Highly versatile plywood insulation material

Abstract

To solve the problem in which a 3 mm thick, ultra-thin insulation material utilizing aerogel, the first of the technologies supporting this invention, is an excellent material that exhibits high thermal insulation effect upon installation in building walls, ceilings, or floors even when used alone, yet its limited strength restricted its applications.SOLUTION: By sandwiching an aerogel insulation material, whose limited strength previously restricted its applications, between two layers of reinforced corrugated cardboard to form a plywood material, strength, which had been the biggest challenge, is enhanced. Furthermore, combining the inherent properties of aerogel and reinforced corrugated cardboard creates a synergistic effect. This not only further strengthens thermal insulation but also, while maintaining lightweight characteristics, provides soundproofing, moisture resistance, shock absorption, fire resistance, and fireproofing, etc. This dramatically increases applicability and versatility as a material.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] This invention solves the strength problem that has hindered the versatility of aerogel by sandwiching an existing insulating material made from aerogel between two sheets of reinforced cardboard. This not only solves the problem of strength that has hindered the versatility of aerogel, but also creates a synergistic effect with the insulating properties of the reinforced cardboard, resulting in properties such as pressure resistance and burst strength, high moisture resistance, airtightness, sound insulation, shock absorption, fire resistance, and fire prevention, while maintaining light weight, thereby increasing the applicability and versatility of the material. [Background technology]

[0002] The first existing technology relevant to this invention is the technology for processing aerogel into 3 mm thick plates. Generally, aerogel is a low-density structure (dried gel) obtained using supercritical drying, with more than 90% of its volume being empty space, and within this space is a particle structure separated by pores several tens of nanometers in diameter. The technology for confining these aerogel particles within glass fiber, then coating them to prevent the particles from escaping, and processing them into sheet (plate) form the basis for aerogel insulation materials. The greatest feature of this aerogel insulation is the low thermal conductivity of the gas phase (the air inside). It has lower thermal conductivity than general high-performance insulation materials, and despite being only 3 mm thin, it exhibits insulation properties equal to or better than glass wool, which is commonly used as an insulating material and is over 100 mm thick. In addition to its insulating properties, its outstanding features include fire resistance and non-combustibility equivalent to that of gypsum board, high sound insulation and shock absorption, and water repellency, which is also used in firefighting uniforms.

[0003] The second existing technology that supports this invention is "reinforced corrugated cardboard." Reinforced corrugated cardboard is a paperboard made by gluing together a paper surface (surface liner) and a paper surface (back liner) with adhesive. It is made using a liner that is stronger and thicker than regular corrugated cardboard, and is characterized by its hardness, similar to wood, and the fact that the liner does not dent even when pressed with a finger. This difference in hardness is due to the use of a water-resistant long fiber liner, which gives it high pressure resistance, burst resistance, moisture resistance, and airtightness. While regular cardboard is made from recycled waste paper, the reinforced cardboard used in this invention uses a waterproof long-fiber liner made from approximately 95% virgin pulp, and the compressive strength of a 500mm (height) x 500mm (width) x 500mm (depth) box is 0.3t for a single-layer (6mm thick), 1.6t for a double-layer (10mm thick), and 2.6t for a triple-layer (15mm thick), making it as strong as wood but one-third the weight. This means that it can be used in ways not only like regular cardboard, but also for packaging boxes for heavy or complex-shaped items, pallets, and other applications previously unthinkable for regular cardboard, making it versatile. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Name: Thermal insulation material, thermal insulation structure, and building construction method Application number: Patent application 2021-093948 Our office reference number: K02119 [Patent Document 2] [Non-patent literature]

[0005] [Non-Patent Document 1] [Non-patent document 2] Summary of the Invention [Problem to be solved by the invention]

[0006] The first of the technologies supporting this invention, mentioned above, is a 3mm-thick ultra-thin insulation material using aerogel. It is an excellent material that provides high insulation when applied to the walls, ceilings, and floors of buildings, but it has the problem of being limited in its applications due to its lack of strength. The present invention solves the above problems. [Means for solving the problem]

[0007] The aerogel insulation material is sandwiched between two sheets of reinforced cardboard to create a plywood material. [Effects of the Invention]

[0008] The effects of the present invention are as follows. (1) Until now, aerogel insulation materials have been limited in their applications due to their lack of strength. By sandwiching the material between two sheets of reinforced cardboard, the strength issue is resolved and its versatility is expanded.

[0009] (2) In addition to the inherent high insulating properties of aerogel material, the insulating effect is further enhanced by the synergistic effect with the insulating properties inherent in reinforced cardboard.

[0010] (3) Not only does it have a high insulating effect, but it also has the pressure resistance and burst resistance of reinforced cardboard, as well as high moisture resistance and sealing performance, making it a highly versatile, highly insulating plywood material. [Brief explanation of the drawings]

[0011] [Figure 1] Aerogel insulation material sandwiched between two sheets of reinforced cardboard. DETAILED DESCRIPTION OF THE INVENTION

[0012] The size (area) and shape of the plywood material completed by this invention can be freely set according to the purpose, and it can be assembled without using nails or tools, or it can be processed into various forms for various purposes by applying adhesives or coatings, etc. [Example]

[0013] (1) The strength of this invention allows it to be used as a simple house for evacuation shelters, etc., due to its high insulation and high degree of design freedom. In this case, it is possible to design a "click-together" design that does not require nails or tools, so that it can be easily assembled on-site. In addition, because it is lightweight, even two women can assemble it in about 20 minutes.

[0014] (2) Since temperature control in land-based aquaculture requires a great deal of cost and effort, the product of the present invention, which has a high insulating effect, is highly useful. When manufacturing a water tank for land-based aquaculture, the inside of the tank can be made completely waterproof. [Industrial Applicability]

[0015] The industrial application of the present invention can be considered to be in a wide range of fields, including not only conventional applications as a thermal insulation material for construction, but also applications requiring a certain level of strength and thermal insulation, such as simple prefabricated houses that are useful in evacuation shelters during disasters, simple indoor soundproof rooms, cooler boxes and thermal insulation boxes, transport containers that require high thermal insulation, and aquaculture tanks for land-based aquaculture that require both water repellency and thermal insulation properties. [Explanation of symbols]

[0016] (1) Aerogel insulation material (2) Reinforced cardboard [Accession number]

[0017] [Sequence List Free Text]

Claims

[Claim 1] This invention uses an insulating material made from aerogel, which has low thermal conductivity and is only 3 mm thick, and exhibits insulating properties equal to or better than glass wool, a commonly used insulating material, which is 100 mm or thicker, and a liner that is stronger and thicker than ordinary cardboard.The liner does not dent even when pressed with a finger, and the insulating material made from aerogel is sandwiched between two sheets of reinforced cardboard, which is as hard as wood.This overcomes the low strength that has hindered the versatility of aerogel materials, thanks to the pressure resistance and burst strength of reinforced cardboard, making it possible to increase the applicability and versatility of the new material.

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