JPS6262871A - Fire-proof coating material and electric wide or cable coated therewith - Google Patents
Fire-proof coating material and electric wide or cable coated therewithInfo
- Publication number
- JPS6262871A JPS6262871A JP60202964A JP20296485A JPS6262871A JP S6262871 A JPS6262871 A JP S6262871A JP 60202964 A JP60202964 A JP 60202964A JP 20296485 A JP20296485 A JP 20296485A JP S6262871 A JPS6262871 A JP S6262871A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- fire
- coating material
- self
- acrylic emulsion
- 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
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は、火災時において可燃性物体を燃焼から保護す
る防火塗料、並びにこの防火塗料よりなる塗膜を被覆し
た電線・ケーブルに関す゛るものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a fire-retardant paint that protects combustible objects from burning in the event of a fire, and electric wires and cables coated with a coating made of this fire-retardant paint. It is.
［従来の技術］
例えば、多数の電線・ケーブルが布設されている電気設
備において火災が発生した場合、電線・ケーブルの絶縁
材料が燃料となって延焼する危険性がある。[Prior Art] For example, if a fire breaks out in electrical equipment in which a large number of electric wires and cables are installed, there is a risk that the insulating material of the electric wires and cables will become fuel and the fire will spread.
このような事態を防止するため、を線・ケーブルの外周
に防火塗料を塗布することが一般に行われてきている。To prevent such a situation, it is common practice to apply fireproof paint to the outer periphery of wires and cables.
従来からの防火塗料として、水性エマルジョン樹脂に難
燃剤、無機充填剤および不燃性繊維類を加えたものがあ
る。Traditional fire protection coatings include water-based emulsion resins with flame retardants, inorganic fillers, and nonflammable fibers.
水性エマルジョン樹脂は、塗膜形成時の各種配合剤の結
合剤として機能し、塗膜に機械的強度、可撓性を与える
もので、通常酢酸ビニル−エチレンコポリマエマルジョ
ン、アクリル酸エステルコポリマエマルジョンが使用さ
れる。Aqueous emulsion resin functions as a binder for various compounding agents during coating film formation, and provides mechanical strength and flexibility to the coating film. Vinyl acetate-ethylene copolymer emulsion and acrylic acid ester copolymer emulsion are usually used. be done.
難燃剤、無機充填剤及び不燃性繊維は塗膜の耐火性を向
上させ、また燃焼時の塗膜の脱落を防止するものである
。Flame retardants, inorganic fillers, and noncombustible fibers improve the fire resistance of the coating and prevent the coating from falling off during combustion.
［発明が解決しようとする問題点コ
上記した防火塗料からなる塗膜は炎や空気を遮断し、燃
焼性の電線・ケーブル被覆材を保護するが、一般に非膨
張性であるため熱伝導を防止することができず、電線・
ケーブルの温度が上昇し十分な耐火性を発揮できないこ
とがある。[Problems to be solved by the invention: The coating film made of the above-mentioned fire-retardant paint blocks flames and air and protects flammable wire and cable covering materials, but it is generally non-expandable and prevents heat conduction. It is not possible to
The temperature of the cable may rise and it may not be able to exhibit sufficient fire resistance.
塗膜が火災時の加熱によって膨張するとその断熱性によ
り電線・ケーブル温度の上昇を抑制し、大幅な耐火性の
改善が望める。When the coating expands due to heat during a fire, its insulating properties suppress the rise in the temperature of wires and cables, and can be expected to significantly improve fire resistance.
本発明は、耐火断熱性を大幅に向上させることができる
新規な防火塗料、並びにこれを被覆したｉｉｍ・ケーブ
ルの提供を目的とするものである。The object of the present invention is to provide a new fireproofing coating that can significantly improve fireproofing and heat insulation properties, and an IIM cable coated with the same.
［問題点を解決するための手段］
本発明の防火塗料は、組成の主体部が、１０〜２５重量
％の自己架橋アクリルエマルジョン樹脂固形分、３０〜
５０瓜量％の無機充填剤、１−１０ｆｉ量％の難燃性可
塑剤、０．１−４！を量％の膨張性黒鉛からなることを
特徴とするもめである。[Means for Solving the Problems] The fire protection paint of the present invention has a composition in which the main component is 10 to 25% by weight of self-crosslinking acrylic emulsion resin solids, and 30 to 25% by weight of solid content of self-crosslinking acrylic emulsion resin.
50 melon amount % inorganic filler, 1-10 fi amount % flame retardant plasticizer, 0.1-4! % of expandable graphite.
また、本発明の電線・ケーブルは、乾燥後の組成の主体
部が、１５〜３７．５重量％の自己架橋アクリルエマル
ジョン樹脂、／１６〜７５瓜量％の無機充填剤、１．５
〜１５瓜量％の難燃性可塑剤、０．１５〜６重量％の膨
張性黒鉛からなる防火塗膜が被覆されていることを特徴
とするものである。In addition, the electric wire/cable of the present invention has a composition after drying in which the main part is 15 to 37.5% by weight of self-crosslinking acrylic emulsion resin, /16 to 75% by weight of inorganic filler, and 1.5% by weight of inorganic filler.
It is characterized by being coated with a fireproof coating consisting of ~15% by weight of a flame retardant plasticizer and 0.15~6% by weight of expandable graphite.
本発明において、自己架橋アクリルエマルジョン樹脂は
、２−エチルへキシルアクリレート、ブチルアクリレー
ト、メチルメタアクリレートを主体とし、アクリル酸、
アクリロニトリル、スチレン等を共重合させ、さらにメ
チロールアクリルアミド、メタクリル酸グリシジル、ア
リルアミノジクロルトリアジン、モノクロル酢酸ビニル
のような架橋基を導入したものである。In the present invention, the self-crosslinking acrylic emulsion resin mainly contains 2-ethylhexyl acrylate, butyl acrylate, and methyl methacrylate, and contains acrylic acid,
It is made by copolymerizing acrylonitrile, styrene, etc., and further introducing crosslinking groups such as methylolacrylamide, glycidyl methacrylate, allylaminodichlorotriazine, and monochlorovinyl acetate.
自己架橋アクリルエマルジョン樹脂は、塗膜の結合剤で
あるが、可燃物であるため最小限の使用が好ましく、樹
脂固形分として１０〜２５重量％（乾燥後の塗膜では１
５〜３７．５重量％）の範囲とすべきである。１０重量
％未満では結合剤としての機能が低下して可撓性に乏し
くなり、２５重量％を越えると難燃性が低下する。Self-crosslinking acrylic emulsion resin is a binder for the coating film, but since it is flammable, it is preferable to use it at a minimum, and the resin solid content is 10 to 25% by weight (10 to 25% by weight in the dried coating film).
5-37.5% by weight). If it is less than 10% by weight, the function as a binder will be reduced and flexibility will be poor, and if it exceeds 25% by weight, flame retardancy will be reduced.
自己架橋アクリルエマルジョン樹脂は、通常の熱可塑性
樹脂と異なって高温時の強度が優れているため、加熱に
よる塗膜の膨張時に亀裂を発生することがなく、無機充
填剤および膨張性黒鉛を加えることによって高度の難燃
性を付与できる。Unlike ordinary thermoplastic resins, self-crosslinking acrylic emulsion resins have excellent strength at high temperatures, so they do not crack when the coating expands due to heating, and they do not require the addition of inorganic fillers and expandable graphite. can provide a high degree of flame retardancy.
無機充填剤としては、炭酸カルシウム、酸化アルミニウ
ム、珪酸マグネシウム、シリカ、水和アルミナ、（ＪＭ
亜鉛、クレー、珪酸カルシウム等があげられる。この場
合水和アルミナが最も難燃性付与に効果的であり、無機
粉末の５０％以上を水ｆロアルミナとするのが好ましい
。Inorganic fillers include calcium carbonate, aluminum oxide, magnesium silicate, silica, hydrated alumina, (JM
Examples include zinc, clay, and calcium silicate. In this case, hydrated alumina is most effective in imparting flame retardancy, and it is preferable that 50% or more of the inorganic powder be hydrated alumina.
無機充填剤は防火塗料の骨格となるものであり、３０〜
５０瓜量％（乾燥後の塗膜では４５〜７５重量％）の範
囲にすべきである。Inorganic fillers form the backbone of fire-retardant paints, and range from 30 to
It should be in the range of 50% by weight (45-75% by weight in the dry coating).
３０重量％未満では耐火性が不十分であり、５０重量％
を越えると塗膜の可撓性が低下する。If it is less than 30% by weight, the fire resistance is insufficient, and if it is less than 50% by weight.
If it exceeds this, the flexibility of the coating film will decrease.
難燃性可塑剤としては、トリス−β−クロロエチルボス
フェート、トリス−ジクロロプロピルホスフェート、ハ
ロゲン化縮合りん酸エステル、液状ｊ―素化パラフィン
等がある。Examples of flame-retardant plasticizers include tris-β-chloroethyl bosphate, tris-dichloropropyl phosphate, halogenated condensed phosphoric acid esters, and liquid j-chlorinated paraffin.
難燃性可塑剤は、１−１０ｆｆｉ量％（乾燥後の塗膜で
は１．５〜１５ｆｆ［ｆｆｉ％）の範囲にすべきである
。The flame retardant plasticizer should be in the range of 1-10 ffi% (1.5-15 ffi% in the dry coating).
１重量％未溝では塗膜の可撓性が乏しくなり、１０重量
％を越えると塗膜の強度が低下する。If the amount is 1% by weight without grooves, the flexibility of the coating film will be poor, and if it exceeds 10% by weight, the strength of the coating will be reduced.
膨張性黒鉛は、黒鉛な謂＠酸、濃硝酸の混酸や塩宏酸カ
リウム、過マンガン酸カリウム等の酸化剤で酸化したも
ので、不純物が少なく、また中和処理したものが望まし
い。Expandable graphite is one that has been oxidized with an oxidizing agent such as a so-called graphite acid, a mixed acid of concentrated nitric acid, potassium chloride, or potassium permanganate, and has few impurities, and is preferably neutralized.
膨張性黒鉛の粒子は４８メツシユ以下の細かいものが好
ましい。The particles of expandable graphite are preferably fine particles of 48 meshes or less.
膨張性黒鉛の添加量は、０．１〜４重塁％（乾燥後の塗
膜では０．１５〜６市潰％）の範囲にずべきであり、０
．１重量％以下では塗膜の膨張性に乏しく、４重量％を
越えると燃焼時におけるすすの発生が多くなる。The amount of expandable graphite added should be within the range of 0.1 to 4% (0.15 to 6% in the dried coating film), and 0.
．． If it is less than 1% by weight, the coating film will have poor expansion properties, and if it exceeds 4% by weight, more soot will be generated during combustion.
本発明においては、必要に応じて上記成分以外に、各種
の顔料、分散剤、増粘剤、殺菌剤等を含有せしめてもよ
い。In the present invention, in addition to the above-mentioned components, various pigments, dispersants, thickeners, bactericides, etc. may be included as necessary.
かかる防火塗料は、可燃性物体の表面に塗布されるが、
中でも電線・ケーブルへの適用に好適である。Such fire-retardant paints are applied to the surface of combustible objects, but
Among these, it is suitable for application to electric wires and cables.
を線・ケーブルの具体的材質としては、ポリエチレン、
ポリ塩化ビニル、ポリクロロプレン、ブチルゴム等があ
げられるが、特にポリエチレンのような易燃性材質のと
きにＩＪａ著な効果が認められる。Specific materials for wires and cables include polyethylene,
Examples include polyvinyl chloride, polychloroprene, butyl rubber, etc., but IJa is particularly effective when used with easily flammable materials such as polyethylene.
［実施例コ
第１表の各例に示すような配合割合に従い、撹拌機を用
いて均一な塗料を作成した。[Example 1] A uniform paint was prepared using a stirrer according to the mixing ratios shown in each example in Table 1.
この塗料をケーブル（外径１２ｍｍ）のポリエチレンシ
ースの外周に乾燥後の塗膜厚さが１．Ｆ５ｍｒａとなる
ようにハケを用いて塗布した。This paint was applied to the outer circumference of the polyethylene sheath of the cable (outer diameter 12 mm) to a coating thickness of 1.5 mm after drying. It was applied using a brush to achieve F5mra.
￥ｉ燥後の塗膜の組成並びに各種特性についての評価結
果を第２表に示す。The composition of the coating film after drying and the evaluation results for various properties are shown in Table 2.
評価は次に基づいて行った。The evaluation was based on the following.
防火性：塗料を塗布したケーブルを水平に設置し、その
下部なガスバーナでＩＯ分間炎を当てたときの塗膜の脱
落の有無、延焼状況を観察した。Fire resistance: A cable coated with paint was placed horizontally and a flame was applied to it for 10 minutes using a gas burner at the bottom of the cable to observe whether the paint film had fallen off or not and how the fire had spread.
可撓性：試料ケーブルを、ケーブルの直径の５倍のマン
ドレルに沿って曲げたときの塗膜に生じる亀裂の有無を
観察した（曲げ試験）。Flexibility: The presence or absence of cracks in the coating film was observed when the sample cable was bent along a mandrel five times the diameter of the cable (bending test).
［発明の効果］
以上の説明から明らかな通り、本発明の防火塗料により
形成した防火塗膜は優れた耐火性及び可１ｑ性をイ■す
るものである。[Effects of the Invention] As is clear from the above description, the fireproof coating film formed using the fireproof paint of the present invention exhibits excellent fire resistance and fire resistance.
Claims (2)
クリルエマルジョン樹脂固形分、３０〜５０重量％の無
機充填剤、１〜１０重量％の難燃性可塑剤、０．１〜４
重量％の膨張性黒鉛からなることを特徴とする防火塗料
。(1) The main component of the composition is 10 to 25% by weight of self-crosslinking acrylic emulsion resin solid content, 30 to 50% by weight of inorganic filler, 1 to 10% by weight of flame retardant plasticizer, and 0.1 to 4% by weight of flame retardant plasticizer.
A fire-retardant paint characterized in that it consists of % by weight of expandable graphite.
の主体部が、１５〜３７．５重量％の自己架橋アクリル
エマルジョン樹脂、４５〜７５重量％の無機充填剤、１
．５〜１５重量％の難燃性可塑剤、０．１５〜６重量％
の膨張性黒鉛からなる防火塗膜が被覆されていることを
特徴とする電線・ケーブル。(2) The outer periphery of the coating of the electric wire/cable consists of 15 to 37.5% by weight of self-crosslinking acrylic emulsion resin, 45 to 75% by weight of inorganic filler, 1
．． 5-15% by weight flame retardant plasticizer, 0.15-6% by weight
An electric wire/cable characterized by being coated with a fireproof coating made of expandable graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60202964A JPS6262871A (en) | 1985-09-13 | 1985-09-13 | Fire-proof coating material and electric wide or cable coated therewith |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60202964A JPS6262871A (en) | 1985-09-13 | 1985-09-13 | Fire-proof coating material and electric wide or cable coated therewith |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6262871A true JPS6262871A (en) | 1987-03-19 |
Family
ID=16466078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60202964A Pending JPS6262871A (en) | 1985-09-13 | 1985-09-13 | Fire-proof coating material and electric wide or cable coated therewith |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6262871A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04155710A (en) * | 1990-10-19 | 1992-05-28 | Hitachi Cable Ltd | Fire retardant electric wire/cable |
| EP0729999A1 (en) * | 1995-03-03 | 1996-09-04 | Tosoh Corporation | Fire-retardant polymer composition |
| KR20020034134A (en) * | 2002-04-12 | 2002-05-08 | 조정용 | Noncombustible and thermal expansional tape |
| WO2004033585A1 (en) * | 2002-10-08 | 2004-04-22 | Suminoe Textile Co., Ltd. | Flame-retardant and method for production thereof, and flame retardant fiber fabric |
| US6867254B2 (en) | 2001-09-04 | 2005-03-15 | W.R. Grace & Co., - Conn. | Two-phase compositions |
| EP2275499A3 (en) * | 2007-11-01 | 2011-04-27 | E.M.A.T. Technologies Ltd. | Polymer-based fire-retarding formulations |
| WO2011152404A1 (en) * | 2010-06-01 | 2011-12-08 | リケンテクノス株式会社 | Composition for use as coating material and adhesive, method for adhesive bonding, and laminated products |
| CN104046201A (en) * | 2014-03-28 | 2014-09-17 | 上海大学 | Flexible expandable transparent fireproof paint and preparation method thereof |
| JP2022531214A (en) * | 2019-04-29 | 2022-07-06 | アクゾ ノーベル コーティングス インターナショナル ビー ヴィ | Halogen-free non-expandable flame-retardant coating composition |
-
1985
- 1985-09-13 JP JP60202964A patent/JPS6262871A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04155710A (en) * | 1990-10-19 | 1992-05-28 | Hitachi Cable Ltd | Fire retardant electric wire/cable |
| EP0729999A1 (en) * | 1995-03-03 | 1996-09-04 | Tosoh Corporation | Fire-retardant polymer composition |
| US6867254B2 (en) | 2001-09-04 | 2005-03-15 | W.R. Grace & Co., - Conn. | Two-phase compositions |
| US7381768B2 (en) | 2001-09-04 | 2008-06-03 | W.R. Grace & Co. -Conn. | Two-phase compositions |
| KR20020034134A (en) * | 2002-04-12 | 2002-05-08 | 조정용 | Noncombustible and thermal expansional tape |
| WO2004033585A1 (en) * | 2002-10-08 | 2004-04-22 | Suminoe Textile Co., Ltd. | Flame-retardant and method for production thereof, and flame retardant fiber fabric |
| EP2275499A3 (en) * | 2007-11-01 | 2011-04-27 | E.M.A.T. Technologies Ltd. | Polymer-based fire-retarding formulations |
| WO2011152404A1 (en) * | 2010-06-01 | 2011-12-08 | リケンテクノス株式会社 | Composition for use as coating material and adhesive, method for adhesive bonding, and laminated products |
| CN103038299A (en) * | 2010-06-01 | 2013-04-10 | 理研科技株式会社 | Composition for use as coating material and adhesive, method for adhesive bonding, and laminated products |
| JPWO2011152404A1 (en) * | 2010-06-01 | 2013-08-01 | リケンテクノス株式会社 | Paint and adhesive composition, adhesion method and laminate |
| US10590299B2 (en) | 2010-06-01 | 2020-03-17 | Riken Technos Corp. | Paint, adhesive composition, bonding method and laminate |
| CN104046201A (en) * | 2014-03-28 | 2014-09-17 | 上海大学 | Flexible expandable transparent fireproof paint and preparation method thereof |
| JP2022531214A (en) * | 2019-04-29 | 2022-07-06 | アクゾ ノーベル コーティングス インターナショナル ビー ヴィ | Halogen-free non-expandable flame-retardant coating composition |
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