WO2022259785A1 - 潜熱蓄熱石膏板、仕切り構造体 - Google Patents

潜熱蓄熱石膏板、仕切り構造体 Download PDF

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Publication number
WO2022259785A1
WO2022259785A1 PCT/JP2022/019429 JP2022019429W WO2022259785A1 WO 2022259785 A1 WO2022259785 A1 WO 2022259785A1 JP 2022019429 W JP2022019429 W JP 2022019429W WO 2022259785 A1 WO2022259785 A1 WO 2022259785A1
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Prior art keywords
heat storage
latent heat
gypsum
gypsum plate
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2022/019429
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English (en)
French (fr)
Japanese (ja)
Inventor
克己 新見
洋介 佐藤
大介 内藤
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Yoshino Gypsum Co Ltd
Original Assignee
Yoshino Gypsum Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yoshino Gypsum Co Ltd filed Critical Yoshino Gypsum Co Ltd
Priority to AU2022289781A priority Critical patent/AU2022289781A1/en
Priority to JP2023527563A priority patent/JPWO2022259785A1/ja
Priority to CA3219132A priority patent/CA3219132A1/en
Priority to KR1020237041237A priority patent/KR20240018450A/ko
Priority to EP22819971.7A priority patent/EP4328017A4/en
Priority to CN202280039319.8A priority patent/CN117412939A/zh
Priority to US18/560,518 priority patent/US12492330B2/en
Publication of WO2022259785A1 publication Critical patent/WO2022259785A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/02—Materials undergoing a change of physical state when used
    • C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
    • C09K5/063—Materials absorbing or liberating heat during crystallisation; Heat storage materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/85—Coating or impregnation with inorganic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
    • B32B13/04—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B11/00—Calcium sulfate cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
    • C04B41/48—Macromolecular compounds
    • C04B41/4857—Other macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B41/4869—Polyvinylalcohols, polyvinylacetates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5024—Silicates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5076—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with masses bonded by inorganic cements
    • C04B41/5089—Silica sols, alkyl, ammonium or alkali metal silicate cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
    • C04B41/61—Coating or impregnation
    • C04B41/65—Coating or impregnation with inorganic materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
    • C04B41/61—Coating or impregnation
    • C04B41/65—Coating or impregnation with inorganic materials
    • C04B41/68—Silicic acid; Silicates
    • 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
    • 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
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/043—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of plaster
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/44—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose
    • E04C2/52—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose with special adaptations for auxiliary purposes, e.g. serving for locating conduits
    • E04C2/526—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose with special adaptations for auxiliary purposes, e.g. serving for locating conduits with adaptations not otherwise provided for, for connecting, transport; for making impervious or hermetic, e.g. sealings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/0056—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using solid heat storage material
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
    • C04B2111/0062—Gypsum-paper board like materials
    • C04B2111/00629—Gypsum-paper board like materials the covering sheets being made of material other than paper

Definitions

  • the present invention relates to latent heat storage gypsum plates and partition structures.
  • a latent heat storage material is added to a building surface material used indoors, such as a gypsum board, and heat energy during the day is stored in the latent heat storage material, and the heat stored in the latent heat storage material when the temperature drops at night. Building materials that suppress changes in indoor temperature by releasing energy have been studied in the past.
  • Patent Document 1 discloses a gypsum board comprising two cover layers and a gypsum core, wherein the gypsum core contains predetermined microcapsules and polymers.
  • an object of one aspect of the present invention is to provide a latent heat storage gypsum plate that is nonflammable and has excellent heat storage capacity.
  • a gypsum slab having a first main surface and a second main surface opposite to the first main surface; a latent heat storage layer disposed on at least a portion of the first main surface of the gypsum plate and containing a latent heat storage material and a binder; According to the heat storage amount measurement specified in ASTM C 1784, the heat storage amount measured with the measurement temperature range of 15 ° C. or higher and 35 ° C.
  • a latent heat storage gypsum plate having a heat generation performance of class 1 when evaluated with the surface on which the latent heat storage layer is arranged as the back surface in a heat generation test specified in JIS A 6901 (2014).
  • FIG. 1 is a perspective view of a latent heat storage gypsum board according to an embodiment of the present invention.
  • FIG. 2A is an explanatory diagram of a partition structure according to an embodiment of the present invention.
  • FIG. 2B is an explanatory diagram of a partition structure according to an embodiment of the present invention.
  • FIG. 2C is an illustration of a partition structure according to an embodiment of the present invention.
  • FIG. 3 is an explanatory diagram of a test method for the fluidity of a latent heat storage material-containing coating material.
  • FIG. 4 is an explanatory diagram of a test method for leakage of the latent heat storage material during screwing.
  • FIG. 5 is an explanatory diagram of the relationship between the thickness X of the gypsum plate, the specific gravity Y of the gypsum plate, and the heat storage amount Z of the latent heat storage gypsum plate.
  • the latent heat storage gypsum board 10 of the present embodiment can have a gypsum board 11 and a latent heat storage layer 12 .
  • the gypsum slab 11 has a first major surface 11A and a second major surface 11B opposite the first major surface 11A.
  • the gypsum plate 11 can have a plate-like shape as shown in FIG. 1, for example.
  • the first main surface 11A and the second main surface 11B are surfaces that intersect the thickness direction and have the largest area.
  • the latent heat storage layer 12 can be arranged on at least part of the first main surface 11A of the gypsum plate 11 . That is, the latent heat storage layer 12 can be arranged so as to cover at least part of the first main surface 11A of the gypsum plate 11 .
  • the latent heat storage layer 12 is preferably formed directly on the first main surface 11A of the gypsum plate 11 . That is, it is preferable not to place other members between the gypsum plate 11 and the latent heat storage layer 12 .
  • the latent heat storage gypsum plate 10 of the present embodiment has the latent heat storage layer 12 on the first main surface 11A of the gypsum plate 11 separately from the gypsum plate 11 as described above. Therefore, the latent heat storage layer 12 may not be provided on the second main surface 11B side of the gypsum plate 11 . As a result, when the gypsum plate 11 is heated from the second main surface 11B side, the nonflammable effect of the gypsum plate 11 can be exhibited, so that the nonflammable latent heat storage gypsum plate can be easily obtained.
  • the latent heat storage layer 12 can provide an excellent latent heat storage gypsum plate.
  • the second main surface 11B side is the surface where the gypsum plate 11 is exposed, so it is easy to ensure noncombustibility. For this reason, compared to the case of adding the latent heat storage material in the gypsum plate 11, restrictions on the amount of the latent heat storage material added to the latent heat storage layer 12 and the like for making the latent heat storage gypsum plate nonflammable are relaxed. be. As a result, it is possible to obtain a latent heat storage gypsum board having particularly excellent heat storage capacity.
  • the latent heat storage gypsum board having the above configuration it is possible to obtain a latent heat storage gypsum board that is nonflammable and has excellent heat storage capacity.
  • the latent heat storage layer 12 is formed over the entire first main surface 11A of the gypsum plate 11 in FIG. 1, but the configuration is not limited thereto.
  • the size and shape of the latent heat storage layer 12 can be selected according to the degree of heat storage required for the latent heat storage gypsum plate 10 . Therefore, the latent heat storage layer 12 may be arranged on the entire first main surface 11A of the gypsum plate 11, or may be arranged only on a part of the first main surface 11A.
  • the shape of the latent heat storage layer does not need to have a continuous surface shape, and the shape of the latent heat storage layer may be, for example, a linear shape or a dot shape.
  • the latent heat storage gypsum slabs of this embodiment can also have multiple discontinuous latent heat storage layers.
  • the latent heat storage layer 12 is not arranged on the second main surface 11B of the gypsum plate 11 and the gypsum plate 11 is exposed. Moreover, it is preferable that the latent heat storage layer 12 is not arranged on the side surface 11C positioned between the first main surface 11A and the second main surface 11B of the gypsum plate 11, and the gypsum plate 11 is exposed. However, the latent heat storage layer can also be provided on the second main surface 11B and the side surface 11C as long as it does not affect the nonflammability of the latent heat storage gypsum plate.
  • the second main surface 11B and the side surface 11C have a latent heat storage layer formed by unintentional adhesion of the latent heat storage material coating during the manufacturing process.
  • the latent heat storage gypsum board 11 is a plate-like body containing gypsum, and various gypsum plates can be used as the gypsum plate 11 .
  • gypsum board 11 for example, a glass mat gypsum board, a glass fiber nonwoven fabric containing gypsum-containing board, a gypsum board defined by JIS A 6901 (2014), or lighter or heavier than a gypsum board defined by JIS A 6901 (2014).
  • Gypsum board hereafter, the gypsum board specified by the above JIS and the gypsum board that is lighter or heavier than the gypsum board specified by JIS are collectively referred to as "gypsum board"
  • gypsum board gypsum board
  • the glass mat gypsum board is, for example, a gypsum board whose surface is covered with a glass mat.
  • a gypsum-containing board containing glass fiber nonwoven fabric is, for example, a gypsum board in which glass fiber nonwoven fabric (glass tissue) is embedded on the surface side.
  • gypsum board is, for example, a gypsum board whose surface is coated with board base paper.
  • the gypsum board mentioned above as a candidate for the gypsum board 11 means a gypsum board that is not classified as a glass mat gypsum board, for example, that does not have a surface material or the like.
  • the gypsum board 11 is preferably any one selected from, for example, a glass mat gypsum board, a glass fiber nonwoven fabric containing gypsum-containing board, a gypsum board, a gypsum board, and a slag gypsum board.
  • the gypsum plate 11 does not contain a latent heat storage material.
  • the thickness X of the gypsum plate 11 is not particularly limited, but from the viewpoint of improving the noncombustibility of the latent heat storage gypsum plate 10, the thickness X of the gypsum plate 11 is preferably 9.0 mm or more, more preferably 9.5 mm or more. preferable.
  • the upper limit of the thickness X of the gypsum plate 11 is not particularly limited either, but the latent heat storage gypsum plate of the present embodiment can be used for partition structures such as walls, ceilings, and floors that define indoor spaces. Therefore, the thickness X of the gypsum plate 11 is preferably 15.0 mm or less from the viewpoint of suppressing narrowing of the indoor space when the gypsum plate 11 is applied to walls, ceilings, floors, and the like.
  • the specific gravity of the gypsum plate 11 is not particularly limited, the specific gravity of the gypsum plate 11 is preferably 0.35 or more, more preferably 0.65 or more, in order to improve the non-combustibility of the latent heat storage gypsum plate 10. .
  • the latent heat storage layer can contain a latent heat storage material and a binder.
  • the latent heat storage layer can be composed only of the above latent heat storage material and a binder, but it further contains optional components in addition to the latent heat storage layer and the binder according to the required properties and requirements in the manufacturing process. You can also (Latent heat storage material)
  • a latent heat storage material is a material in which at least a part of the material is capable of utilizing the latent heat absorbed and released during a phase change. A material that can release thermal energy when used can be preferably used.
  • latent heat storage materials include materials in which latent heat storage substances are encapsulated in microcapsules, materials in which inorganic porous materials are impregnated with latent heat storage substances, molten mixtures of thermoplastic resins and latent heat storage substances, olefin polymers, and olefins. It is possible to use one or more selected from crosslinked products of system polymers and the like.
  • the latent heat storage material in the material in which the latent heat storage material is encapsulated in microcapsules is a material that can utilize the latent heat absorbed and released during phase change for heat storage.
  • the latent heat storage material is not particularly limited, for example, one or more selected from paraffin compounds, fatty acids, fatty acid esters, aliphatic ethers, aliphatic ketones, aliphatic alcohols, olefinic polymers, inorganic hydrates, etc. can be used.
  • the above materials may be used alone, or two or more of them may be used in combination.
  • the latent heat storage material can also be used by encapsulating it in microcapsules.
  • the material of the microcapsules is not particularly limited, for example, ethylene-vinyl alcohol copolymer, styrene-butadiene copolymer, (meth)acrylonitrile-butadiene copolymer, hydrogenated conjugated diene (co)polymer, poly( One or more selected from meth)acrylate, polyolefin, polystyrene, poly(meth)acrylonitrile, polyamide, poly(meth)acrylamide, ethylcellulose, polyurethane, polyurea, polyurethaneurea, melamine resin, gelatin, carboxymethylcellulose, gum arabic, etc. can be used.
  • (meth)acrylonitrile means either one or both of methacrylonitrile and acrylonitrile.
  • the notation of (meth)acrylate means one or both of methacrylate and acrylate.
  • the notation of (meth)acrylamide means one or both of methacrylamide and acrylamide. In the case of a (co)polymer, it means either one or both of a copolymer and a homopolymer.
  • the content of the latent heat storage material in the latent heat storage layer is not particularly limited, and can be arbitrarily selected according to the type of latent heat storage material used and the amount of heat storage required for the latent heat storage gypsum plate.
  • the latent heat storage layer 12 preferably contains the latent heat storage material at a rate of 10 parts by mass or more and 69 parts by mass or less, and at a rate of 15 parts by mass or more and 69 parts by mass or less. It is more preferable to contain it, and it is more preferable to contain it in a ratio of 18 parts by mass or more and 69 parts by mass or less.
  • the heat storage amount of the latent heat storage gypsum plate can be sufficiently increased without excessively increasing the thickness of the latent heat storage layer.
  • the latent heat storage layer can have a uniform film shape, and the adhesion to the underlying gypsum plate can be enhanced.
  • the latent heat storage layer preferably contains the latent heat storage material.
  • the binder is not particularly limited, but may be, for example, one or more selected from inorganic binders and organic binders.
  • organic binders examples include vinyl acetate binders and polyester binders.
  • inorganic binders examples include alkali metal silicate binders, phosphate binders, silica sol binders, and the like.
  • the binder it is preferable to contain one or more selected from alkali metal silicate-based binders and vinyl acetate-based binders from the viewpoint of handling properties and the like.
  • the latent heat storage layer can also contain any component other than the latent heat storage material and the binder.
  • the latent heat storage layer can also contain inorganic powder, for example.
  • talc can be used as the inorganic powder.
  • the latent heat storage layer By including the inorganic powder in the latent heat storage layer, it is possible to improve the dispersibility and spinnability of the latent heat storage material and the coating material containing the latent heat storage material, which is used when manufacturing the latent heat storage layer. In addition, the uniformity of the blended material in the latent heat storage layer formed by applying the latent heat storage material-containing coating material to the gypsum plate can be enhanced. Furthermore, it is possible to prevent the coating material containing the latent heat storage material from dripping when forming the latent heat storage layer. (Plasticizer)
  • the latent heat storage layer can also contain, for example, a plasticizer.
  • plasticizer is not particularly limited, dibutyl phthalate and the like can be suitably used.
  • a plasticizer has the effect of improving the surface properties of the latent heat storage layer, and can suppress the occurrence of cracks.
  • Characteristics of the latent heat storage gypsum plate (2-1) Heat storage amount The latent heat storage gypsum plate of the present embodiment is measured by measuring the heat storage amount specified in ASTM C 1784 with a measurement temperature range of 15 ° C. or higher and 35 ° C. or lower. The accumulated heat amount is preferably 260 kJ/m 2 or more, more preferably 290 kJ/m 2 or more.
  • the heat storage amount By setting the heat storage amount to 260 kJ/m 2 or more, when the latent heat storage gypsum plate is used as a partition structure that partitions an indoor space such as a ceiling, a wall, or a floor, it is possible to particularly suppress changes in the indoor temperature. .
  • the latent heat storage gypsum plate of the present embodiment is evaluated by the heat generation test specified in JIS A 6901 (2014) with the surface on which the latent heat storage layer is arranged as the back surface. It is preferred to have first class performance.
  • the above exothermic test is specified in Annex A of JIS A 6901 (2014), and the exothermic grade 1 means that the following criteria are satisfied when the heating time is 20 minutes. do.
  • the total calorific value until the end of the heating time is 8 MJ/m 2 or less, there are no cracks or holes that penetrate to the back side that are harmful to fire prevention during the heating time, and the maximum heat generation rate continues for 10 seconds or more during the heating time. Do not exceed 200 kW/ m2 .
  • the thickness and specific gravity of the gypsum plate are parameters that affect the non-combustibility of the latent heat storage gypsum plate. Therefore, as described above, the thickness X, the specific gravity Y, and the heat storage amount Z of the gypsum plate have the relationship of the above formula (1), so that the latent heat storage gypsum plate is particularly excellent in nonflammability and heat storage amount. be able to.
  • the thickness X of the gypsum plate 11 corresponds to the thickness X in FIG. It is preferable to compare the values of the right side and the left side of the above formula (1) after performing rounding so that the numbers of digits after the decimal point are the same. It is preferable that the values of the right side and the left side of the above equation (1) be calculated by, for example, rounding off to the second decimal place. That is, it is preferable to compare the right side and the left side of the above equation (1) after performing rounding so that each value has a value up to the first decimal place.
  • Method for producing latent heat storage gypsum board Next, one structural example of the method for manufacturing the latent heat storage gypsum board of the present embodiment will be described. The above-described latent heat storage gypsum board can be manufactured by the method for manufacturing a latent heat storage gypsum board of the present embodiment. Therefore, some of the items already explained will be omitted.
  • a latent heat storage material-containing coating material containing a latent heat storage material and a binder is applied to at least a portion of the first main surface of the gypsum board, and the latent heat storage layer can have a latent heat storage layer forming step of forming
  • the latent heat storage material-containing coating material can contain the components that the latent heat storage layer can suitably contain as already described.
  • the latent heat storage material-containing coating material may further contain a solvent such as water, if necessary, in order to adjust and ensure fluidity during coating.
  • the means and method for applying the latent heat storage material-containing coating material to at least part of the first main surface of the gypsum plate are not particularly limited. However, it is preferable to apply so that the thickness of the latent heat storage layer to be formed is uniform. Therefore, in the latent heat storage layer forming step, the coating method for applying the coating material containing the latent heat storage material is not particularly limited. Therefore, it can be preferably used.
  • the roll coating is a method in which a latent heat storage material-containing coating material is applied to a rotating roller, and the roller forms a latent heat storage layer on the surface of the gypsum plate.
  • the flow coat means that a coating material containing a latent heat storage material is flowed down from above the gypsum plate being conveyed to the first main surface of the gypsum plate in the form of a thin film to form a latent heat storage layer on the first main surface of the gypsum plate. is a method of forming
  • the blade coat means that the coating material containing the latent heat storage material supplied to the first main surface of the gypsum plate is scraped off with a blade, spread to a desired thickness on the first main surface of the gypsum plate, and the latent heat is This is a method of forming a heat storage layer.
  • the gypsum plate supplied to the latent heat storage layer forming step may be subjected to masking or the like in advance on the portions where the latent heat storage layer is not formed, so that the latent heat storage layer having a desired pattern can be formed.
  • the method for manufacturing the latent heat storage gypsum board of the present embodiment can also have an optional step in addition to the latent heat storage layer forming step described above.
  • the method for manufacturing the latent heat storage gypsum board of the present embodiment includes, if necessary, a drying process for drying the formed latent heat storage layer, and a cutting process for cutting the latent heat storage gypsum board and the raw material gypsum board into arbitrary sizes. and so on.
  • the drying temperature in the drying step is not particularly limited, it is preferably 100°C or lower, more preferably 70°C or lower, for example. This is because by setting the drying temperature to 100° C. or less, it is possible to suppress problems such as warping of the latent heat storage gypsum plate and cracking of the latent heat storage layer.
  • the lower limit of the drying temperature is not particularly limited, it is preferably 20° C. or higher, more preferably 30° C. or higher, from the viewpoint of productivity.
  • the partition structure of this embodiment is a partition structure that partitions an indoor space.
  • the partition structure of this embodiment can have a latent heat storage gypsum board and a base material that supports the latent heat storage gypsum board.
  • the latent heat storage gypsum plate included in the partition structure of the present embodiment the latent heat storage gypsum plate described above can be used. Then, the second main surface of the gypsum heat storage gypsum gypsum plate, that is, the surface opposite to the surface provided with the latent heat storage layer can be arranged on the indoor space side.
  • the partition structure 201 of the present embodiment can have the latent heat storage gypsum board 10 and the base material 21 supporting the latent heat storage gypsum board 10 .
  • the latent heat storage gypsum plate 10 may be fixed to the base material 21 with screws, nails, or the like.
  • the partition structure 201 shown in FIG. 2A can be used, for example, as a wall separating the external space 201A and the indoor space 201B, a ceiling, a floor, or the like.
  • the external space 201A means a space located outside the indoor space 201B, and is not limited to the outdoor space.
  • the second main surface 11B of the gypsum plate 11 of the latent heat storage gypsum plate 10 that is, the surface opposite to the first main surface 11A of the gypsum plate 11 on which the latent heat storage layer 12 is provided, It can be arranged on the space 201B side.
  • the second main surface 11B of the gypsum plate 11 exposed to the indoor space 201B is arranged to provide a partition structure excellent in noncombustibility. be able to.
  • the partition structure 202 of this embodiment shown in FIG. 2B can also have the latent heat storage gypsum board 10 and the base material 21 supporting the latent heat storage gypsum board 10 .
  • the latent heat storage gypsum plate 10 may be fixed to the base material 21 with screws, nails, or the like.
  • the partition structure 202 shown in FIG. 2B can be used, for example, as a wall that partitions two indoor spaces 202A and an indoor space 202B.
  • the second main surface 11B of the gypsum plate 11 of the latent heat storage gypsum plate 10 is arranged on the side of the indoor space 202A and the indoor space 202B, respectively. More specifically, the second main surface 11B of the gypsum plate 11 of the latent heat storage gypsum plate 10 in contact with the indoor spaces 202A, 202B is arranged on the side of the indoor spaces 202A, 202B, respectively.
  • the partition structure 201 since fires and the like usually occur from the indoor space side, the second main surface 11B of the gypsum plate 11 with the gypsum plate 11 exposed should be arranged on the indoor space 202A, 202B side. Thus, a partition structure having excellent noncombustibility can be obtained.
  • the partition structure 203 shown in FIG. 2C can be used, for example, as a ceiling or the like that separates the external space 203A behind the ceiling from the indoor space 203B.
  • the second main surface 11B of the gypsum plate 11 of the latent heat storage gypsum plate 10 is arranged on the indoor space 203B side.
  • partition structure 201 As described for the partition structure 201, fires and the like usually occur from the indoor space side. A partition structure excellent in noncombustibility can be obtained.
  • FIGS. 2A to 2C show an example in which the gypsum plate of the partition structure is composed of only the latent heat storage gypsum plate. You may have a board.
  • the number of gypsum boards included in the partition structure is not particularly limited, and any number of gypsum boards can be provided depending on the location of the partition structure.
  • the partition structure of this embodiment described above has the latent heat storage gypsum plate described above, it can be a partition structure that is nonflammable and excellent in heat storage.
  • the partition structure of this embodiment can be used, for example, for walls, ceilings, floors, and the like.
  • Grade 1 exothermic property means that the following criterion is satisfied when the heating time is 20 minutes.
  • the total calorific value until the end of the heating time is 8 MJ/m 2 or less, there are no cracks or holes that penetrate to the back side that are harmful to fire prevention during the heating time, and the maximum heat generation rate continues for 10 seconds or more during the heating time. Do not exceed 200 kW/ m2 .
  • a cone calorimeter (Toyo Seiki Seisakusho Co., Ltd. model number: C3) was used for the evaluation of the pyrogenicity test.
  • the latent heat storage gypsum plate 10 to which the paraffin paper 41 was fixed was sufficiently heated to the melting point of the contained latent heat storage material or higher. Specifically, the weight was constant in a dryer at 40°C. That is, it was placed in a dryer until there was no change in weight. Then, it was confirmed whether or not the latent heat storage material adhered to the paraffin paper 41 .
  • a gypsum board having a thickness of 12.5 mm, a width of 300 mm, and a length of 400 mm was prepared as the gypsum board 11, and the latent heat storage layer 12 was formed on the entire surface of the first main surface 11A to obtain the latent heat storage gypsum board 10.
  • the latent heat storage layer was formed by applying a latent heat storage material-containing coating material formed by kneading a latent heat storage material and a binder by flow coating and drying.
  • the latent heat storage material we used a material in which fatty acid ester, which is a latent heat storage material, was encapsulated in microcapsules made of polyurethane.
  • an alkali metal sodium silicate/lithium silicate aqueous solution that is, an alkali metal silicate-based inorganic binder was used.
  • the latent heat storage material-containing coating material was prepared so that the mixing ratio of the latent heat storage material and the binder was as shown in Table 1 when the latent heat storage layer was formed by drying.
  • a latent heat storage gypsum plate was produced by applying the coating material to the gypsum plate as described above so that the latent heat storage layer had a thickness of 3 mm after drying, followed by drying.
  • the obtained latent heat storage gypsum plate was evaluated for heat storage capacity, exothermicity test, fluidity of coating material, and leakage of latent heat storage material when screwed. Table 1 shows the results.
  • Table 1 also shows the calculation result of the latent heat storage material amount, which is the mass of the latent heat storage material contained per unit area of the first main surface of the gypsum plate 11 in the latent heat storage gypsum plate 10 produced in each experimental example. Shown together.
  • Experimental Examples 1-2 to 1-5 are Examples, and Experimental Examples 1-1 and 1-6 are Comparative Examples.
  • Experimental Examples 1-2 to 1-5 which are examples, are exothermic grade 1 and have a heat storage amount of 260 kJ/m 2 or more, so they are nonflammable. It was confirmed that a latent heat storage gypsum plate having excellent heat storage capacity was obtained.
  • a gypsum board having a thickness of 12.5 mm, a width of 300 mm, and a length of 400 mm was prepared as the gypsum board 11, and the latent heat storage layer 12 was formed on the entire surface of the first main surface 11A to obtain the latent heat storage gypsum board 10.
  • the latent heat storage layer was formed by applying a latent heat storage material-containing coating material formed by kneading a latent heat storage material and a binder by flow coating and drying.
  • the latent heat storage material we used a material in which fatty acid ester, which is a latent heat storage material, was encapsulated in microcapsules made of polyurethane.
  • a vinyl acetate-based binder was used, water was used as a solvent, and a binder containing 55.0% by mass of the active ingredient of the binder was used. That is, an organic binder was used.
  • the latent heat storage material-containing coating material was prepared so that the mixing ratio of the latent heat storage material and the binder was as shown in Table 2 when dried to form the latent heat storage layer.
  • a latent heat storage gypsum plate was produced by applying the coating material to the gypsum plate as described above so that the latent heat storage layer had a thickness of 3 mm after drying, followed by drying.
  • the obtained latent heat storage gypsum plate was evaluated for heat storage capacity, exothermicity test, fluidity of coating material, and leakage of latent heat storage material when screwed. Table 2 shows the results.
  • Table 2 also shows the calculation result of the latent heat storage material amount, which is the mass of the latent heat storage material contained per unit area of the first main surface of the gypsum plate 11 in the latent heat storage gypsum plate 10 produced in each experimental example. Shown together.
  • Experimental Examples 2-2 to 2-5 are Examples, and Experimental Examples 2-1 and 2-6 are Comparative Examples.
  • Experimental Examples 2-2 to 2-5 which are examples, are exothermic grade 1 and have a heat storage amount of 260 kJ/m 2 or more, so they are nonflammable. It was confirmed that a latent heat storage gypsum plate having excellent heat storage capacity was obtained.
  • the thickness X of the gypsum plate 11 and the specific gravity Y of the gypsum plate 11 were measured according to JIS A 6901 (2014).
  • gypsum board 11 As the gypsum board 11, a gypsum board having the thickness and specific gravity shown in Tables 3 to 6 for each experimental example was prepared, and the latent heat storage layer 12 was formed on the entire surface of the first main surface 11A to obtain the latent heat storage gypsum board 10. .
  • the latent heat storage layer was formed by applying a latent heat storage material-containing coating material formed by kneading a latent heat storage material, a binder, and talc by flow coating and drying.
  • the latent heat storage material we used a material in which fatty acid ester, which is a latent heat storage material, was encapsulated in microcapsules made of polyurethane.
  • a vinyl acetate-based binder was used, water was used as a solvent, and a binder containing 55.0% by mass of the active ingredient of the binder was used. That is, an organic binder was used.
  • talc was added to the latent heat storage material-containing coating material so that it was contained at a rate of 2.9 parts by mass when the latent heat storage layer was 100 parts by mass.
  • the concentration of the latent heat storage material-containing coating material used in Experimental Example 3-1 was constant, and the amount of the latent heat storage material contained in the latent heat storage layer after coating was shown in Tables 3 to 6 for each example and comparative example.
  • the thickness of the latent heat storage layer was adjusted so as to obtain the desired value, and the layer was applied to the gypsum plate 11 .
  • the latent heat storage material-containing coating material was prepared so that the latent heat storage layer contained 64.8% by mass of the latent heat storage material, 32.3% by mass of the binder, and 2.9% by mass of talc. Also, the latent heat storage material amount is the mass of the latent heat storage material contained per unit area of the first main surface 11A of the gypsum plate 11 .
  • the obtained latent heat storage gypsum plate was evaluated with respect to the heat storage amount and heat build-up test described above. The results are shown in Tables 3-6.
  • Examples 3-1-1 to 3-1-24 in the exothermic test, no cracks or holes penetrating to the back surface harmful to fire prevention occurred during the heating time, and the maximum heat was generated within the heating time. The speed never exceeded 200 kW/m 2 continuously for more than 10 seconds.
  • the thickness X of the gypsum plate 11 and the specific gravity Y of the gypsum plate 11 were measured according to JIS A 6901 (2014).
  • a gypsum board having the thickness and specific gravity shown in Tables 7 to 10 for each experimental example was prepared as the gypsum board 11, and the latent heat storage layer 12 was formed on the entire surface of the first main surface 11A to obtain the latent heat storage gypsum board 10. .
  • the latent heat storage layer was formed by applying a latent heat storage material-containing coating material formed by kneading a latent heat storage material and a binder by flow coating and drying.
  • the latent heat storage material we used a material in which fatty acid ester, which is a latent heat storage material, was encapsulated in microcapsules made of polyurethane.
  • a vinyl acetate-based binder was used, water was used as a solvent, and a binder containing 55.0% by mass of the active ingredient of the binder was used. That is, an organic binder was used.
  • the concentration of the latent heat storage material-containing coating material used in Experimental Example 3-2 was constant, and the amount of the latent heat storage material contained in the latent heat storage layer after coating was shown in Tables 7 to 10 for each example and comparative example.
  • the thickness of the latent heat storage layer was adjusted so as to obtain the desired value, and the layer was applied to the gypsum plate 11 .
  • the latent heat storage material-containing coating material was prepared so that the latent heat storage layer contained 64.8% by mass of the latent heat storage material and 35.2% by mass of the binder. Also, the latent heat storage material amount is the mass of the latent heat storage material contained per unit area of the first main surface 11A of the gypsum plate 11 .
  • the obtained latent heat storage gypsum plate was evaluated with respect to the heat storage amount and heat build-up test described above. The results are shown in Tables 7-10.
  • Examples 3-2-1 to 3-2-24 in the exothermic test, no cracks or holes penetrating to the back surface harmful to fire prevention occurred during the heating time, and the maximum heat was generated within the heating time. The speed never exceeded 200 kW/m 2 continuously for more than 10 seconds.
  • the type of gypsum plate in order to examine the relationship between the thickness X (mm) of the gypsum plate 11, the specific gravity Y (-) of the gypsum plate 11, and the heat storage amount Z (kJ/m 2 ), the type of gypsum plate Alternatively, the latent heat storage gypsum slabs were produced by changing the amount of the latent heat storage material and evaluated.
  • the thickness X of the gypsum plate 11 and the specific gravity Y of the gypsum plate 11 were measured according to JIS A 6901 (2014).
  • a gypsum board having the thickness and specific gravity shown in Tables 11 to 14 for each experimental example was prepared as the gypsum board 11, and the latent heat storage layer 12 was formed on the entire surface of the first main surface 11A to obtain the latent heat storage gypsum board 10. .
  • the latent heat storage layer was formed by applying a latent heat storage material-containing coating material formed by kneading a latent heat storage material and a binder with a flow coater and drying it.
  • the latent heat storage material we used a material in which paraffin, which is a latent heat storage material, is encapsulated in microcapsules made of melamine resin.
  • a vinyl acetate-based binder was used, water was used as a solvent, and a binder containing 55.0% by mass of the active ingredient of the binder was used. That is, an organic binder was used.
  • the coating material containing the latent heat storage material used in Experimental Example 3-3 had a constant concentration, and the amount of the latent heat storage material contained in the latent heat storage layer after coating was shown in Tables 11 to 14 for each example and comparative example.
  • the thickness of the latent heat storage layer was adjusted so as to obtain the desired value, and the layer was applied to the gypsum plate 11 .
  • the latent heat storage material-containing coating material was prepared so that the latent heat storage layer contained 64.8% by mass of the latent heat storage material and 35.2% by mass of the binder. Also, the latent heat storage material amount is the mass of the latent heat storage material contained per unit area of the first main surface 11A of the gypsum plate 11 .
  • the obtained latent heat storage gypsum plate was evaluated with respect to the heat storage amount and heat build-up test described above. The results are shown in Tables 11-14.
  • Examples 3-3-1 to 3-3-24 in the exothermic test, no cracks or holes penetrating to the back surface harmful to fire prevention occurred during the heating time, and the maximum heat was generated within the heating time. The speed never exceeded 200 kW/m 2 continuously for more than 10 seconds.
  • the type of gypsum plate in order to examine the relationship between the thickness X (mm) of the gypsum plate 11, the specific gravity Y (-) of the gypsum plate 11, and the heat storage amount Z (kJ/m 2 ), the type of gypsum plate Alternatively, the latent heat storage gypsum slabs were produced by changing the amount of the latent heat storage material and evaluated.
  • the thickness X of the gypsum plate 11 and the specific gravity Y of the gypsum plate 11 were measured according to JIS A 6901 (2014).
  • gypsum board 11 As the gypsum board 11, a gypsum board having the thickness and specific gravity shown in Tables 15 to 18 for each experimental example was prepared, and the latent heat storage layer 12 was formed on the entire surface of the first main surface 11A to obtain the latent heat storage gypsum board 10. .
  • the latent heat storage layer was formed by applying a latent heat storage material-containing coating material formed by kneading a latent heat storage material and a binder by flow coating and drying.
  • the latent heat storage material we used a material in which fatty acid ester, which is a latent heat storage material, was encapsulated in microcapsules made of polyurethane.
  • an alkali metal sodium silicate/lithium silicate aqueous solution that is, an alkali metal silicate-based inorganic binder was used.
  • the coating material containing the latent heat storage material used in Experimental Examples 3-4 had a constant concentration, and the amount of the latent heat storage material contained in the latent heat storage layer after coating was shown in Tables 15 to 18 for each example and comparative example.
  • the thickness of the latent heat storage layer was adjusted so as to obtain the desired value, and the layer was applied to the gypsum plate 11 .
  • the latent heat storage material-containing coating material was prepared so that the latent heat storage layer contained 54.9% by mass of the latent heat storage material and 45.1% by mass of the binder. Also, the latent heat storage material amount is the mass of the latent heat storage material contained per unit area of the first main surface 11A of the gypsum plate 11 .
  • the obtained latent heat storage gypsum plate was evaluated with respect to the heat storage amount and heat build-up test described above. The results are shown in Tables 15-18.
  • Examples 3-4-1 to 3-4-23 in the exothermic test, cracks and holes penetrating to the back surface harmful to fire prevention did not occur during the heating time, and the maximum heat generation was performed within the heating time. The speed never exceeded 200 kW/m 2 continuously for more than 10 seconds.
  • FIG. 5 shows the result of Experimental Example 3-2 and the plane 40 obtained by the above formula.
  • Examples 3-2-1 to 3-2-24 are located below the plane 40, so the description is omitted. As shown in FIG. 5, Examples 3-2-1 to 3-2-24 and Comparative Examples 3-2-1 to 3-2-27 are separated by a plane 40, and the above equation is It could be confirmed that the level 1 of exothermic property was satisfied when it was satisfied.

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US12492330B2 (en) 2025-12-09
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