JPH10324585A - Transparent porous body for heat-insulating and its production - Google Patents
Transparent porous body for heat-insulating and its productionInfo
- Publication number
- JPH10324585A JPH10324585A JP9132501A JP13250197A JPH10324585A JP H10324585 A JPH10324585 A JP H10324585A JP 9132501 A JP9132501 A JP 9132501A JP 13250197 A JP13250197 A JP 13250197A JP H10324585 A JPH10324585 A JP H10324585A
- Authority
- JP
- Japan
- Prior art keywords
- porous body
- heat
- film
- transparent porous
- insulating
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
- F24S80/50—Elements for transmitting incoming solar rays and preventing outgoing heat radiation; Transparent coverings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
- F24S80/50—Elements for transmitting incoming solar rays and preventing outgoing heat radiation; Transparent coverings
- F24S80/56—Elements for transmitting incoming solar rays and preventing outgoing heat radiation; Transparent coverings characterised by means for preventing heat loss
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Laminated Bodies (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
- Joining Of Glass To Other Materials (AREA)
- Silicon Compounds (AREA)
- Silicon Polymers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、可視光線透過性と
断熱性に優れる多孔体に関し、詳細には複合ガラスやソ
ーラーコレクター等に好適な断熱用透明多孔体及びその
製造方法に関するものである。尚、本発明に係る断熱用
透明多孔体はシリカエアロゲル等の透明かつ多孔質なエ
アロゲルを意味するものであるが、以下ではシリカエア
ロゲルを代表的に取りあげて本発明を説明する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a porous material having excellent visible light transmittance and heat insulating properties, and more particularly to a heat insulating transparent porous material suitable for a composite glass, a solar collector and the like, and a method for producing the same. The transparent porous body for heat insulation according to the present invention means a transparent and porous aerogel such as silica aerogel, but the present invention will be described below by taking silica aerogel as a representative.
【０００２】[0002]
【従来の技術】シリカエアロゲルは、多量の空洞を有し
て熱伝導率が極めて低いことから、断熱性能に非常に優
れた材料として注目されている。しかもシリカエアロゲ
ルは透明であり、可視光線透過率も高いので、住宅用の
断熱ガラスの充填材や、ソーラーコレクターの窓材等へ
の適用が検討されている。2. Description of the Related Art Silica aerogel has attracted attention as a material having extremely excellent heat insulating performance because it has a large amount of cavities and extremely low thermal conductivity. Moreover, since silica airgel is transparent and has a high visible light transmittance, application to a filler for insulating glass for home use, a window material for a solar collector, and the like is being studied.
【０００３】シリカエアロゲルを製造する方法として
は、アルコキシシランを用い加水分解・縮重合すること
により湿潤ゲルを作製し、溶媒をアルコール等に置換し
てエ−ジングした後、超臨界乾燥を行うことにより得る
ことができる。原料のアルコキシシランに、テトラメチ
ルオルソシリケート（ＴＭＯＳ）を用いた方法としては
U.S.P.4327065 やU.S.P.4432956 があり、テトラエチル
オルソシリケート（ＴＥＯＳ）を用いた方法としてはU.
S.P.4610863 がある。[0003] As a method for producing silica airgel, a wet gel is prepared by hydrolysis and polycondensation using an alkoxysilane, the solvent is replaced with alcohol or the like, followed by aging, followed by supercritical drying. Can be obtained by As a method using tetramethyl orthosilicate (TMOS) as the starting alkoxysilane,
There are USP4327065 and USP4432956. As a method using tetraethylorthosilicate (TEOS), U.S. Pat.
There is SP4610863.
【０００４】しかしながら、シリカエアロゲルは非常に
多量の空隙を有していることから、断熱性に優れる反
面、強度が０．１〜０．０５ＭＰａと極めて低く［日本
風力エネルギー協会合同研究発表会講演論文集（日本太
陽エネルギー学会）ｐ２３７，１９９３年］、これを断
熱ガラスやソーラーコレクターの窓材として利用しよう
としてもハンドリングの際に壊れやすく、実用化されて
いないのが現状である。[0004] However, since silica aerogel has a very large amount of voids, it has excellent heat insulation properties, but has an extremely low strength of 0.1 to 0.05 MPa [Papers presented at the Joint Research Presentation Meeting of the Japan Wind Energy Association. (Japanese Society of Solar Energy), p. 237, 1993], and even if it is used as a heat insulating glass or a window material for a solar collector, it is fragile at the time of handling and has not been put to practical use.
【０００５】[0005]
【発明が解決しようとする課題】本発明は上記事情に着
目してなされたものであって、シリカエアロゲルが有す
る優れた可視光線透過性や断熱性をほとんど損なうこと
なく、強度を大幅に改善してハンドリングが可能である
断熱用透明多孔体及びその製造方法を提供しようとする
ものである。DISCLOSURE OF THE INVENTION The present invention has been made in view of the above circumstances, and significantly improves the strength without substantially impairing the excellent visible light transmittance and heat insulating properties of silica airgel. And a method for producing the same.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決した本発
明とは、エアロゲルからなる断熱用透明多孔体であっ
て、表面の全部又は一部に透明樹脂による保護被膜が形
成されていることを要旨とするものである。上記透明樹
脂の保護被膜としては、熱軟化性樹脂であるエチレン／
酢酸ビニル共重合体に低密度ポリエチレンが積層された
フィルムで構成されたものを用いることが推奨される。Means for Solving the Problems The present invention, which has solved the above-mentioned problems, relates to a heat-insulating transparent porous body made of aerogel, wherein a protective coating made of a transparent resin is formed on all or a part of the surface. It is an abstract. As the protective film of the transparent resin, the heat-softening resin ethylene /
It is recommended to use a film composed of a film in which a low-density polyethylene is laminated on a vinyl acetate copolymer.
【０００７】上記断熱用透明多孔体を製造するにあたっ
ては、熱軟化性樹脂からなるフィルムを、エアロゲルか
らなる断熱用透明多孔体の表面に置き、真空引きするこ
とによって断熱用透明多孔体の表面に保護被膜を形成す
ることができる。[0007] In manufacturing the above-mentioned heat-insulating transparent porous body, a film made of a heat-softening resin is placed on the surface of the heat-insulating transparent porous body made of aerogel, and the surface of the heat-insulating transparent porous body is evacuated. A protective coating can be formed.
【０００８】この様にして得られた断熱用透明多孔体は
可視光線透過率が８０％以上で、熱伝導率が１Ｗ／ｍ・
Ｋ以下であると共に、ハンドリングは問題なく行うこと
ができるので、複合ガラスやソーラーコレクター等に内
装することが可能となり、その断熱性を大幅に向上させ
ることができる。The transparent porous body for heat insulation thus obtained has a visible light transmittance of 80% or more and a thermal conductivity of 1 W / m ·
Since the temperature is not more than K and the handling can be performed without any problem, it is possible to install in a composite glass, a solar collector or the like, and the heat insulating property can be greatly improved.
【０００９】[0009]
【発明の実施の形態】本発明者らは、シリカエアロゲル
の強度改善について鋭意研究を行った結果、シリカエア
ロゲルが壊れやすいのは、引張応力に対して極めて弱い
からであって、圧縮応力に対しては強いとの知見を得
た。そこでハンドリングの際に、シリカエアロゲルに圧
縮応力が働くように構成すれば十分な強度を発揮するの
ではないかと考え、更に研究を重ねた結果、シリカエア
ロゲルの表面に樹脂層を形成すればハンドリングの際に
圧縮応力だけをかけることが可能となり、ハンドリング
性が大幅に向上することを突き止め、本発明に想到し
た。BEST MODE FOR CARRYING OUT THE INVENTION As a result of intensive studies on the improvement of the strength of silica aerogels, the present inventors have found that silica aerogels are fragile because they are extremely weak against tensile stress. Was found to be strong. Therefore, it is thought that sufficient strength can be exhibited if the structure is designed so that compressive stress acts on the silica airgel during handling.As a result of further research, if a resin layer is formed on the surface of the silica airgel, handling will be improved. In this case, it was possible to apply only compressive stress, and it was found that the handling property was greatly improved, and the present invention was reached.
【００１０】但し、前述の通り、シリカエアロゲルは多
量の微細な空隙を有する多孔体である。この多孔体の表
面に、重合反応で硬化する樹脂であって、硬化に長時間
を必要とする樹脂を塗布することにより樹脂層を形成し
ようとしても、硬化中に樹脂が毛細管現象によりシリカ
エアロゲル中に浸透して、収縮し白濁するキセロゲル化
が起こってしてしまう。従って、本発明では透明な熱軟
化性樹脂のフィルムを用いて、これを断熱用透明多孔体
の表面に融着させることにより保護皮膜を形成するもの
である。However, as described above, silica airgel is a porous material having a large number of fine voids. Even if an attempt is made to form a resin layer by applying a resin that is cured by a polymerization reaction and requires a long time for curing to the surface of the porous body, the resin is hardened in the silica airgel due to a capillary phenomenon during the curing. And xerogelation, which shrinks and becomes cloudy, occurs. Therefore, in the present invention, a protective film is formed by using a transparent heat-softening resin film and fusing it to the surface of the heat-insulating transparent porous body.
【００１１】本発明で用いる樹脂としては、熱で軟化し
瞬時に硬化するエチレン／酢酸ビニル共重合体（ＥＶ
Ａ）等のような熱軟化性樹脂が望ましい。但し、製造工
程においてロール状の樹脂フィルムを引出しながら用い
る場合には、上記ＥＶＡフィルムは互いに密着してはが
れにくいので、低密度ポリエチレンが積層されたものを
用いることが、製造時の作業性の観点から望ましい。The resin used in the present invention is an ethylene / vinyl acetate copolymer (EV
Thermosoftening resins such as A) are desirable. However, when the roll-shaped resin film is used while being pulled out in the manufacturing process, the EVA films are hardly adhered to each other and are not easily peeled off. Desirable.
【００１２】断熱用透明多孔体の形状としては、円板状
（円柱），板状（直方体），六角柱状等種々のものがあ
るが、少なくともハンドリングできる様に表面の一部に
保護皮膜を形成すればよいが、例えば板状の断熱用透明
多孔体の場合、全面に保護皮膜を設けることが強度向上
の観点から望ましい。As the shape of the transparent porous body for heat insulation, there are various shapes such as a disk shape (column), a plate shape (rectangular shape), a hexagonal prism shape, and at least a protective film is formed on a part of the surface so that it can be handled. For example, in the case of a plate-shaped heat-insulating transparent porous body, it is desirable to provide a protective film on the entire surface from the viewpoint of improving strength.
【００１３】図１は、本発明に係る断熱用透明多孔体の
製造方法を示す概略工程説明図である。（ａ）まず、真
空引き用ステージ２の上にシリカエアロゲル１を置き、
（ｂ）ＥＶＡフィルムと低密度ポリエチレンの積層フィ
ルム３を加熱・軟化させ、エアロゲル１上に載置し、真
空引きを行い、（ｃ）上記積層フィルム３の余分な部分
は切り取れば、表面に透明樹脂による保護皮膜が形成さ
れた断熱用透明多孔体を得ることができる。更に、
（ｄ）上記断熱用透明多孔体を裏返して、再度真空引き
用ステージ２の上に置き、ＥＶＡフィルムと低密度ポリ
エチレンからなる前記積層フィルム４を加熱・軟化させ
て被覆して、（ｅ）積層フィルム４の余分な部分を取り
除けば全面に保護被膜が形成された断熱用透明多孔体を
得ることができる。FIG. 1 is a schematic process explanatory view showing a method for producing a heat insulating transparent porous body according to the present invention. (A) First, the silica airgel 1 is placed on the evacuation stage 2,
(B) The laminated film 3 of the EVA film and the low-density polyethylene is heated and softened, placed on the airgel 1 and evacuated, and (c) the surplus portion of the laminated film 3 is cut off to make the surface transparent. A heat-insulating transparent porous body having a resin protective film formed thereon can be obtained. Furthermore,
(D) The heat-insulating transparent porous body is turned over, placed again on the vacuuming stage 2, and heated and softened to cover the laminated film 4 made of an EVA film and low-density polyethylene. By removing an excess portion of the film 4, a transparent heat insulating porous body having a protective coating formed on the entire surface can be obtained.
【００１４】本発明の断熱用透明多孔体は、エアロゲル
の有する断熱性及び透明性を確保したままで、強度の向
上が図られているので、複合ガラスやソーラーコレクタ
ーに内装して用いることができ、熱効率の大幅な向上を
期待できる。本発明の断熱用透明多孔体を複合ガラスに
用いる場合には、本発明の断熱用透明多孔体を一対のガ
ラスの間に介装すれば良く、ソーラーコレクターに用い
る場合には防護板（強化ガラス）の裏に配設すれば良
い。Since the transparent porous body for heat insulation of the present invention is improved in strength while maintaining the heat insulating property and transparency possessed by aerogel, it can be used in a composite glass or a solar collector. , A significant improvement in thermal efficiency can be expected. When the transparent porous body for heat insulation of the present invention is used for composite glass, the transparent porous body for heat insulation of the present invention may be interposed between a pair of glasses. When used for a solar collector, a protective plate (tempered glass) is used. ) Can be arranged behind it.
【００１５】以下、本発明を実施例によって更に詳細に
説明するが、下記実施例は本発明を限定する性質のもの
ではなく、前・後記の主旨に徴して設計変更することは
いずれも本発明の技術的範囲内に含まれるものである。Hereinafter, the present invention will be described in more detail with reference to Examples. However, the following Examples are not intended to limit the present invention, and any design change based on the above and following gist will be described. Are included within the technical scope of
【００１６】[0016]
【実施例】まず従来例を示した上で、本発明を完成する
までの経過の実験を参考例として示し、次いで本発明の
実施例を示す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a conventional example will be described, and an experiment of the progress of the present invention will be described as a reference example.
【００１７】＜従来例＞ＴＭＯＳを原料として、加水分
解法で縮重合させ湿潤ゲル（アルコゲル状のシリカ）を
作製した。これをエタノール中で溶媒置換し、エージン
グした。次いでエタノールを媒体にして、上記湿潤ゲル
を２８０℃で超臨界乾燥し、シリカエアロゲルを得た。<Conventional Example> A wet gel (alcogel-like silica) was prepared from TMOS as a raw material by condensation polymerization by a hydrolysis method. This was solvent-substituted in ethanol and aged. Then, the wet gel was supercritically dried at 280 ° C. using ethanol as a medium to obtain a silica airgel.
【００１８】このシリカエアロゲルの抗折強度を測定し
たところ、０．０５ＭＰａであり、手で軽く触るだけで
微少な割れが生じた。また普通にハンドリングできず、
ソーラーコレクターや複合ガラスに組み込むことができ
なかった。The flexural strength of this silica airgel was measured and was found to be 0.05 MPa, and slight cracks were generated by light touch with the hand. Also, it can not be handled normally,
It could not be incorporated into solar collectors or composite glass.
【００１９】尚、本発明において抗折強度は三点曲げ試
験により以下の条件で測定した。 試験片サイズ：１０×１０×８０ｍｍ スパン長 ：５０ｍｍ ロードセル ：１００ｇｆフルスケール 荷重印加速度：５ｍｍ／ｍｉｎIn the present invention, the bending strength was measured by a three-point bending test under the following conditions. Test piece size: 10 × 10 × 80 mm Span length: 50 mm Load cell: 100 gf full scale Load application speed: 5 mm / min
【００２０】＜参考例１＞不飽和ポリエステル（液体
状）に硬化剤を添加し、その後、速やかにシリカエアロ
ゲル上に塗布した。その後、室温において２時間硬化さ
せたところ、樹脂は硬化中にシリカエアロゲル中に浸透
し、樹脂の表面は白濁してしまった。白濁した原因とし
て、樹脂が硬化中にシリカエアロゲル中の微細な空隙に
浸透し、その時の表面張力でシリカエアロゲルが収縮
し、キセロゲル化して白濁したものと考えられる。Reference Example 1 A curing agent was added to unsaturated polyester (in liquid form), and then immediately applied to silica airgel. Thereafter, when the resin was cured at room temperature for 2 hours, the resin permeated into the silica airgel during curing, and the surface of the resin became cloudy. It is considered that the cause of the white turbidity is that the resin permeated into fine voids in the silica airgel during curing, and the silica airgel shrunk due to the surface tension at that time, turned into xerogel, and became cloudy.
【００２１】＜参考例２＞エタノール中にヒドロキシプ
ロピルセルロースを溶解した液体を、シリカエアロゲル
表面に塗布し、室温にて１２時間真空中で乾燥させた。
ところが、この材料も参考例１と同様に表面が白濁して
しまい、シリカエアロゲルの有する透光性を著しく劣化
させる結果となった。この場合も参考例１と同様、液体
が空隙に浸透し、表面張力によってエアロゲルがキセロ
ゲル化したためと考えられる。Reference Example 2 A liquid obtained by dissolving hydroxypropylcellulose in ethanol was applied to the surface of a silica airgel and dried in a vacuum at room temperature for 12 hours.
However, the surface of this material became cloudy as in Reference Example 1, resulting in a significant deterioration in the light transmittance of the silica airgel. In this case, as in Reference Example 1, it is considered that the liquid permeated into the voids and the airgel turned into xerogel due to surface tension.
【００２２】＜参考例３＞参考例１及び参考例２の結果
から、シリカエアロゲル中の空隙に樹脂を浸透させるこ
となく、樹脂を塗布することを考えた。シリカエアロゲ
ルの表面は強い疎水性を有していることから、水溶性樹
脂を塗布し乾燥すれば白濁化（キセロゲル化）の問題な
く樹脂をシリカエアロゲル表面上に形成できるのではな
いかと考えた。そこで、ポリビニールアルコール（ＰＶ
Ａ）を純水に溶解して得られた水溶液をシリカエアロゲ
ル上に塗布し、５０℃にて１２時間真空中で乾燥させ
た。ところが、乾燥中にシリカエアロゲルから樹脂が剥
離し、保護皮膜として形成することができなかった。<Reference Example 3> Based on the results of Reference Examples 1 and 2, it was considered to apply the resin without allowing the resin to penetrate into the voids in the silica airgel. Since the surface of the silica airgel has strong hydrophobicity, it was thought that if a water-soluble resin was applied and dried, the resin could be formed on the silica airgel surface without any problem of clouding (xerogelation). Therefore, polyvinyl alcohol (PV
An aqueous solution obtained by dissolving A) in pure water was applied on silica airgel, and dried in vacuum at 50 ° C. for 12 hours. However, the resin peeled off from the silica airgel during drying, and could not be formed as a protective film.
【００２３】実施例１ ＥＶＡフィルムに低密度ポリエチレンが積層されたフィ
ルムロールの一端からフィルムを引き出し、加熱炉にて
約１分間加熱した。一方、真空引き用の穴を多数有する
ステージ上にシリカエアロゲルを置き、真空ポンプを作
動させ、シリカエアロゲルの上方に軟化した上記フィル
ムを載置し、シリカエアロゲル上に上記フィルムを融着
させた［図１の(a),(b) の工程］。上記フィルムが融着
したシリカエアロゲルをステージ上より切り取り、片面
と側面がフィルムで覆われた断熱用透明多孔体を作製し
た［図１の(c) の工程］。 Example 1 A film was drawn from one end of a film roll in which low-density polyethylene was laminated on an EVA film, and heated in a heating furnace for about 1 minute. On the other hand, the silica airgel was placed on a stage having a large number of holes for evacuation, the vacuum pump was operated, the softened film was placed above the silica airgel, and the film was fused on the silica airgel [ Steps (a) and (b) of FIG. 1]. The silica airgel to which the above film was fused was cut off from the stage to prepare a transparent porous body for heat insulation in which one surface and side surfaces were covered with the film [step (c) of FIG. 1].
【００２４】実施例２ 実施例１で作製した断熱用透明多孔体を裏返して真空引
き用ステージ上に乗せ、図１の（ｄ），（ｅ）の工程を
行った。真空引き開始直後は十分に脱気できず、上方の
フィルムが太鼓状に膨らんだが、時間が経過すると共に
膨らみは小さくなり、フィルムを融着することができ
た。この結果、シリカエアロゲルは両面ともフィルムで
覆われた。 Example 2 The transparent porous body for heat insulation prepared in Example 1 was turned upside down and mounted on a vacuuming stage, and the steps (d) and (e) of FIG. 1 were performed. Immediately after the evacuation was started, the film could not be sufficiently degassed and the upper film swelled like a drum. However, the swelling became smaller as time passed, and the film could be fused. As a result, both surfaces of the silica airgel were covered with the film.
【００２５】以上の従来例，参考例，実施例で得られた
断熱用透明多孔体に関して、抗析強度，透過率及び熱伝
導率を調べた。尚、透過率の測定は、透過率測定装置
（島津製作所製，UV-240）を用いて、硫酸バリウムの白
色粉末に、入射光を通過させた時の透過率を０％とし、
試料なし（空気）の場合の透過率を１００％とし、試料
に入射光を通過させたときの透過度の強度を波長スキャ
ンさせながら測定した。また熱伝導率の測定は、非定常
細線加熱法（ＪＩＳ Ｒ ２６１９）に基づき行った。
結果は表１に示す。With respect to the transparent porous body for heat insulation obtained in the above conventional examples, reference examples, and examples, the coagulation strength, transmittance and thermal conductivity were examined. The transmittance was measured by using a transmittance measuring device (manufactured by Shimadzu Corporation, UV-240), and setting the transmittance of incident light to 0% to white barium sulfate powder,
The transmittance without the sample (air) was taken as 100%, and the intensity of the transmittance when passing incident light through the sample was measured while scanning the wavelength. The measurement of the thermal conductivity was performed based on the unsteady fine wire heating method (JIS R 2619).
The results are shown in Table 1.
【００２６】[0026]
【表１】 [Table 1]
【００２７】本発明のシリカエアロゲルは、可視光線透
過率は８０％以上という満足できる程度の可視光線透過
性を有していると共に、断熱性は従来例よりほとんど低
下することなく、強度が大幅に向上しておりハンドリン
グが可能になったことが分かる。The silica airgel of the present invention has a visible light transmittance of 80% or more and a satisfactory degree of visible light transmittance, and its heat insulating property is hardly reduced compared to the conventional example, and the strength is greatly increased. It can be seen that the handling has been improved.
【００２８】[0028]
【発明の効果】本発明は以上のように構成されているの
で、シリカエアロゲルが有する優れた可視光線透過性や
断熱性をほとんど損なうことなく、強度を大幅に改善し
てハンドリングが可能な断熱用透明多孔体及びその製造
方法が提供できることとなり、これまで実用化されてい
なかった複合ガラス及びソーラーコレクターに適用する
ことが可能となった。Since the present invention is constituted as described above, it is possible to improve the strength of the silica airgel and to handle it with little improvement in the heat insulating property without substantially impairing the heat insulating property. A transparent porous body and a method for producing the same can be provided, and can be applied to a composite glass and a solar collector that have not been put into practical use until now.
【図１】本発明に係る断熱用透明多孔体の製造方法を示
す概略工程説明図である。FIG. 1 is a schematic process explanatory view showing a method for producing a heat-insulating transparent porous body according to the present invention.
１ シリカエアロゲル ２ 真空引き用ステージ ３ 積層フィルム ４ 積層フィルム DESCRIPTION OF SYMBOLS 1 Silica airgel 2 Stage for vacuum evacuation 3 Multilayer film 4 Multilayer film
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｃ０８Ｇ 77/02 Ｃ０８Ｇ 77/02 (72)発明者 山形 昌弘 大阪市中央区備後町４丁目１番３号 株式 会社神戸製鋼所大阪支社内 (72)発明者 福里 隆一 大阪市中央区備後町４丁目１番３号 株式 会社神戸製鋼所大阪支社内 (72)発明者 長瀬 佳之 大阪市中央区備後町４丁目１番３号 株式 会社神戸製鋼所大阪支社内 (72)発明者 平松 正義 愛知県名古屋市緑区大高町字北関山20番地 の１ 中部電力株式会社電気利用技術研究 所内 (72)発明者 春日 智子 愛知県名古屋市緑区大高町字北関山20番地 の１ 中部電力株式会社電気利用技術研究 所内 (72)発明者 平岩 鉄也 愛知県名古屋市緑区大高町字北関山20番地 の１ 中部電力株式会社電気利用技術研究 所内──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI C08G77 / 02 C08G77 / 02 (72) Inventor Masahiro Yamagata 4-3-1 Bingocho, Chuo-ku, Osaka Kobe Steel, Ltd. Osaka Branch Office (72) Inventor Ryuichi Fukusato 4-1-1, Bingo-cho, Chuo-ku, Osaka-shi Kobe Steel, Ltd. Osaka Branch Office (72) Inventor Yoshiyuki Nagase 4-3-1, Bigo-cho, Chuo-ku, Osaka-shi Kobe Steel, Ltd.Osaka Branch Office (72) Inventor Masayoshi Hiramatsu 20-1, Kitakanyama, Odaka-cho, Midori-ku, Nagoya-shi, Aichi Prefecture Chubu Electric Power Company Electricity Research Institute (72) Inventor Tomoko Kasuga Nagoya, Aichi Prefecture No. 20 Kita-Sanzan, Odaka-cho, Midori-ku No. 1 Chubu Electric Power Co., Inc. Electricity Research Institute (72) Inventor Tetsuya Hiraiwa 20 Kita-Kanzan, Odaka-cho, Midori-ku, Nagoya City, Aichi Prefecture 1 Chubu Electric Power Co., Inc. electrical use technology research house of the earth
Claims (7)
あって、 表面の全部又は一部に透明樹脂による保護被膜が形成さ
れていることを特徴とする断熱用透明多孔体。1. A heat-insulating transparent porous body comprising an airgel, wherein a protective coating made of a transparent resin is formed on all or a part of the surface.
率が１Ｗ／ｍ・Ｋ以下である請求項１に記載の断熱用透
明多孔体。2. The heat insulating transparent porous body according to claim 1, wherein the visible light transmittance is 80% or more and the thermal conductivity is 1 W / m · K or less.
求項１または２に記載の断熱用透明多孔体。3. The heat insulating transparent porous body according to claim 1, wherein the transparent resin is a thermosoftening resin.
共重合体に低密度ポリエチレンが積層されたフィルムで
構成されたものである請求項１〜３のいずれかに記載の
断熱用透明多孔体。4. The transparent porous body for heat insulation according to claim 1, wherein the protective film is formed of a film in which low-density polyethylene is laminated on an ethylene / vinyl acetate copolymer.
ロゲルからなる断熱用透明多孔体の表面に置き、真空引
きすることによって断熱用透明多孔体の表面に保護被膜
を形成することを特徴とする断熱用透明多孔体の製造方
法。5. A protective film is formed on a surface of a transparent porous body for heat insulation by placing a film made of a thermosoftening resin on the surface of a transparent porous body for heat insulation made of aerogel, and evacuating the film. A method for producing a transparent porous body for heat insulation.
透明多孔体を内装してなることを特徴とする複合ガラ
ス。6. A composite glass comprising the transparent porous body for heat insulation according to claim 1 inside.
透明多孔体を内装してなることを特徴とするソーラーコ
レクター。7. A solar collector comprising the heat-insulating transparent porous body according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9132501A JPH10324585A (en) | 1997-05-22 | 1997-05-22 | Transparent porous body for heat-insulating and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9132501A JPH10324585A (en) | 1997-05-22 | 1997-05-22 | Transparent porous body for heat-insulating and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10324585A true JPH10324585A (en) | 1998-12-08 |
Family
ID=15082850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9132501A Pending JPH10324585A (en) | 1997-05-22 | 1997-05-22 | Transparent porous body for heat-insulating and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10324585A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001015214A1 (en) * | 1999-08-23 | 2001-03-01 | Alliedsignal Inc. | Nanoporous silica treated with siloxane polymers for ulsi applications |
| WO2001034382A1 (en) * | 1999-11-10 | 2001-05-17 | Matsushita Electric Works, Ltd. | Aerogel substrate and method for preparing the same |
| WO2006048690A3 (en) * | 2004-11-08 | 2006-08-17 | Gen Applic For Special Materia | Insulating material |
| JP2007505278A (en) * | 2003-09-08 | 2007-03-08 | テクニップ フランス | Improved centering device for rigid double wall ducts with low heat transfer coefficient |
| KR100763430B1 (en) | 2006-11-23 | 2007-10-04 | (주)에스케이아이 | Heat insulating material |
| JP2009539648A (en) * | 2006-06-06 | 2009-11-19 | スリーエム イノベイティブ プロパティズ カンパニー | Infrared reflective insulation glass unit |
| JP2011064385A (en) * | 2009-09-16 | 2011-03-31 | Daiwa House Industry Co Ltd | Solar heat collecting structure |
| JP2011071509A (en) * | 2009-09-22 | 2011-04-07 | Asml Netherlands Bv | Support or table for lithographic apparatus, method of manufacturing such support or table, and lithographic apparatus comprising such support or table |
| JP2011121513A (en) * | 2009-12-11 | 2011-06-23 | Sekisui Chem Co Ltd | Natural lighting-heat insulating device for vehicle |
| KR101237013B1 (en) | 2012-07-02 | 2013-02-25 | 에어로젤테크날로지 주식회사 | Insulating material containing aerogel and method for preparing the same |
| KR101508490B1 (en) * | 2014-07-18 | 2015-04-07 | 주식회사 대원솔라 | Improved heat retention and insulation films for agriculture |
-
1997
- 1997-05-22 JP JP9132501A patent/JPH10324585A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001015214A1 (en) * | 1999-08-23 | 2001-03-01 | Alliedsignal Inc. | Nanoporous silica treated with siloxane polymers for ulsi applications |
| WO2001034382A1 (en) * | 1999-11-10 | 2001-05-17 | Matsushita Electric Works, Ltd. | Aerogel substrate and method for preparing the same |
| US6740416B1 (en) | 1999-11-10 | 2004-05-25 | Matsushita Electric Works, Ltd. | Aerogel substrate and method for preparing the same |
| JP2007505278A (en) * | 2003-09-08 | 2007-03-08 | テクニップ フランス | Improved centering device for rigid double wall ducts with low heat transfer coefficient |
| WO2006048690A3 (en) * | 2004-11-08 | 2006-08-17 | Gen Applic For Special Materia | Insulating material |
| JP2009539648A (en) * | 2006-06-06 | 2009-11-19 | スリーエム イノベイティブ プロパティズ カンパニー | Infrared reflective insulation glass unit |
| KR100763430B1 (en) | 2006-11-23 | 2007-10-04 | (주)에스케이아이 | Heat insulating material |
| JP2011064385A (en) * | 2009-09-16 | 2011-03-31 | Daiwa House Industry Co Ltd | Solar heat collecting structure |
| JP2011071509A (en) * | 2009-09-22 | 2011-04-07 | Asml Netherlands Bv | Support or table for lithographic apparatus, method of manufacturing such support or table, and lithographic apparatus comprising such support or table |
| JP2011121513A (en) * | 2009-12-11 | 2011-06-23 | Sekisui Chem Co Ltd | Natural lighting-heat insulating device for vehicle |
| KR101237013B1 (en) | 2012-07-02 | 2013-02-25 | 에어로젤테크날로지 주식회사 | Insulating material containing aerogel and method for preparing the same |
| KR101508490B1 (en) * | 2014-07-18 | 2015-04-07 | 주식회사 대원솔라 | Improved heat retention and insulation films for agriculture |
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