characterized in that, The position groove (101) has symmetrical sliding grooves (102) on both sides, and the sliding grooves (102) are inclined downward at a 15° angle to the horizontal line; a locking block (103) is slidably connected inside the sliding groove (102), and the locking block (103) is a semi-arc hook structure.

7. The fire-resistant and flame-retardant aluminum composite panel as described in claim 6, characterized in that, The locking block (103) is in a downward sliding state under its own initial gravity and the top of its arc surface does not exceed the groove (102).

8. The fire-resistant and flame-retardant aluminum composite panel as described in claim 7, characterized in that, The fixing block (140) has symmetrical fixing grooves (141) on both sides. The fixing grooves (141) are hook structures used to cooperate with the locking block (103). When the two aluminum plates (100) are fixedly installed, the fixing block (140) at the bottom of the upper aluminum plate (100) is inserted into the position groove (101) of the lower aluminum plate (100), so that the locking block (103) slides into the fixing groove (141) under the guidance of the inclined surface of the fixing block (140) and its own gravity to achieve position locking, thereby realizing the fixed connection between the two aluminum plates (100).

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