Foam board with self-adhesive function

Abstract

The utility model provides a kind of foam board with self-adhesive function belongs to foam board technical field, including foam substrate, self-adhesive layer is equipped in foam substrate below, and self-adhesive layer is connected with foam substrate by first combination layer;Protective layer is equipped in foam substrate top, and protective layer is connected with foam substrate by second combination layer;Protective layer includes fire -retardant layer and sealing layer, and fire -retardant layer top is equipped with fire -retardant band;Sealing layer is equipped with air hole, and expansion column is equipped in air hole, decorative plate is equipped in protective layer top, and buffer layer is equipped between protective layer and decorative plate;Buffer layer includes two groups of outer plate and inner plate, and two groups of outer plate are located inner plate both sides.The device is matched with the expansion column in the air hole on sealing layer, when environmental humidity changes, water vapor enters through air hole;At this time, the expansion column made of cylindrical modified wood pulp fiber bundle will absorb water vapor and expand, and then a certain degree of air hole is blocked, to play the dual effect of humidity and sealing.

Description

Technical Field

[0001] This utility model belongs to the field of foam board technology, and more specifically, it relates to a foam board with self-adhesive function. Background Technology

[0002] In the fields of building decoration and packaging protection, foam boards are a commonly used material, widely applied in wall decoration and product packaging to provide insulation and cushioning. However, in some climates, significant temperature differences between indoors and outdoors can easily lead to condensation on walls and other surfaces. Condensation not only damages wall decorations but can also seep into the building structure, causing structural damage. Traditional self-adhesive foam boards only provide waterproofing and cannot address condensation caused by temperature variations. Long-term accumulation of condensation can corrode metal components in the building structure, weakening the load-bearing capacity of the walls and posing a potential threat to building structural safety. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a self-adhesive foam board, which solves the technical problem that traditional self-adhesive foam boards only have a single waterproof function and cannot cope with condensation caused by temperature differences.

[0004] The purpose and effect of this utility model of a self-adhesive foam board are achieved by the following specific technical means:

[0005] A self-adhesive foam board includes a foam substrate, a self-adhesive layer below the foam substrate, the self-adhesive layer being connected to the foam substrate via a first bonding layer; a protective layer above the foam substrate, the protective layer being connected to the foam substrate via a second bonding layer; the protective layer includes a flame-retardant layer and a sealing layer, the flame-retardant layer having a flame-retardant strip on top; the sealing layer has vent holes with expansion columns inside the vent holes; a decorative panel is provided above the protective layer; a buffer layer is provided between the protective layer and the decorative panel; the buffer layer includes two sets of outer panels and an inner panel, the two sets of outer panels being located on both sides of the inner panel.

[0006] According to a preferred embodiment, the foam substrate is made of polyurethane foam; the self-adhesive layer is an acrylic pressure-sensitive adhesive layer, and a protective film is provided on the self-adhesive layer.

[0007] According to a preferred embodiment, the foam substrate is provided with a plurality of support holes, which are distributed in a grid pattern, and support rods are inserted into the support holes.

[0008] According to a preferred embodiment, the flame-retardant layer is an aluminum hydroxide layer, and the flame-retardant strip has a wavy raised structure.

[0009] According to a preferred embodiment, the expansion column is a cylindrical modified wood pulp fiber bundle, and each end of the vent is provided with a one-way breathable membrane, which is made of polytetrafluoroethylene porous material.

[0010] According to a preferred embodiment, both the first bonding layer and the second bonding layer are ethylene-vinyl acetate copolymer hot melt adhesive films.

[0011] According to a preferred embodiment, the outer panel is an ABS plastic sheet, the inner panel is a silicone elastic sheet, one set of the outer panels is provided with a fastening groove, the decorative panel is provided with a buckle, the buckle is engaged in the fastening groove, and the other set of outer panels is connected to the protective layer.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model utilizes the vents on the sealing layer in conjunction with the internal expansion columns. When the ambient humidity changes, moisture enters through the vents. At this time, the expansion columns, made of cylindrical modified wood pulp fiber bundles, absorb the moisture and expand, thus partially blocking the vents and achieving both humidity regulation and sealing. The foam board has grid-like distribution of support holes with interdged support rods, enhancing its overall load-bearing capacity and stability. This prevents deformation and damage during subsequent wall decoration or item packaging, improving the device's durability in practical use.

[0014] 2. When using this device, users can enhance the fire resistance of the foam board through the flame-retardant layer and flame-retardant strip in the protective layer, reducing fire hazards in building decoration and other scenarios and improving the safety of the device. Then, through the cooperation of the ABS plastic sheet, silicone elastic sheet, and the grooves and buckles in the buffer layer, the device can absorb impact force using the elasticity of the silicone elastic sheet, while the ABS plastic sheet enhances structural stability, protecting the decorative board from damage or the packaged items from collision, providing reliable protection for the user and improving the device's protective capability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the assembled structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0017] Figure 3 yes Figure 2 Enlarged view of region a in the middle;

[0018] Figure 4 This is a schematic diagram of the structure of the protective layer of this utility model.

[0019] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0020] 11. Foam substrate; 111. Support hole; 112. Support rod; 12. Self-adhesive layer; 121. Protective film; 13. First bonding layer; 14. Protective layer; 141. Flame retardant layer; 142. Sealing layer; 143. Flame retardant strip; 144. Ventilation hole; 145. Expansion column; 146. One-way breathable membrane; 15. Decorative panel; 151. Buckle; 16. Buffer layer; 161. Outer panel; 162. Inner panel; 163. Clip groove; 15. Second bonding layer. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model.

[0022] Example:

[0023] like Figures 1 to 4As shown, this utility model provides a self-adhesive foam board, including a foam substrate 11, a self-adhesive layer 12 below the foam substrate 11, and the self-adhesive layer 12 connected to the foam substrate 11 through a first bonding layer 13. The self-adhesive layer 12 and the first bonding layer 13 enable the foam board to have a self-adhesive function, making it convenient for users to stick the foam board to the target location. The first bonding layer 13 enhances the connection stability between the self-adhesive layer 12 and the foam substrate 11, ensuring that the self-adhesive layer 12 does not detach from the foam substrate 11 during use. A protective layer 14 is provided above the foam substrate 11, and the protective layer 14 is connected to the foam substrate 11 through a second bonding layer 15. The protective layer 14 and the second bonding layer 15 protect the foam substrate 11. The second bonding layer 15 ensures the bond between the protective layer 14 and the foam substrate 11, allowing the protective layer 14 to better perform its functions, such as protecting the foam substrate 11 from external physical damage and enhancing the overall structural stability. The protective layer 14 includes a flame-retardant layer 141 and a sealing layer 142. A flame-retardant strip 143 is provided on the top of the flame-retardant layer 141. The flame-retardant layer 141 and the flame-retardant strip 143 enhance the fire resistance of the foam board. The aluminum hydroxide layer in the flame-retardant layer 141 and the corrugated flame-retardant strip 143, made of aluminum hydroxide flame-retardant particles and a silicone substrate, decompose and absorb heat when exposed to a fire source, thus acting as a flame retardant, delaying the spread of fire, and providing fire safety for users. The sealing layer 142 has ventilation holes 144, with expansion columns 145 inside each ventilation hole 144. A decorative panel 16 is provided above the protective layer 14, and a buffer layer 17 is provided between the protective layer 14 and the decorative panel 16. This arrangement enables humidity regulation and buffer protection. The vents 144 on the sealing layer 142, in conjunction with the expansion columns 145, allow moisture to enter through the vents 144 when the ambient humidity changes. The expansion columns 145 absorb the moisture and expand, regulating humidity and preventing excessive moisture intrusion. The buffer layer 17 acts as a buffer when the decorative panel 16 is impacted by external forces, protecting the decorative panel 16 and the foam board from damage. The buffer layer 17 includes two sets of outer panels 171 and inner panels 172, with the two sets of outer panels 171 located on both sides of the inner panel 172. The arrangement of the outer panels 171 and inner panels 172 enhances the buffering effect by utilizing the rigidity of the outer panels 171 and the elasticity of the inner panels 172. The outer panels 171 provide a certain structural strength, while the inner panels 172 have elastic deformation capabilities. When impacted, the inner panels 172 absorb the impact energy, and the outer panels 171 limit excessive deformation of the inner panels 172, jointly protecting the decorative panel 16 and the foam board.

[0024] like Figure 2 , 4As shown, the foam substrate 11 is made of polyurethane foam; the self-adhesive layer 12 is an acrylic pressure-sensitive adhesive layer, and a protective film 121 is provided on the self-adhesive layer 12. Through the arrangement of the polyurethane foam substrate 11, the acrylic pressure-sensitive adhesive self-adhesive layer 12, and the protective film 121, the heat insulation and cushioning properties of the polyurethane foam can be utilized, the acrylic pressure-sensitive adhesive provides reliable self-adhesion, and the protective film 121 protects the self-adhesive layer 12 before use, preventing it from being contaminated or prematurely adhered, ensuring that the self-adhesive function functions normally when needed.

[0025] The flame-retardant layer 141 is an aluminum hydroxide layer, and the flame-retardant strip 143 has a wavy raised structure. By setting the flame-retardant layer 141 of aluminum hydroxide and the flame-retardant strip 143, the flame-retardant properties of aluminum hydroxide can be utilized to give the flame-retardant layer 141 good fire resistance and mechanical properties. The wavy raised structure of the flame-retardant strip 143 increases the contact area with air, further improving the flame-retardant effect.

[0026] like Figure 2 , 3 As shown in Figure 4, the expansion column 145 is a cylindrical modified wood pulp fiber bundle, and both ends of the vent 144 are provided with a one-way breathable membrane 146, which is made of polytetrafluoroethylene porous material. Through the arrangement of the cylindrical modified wood pulp fiber bundle expansion column 145 and the polytetrafluoroethylene porous one-way breathable membrane 146, the expansion column 145 can absorb or release moisture according to humidity changes, regulating the internal humidity. The one-way breathable membrane 146 allows internal moisture to escape while preventing external moisture from entering, ensuring the inside of the foam board remains dry, and maintaining a certain degree of breathability to address problems such as condensation caused by humidity changes.

[0027] Both the first bonding layer 13 and the second bonding layer 15 are ethylene-vinyl acetate copolymer hot melt adhesive films. By using the ethylene-vinyl acetate copolymer hot melt adhesive film as a bonding layer, it can bond to the foam substrate 11, the self-adhesive layer 12, and the protective layer 14 after heating and melting, and form a stable connection structure after cooling, ensuring high bonding strength between the layers and guaranteeing the stability and reliability of the overall structure of the foam board.

[0028] The outer panel 171 is made of ABS plastic, and the inner panel 172 is made of silicone elastic material. One set of outer panels 171 has a groove 173, and the decorative panel 16 has a clip 161, which is engaged within the groove 173. The other set of outer panels 171 is connected to the protective layer 14. The arrangement of the ABS plastic outer panel 171, the silicone elastic inner panel 172, the groove 173, and the clip 161 facilitates the installation and fixation of the decorative panel 16. Simultaneously, the different characteristics of the outer panel 171 and the inner panel 172 enhance the cushioning function. The ABS plastic outer panel 171 provides structural support, the silicone elastic inner panel 172 buffers external impacts, and the cooperation of the groove 173 and the clip 161 makes the installation of the decorative panel 16 more convenient, facilitating operation and maintenance in actual use.

[0029] The specific usage and function of this embodiment are as follows:

[0030] In use, first peel off the protective film 121 on the self-adhesive layer 12. Utilizing the properties of the self-adhesive layer 12 as an acrylic pressure-sensitive adhesive layer, adhere the foam board to the desired location. The first bonding layer 13 uses an ethylene-vinyl acetate copolymer hot melt adhesive film to ensure the connection between the self-adhesive layer 12 and the polyurethane foam substrate 11, guaranteeing the stability of the adhesion. The foam substrate 11 has support holes 111 arranged in a grid pattern and perforated with support rods 112, enhancing the overall load-bearing capacity and stability. It can withstand the weight of decorative materials during wall decoration and resist transportation bumps and pressure during packaging, preventing deformation and damage. The protective layer 14 is connected to the foam substrate 11 through the second bonding layer 15, an ethylene-vinyl acetate copolymer hot melt adhesive film, providing protection. The flame-retardant layer 141 is an aluminum hydroxide layer, and the top flame-retardant strip 143 has a wavy raised structure, which slows the spread of fire and ensures safety when exposed to flame. The cylindrical modified wood pulp fiber bundle expansion columns 145 within the vent holes 144 on the sealing layer 142, combined with the one-way breathable membranes 146 made of porous polytetrafluoroethylene material at both ends, regulate humidity, allowing internal moisture to escape while blocking external moisture from entering, preventing condensation and dampness. The buffer layer 17 between the decorative panel 16 and the protective layer 14 consists of an outer ABS plastic panel 171 on both sides and an inner silicone elastic panel 172 in the middle. The outer panel 171 provides structural strength, while the inner panel 172 cushions external forces with its elasticity. The decorative panel 16 is connected to the outer panel 171 via clips 161 and grooves 173, facilitating installation while enhancing the cushioning effect, protecting the decorative panel 16 and the foam board as a whole, and improving performance and lifespan.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments.

Claims

1. A self-adhesive foam board, comprising a foam substrate (11), characterized in that: A self-adhesive layer (12) is provided below the foam substrate (11), and the self-adhesive layer (12) is connected to the foam substrate (11) through a first bonding layer (13); a protective layer (14) is provided above the foam substrate (11), and the protective layer (14) is connected to the foam substrate (11) through a second bonding layer (15); the protective layer (14) includes a flame-retardant layer (141) and a sealing layer (142), and the flame-retardant layer (141) has a sealing layer (142) on top. The sealing layer (142) is provided with a vent hole (144), and an expansion column (145) is provided in the vent hole (144). A decorative plate (16) is provided above the protective layer (14), and a buffer layer (17) is provided between the protective layer (14) and the decorative plate (16). The buffer layer (17) includes two sets of outer plates (171) and inner plates (172), and the two sets of outer plates (171) are located on both sides of the inner plate (172).

2. The self-adhesive foam board according to claim 1, characterized in that: The foam substrate (11) is made of polyurethane foam; the self-adhesive layer (12) is an acrylic pressure-sensitive adhesive layer, and a protective film (121) is provided on the self-adhesive layer (12).

3. A self-adhesive foam board according to claim 2, characterized in that: The foam substrate (11) is provided with multiple sets of support holes (111), which are distributed in a grid pattern, and support rods (112) are inserted into the support holes (111).

4. A self-adhesive foam board according to claim 3, characterized in that: The flame-retardant layer (141) is an aluminum hydroxide layer, and the flame-retardant strip (143) has a wavy raised structure.

5. A self-adhesive foam board according to claim 4, characterized in that: The expansion column (145) is a cylindrical modified wood pulp fiber bundle, and both ends of the vent (144) are provided with a one-way breathable membrane (146), which is made of polytetrafluoroethylene porous material.

6. A self-adhesive foam board according to claim 1, characterized in that: Both the first bonding layer (13) and the second bonding layer (15) are ethylene-vinyl acetate copolymer hot melt adhesive films.

7. A self-adhesive foam board according to claim 1, characterized in that: The outer panel (171) is an ABS plastic sheet, and the inner panel (172) is a silicone elastic sheet. One set of the outer panels (171) is provided with a buckle groove (173), and the decorative panel (16) is provided with a buckle (161). The buckle (161) is engaged in the buckle groove (173), and the other set of the outer panels (171) is connected to the protective layer (14).

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