JPS6212269B2 - - Google Patents
Info
- Publication number
- JPS6212269B2 JPS6212269B2 JP53090661A JP9066178A JPS6212269B2 JP S6212269 B2 JPS6212269 B2 JP S6212269B2 JP 53090661 A JP53090661 A JP 53090661A JP 9066178 A JP9066178 A JP 9066178A JP S6212269 B2 JPS6212269 B2 JP S6212269B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- cables
- forming material
- calcium carbonate
- 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
Links
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 9
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 7
- 229920001577 copolymer Polymers 0.000 claims description 7
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 claims description 6
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 5
- 239000004709 Chlorinated polyethylene Substances 0.000 claims description 4
- 238000004073 vulcanization Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 13
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- CRNSOGJNJXTEQG-UHFFFAOYSA-N 1,2-dichlorobuta-1,3-diene Chemical compound ClC=C(Cl)C=C CRNSOGJNJXTEQG-UHFFFAOYSA-N 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000003522 acrylic cement Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000007033 dehydrochlorination reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
- Paints Or Removers (AREA)
Description
本発明は防火層形成材とこれを適用した電線・
ケーブルに関するものである。
ビル、洞道及びピツト等において電線・ケーブ
ルが配線されているが、外部火源や絶縁破壊等に
より火災が発生した場合、配線されている電線・
ケーブルが燃料となつて伝播拡大し甚大な被害を
こうむる例が多くなつてきた。
電線・ケーブルの配線形態としては、細いサイ
ズの電線・ケーブルが多量に束ねられて配線され
ているグループケーブルの場合と高圧あるいは超
高圧OFケーブル、CVケーブル及び大サイズ電線
等が一条毎に多数配線されている場合に分けられ
るが、特に後者の場合には、適切な機械的強度を
持ち、長尺物に対しても施工が簡単で長期にわた
り広範な条件で使用できる耐火性にすぐれた防火
層形成材として好適なものが見当らない現状であ
る。
本発明の目的はこれらを同時に満足する防火層
形成材とその最適な応用例を提供することにあ
る。
本発明はポリクロロプレン或は塩素化ポリエチ
レンまたはそのブレンド物100重量部に対し、ク
ロロプレンと１，２ジクロロブタジエンの共重合
体15〜40重量部、水和アルミナと炭酸カルシウム
混合物（重量混合比２：１〜１：２）150〜300重
量部、ホウ酸亜鉛10〜50重量部を組成の主体とし
たものを加硫してなることを特徴とする防火層形
成材である。
この領域内の防火層形成材は、ポリクロロプレ
ンあるいは塩素化ポリエチレンおよびクロロプレ
ン―１，２ジクロロブタジエンの共重合体と水和
アルミナ、炭酸カルシウムとホウ酸亜鉛の作用に
より高度の難燃性が付与される。すなわち、水和
アルミナと炭酸カルシウムを２：１〜１：２の範
囲で併用するとAl2O3・CaO，Al2O3・2CaO，
Al2O3・3CaOのような強じんな炭化固化層が形
成され、ワレや収縮がなくすぐれた防火性が付与
される。ホウ酸亜鉛は比較的高温で脱塩化水素を
促進し難燃性の向上に有効である。さらに700℃
以上になると溶融体を形成し高温でのかたくずれ
を防ぐ。炭酸カルシウムは塩素の補促剤として作
用し腐食性を大巾に低下させることができる。
クロロプレンと１，２ジクロロブタジエンの共
重合体（液状ポリクロロプレン）は、15〜40重量
部が適当で、20〜30重量部が好ましい。また、そ
の粘度は25℃で30000〜100000cpsが適当で、
50000〜800000cpsが好ましい。この共重合体は
ポリクロロプレン、塩素化ポリエチレンと相溶性
がよく、軟化剤と軟燃剤の２つのはたらきをす
る。この共重合体の1/2程度をゴム用軟化剤と併
用しても差支えない。
水和アルミナと炭酸カルシウムの混合物は150
〜300重量部が適当で、180〜250重量部が好まし
い。下限以下になると耐火性が大きく低下し、上
限以上になると機械的特性と作業性とが低下す
る。またこれらの併用比は２：１〜１：２の範囲
が適当で、この範囲をはずれて水和アルミナが多
くなると燃焼後の炭化固化層の硬さが低下しヒビ
やワレが入りやすくなる。炭酸カルシウムが多く
なると塩素発生量は30mg／ｇ以下となるが、炭化
固化層は強じんであるが難燃性に有効である塩素
が補促されるので難燃性が低下する。
ホウ酸亜鉛は10〜50重量部がよく、10重量部以
下で難燃性が向上せず、燃焼中にヒビやワレが発
生しやすくなる。50重量部以上になると効果が飽
和してくる。
また、ゴム・プラスチツク等に使用されている
劣化防止剤、安定剤、着色剤、操作剤を加えても
差支えない。
本発明の実施例を比較例と共に第１表に示す。
The present invention relates to a fireproof layer forming material and an electric wire/wire to which the same is applied.
It's about cables. Electric wires and cables are wired in buildings, tunnels, pits, etc., but if a fire occurs due to an external fire source or insulation breakdown, the wires and cables that are wired will be destroyed.
There are an increasing number of cases in which cables become fuel and spread, causing serious damage. Wiring formats for electric wires and cables include group cables in which a large number of thin electric wires and cables are bundled and wired, and high-voltage or ultra-high-voltage OF cables, CV cables, large-sized electric wires, etc. wired in large numbers per line. Especially in the latter case, a fireproof layer with excellent fire resistance that has appropriate mechanical strength, is easy to install even on long objects, and can be used for a long time under a wide range of conditions. At present, there is no suitable material to be used as a forming material. An object of the present invention is to provide a fireproof layer forming material that satisfies these requirements at the same time, and an optimal example of its application. In the present invention, 15 to 40 parts by weight of a copolymer of chloroprene and 1,2 dichlorobutadiene, a mixture of hydrated alumina and calcium carbonate (weight mixing ratio 2: 1 to 1:2) and 10 to 50 parts by weight of zinc borate. The fire-retardant layer-forming material in this area is given a high degree of flame retardancy by the action of polychloroprene or chlorinated polyethylene and chloroprene-1,2 dichlorobutadiene copolymer, hydrated alumina, calcium carbonate, and zinc borate. Ru. That is, when hydrated alumina and calcium carbonate are used together in a ratio of 2:1 to 1:2, Al 2 O 3 · CaO, Al 2 O 3 · 2CaO,
A strong carbonized solidified layer such as Al 2 O 3 3CaO is formed, providing excellent fire resistance without cracking or shrinkage. Zinc borate promotes dehydrochlorination at relatively high temperatures and is effective in improving flame retardancy. Further 700℃
If the temperature is higher than that, a molten body is formed to prevent hardening and deformation at high temperatures. Calcium carbonate acts as a chlorine accelerator and can greatly reduce corrosivity. The copolymer of chloroprene and 1,2 dichlorobutadiene (liquid polychloroprene) is suitably used in an amount of 15 to 40 parts by weight, preferably 20 to 30 parts by weight. In addition, the appropriate viscosity is 30,000 to 100,000 cps at 25℃.
50000~800000cps is preferred. This copolymer is highly compatible with polychloroprene and chlorinated polyethylene, and functions as both a softener and a flame softener. There is no problem in using about 1/2 of this copolymer in combination with a rubber softener. The mixture of hydrated alumina and calcium carbonate is 150
~300 parts by weight is suitable, preferably 180-250 parts by weight. If it is below the lower limit, the fire resistance will be greatly reduced, and if it is above the upper limit, the mechanical properties and workability will be reduced. The ratio of these combinations is preferably in the range of 2:1 to 1:2; if the amount of hydrated alumina increases outside of this range, the hardness of the carbonized solidified layer after combustion decreases and cracks and cracks are likely to occur. When calcium carbonate increases, the amount of chlorine generated becomes 30 mg/g or less, but the carbonized solidified layer is strong, but since chlorine, which is effective for flame retardancy, is supplemented, the flame retardance decreases. Zinc borate should preferably be used in an amount of 10 to 50 parts by weight; if it is less than 10 parts by weight, flame retardancy will not improve and cracks and cracks will easily occur during combustion. When the amount exceeds 50 parts by weight, the effect becomes saturated. Furthermore, deterioration inhibitors, stabilizers, coloring agents, and handling agents used in rubber, plastic, etc. may be added. Examples of the present invention are shown in Table 1 along with comparative examples.
【表】【table】
【表】【table】
【表】
防火層形成材の形状としては、テープ状、シー
ト状など適宜な形状のものでよい。
また、電線・ケーブルなどへの巻付施工を便利
にするために、第２図に示すように、防火層形成
材２０の表面に極くうすい粘着層２１を塗布し、
更にその上にセパレータ（巻付施工時に剥離す
る）２２を設けた構造としてもよい。この場合、
粘着層としては、耐油性、耐水性の点から変性ア
クリル系のものが好ましい。
第３図は本発明の電線・ケーブルの一実施例を
示しており、電気ケーブル３０の表面に防火層形
成材３１を施した構造である。[Table] The fireproof layer forming material may be in any suitable shape such as tape or sheet. In addition, in order to conveniently wrap it around electric wires, cables, etc., as shown in FIG. 2, an extremely thin adhesive layer 21 is applied to the surface of the fireproof layer forming material 20.
Furthermore, a structure may be employed in which a separator 22 (which is peeled off during wrapping) is provided thereon. in this case,
The adhesive layer is preferably a modified acrylic adhesive layer from the viewpoint of oil resistance and water resistance. FIG. 3 shows an embodiment of the electric wire/cable of the present invention, which has a structure in which a fireproof layer forming material 31 is applied to the surface of an electric cable 30.
第１図は本発明の防火層形成材についての防火
性試験方法を示す説明図、第２図は本発明の防火
層形成材のひとつの具体例を示す説明図、第３図
は本発明の電線・ケーブルの一実施例を示す横断
面説明図である。
Ｃ，３０：電気ケーブル、Ｔ，２０，３１：防
火層形成材。
FIG. 1 is an explanatory diagram showing a fire retardant test method for the fireproof layer forming material of the present invention, FIG. 2 is an explanatory diagram showing one specific example of the fireproof layer forming material of the present invention, and FIG. FIG. 1 is a cross-sectional explanatory diagram showing an example of electric wires and cables. C, 30: electric cable, T, 20, 31: fireproof layer forming material.
Claims (1)
たはそのブレンド物100重量部に対し、クロロプ
レン―１，２ジクロロブタジエン共重合体15〜40
重量部、水和アルミナと炭酸カルシウムの混合物
（重量混合比２：１〜１：２）150〜300重量部、
ホウ酸亜鉛10〜50重量部を主体として含有する組
成物を所定形状に成形し、加硫してなることを特
徴とする防火層形成材。 ２ 電線・ケーブルの表面には、ポリクロロプレ
ン或は塩素化ポリエチレンまたはそのブレンド物
100重量部に対し、クロロプレン―１，２ジクロ
ロブタジエン共重合体15〜40重量部、水和アルミ
ナと炭酸カルシウムの混合物（重量比２：１〜
１：２）150〜300重量部、ホウ酸亜鉛10〜50重量
部を主体として含有する組成物をシート状または
テープ状に成形し、加硫してなる防火層形成材が
被覆されていることを特徴とする電線・ケーブ
ル。[Scope of Claims] 1. 15 to 40 parts by weight of chloroprene-1,2 dichlorobutadiene copolymer per 100 parts by weight of polychloroprene, chlorinated polyethylene, or a blend thereof.
parts by weight, 150 to 300 parts by weight of a mixture of hydrated alumina and calcium carbonate (weight mixing ratio 2:1 to 1:2);
A fireproof layer-forming material characterized by forming a composition containing 10 to 50 parts by weight of zinc borate as a main component into a predetermined shape and vulcanizing the composition. 2. The surface of electric wires and cables is coated with polychloroprene, chlorinated polyethylene, or a blend thereof.
For 100 parts by weight, 15 to 40 parts by weight of chloroprene-1,2 dichlorobutadiene copolymer, a mixture of hydrated alumina and calcium carbonate (weight ratio 2:1 to
1:2) A composition mainly containing 150 to 300 parts by weight and 10 to 50 parts by weight of zinc borate is formed into a sheet or tape shape and coated with a fireproof layer forming material formed by vulcanization. Electric wires and cables featuring
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9066178A JPS5518416A (en) | 1978-07-25 | 1978-07-25 | Fireproof layer-forming material and electric wire and cable made from it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9066178A JPS5518416A (en) | 1978-07-25 | 1978-07-25 | Fireproof layer-forming material and electric wire and cable made from it |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5518416A JPS5518416A (en) | 1980-02-08 |
| JPS6212269B2 true JPS6212269B2 (en) | 1987-03-17 |
Family
ID=14004706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9066178A Granted JPS5518416A (en) | 1978-07-25 | 1978-07-25 | Fireproof layer-forming material and electric wire and cable made from it |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5518416A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63190255A (en) * | 1987-02-02 | 1988-08-05 | Hitachi Ltd | fuel cell structure |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58119112A (en) * | 1982-01-07 | 1983-07-15 | 住友ベークライト株式会社 | Wire or cable |
| CN103773129A (en) * | 2014-01-20 | 2014-05-07 | 南通钰成光电科技有限公司 | Flame-retardant paint for cable shroud and preparation method of flame-retardant paint |
-
1978
- 1978-07-25 JP JP9066178A patent/JPS5518416A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63190255A (en) * | 1987-02-02 | 1988-08-05 | Hitachi Ltd | fuel cell structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5518416A (en) | 1980-02-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1218482A (en) | Flame-retardant cross-linked composition and flame- retardant cable using same | |
| AU2014253577B2 (en) | Fire Resistant Compositions | |
| ES2112594T5 (en) | ANTI-FLAMMABLE COMPOSITION FOR THE MANUFACTURE OF ELECTRICAL CABLES WITH MAINTENANCE OF ISOLATION AND / OR OPERATION. | |
| US3576388A (en) | Electrical cable | |
| US4151366A (en) | Flame resistant, insulated multi-conductor electric cable | |
| CA1118854A (en) | Electric cables with an enclosing sheath of low flammability material | |
| JPS60189114A (en) | Flame resistant cable | |
| CN102262936B (en) | High flame-retardant ultra-low temperature-resistant environment-friendly flexible cable | |
| JPS6212269B2 (en) | ||
| JPH01135895A (en) | Flame-resistant nondrying putty composition | |
| JPS6334919B2 (en) | ||
| JPH0745602B2 (en) | Flame retardant composition | |
| BRPI0806488A2 (en) | cable and use of a bedding composition to produce the same | |
| CN114783666A (en) | Anti-impact fire-resistant cable and preparation method thereof | |
| KR101804906B1 (en) | Power cable | |
| JPH01141929A (en) | Flame-retardant composition | |
| JPS63273693A (en) | fire protection material | |
| JPS6147753A (en) | Flame-retardant composition and flame-retardant cable using same | |
| JPS6140021Y2 (en) | ||
| JPS6213982B2 (en) | ||
| JPH0572416B2 (en) | ||
| JPS63118345A (en) | Fireproofing tape | |
| JPH0257581B2 (en) | ||
| CN2525648Y (en) | Three layer coextruding one step silicane crosslinking polyethylene insulation power cable | |
| JPS6338804B2 (en) |