JPS5851415A - Flame resistant insulated wire - Google Patents
Flame resistant insulated wireInfo
- Publication number
- JPS5851415A JPS5851415A JP56150118A JP15011881A JPS5851415A JP S5851415 A JPS5851415 A JP S5851415A JP 56150118 A JP56150118 A JP 56150118A JP 15011881 A JP15011881 A JP 15011881A JP S5851415 A JPS5851415 A JP S5851415A
- Authority
- JP
- Japan
- Prior art keywords
- insulated wire
- flame
- weight
- parts
- flame resistant
- 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
Landscapes
- Insulated Conductors (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は難燃性絶縁電線に係り、特に燃焼時にドリップ
を生じないようにするのに好適な難燃性絶縁材料を被覆
してなる難燃性絶縁電線に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a flame-retardant insulated wire, and more particularly to a flame-retardant insulated wire coated with a flame-retardant insulating material suitable for preventing dripping during combustion. be.
電線、ケーブルの絶縁材料としては、主として電気絶縁
性にすぐれたエチレン系ポリマが用いられている。Ethylene-based polymers, which have excellent electrical insulation properties, are mainly used as insulating materials for electric wires and cables.
しかし、最近の情勢として原子力発電所用ケーブル、車
輛用電線、モータロ出線などにUL規格vw−iレベル
の高度の難燃性が強く要望されるようになってきた。However, in recent years, there has been a strong demand for high flame retardancy at the UL standard VW-I level for cables for nuclear power plants, electric wires for vehicles, motor cords, etc.
ポリマの難燃化の1つとして塩素系あるいは臭素系化合
物と混和する方法があるが、これらを単に混和しただけ
では、燃焼時に゛燃焼物が溶融落下するというドリップ
現象が認められ、UL規格VW−ルベルの高度の難燃性
を付与することが困難である。One way to make polymers flame retardant is to mix them with chlorine-based or bromine-based compounds, but simply mixing them with them will cause a drip phenomenon in which burning materials melt and fall during combustion, and the UL standard VW - It is difficult to impart a high degree of flame retardancy.
本発明は上記に鑑みてなされたもので、その目的とする
と仁ろは、燃焼時に絶縁材料にドリップを生ぜず高度の
難燃性を有する難燃性絶縁電線を提供することにある。The present invention has been made in view of the above, and its object is to provide a flame-retardant insulated wire that does not cause drips in the insulating material during combustion and has a high degree of flame retardancy.
本発明′の特徴は、エチレン系ポリマ100重量部に対
して塩素量あるいは臭素量にして少な、くとも15重量
部以上の難燃剤を加え、さらに無水ケイ酸を0.3〜1
5重量部加えた混合物を導体に被覆した後架橋した絶縁
電線とした点にある。The present invention' is characterized by adding a small amount of flame retardant, at least 15 parts by weight of chlorine or bromine, to 100 parts by weight of the ethylene polymer, and further adding 0.3 to 1 parts by weight of silicic anhydride.
A conductor was coated with the mixture to which 5 parts by weight was added and then crosslinked to form an insulated wire.
エチレン系ポリマトハ、エチレンプuピレンコポリマ、
エチレンフロヒレンジエンコホリマ、ポリエチレン、エ
チレンブテンコポリマ、エチレン酢酸ビニルコポリマ、
エチレンエチルアクリレートコポリマ、塩素化ポリエチ
レンなどを単独あるいは併用したものをいう。Ethylene polymer, ethylene propylene copolymer,
Ethylene fluorene diene copolymer, polyethylene, ethylene butene copolymer, ethylene vinyl acetate copolymer,
Refers to ethylene ethyl acrylate copolymers, chlorinated polyethylene, etc. alone or in combination.
塩素あるいは臭素を含有する化合物ともては、パークロ
ロペンタシクロフレカン、ヘキサクUUピシクロジカル
ポキン酸、ヘキサブロモジフェニル、デカブロモジフェ
ニルエーテルなどがあげられる。塩素量あるいは臭素量
を15重量部以上としたのは、限定値以下ではUL規格
VW−ルベルの高度の難燃性を付与することができない
からである。Examples of compounds containing chlorine or bromine include perchloropentacyclofurcane, hexabromodiphenyl, decabromodiphenyl ether, and the like. The reason why the amount of chlorine or the amount of bromine is set to 15 parts by weight or more is that if it is less than the limited value, it is not possible to provide a high degree of flame retardancy meeting the UL standard VW-Lebel.
なお、難燃化効果をあげるため三酸化アンチモンを併用
するようにしてもよい。無水ケイ酸の量を0.3〜15
重量部と限定したのは、0.6重量部以下では燃焼時の
ドリップを抑えることができず、また、15重量部以上
では混和物の粘度が著しく高くなり、押出性が悪くなる
ためである。Note that antimony trioxide may be used in combination to increase the flame retardant effect. The amount of silicic anhydride is 0.3 to 15
The reason why it is limited to 0.6 parts by weight or less is that dripping during combustion cannot be suppressed, and if it is 15 parts by weight or more, the viscosity of the mixture becomes extremely high and extrudability deteriorates. .
架橋剤としてはジクミルパーオキサイドに代表される有
機過酸化物が適切であり、これを単独あるいは助剤とし
て硫黄などを併用してもよい。As a crosslinking agent, an organic peroxide represented by dicumyl peroxide is suitable, and it may be used alone or in combination with sulfur or the like as an auxiliary agent.
なお、さらに酸化防止剤を加えることが必要でちゃ、酸
化防止剤としては、N、1/−ジ−β−ナフチル−p−
フエニlレンジアミンなどのアミン系および4.4′−
チオ−ビス−(3メチル−6−t−ブチルフェノール)
、2.6−ジーt−ブチル−p−クレゾールなどのフェ
ノール系酸化防止剤などがあげられる。これら以外に必
要に応じて滑剤、分散剤などを加えるようにしてもよい
ことはいうまでもない。In addition, if it is necessary to further add an antioxidant, the antioxidant is N,1/-di-β-naphthyl-p-
Amine-based such as phenyl diamine and 4,4'-
Thio-bis-(3methyl-6-t-butylphenol)
and phenolic antioxidants such as 2,6-di-t-butyl-p-cresol. It goes without saying that other than these, lubricants, dispersants, etc. may be added as necessary.
次に本発明の実施例および比較例について説明する。Next, examples and comparative examples of the present invention will be described.
第1表は難燃性絶縁物の実施例および比較例の配合物と
配合量とを表記しだので、配合量の単位は重量部で示し
である。Table 1 shows the formulations and amounts of the flame-retardant insulators in Examples and Comparative Examples, so the amounts are expressed in parts by weight.
第 1 表
電線の製造は、混和物を6インチロールで混練後、これ
をシリンダ温度を120℃に保った40m/m押出機(
L/D=251 針イ、外径1.7鴫の銅線に厚さ1.
0 mに被覆した後、16気圧のスチーム(温度約19
5℃)を3分間当てることにより架橋した。The first electric wire was manufactured by kneading the mixture with a 6-inch roll and then using a 40 m/m extruder (with a cylinder temperature of 120°C).
L/D=251 Needle A, copper wire with an outer diameter of 1.7 mm and a thickness of 1.
After coating to 0 m, steam at 16 atm (temperature approx.
5° C.) for 3 minutes.
第2表は第1表に示す実施例および比較例の絶縁材料を
用いた絶縁電線の難燃性および電気特性の試験結果であ
る。Table 2 shows test results for flame retardancy and electrical properties of insulated wires using the insulating materials of the Examples and Comparative Examples shown in Table 1.
−4のものは、いずれも燃焼時にドリップが見られず、
tJL規格VW−1に合格し、押出外観も良好である。-4, no drips were observed during combustion,
It passes the tJL standard VW-1 and has a good extruded appearance.
これに対して比較例5,6は、無水ケイ酸が入っていな
いため、UL規格VW−、−1に不合格となっている。On the other hand, Comparative Examples 5 and 6 did not meet the UL standards VW- and -1 because they did not contain silicic anhydride.
また、比較例7は無水ケイ酸の量が限定値15重量部以
上となっているため、難燃性は合格であるが、押出外観
はやけを生じで不良である。Furthermore, in Comparative Example 7, the amount of silicic anhydride was greater than the limit value of 15 parts by weight, so the flame retardance was passed, but the extrusion appearance was poor due to discoloration.
なお、無水ケイ酸を含水ケイ酸に変えてもほぼ同様の効
果がある。Note that almost the same effect can be obtained even if anhydrous silicic acid is replaced with hydrated silicic acid.
上記したように、本発明の実施例によれば、燃焼時にド
リップを生ぜず、UL規格VW−1に合格する高度の難
燃性を有する絶縁電線が得られ、原子力発電所用電線、
ケーブルとして好適であり、工業的価値が極めて大きい
。As described above, according to the embodiments of the present invention, it is possible to obtain an insulated wire that does not produce drips during combustion and has a high degree of flame retardancy that passes UL standard VW-1.
It is suitable as a cable and has extremely large industrial value.
以上説明したように、本発明によれば、燃焼時に絶縁材
料にドリップを生ぜず、高度の難燃性を有するという効
果がある。As explained above, according to the present invention, the insulating material does not drip during combustion and has a high degree of flame retardancy.
Claims (1)
るいは臭素量にして少なくとも15重量部以上の難燃剤
を加え、さらに無水ケイ酸を0.6〜15重量部加えた
混和物を導体に被覆した後架橋してなることを特徴とす
る難燃性絶縁電線。1. The conductor was coated with a mixture in which at least 15 parts by weight of chlorine or bromine of a flame retardant was added to 100 parts by weight of ethylene polymer, and 0.6 to 15 parts by weight of silicic anhydride was added. A flame-retardant insulated wire characterized by being post-crosslinked.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56150118A JPS5851415A (en) | 1981-09-22 | 1981-09-22 | Flame resistant insulated wire |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56150118A JPS5851415A (en) | 1981-09-22 | 1981-09-22 | Flame resistant insulated wire |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5851415A true JPS5851415A (en) | 1983-03-26 |
Family
ID=15489874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56150118A Pending JPS5851415A (en) | 1981-09-22 | 1981-09-22 | Flame resistant insulated wire |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5851415A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1986004595A1 (en) * | 1985-02-09 | 1986-08-14 | Dainichi Nihon Densen Kabushiki Kaisha | Polyolefin composition |
JPS61228050A (en) * | 1985-03-30 | 1986-10-11 | Mitsubishi Cable Ind Ltd | Resin composition |
JPS61228049A (en) * | 1985-03-30 | 1986-10-11 | Mitsubishi Cable Ind Ltd | Resin composition |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50139379A (en) * | 1974-04-24 | 1975-11-07 |
-
1981
- 1981-09-22 JP JP56150118A patent/JPS5851415A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50139379A (en) * | 1974-04-24 | 1975-11-07 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1986004595A1 (en) * | 1985-02-09 | 1986-08-14 | Dainichi Nihon Densen Kabushiki Kaisha | Polyolefin composition |
JPS61228050A (en) * | 1985-03-30 | 1986-10-11 | Mitsubishi Cable Ind Ltd | Resin composition |
JPS61228049A (en) * | 1985-03-30 | 1986-10-11 | Mitsubishi Cable Ind Ltd | Resin composition |
JPH024619B2 (en) * | 1985-03-30 | 1990-01-29 | Mitsubishi Cable Ind Ltd | |
JPH0463904B2 (en) * | 1985-03-30 | 1992-10-13 | Mitsubishi Cable Ind Ltd |
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