Impact-resistant sandwich structure for styrene decorative panels

Abstract

This utility model discloses an impact-resistant sandwich structure for styrene decorative panels, comprising an impact-resistant core board installed between styrene surface layers. The impact-resistant core board includes modified polystyrene foam boards and polyurethane foam boards installed between the modified polystyrene foam boards. The polyurethane foam boards include thermoplastic skeletons. Connecting grooves are formed on the surface of the modified polystyrene foam boards. The outer side of the thermoplastic skeleton is inserted into the connecting grooves, and polyurethane filling foam is filled between the thermoplastic skeletons. Through the design of the impact-resistant core board, the impact resistance is enhanced by the modified polystyrene foam boards and polyurethane foam boards during use, and the support capacity of the board is enhanced by the thermoplastic skeleton, reducing deformation. Furthermore, the engagement of the connecting grooves strengthens the connection between the modified polystyrene foam boards and the polyurethane foam boards.

Description

Technical Field

[0001] This utility model belongs to the field of styrene board technology, specifically relating to an impact-resistant sandwich structure for styrene decorative boards. Background Technology

[0002] Polystyrene decorative board is a new type of material made by foaming polystyrene particles to form a core, and then laminating the surface with a film. This material is characterized by its stiffness, lightness, resistance to deterioration, and ease of processing. It can also be directly screen-printed, painted, laminated with adhesive-backed graphics, and spray-painted.

[0003] Existing styrene decorative panels typically use an internal sandwich structure to enhance the strength of the panels. However, the existing sandwich panels provide relatively weak reinforcement during installation and use, and are easily damaged by external impacts. Therefore, it is necessary to design an impact-resistant sandwich structure for styrene decorative panels to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a styrene decorative panel impact-resistant sandwich structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a styrene decorative panel impact-resistant sandwich structure, comprising an impact-resistant core board installed between styrene surface layers, the impact-resistant core board comprising a modified polystyrene foam board and a polyurethane foam board installed between the modified polystyrene foam boards, the polyurethane foam board comprising a thermoplastic skeleton, the surface of the modified polystyrene foam board having a connecting groove, the outer side of the thermoplastic skeleton being inserted into the connecting groove, and polyurethane filling foam filling the spaces between the thermoplastic skeletons.

[0006] Preferably, the thermoplastic skeleton is honeycomb shaped, the modified polystyrene foam board is engaged with the thermoplastic skeleton through a connecting slot, and the modified polystyrene foam board is pressed on the polyurethane filling foam inside the thermoplastic skeleton.

[0007] Preferably, the styrene surface layer and the modified polystyrene foam board have laser-etched microgrooves on their surfaces, and the inner side of the laser-etched microgrooves is filled with a connecting filling resin. The styrene surface layer and the modified polystyrene foam board are connected by the laser-etched microgrooves and the connecting filling resin.

[0008] Preferably, carbon nanotube epoxy resin adhesive is provided on the surfaces of the styrene surface layer and the modified polystyrene foam board, as well as on the surfaces of the polyurethane foam board and the modified polystyrene foam board.

[0009] Preferably, the thermoplastic skeleton is a 3D printed PETG support skeleton, and the thermoplastic skeleton and the connecting slot are interlocked and fixed with the aid of adhesive.

[0010] Preferably, the laser-etched microgrooves are equidistantly arranged on the surface of the modified polystyrene foam board, and the connecting filling resin is filled into the laser-etched microgrooves by hot melting.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. The impact-resistant core board is designed to enhance impact resistance during use by using modified polystyrene foam board and polyurethane foam board, and the thermoplastic skeleton enhances the support of the board to reduce deformation. The connecting slots further strengthen the connection between the modified polystyrene foam board and polyurethane foam board.

[0013] 2. The impact-resistant core board is designed and installed between the styrene surface layers during use. This effectively enhances the impact resistance of the styrene surface layers. In addition, the laser-etched microgrooves and the interlocking of the connecting resin strengthen the connection between the impact-resistant core board and the styrene surface layers, thereby improving the interfacial shear strength. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the impact-resistant core plate structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention;

[0017] In the diagram: 1. Styrene surface layer; 2. Impact-resistant core board; 3. Modified polystyrene foam board; 4. Polyurethane foam board; 5. Thermoplastic skeleton; 6. Polyurethane filling foam; 7. Connecting slot; 8. Laser-etched microgrooves; 9. Connecting filling resin. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0019] Please see Figures 1 to 3This utility model provides a technical solution: a styrene decorative board impact-resistant sandwich structure, including an impact-resistant core board 2 installed between styrene surface layers 1. The impact-resistant core board 2 includes a modified polystyrene foam board 3 and a polyurethane foam board 4 installed between the modified polystyrene foam boards 3. Impact stress is dispersed by a density gradient. The polyurethane foam board 4 includes a thermoplastic skeleton 5. A connecting groove 7 is formed on the surface of the modified polystyrene foam board 3. The outer side of the thermoplastic skeleton 5 is inserted into the connecting groove 7. Polyurethane filling foam 6 is filled between the thermoplastic skeleton 5. The polyurethane filling foam 6 is limited and installed by the thermoplastic skeleton 5, and then engaged by the connecting groove 7 on the outer side of the thermoplastic skeleton 5 to secure the modified polystyrene foam board 3 and the polyurethane foam board 4. The thermoplastic skeleton 5 is honeycomb shaped, and the modified polystyrene foam board 3 is engaged with the thermoplastic skeleton 5 through the connecting slot 7. The modified polystyrene foam board 3 is pressed on the polyurethane filling foam 6 inside the thermoplastic skeleton 5 to ensure better support capacity of the thermoplastic skeleton 5. Carbon nanotube epoxy resin adhesive is applied to the surfaces of the styrene surface layer 1 and the modified polystyrene foam board 3, as well as the surfaces of the polyurethane foam board 4 and the modified polystyrene foam board 3, to ensure more stable connection during use. The thermoplastic skeleton 5 is set as a 3D printed PETG support skeleton, and the thermoplastic skeleton 5 is engaged with the connecting slot 7 and fixed with adhesive to ensure better support capacity of the thermoplastic skeleton 5 during use.

[0020] As can be seen from the above description, the present invention has the following beneficial effects: when in use, the modified polystyrene foam board 3 and polyurethane foam board 4 of the impact-resistant core board 2 enhance the impact resistance, and the thermoplastic skeleton 5 enhances the support capacity of the board, reducing the phenomenon of deformation. In addition, the connection between the modified polystyrene foam board 3 and polyurethane foam board 4 is strengthened by the locking of the connecting slot 7. Example

[0021] Please see Figures 1 to 3 As shown, based on Embodiment 1, this utility model provides a technical solution: laser-etched microgrooves 8 are formed on the surfaces of the styrene surface layer 1 and the modified polystyrene foam board 3. The inner side of the laser-etched microgrooves 8 is filled with connecting filling resin 9. The styrene surface layer 1 and the modified polystyrene foam board 3 are connected by the laser-etched microgrooves 8 and the connecting filling resin 9. The mechanical interlocking formed by the laser-etched microgrooves 8 and the connecting filling resin 9 improves the interfacial shear strength. The laser-etched microgrooves 8 are equidistantly arranged on the surface of the modified polystyrene foam board 3, and the connecting filling resin 9 is filled into the laser-etched microgrooves 8 by hot melting. During use, this ensures that the connection between the styrene surface layer 1 and the modified polystyrene foam board 3 is more stable.

[0022] Using the above technical solution, the impact-resistant core board 2 is installed between the styrene surface layers 1 during use, which can effectively enhance the impact resistance of the styrene surface layers 1. In addition, the laser-etched microgrooves 8 and the interlocking of the connecting filling resin 9 strengthen the connection between the impact-resistant core board 2 and the styrene surface layers 1 and improve the interface shear strength.

[0023] The working principle and usage process of this utility model are as follows: During use, the impact stress is dispersed by the density gradient. The polyurethane-filled foam 6 is limited and installed by the thermoplastic skeleton 5. Then, the modified polystyrene foam board 3 and the polyurethane foam board 4 are connected by the connecting slot 7 on the outside of the thermoplastic skeleton 5 and fixed with adhesive. Then, the connecting filling resin 9 is installed on the inside of the modified polystyrene foam board 3. The styrene surface layer 1 is pressed on the modified polystyrene foam board 3 and fixed with carbon nanotube epoxy resin adhesive. The mechanical interlocking formed by the laser-etched microgrooves 8 and the connecting filling resin 9 improves the interfacial shear strength.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A styrene trim panel impact resistant sandwich structure characterized by: The device includes an impact-resistant core board (2) installed between styrene surface layers (1). The impact-resistant core board (2) includes a modified polystyrene foam board (3) and a polyurethane foam board (4) installed between the modified polystyrene foam board (3). The polyurethane foam board (4) includes a thermoplastic skeleton (5). A connecting groove (7) is provided on the surface of the modified polystyrene foam board (3). The outer side of the thermoplastic skeleton (5) is inserted into the connecting groove (7). The space between the thermoplastic skeleton (5) is filled with polyurethane filling foam (6).

2. A shock resistant sandwich structure for styrene decorative sheets according to claim 1, characterized in that: The thermoplastic skeleton (5) is honeycomb shaped, and the modified polystyrene foam board (3) is engaged with the thermoplastic skeleton (5) through the connecting slot (7), and the modified polystyrene foam board (3) is pressed on the polyurethane filling foam (6) inside the thermoplastic skeleton (5).

3. The impact-resistant sandwich structure of styrene decorative plate according to claim 1, characterized in that: Laser-etched microgrooves (8) are formed on the surfaces of the styrene surface layer (1) and the modified polystyrene foam board (3). The inner side of the laser-etched microgrooves (8) is filled with connecting filling resin (9). The styrene surface layer (1) and the modified polystyrene foam board (3) are connected by the laser-etched microgrooves (8) and the connecting filling resin (9).

4. The impact-resistant sandwich structure for styrene decorative sheet according to claim 1, characterized in that: Carbon nanotube epoxy resin adhesive is provided on the surfaces of the styrene surface layer (1) and the modified polystyrene foam board (3), as well as on the surfaces of the polyurethane foam board (4) and the modified polystyrene foam board (3).

5. The impact-resistant sandwich structure for styrene decorative sheet according to claim 1, characterized in that: The thermoplastic skeleton (5) is set as a 3D printed PETG support skeleton, and the thermoplastic skeleton (5) and the connecting slot (7) are interlocked and fixed with the help of adhesive.

6. The impact-resistant sandwich structure of styrene decorative plate according to claim 3, characterized in that: The laser-etched microgrooves (8) are equidistantly arranged on the surface of the modified polystyrene foam board (3), and the connecting filling resin (9) is filled into the laser-etched microgrooves (8) by hot melting.

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