JP2622916B2 - Asbestos scattering prevention treatment method - Google Patents
Asbestos scattering prevention treatment methodInfo
- Publication number
- JP2622916B2 JP2622916B2 JP4222015A JP22201592A JP2622916B2 JP 2622916 B2 JP2622916 B2 JP 2622916B2 JP 4222015 A JP4222015 A JP 4222015A JP 22201592 A JP22201592 A JP 22201592A JP 2622916 B2 JP2622916 B2 JP 2622916B2
- Authority
- JP
- Japan
- Prior art keywords
- asbestos
- weight
- treatment
- acrylic resin
- flame retardant
- 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.)
- Expired - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】本発明は、石綿の飛散防止処理方
法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for preventing asbestos from scattering.
【０００２】[0002]
【従来の技術】周知のように、石綿は、引張り強さが
極めて大きい。表面積が大きく、セメントなどとの親
和性に優れている。燃えないで高温に耐える。酸や
アルカリなどの薬品に侵されにくい。耐候性に優れて
いる。柔軟で、かつ摩耗に耐えるなどの優れた性質が
ある。また、石綿は、天然に産するもので、安価である
ことから、建築材料などに広範囲に使用されてきた。2. Description of the Related Art As is known, asbestos has an extremely high tensile strength. Has a large surface area and excellent affinity with cement and the like. Withstand high temperatures without burning. Resistant to chemicals such as acids and alkalis. Excellent weather resistance. It has excellent properties such as being flexible and resistant to wear. In addition, asbestos is naturally produced and inexpensive, and thus has been widely used in building materials and the like.
【０００３】しかし、大気中に石綿繊維が飛散すると、
これが人体に著しく有害であることが指摘され、大きな
社会問題となっている。このため、石綿を含む建築材料
（以下、石綿含有物という）の経済的劣化や破損あるい
は解体などにより、石綿繊維が大気中に飛散するのを防
止する対策が必要となっている。However, when asbestos fibers scatter in the atmosphere,
It has been pointed out that this is extremely harmful to the human body, and has become a major social problem. For this reason, it is necessary to take measures to prevent asbestos fibers from scattering into the air due to economic deterioration, breakage, or demolition of building materials containing asbestos (hereinafter referred to as asbestos-containing materials).
【０００４】従来、石綿の飛散防止処理法として、石綿
含有物の表面に乾燥後に硬化して被膜を形成する処理剤
をコーティングし石綿を封じ込める方法や、石綿含有物
の内部に処理剤を浸透させて硬化させる方法などが知ら
れている。Conventionally, asbestos scattering prevention methods include a method of coating the surface of an asbestos-containing material with a treatment agent that cures after drying to form a film and enclosing the asbestos, or a method of penetrating the inside of the asbestos-containing material with the treatment agent. There is known a method of curing by heating.
【０００５】[0005]
【発明が解決しようとする課題】ところで、このような
石綿の飛散防止に使用する処理剤として、種々のものが
提案されているが、これらは一般に多量の合成樹脂を含
むものである。また、特公昭６３−５５５４６号公報に
開示されているアスベスト公害排除組成物には難燃剤と
して塩素化パラフィンが含まれている。このため、上述
したような従来の石綿の処理剤は、火災時に多量の煙や
有毒ガスを発生し、建築基準法の内装制限に関する建築
物に使用することができない。つまり、従来の石綿処理
剤を使用した場合、建設省告示第１２３１号の規定によ
る表面試験において、準不燃材としての基準を満たすこ
とができない。また、耐火被覆材などのように石綿含有
物の厚さが厚い場合、表面に被膜を形成する処理剤単独
では被膜を形成しにくい場合がある。一方、石綿含有物
の内部に浸透させる処理剤単独では表面に充分な厚さの
被膜が形成されない場合もあり、耐摩耗性等を考慮する
と、封じ込め効果は必ずしも充分なものとはいえない。Various treatment agents have been proposed for use in preventing such asbestos from being scattered, but generally contain a large amount of synthetic resin. Further, the asbestos pollution elimination composition disclosed in JP-B-63-55546 contains chlorinated paraffin as a flame retardant. For this reason, the conventional asbestos treating agent as described above generates a large amount of smoke and toxic gas at the time of fire, and cannot be used for buildings related to interior restrictions under the Building Standards Law. That is, when the conventional asbestos treating agent is used, the standard as a quasi-noncombustible material cannot be satisfied in the surface test according to the notification of the Ministry of Construction No. 1231. In addition, when the thickness of the asbestos-containing material is large, such as a fire-resistant coating material, it may be difficult to form a film with a treating agent that forms a film on the surface alone. On the other hand, there is a case where a coating having a sufficient thickness is not formed on the surface by the treatment agent alone penetrating into the asbestos-containing material, and the containment effect is not necessarily sufficient in consideration of abrasion resistance and the like.
【０００６】本発明は、このような事情を考慮してなさ
れたもので、石綿含有物が火災時に多量の煙や有毒ガス
を発生することがなく、また、石綿の封じ込めに優れた
石綿飛散防止処理方法を提供することを目的とするもの
である。The present invention has been made in view of such circumstances, and asbestos-containing substances do not generate a large amount of smoke or toxic gas at the time of fire, and are excellent in asbestos containment. It is an object to provide a processing method.
【０００７】[0007]
【課題を解決するための手段】本発明の石綿飛散防止処
理方法は、石綿含有物が厚い場合にも石綿の封じ込め効
果を確実なものとすることができる処理方法であり、酢
酸ビニル−アクリル酸エステル共重合体、アクリル樹
脂、変性アクリル樹脂から選択された１種以上の合成樹
脂および水を主成分とする組成物を用いて、内部浸透処
理を行った後に表面固化処理を行う方法であり、本発明
の処理方法に使用する表面固化処理剤は、合成樹脂、無
機質難燃剤、無機質充填剤および水を主成分として含有
した組成物である。DISCLOSURE OF THE INVENTION The asbestos scattering prevention treatment method of the present invention is a treatment method capable of ensuring an asbestos containment effect even when the asbestos-containing material is thick, and comprises vinyl acetate-acrylic acid. An ester copolymer, an acrylic resin, a method of performing a surface solidification treatment after performing an internal permeation treatment using a composition mainly containing water and at least one synthetic resin selected from a modified acrylic resin, The surface solidifying agent used in the treatment method of the present invention is a composition containing a synthetic resin, an inorganic flame retardant, an inorganic filler and water as main components.
【０００８】上記の表面固化処理剤は、合成樹脂、無機
質難燃剤、無機質充填剤の含有量については合成樹脂５
〜２０重量％、無機質難燃剤２０〜６０重量％、無機質
充填剤５〜２０重量％とするのが好ましい。また、形成
される被膜の強度、耐候性などの面から、合成樹脂とし
てアクリル樹脂またはスチレン−アクリル酸エステル共
重合体を用いるのが好ましい。さらに、無機質難燃剤と
して水酸化アルミニウムと水酸化マグネシウムを併用す
ることにより防火性能が向上する。[0008] The above-mentioned surface solidifying agent is a synthetic resin, an inorganic flame retardant, and an inorganic filler.
-20% by weight, inorganic flame retardant 20-60% by weight, and inorganic filler 5-20% by weight. Further, it is preferable to use an acrylic resin or a styrene-acrylate copolymer as the synthetic resin from the viewpoints of strength, weather resistance, and the like of the formed film. Further, the combined use of aluminum hydroxide and magnesium hydroxide as the inorganic flame retardant improves the fire prevention performance.
【０００９】これらの金属水酸化物は、加熱されると脱
水分解し、その際の吸熱により温度の上昇を抑制する効
果を有しており、水酸化アルミニウムは、脱水温度が約
３００°Ｃ、水酸化マグネシウムは、脱水温度が約３８
０°Ｃであるため、両者を併用した場合には脱水分解が
２段階で進行し、合成樹脂が燃焼しはじめる３００〜４
００°Ｃの間の温度上昇の抑制効果が長続きし、より確
実なものとなる。この結果、防火性能が向上するものと
考えられる。These metal hydroxides are dehydrated and decomposed when heated, and have an effect of suppressing an increase in temperature due to heat absorption at that time. Aluminum hydroxide has a dehydration temperature of about 300 ° C. Magnesium hydroxide has a dehydration temperature of about 38
Since the temperature is 0 ° C., when both are used in combination, the dehydration / decomposition progresses in two stages, and the synthetic resin starts burning.
The effect of suppressing the temperature rise between 00 ° C. lasts for a long time, and becomes more reliable. As a result, it is considered that fire prevention performance is improved.
【００１０】[0010]
【作用】本発明の石綿飛散防止処理を施した石綿含有物
は、火災時に多量の煙や有毒ガスを発生することがな
い。また、内部浸透処理と表面固化処理を併用すること
により、石綿の封じ込め効果が確実なものとなる。The asbestos-containing material subjected to the asbestos scattering prevention treatment of the present invention does not generate a large amount of smoke or toxic gas at the time of fire. In addition, by using the internal permeation treatment and the surface solidification treatment together, the effect of containing asbestos can be ensured.
【００１１】[0011]
【実施例】以下に、本発明の実施例について説明する。Embodiments of the present invention will be described below.
【００１２】[0012]
【実施例】酢酸ビニル−アクリル酸エステル共重合樹脂
エマルジョン（固形分５３％）２１重量％、水７９重量
％からなる石綿飛散防止処理剤をエアーレススプレーガ
ンを用いて厚さ２５ｍｍの吹付けロックウールに塗布量
が０．５５ｋｇ／ｍ２となるように塗布して内部に浸透
させたうえ乾燥する。EXAMPLE A spray lock having a thickness of 25 mm was applied to an asbestos scattering preventive agent consisting of 21% by weight of a vinyl acetate-acrylate copolymer resin emulsion (solid content: 53%) and 79% by weight of water using an airless spray gun. The wool is applied so as to have a coating amount of 0.55 kg / m 2 , penetrated into the inside, and then dried.
【００１３】その後、スチレン−アクリル酸エステル共
重合樹脂エマルジョン（固形分４６％）２９．５重量
％、コロイダルシリカ（固形分３０％）４．３重量％、
エチレングリコール１．５重量％、メチルセルロース２
％溶液５．５重量％、炭酸カルシウム９．３重量％、水
酸化アルミニウム２９．５重量％、水酸化マグネシウム
５．６重量％、界面活性剤１．５重量％、ブチルカルビ
ノールアセテート０．８重量％、水１２．５重量％から
なる表面固化処理剤をエアーレススプレーガンを用い
て、塗布量が１．２ｋｇ／ｍ２となるように塗布し、乾
燥した。この吹付けロックウールについて、建設省告示
第１２３１号に規定されている試験方法により表面試験
を行い、得られた試料の防火性能を評価した結果、準不
燃材としての基準を満足した。Thereafter, 29.5% by weight of a styrene-acrylate copolymer resin emulsion (solid content: 46%), 4.3% by weight of colloidal silica (solid content: 30%),
1.5% by weight of ethylene glycol, methyl cellulose 2
% Solution 5.5% by weight, calcium carbonate 9.3% by weight, aluminum hydroxide 29.5% by weight, magnesium hydroxide 5.6% by weight, surfactant 1.5% by weight, butylcarbinol acetate 0.8 A surface solidifying agent composed of 12.5% by weight of water and 12.5% by weight of water was applied using an airless spray gun so that the applied amount was 1.2 kg / m 2, and dried. The sprayed rock wool was subjected to a surface test according to the test method specified in the Ministry of Construction Notification No. 1231, and the fireproof performance of the obtained sample was evaluated. As a result, the standard as a quasi-noncombustible material was satisfied.
【００１４】[0014]
【比較例】酢酸ビニル−アクリル酸エステル共重合樹脂
エマルジョン（固形分５３％）２１重量％、水７９重量
％からなる石綿飛散防止処理剤をエアーレススプレーガ
ンを用いて厚さ２５ｍｍの吹付けロックウールに塗布量
が０．５５ｋｇ／ｍ２となるように塗布して内部に浸透
させたうえ乾燥する。[Comparative Example] A spray lock having a thickness of 25 mm using an airless spray gun with an asbestos scattering prevention agent consisting of 21% by weight of a vinyl acetate-acrylate copolymer resin emulsion (solid content: 53%) and 79% by weight of water. The wool is applied so as to have a coating amount of 0.55 kg / m 2 , penetrated into the inside, and then dried.
【００１５】その後、酢酸ビニル−アクリル酸エステル
共重合樹脂エマルジョン（固形分５３％）４５重量％、
塩素化パラフィン９重量％、水酸化アルミニウム１７重
量％、炭酸カルシウム２１重量％、水８重量％からなる
表面固化処理剤をエアーレススプレーガンを用いて、塗
布量が１．２ｋｇ／ｍ２となるように塗布し、乾燥し
た。実施例と同様の方法により、得られた比較試料の防
火性能を評価した結果、難燃材としての基準は満足した
が、準不燃材としての基準は満足しなかった。Thereafter, 45% by weight of a vinyl acetate-acrylate copolymer resin emulsion (solid content: 53%),
Using an airless spray gun, a coating amount of 1.2 kg / m 2 of a surface solidifying agent composed of 9% by weight of chlorinated paraffin, 17% by weight of aluminum hydroxide, 21% by weight of calcium carbonate, and 8% by weight of water was used. And dried. The fire prevention performance of the obtained comparative sample was evaluated by the same method as in the example. As a result, the criterion as a flame retardant was satisfied, but the criterion as a quasi-incombustible material was not satisfied.
【００１６】[0016]
【発明の効果】以上説明したように、本発明の処理方法
によれば、石綿飛散防止処理を施された石綿含有物は、
火災時に多量の煙や有毒ガスを発生することがなく、建
設省告示第１２３１号の規定による表面試験において準
不燃材としての基準を満足する。また、本発明の処理方
法は、石綿含有物が厚い場合にも石綿の封じ込め効果を
確実なものとすることができ、建築基準法に定める内装
制限に関する建築物の石綿飛散防止処理として好適なも
のである。As described above, according to the treatment method of the present invention, the asbestos-containing material subjected to the asbestos scattering prevention treatment is
It does not generate a large amount of smoke or toxic gas at the time of fire, and satisfies the standard as a quasi-noncombustible material in a surface test according to the notification of the Ministry of Construction No. 1231. Further, the treatment method of the present invention can ensure the effect of containing asbestos even when the asbestos-containing material is thick, and is suitable as an asbestos scattering prevention treatment for buildings related to interior restrictions specified by the Building Standards Law. It is.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０９Ｄ 5/00 ＰＳＤ Ｃ０９Ｄ 5/00 ＰＳＤ 131/04 ＰＦＳ 131/04 ＰＦＳ 133/08 ＰＧＢ 133/08 ＰＧＢ ──────────────────────────────────────────────────の Continuation of the front page (51) Int.Cl. 6 Identification number Agency reference number FI Technical display location C09D 5/00 PSD C09D 5/00 PSD 131/04 PFS 131/04 PFS 133/08 PGB 133/08 PGB 133/08 PGB
Claims (2)
体、アクリル樹脂、変性アクリル樹脂から選択された１
種以上の合成樹脂および水を主成分とする組成物で、石
綿含有物の内部浸透処理を行い、次に主成分が合成樹
脂、無機質難燃剤、無機質充填剤および水からなる表面
固化処理剤で、石綿含有物の表面固化処理を行うことを
特徴とする石綿飛散防止処理方法。1. A resin selected from the group consisting of a vinyl acetate-acrylate copolymer, an acrylic resin and a modified acrylic resin.
With a composition containing at least one kind of synthetic resin and water as main components, perform internal penetration treatment of asbestos-containing material, and then use a surface solidifying agent whose main component consists of synthetic resin, inorganic flame retardant, inorganic filler and water. And a surface solidification treatment of asbestos-containing material.
体、アクリル樹脂、変性アクリル樹脂から選択された１
種以上の合成樹脂および水を主成分とする組成物で、石
綿含有物の内部浸透処理を行い、次に合成樹脂を５〜２
０重量％、無機質難燃剤を２０〜６０重量％、無機質充
填剤を５〜２０重量％含有し、合成樹脂がアクリル樹脂
またはスチレン−アクリル酸エステル共重合体であり、
無機質難燃剤として水酸化アルミニウムおよび水酸化マ
グネシウムが併用される表面固化処理剤で、表面固化処
理を行うことを特徴とする石綿飛散防止処理方法。2. One selected from a vinyl acetate-acrylate copolymer, an acrylic resin, and a modified acrylic resin.
A composition containing at least one or more kinds of synthetic resins and water is subjected to an internal permeation treatment of asbestos-containing material.
0% by weight, 20 to 60% by weight of an inorganic flame retardant and 5 to 20% by weight of an inorganic filler, and the synthetic resin is an acrylic resin or a styrene-acrylate copolymer.
An asbestos scattering prevention treatment method, comprising performing a surface solidification treatment with a surface solidification treatment agent using aluminum hydroxide and magnesium hydroxide in combination as an inorganic flame retardant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4222015A JP2622916B2 (en) | 1992-07-29 | 1992-07-29 | Asbestos scattering prevention treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4222015A JP2622916B2 (en) | 1992-07-29 | 1992-07-29 | Asbestos scattering prevention treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0649391A JPH0649391A (en) | 1994-02-22 |
| JP2622916B2 true JP2622916B2 (en) | 1997-06-25 |
Family
ID=16775773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4222015A Expired - Fee Related JP2622916B2 (en) | 1992-07-29 | 1992-07-29 | Asbestos scattering prevention treatment method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2622916B2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4938306B2 (en) * | 2005-12-28 | 2012-05-23 | 中央理化工業株式会社 | Emulsion composition for asbestos scattering prevention treatment and asbestos peeling method using the same |
| JP2007204702A (en) * | 2006-02-06 | 2007-08-16 | Toda Constr Co Ltd | Asbestos scattering inhibitor and method for inhibition of asbestos scattering by using the inhibitor |
| JP4950501B2 (en) * | 2006-02-07 | 2012-06-13 | 株式会社ナチュル | Asbestos solidification method |
| JP5173166B2 (en) * | 2006-08-14 | 2013-03-27 | スリーエム イノベイティブ プロパティズ カンパニー | Adhesive film peeling method |
| JP2010076977A (en) * | 2008-09-26 | 2010-04-08 | Sumitomo Osaka Cement Co Ltd | Method for detoxifying sprayed asbestos |
| JP5344281B2 (en) * | 2008-09-26 | 2013-11-20 | 住友大阪セメント株式会社 | How to contain sprayed asbestos |
| KR100981944B1 (en) * | 2010-03-31 | 2010-09-13 | 황선월 | Asbestos solidity stabilization solvent and method of processing asbestos solidity stabilization |
| JP2019199493A (en) * | 2018-05-14 | 2019-11-21 | ニチアス株式会社 | Dust splash prevention agent, and dust splash prevention method using the same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5912623B2 (en) * | 1974-03-09 | 1984-03-24 | 大日本塗料株式会社 | Composition for surface finishing of inorganic materials |
| JPS5744623B2 (en) * | 1974-03-15 | 1982-09-22 | ||
| JP2847121B2 (en) * | 1988-07-15 | 1999-01-13 | 協和産業株式会社 | Coating agent for asbestos construction layer |
-
1992
- 1992-07-29 JP JP4222015A patent/JP2622916B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0649391A (en) | 1994-02-22 |
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