JP2015052210A - Thermal insulation panel and manufacturing method thereof - Google Patents

Thermal insulation panel and manufacturing method thereof Download PDF

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JP2015052210A
JP2015052210A JP2013184295A JP2013184295A JP2015052210A JP 2015052210 A JP2015052210 A JP 2015052210A JP 2013184295 A JP2013184295 A JP 2013184295A JP 2013184295 A JP2013184295 A JP 2013184295A JP 2015052210 A JP2015052210 A JP 2015052210A
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heat insulating
binder
insulation panel
heat insulation
base material
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Inventor
貴也 丹生
Takaya Niu
貴也 丹生
田村　俊樹
Toshiki Tamura
俊樹 田村
遠田　正和
Masakazu Toda
正和 遠田
善光 生駒
Yoshimitsu Ikoma
善光 生駒
一真 釘宮
Kazuma Kugimiya
一真 釘宮
亮介 澤
Ryosuke Sawa
亮介 澤
健太 細井
Kenta Hosoi
健太 細井
康博 日高
Yasuhiro Hidaka
康博 日高
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Panasonic Intellectual Property Management Co Ltd
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Panasonic Intellectual Property Management Co Ltd
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Priority to JP2013184295A priority Critical patent/JP2015052210A/en
Priority to PCT/JP2014/004476 priority patent/WO2015033547A1/en
Publication of JP2015052210A publication Critical patent/JP2015052210A/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
    • E04F15/181—Insulating layers integrally formed with the flooring or the flooring elements
    • 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
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/296—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and non-metallic or unspecified sheet-material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
    • E04F15/107—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials composed of several layers, e.g. sandwich 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
    • E04B1/74—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
    • E04B1/78—Heat insulating elements
    • E04B1/80—Heat insulating elements slab-shaped
    • 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
    • E04B2001/742—Use of special materials; Materials having special structures or shape
    • 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
    • E04C2002/001—Mechanical features of panels
    • E04C2002/004—Panels with profiled edges, e.g. stepped, serrated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/24—Structural elements or technologies for improving thermal insulation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
    • Y02B80/10—Insulation, e.g. vacuum or aerogel insulation

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a thermal insulation panel capable of preventing strength degradation caused from a thermal insulation material.SOLUTION: A thermal insulation panel 1 includes: a first backing 2; a second backing 3 facing to the first backing 2 at a distance; and a thermal insulation material 4 disposed between the first backing 2 and the second backing 3. The thermal insulation material 4 contains aerogel particles and a binder for binding neighboring particles contained in the aerogel particles.

Description

本発明は、断熱パネル及びその製造方法に関する。   The present invention relates to a heat insulating panel and a method for manufacturing the same.

断熱材を備える断熱パネルは、例えば床暖房用の床パネルとして広く用いられている。このような断熱パネルは、断熱材として、真空断熱材、発泡樹脂、グラスウール等を備える。このような断熱材は、断熱パネル中で大きな割合を占めるにもかかわらず、その強度は低いため、断熱材は、断熱パネルの強度低下の要因となる。このため、断熱パネル内には、断熱材と共に、補強のための桟等を設けることが行われている（特許文献１参照）。   A heat insulating panel including a heat insulating material is widely used as a floor panel for floor heating, for example. Such a heat insulating panel includes a vacuum heat insulating material, a foamed resin, glass wool and the like as a heat insulating material. Although such a heat insulating material occupies a large proportion in the heat insulating panel, its strength is low, and therefore the heat insulating material causes a decrease in the strength of the heat insulating panel. For this reason, providing the crosspiece etc. for reinforcement with the heat insulating material in the heat insulation panel is performed (refer patent document 1).

特開２０１２−２４６６０４号公報JP 2012-246604 A

しかし、断熱パネル内に桟等の補強材を設けると、この補強材の占る位置には断熱材が配置されないため、断熱パネルの断熱性能の低下を招いてしまう。特に断熱パネルが、高い強度が要求される床パネルとして構成される場合には、断熱パネル内の補強材の割合が高くなるため、断熱性能の低下が著しくなってしまう。また、断熱性能を確保するために補強材を減らし、或いは取り除くと、断熱パネルの強度が低下してしまう。   However, when a reinforcing material such as a crosspiece is provided in the heat insulating panel, the heat insulating material is not disposed at a position occupied by the reinforcing material, which causes a decrease in the heat insulating performance of the heat insulating panel. In particular, when the heat insulating panel is configured as a floor panel that requires high strength, the ratio of the reinforcing material in the heat insulating panel is increased, so that the heat insulating performance is significantly deteriorated. Moreover, if the reinforcing material is reduced or removed in order to ensure the heat insulating performance, the strength of the heat insulating panel is lowered.

本発明は上記事由に鑑みてなされたものであり、断熱材に起因する強度低下が抑制された断熱パネルを提供することを目的とする。   This invention is made | formed in view of the said reason, and it aims at providing the heat insulation panel by which the strength fall resulting from a heat insulating material was suppressed.

第一の態様に係る断熱パネルは、第一の基材と、前記第一の基材と間隔をあけて対向する第二の基材と、前記第一の基材と前記第二の基材との間に介在する断熱材とを備え、
前記断熱材が、エアロゲル粒子と、前記エアロゲル粒子に含まれる隣合う粒子同士を接着しているバインダとを含有する。 The heat insulation panel which concerns on a 1st aspect is a 1st base material, a 2nd base material which opposes the said 1st base material at intervals, a said 1st base material, and a said 2nd base material And a heat insulating material interposed between
The said heat insulating material contains the airgel particle and the binder which adhere | attached the adjacent particle | grains contained in the said airgel particle.

第二の態様に係る断熱パネルでは、第一の態様において、前記バインダが、熱可塑性樹脂を含有する。   In the heat insulation panel which concerns on a 2nd aspect, the said binder contains a thermoplastic resin in a 1st aspect.

第三の態様に係る断熱パネルでは、第一の態様において、前記バインダが、熱硬化性樹脂を含有する。   In the heat insulation panel which concerns on a 3rd aspect, the said binder contains a thermosetting resin in a 1st aspect.

第四の態様に係る断熱パネルは、第一乃至第三のいずれか一の態様において、床パネルとして構成されている。   The heat insulation panel according to the fourth aspect is configured as a floor panel in any one of the first to third aspects.

第五の態様に係る断熱パネルの製造方法は、
第一の基材上に、エアロゲル粒子と、このエアロゲル粒子に付着しているバインダとを含有する混合材料を配置する工程、
第二の基材を前記第一の基材と対向させて配置すると共に前記第二の基材を前記混合材料と重ねる工程、及び
前記混合材料を加熱して前記エアロゲル粒子に含まれる隣合う粒子同士を前記バインダで接着することで、断熱材を形成する工程を含む。 The manufacturing method of the heat insulation panel which concerns on a 5th aspect is the following.
A step of disposing a mixed material containing airgel particles and a binder attached to the airgel particles on the first substrate;
A step of placing a second base material facing the first base material and superimposing the second base material on the mixed material; and adjoining particles contained in the airgel particles by heating the mixed material The process includes forming a heat insulating material by bonding them together with the binder.

本発明によれば、エアロゲル粒子とバインダとを含有する断熱材が、高い断熱性能を有すると共に高い強度をも有するため、断熱パネルの断熱性能が確保されると共に断熱材に起因する断熱パネルの強度低下が抑制される。   According to the present invention, since the heat insulating material containing the airgel particles and the binder has high heat insulating performance and high strength, the heat insulating performance of the heat insulating panel is ensured and the strength of the heat insulating panel due to the heat insulating material. Reduction is suppressed.

（ａ）乃至（ｄ）は、本発明の一実施形態に係る断熱パネルの製造工程を示す断面図である。(A) thru | or (d) are sectional drawings which show the manufacturing process of the heat insulation panel which concerns on one Embodiment of this invention. 本実施形態に係る断熱パネルを示す平面図である。It is a top view which shows the heat insulation panel which concerns on this embodiment. 本実施形態に係る断熱パネルの変形例を示す断面図である。It is sectional drawing which shows the modification of the heat insulation panel which concerns on this embodiment.

本実施形態に係る断熱パネル１は、第一の基材２と、第一の基材２と間隔をあけて対向する第二の基材３と、第一の基材２と第二の基材３との間に介在する断熱材４とを備える。断熱材４は、エアロゲル粒子と、エアロゲル粒子に含まれる隣合う粒子同士を接着しているバインダとを含有する。   The heat insulation panel 1 which concerns on this embodiment is the 1st base material 2, the 2nd base material 3 which opposes the 1st base material 2 at intervals, the 1st base material 2, and the 2nd base. The heat insulating material 4 interposed between the materials 3 is provided. The heat insulating material 4 contains airgel particles and a binder that bonds adjacent particles contained in the airgel particles.

本実施形態では、断熱材４がエアロゲル粒子とバインダとを含有することで、断熱材４が高い断熱性能を有すると共に高い強度をも有する。このため、断熱パネル１の断熱性能が確保されると共に断熱材４に起因する断熱パネル１の強度低下が抑制される。   In this embodiment, since the heat insulating material 4 contains airgel particles and a binder, the heat insulating material 4 has high strength as well as high heat insulating performance. For this reason, while the heat insulation performance of the heat insulation panel 1 is ensured, the strength reduction of the heat insulation panel 1 resulting from the heat insulating material 4 is suppressed.

本実施形態に係る断熱パネル１の構造について、図１（ｄ）及び図２を参照して、更に詳しく説明する。   The structure of the heat insulation panel 1 according to the present embodiment will be described in more detail with reference to FIG.

上述の通り、断熱パネル１は、第一の基材２と、第一の基材２と間隔をあけて対向する第二の基材３と、第一の基材２と第二の基材３との間に介在する断熱材４とを備える。更に本実施形態では、断熱パネル１が、枠材６と補強材７とを備える。   As above-mentioned, the heat insulation panel 1 is the 1st base material 2, the 2nd base material 3 which opposes the 1st base material 2 at intervals, the 1st base material 2, and the 2nd base material. And a heat insulating material 4 interposed therebetween. Furthermore, in this embodiment, the heat insulating panel 1 includes a frame member 6 and a reinforcing member 7.

第一の基材２と第二の基材３の各々は、平板状且つ平面視矩形状の部材である。第一の基材２と第二の基材３の各々は、制限的ではないが、例えば、ＭＤＦ（中密度繊維板）、ＮＮＢ（National New Board）、合板、厚単板等の木質系材料から形成される。また、第一の基材２と第二の基材３の各々が、硬質樹脂材料から形成されてもよい。   Each of the first base material 2 and the second base material 3 is a flat plate-like and rectangular member in plan view. Each of the first base material 2 and the second base material 3 is not limited, but for example, wood based materials such as MDF (medium density fiberboard), NNB (National New Board), plywood, thick veneer, etc. Formed from. Moreover, each of the 1st base material 2 and the 2nd base material 3 may be formed from a hard resin material.

枠材６は、第一の基材２と第二の基材３との間に介在している。本実施形態では、枠材６は、第一の枠材６１、第二の枠材６２、第三の枠材６３及び第四の枠材６４を含む。これらの枠材６１〜６４の各々は、長尺な部材である。第一の枠材６１、第二の枠材６２、第三の枠材６３及び第四の枠材６４は、矩形の枠型に組み合わされている。第一の枠材６１と第二の枠材６２とが対向し、第三の枠材６３と第四の枠材６４とが対向している。枠材６は、例えばＭＤＦ（中密度繊維板）、ＮＮＢ（National New Board）、合板、厚単板等の木質系材料から形成される。また、枠材６が、硬質樹脂材料から形成されてもよい。   The frame material 6 is interposed between the first base material 2 and the second base material 3. In the present embodiment, the frame member 6 includes a first frame member 61, a second frame member 62, a third frame member 63, and a fourth frame member 64. Each of these frame members 61 to 64 is a long member. The first frame member 61, the second frame member 62, the third frame member 63, and the fourth frame member 64 are combined in a rectangular frame shape. The first frame member 61 and the second frame member 62 are opposed to each other, and the third frame member 63 and the fourth frame member 64 are opposed to each other. The frame member 6 is made of, for example, a wood-based material such as MDF (medium density fiberboard), NNB (National New Board), plywood or thick veneer. Moreover, the frame material 6 may be formed from a hard resin material.

第一の枠材６１は第一の嵌合部８１を有し、第二の枠材６２は第二の嵌合部８２を有する。第二の嵌合部８２は第一の嵌合部８１と嵌合する形状を有する。また、第三の枠材６３は第三の嵌合部８３を有し、第四の枠材６４は第四の嵌合部８４を有する。第四の嵌合部８４は、第三の嵌合部８３と嵌合する形状を有する。本実施形態では、第一の嵌合部８１及び第三の嵌合部８３の各々は雄実であり、第二の嵌合部８２と第四の嵌合部８４の各々は雌実である。   The first frame member 61 has a first fitting portion 81, and the second frame member 62 has a second fitting portion 82. The second fitting portion 82 has a shape that fits with the first fitting portion 81. The third frame member 63 has a third fitting portion 83, and the fourth frame member 64 has a fourth fitting portion 84. The fourth fitting portion 84 has a shape that fits with the third fitting portion 83. In the present embodiment, each of the first fitting portion 81 and the third fitting portion 83 is male, and each of the second fitting portion 82 and the fourth fitting portion 84 is female. .

補強材７は、長尺な部材である。補強材７は、第一の基材２、第二の基材３及び枠材６で囲まれる空間９に配置されることで、この空間９を分割する。補強材７は、例えばＭＤＦ（中密度繊維板）、ＮＮＢ（National New Board）、合板、厚単板等の木質系材料から形成される。また、補強材７が、硬質樹脂材料から形成されてもよい。   The reinforcing material 7 is a long member. The reinforcing material 7 divides the space 9 by being disposed in the space 9 surrounded by the first base material 2, the second base material 3, and the frame material 6. The reinforcing material 7 is made of, for example, a woody material such as MDF (medium density fiberboard), NNB (National New Board), plywood, and thick veneer. Moreover, the reinforcing material 7 may be formed from a hard resin material.

断熱材４は、第一の基材２、第二の基材３及び枠材６で囲まれる空間９に配置される。本実施形態では、補強材７によって分割された空間９に、断熱材４が配置されている。これにより、断熱材４が、第一の基材２と第二の基材３との間に介在している。   The heat insulating material 4 is disposed in a space 9 surrounded by the first base material 2, the second base material 3, and the frame material 6. In the present embodiment, the heat insulating material 4 is disposed in the space 9 divided by the reinforcing material 7. Thereby, the heat insulating material 4 is interposed between the first base material 2 and the second base material 3.

断熱材４は、エアロゲル粒子と、バインダとを含有する。断熱材４がエアロゲル粒子を含有することで、断熱材４が高い強度を有する。また、バインダが、エアロゲル粒子に含まれる隣合う粒子同士を接着している。このため、断熱材４内でエアロゲル粒子が固定され、これにより、断熱材４の強度が更に向上している。   The heat insulating material 4 contains airgel particles and a binder. The heat insulating material 4 has high intensity | strength because the heat insulating material 4 contains an airgel particle. Moreover, the binder has adhere | attached the adjacent particles contained in an airgel particle. For this reason, the airgel particles are fixed in the heat insulating material 4, thereby further improving the strength of the heat insulating material 4.

尚、エアロゲル粒子とは、粒子状のエアロゲルのことである。エアロゲル（ａｅｒｏｇｅｌ）とは、ゲル中に含まれる溶媒を気体に置換して得られる多孔性の物質（多孔質体）である。エアロゲルは、キセロゲル（ｘｅｒｏｇｅｌ）を含んでもよい。   Airgel particles are particulate airgel. An airgel is a porous substance (porous body) obtained by substituting the solvent contained in the gel with gas. The airgel may comprise xerogel.

本実施形態では、エアロゲル粒子は、例えばシリカエアロゲル粒子、カーボンエアロゲル粒子及びアルミナエアロゲル粒子からなる群から選択される一種以上の材料を含有する。特にエアロゲル粒子が、シリカエアロゲル粒子を含有することが好ましい。   In the present embodiment, the airgel particles contain one or more materials selected from the group consisting of silica airgel particles, carbon airgel particles, and alumina airgel particles, for example. In particular, the airgel particles preferably contain silica airgel particles.

エアロゲル粒子は、例えば超臨界乾燥法、常圧乾燥法などの、一般的な製造方法で製造される。   The airgel particles are produced by a general production method such as a supercritical drying method or an atmospheric pressure drying method.

エアロゲル粒子の形状は、特に限定されず、種々の形状であってよい。例えばエアロゲル粒子が、角張った岩石状などの不定形の形状を有してもよい。また、エアロゲル粒子が、球状、ラグビーボール状、パネル状、フレーク状、繊維状等の形状を有してもよい。   The shape of the airgel particles is not particularly limited, and may be various shapes. For example, the airgel particles may have an irregular shape such as an angular rock. The airgel particles may have a shape such as a spherical shape, a rugby ball shape, a panel shape, a flake shape, or a fiber shape.

エアロゲル粒子の平均粒径は、５００μｍ以上であることが好ましい。この平均粒径は、５００μｍ以上５ｍｍ以下の範囲内であればより好ましく、５００μｍ以上１．５ｍｍ以下の範囲内であれば、更に好ましい。また、エアロゲル粒子の長径が、５０ｎｍ以上１０ｍｍ以下の範囲内であることが好ましく、１００μｍ以上２ｍｍ未満の範囲内であれば更に好ましい。   The average particle size of the airgel particles is preferably 500 μm or more. The average particle size is more preferably in the range of 500 μm to 5 mm, and even more preferably in the range of 500 μm to 1.5 mm. The major axis of the airgel particles is preferably in the range of 50 nm to 10 mm, and more preferably in the range of 100 μm to less than 2 mm.

尚、断熱材４中のエアロゲル粒子の平均粒径は、断熱材４のＸ線ＣＴ測定によって得られるエアロゲル粒子の断面積から算出される真円換算の直径の、算術平均値である。   In addition, the average particle diameter of the airgel particles in the heat insulating material 4 is an arithmetic average value of the diameter in terms of a perfect circle calculated from the cross-sectional area of the airgel particles obtained by the X-ray CT measurement of the heat insulating material 4.

バインダは、断熱材４中で、例えばエアロゲル粒子の表面に点状に形成されている。すなわち、例えばエアロゲル粒子に含まれる隣合う粒子のうち一方の粒子の表面の一部にバインダが付着し、このバインダが他方の粒子の表面の一部にも付着することで、粒子間にバインダが介在し、これにより、粒子同士が接着されている。この場合、断熱材４中におけるバインダを通じた熱伝導が抑制されるため、断熱材４の断熱性能が特に高くなる。   The binder is formed in the heat insulating material 4 in the shape of dots on the surface of airgel particles, for example. That is, for example, a binder adheres to a part of the surface of one of the adjacent particles contained in the airgel particles, and the binder also adheres to a part of the surface of the other particle. By interposing, the particles are bonded to each other. In this case, since heat conduction through the binder in the heat insulating material 4 is suppressed, the heat insulating performance of the heat insulating material 4 is particularly high.

断熱材４中で、バインダが、エアロゲル粒子の表面全体を覆っていてもよい。すなわち、エアロゲル粒子に含まれる隣合う粒子の各々が、バインダによって覆われ、且つ粒子の表面上のバインダ同士が接触することで、粒子同士が接着されていてもよい。   In the heat insulating material 4, the binder may cover the entire surface of the airgel particles. That is, each of the adjacent particles contained in the airgel particles may be covered with the binder, and the particles may be bonded to each other by contacting the binders on the surface of the particles.

また、断熱材４中で、バインダで構成される母相中にエアロゲル粒子が分散することで、エアロゲル粒子に含まれる隣合う粒子同士がバインダで接着されてもよい。   Moreover, the airgel particle disperse | distributes in the parent phase comprised with a binder in the heat insulating material 4, and the adjacent particles contained in an airgel particle may adhere | attach with a binder.

断熱材４中のエアロゲル粒子１００質量部に対するバインダの量は、特に制限されないが、５〜１００質量部の範囲内であることが好ましく、１５〜５０質量部の範囲内であれば更に好ましい。   The amount of the binder with respect to 100 parts by mass of the airgel particles in the heat insulating material 4 is not particularly limited, but is preferably in the range of 5 to 100 parts by mass, and more preferably in the range of 15 to 50 parts by mass.

バインダは、熱硬化性樹脂を含有することができる。この場合、バインダが、熱硬化性樹脂のみを含有してもよいし、熱硬化性樹脂と共に適宜の添加物を含有してもよい。   The binder can contain a thermosetting resin. In this case, the binder may contain only the thermosetting resin, or may contain an appropriate additive together with the thermosetting resin.

バインダに含まれる熱硬化性樹脂の溶融状態での溶解度パラメータ（ＳＰ値）と、エアロゲル粒子の溶解度パラメータとの差は、４以上であることが好ましい。この場合、熱硬化性樹脂がエアロゲル粒子の表面で弾かれて広がりにくくなり、これによりバインダが点状に形成されやすくなる。この溶解度パラメータの差は、エアロゲル粒子の表面の官能基の種類及び割合、熱硬化性樹脂の種類及び構造（官能基の種類や重合度など）等に依存する。溶解度パラメータの差を大きくするためには、例えばエアロゲル粒子が疎水性であり、熱硬化性樹脂が溶融状態で親水性を有することが、好ましい。このＳＰ値の差の上限は特に設定されないが、例えば上限が２０であってもよい。   The difference between the solubility parameter (SP value) in the molten state of the thermosetting resin contained in the binder and the solubility parameter of the airgel particles is preferably 4 or more. In this case, the thermosetting resin is bounced on the surface of the airgel particles and hardly spreads, whereby the binder is easily formed in a dot shape. This difference in solubility parameter depends on the type and ratio of functional groups on the surface of the airgel particles, the type and structure of the thermosetting resin (type of functional groups, degree of polymerization, etc.), and the like. In order to increase the difference in solubility parameter, for example, it is preferable that the airgel particles are hydrophobic and the thermosetting resin is hydrophilic in a molten state. The upper limit of the SP value difference is not particularly set, but the upper limit may be 20, for example.

尚、熱硬化性樹脂の溶融状態でのＳＰ値は、原子団寄与法によって得られる熱硬化性樹脂の分子構造から算出される。一方、エアロゲル粒子のＳＰ値は、エアロゲル粒子の表面を修飾している表面処理剤の分子構造から原子団寄与法によって算出される。   The SP value in the molten state of the thermosetting resin is calculated from the molecular structure of the thermosetting resin obtained by the atomic group contribution method. On the other hand, the SP value of the airgel particles is calculated by the atomic group contribution method from the molecular structure of the surface treatment agent that modifies the surface of the airgel particles.

熱硬化性樹脂は、例えばフェノール樹脂、メラミン樹脂、ユリア樹脂及びエポキシ樹脂からなる群から選択される一種以上の化合物を含有することができる。熱硬化性樹脂を含有するバインダの具体的な一例として、ＤＩＣ株式会社製の品番Ｐ５５１０が挙げられる。   The thermosetting resin can contain, for example, one or more compounds selected from the group consisting of a phenol resin, a melamine resin, a urea resin, and an epoxy resin. As a specific example of a binder containing a thermosetting resin, product number P5510 manufactured by DIC Corporation may be mentioned.

バインダは、熱硬化性樹脂ではなく、熱可塑性樹脂を含有してもよい。この場合、バインダは、熱可塑性樹脂のみを含有してもよいし、熱可塑性樹脂と共に適宜の添加剤を含有してもよい。   The binder may contain a thermoplastic resin instead of a thermosetting resin. In this case, the binder may contain only a thermoplastic resin, or may contain an appropriate additive together with the thermoplastic resin.

熱可塑性樹脂を含有するバインダは、水中に分散可能なエマルジョンタイプであってもよい。このようなバインダを含有するエマルションは、例えばゴム系ラテックス系エマルション、アクリル系エマルション、及び酢酸ビニル系エマルションからなる群から選択される一種以上の材料を含有することができる。熱可塑性樹脂は、ホットメルトタイプであってもよい。ホットメルトタイプの熱可塑性樹脂は、例えばエチレン−アクリレート共重合体、ポリエチレン樹脂、ポリプロピレン樹脂、ポリスチレン樹脂、エチレン−酢酸ビニル共重合体、ポリアミド樹脂及びポリエステル樹脂からなる群から選択される一種以上の化合物を含有することができる。熱可塑性樹脂を含有するバインダの具体的な一例として、東京インキ株式会社製の品番７０５０が挙げられる。バインダが熱可塑性樹脂を含有すると、断熱材４の製造時において熱可塑性樹脂を溶融させずに軟化させれば、バインダがエアロゲル粒子の表面で広がりにくくなり、バインダが点状に形成されやすくなる。   The binder containing the thermoplastic resin may be an emulsion type that can be dispersed in water. The emulsion containing such a binder can contain, for example, one or more materials selected from the group consisting of rubber latex emulsions, acrylic emulsions, and vinyl acetate emulsions. The thermoplastic resin may be a hot melt type. The hot melt type thermoplastic resin is, for example, one or more compounds selected from the group consisting of ethylene-acrylate copolymer, polyethylene resin, polypropylene resin, polystyrene resin, ethylene-vinyl acetate copolymer, polyamide resin, and polyester resin. Can be contained. A specific example of a binder containing a thermoplastic resin is product number 7050 manufactured by Tokyo Ink Co., Ltd. When the binder contains a thermoplastic resin, if the thermoplastic resin is softened without being melted at the time of manufacturing the heat insulating material 4, the binder is difficult to spread on the surface of the airgel particles, and the binder is likely to be formed in a dot shape.

また、本実施形態では、第一の基材２の外面上、すなわち、第一の基材２の断熱材４とは反対側の表面上に、化粧層１１が設けられている。化粧層１１として、突板、適宜の加飾シート等が挙げられる。また、本実施形態では、化粧層１１と第一の基材２との間に、発泡樹脂シート等からなる断熱層１０が介在している。このため、断熱パネル１の表面に人の手足等が触れた場合に、人が冷たさを感じることが抑制される。断熱層１０の厚みは０．１〜１ｍｍの範囲内であることが好ましく、断熱層１０の熱伝導率は０．１Ｗ／ｍＫ以下であることが好ましい。また、第一の基材２の、断熱材４とは反対側の表面上に、塗装が施されていてもよい。尚、図２では、断熱層１０及び化粧層１１の図示を省略している。   In the present embodiment, the decorative layer 11 is provided on the outer surface of the first base material 2, that is, on the surface of the first base material 2 opposite to the heat insulating material 4. Examples of the decorative layer 11 include a veneer and an appropriate decorative sheet. In the present embodiment, a heat insulating layer 10 made of a foamed resin sheet or the like is interposed between the decorative layer 11 and the first substrate 2. For this reason, when a human limb etc. touch the surface of the heat insulation panel 1, it is suppressed that a person feels cold. The thickness of the heat insulation layer 10 is preferably in the range of 0.1 to 1 mm, and the heat conductivity of the heat insulation layer 10 is preferably 0.1 W / mK or less. Moreover, the coating may be given on the surface of the 1st base material 2 on the opposite side to the heat insulating material 4. FIG. In FIG. 2, illustration of the heat insulating layer 10 and the decorative layer 11 is omitted.

本実施形態では、上記のとおり断熱材４がエアロゲル粒子を含有するため、断熱材４が高い断熱性能を有する。また、断熱材４が、エアロゲル粒子中の隣合う粒子間を接着しているバインダを含有するため、断熱材４が種々の厚みに容易に形成されうる。すなわち断熱材４の厚みを大きくすることが容易である。このため、断熱材４の断熱性能がより向上し得る。更に、断熱材４は、エアロゲル粒子及びバインダを含有することで、高い強度を有する。このため、断熱パネル１の断熱性能が確保されると共に断熱材４に起因する断熱パネル１の強度低下が抑制される。   In this embodiment, since the heat insulating material 4 contains airgel particles as described above, the heat insulating material 4 has high heat insulating performance. Moreover, since the heat insulating material 4 contains the binder which has adhere | attached between the adjacent particles in an airgel particle, the heat insulating material 4 can be easily formed in various thickness. That is, it is easy to increase the thickness of the heat insulating material 4. For this reason, the heat insulation performance of the heat insulating material 4 can improve more. Furthermore, the heat insulating material 4 has high intensity | strength by containing an airgel particle and a binder. For this reason, while the heat insulation performance of the heat insulation panel 1 is ensured, the strength reduction of the heat insulation panel 1 resulting from the heat insulating material 4 is suppressed.

また、バインダがエアロゲル粒子を固定しているため、断熱材４からエアロゲル粒子が脱落しにくく、また、断熱材４が切断されたり断熱材４に穿孔が形成されたりしても、エアロゲル粒子が脱落しにくくなる。このため、断熱材４の取り扱い性及び加工性が高い。また、断熱パネル１の施工時に断熱パネル１を切断したり断熱パネル１に穿孔を形成したりしても、断熱パネル１からエアロゲル粒子が脱落しにくい。このため、断熱パネル１の施工性が高い。   In addition, since the airgel particles are fixed by the binder, the airgel particles are difficult to drop off from the heat insulating material 4, and even if the heat insulating material 4 is cut or perforated in the heat insulating material 4, the airgel particles drop off. It becomes difficult to do. For this reason, the handleability and workability of the heat insulating material 4 are high. Moreover, even if the heat insulation panel 1 is cut | disconnected at the time of construction of the heat insulation panel 1 or a perforation is formed in the heat insulation panel 1, an airgel particle does not fall easily from the heat insulation panel 1. FIG. For this reason, the workability of the heat insulation panel 1 is high.

また、本実施形態では、第一の枠材６１が第一の嵌合部８１を有し、第二の枠材６２が第二の嵌合部８２を有するため、断熱パネル１が設置される際、隣合う二つの断熱パネル１のうち、一方の断熱パネル１の第一の嵌合部８１と他方の断熱パネル１の第二の嵌合部８２とが嵌合することができる。また、第三の枠材６３が第三の嵌合部８３を有し、第四の枠材６４が第四の嵌合部８４を有するため、断熱パネル１が設置される際、隣合う二つの断熱パネル１のうち、一方の断熱パネル１の第三の嵌合部８３と他方の断熱パネル１の第四の嵌合部８４とが嵌合することもできる。このため、設置された断熱パネル１が、高い耐荷重性能を有する。   Moreover, in this embodiment, since the 1st frame material 61 has the 1st fitting part 81 and the 2nd frame material 62 has the 2nd fitting part 82, the heat insulation panel 1 is installed. At this time, of the two adjacent heat insulating panels 1, the first fitting portion 81 of one heat insulating panel 1 and the second fitting portion 82 of the other heat insulating panel 1 can be fitted. In addition, since the third frame member 63 has the third fitting portion 83 and the fourth frame member 64 has the fourth fitting portion 84, when the heat insulating panel 1 is installed, two adjacent frames are provided. Of the two heat insulating panels 1, the third fitting portion 83 of one heat insulating panel 1 and the fourth fitting portion 84 of the other heat insulating panel 1 can be fitted. For this reason, the installed heat insulation panel 1 has high load-bearing performance.

また、本実施形態では、断熱パネル１が、強度の高い断熱材４に加えて、補強材７も備えるため、断熱パネル１の強度が非常に高い。   Moreover, in this embodiment, since the heat insulation panel 1 is provided with the reinforcement material 7 in addition to the heat insulation material 4 with high intensity | strength, the intensity | strength of the heat insulation panel 1 is very high.

このように本実施形態に係る断熱パネル１は、高い強度を有するため、床パネルとして構成されることが好ましい。この場合、床パネルの断熱性能が確保されると共に断熱材４に起因する床パネルの強度低下が抑制される。勿論、断熱パネル１が、壁パネル、天井パネル等として構成されてもよい。   Thus, since the heat insulation panel 1 which concerns on this embodiment has high intensity | strength, it is preferable to be comprised as a floor panel. In this case, the heat insulation performance of the floor panel is ensured, and the strength reduction of the floor panel due to the heat insulating material 4 is suppressed. Of course, the heat insulation panel 1 may be comprised as a wall panel, a ceiling panel, etc.

尚、断熱パネル１は補強材７を備えなくてもよい。この場合でも、断熱パネル１の強度が高いため、断熱パネル１の高い強度が確保される。更に、補強材７を通じた熱伝導が生じないため、断熱パネル１の断熱性能が更に向上する。   The heat insulation panel 1 may not include the reinforcing material 7. Even in this case, since the strength of the heat insulation panel 1 is high, the high strength of the heat insulation panel 1 is ensured. Furthermore, since heat conduction through the reinforcing material 7 does not occur, the heat insulating performance of the heat insulating panel 1 is further improved.

また、断熱パネル１が本実施形態のように補強材７を備える場合でも、断熱材４の強度が高いため、補強に要する補強材７の量を削減することが可能である。そのため、断熱パネル１における補強材７を通じた熱伝導を低減することで、断熱パネル１の高い断熱性能を維持することができる。   Further, even when the heat insulating panel 1 includes the reinforcing material 7 as in the present embodiment, the strength of the heat insulating material 4 is high, so that the amount of the reinforcing material 7 required for reinforcement can be reduced. Therefore, the high heat insulation performance of the heat insulation panel 1 can be maintained by reducing the heat conduction through the reinforcing material 7 in the heat insulation panel 1.

また、各嵌合部８１〜８４の形状は、本実施形態に制限されない。例えば各嵌合部８１〜８４が、合決により嵌合する形状を有してもよい。また、枠材６は、嵌合部８１〜８４を有さなくてもよいし、第一の嵌合部８１及び第二の嵌合部８２のみを有してもよい。   Moreover, the shape of each fitting part 81-84 is not restrict | limited to this embodiment. For example, each fitting part 81-84 may have the shape fitted by a decision. Further, the frame member 6 may not have the fitting portions 81 to 84, or may have only the first fitting portion 81 and the second fitting portion 82.

本実施形態では、第一の基材２、枠材６及び補強材７は、別部材であるが、図３に示す変形例のように、第一の基材２、枠材６及び補強材７の各々が、一つの部材の一部であってもよい。すなわち、断熱パネル１が、第一の基材２、枠材６及び補強材７が一体となった部材を備えていてもよい。   In the present embodiment, the first base material 2, the frame material 6 and the reinforcing material 7 are separate members. However, as in the modification shown in FIG. 3, the first base material 2, the frame material 6 and the reinforcing material are used. Each of 7 may be a part of one member. That is, the heat insulating panel 1 may include a member in which the first base material 2, the frame material 6, and the reinforcing material 7 are integrated.

本実施形態に係る断熱パネル１は、例えば次の方法で製造される（図１（ａ）〜（ｄ）参照）。   The heat insulation panel 1 which concerns on this embodiment is manufactured by the following method, for example (refer Fig.1 (a)-(d)).

本方法は、第一の基材２上に、エアロゲル粒子とバインダとを含有する混合材料５を配置する工程；第二の基材３を第一の基材２と対向させて配置すると共に第二の基材３を混合材料５と重ねる工程；及び混合材料５を加熱してエアロゲル粒子に含まれる隣合う粒子同士をバインダで接着することで、断熱材４を形成する工程を、含む。   In this method, a mixed material 5 containing airgel particles and a binder is disposed on the first substrate 2; the second substrate 3 is disposed opposite to the first substrate 2 and the first material 2 is disposed. A step of superposing the second base material 3 on the mixed material 5; and a step of forming the heat insulating material 4 by heating the mixed material 5 and adhering adjacent particles contained in the airgel particles with a binder.

本方法では、まず第一の基材２を用意する。この第一の基材２上に、図１（ａ）に示すように、枠材６及び補強材７を固定する。枠材６及び補強材７は、例えば適宜の接着剤、両面テープ等で固定される。また、枠材６及び補強材７は、釘等の固定具で固定されてもよい。   In this method, first, the first substrate 2 is prepared. A frame member 6 and a reinforcing member 7 are fixed on the first base member 2 as shown in FIG. The frame member 6 and the reinforcing member 7 are fixed with, for example, an appropriate adhesive, double-sided tape, or the like. Further, the frame member 6 and the reinforcing member 7 may be fixed with a fixing tool such as a nail.

尚、断熱パネル１が、第一の基材２、枠材６及び補強材７が一体となった部材を備える場合には、この枠材６及び補強材７を固定する工程は不要である。このような部材は、例えば部材に切削加工により凹所を形成する工程を含む方法で、作製される。   In addition, when the heat insulation panel 1 is provided with the member by which the 1st base material 2, the frame material 6, and the reinforcement material 7 were united, the process of fixing this frame material 6 and the reinforcement material 7 is unnecessary. Such a member is manufactured by a method including a step of forming a recess in the member by cutting, for example.

エアロゲル粒子とバインダとを含有する混合材料５を調製する。混合材料５には、更に適宜の添加剤を配合してもよい。バインダは、粉末状であることが好ましいが、液状であってもよい。また、混合材料５が水を含有し、この水にバインダが溶解又は分散していてもよい。   A mixed material 5 containing airgel particles and a binder is prepared. The mixed material 5 may further contain appropriate additives. The binder is preferably in the form of powder, but may be liquid. The mixed material 5 may contain water, and the binder may be dissolved or dispersed in this water.

混合材料中では、エアロゲル粒子にバインダが付着していることが好ましい。特に、エアロゲル粒子に粉末状のバインダが付着していることが好ましい。この場合、バインダは常温で粉末状であることが好ましい。これにより、断熱材４中で、バインダがエアロゲル粒子の表面に点状に形成されやすくなる。混合材料中でエアロゲル粒子にバインダを付着させる方法としては、例えば、混合材料を粉体混合機で撹拌する方法が採用される。この場合、バインダは、バインダのみで凝集しにくいと共にエアロゲル粒子に付着しやすいように、適度の粘着性を有することが好ましい。尚、バインダの粘着性を高めるために、混合材料中に水などの液体を少量加えると共に乾燥しながら、混合材料を混合してもよい。   In the mixed material, it is preferable that a binder adheres to the airgel particles. In particular, it is preferable that a powdery binder adheres to the airgel particles. In this case, the binder is preferably in a powder form at normal temperature. Thereby, in the heat insulating material 4, a binder becomes easy to be formed in the shape of a dot on the surface of an airgel particle. As a method of attaching the binder to the airgel particles in the mixed material, for example, a method of stirring the mixed material with a powder mixer is employed. In this case, it is preferable that the binder has appropriate tackiness so that it is difficult to aggregate only with the binder and easily adheres to the airgel particles. In order to increase the adhesiveness of the binder, the mixed material may be mixed while adding a small amount of liquid such as water to the mixed material and drying.

混合材料中の粉末状のバインダの平均粒径は、混合材料中のエアロゲル粒子の平均粒径よりも小さいことが好ましい。この場合、エアロゲル粒子にバインダを付着させやすくなる。特に、粉末のバインダの平均粒径の、エアロゲル粒子の平均粒径に対する比の値が、１／２００〜１／１０の範囲内であることが好ましい。尚、混合材料中の粉末状のバインダ及びエアロゲル粒子の各々の平均粒径は、レーザ回折・散乱法で測定される。   The average particle diameter of the powdery binder in the mixed material is preferably smaller than the average particle diameter of the airgel particles in the mixed material. In this case, it becomes easy to adhere the binder to the airgel particles. In particular, the ratio of the average particle size of the powder binder to the average particle size of the airgel particles is preferably in the range of 1/200 to 1/10. The average particle size of each of the powdery binder and the airgel particles in the mixed material is measured by a laser diffraction / scattering method.

このエアロゲル粒子とバインダとを含有する混合材料５を、図１（ｂ）に示すように、第一の基材２上の、枠材６で囲まれた領域に配置する。第一の基材２上に配置されている混合材料５の高さは、枠材６と同じ或いはそれよりもやや高いことが好ましい。混合材料５を配置するにあたっては、例えば第一の基材２をコンベアで搬送しながら、この第一の基材２上に混合材料５を、定量供給装置から供給することができる。   As shown in FIG. 1B, the mixed material 5 containing the airgel particles and the binder is disposed in a region surrounded by the frame material 6 on the first base material 2. The height of the mixed material 5 disposed on the first substrate 2 is preferably the same as or slightly higher than that of the frame member 6. In arranging the mixed material 5, for example, the mixed material 5 can be supplied onto the first base material 2 from the quantitative supply device while the first base material 2 is conveyed by a conveyor.

次に、図１（ｃ）に示すように、第二の基材３を、第一の基材２における混合材料５側の面と対向して配置し、この第二の基材３を、混合材料５、枠材６及び補強材７に重ねる。枠材６及び補強材７と第二の基材３との間には、例えば適宜の接着剤、両面テープ等を介在させることで、枠材６及び補強材７と第二の基材３とを接着することが好ましい。   Next, as shown in FIG.1 (c), the 2nd base material 3 is arrange | positioned facing the surface by the side of the mixed material 5 in the 1st base material 2, and this 2nd base material 3 is arranged. The mixed material 5, the frame material 6 and the reinforcing material 7 are stacked. Between the frame material 6 and the reinforcing material 7 and the second base material 3, for example, an appropriate adhesive, a double-sided tape or the like is interposed, so that the frame material 6 and the reinforcing material 7 and the second base material 3 Is preferably adhered.

この状態で、混合材料５を加熱する。そうすると、バインダが熱可塑性樹脂を含有する場合には、バインダが軟化又は溶融する。続いて、混合材料５が冷却されると、バインダが固化することで、エアロゲル粒子に含まれる隣合う粒子同士が、バインダで接着される。また、バインダが熱硬化性樹脂を含有する場合には、バインダが熱硬化することで、エアロゲル粒子に含まれる隣合う粒子同士が、バインダで接着される。これにより、エアロゲル粒子とバインダとを含有する断熱材４が形成される。   In this state, the mixed material 5 is heated. Then, when the binder contains a thermoplastic resin, the binder is softened or melted. Subsequently, when the mixed material 5 is cooled, the binder is solidified, and adjacent particles contained in the airgel particles are bonded together with the binder. Moreover, when a binder contains a thermosetting resin, the adjacent particle | grains contained in an airgel particle are adhere | attached with a binder because a binder thermosets. Thereby, the heat insulating material 4 containing an airgel particle and a binder is formed.

混合材料５の加熱条件は、バインダの組成等に応じて適宜設定される。加熱温度は、例えば８０〜２００℃の範囲内であってよく、好ましくは１００〜１９０℃の範囲内であってよい。加熱時間は、例えば１〜６０分の範囲内であってよく、好ましくは、５〜３０分の範囲内であってよい。特にバインダが熱硬化性樹脂を含有する場合、加熱温度は１７５〜１８５℃の範囲内、加熱時間は３０〜６０分の範囲内であることが、好ましい。また、バインダが熱可塑性樹脂を含有する場合、加熱温度は８５〜９５℃の範囲内、加熱時間は３０〜６０分の範囲内であることが、好ましい。   The heating conditions of the mixed material 5 are appropriately set according to the binder composition and the like. The heating temperature may be, for example, in the range of 80 to 200 ° C, and preferably in the range of 100 to 190 ° C. The heating time may be in the range of 1 to 60 minutes, for example, and preferably in the range of 5 to 30 minutes. In particular, when the binder contains a thermosetting resin, the heating temperature is preferably in the range of 175 to 185 ° C., and the heating time is preferably in the range of 30 to 60 minutes. Moreover, when a binder contains a thermoplastic resin, it is preferable that heating temperature is in the range of 85-95 degreeC, and heating time is in the range of 30-60 minutes.

混合材料５を加熱する際は、加熱プレスにより第一の基材２及び第二の基材３を混合材料５へ向けてプレスしながら加熱することが好ましい。この場合、断熱材４中のエアロゲル粒子の充填密度、すなわち体積当たりの充填量が高くなることで、断熱材４の断熱性能が向上する。加熱プレス時のプレス圧は、例えば０．１〜１０ＭＰａの範囲内であってよく、好ましくは０．５〜５ＭＰａの範囲内であってよい。   When heating the mixed material 5, it is preferable to heat the mixed material 5 while pressing the first base material 2 and the second base material 3 toward the mixed material 5 by a heating press. In this case, the heat insulation performance of the heat insulating material 4 is improved by increasing the packing density of the airgel particles in the heat insulating material 4, that is, the filling amount per volume. The press pressure at the time of hot pressing may be, for example, in the range of 0.1 to 10 MPa, and preferably in the range of 0.5 to 5 MPa.

また、このように加熱プレスにより断熱材４を形成することで、第一の基材２及び第二の基材３の各々と、断熱材４とを、断熱材４中のバインダで接着することが好ましい。この場合、断熱パネル１の強度が更に高くなる。   Moreover, bonding each of the first base material 2 and the second base material 3 to the heat insulating material 4 with a binder in the heat insulating material 4 by forming the heat insulating material 4 by the heating press in this way. Is preferred. In this case, the strength of the heat insulating panel 1 is further increased.

続いて、必要に応じて、第一の基材２の外面（断熱材４とは反対側の表面）上に、断熱層１０及び化粧層１１を順次積層する。これにより、図１（ｄ）に示すように、断熱パネル１が得られる。   Subsequently, as necessary, the heat insulating layer 10 and the decorative layer 11 are sequentially laminated on the outer surface of the first base material 2 (the surface opposite to the heat insulating material 4). Thereby, as shown in FIG.1 (d), the heat insulation panel 1 is obtained.

１ 断熱パネル
２ 第一の基材
３ 第二の基材
４ 断熱材 DESCRIPTION OF SYMBOLS 1 Heat insulation panel 2 1st base material 3 2nd base material 4 Heat insulation material

Claims (5)

第一の基材と、前記第一の基材と間隔をあけて対向する第二の基材と、前記第一の基材と前記第二の基材との間に介在する断熱材とを備え、
前記断熱材が、エアロゲル粒子と、前記エアロゲル粒子に含まれる隣合う粒子同士を接着しているバインダとを含有する断熱パネル。 A first substrate, a second substrate facing the first substrate with a gap, and a heat insulating material interposed between the first substrate and the second substrate. Prepared,
The heat insulation panel in which the said heat insulating material contains the airgel particle and the binder which adhere | attached the adjacent particle | grains contained in the said airgel particle. 前記バインダが、熱可塑性樹脂を含有する請求項１に記載の断熱パネル。 The heat insulation panel according to claim 1, wherein the binder contains a thermoplastic resin. 前記バインダが、熱硬化性樹脂を含有する請求項１に記載の断熱パネル。 The heat insulation panel according to claim 1, wherein the binder contains a thermosetting resin. 床パネルとして構成されている請求項１乃至３のいずれか一項に記載の断熱パネル。 The heat insulation panel as described in any one of Claims 1 thru | or 3 comprised as a floor panel. 第一の基材上に、エアロゲル粒子と、このエアロゲル粒子に付着しているバインダとを含有する混合材料を配置する工程、
第二の基材を前記第一の基材と対向させて配置すると共に前記第二の基材を前記混合材料と重ねる工程、及び
前記混合材料を加熱して前記エアロゲル粒子に含まれる隣合う粒子同士を前記バインダで接着することで、断熱材を形成する工程を含む断熱パネルの製造方法。 A step of disposing a mixed material containing airgel particles and a binder attached to the airgel particles on the first substrate;
A step of placing a second base material facing the first base material and superimposing the second base material on the mixed material; and adjoining particles contained in the airgel particles by heating the mixed material The manufacturing method of the heat insulation panel including the process of forming heat insulating material by adhere | attaching them with the said binder.
JP2013184295A 2013-09-05 2013-09-05 Thermal insulation panel and manufacturing method thereof Pending JP2015052210A (en)

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