JP2010174060A - Vermiculite-containing composition - Google Patents

Vermiculite-containing composition Download PDF

Info

Publication number
JP2010174060A
JP2010174060A JP2009015382A JP2009015382A JP2010174060A JP 2010174060 A JP2010174060 A JP 2010174060A JP 2009015382 A JP2009015382 A JP 2009015382A JP 2009015382 A JP2009015382 A JP 2009015382A JP 2010174060 A JP2010174060 A JP 2010174060A
Authority
JP
Japan
Prior art keywords
vermiculite
containing composition
building material
organic binder
vinyl acetate
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
Application number
JP2009015382A
Other languages
Japanese (ja)
Inventor
Masanaga Sakaguchi
正長 坂口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP2009015382A priority Critical patent/JP2010174060A/en
Publication of JP2010174060A publication Critical patent/JP2010174060A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B26/16—Polyurethanes
    • 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
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • 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
    • C04B2111/52—Sound-insulating materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vermiculite-containing composition that takes advantage of vermiculite properties to maximum, exhibits higher heat insulation effect and sound absorbing effect than a case in which vermiculite is used as an aggregate for gypsum board, etc., and has a higher reliability as a building material than a building material using a conventional vinyl acetate polymer and a urethane polymer as a binder. <P>SOLUTION: The vermiculite-containing composition comprises an organic binder composed of a mixed resin of an ethylene-vinyl acetate polymer and a urethane polymer and expanded vermiculite. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

この発明は、主に建材に用いて断熱、吸音、結露防止などの効果を得ることができる、バーミキュライトを含有する組成物に関する。   The present invention relates to a composition containing vermiculite that can be used mainly as a building material to obtain effects such as heat insulation, sound absorption, and prevention of condensation.

バーミキュライトは、ヒル石を焼結膨張させた材料である。膨張により多孔質の構造となっていることから、保水性、保肥性が高いため、園芸用土壌の材料として一般に用いられている。また、壁面に用いる石膏ボードの骨材としても使われている。例えば特許文献１には、バーミキュライトをセメントや珪酸カルシウム、スラグ石膏などと配合した建材組成物が記載されている。このようなバーミキュライトを含む建材は、バーミキュライトの比重が軽いために軽量であるという利点を有し、また、内部に空気の層を含むことから一定の断熱効果、吸音効果を発揮する。石膏ボードは現在の建築現場においては安価な壁材として広く使われており、安価に有益な効果を付加できるバーミキュライト含有建材は有用である。   Vermiculite is a material obtained by sintering and expanding leeches. Since it has a porous structure due to expansion, it has high water retention and fertilizer retention, and is therefore generally used as a material for horticultural soil. It is also used as an aggregate for gypsum board used on wall surfaces. For example, Patent Document 1 describes a building material composition in which vermiculite is blended with cement, calcium silicate, slag gypsum, or the like. Such a building material containing vermiculite has the advantage of being lightweight because the specific gravity of vermiculite is light, and also exhibits a certain heat insulating effect and sound absorbing effect because it contains an air layer inside. Gypsum board is widely used as an inexpensive wall material in current construction sites, and vermiculite-containing building materials that can add beneficial effects at low cost are useful.

ただし、バーミキュライトを骨材として用いた建材組成物は、バーミキュライトによる断熱効果や吸音効果があるものの、バーミキュライトの周囲をセメントなどが覆っており、そのセメントなどが建材の両面を繋げているので、それらが熱や音を伝達してしまい、場合によっては断熱効果や吸音効果が不十分になる場合があった。このため、内壁の結露防止剤として用いてもその効果は限定的なものであった。   However, although the building material composition using vermiculite as an aggregate has a heat insulating effect and sound absorption effect by vermiculite, cement is covered around the vermiculite, and the cement etc. connects both sides of the building material. May transmit heat and sound, and in some cases, the heat insulating effect and the sound absorbing effect may be insufficient. For this reason, even if it used as a dew condensation prevention agent for an inner wall, the effect was limited.

これに対して、ポリ酢酸ビニルなどの接着剤を用いてバーミキュライトを固めた塗装用組成物が考案されている（特許文献２［００１６］）。このような組成物からなる層を建材の表面に形成させることで、セメントなどを含む場合よりも熱や音がより伝達しにくい、より空気含有率の高い層を有する建材とすることができる。また、バーミキュライト自体は鉱物であるので、接着剤の含有量が少なければ難燃材としても利用することができる。   In contrast, a coating composition in which vermiculite is hardened using an adhesive such as polyvinyl acetate has been devised (Patent Document 2 [0016]). By forming a layer made of such a composition on the surface of the building material, it is possible to obtain a building material having a layer with a higher air content rate, which is more difficult to transmit heat and sound than when cement or the like is included. Further, since vermiculite itself is a mineral, it can be used as a flame retardant if the adhesive content is low.

また、未膨張のバーミキュライトをポリ酢酸ビニルやウレタンなどの有機バインダーと混合した塗装用組成物（特許文献３）や、未焼成バーミキュライトを水ガラスで固めたものが開示されている。これらは建材に用いるものの、上記のものとは使用目的が異なり、耐火性を目的としたものである。火事の際の高熱環境では未膨張であったバーミキュライトが、埋め込まれた建材内部で膨張することで、緊急時に耐火性を発揮する。   Moreover, the composition for a coating (patent document 3) which mixed unexpanded vermiculite with organic binders, such as a polyvinyl acetate and urethane, and what hardened the unbaked vermiculite with water glass are disclosed. Although these are used for building materials, the purpose of use is different from the above, and the purpose is fire resistance. Vermiculite, which has not been expanded in a high heat environment during a fire, expands inside the embedded building material, and exhibits fire resistance in an emergency.

特開２００７−１０６６７１号公報JP 2007-106671 A 特開２００４−３０７７７８号公報JP 2004-307778 A 特開２００２−２８５０３７号公報JP 2002-285037 A

しかしながら、酢酸ビニルを接着剤としてバーミキュライトを固めたものは、酢酸ビニルの耐熱性が十分ではないので、夏場の直射日光に曝されるビルのような８０℃ほどにもなる環境では溶けてしまい、形状が維持できなくなるおそれがあった。また、酢酸ビニルは耐水性も不十分であるため、建材の外側に向けることはできず、外壁の内面側に用いるしかなかった。しかし、建材自体がひび割れて水が浸入してきた場合には劣化することが避けられず、直接水が浸入しなくても湿気が外壁と内壁との間に充満した場合には同様に劣化してしまった。   However, the hardened vermiculite with vinyl acetate as an adhesive melts in an environment as high as 80 ° C such as a building exposed to direct sunlight in the summer, because the heat resistance of vinyl acetate is not sufficient. There was a risk that the shape could not be maintained. Further, since vinyl acetate has insufficient water resistance, it cannot be directed to the outside of the building material and must be used on the inner surface side of the outer wall. However, if the building material itself is cracked and water enters, it is inevitable that it will deteriorate, and even if water does not enter directly, if the moisture fills between the outer wall and the inner wall, it will deteriorate as well. Oops.

また、未膨張のバーミキュライトを用いたものは、膨張するまでは軽量でも多孔質でもないため、断熱効果、吸音効果などは発揮できなかった。また、有機バインダーとして酢酸ビニルを用いた場合は上記と同様に耐熱性、耐水性の問題があり、有機バインダーとしてウレタンを用いた場合には疎水性であるためにバーミキュライトが十分に保持できずに剥落する場合があった。   Moreover, since the thing using the unexpanded vermiculite is neither lightweight nor porous until it expand | swells, the heat insulation effect, the sound absorption effect, etc. were not able to be exhibited. In addition, when vinyl acetate is used as the organic binder, there are problems of heat resistance and water resistance as described above, and when urethane is used as the organic binder, vermiculite cannot be sufficiently retained because it is hydrophobic. There was a case of peeling off.

そこでこの発明は、バーミキュライトが有する性質を最大限に利用し、バーミキュライトを石膏ボード等の骨材に用いるよりも、より高い断熱効果、吸音効果を発揮でき、従来の酢酸ビニルやウレタンをバインダーとして用いたものよりも建材としての信頼性が高いバーミキュライト含有組成物を作製することを目的とする。   Therefore, this invention makes the best use of the properties of vermiculite, can exhibit higher heat insulation effect and sound absorption effect than using vermiculite for aggregates such as gypsum board, and uses conventional vinyl acetate and urethane as a binder. The object is to produce a vermiculite-containing composition that is more reliable as a building material than the conventional one.

この発明は、バーミキュライトをエチレン−酢酸ビニル共重合体とウレタンとの混合樹脂と混合した組成物を用いることにより、上記の課題を解決したのである。エチレン−酢酸ビニル共重合体は親水性と疎水性の両方の性質を有しており、また、ポリ酢酸ビニルよりも耐熱性及び耐水性に優れている。しかし、それだけではバーミキュライトを固める接着剤としては不十分であり、ウレタンと混合することで、上記の問題を解決しうる混合樹脂として、バーミキュライトを好適に固めることができる。また、ポリ酢酸ビニルを単独で使用するよりも高い接着力を発揮するため、不燃材としても利用しやすい。   The present invention solves the above problems by using a composition in which vermiculite is mixed with a mixed resin of ethylene-vinyl acetate copolymer and urethane. The ethylene-vinyl acetate copolymer has both hydrophilic and hydrophobic properties, and is more excellent in heat resistance and water resistance than polyvinyl acetate. However, it is not sufficient as an adhesive that hardens vermiculite, and by mixing with urethane, vermiculite can be suitably hardened as a mixed resin that can solve the above problems. Moreover, since it exhibits higher adhesive force than using polyvinyl acetate alone, it can be easily used as a non-combustible material.

この発明にかかるバーミキュライト含有組成物を石膏ボードなどの建材表面に塗工することで、水と接触したり、高湿度の大気に曝されたり、高温環境下に置かれたとしても、バーミキュライトが剥落しにくい断熱吸音層を形成させることができる。このような断熱吸音層を形成させた建材を用いることで、壁面の結露を防止し、高い防音効果を発揮する、耐久性の高い壁材となる。   By applying the vermiculite-containing composition according to the present invention to the surface of a building material such as gypsum board, the vermiculite is peeled off even if it is in contact with water, exposed to high humidity air, or placed in a high temperature environment. It is possible to form a heat-insulating sound-absorbing layer that is difficult to perform. By using a building material in which such a heat insulating sound absorbing layer is formed, it becomes a highly durable wall material that prevents condensation on the wall surface and exhibits a high soundproofing effect.

この発明にかかるバーミキュライト含有組成物を塗工した板材の斜視写真Perspective photograph of plate material coated with vermiculite-containing composition according to this invention この発明にかかるバーミキュライト含有組成物を塗工した板材の塗工表面写真Coating surface photograph of plate material coated with vermiculite-containing composition according to this invention この発明にかかるバーミキュライト含有組成物を塗工した板材の断面写真Cross-sectional photograph of plate material coated with vermiculite-containing composition according to this invention

以下、この発明について具体的な実施形態を説明する。
この発明は、エチレン−酢酸ビニル及びウレタンの混合樹脂からなる有機バインダーと、膨張済みのバーミキュライトとからなるバーミキュライト含有組成物である。 Hereinafter, specific embodiments of the present invention will be described.
The present invention is a vermiculite-containing composition comprising an organic binder composed of a mixed resin of ethylene-vinyl acetate and urethane and expanded vermiculite.

上記バーミキュライトとは、ヒル石を加熱して膨張させたものであり、多孔質で嵩比重が０．２０ｋｇ／ｌ以下のものである。主な成分はＳｉＯ２、ＭｇＯ、Ａｌ２Ｏ３、Ｆｅ２Ｏ３などからなる。粒子の大きさは０．１〜１０ｍｍ程度のものが一般的である。具体的な製品としては、例えば、ヒルイシ化学工業（株）製：ヒルコンが挙げられる。 The vermiculite is obtained by heating and expanding lee stone, and is porous and has a bulk specific gravity of 0.20 kg / l or less. Main components are composed of SiO 2 , MgO, Al 2 O 3 , Fe 2 O 3 and the like. The particle size is generally about 0.1 to 10 mm. Specific products include, for example, Hirukon manufactured by Hiruishi Chemical Co., Ltd.

この発明で用いるバーミキュライトとしては、嵩比重が０．０７ｋｇ／ｌ以上０．１１ｋｇ／ｌ以下であり、メッシュ幅が１．２ｍｍである１４メッシュの篩を通る粒子の重量百分率が、１％以上９９％以下であるものが好ましい。小さすぎると嵩比重が大きくなって密になり、断熱吸音効果が不十分になるおそれがあり、大きすぎると建材として表面が粗くなりすぎてしまうおそれがある。   The vermiculite used in the present invention has a bulk specific gravity of 0.07 kg / l or more and 0.11 kg / l or less, and the weight percentage of particles passing through a 14-mesh sieve having a mesh width of 1.2 mm is 1% or more and 99. % Or less is preferred. If it is too small, the bulk specific gravity becomes large and dense, and the heat insulating sound absorbing effect may be insufficient. If it is too large, the surface of the building material may become too rough.

上記有機バインダーを構成する上記エチレン−酢酸ビニルのエチレンと酢酸ビニルとのモル比は１：９９〜９９：１であることが好ましい。この範囲から外れると、共重合体としての性質が発揮されず、ポリエチレン、又はポリ酢酸ビニルとしての性質しか発揮できなくなってしまう。   The ethylene / vinyl acetate constituting the organic binder preferably has a molar ratio of ethylene to vinyl acetate of 1:99 to 99: 1. If it is out of this range, the properties as a copolymer are not exhibited, and only properties as polyethylene or polyvinyl acetate can be exhibited.

また、上記有機バインダーを構成する混合樹脂は、エチレン−酢酸ビニルとウレタンとを個々に重合してから混合したものでもよいし、一連の高分子として重合させたものでもよいが、エチレン−酢酸ビニル共重合体を得た後、その高分子にウレタン重合により分子鎖を延ばして一体のものとしたものが、親水性及び疎水性の両立の面から好ましい。   The mixed resin constituting the organic binder may be one obtained by individually polymerizing and mixing ethylene-vinyl acetate and urethane, or may be polymerized as a series of polymers. After obtaining the copolymer, it is preferable to extend the molecular chain to the polymer by urethane polymerization so as to be integrated, from the viewpoint of both hydrophilicity and hydrophobicity.

上記有機バインダーは、有機溶剤と水とを溶媒として、エマルジョンであると望ましい。この場合、有機溶剤の含有量は２〜３重量％程度であると好ましい。塗工後に乾燥させるものであるため、有機溶剤が少ない方が、建材から発生する有機物が少なくて済む。   The organic binder is desirably an emulsion using an organic solvent and water as solvents. In this case, the content of the organic solvent is preferably about 2 to 3% by weight. Since the coating is dried after coating, the amount of organic matter generated from the building material is smaller when the amount of the organic solvent is smaller.

上記有機バインダーと上記バーミキュライトとの配合比は、５００：１００〜３０：１００であると好ましい。５００：１００よりも上記有機バインダーが多いと、バーミキュライトの粒径を小さなものとしても、バーミキュライトが少なすぎて樹脂の成分が多くなるために、塗工しても樹脂層としての性質が強くでてしまい、断熱吸音効果が十分に発揮されなくなってしまう。一方で、３０：１００よりも上記バーミキュライトが多いと、粒径が比較的大きなバーミキュライトを用いたとしても、塗工後の組成物を上記有機バインダーで保持しきれずに剥落を起こしやすくなってしまう。   The compounding ratio of the organic binder and the vermiculite is preferably 500: 100 to 30: 100. If the amount of the organic binder is larger than 500: 100, the vermiculite particle size is too small, and the amount of the vermiculite is too small to increase the resin component. As a result, the adiabatic sound absorbing effect is not sufficiently exhibited. On the other hand, when the amount of vermiculite is larger than 30: 100, even if vermiculite having a relatively large particle size is used, the composition after coating cannot be held by the organic binder and is likely to peel off.

さらに、上記バーミキュライトの塗工厚みは２〜６ｍｍ程度であるのが好ましい。３ｍｍ以下では薄すぎて断熱効果及び吸音効果が十分に発揮されない。   Furthermore, the coating thickness of the vermiculite is preferably about 2 to 6 mm. If it is 3 mm or less, it is too thin and the heat insulation effect and the sound absorption effect are not sufficiently exhibited.

その中で、塗工厚みを４〜６ｍｍ程度に厚くする場合には比較的粒径の大きいバーミキュライトを用いるのが好適である。また、上記有機バインダーの量を重量混合比で、（有機バインダー：バーミキュライト）＝８０：１００よりも少なくする場合も、比較的粒径の大きいバーミキュライトを用いるとよい。このような比較的粒径の大きいバーミキュライトとは、カサ比重が０．０７〜０．０９ｋｇ／ｌで、８メッシュ（粗さ２．５ｍｍ）の篩の透過率が２０〜８０重量％であるものがよい。   Among them, when the coating thickness is increased to about 4 to 6 mm, it is preferable to use vermiculite having a relatively large particle size. Also, when the amount of the organic binder is less than (organic binder: vermiculite) = 80: 100 by weight mixing ratio, it is preferable to use vermiculite having a relatively large particle size. Such vermiculite having a relatively large particle size has a specific gravity of 0.07 to 0.09 kg / l and a transmittance of 8 mesh (roughness 2.5 mm) sieve is 20 to 80% by weight. Is good.

一方で、塗工厚みを２〜４ｍｍ程度に薄くする場合には、比較的粒径の小さなバーミキュライトを用いるのが好適である。また、上記有機バインダーの量を重量混合比で、（有機バインダー：バーミキュライト）＝８０：１００よりも多くする場合も、比較的粒径の小さいバーミキュライトを用いるとよい。このような比較的粒径の小さいバーミキュライトとは、カサ比重が０．０９〜０．１１ｋｇ／ｌで、２８メッシュ（粗さ０．６ｍｍ）の篩の透過率が２０〜８０重量％であるものがよい。   On the other hand, when the coating thickness is reduced to about 2 to 4 mm, it is preferable to use vermiculite having a relatively small particle size. In addition, when the amount of the organic binder is larger than (organic binder: vermiculite) = 80: 100 by weight mixing ratio, vermiculite having a relatively small particle diameter may be used. Such a vermiculite having a relatively small particle size has a specific gravity of 0.09 to 0.11 kg / l and a transmittance of 20 to 80% by weight of a 28 mesh (roughness 0.6 mm) sieve. Is good.

ただし、塗工厚みが３〜５ｍｍ程度であるのが使用量及び断熱吸音効果のバランス上好ましい。この場合、重量混合比で（有機バインダー：バーミキュライト）＝１２０：１００〜５０：１００程度であると好ましい。また、用いるバーミキュライトはカサ比重が０．０８ｋｇ／ｌ以上０．１０ｋｇ／ｌ以下であり、メッシュ幅が１．２ｍｍである１４メッシュの篩を通る粒子の重量百分率が、１０％以上５０％以下であると、後述する噴射による塗工でも好適な密度での塗工ができる。   However, the coating thickness is preferably about 3 to 5 mm in view of the balance between the amount used and the heat insulating sound absorbing effect. In this case, the weight mixing ratio (organic binder: vermiculite) is preferably about 120: 100 to 50: 100. Further, the vermiculite used has a specific gravity of 0.08 kg / l or more and 0.10 kg / l or less, and the weight percentage of particles passing through a 14-mesh screen having a mesh width of 1.2 mm is 10% or more and 50% or less. If it exists, the coating by suitable density | concentration can be performed also by the coating by the injection mentioned later.

この発明にかかるバーミキュライト含有組成物は、建材の表面に塗工することで、断熱、吸音、結露防止効果を発揮する多機能板材を得ることができる。塗工する対象となる建材としては、木材板、石膏ボード、コンクリート壁面、アルミ板、スチール板など、特に限定されることなく用いることができる。上記有機バインダーが疎水性と親水性との両方の性質を有するため、広範な対象に対して用いることができる。   The vermiculite containing composition concerning this invention can obtain the multifunctional board | plate material which exhibits a heat insulation, a sound absorption, and a dew condensation prevention effect by coating on the surface of building materials. The building material to be coated can be used without particular limitation, such as wood board, gypsum board, concrete wall surface, aluminum board, steel board. Since the organic binder has both hydrophobic and hydrophilic properties, it can be used for a wide range of objects.

この発明にかかるバーミキュライト含有組成物を塗工する方法としては、特に限定されるものではなく、孔径が２〜６ｍｍ程度のエアガンを用いて噴射する方法や、刷毛による塗布、組成物中への浸漬など、いずれの方法も用いることができる。ただし、建材用途であるため、現場では噴射が好適な手段であり、予め組成物を塗工した建材を工場で製造する場合には噴射又は浸漬が有効となる。   The method for applying the vermiculite-containing composition according to the present invention is not particularly limited, and is a method of spraying with an air gun having a pore diameter of about 2 to 6 mm, coating with a brush, immersion in the composition. Any method can be used. However, since it is a building material application, spraying is a suitable means at the site, and spraying or dipping is effective when manufacturing a building material pre-coated with a composition in a factory.

この発明にかかるバーミキュライト含有組成物を塗工する際に、上記有機バインダーである樹脂の塗工量が１７０ｇ／ｍ２以下であると、不燃材としても利用可能である。従来の酢酸ビニルのみの重合体をバインダーとすると接着力が足りず、不燃材として利用可能な塗工量では十分にバーミキュライトを保持できないものとなっていたが、上記のような混合樹脂を用いることで現実的な利用が可能となる接着力を発揮する。 When the vermiculite-containing composition according to the present invention is applied, if the coating amount of the resin as the organic binder is 170 g / m 2 or less, it can be used as a nonflammable material. When a conventional polymer containing only vinyl acetate is used as a binder, the adhesive strength is insufficient, and the amount of coating that can be used as a non-combustible material cannot sufficiently hold vermiculite. It demonstrates adhesive strength that enables realistic use.

この発明にかかるバーミキュライト含有組成物を、上記建材の表面に塗工し、水分や有機溶媒を蒸発させて固めることで、断熱吸音性建材とすることができる。
具体例として、アルミ板上にエアガンでバーミキュライト含有組成物を噴射して得られた断熱吸音性建材の斜視図写真を図１に、表面の写真を図２に、断面写真を図３に示す。 By applying the vermiculite-containing composition according to the present invention to the surface of the building material and evaporating and solidifying the moisture and the organic solvent, the heat insulating and sound-absorbing building material can be obtained.
As a specific example, FIG. 1 shows a perspective view photograph of a heat-insulating sound-absorbing building material obtained by injecting a vermiculite-containing composition with an air gun onto an aluminum plate, FIG. 2 shows a photograph of the surface, and FIG.

以下、この発明を実施した例を具体的に示す。まず、使用した材料について説明する。
・バーミキュライト（ヒルイシ化学工業（株）製：Ｓ−２、カサ比重０．０８〜０．１０ｋｇ／ｌ）（４，８，１４，２８，４８，１００メッシュの各篩に留まる重量百分率が下記表１の通り）
・有機バインダー（コニシ（株）製：ボンド ＣＶＣ３３Ｎ、ビニル共重合樹脂系エマルジョン型接着剤）（組成……エチレン−酢酸ビニル：２０〜３０重量％、ウレタン：１５〜２５重量％、有機溶媒：２〜３％、水：４０〜６０％）
・ポリ酢酸ビニル（昭和高分子（株）製） Hereinafter, the example which implemented this invention is shown concretely. First, the materials used will be described.
Vermiculite (manufactured by Hiruishi Chemical Industry Co., Ltd .: S-2, Casa specific gravity 0.08 to 0.10 kg / l) (weight percentage remaining on each sieve of 4, 8, 14, 28, 48, 100 mesh is shown in the table below. 1 street)
Organic binder (manufactured by Konishi Co., Ltd .: Bond CVC33N, vinyl copolymer resin emulsion adhesive) (composition: ethylene-vinyl acetate: 20-30% by weight, urethane: 15-25% by weight, organic solvent: 2 ~ 3%, water: 40-60%)
・ Polyvinyl acetate (made by Showa Polymer Co., Ltd.)

（実施例１）
バーミキュライトを１００重量部、有機バインダーを８０重量部とを混合し、バーミキュライト含有組成物を作製した。このバーミキュライト含有組成物を、ホッパーを備えた孔径３ｍｍのエアガンを用いて１０ｃｍ×１０ｃｍ×２ｍｍのアルミ板に吹きつけ、厚さ５ｍｍのバーミキュライト層を形成した断熱吸音性材料を製造した。 Example 1
A vermiculite-containing composition was prepared by mixing 100 parts by weight of vermiculite and 80 parts by weight of an organic binder. This vermiculite-containing composition was sprayed onto an aluminum plate of 10 cm × 10 cm × 2 mm using an air gun with a hole diameter of 3 mm equipped with a hopper to produce a heat insulating sound-absorbing material in which a 5 mm thick vermiculite layer was formed.

（比較例１）
上記実施例１において、有機バインダーの変わりにポリ酢酸ビニルを用いて同様にバーミキュライト含有組成物及び断熱吸音性材料を製造した。 (Comparative Example 1)
In the said Example 1, the vermiculite containing composition and the heat insulation sound-absorbing material were similarly manufactured using the polyvinyl acetate instead of the organic binder.

＜恒温恒湿試験＞
８５±２℃、９０％ＲＨの環境に、実施例１及び比較例１の断熱吸音性材料を置き、１日後と３日後に、目視による接着状況の観察と質量変化率の測定を行った。その結果を表２に示す。実施例１では１日後も３日後も黄変を認めるが接着剥がれは認められなかった。また、比較例１では外観上の変化や接着剥がれはいずれも見かけられなかった。また、質量変化率は誤差の範囲に留まった。 <Constant temperature and humidity test>
The heat-absorbing and sound-absorbing materials of Example 1 and Comparative Example 1 were placed in an environment of 85 ± 2 ° C. and 90% RH, and after 1 day and 3 days, the adhesion state was visually observed and the mass change rate was measured. The results are shown in Table 2. In Example 1, yellowing was observed after 1 day and after 3 days, but no adhesion peeling was observed. In Comparative Example 1, neither change in appearance nor peeling of the adhesive was observed. Moreover, the mass change rate remained within the range of error.

＜促進老化試験＞
ＪＩＳ Ｋ ３２５７中「促進劣化試験Ａ−２法」に基づいて試験を行い、３０分間整地後、外観の観察及び質量変化率の変化を測定した。その結果を表３に示す。また、質量変化率は誤差の範囲に留まった。 <Accelerated aging test>
A test was conducted based on “Accelerated degradation test A-2 method” in JIS K 3257, and after grading for 30 minutes, the appearance was observed and the change in mass change rate was measured. The results are shown in Table 3. Moreover, the mass change rate remained within the range of error.

＜恒温恒湿処理後の浸漬試験＞
ＪＩＳ Ｋ ３２５８中に準拠し、上記恒温恒湿試験を３日間行った後の断熱吸音性材料について、イオン交換水（７０±２℃）で所定の時間（１日、６日、９日、１２日）に亘って浸漬試験を行い、１０分間静置した後、目視により外観観察をし、直接接触して強度の変化を確認した。その結果を表４に示す。 <Immersion test after constant temperature and humidity treatment>
In accordance with JIS K 3258, the heat-insulating and sound-absorbing material after the constant temperature and humidity test for 3 days was performed in ion exchange water (70 ± 2 ° C.) for a predetermined time (1 day, 6 days, 9 days, 12 days). After a dipping test for 10 days, the sample was allowed to stand for 10 minutes, and then visually observed for appearance and contacted directly to confirm a change in strength. The results are shown in Table 4.

＜吸音試験＞
実施例１及び比較例１のそれぞれの断熱吸音性材料を用いて、１ｍ×１ｍ×１ｍの箱を作製した。なお、塗工したバーミキュライト及び有機バインダーの層は箱の内面側を向いており、接合部分は端部の上記層を斜め４５度強にカットして、上記層同士が密着するようにした上で、外側のアルミ板を市販の粘着テープで接合した。この箱の中に市販の目覚まし時計を１０分後に鳴るようにセットして密封したところ、実施例１及び比較例１のいずれでも箱の外１メートルの箇所では音が聞こえなかった。 <Sound absorption test>
Using the respective heat insulating and sound absorbing materials of Example 1 and Comparative Example 1, a box of 1 m × 1 m × 1 m was produced. In addition, the layer of the coated vermiculite and the organic binder faces the inner surface side of the box, and the joint portion is cut at an angle of 45 degrees or more so that the layers adhere to each other. The outer aluminum plate was joined with a commercially available adhesive tape. When a commercially available alarm clock was set in this box to ring after 10 minutes and sealed, no sound was heard at a location 1 meter outside the box in either Example 1 or Comparative Example 1.

＜断熱試験＞
上記吸音試験で用いた箱の一つの角に、電源ケーブルと温度測定ケーブルが通るだけの隙間を設けて、箱の中に市販の６００Ｗ電気ヒーターをセットするとともに、底部の別の角に温度センサを取り付け、外部から内部の温度が計測できるようにした。電気ヒーターを１時間加熱した後、内部の温度センサの温度を確認したところ、８０℃となったが、外表面に取り付けた同じ温度センサの温度は９５℃となった。また、実施例１の材料はバーミキュライトの層に異変は無かったが、比較例１の材料は一部の形状がゆがんでいた。 <Insulation test>
Provide a gap through which the power cable and temperature measurement cable pass in one corner of the box used in the sound absorption test, set a commercially available 600W electric heater in the box, and a temperature sensor in another corner at the bottom. The internal temperature can be measured from the outside. After heating the electric heater for 1 hour, the temperature of the internal temperature sensor was confirmed to be 80 ° C., but the temperature of the same temperature sensor attached to the outer surface was 95 ° C. The material of Example 1 was not changed in the vermiculite layer, but the material of Comparative Example 1 was distorted in part.

Claims (7)

エチレン−酢酸ビニル及びウレタンの混合樹脂からなる有機バインダーと、膨張済みのバーミキュライトとからなるバーミキュライト含有組成物。   A vermiculite-containing composition comprising an organic binder composed of a mixed resin of ethylene-vinyl acetate and urethane and expanded vermiculite. 上記バーミキュライトは、嵩比重が０．０７ｋｇ／ｌ以上０．１１ｋｇ／ｌ以下であり、メッシュ幅が１．２ｍｍである１４メッシュの篩を通る粒子の重量百分率が、１％以上９９％以下であるバーミキュライト含有組成物。   The vermiculite has a bulk specific gravity of 0.07 kg / l or more and 0.11 kg / l or less, and the weight percentage of particles passing through a 14-mesh sieve having a mesh width of 1.2 mm is 1% or more and 99% or less. Vermiculite-containing composition. 上記バーミキュライトは、嵩比重が０．０８ｋｇ／ｌ以上０．１０ｋｇ／ｌ以下であり、メッシュ幅が１．２ｍｍである１４メッシュの篩を通る粒子の重量百分率が、１０％以上５０％以下であるバーミキュライト含有組成物。   The vermiculite has a bulk specific gravity of 0.08 kg / l or more and 0.10 kg / l or less, and a weight percentage of particles passing through a 14-mesh sieve having a mesh width of 1.2 mm is 10% or more and 50% or less. Vermiculite-containing composition. 上記有機バインダーとバーミキュライトとの重量混合比が５００：１００〜３０：１００である請求項１乃至３のいずれか１項に記載のバーミキュライト含有組成物。   The vermiculite-containing composition according to any one of claims 1 to 3, wherein a weight mixing ratio of the organic binder and vermiculite is 500: 100 to 30: 100. 性状がエマルジョン状である請求項１乃至４のいずれか１項に記載のバーミキュライト含有組成物。   The vermiculite-containing composition according to any one of claims 1 to 4, wherein the composition is an emulsion. 上記有機バインダーは、エチレン−酢酸ビニル重合体を２０重量％以上３０重量％以下有し、ウレタンを１５重量％以上２５重量％以下有し、残余が水と有機溶媒からなる請求項５項に記載のバーミキュライト含有組成物。   The said organic binder has 20 to 30 weight% of ethylene-vinyl acetate polymers, has 15 to 25 weight% of urethane, and the remainder consists of water and an organic solvent. Vermiculite-containing composition. 請求項１乃至６のいずれか１項に記載のバーミキュライト含有組成物を建材表面に塗工した、断熱吸音性建材。   A heat-insulating sound-absorbing building material obtained by coating the vermiculite-containing composition according to any one of claims 1 to 6 on a building material surface.
JP2009015382A 2009-01-27 2009-01-27 Vermiculite-containing composition Pending JP2010174060A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009015382A JP2010174060A (en) 2009-01-27 2009-01-27 Vermiculite-containing composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009015382A JP2010174060A (en) 2009-01-27 2009-01-27 Vermiculite-containing composition

Publications (1)

Publication Number Publication Date
JP2010174060A true JP2010174060A (en) 2010-08-12

Family

ID=42705345

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009015382A Pending JP2010174060A (en) 2009-01-27 2009-01-27 Vermiculite-containing composition

Country Status (1)

Country Link
JP (1) JP2010174060A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012111809A (en) * 2010-11-22 2012-06-14 Masanaga Sakaguchi Dew condensation prevention agent

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012111809A (en) * 2010-11-22 2012-06-14 Masanaga Sakaguchi Dew condensation prevention agent

Similar Documents

Publication Publication Date Title
CA2681528C (en) Utility materials incorporating a microparticle matrix
US12030815B2 (en) Mortar composition for acoustic damping and fire protection
HU220242B (en) Semi-finished surface-cladding component
WO2016093369A1 (en) Structure body, sound absorbing material, sound insulating wall material, and manufacturing method of structure body
CA3112487A1 (en) Coated insulation material substrate
JP2010174060A (en) Vermiculite-containing composition
KR101703881B1 (en) Manufacturing Method of Insulation Panel with excellent Solidity and Water Resistance and Insulation Panel made thereby
JP2000143328A (en) Heat insulating coating composition
JP4604245B2 (en) Surface finishing structure of a building and method for forming a surface finishing layer
WO2019080978A1 (en) Insulating composite for insulation of buildings
JP2005193621A (en) Light blocking and heat insulating material sheet and its manufacturing method
JP3849981B2 (en) Building spray
KR100850580B1 (en) Adhesion composition mixed with inorganic material having eco-friendly
US20090306250A1 (en) Construction material and method of preparation
JP2005120646A (en) Composite refractory building material
KR102600579B1 (en) Eco-friendly adhesive composition for interior material and method for manufacturing the same
JP2003105271A (en) Fireproof and mothproof inorganic adhesive composition
KR200347490Y1 (en) A heat insulating plate for preventing dew condensation
EP3625188B1 (en) Dry mortar for an external wall insulation system
JP2003155786A (en) Moisture absorbing and discharging fire-protecting building material
JP2003306981A (en) Building material
JP2007191970A (en) Coating material for gypsum board, and interior finishing method using the same
JP2004125056A (en) Sound insulation piping
EP3701100A1 (en) Insulating composite for insulation of buildings
JPH01219047A (en) Lightweight aggregate for plastering