An ultra-low thermal conductivity insulation demoulding template with a fire-retardant organic silicon-aerogel core material

Abstract

This invention discloses an ultra-low thermal conductivity, heat-insulating, and non-removable template with a flame-retardant organosilicon-aerogel core material, relating to the field of building technology. It includes: a cement-based high-strength backing fabric, an inner core, and a metal decorative surface. The cement-based high-strength backing fabric and the metal decorative surface are respectively bonded to opposite sides of the inner core; a folded edge plate, which is integrally bent from the two edges of the metal decorative surface, and its entirety covers and seals the side end faces of the inner core; and a seepage-sealing unit, which is arranged along the length of the folded edge plate and includes a first liquid storage tank, a second liquid storage tank, and a collection tank. The first and second liquid storage tanks are parallel and sealed inside the side wall of the folded edge plate, and are isolated from each other. This invention achieves active sealing and self-healing of seepage in the vertical seams of the non-removable template by setting a double-slot isolated seepage-sealing unit inside the folded edge plate and using a water-soluble sheet with a double-sided differentiated protective coating.

Description

Technical Field

[0001] This invention relates to the field of building technology, specifically to an ultra-low thermal conductivity, heat-insulating, and non-removable formwork with a flame-retardant organosilicon-aerogel core material. Background Technology

[0002] The no-removal formwork technology for building exterior wall insulation has been widely used in modern prefabricated buildings, cast-in-place concrete exterior walls, and ultra-low energy consumption building insulation systems due to its outstanding advantages such as convenient construction, strong integrity, excellent insulation effect, no need for subsequent formwork removal, and good overall wall integrity. Existing no-removal insulation formwork generally adopts a prefabricated structure with a composite inner and outer layer of insulation core material. After the concrete is poured, the formwork can be completely anchored to the building wall to form an integrated structure, eliminating multiple construction steps such as traditional formwork removal and secondary insulation application. This significantly simplifies the construction process, shortens the construction cycle, and effectively improves the overall continuity of exterior wall insulation, avoiding fundamental problems such as insulation breaks, hollow areas, and cracks that exist in traditional construction. It is well-suited to the current development needs of building industrialization and energy conservation.

[0003] However, existing non-removable thermal insulation formwork still has shortcomings in actual long-term service in exterior wall projects. The existing non-removable formwork panel splicing waterproof system is extremely simple. Adjacent formwork panels rely solely on external sealant and sealing strips for passive sealing and seepage prevention, without active water-stopping or self-healing structures. Since building exterior walls are exposed to the elements and are subjected to wind, rain, sun, and temperature changes over a long period of time, traditional sealants are prone to aging, hardening, cracking, and peeling. On rainy days, rainwater will flow continuously along the vertical splicing joints of the exterior wall due to gravity, resulting in excessively long contact time between the vertical joints and rainwater, making the vertical splicing joints of the formwork a weak point in the exterior wall waterproof system. The existing sealing structure of the vertical joints of the formwork without removal can only achieve a normal static seal. Once the sealing structure fails, it does not have the ability to automatically plug leaks or repair leakage channels. Rainwater will continue to seep in and accumulate along the joint gaps. The seeping rainwater will not only cause the exterior wall to become damp, effloresce, peel, and fall off, damaging the stability of the exterior wall decoration layer and the wall structure, but it will also invade the internal insulation core material, causing the insulation core material to absorb water, become damp, moldy, rot, and collapse due to water accumulation in the pores. This will significantly increase the thermal conductivity of the core material, damage the wall insulation system, cause the building's energy consumption to continue to rise, and seriously reduce the service life of the exterior wall insulation structure. Summary of the Invention

[0004] The purpose of this invention is to provide an ultra-low thermal conductivity, heat-insulating, and non-removable template with a flame-retardant organosilicon-aerogel core material, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an ultra-low thermal conductivity, heat-insulating, and non-removable template with a flame-retardant organosilicon-aerogel core material, comprising: The cement-based high-strength backing fabric, the inner core, and the metal decorative surface are respectively bonded and composited to the opposite sides of the inner core. The folded edge plate is integrally bent from both sides of the metal decorative surface, and its entire body covers and seals the side end face of the inner core; A seepage sealing unit is provided, arranged along the length of the folded edge plate. It includes a first liquid storage tank, a second liquid storage tank, and a collection tank. The first and second liquid storage tanks are parallel and sealed inside the side wall of the folded edge plate, isolated from each other. The first and second liquid storage tanks are respectively filled with a first solution and a second solution. The first and second solutions mix to form an expanding elastic waterproof layer. The first solution is a mixture of hydrophilic modified polyether polyol and SAP superabsorbent polymer (SAP), and the second solution is an isocyanate curing crosslinking agent. The collection tank is located on the outer surface of the folded edge plate, positioned between the first and second liquid storage tanks. The inner wall of the collection tank is divided into two sections... The two connecting channels are connected at their other ends to the first and second liquid storage tanks, respectively. A water-soluble sheet is embedded in the collection tank. The water-soluble sheet is made of cold-water-soluble polyvinyl alcohol film with a degree of alcoholysis of 87% to 89%. The water-soluble sheet blocks the openings of the two connecting channels and dissolves in water. The two end faces of the water-soluble sheet facing the two connecting channels are respectively provided with protective coatings. The two protective coatings can withstand the erosion of the first and second solutions on the corresponding sides. The protective coating on the end face of the water-soluble sheet facing the first liquid storage tank is a polyolefin isolation coating, and the protective coating on the end face of the water-soluble sheet facing the second liquid storage tank is a closed isocyanate-resistant barrier coating.

[0006] As a further preferred embodiment of this technical solution, the ends of the first liquid storage tank and the second liquid storage tank are respectively provided with liquid injection holes, and the liquid injection holes extend to the outer surface of the folded edge plate.

[0007] As a further preferred embodiment of this technical solution, the folded edge plate is formed by double folding, which includes a first fold and a second fold, the first fold and the second fold are folded together, and a gap is formed between them.

[0008] As a further preferred embodiment of this technical solution, a first partition seam is provided on the first folded edge, the first partition seam is arranged along the length direction of the first folded edge, and its length is less than the length of the first folded edge. A second partition seam is provided on the second folded edge, and its arrangement and size are the same as the first partition seam. The first partition seam and the second partition seam are staggered.

[0009] As a further preferred embodiment of this technical solution, the first partition seam, the second partition seam, and the gap are filled with heat-insulating adhesive.

[0010] As a further preferred embodiment of this technical solution, the two folded edge plates are respectively stamped with male and female openings, which are compatible with each other, and adjacent two non-removable templates are spliced ​​together by interlocking the male and female openings.

[0011] As a further preferred embodiment of this technical solution, a sealing groove is provided at the center of both the male and female openings, and an elastic density strip is provided inside the sealing groove.

[0012] As a further preferred embodiment of this technical solution, a water guide eave is provided at the bottom of the front end face of the metal decorative panel.

[0013] As a further preferred embodiment of this technical solution, the inner core is formed by in-situ foaming molding process, and during the foaming and curing process, it is bonded to the cement-based high-strength backing cloth and metal decorative surface to form an integral structure.

[0014] As a further preferred embodiment of this technical solution, the end face of the cement-based high-strength backing fabric facing the inner core is provided with a connecting plate, and the connecting plate has a grid-like structure.

[0015] This invention provides an ultra-low thermal conductivity, heat-insulating, and non-removable template with a flame-retardant silicone-aerogel core material, which has the following beneficial effects: This invention achieves active sealing and self-healing of seepage in vertical seams of template splicing without disassembly by setting a double-groove isolation seepage sealing unit inside the folded edge plate and using a water-soluble sheet with a double-sided differentiated protective coating. Specifically, a first solution and a second solution are stored in a first and a second liquid storage tank that are isolated from each other. The water-soluble sheet seals the connecting groove. Different protective coatings are set on both sides of the water-soluble sheet, which can withstand the erosion of the first solution and the second solution respectively, preventing the two components from mixing and reacting prematurely, and ensuring long-term sealing stability. When seepage occurs in the vertical seam of the template, the middle of the water-soluble sheet dissolves upon contact with water, the protective coatings on both sides lose their support and fall off, the connecting groove becomes open, and the two solutions mix and cross-link to form an expandable elastic waterproof layer that seals the seepage channel. This solves the problem that existing templates without disassembly rely solely on passive sealing and cannot repair themselves after seepage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an ultra-low thermal conductivity, heat-insulating, and non-removable template with a flame-retardant organosilicon-aerogel core material according to the present invention. Figure 2 This is a schematic diagram showing the disassembled overall structure of the flame-retardant organosilicon-aerogel core material ultra-low thermal conductivity insulation template that does not require disassembly according to the present invention. Figure 3 This is a schematic diagram of the structure of the metal decorative surface in an ultra-low thermal conductivity, heat-insulating, and non-removable template of a flame-retardant organosilicon-aerogel core material according to the present invention. Figure 4This is a schematic diagram showing the distribution of water guide eaves in an ultra-low thermal conductivity, heat-insulating, and non-removable template with flame-retardant organosilicon-aerogel core material according to the present invention. Figure 5 This is a schematic diagram of the folded edge plate in the ultra-low thermal conductivity, heat-insulating, and non-removable template of a flame-retardant organosilicon-aerogel core material according to the present invention. Figure 6 This is a schematic diagram of the folded edge plate from another perspective in the ultra-low thermal conductivity, heat-insulating, and non-removable template of a flame-retardant organosilicon-aerogel core material of the present invention. Figure 7 This is a cross-sectional schematic diagram of the folded edge plate in the ultra-low thermal conductivity, heat-insulating, and non-removable template of a flame-retardant organosilicon-aerogel core material according to the present invention. Figure 8 This invention relates to an ultra-low thermal conductivity, heat-insulating, and non-removable template with a flame-retardant silicone-aerogel core material. Figure 7 A schematic diagram of the structure of A in the middle; Figure 9 This is a schematic diagram of the working process of the water seepage sealing unit in the ultra-low thermal conductivity, heat-insulating, and non-removable template of the flame-retardant organosilicon-aerogel core material of the present invention.

[0017] In the diagram: 100, cement-based high-strength backing fabric; 110, connecting plate; 200, inner core; 300, metal decorative surface; 310, water guide eaves; 400, folded edge plate; 410, first folded edge; 411, first partition joint; 420, second folded edge; 421, second partition joint; 430, male-female joint; 431, sealing groove; 440, female-female joint; 450, gap; 500, seepage sealing unit; 510, first liquid storage tank; 511, first solution; 520, second liquid storage tank; 521, second solution; 530, liquid collection tank; 540, connecting groove; 550, water-soluble tablet; 551, protective coating; 560, injection hole. Detailed Implementation

[0018] 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.

[0019] To address the shortcomings of existing technologies, this invention discloses an ultra-low thermal conductivity, heat-insulating, and non-removable template with a flame-retardant organosilicon-aerogel core material. The template includes a cement-based high-strength backing fabric 100, an inner core 200, a metal decorative surface 300, a folded edge plate 400, and a water-sealing unit 500. The cement-based high-strength backing fabric 100 and the metal decorative surface 300 are respectively bonded to opposite sides of the inner core 200, forming the main structure of the template. This three-layer composite main structure ensures both the template's thermal insulation performance and structural stability. The folded edge plate 400 is integrally bent and forms the sides of the inner core 200, preventing rainwater erosion. The folded edge plate 400 employs a folded heat-insulating structure, balancing the template's structural strength and thermal insulation performance. The water-sealing unit 500 can actively stop water seepage at the joints.

[0020] The following describes in detail the specific implementation methods for achieving the above-mentioned technical features and the effects that can be further produced.

[0021] In one specific implementation, such as Figure 4 As shown, the seepage sealing unit 500 is arranged along the length of the folded plate 400 and is located on the side of the folded plate 400 closest to the metal decorative surface 300, as shown. Figure 8As shown, the seepage sealing unit 500 includes a first liquid storage tank 510, a second liquid storage tank 520, and a collection tank 530. The first liquid storage tank 510 and the second liquid storage tank 520 are parallel to each other and are located inside the side wall of the folded plate 400, with the two tanks isolated from each other. The first liquid storage tank 510 is filled with a first solution 511, and the second liquid storage tank 520 is filled with a second solution 521. The first solution 511 and the second solution 521, when mixed, can form an expanding elastic waterproof layer. The collection tank 530 is located on the outer surface of the folded plate 400, between the first liquid storage tank 510 and the second liquid storage tank 520. The inner walls on both sides of the collection tank 530 are provided with connecting grooves 540, which connect the first liquid storage tank 510 and the second liquid storage tank 520, respectively. A water-soluble sheet 550 is provided inside the collection tank 530, which seals the opening of the connecting groove 540. The water-soluble sheet 550 faces the two connecting grooves 510 and 520. Protective coatings 551 are provided on the two end faces of 40, and the two protective coatings 551 can withstand the erosion of the first solution 511 and the second solution 521 on the corresponding sides, respectively. In this embodiment, the first solution 511 is a mixture of hydrophilic modified polyether polyol and SAP superabsorbent resin, and the second solution 521 is an isocyanate curing crosslinking agent. The water-soluble sheet 550 is prepared from a cold water-soluble polyvinyl alcohol sheet with a degree of alcoholysis of 87% to 89%. The protective coating 551 on the end face of the water-soluble sheet 550 facing the first liquid storage tank 510 is a polyolefin isolation coating, which can prevent the hydrophilic modified polyether polyol from penetrating and plasticizing the film substrate. The protective coating 551 on the end face of the water-soluble sheet 550 facing the second liquid storage tank 520 is a closed isocyanate-resistant barrier coating, which can prevent the isocyanate component from undergoing a slow crosslinking reaction with the hydroxyl groups on the surface of polyvinyl alcohol, and prevent the film from becoming brittle and leaking during long-term storage. Figure 9 As shown in the first figure, the water-soluble tablet 550 has an uncoated, exposed central area. Under normal conditions, its structure, combined with the protective coatings 551 at both ends, isolates the two solutions, preventing premature mixing and failure of the two components. Figure 9 As shown in the second figure, when external rainwater seeps into the collection tank 530 and wets the middle part of the water-soluble sheet 550, the polyvinyl alcohol substrate quickly absorbs water and dissolves. The protective coatings 551 attached to both ends lose their adhesion and fall off, and the connecting channel 540 becomes open. Figure 9 As shown in the third figure, the first solution 511 and the second solution 521 flow into the collection tank 530 to mix and cross-link, and react to generate an elastic waterproof layer with volume expansion capability. This layer autonomously fills and seals the seepage channels in the vertical joints of the template, achieving active self-healing and water-stopping of leakage.

[0022] In one specific implementation, such as Figure 5As shown, the first liquid storage tank 510 and the second liquid storage tank 520 are respectively provided with injection holes 560 at their ends. The injection holes 560 extend to the outer surface of the folded edge plate 400. The injection holes 560 are used to fill the solution. After the solution is filled, it is sealed with sealant. The sealant is made of a material that does not react with the solution, which will not be described in detail here.

[0023] In one specific implementation, such as Figure 2 As shown, the cement-based high-strength backing fabric 100 is used for anchoring and connecting with the concrete wall. The metal decorative surface 300 is set on the outside of the template. A connecting plate 110 is set on the end face of the cement-based high-strength backing fabric 100 facing the inner core 200. The connecting plate 110 has a grid structure and is used to improve the bonding strength between the cement-based high-strength backing fabric 100 and the inner core 200 and prevent interlayer detachment. The inner core 200 adopts a patented product authorized by Shanghai Yueda Energy Saving Technology Co., Ltd., with patent number CN118325035B. It is a polysilicon-based composite flame-retardant thermal insulation board. The inner core 200 adopts an in-situ foaming molding process. During the foaming and curing process, it is bonded to the cement-based high-strength backing fabric 100 and the metal decorative surface 300 into an integrated structure, avoiding problems such as poor integrity and insufficient durability caused by adhesive aging, debonding, and hollowing, thus improving the structural stability and long-term reliability of the board.

[0024] In one specific implementation, such as Figure 5 As shown, the folded edge plate 400 is integrally bent from both sides of the metal decorative surface 300. The folded edge plate 400 can cover and seal the side end face of the inner core 200, forming a protection for the inner core 200. This ensures that even if the vertical seam seal fails, the rainwater that seeps in will not directly contact the inner core 200. The folded edge plate 400 includes a first folded edge 410 and a second folded edge 420. The first folded edge 410 and the second folded edge 420 are folded together, forming a gap 450 between them. The double folded edge structure increases the thickness of the folded edge plate 400 and improves the strength of the template side structure.

[0025] While the folded edge plate 400 provides protection for the inner core 200, its metal material creates a thermal bridge between adjacent templates after installation, reducing the template's insulation performance. Therefore, the following design is implemented: Figure 5 As shown, the first folded edge 410 has a first partition slit 411 along its length, as... Figure 6 As shown, the second folded edge 420 has a second partition slit 421 along its length. The lengths of both the first partition slit 411 and the second partition slit 421 are less than the length of the folded edge. Figure 7As shown, the two are staggered. The first partition seam 411, the second partition seam 421 and the gap 450 are filled with heat insulation glue. The first partition seam 411, the second partition seam 421 and the heat insulation glue can break the thermal bridge of the metal fold and reduce heat conduction. At the same time, the heat insulation glue in the gap 450 can limit the rebound of the first fold 410 and the second fold 420 and fix the double fold structure. The staggered distribution of the first partition seam 411 and the second partition seam 421 can ensure that the first partition seam 411 area of ​​the first fold 410 is supported by the complete area of ​​the second fold 420, and the second partition seam 421 area of ​​the second fold 420 is supported by the complete area of ​​the first fold 410, avoiding the overlap of the partition seams which would cause the fold plate 400 to break easily.

[0026] In one specific implementation, such as Figure 3 As shown, the two side folded plates 400 are respectively provided with male and female openings 430 and female openings 440. The male and female openings 430 and female openings 440 are compatible with each other. Adjacent templates can be spliced ​​together by fitting the male and female openings 430 and female openings 440. A sealing groove 431 is opened in the center of the male and female openings 430 and female openings 440. An elastic density strip is set inside the sealing groove 431. After the templates are fitted together, the elastic density strip fills the splicing gap, further improving the sealing of the vertical seams between the templates.

[0027] In one specific implementation, such as Figure 4 As shown, a water guide eaves 310 are provided at the bottom of the metal decorative surface 300. The cross-section of the water guide eaves 310 is a right-angled trapezoidal structure with its inclined surface facing upward. After the two adjacent vertical templates are spliced ​​together, the water guide eaves 310 are placed horizontally above the horizontal seam of the upper template. As rainwater flows vertically down the outer surface of the template, the water guide eaves 310 can guide and divert the water flow, directing the rainwater to drip outward from the horizontal seam. This mimics the principle of roof eaves blocking and draining water, reducing the accumulation and seepage of rainwater at the splicing horizontal seam, and reducing the probability of water entering the gap from the source.

[0028] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A flame-retardant organosilicon-aerogel core material ultra-low thermal conductivity insulation template that requires no disassembly, characterized in that, include: The cement-based high-strength backing fabric (100), the inner core (200), and the metal decorative surface (300) are respectively bonded and composited to the opposite sides of the inner core (200); The folded edge plate (400) is integrally bent from both sides of the metal decorative surface (300) and its entirety covers and blocks the side end face of the inner core (200); A seepage sealing unit (500) is arranged along the length of the folded edge plate (400). It includes a first liquid storage tank (510), a second liquid storage tank (520), and a collection tank (530). The first liquid storage tank (510) and the second liquid storage tank (520) are parallel and sealed inside the side wall of the folded edge plate (400) and are isolated from each other. The first liquid storage tank (510) and the second liquid storage tank (520) are respectively filled with a first solution (511) and a second solution. Liquid (521), the first solution (511) and the second solution (521) are mixed to form an expanding elastic waterproof layer. The first solution (511) is a mixture of hydrophilic modified polyether polyol and SAP superabsorbent resin. The second solution (521) is an isocyanate curing crosslinking agent. The liquid collection tank (530) is opened on the outer surface of the folded plate (400) and is arranged in the middle position between the first liquid storage tank (510) and the second liquid storage tank (520). The inner wall of the liquid collection tank (530) Two connecting channels (540) are respectively opened on both sides, and the other ends of the two connecting channels (540) are respectively connected to the first liquid storage tank (510) and the second liquid storage tank (520). The liquid collection tank (530) is embedded with a water-soluble sheet (550). The water-soluble sheet (550) is made of cold water-soluble polyvinyl alcohol film with a degree of alcoholysis of 87% to 89%. The water-soluble sheet (550) blocks the opening of the two connecting channels (540) and dissolves in water. The water-soluble sheet (550) faces the two... The two end faces of the connecting groove (540) are respectively provided with protective coatings (551). The two protective coatings (551) can withstand the erosion of the first solution (511) and the second solution (521) on the corresponding side. The protective coating (551) on the end face of the water-soluble sheet (550) facing the first liquid storage tank (510) is a polyolefin isolation coating. The protective coating (551) on the end face of the water-soluble sheet (550) facing the second liquid storage tank (520) is a closed isocyanate resistant barrier coating.

2. The ultra-low thermal conductivity, heat-insulating, and non-removable template with flame-retardant organosilicon-aerogel core material according to claim 1, characterized in that: The first liquid storage tank (510) and the second liquid storage tank (520) are respectively provided with injection holes (560) at their ends, and the injection holes (560) extend to the outer surface of the folded edge plate (400).

3. The ultra-low thermal conductivity, heat-insulating, and non-removable template with flame-retardant organosilicon-aerogel core material according to claim 1, characterized in that: The folded edge plate (400) is formed by double folding, including a first fold (410) and a second fold (420). The first fold (410) and the second fold (420) are folded together, forming a gap (450) between them.

4. The ultra-low thermal conductivity, heat-insulating, and non-removable template with flame-retardant organosilicon-aerogel core material according to claim 3, characterized in that: A first partition seam (411) is provided on the first folded edge (410). The first partition seam (411) is arranged along the length direction of the first folded edge (410) and its length is less than the length of the first folded edge (410). A second partition seam (421) is provided on the second folded edge (420). Its arrangement and size are the same as the first partition seam (411). The first partition seam (411) and the second partition seam (421) are staggered.

5. The ultra-low thermal conductivity, heat-insulating, and non-removable template with flame-retardant organosilicon-aerogel core material according to claim 4, characterized in that: The first partition seam (411), the second partition seam (421) and the gap (450) are filled with heat-insulating adhesive.

6. The ultra-low thermal conductivity, heat-insulating, and non-removable template with flame-retardant organosilicon-aerogel core material according to claim 1, characterized in that: The two folded plates (400) are respectively stamped with male and female openings (430) and female openings (440). The male and female openings (430) and female openings (440) are compatible with each other, and two adjacent non-removable templates are spliced ​​together by the male and female openings (430) and female openings (440).

7. The ultra-low thermal conductivity, heat-insulating, and non-removable template with flame-retardant organosilicon-aerogel core material according to claim 6, characterized in that: A sealing groove (431) is provided at the center of both the male and female openings (440), and an elastic density strip is provided in the sealing groove (431).

8. The ultra-low thermal conductivity, heat-insulating, and non-removable template with flame-retardant organosilicon-aerogel core material according to claim 1, characterized in that: The bottom of the front end of the metal decorative surface (300) is provided with a water guide (310).

9. The ultra-low thermal conductivity, heat-insulating, and non-removable template with flame-retardant organosilicon-aerogel core material according to claim 1, characterized in that: The inner core (200) is formed by in-situ foaming molding process. During the foaming and curing process, it is bonded to the cement-based high-strength backing cloth (100) and the metal decorative surface (300) to form an integral structure.

10. The ultra-low thermal conductivity, heat-insulating, and non-removable template with flame-retardant organosilicon-aerogel core material according to claim 1, characterized in that: The cement-based high-strength backing fabric (100) has a connecting plate (110) on the end face facing the inner core (200), and the connecting plate (110) has a grid structure.

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