Polymer surface waterproof decorative thermal insulation composite board and forming process thereof

Abstract

The application discloses a polymer surface waterproof decorative thermal insulation composite board and a forming process thereof, and relates to the technical field of thermal insulation boards. The polymer surface waterproof decorative thermal insulation composite board comprises a waterproof outer layer and a connecting inner layer, and a thermal insulation layer is filled between the waterproof outer layer and the connecting inner layer. The longitudinal reduction of the spiral structure can generate an inward tension effect on the corresponding area of the waterproof outer layer and the connecting inner layer through the clamping of two insertion blocks and corresponding insertion slots, so as to resist the longitudinal thermal expansion phenomenon of the area. Meanwhile, the transverse reduction of the spiral structure can generate a center closing pulling force on the surrounding spiral structure through the connecting rods evenly arranged on the side, and the spiral structure with a small peripheral deformation amount is used to resist the spiral structure with a large deformation at the center, so that the effect of force dispersion is achieved. Meanwhile, the connecting rods can generate a center closing pulling force on the surrounding thermal insulation material through the pull rods, so as to further resist the transverse thermal expansion phenomenon of the area.

Description

Technical Field

[0001] This invention relates to the field of insulation board technology, specifically to a polymer waterproof decorative insulation composite board and its molding process. Background Technology

[0002] Thermal insulation composite panels are made of two layers of waterproof color-coated steel plates or other materials as the face panels (waterproof materials can be used as the face panels depending on the usage conditions and requirements), with flame-retardant rigid polyurethane foam injected in the middle. It is recognized worldwide as the best thermal insulation material.

[0003] Insulation composite panels are ubiquitous in people's daily lives and production, used for thermal insulation and shock absorption. However, these panels are relatively soft and prone to damage during normal use. Therefore, choosing high-quality insulation materials is the fundamental solution. Junxuan Integrated Panel (ETB) uses Class A fire-retardant materials and is lightweight with extremely low thermal conductivity. Its installation process involves seven steps, providing wind pressure and earthquake resistance, guaranteeing a service life of over 25 years. While the material plays a crucial role in the quality of the insulation panel, external factors also significantly impact its lifespan.

[0004] 1. Thermal stress, which is the thermal expansion difference caused by uneven heating and large temperature differences on the panel. Thermal stress is one of the main destructive forces of exterior wall insulation boards in high-rise buildings. It causes volume changes in non-structural structures, thus keeping them in a constant state of instability. High-rise buildings receive stronger sunlight, resulting in greater thermal stress and potentially greater deformation. Over time, this can lead to an uneven surface, and the insulation performance of the same board will vary. Simply put, when the insulation board is installed in the area requiring insulation, the heating of the board may not be uniform. Some areas may experience concentrated heating while others receive less heat. This results in the concentrated heating areas bearing a greater burden, inevitably causing the insulation material to absorb heat and expand, while other areas, receiving less heat, expand less or not at all. Over time, this leads to an uneven surface on the insulation board, and the insulation performance will also vary.

[0005] 2. Wind pressure: Generally, insulation boards consist of waterproof outer layers on both sides sandwiching the insulation material in the middle, usually connected by adhesive layers. Strong winds generate thrust (positive wind pressure) and suction (negative wind pressure). This can cause significant damage to the exterior wall insulation boards of high-rise buildings, especially under negative wind pressure. When the adhesion between the layers of the insulation board reaches its limit, it will bulge and expand under the suction force.

[0006] To address the aforementioned issues, there is an urgent need for innovative designs based on the existing polymer-based waterproof decorative insulation composite panels and their molding processes. Summary of the Invention

[0007] The present invention addresses the problem of overly simplistic solutions in existing technologies by providing a significantly different solution. Specifically, the present invention aims to provide a polymer-based waterproof decorative and thermal insulation composite board and its molding process to solve the problems mentioned in the background.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a polymer waterproof decorative thermal insulation composite board, comprising a waterproof outer layer and a connecting inner layer, wherein a thermal insulation layer is filled between the waterproof outer layer and the connecting inner layer, and a spiral structure is uniformly distributed inside the thermal insulation layer, wherein splicing components are provided between the spiral structure and the waterproof outer layer and the connecting inner layer, and a docking component is installed between two adjacent spiral structures.

[0009] Preferably, the upper and lower ends of the spiral structure are respectively bonded to the inner walls of the waterproof outer layer and the connecting inner layer, and the spiral structure is made of heat-shrinkable material.

[0010] Preferably, the docking assembly includes a connecting rod and a pull rod, and the connecting rod is fixedly connected to the protrusions of two adjacent spiral structures, and the pull rods are evenly distributed on the outer wall of the connecting rod.

[0011] Preferably, the connecting rod is arranged parallel to the waterproof outer layer and the connecting inner layer, and the pull rod is perpendicular to the waterproof outer layer and the connecting inner layer.

[0012] Preferably, the splicing component includes slots and inserts, and inserts are fixed at both the upper and lower ends of the spiral structure. Slots are symmetrically opened on the inner surfaces of the waterproof outer layer and the connecting inner layer corresponding to the positions of the upper and lower ends of the spiral structure, and the two inserts at the upper and lower ends of the spiral structure are respectively inserted into the interior of the two slots.

[0013] Preferably, both the slot and the plug are designed with an inverted trapezoidal structure, and the plug is made of rubber.

[0014] A molding process for a polymer waterproof decorative and thermal insulation composite board includes the following steps:

[0015] S1: The heat shrink rod is made into a spiral structure by sequentially going through processes such as heating and softening, thread bending and cooling and shaping, and the insert is fixed to the upper and lower ends of the spiral structure.

[0016] S2: Then, evenly glue and fix the pull rod to the outer wall of the connecting rod, and then fix the two ends of the connecting rod to the protrusions of the two adjacent spiral structures.

[0017] S3: Forcefully insert the two rubber blocks at the top and bottom of the spiral structure into the corresponding slots on the inner surfaces of the waterproof outer layer and the connecting inner layer to achieve the initial connection between the waterproof outer layer and the connecting inner layer;

[0018] S4: Finally, place the connecting frame from the above steps into the mold, and then use the injection molding process to inject the foamed insulation material into the space between the waterproof outer layer and the connecting inner layer in one go. After standing and cooling, it will solidify to form the polymer waterproof decorative insulation composite board.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] Assuming that thermal stress changes occur on the thermal insulation composite board, meaning that a certain area of ​​the board receives more concentrated heat while other areas receive less and more dispersed heat, normally, the area with concentrated heat will absorb more heat and expand more than other areas. Therefore, over time, local bulging will occur. However, in this invention, when thermal stress changes occur, the spiral structure corresponding to the area with concentrated heat will undergo thermal shrinkage after heating. The special spiral shape of the spiral structure will undergo a unique change during thermal shrinkage. During thermal shrinkage, not only will its length shorten, but its width will also change. Simply put, it shrinks proportionally from a large spiral to a smaller one. The small spiral structure, with its longitudinal reduction, creates an inward tension on the waterproof outer layer and the corresponding inner layer through the engagement of two inserts with their corresponding slots. This counteracts the longitudinal thermal expansion in that area. Simultaneously, the lateral reduction of the spiral structure generates a pulling force towards the center through the evenly distributed connecting rods on the sides. This utilizes the smaller deformation of the outer spiral structure to counteract the larger deformation of the central spiral structure, thus achieving a force dispersion effect. At the same time, the connecting rods simultaneously generate a pulling force towards the center on the surrounding insulation material through the pull rods, further counteracting the lateral thermal expansion in that area.

[0021] In addition, following the same principle, when wind pressure generates local negative pressure suction on the waterproof outer layer, the negative pressure suction generated locally will be dispersed because each adjacent spiral structure is stably connected by a connecting rod. Multiple sets of spiral structures around the perimeter will simultaneously counteract the local wind pressure. Furthermore, the cooperation between the insert and the slot will strengthen the connection between the waterproof outer layer and the connecting inner layer, further enhancing the wind pressure resistance. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0023] Figure 2 This is a frontal cross-sectional view of the present invention.

[0024] Figure 3 This is a schematic diagram of the connecting frame structure of the spiral structure of the present invention;

[0025] Figure 4 For the present invention Figure 2 Enlarged structural diagram at point A in the middle.

[0026] In the diagram: 1. Waterproof outer layer; 2. Insulation layer; 3. Connecting inner layer; 4. Spiral structure; 41. Connecting rod; 42. Pull rod; 5. Slot; 6. Insert block. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figure 1-4 The present invention provides a technical solution: a polymer waterproof decorative thermal insulation composite board, comprising a waterproof outer layer 1 and a connecting inner layer 3, wherein a thermal insulation layer 2 is filled between the waterproof outer layer 1 and the connecting inner layer 3, and a spiral structure 4 is uniformly distributed inside the thermal insulation layer 2. A splicing component is provided between the spiral structure 4 and the waterproof outer layer 1 and the connecting inner layer 3, and a docking component is installed between two adjacent spiral structures 4.

[0029] The upper and lower ends of the spiral structure 4 are respectively attached to the inner wall of the waterproof outer layer 1 and the connecting inner layer 3, and the spiral structure 4 is made of heat-shrinkable material.

[0030] The docking assembly includes a connecting rod 41 and a pull rod 42, and the connecting rod 41 is fixedly connected to the protrusions of two adjacent spiral structures 4, and the pull rods 42 are evenly distributed on the outer wall of the connecting rod 41.

[0031] The connecting rod 41 is parallel to the waterproof outer layer 1 and the connecting inner layer 3, and the pull rod 42 is perpendicular to the waterproof outer layer 1 and the connecting inner layer 3.

[0032] The splicing assembly includes slots 5 and inserts 6, and inserts 6 are fixed at both the upper and lower ends of the spiral structure 4. Slots 5 are symmetrically opened on the inner surfaces of the waterproof outer layer 1 and the connecting inner layer 3 corresponding to the upper and lower ends of the spiral structure 4, and the two inserts 6 at the upper and lower ends of the spiral structure 4 are respectively inserted into the two slots 5.

[0033] Both slot 5 and plug 6 have an inverted trapezoidal design, and plug 6 is made of rubber.

[0034] A molding process for a polymer waterproof decorative and thermal insulation composite board includes the following steps:

[0035] S1: The heat shrink rod is made into a spiral structure 4 by sequentially going through processes such as heating and softening, thread bending and cooling and shaping, and the insert 6 is fixed to the upper and lower ends of the spiral structure 4.

[0036] S2: Then, evenly glue and fix the pull rod 42 to the outer wall of the connecting rod 41, and then fix the two ends of the connecting rod 41 to the protrusions of the two adjacent spiral structures 4.

[0037] S3: Forcefully insert the two rubber blocks 6 at the upper and lower ends of the spiral structure 4 into the corresponding slots 5 on the inner surfaces of the waterproof outer layer 1 and the connecting inner layer 3 to achieve the initial connection between the waterproof outer layer 1 and the connecting inner layer 3.

[0038] S4: Finally, place the connecting frame from the above steps into the mold, and then use the injection molding process to inject the foamed insulation material into the space between the waterproof outer layer 1 and the connecting inner layer 3 in one go. After standing and cooling, it will solidify to form the polymer waterproof decorative insulation composite board.

[0039] Working principle: When using this polymer waterproof decorative insulation composite board and its molding process, firstly, the heat shrink rod is made into a spiral structure 4 through heating softening, thread bending and cooling shaping. The inserts 6 are then fixed to the upper and lower ends of the spiral structure 4. Then, the pull rod 42 is evenly glued and fixed to the outer wall of the connecting rod 41. The two ends of the connecting rod 41 are then fixedly connected to the protrusions of the two adjacent spiral structures 4. The two rubber inserts 6 at the upper and lower ends of the spiral structure 4 are forcibly inserted into the corresponding slots 5 on the inner surfaces of the waterproof outer layer 1 and the connecting inner layer 3, thereby achieving the initial connection between the waterproof outer layer 1 and the connecting inner layer 3. Finally, the connecting frame in the above steps is placed in a mold, and the foamed insulation material is injected into the space between the waterproof outer layer 1 and the connecting inner layer 3 at one time using the injection molding process. After standing and cooling, the polymer waterproof decorative insulation composite board is formed.

[0040] Assuming that thermal stress changes occur on the insulation composite board, meaning that a certain area of ​​the insulation board receives more concentrated heat while other areas receive less and more dispersed heat, normally, the area with concentrated heat will absorb more heat and expand more than other areas. Therefore, over time, local bulging will occur. However, in this invention, when thermal stress changes occur, the spiral structure 4 corresponding to the area with concentrated heat will undergo thermal shrinkage after being heated. The special spiral shape of the spiral structure 4 will undergo a unique change during thermal shrinkage. During thermal shrinkage, its length will not only shorten, but its width will also change. Simply put, it will shrink proportionally from a large spiral to a small spiral. The longitudinal reduction of structure 4 will exert an inward tightening effect on the area corresponding to the waterproof outer layer 1 and the connecting inner layer 3 through the engagement of two inserts 6 with the corresponding slots 5, thereby counteracting the longitudinal thermal expansion of this area. At the same time, the lateral reduction of spiral structure 4 will generate a pulling force towards the center of the surrounding spiral structure 4 through the connecting rods 41 evenly arranged on the sides. The spiral structure 4 with smaller deformation on the periphery will counteract the spiral structure 4 with larger deformation at the center, thereby achieving the effect of force dispersion. At the same time, the connecting rods 41 will generate a pulling force towards the center of the surrounding insulation material through the pull rods 42, thereby further counteracting the lateral thermal expansion of this area.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A polymer waterproof decorative thermal insulation composite board, comprising a waterproof outer layer (1) and a connecting inner layer (3), characterized in that: A thermal insulation layer (2) is filled between the waterproof outer layer (1) and the connecting inner layer (3). The foamed thermal insulation material is injected into the space between the waterproof outer layer (1) and the connecting inner layer (3) in one go using an injection molding process. The interior of the thermal insulation layer (2) is uniformly distributed with spiral structures (4). Splicing components are provided between the spiral structures (4) and the waterproof outer layer (1) and the connecting inner layer (3), and docking components are installed between two adjacent spiral structures (4). The upper and lower ends of the spiral structure (4) are respectively attached to the inner wall of the waterproof outer layer (1) and the connecting inner layer (3), and the spiral structure (4) is made of heat-shrinkable material. The docking assembly includes a connecting rod (41) and a pull rod (42), and the protrusions of two adjacent spiral structures (4) are fixedly connected with the connecting rod (41), and the outer wall of the connecting rod (41) is evenly distributed with pull rods (42). The connecting rod (41) is parallel to the waterproof outer layer (1) and the connecting inner layer (3), and the pull rod (42) is perpendicular to the waterproof outer layer (1) and the connecting inner layer (3). The splicing assembly includes slots (5) and inserts (6), and inserts (6) are fixed at both the upper and lower ends of the spiral structure (4). Slots (5) are symmetrically opened on the inner surfaces of the waterproof outer layer (1) and the connecting inner layer (3) corresponding to the upper and lower ends of the spiral structure (4), and the two inserts (6) at the upper and lower ends of the spiral structure (4) are respectively inserted into the two slots (5).

2. The polymer waterproof decorative thermal insulation composite board according to claim 1, characterized in that: Both the slot (5) and the plug (6) are designed with an inverted trapezoidal structure, and the plug (6) is made of rubber.

3. A molding process for a polymer waterproof decorative and thermal insulation composite board, used to produce the polymer waterproof decorative and thermal insulation composite board as described in claim 2, characterized in that, Includes the following steps: S1: The heat shrink rod is made into a spiral structure (4) by sequentially heating and softening, thread bending and cooling and shaping process, and the insert (6) is fixed at the upper and lower ends of the spiral structure (4); S2: Then, the pull rod (42) is evenly glued and fixed to the outer wall of the connecting rod (41), and the two ends of the connecting rod (41) are fixedly connected to the protrusions of the two adjacent spiral structures (4); S3: Forcefully insert the two rubber inserts (6) at the top and bottom of the spiral structure (4) into the corresponding slots (5) on the inner surfaces of the waterproof outer layer (1) and the connecting inner layer (3) to achieve the initial connection between the waterproof outer layer (1) and the connecting inner layer (3); S4: Finally, place the connecting frame from the above steps into the mold, and then use the injection molding process to inject the foamed insulation material into the space between the waterproof outer layer (1) and the connecting inner layer (3) in one go. After standing and cooling, the polymer waterproof decorative insulation composite board is formed.

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