WO2022217651A1 - Anti-radiation aerogel composite coiled material and application method thereof in wall - Google Patents

Anti-radiation aerogel composite coiled material and application method thereof in wall Download PDF

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Publication number
WO2022217651A1
WO2022217651A1 PCT/CN2021/090400 CN2021090400W WO2022217651A1 WO 2022217651 A1 WO2022217651 A1 WO 2022217651A1 CN 2021090400 W CN2021090400 W CN 2021090400W WO 2022217651 A1 WO2022217651 A1 WO 2022217651A1
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aerogel
aerogel composite
radiation
felt
aerogel felt
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PCT/CN2021/090400
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French (fr)
Chinese (zh)
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朱秦江
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朱秦江
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/7608—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising a prefabricated insulating layer, disposed between two other layers or panels
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/64—Insulation or other protection; Elements or use of specified material therefor for making damp-proof; Protection against corrosion
    • E04B1/644—Damp-proof courses
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/762—Exterior insulation of exterior walls
    • E04B1/7637—Anchoring of separate elements through the lining to the wall
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/7654—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B2001/7691—Heat reflecting layers or coatings

Definitions

  • the invention relates to a building thermal insulation component, in particular to an anti-radiation aerogel composite coil and an application method thereof in a wall.
  • Insulation of buildings can largely block the heat exchange inside and outside the building, thereby reducing the energy consumption to maintain a comfortable temperature in the building.
  • Existing insulation materials generally have this structure: a porous material pasted with metal foil.
  • the thermal conductivity of the air confined in the porous material is extremely low, which is responsible for blocking heat conduction; the porous material itself has a large surface area and adsorption capacity, which constrains the air in the pores and prevents it from flowing, thereby blocking thermal convection; metal foil It can be approximated as a white body, and the generated black body radiation is close to 0, and at the same time, it can reflect back the thermal radiation inside the building.
  • Existing porous materials including organic materials and inorganic materials.
  • Common organic porous materials include rubber and polyvinyl chloride mixed rubber and plastic insulation materials, foamed polystyrene plastics, foamed polyurethane, and various fiber products;
  • common inorganic porous materials include foamed gypsum board, rock wool , glass wool, etc.
  • the porosity of organic porous materials is easy to be large, so the thermal insulation effect of organic porous materials is generally better than that of inorganic porous materials.
  • the organic porous material itself is flammable, and its fire resistance can generally only reach the B1 level, and it can hardly reach the A level, which cannot meet the fire protection requirements of high-rise buildings.
  • the porous materials currently used in building thermal insulation are mainly inorganic materials, but due to the poor thermal insulation effect of inorganic porous materials, they need to be made very thick, which increases the cost and occupies a lot of space; , the wall itself needs to have enough strength to hang the insulation layer, and high-strength anchors are also required, which restricts its installation on existing buildings and individual households' own installation, making the absolute majority of the existing buildings unable to effectively Complete insulation.
  • Aerogel is a very special kind of porous material. It has a porosity far exceeding that of ordinary porous materials. It can generally reach more than 80%, and the highest can reach more than 99%. Therefore, its density is extremely low, and its thermal insulation effect is much better than that of ordinary porous materials. Porous materials, very thin aerogels can meet the needs of thermal insulation. However, at present, aerogel is mainly used for pipeline insulation (no need to consider flatness, does not need to be cut into complex shapes, and will not be pressed, so the strength requirements for insulation materials are very low), and it has not been used in building insulation.
  • aerogels that can meet the fire protection requirements of buildings, such as silica aerogels, have very low strength and are completely inelastic. They "drop powder" when they are touched, and they will collapse under light extrusion. All are faced with great difficulties, and special containers are often required to protect them during transportation. And whether it is exposed on the outside of the building or sandwiched between the building wall and the decorative panel, it will be compressed during the installation process and lose its thermal insulation ability.
  • the invention provides an anti-radiation aerogel composite coil and an application method thereof in a wall.
  • the technical problem to be solved is: among the currently commonly used building insulation materials, it is difficult for organic materials to meet the needs of building fire protection, and the inorganic materials have poor insulation effect and need to be made very thick, which brings a series of problems.
  • an anti-radiation aerogel composite coil material includes an aerogel felt, and the upper and lower surfaces of the aerogel felt are respectively wrapped with metal foils.
  • the aerogel felt and the metal foil are glued and connected by a flexible adhesive, and the flexible adhesive fills the gap between the aerogel felt and the metal foil.
  • the material of the aerogel felt is hydrophobic aerogel
  • the flexible adhesive is waterproof glue
  • a support block for preventing the aerogel felt from being crushed is evenly embedded in the aerogel felt, and the interior of the support block is filled with thermal insulation filler.
  • the metal foil is an aluminum foil.
  • the oxygen index of the metal foil, aerogel felt, and waterproof glue is not less than 32%.
  • the material of the aerogel felt is inorganic aerogel.
  • a construction method of a wall insulation layer selecting the above-mentioned anti-radiation aerogel composite coil material as the insulation material, and comprising the following steps:
  • Step 1 Install the support block on the building wall
  • Step 2 Install the aerogel composite coil with holes corresponding to the support blocks on the building wall, so that the support blocks enter the corresponding holes;
  • Step 3 Install the decorative panel on the support block.
  • step 2 includes the following sub-steps:
  • Step 2.1 Install conduits and boxes on the building wall
  • Step 2.2 Install the first layer of aerogel composite coils with holes corresponding to the support blocks on the building wall, make the support blocks enter the corresponding holes, and install the aerogel composite coils on the first layer of aerogel composite coils. Open the escape hole on the material to expose the wire tube and the wire box;
  • Step 2.3 Install the second layer of aerogel composite coils with holes corresponding to the support blocks on the building wall, make the support blocks enter the corresponding holes, and press the line pipes on the second layer of aerogels. Under the composite membrane, and open the escape opening on the second layer of the aerogel composite membrane to expose the wire box;
  • Step 2.4 Seal the seams of the aerogel composite roll with aluminum foil tape.
  • step 2 the entirety of the wire tube is located within the outer surface of the first layer of aerogel composite coiled material, and the thickness of the wire box does not exceed the total thickness of each layer of aerogel composite coiled material and the decorative panel.
  • an anti-radiation aerogel composite coil material and an application method thereof in the wall of the present invention have the following beneficial effects:
  • the metal foil on the side close to the heat source reflects the heat radiation from the heat source back, and the metal foil on the side away from the heat source acts as a white body to prevent the aerogel felt itself from generating heat Radiation, so that the aerogel felt can effectively block the heat/cold loss of the building due to thermal radiation;
  • the metal foil and the flexible adhesive between the metal foil and the aerogel felt jointly protect the aerogel felt, preventing it from "powdering" due to friction/collision, and also strengthens the aerogel felt.
  • the tensile strength and flexural strength of the product are high, so as to solve the problem that the shape is easily damaged in the process of transportation, installation and cutting;
  • the support block embedded in the aerogel composite coil gives the aerogel felt compressive strength, so that it can be sandwiched between the decorative panel and the building wall without being crushed, so that it can be used in construction Insulation;
  • the thermal insulation effect of the aerogel composite coil material is much better than that of the existing inorganic porous materials, and a very thin layer (2-5 cm) can meet the thermal insulation requirements of buildings, which reduces material consumption, reduces costs, And reduce the occupation of the habitable space by the building insulation layer;
  • a thin layer of the aerogel composite coil can meet the building insulation requirements, and the density of the aerogel composite coil is extremely low, so the self-weight of the entire insulation layer is extremely small; no high-strength insulation is required during the installation of the insulation layer.
  • the anchor can meet the installation requirements with simple anchors or even glue, and it does not need to damage the building wall, nor does it need to strengthen the building wall to meet the needs of suspending the insulation layer; this makes the aerogel in the present invention.
  • the exposed surface of the aerogel felt has a lot of fine fluff, so it is not easy to get wet like a lotus leaf, and it is difficult for water to enter the aerogel felt, which not only has a thermal insulation effect, but also greatly enhances the The waterproof ability of the building is improved; and the chemical properties of the inorganic aerogel felt are extremely stable, completely non-flammable, completely free from moisture and mildew, and extremely weather-resistant.
  • Fig. 1 is the structural representation of a kind of anti-radiation aerogel composite coil material of the present invention
  • Fig. 2 is the structural representation of support block when in use
  • FIG. 3 is a schematic structural diagram of an aerogel composite coiled material with reserved holes corresponding to support blocks one-to-one;
  • 1- aerogel composite membrane 11- aerogel felt, 12- metal foil, 13- support block, 14- reserved hole, 2- structural adhesive, 3- decorative panel, 4- building wall
  • an anti-radiation aerogel composite roll includes an aerogel felt 11 , and the upper and lower surfaces of the aerogel felt 11 are respectively wrapped with metal foils 12 .
  • the role of the metal foil 12 here is not only to block heat radiation, but also to protect the aerogel felt 11, so it should be thicker under the premise that the bending is not affected and the processing conditions allow, at least Make it unbreakable with a fingernail to keep it intact during handling and cutting.
  • the aerogel felt 11 and the metal foil 12 are glued and connected by a flexible adhesive, and the flexible adhesive fills the gap between the aerogel felt 11 and the metal foil 12 .
  • the flexible adhesive here refers to the adhesive that remains soft after curing. There are two functions for selecting the flexible adhesive. One is to avoid affecting the bending of the aerogel felt 11 , and the other is to form an adhesive covering the surface of the aerogel felt 11 .
  • the membrane plays a role in constraining and protecting the surface of the aerogel felt 11, preventing it from "powdering" and breaking.
  • the material of the aerogel felt 11 is hydrophobic aerogel, and the flexible adhesive is waterproof glue to meet waterproof requirements.
  • the inorganic aerogel products currently on the market are generally hydrophobic, because the surfaces of the existing inorganic aerogel products on the market generally have fine fluff on the surface, which do not retain water like lotus leaves.
  • Organic aerogel products, such as some cellulose aerogels, are not hydrophobic, but there is a need for fire protection in buildings, and such aerogels will not be used.
  • a support block 13 for preventing the aerogel felt 11 from being crushed is evenly embedded in the aerogel felt 11 , and the interior of the support block 13 is filled with thermal insulation fillers. If a single-layer gel composite membrane is used, the thickness of the support block 13 should be the same as that of the single-layer aerogel composite membrane 1; if a multi-layer gel composite membrane is used, the thickness of the support block 13 should be The overall thickness of the layered aerogel composite web 1 is the same.
  • the support blocks 13 are arranged in a matrix to resist the extrusion of the decorative panel 3 .
  • the support block 13 is a round flat box with a screwed cover, and the interior is filled with thermal insulation filler; this can not only adjust the thickness, but also prevent the support block 13 from forming a cold bridge.
  • the veneer 3 here also plays a protective role.
  • the oxygen index of the metal foil 12 , the aerogel felt 11 , the support block 13 , and the waterproof glue should not be less than 32%, that is, at least B1 class fire protection is satisfied.
  • the metal foil 12 is aluminum foil
  • the material of the aerogel felt 11 is inorganic aerogel such as silica aerogel
  • the waterproof glue is refractory glue such as MS glue
  • the support block 13 is B1 grade
  • the aerogel composite coil 1 is a class A fireproof and thermal insulation material.
  • a construction method of a wall insulation layer is used for installing the above-mentioned anti-radiation aerogel composite coil material on a building wall 4 as a thermal insulation material, and includes the following steps:
  • Step 1 Paste and install the support block 13 on the building wall with structural adhesive 2;
  • Step 2 Install the aerogel composite coil 1 with the holes corresponding to the support blocks 13 one-to-one as shown in FIG. 3 on the building wall, so that the support blocks 13 enter the corresponding holes; the adjacent aerogel The composite coil 1 is butt-joined, and the seam is sealed with aluminum foil tape.
  • Step 2 includes the following sub-steps:
  • Step 2.1 Install the wire tube and wire box on the building wall; the wire tube here should be flat, and should be located within the outer surface of the first layer of aerogel composite coil 1; the wire box should also be thinner, preferably with the decorative The outer surface of panel 3 is flush;
  • Step 2.2 Install the first layer of the aerogel composite membrane 1 with holes corresponding to the support blocks 13 on the building wall, so that the support blocks 13 enter the corresponding holes, and aerogels on the first layer An escape opening is opened on the rubber composite coil 1 to expose the wire tube and the wire box;
  • Step 2.3 Install the second layer of the aerogel composite coil 1 with holes corresponding to the support blocks 13 on the building wall, make the support blocks 13 enter the corresponding holes, and press the line pipe on the second layer.
  • the second layer of aerogel composite coil material 1 is placed under the layer 1, and an escape opening is opened on the second layer of aerogel composite coil material 1 to expose the wire box;
  • Step 2.4 Seal the seams of the aerogel composite roll 1 with aluminum foil tape.
  • Step 3 Paste the decorative panel 3 on the support block 13 with the structural adhesive 2, and then paste a layer of aerogel composite membrane 1 on the wire box.
  • building wall 4 here refers to all the walls in the building that need thermal insulation, including the ceiling.

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  • Architecture (AREA)
  • Physics & Mathematics (AREA)
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Abstract

An anti-radiation aerogel composite coiled material and a construction method therefor in a wall. The anti-radiation aerogel composite coiled material comprises aerogel felt (11); the upper and lower surfaces of the aerogel felt (11) are respectively coated with metal foils (12); support blocks (13) used for preventing the aerogel felt from being crushed are uniformly buried in the aerogel felt (11). The metal foils (12) and a flexible adhesive between the metal foils (12) and the aerogel felt (11) together protect the aerogel felt (11) from "powdering" due to friction/collision, and also enhance the tensile strength and the bend strength of the aerogel felt (11), such that the aerogel felt may not be easily damaged during transportation and cutting; the support blocks (13) buried in the aerogel composite coiled material endow the aerogel felt (11) with compressive strength, such that the aerogel felt can be clamped between a building veneer and a building wall without being crushed, and the aerogel felt can be used for heat preservation for a building; the aerogel composite coiled material has extremely small self-weight, and has almost no limitations in use, such that the heat preservation problem of the majority of stock buildings is thoroughly solved.

Description

一种反辐射气凝胶复合卷材及其在墙体中的应用方法A kind of anti-radiation aerogel composite coil and its application method in the wall 技术领域technical field
本发明涉及一种建筑物绝热构件，特别是涉及一种反辐射气凝胶复合卷材及其在墙体中的应用方法。The invention relates to a building thermal insulation component, in particular to an anti-radiation aerogel composite coil and an application method thereof in a wall.
背景技术Background technique
人类生存需要稳定的体温，而靠厚重的衣物以及自身体温调节能力来维持体温是不舒适的。随着社会生产力发展，越来越多的建筑具备了温度调节能力，能够维持住内外的温差，在建筑内维持一个让人感到舒适的温度。Human survival requires a stable body temperature, and it is uncomfortable to maintain body temperature by relying on heavy clothing and its own body temperature regulation ability. With the development of social productivity, more and more buildings have the ability to adjust temperature, which can maintain the temperature difference between inside and outside, and maintain a comfortable temperature in the building.
但维持温差是有代价的，热量只能由高温端向低温端传递。诸如空调等设备，强行使热量从低温端向高温端传递，就需要消耗大量的能源作为代价。以目前的技术来看，能源的消耗往往伴随着碳排放，这对人类的可持续发展十分不利。But maintaining the temperature difference comes at a price, and heat can only be transferred from the high temperature end to the low temperature end. Equipment such as air conditioners forcibly transfer heat from the low temperature end to the high temperature end, which needs to consume a lot of energy as a price. With the current technology, energy consumption is often accompanied by carbon emissions, which is very unfavorable to the sustainable development of human beings.
对建筑进行保温处理，可很大程度上阻断建筑内外的热交换，从而减小维持建筑内令人舒适温度的能耗。热交换的途径有三条：对流、辐射、传导，因此建筑保温层的起作用的方式就是阻断这三种热交换的渠道。现有的保温材料普遍是这种结构：贴有金属箔的多孔材料。其中多孔材料中约束的空气热导率极低，负责阻断热传导；多孔材料本身具备极大的表面积与吸附能力，约束住孔隙中的空气，使之不能流动，从而阻断热对流；金属箔本身可近似看作白体，产生的黑体辐射接近于0，同时又能将建筑内部的热辐射给反射回去。Insulation of buildings can largely block the heat exchange inside and outside the building, thereby reducing the energy consumption to maintain a comfortable temperature in the building. There are three ways of heat exchange: convection, radiation, and conduction, so the way the building insulation layer works is to block these three heat exchange channels. Existing insulation materials generally have this structure: a porous material pasted with metal foil. Among them, the thermal conductivity of the air confined in the porous material is extremely low, which is responsible for blocking heat conduction; the porous material itself has a large surface area and adsorption capacity, which constrains the air in the pores and prevents it from flowing, thereby blocking thermal convection; metal foil It can be approximated as a white body, and the generated black body radiation is close to 0, and at the same time, it can reflect back the thermal radiation inside the building.
现有的多孔材料，包括有机材料和无机材料两类。常见的有机多孔材料包括橡胶和聚氯乙烯混炼的橡塑保温材料、发泡聚苯乙烯塑料、发泡聚氨酯、以及各种纤维制品等；常见的无机多孔材料包括发泡石膏板、岩棉、玻璃棉等。Existing porous materials, including organic materials and inorganic materials. Common organic porous materials include rubber and polyvinyl chloride mixed rubber and plastic insulation materials, foamed polystyrene plastics, foamed polyurethane, and various fiber products; common inorganic porous materials include foamed gypsum board, rock wool , glass wool, etc.
有机多孔材料的孔隙率容易做到很大，因此通常情况下有机多孔材料的保温效果要明显好于无机多孔材料。但有机多孔材料本身易燃，其防火能力普遍只能做到B1级，几乎不能做到A级，无法满足高层建筑的防火需求。因而目前建筑保温所采用的多孔材料以无机材料为主，但由于无机多孔材料的保温效果较差，因此需要做得很厚，这提高了成本并挤占了大量空间；且由于保温层自重较大，需要墙体本身具备足够的强度来悬挂保温层，还需要高强度的锚固件，这限制了其在现有建筑上进行加装以及个人住户自行安装，使得占绝对多数的存量建筑不能有效地完成保温。The porosity of organic porous materials is easy to be large, so the thermal insulation effect of organic porous materials is generally better than that of inorganic porous materials. However, the organic porous material itself is flammable, and its fire resistance can generally only reach the B1 level, and it can hardly reach the A level, which cannot meet the fire protection requirements of high-rise buildings. Therefore, the porous materials currently used in building thermal insulation are mainly inorganic materials, but due to the poor thermal insulation effect of inorganic porous materials, they need to be made very thick, which increases the cost and occupies a lot of space; , the wall itself needs to have enough strength to hang the insulation layer, and high-strength anchors are also required, which restricts its installation on existing buildings and individual households' own installation, making the absolute majority of the existing buildings unable to effectively Complete insulation.
气凝胶是一类很特别的多孔材料，其有着远超普通多孔材料的孔隙率，普遍能达到80％以上，最高可达99％以上，因此其密度极低，且保温效果远好于普通多孔材料，很薄的 气凝胶就能满足保温需求。但目前气凝胶主要用于管道保温(不用考虑平整性、不需要裁切为复杂的形状、不会被压，因而对保温材料的强度要求很低)，尚未应用于建筑保温。Aerogel is a very special kind of porous material. It has a porosity far exceeding that of ordinary porous materials. It can generally reach more than 80%, and the highest can reach more than 99%. Therefore, its density is extremely low, and its thermal insulation effect is much better than that of ordinary porous materials. Porous materials, very thin aerogels can meet the needs of thermal insulation. However, at present, aerogel is mainly used for pipeline insulation (no need to consider flatness, does not need to be cut into complex shapes, and will not be pressed, so the strength requirements for insulation materials are very low), and it has not been used in building insulation.
限制气凝胶应用于建筑保温的主要阻力在于其过低的强度(强度相当于蛋糕，但弹性通常比蛋糕差)。目前能满足建筑防火要求的气凝胶，如二氧化硅气凝胶，强度很低且完全没有弹性，一摸就“掉粉”，承受很轻的挤压就会塌陷，无论是搬运还是裁切均面临着很大的困难，在运输过程中，往往需要专门的容器来对其进行保护。且无论是暴露在建筑外侧还是夹在建筑墙体与饰面板之间均会在安装过程中被压瘪而失去保温能力。The main resistance limiting the application of aerogel to building insulation is its low strength (as strong as cake, but generally less elastic than cake). At present, aerogels that can meet the fire protection requirements of buildings, such as silica aerogels, have very low strength and are completely inelastic. They "drop powder" when they are touched, and they will collapse under light extrusion. All are faced with great difficulties, and special containers are often required to protect them during transportation. And whether it is exposed on the outside of the building or sandwiched between the building wall and the decorative panel, it will be compressed during the installation process and lose its thermal insulation ability.
发明内容SUMMARY OF THE INVENTION
本发明提供一种反辐射气凝胶复合卷材及其在墙体中的应用方法。The invention provides an anti-radiation aerogel composite coil and an application method thereof in a wall.
解决的技术问题是：目前常用的建筑保温材料中，有机材料很难满足建筑防火需求，无机材料保温效果不好，需要做得很厚，带来一系列问题。The technical problem to be solved is: among the currently commonly used building insulation materials, it is difficult for organic materials to meet the needs of building fire protection, and the inorganic materials have poor insulation effect and need to be made very thick, which brings a series of problems.
为解决上述技术问题，本发明采用如下技术方案：一种反辐射气凝胶复合卷材，包括气凝胶毡，所述气凝胶毡的上下表面分别包裹有金属箔。In order to solve the above-mentioned technical problems, the present invention adopts the following technical scheme: an anti-radiation aerogel composite coil material includes an aerogel felt, and the upper and lower surfaces of the aerogel felt are respectively wrapped with metal foils.
进一步：所述气凝胶毡与金属箔通过柔性胶粘剂胶接连接，所述柔性胶粘剂填满气凝胶毡与金属箔之间的空隙。Further: the aerogel felt and the metal foil are glued and connected by a flexible adhesive, and the flexible adhesive fills the gap between the aerogel felt and the metal foil.
进一步：所述气凝胶毡的材质为憎水气凝胶，所述柔性胶粘剂为防水胶。Further: the material of the aerogel felt is hydrophobic aerogel, and the flexible adhesive is waterproof glue.
进一步，所述气凝胶毡中均匀埋设有用于防止气凝胶毡被压坏的支撑块，所述支撑块内部填充有保温填料。Further, a support block for preventing the aerogel felt from being crushed is evenly embedded in the aerogel felt, and the interior of the support block is filled with thermal insulation filler.
进一步，所述金属箔为铝箔。Further, the metal foil is an aluminum foil.
进一步，所述金属箔、气凝胶毡、以及防水胶的氧指数不小于32％。Further, the oxygen index of the metal foil, aerogel felt, and waterproof glue is not less than 32%.
进一步，所述气凝胶毡的材质为无机气凝胶。Further, the material of the aerogel felt is inorganic aerogel.
一种墙面保温层的施工方法，选用上述的一种反辐射气凝胶复合卷材作为保温材料，并包括以下步骤：A construction method of a wall insulation layer, selecting the above-mentioned anti-radiation aerogel composite coil material as the insulation material, and comprising the following steps:
步骤一：在建筑墙面上安装支撑块；Step 1: Install the support block on the building wall;
步骤二：将开有与支撑块一一对应的孔的气凝胶复合卷材安装到建筑墙面上，使支撑块进入与其对应的孔；Step 2: Install the aerogel composite coil with holes corresponding to the support blocks on the building wall, so that the support blocks enter the corresponding holes;
步骤三：在支撑块上安装饰面板。Step 3: Install the decorative panel on the support block.
进一步，步骤二包括以下分步骤：Further, step 2 includes the following sub-steps:
步骤2.1：在建筑墙面安装线管与线盒；Step 2.1: Install conduits and boxes on the building wall;
步骤2.2：将第一层开有与支撑块一一对应的孔的气凝胶复合卷材安装到建筑墙面上，使支 撑块进入与其对应的孔，并在第一层气凝胶复合卷材上开避位口使线管与线盒露出；Step 2.2: Install the first layer of aerogel composite coils with holes corresponding to the support blocks on the building wall, make the support blocks enter the corresponding holes, and install the aerogel composite coils on the first layer of aerogel composite coils. Open the escape hole on the material to expose the wire tube and the wire box;
步骤2.3：将第二层开有与支撑块一一对应的孔的气凝胶复合卷材安装到建筑墙面上，使支撑块进入与其对应的孔，将线管压在第二层气凝胶复合卷材下，并在第二层气凝胶复合卷材上开避位口使线盒露出；Step 2.3: Install the second layer of aerogel composite coils with holes corresponding to the support blocks on the building wall, make the support blocks enter the corresponding holes, and press the line pipes on the second layer of aerogels. Under the composite membrane, and open the escape opening on the second layer of the aerogel composite membrane to expose the wire box;
步骤2.4：用铝箔胶带封堵气凝胶复合卷材的接缝。Step 2.4: Seal the seams of the aerogel composite roll with aluminum foil tape.
进一步，步骤二中，线管整体位于第一层气凝胶复合卷材外表面以内，线盒的厚度不超过各层气凝胶复合卷材与饰面板的总厚度。Further, in step 2, the entirety of the wire tube is located within the outer surface of the first layer of aerogel composite coiled material, and the thickness of the wire box does not exceed the total thickness of each layer of aerogel composite coiled material and the decorative panel.
本发明一种反辐射气凝胶复合卷材及其在墙体中的应用方法与现有技术相比，具有如下有益效果：Compared with the prior art, an anti-radiation aerogel composite coil material and an application method thereof in the wall of the present invention have the following beneficial effects:
本发明中，通过在气凝胶毡两面贴金属箔，靠近热源一侧的金属箔将来自热源的热辐射反射回去，远离热源一侧的金属箔作为白体，防止气凝胶毡自身出现热辐射，从而使气凝胶毡能够有效阻断建筑因热辐射而损失热量/冷量；In the present invention, by sticking metal foils on both sides of the aerogel felt, the metal foil on the side close to the heat source reflects the heat radiation from the heat source back, and the metal foil on the side away from the heat source acts as a white body to prevent the aerogel felt itself from generating heat Radiation, so that the aerogel felt can effectively block the heat/cold loss of the building due to thermal radiation;
本发明中，金属箔以及金属箔与气凝胶毡之间的柔性胶粘剂共同对气凝胶毡起到了保护作用，避免其因摩擦/碰撞而“掉粉”，同时还增强了气凝胶毡的抗拉强度及抗弯强度，从而解决了其在运输、安装、裁剪过程中形体易受损问题；In the present invention, the metal foil and the flexible adhesive between the metal foil and the aerogel felt jointly protect the aerogel felt, preventing it from "powdering" due to friction/collision, and also strengthens the aerogel felt. The tensile strength and flexural strength of the product are high, so as to solve the problem that the shape is easily damaged in the process of transportation, installation and cutting;
本发明中，埋设在气凝胶复合卷材中的支撑块赋予了气凝胶毡抗压强度，使之能够夹在饰面板与建筑墙体之间而不被压坏，从而能够用于建筑保温；In the present invention, the support block embedded in the aerogel composite coil gives the aerogel felt compressive strength, so that it can be sandwiched between the decorative panel and the building wall without being crushed, so that it can be used in construction Insulation;
本发明中，气凝胶复合卷材的保温效果远好于现有的无机多孔材料，很薄一层(2-5厘米)就能满足建筑保温需求，这减少了材料消耗、降低了成本、并减少了建筑保温层对可居住空间的挤占；In the present invention, the thermal insulation effect of the aerogel composite coil material is much better than that of the existing inorganic porous materials, and a very thin layer (2-5 cm) can meet the thermal insulation requirements of buildings, which reduces material consumption, reduces costs, And reduce the occupation of the habitable space by the building insulation layer;
本发明中，气凝胶复合卷材很薄一层就能满足建筑保温需求，且气凝胶复合卷材密度极低，因此整个保温层的自重极小；保温层安装过程中无需高强度的锚固件，用简单的锚固件甚至胶水就能满足安装需求，不需要破坏建筑墙面，也不需要对建筑墙面进行强化改造以满足悬挂保温层的需求；这使得本发明中的气凝胶复合卷材几乎没有使用限制，可在现有建筑基础上随意加装，并且可由个人住户自行完成安装，从而彻底解决了占绝对多数的存量建筑的保温问题；In the present invention, a thin layer of the aerogel composite coil can meet the building insulation requirements, and the density of the aerogel composite coil is extremely low, so the self-weight of the entire insulation layer is extremely small; no high-strength insulation is required during the installation of the insulation layer. The anchor can meet the installation requirements with simple anchors or even glue, and it does not need to damage the building wall, nor does it need to strengthen the building wall to meet the needs of suspending the insulation layer; this makes the aerogel in the present invention. There are almost no restrictions on the use of composite coils, which can be installed at will on the basis of existing buildings, and can be installed by individual residents themselves, thus completely solving the problem of thermal insulation of the overwhelming majority of existing buildings;
本发明中，气凝胶毡暴露在外的面上有大量细微绒毛，因而像荷叶那样不易沾水，水很难进入气凝胶毡内，从而不仅起到保温效果，还很大程度上增强了建筑的防水能力；且无机的气凝胶毡化学性质极为稳定，完全不燃，完全不会受潮发霉，耐候能力极强。In the present invention, the exposed surface of the aerogel felt has a lot of fine fluff, so it is not easy to get wet like a lotus leaf, and it is difficult for water to enter the aerogel felt, which not only has a thermal insulation effect, but also greatly enhances the The waterproof ability of the building is improved; and the chemical properties of the inorganic aerogel felt are extremely stable, completely non-flammable, completely free from moisture and mildew, and extremely weather-resistant.
附图说明Description of drawings
图1是本发明一种反辐射气凝胶复合卷材的结构示意图；Fig. 1 is the structural representation of a kind of anti-radiation aerogel composite coil material of the present invention;
图2是支撑块在使用时的结构示意图；Fig. 2 is the structural representation of support block when in use;
图3是开有与支撑块一一对应的预留孔的气凝胶复合卷材的结构示意图；3 is a schematic structural diagram of an aerogel composite coiled material with reserved holes corresponding to support blocks one-to-one;
其中，1-气凝胶复合卷材，11-气凝胶毡，12-金属箔，13-支撑块，14-预留孔，2-结构胶，3-饰面板，4-建筑墙体Among them, 1- aerogel composite membrane, 11- aerogel felt, 12- metal foil, 13- support block, 14- reserved hole, 2- structural adhesive, 3- decorative panel, 4- building wall
具体实施方式Detailed ways
如图1所示，一种反辐射气凝胶复合卷材，包括气凝胶毡11，气凝胶毡11的上下表面分别包裹有金属箔12。As shown in FIG. 1 , an anti-radiation aerogel composite roll includes an aerogel felt 11 , and the upper and lower surfaces of the aerogel felt 11 are respectively wrapped with metal foils 12 .
注意这里的金属箔12的作用，不仅仅在于阻断热辐射，还在于对气凝胶毡11起到保护作用，因此应在不影响弯折且加工条件允许的前提下做厚一些，至少应做到用指甲划不破的程度，以在搬运及裁切过程中保持完整。Note that the role of the metal foil 12 here is not only to block heat radiation, but also to protect the aerogel felt 11, so it should be thicker under the premise that the bending is not affected and the processing conditions allow, at least Make it unbreakable with a fingernail to keep it intact during handling and cutting.
气凝胶毡11与金属箔12通过柔性胶粘剂胶接连接述，柔性胶粘剂填满气凝胶毡11与金属箔12之间的空隙。这里柔性胶粘剂指的是固化后仍保持柔软的胶粘剂，选用柔性胶粘剂的作用有两点，其一为避免影响气凝胶毡11的弯折，其二为形成覆盖气凝胶毡11表面的胶膜，对气凝胶毡11的表面起到约束和保护的作用，防止其“掉粉”及碎裂。The aerogel felt 11 and the metal foil 12 are glued and connected by a flexible adhesive, and the flexible adhesive fills the gap between the aerogel felt 11 and the metal foil 12 . The flexible adhesive here refers to the adhesive that remains soft after curing. There are two functions for selecting the flexible adhesive. One is to avoid affecting the bending of the aerogel felt 11 , and the other is to form an adhesive covering the surface of the aerogel felt 11 . The membrane plays a role in constraining and protecting the surface of the aerogel felt 11, preventing it from "powdering" and breaking.
气凝胶毡11的材质为憎水气凝胶，柔性胶粘剂为防水胶，以满足防水要求。目前市面上的无机气凝胶产品普遍憎水，因为市面上现有的无机气凝胶产品表面普遍带有细微的绒毛，像荷叶一样不会留住水。有机的气凝胶产品，如一些纤维素气凝胶不憎水，但建筑上有防火需求，不会用到这类气凝胶。The material of the aerogel felt 11 is hydrophobic aerogel, and the flexible adhesive is waterproof glue to meet waterproof requirements. The inorganic aerogel products currently on the market are generally hydrophobic, because the surfaces of the existing inorganic aerogel products on the market generally have fine fluff on the surface, which do not retain water like lotus leaves. Organic aerogel products, such as some cellulose aerogels, are not hydrophobic, but there is a need for fire protection in buildings, and such aerogels will not be used.
如图2所示，气凝胶毡11中均匀埋设有用于防止气凝胶毡11被压坏的支撑块13，所述支撑块13内部填充有保温填料。若用到单层凝胶复合卷材，支撑块13的厚度应与单层气凝胶复合卷材1的厚度相同；若用到多层凝胶复合卷材，支撑块13的厚度应与多层气凝胶复合卷材1的总厚度相同。As shown in FIG. 2 , a support block 13 for preventing the aerogel felt 11 from being crushed is evenly embedded in the aerogel felt 11 , and the interior of the support block 13 is filled with thermal insulation fillers. If a single-layer gel composite membrane is used, the thickness of the support block 13 should be the same as that of the single-layer aerogel composite membrane 1; if a multi-layer gel composite membrane is used, the thickness of the support block 13 should be The overall thickness of the layered aerogel composite web 1 is the same.
本实施例中，支撑块13呈矩阵状排布，用来抵抗饰面板3的挤压。本实施例中，支撑块13为圆形的扁盒，带有螺接的盒盖，内部填充有保温填料；这样不仅能够调整厚度，还能避免支撑块13形成冷桥。这里的饰面板3也起到了保护作用。In this embodiment, the support blocks 13 are arranged in a matrix to resist the extrusion of the decorative panel 3 . In this embodiment, the support block 13 is a round flat box with a screwed cover, and the interior is filled with thermal insulation filler; this can not only adjust the thickness, but also prevent the support block 13 from forming a cold bridge. The veneer 3 here also plays a protective role.
为了满足防火要求，金属箔12、气凝胶毡11、支撑块13、以及防水胶的氧指数不应小于32％，即至少满足B1级防火。本实施例中，金属箔12为铝箔，气凝胶毡11的材质为诸如二氧化硅气凝胶这样的无机气凝胶，防水胶为诸如MS胶这样的耐火胶，支撑块13为B1级防火的工程塑料盒，除支撑块13以外，气凝胶复合卷材1为A级防火保温材料。In order to meet the fire protection requirements, the oxygen index of the metal foil 12 , the aerogel felt 11 , the support block 13 , and the waterproof glue should not be less than 32%, that is, at least B1 class fire protection is satisfied. In this embodiment, the metal foil 12 is aluminum foil, the material of the aerogel felt 11 is inorganic aerogel such as silica aerogel, the waterproof glue is refractory glue such as MS glue, and the support block 13 is B1 grade For the fireproof engineering plastic box, except for the support block 13, the aerogel composite coil 1 is a class A fireproof and thermal insulation material.
一种墙面保温层的施工方法，用于在建筑墙体4上安装上述的一种反辐射气凝胶复合卷材作为保温材料，并包括以下步骤：A construction method of a wall insulation layer is used for installing the above-mentioned anti-radiation aerogel composite coil material on a building wall 4 as a thermal insulation material, and includes the following steps:
步骤一：在建筑墙面上用结构胶2粘贴安装支撑块13；Step 1: Paste and install the support block 13 on the building wall with structural adhesive 2;
步骤二：将开有如图3所示与支撑块13一一对应的孔的气凝胶复合卷材1安装到建筑墙面上，使支撑块13进入与其对应的孔；相邻的气凝胶复合卷材1对接连接，接缝处通过铝箔胶带密封。Step 2: Install the aerogel composite coil 1 with the holes corresponding to the support blocks 13 one-to-one as shown in FIG. 3 on the building wall, so that the support blocks 13 enter the corresponding holes; the adjacent aerogel The composite coil 1 is butt-joined, and the seam is sealed with aluminum foil tape.
步骤二包括以下分步骤： Step 2 includes the following sub-steps:
步骤2.1：在建筑墙面安装线管与线盒；这里的线管应扁一些，应整体位于第一层气凝胶复合卷材1外表面以内；线盒也应薄一些，最好与饰面板3外表面平齐；Step 2.1: Install the wire tube and wire box on the building wall; the wire tube here should be flat, and should be located within the outer surface of the first layer of aerogel composite coil 1; the wire box should also be thinner, preferably with the decorative The outer surface of panel 3 is flush;
步骤2.2：将第一层开有与支撑块13一一对应的孔的气凝胶复合卷材1安装到建筑墙面上，使支撑块13进入与其对应的孔，并在第一层气凝胶复合卷材1上开避位口使线管与线盒露出；Step 2.2: Install the first layer of the aerogel composite membrane 1 with holes corresponding to the support blocks 13 on the building wall, so that the support blocks 13 enter the corresponding holes, and aerogels on the first layer An escape opening is opened on the rubber composite coil 1 to expose the wire tube and the wire box;
步骤2.3：将第二层开有与支撑块13一一对应的孔的气凝胶复合卷材1安装到建筑墙面上，使支撑块13进入与其对应的孔，将线管压在第二层气凝胶复合卷材1下，并在第二层气凝胶复合卷材1上开避位口使线盒露出；Step 2.3: Install the second layer of the aerogel composite coil 1 with holes corresponding to the support blocks 13 on the building wall, make the support blocks 13 enter the corresponding holes, and press the line pipe on the second layer. The second layer of aerogel composite coil material 1 is placed under the layer 1, and an escape opening is opened on the second layer of aerogel composite coil material 1 to expose the wire box;
步骤2.4：用铝箔胶带封堵气凝胶复合卷材1的接缝。Step 2.4: Seal the seams of the aerogel composite roll 1 with aluminum foil tape.
步骤三：在支撑块13上用结构胶2粘贴饰面板3，然后在线盒上贴一层气凝胶复合卷材1。Step 3: Paste the decorative panel 3 on the support block 13 with the structural adhesive 2, and then paste a layer of aerogel composite membrane 1 on the wire box.
注意，这里的建筑墙体4指的是建筑上一切需要保温的墙，包括天花板。Note that the building wall 4 here refers to all the walls in the building that need thermal insulation, including the ceiling.
以上所述的实施例仅仅是对本发明的优选实施方式进行描述，并非对本发明的范围进行限定，在不脱离本发明设计精神的前提下，本领域普通技术人员对本发明的技术方案作出的各种变形和改进，均应落入本发明权利要求书确定的保护范围内。The above-mentioned embodiments merely describe the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, those of ordinary skill in the art can make various modifications to the technical solutions of the present invention. Variations and improvements should fall within the protection scope determined by the claims of the present invention.

Claims (10)

  1. 一种反辐射气凝胶复合卷材，其特征在于：包括气凝胶毡(11)，所述气凝胶毡(11)的上下表面分别包裹有金属箔(12)。An anti-radiation aerogel composite coil material is characterized in that it comprises an aerogel felt (11), and the upper and lower surfaces of the aerogel felt (11) are respectively wrapped with metal foils (12).
  2. 根据权利要求1所述的一种反辐射气凝胶复合卷材，其特征在于：所述气凝胶毡(11)与金属箔(12)通过柔性胶粘剂胶接连接，所述柔性胶粘剂填满气凝胶毡(11)与金属箔(12)之间的空隙。The anti-radiation aerogel composite roll material according to claim 1, characterized in that: the aerogel felt (11) and the metal foil (12) are glued and connected by a flexible adhesive, and the flexible adhesive is filled with The space between the aerogel felt (11) and the metal foil (12).
  3. 根据权利要求2所述的一种反辐射气凝胶复合卷材，其特征在于：所述气凝胶毡(11)的材质为憎水气凝胶，所述柔性胶粘剂为防水胶。The anti-radiation aerogel composite coil material according to claim 2, wherein the material of the aerogel felt (11) is hydrophobic aerogel, and the flexible adhesive is waterproof glue.
  4. 根据权利要求1所述的一种反辐射气凝胶复合卷材，其特征在于：所述气凝胶毡(11)中均匀埋设有用于防止气凝胶毡(11)被压坏的支撑块(13)，所述支撑块(13)内部填充有保温填料。The anti-radiation aerogel composite coil material according to claim 1, wherein a support block for preventing the aerogel felt (11) from being crushed is evenly embedded in the aerogel felt (11). (13), the support block (13) is filled with thermal insulation fillers.
  5. 根据权利要求1所述的一种反辐射气凝胶复合卷材，其特征在于：所述金属箔(12)为铝箔。The anti-radiation aerogel composite coil material according to claim 1, characterized in that: the metal foil (12) is an aluminum foil.
  6. 根据权利要求3所述的一种反辐射气凝胶复合卷材，其特征在于：所述金属箔(12)、气凝胶毡(11)、以及防水胶的氧指数不小于32％。The anti-radiation aerogel composite coil material according to claim 3, wherein the oxygen index of the metal foil (12), the aerogel felt (11), and the waterproof glue is not less than 32%.
  7. 根据权利要求6所述的一种反辐射气凝胶复合卷材，其特征在于：所述气凝胶毡(11)的材质为无机气凝胶。The anti-radiation aerogel composite roll material according to claim 6, wherein the material of the aerogel felt (11) is inorganic aerogel.
  8. 一种墙面保温层的施工方法，其特征在于：选用如权利要求4所述的一种反辐射气凝胶复合卷材作为保温材料，并包括以下步骤：A construction method of wall insulation layer, characterized in that: selecting a kind of anti-radiation aerogel composite coil material as claimed in claim 4 as the insulation material, and comprising the following steps:
    步骤一：在建筑墙面上安装支撑块(13)；Step 1: Install the support block (13) on the building wall;
    步骤二：将开有与支撑块(13)一一对应的孔的气凝胶复合卷材(1)安装到建筑墙面上，使支撑块(13)进入与其对应的孔；Step 2: install the aerogel composite coil (1) with holes corresponding to the support blocks (13) one-to-one on the building wall, so that the support blocks (13) enter the corresponding holes;
    步骤三：在支撑块(13)上安装饰面板(3)。Step 3: Install the decorative panel (3) on the support block (13).
  9. 根据权利要求8所述的一种墙面保温层的施工方法，步骤二包括以下分步骤：A kind of construction method of wall insulation layer according to claim 8, step 2 comprises the following sub-steps:
    步骤2.1：在建筑墙面安装线管与线盒；Step 2.1: Install conduits and boxes on the building wall;
    步骤2.2：将第一层开有与支撑块(13)一一对应的孔的气凝胶复合卷材(1)安装到建筑墙面上，使支撑块(13)进入与其对应的孔，并在第一层气凝胶复合卷材(1)上开避位口使线管与线盒露出；Step 2.2: Install the first layer of the aerogel composite coil (1) with holes corresponding to the support blocks (13) on the building wall, so that the support blocks (13) enter the corresponding holes, and A shelter opening is opened on the first layer of the aerogel composite coil material (1) to expose the wire tube and the wire box;
    步骤2.3：将第二层开有与支撑块(13)一一对应的孔的气凝胶复合卷材(1)安装到建筑墙面上，使支撑块(13)进入与其对应的孔，将线管压在第二层气凝胶复合卷材(1)下，并在第二层气凝胶复合卷材(1)上开避位口使线盒露出；Step 2.3: Install the second layer of the aerogel composite coil (1) with holes corresponding to the support blocks (13) on the building wall, so that the support blocks (13) enter the corresponding holes, and place the The wire tube is pressed under the second layer of aerogel composite coiled material (1), and an escape opening is opened on the second layer of aerogel composite coiled material (1) to expose the wire box;
    步骤2.4：用铝箔胶带封堵气凝胶复合卷材(1)的接缝。Step 2.4: Seal the seam of the aerogel composite roll (1) with aluminum foil tape.
  10. 根据权利要求9所述的一种墙面保温层的施工方法，其特征在于：步骤二中，线管整体位于第一层气凝胶复合卷材(1)外表面以内，线盒的厚度不超过各层气凝胶复合卷材(1)与饰面板(3)的总厚度。The construction method of a wall surface thermal insulation layer according to claim 9, characterized in that: in step 2, the wire tube is integrally located within the outer surface of the first layer of the aerogel composite coil (1), and the thickness of the wire box is not It exceeds the total thickness of each layer of the aerogel composite membrane (1) and the decorative panel (3).
PCT/CN2021/090400 2021-04-12 2021-04-28 Anti-radiation aerogel composite coiled material and application method thereof in wall WO2022217651A1 (en)

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