JPS5814415A - Flame resistant wire - Google Patents

Flame resistant wire

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Publication number
JPS5814415A
JPS5814415A JP56111921A JP11192181A JPS5814415A JP S5814415 A JPS5814415 A JP S5814415A JP 56111921 A JP56111921 A JP 56111921A JP 11192181 A JP11192181 A JP 11192181A JP S5814415 A JPS5814415 A JP S5814415A
Authority
JP
Japan
Prior art keywords
low
resin
layer
ethylene
crystalline polyolefin
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
JP56111921A
Other languages
Japanese (ja)
Inventor
守 近藤
村田 吉和
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP56111921A priority Critical patent/JPS5814415A/en
Publication of JPS5814415A publication Critical patent/JPS5814415A/en
Pending legal-status Critical Current

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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】 この発明はS燃性、防食性にすぐれたII!3鰍被橿防
食層を有する難燃電MKIII L、詳しくのべると、
熱可塑性1ift()10ゲン元素を含まない)Kて絶
縁被儀せる2芯以上の多芯芯線からなる電線の外周防食
層として非晶性を丸は低結晶性ポリオレフ゛イン本mr
iiitのシツングツレト化物と無機充填−の11[1
えはそれ以上よ)なる樹脂層を形成させ、この樹脂層を
水架橋させてなるll!燃電線に関するものである。
[Detailed Description of the Invention] This invention has excellent S flammability and corrosion resistance! In detail, flame-retardant electric MKIII L has a three-layer corrosion protection layer.
The circle is a low-crystalline polyolefin with an amorphous outer layer as an anti-corrosion layer for electric wires made of two or more multicore wires that are insulated with thermoplastic 1ift (10% free of elements).
iiiit compound and inorganic filling - 11 [1
This resin layer is formed by water-crosslinking this resin layer. It concerns fuel wires.

従来難燃性の一線は絶縁層、防食層の材料としてポリエ
チレン、軟質塩化ビニル、エチレン−プロピレンゴムな
ど鵞使用している。
Traditionally, flame retardant materials such as polyethylene, soft vinyl chloride, and ethylene-propylene rubber have been used as materials for insulation and anticorrosion layers.

しかしながら、これらの材料は可燃性であ如、火災時火
芙が伝播し、延焼を助長するものであった。
However, since these materials are flammable, fireflies can propagate in the event of a fire, promoting the spread of the fire.

このため、いったん火災か発生し九場合には被害が甚大
となると思われる個所に敷設される電線とじてに離愁性
にすることが豊水され、骸電線の杷緘増、防食層の材料
管離燃化する研究が続けられている。
For this reason, it is recommended that electric wires installed in areas where the damage would be severe in the event of a fire occur, resulting in an increase in the number of dead electric wires and the separation of material from the anti-corrosion layer. Intense research continues.

そしてこれまでのIm離燃として紘ハロゲンを含むポリ
マーあるvhはハロゲンを含む難燃剤と三酸化アンチモ
ンとの組合わせによるものが一般的である。
The conventional Im flame retardant VH, which is a polymer containing a halogen, is generally made of a combination of a halogen-containing flame retardant and antimony trioxide.

しかし、ハロゲンを用iることKよって非常に蟲い離燃
性は得られるものの、燃焼時に分解ガスとして人体に有
害でToj1%を九腐食性の強いハロゲンガスな放出す
る欠点を有してiた。
However, although the use of halogens provides very good flammability, it has the disadvantage of emitting halogen gas, which is harmful to the human body and highly corrosive, as decomposed gas during combustion. Ta.

これまでに上記の腐食性ガスを発生せしめない―燃性組
成物として無機粉末を多量にポリマーに添加して不燃性
部分管多くすることKよって離燃化とする研究も行われ
ている。
Up to now, research has been conducted on adding a large amount of inorganic powder as a flammable composition to a polymer to increase the number of nonflammable partial tubes, which does not generate the above-mentioned corrosive gases, thereby achieving flammability.

しかし、このような方法も前述したハロゲンを用iた難
燃性組成−に比べると離燃@度は低く、同atom燃性
を付与させるためKは無機粉末をよ〕多量に配合しなけ
ればならな10ところが電線の防食層として用いる丸め
Kd離燃性のはかKも槍々の物性を満足させなければな
らないこともあって、上記の離燃性改良研究で実用に供
せられるものは得られて−な−のが現状である。
However, even with this method, the degree of flame retardation is lower than that of the above-mentioned flame retardant composition using halogen, and in order to impart the same atom flammability, K must be blended with a large amount of inorganic powder. However, since the rounded Kd and flammable flakes used as anti-corrosion layers for electric wires must also satisfy the physical properties of the spears, the above-mentioned research on improving flammability cannot be put to practical use. The current situation is that it has been achieved.

本発明者らは上記のようなS継電!IKおける欠陥解消
にクーで種々検討の結果、難燃性でかつ腐食性ガスを放
出せず、窃らに防食層としての稙々の物性を満足するこ
との出来る離燃電線を見出しえものである。
The present inventors proposed the above-mentioned S relay! As a result of various studies aimed at eliminating defects in IKs, we were able to find a flame-retardant electrical wire that is flame-retardant, does not emit corrosive gases, and satisfies the appropriate physical properties as an anti-corrosion layer. be.

即ち゛ζO発明O賛旨とするとζろは、第1図に示すよ
うに熱可履性樹脂にて絶縁被a!し九怠芯以上の多芯芯
−璽からなる電線ムの外周に非晶性または低結晶性ポリ
オレアイン系樹脂のシラング  □ラット化物100 
重量部に水酸化アルミ二りム、水酸イヒマグーククム、
塩基性炭i!ダネシウムなパどの無機充填剤のl柚ま九
はそれ以上を100〜80″Oム゛意Sを配合し九樹脂
層を設け、これt水架倫させて防食層8iしたものであ
って、これによって第1表に示すポリエチレン防食層と
して必賛性能を十分満足せしめることができるのである
In other words, if we assume that ζO is in favor of the invention, then ζ is insulated with a thermoplastic resin as shown in FIG. Silang of amorphous or low crystalline polyolein resin is applied to the outer periphery of the electric wire consisting of a multi-core wire with a diameter of 100% or more. □ Rat compound 100
Weight parts include aluminum hydroxide, ihimagukukum hydroxide,
Basic charcoal i! The inorganic filler such as Danesium is blended with 100 to 80'' OmniS to form a resin layer, which is then water-circulated to form an anti-corrosion layer. This allows the polyethylene anticorrosion layer to fully satisfy the performance requirements shown in Table 1.

菖1表 この発明において使用する非晶性ある−は低結晶性ポリ
、オ、レフイン系41111iIとしては、6千チレン
−αオレフィン共重合体、エチレン−酢故ビニル共重合
体、エチレン−アクリル敵エステル共重合体などが挙げ
られるが、41にそのなかでも低結晶性のものが好まし
い。
Table 1 Examples of the amorphous and low-crystalline polyolefin-based 41111iI used in this invention include 6,000 ethylene-alpha olefin copolymer, ethylene-acetic acid vinyl copolymer, and ethylene-acrylic polymer. Examples include ester copolymers, among which those with low crystallinity are preferred.

非品性あるいは低結晶性ポリオレフィン系@腫を用いる
理由は、ポリエチレン、ポリプロピレン′などの結晶性
ポリオレフィン系*mでは充填剤の多量混合ができない
か、あるいはできたとしても組成物の′引張p強さ、伸
びなどの物性が暴く使用に供し元な一九・めである− 無機充填剤として水酸化アルミニウム、水数化マグネシ
ウム、塩基性炭酸マグネシフ五などを用いるのは、これ
以外の無機充填剤に比べてはるかにすぐれた難燃性を付
与できる丸めである。
The reason for using non-quality or low-crystalline polyolefins is that with crystalline polyolefins such as polyethylene and polypropylene, it is not possible to mix a large amount of filler, or even if it is possible, the tensile strength of the composition is low. The use of aluminum hydroxide, magnesium hydroxide, basic magnesium carbonate, etc. as inorganic fillers is different from other inorganic fillers. It is a rounded shape that can provide far superior flame retardancy compared to other materials.

セし、てこの無機充填剤の配合量を非品性または低結晶
性ポリオレアイン系IN JiiOy yング、ラフト
化物1001111部に対して−11,09〜soo、
重量部の範囲とするのは、この、量が100重量部未満
では十分なJIlfI&性を付与できず、を九sOO重
量部を超えると両者の混合が困難となって得2.られる
樹脂組成物の物性が着しく低下するためである。
The blending amount of the inorganic filler is -11,09 to 11,000 parts per 1001111 parts of the rafted material.
The reason for setting this range is that if the amount is less than 100 parts by weight, sufficient JIlfI& property cannot be imparted, and if it exceeds 9 sOO parts by weight, it becomes difficult to mix the two. This is because the physical properties of the resin composition are seriously deteriorated.

この発明において、シランクラフト化物による水架mを
行なうのは、非品性あるい社低結晶性ポリオレフィン系
樹脂を用いるために、防食層としての心機性能の1つで
ある加熱変形性が悪くなるので、この点を改嵐するえめ
である。
In this invention, the use of a silane kraft compound for water cross-pollination is unsatisfactory, and since a low-crystalline polyolefin resin is used, heat deformability, which is one of the core properties of the anti-corrosion layer, deteriorates. Therefore, it is time to revise this point.

架橋方法としては水架−のほかに有機過酸化物架橋、電
子線兼備などがあるが、有機過酸化物架―で祉^温^圧
中で架橋を行う丸めに2芯以上の多ムからなり、これが
熱可塑性樹脂を用いて絶縁植機された芯層である電線に
おいては、熱可塑性11J11の融点をこえてしまい、
このために絶縁被榎層が変形する欠点を有し、ま九電子
線架橋では設4I4費用がかかること、および防食層が
厚くなると内部まで果倫しにくiという欠点が69好ま
しくなio 資するにこの発明の難燃電線においては、(1)  植
種すべき絶縁層および防食層として用いる樹脂組成物中
にへロゲンを全く含有していないので火災時にへロゲン
化合物による有害jスが発生しな10 (2)防食層g*用する樹脂およびそのIIMWIの架
橋方法を特定するととによって電線の防食層としての心
壁特性を全て満足させることができる。
In addition to water crosslinking, crosslinking methods include organic peroxide crosslinking and electron beam crosslinking. Therefore, in electric wires whose core layer is insulated using thermoplastic resin, the melting point of thermoplastic 11J11 is exceeded,
This has the disadvantage that the insulating layer is deformed, and electron beam crosslinking is expensive to install, and the thicker the anticorrosion layer is, the more difficult it is to reach the inside. In the flame-retardant electric wire of the present invention, (1) the resin composition used as the insulating layer and anticorrosion layer to be seeded contains no herogen at all, so no harmful gas is generated by the herogen compound in the event of a fire; (2) By specifying the resin used for the anti-corrosion layer g* and the crosslinking method of its IIMWI, all the core wall properties as an anti-corrosion layer for electric wires can be satisfied.

(3)  離燃性含有する防食層を有するので難燃電線
とすることができる。
(3) Since it has an anti-corrosion layer containing flammability, it can be used as a flame-retardant electric wire.

などの種々の利点を具備する仁とができるのである。This makes it possible to create products with various advantages such as:

以下この発明を実施例によシ詳1m1lK説明する。This invention will be explained in detail below using examples.

実施例 第2表に示すような機脂と無機充填剤の各配合を夫々オ
ープンロールで混練し、各種の試験を行う厚みのシート
KW14整した。またシランクラフト化した樹脂を用い
る場合は、そのフートを80℃の湯中に24時間浸漬し
たのち架IIを行った。
Examples Each of the combinations of fat and inorganic filler shown in Table 2 was kneaded using open rolls, and sheets having a thickness of KW14 were prepared for various tests. In addition, when a silane-crafted resin was used, the foot was immersed in hot water at 80° C. for 24 hours, and then the frame II was performed.

(注)※l:住友化学社製、 ※2:三井石油化学社製1 、*8:化学化学社製1 、壷4:三醜化工社製。(Note) *l: Manufactured by Sumitomo Chemical Co., Ltd. *2: Manufactured by Mitsui Petrochemical Co., Ltd. 1 , *8: Manufactured by Kagaku Kagaku Co., Ltd. 1 , Jar 4: Manufactured by Sanugou Kakosha.

各槙試験の方法は次の通りであ)、その結果は第8表に
示した。
The method for each Maki test was as follows), and the results are shown in Table 8.

(1)酸iA詣数二畠■シートを用いてJISK720
1に従って測定し、酸素指数26 以上を良とした。
(1) JISK720 using Acid iA Pilgrimage Nibata sheet
1, and an oxygen index of 26 or higher was considered good.

(2)  引張9強さおよび伸び:l■シートを用いて
JIS C−8006−16に従って一定し、引張り強
さ1.O(−以上、 かつ伸び860−以上を良とした。
(2) Tensile strength and elongation: Constant according to JIS C-8006-16 using l■ sheet, tensile strength 1. O(- or more) and elongation of 860- or more were considered good.

(3)  90℃、96時間老化後の引張シ、強さ残率
および伸び残率:1簡7−トを用いてJISC−800
6−17K従って測定し、引。
(3) Tensile strength, strength retention and elongation retention after aging at 90°C for 96 hours: JISC-800 using 1-strip 7-t
6-17K therefore measured and subtracted.

張)強さ残率8〇−以上、引張 シ伸び残率661G以上を良とし た。Tensile) Strength retention rate 80- or more, tensile A residual elongation rate of 661G or more is considered good. Ta.

(4)  加熱変形75℃=21シートを用いてJIS
C−8006−!B K従って測定した。
(4) JIS heat deformation using 75℃=21 sheet
C-8006-! BK was measured accordingly.

おも)は、5tとし、厚みの減少 率が101s以下を艮とした。(main) is 5t, and the thickness is reduced. If the rate is 101s or less, it is considered a failure.

(5)  耐油性:1−シートを用いて)xs C80
05−18に従って測定した。
(5) Oil resistance: 1-using sheet) xs C80
Measured according to 05-18.

引張ル強さ残率60−以上かつ 伸び残率’60−以上を良とした。Tensile strength residual rate 60- or more and A residual elongation rate of '60- or higher was considered good.

(6)低温性:2露7−トを用いてJIS C8005
−22に従って測定した。
(6) Low temperature: JIS C8005 using 2 dew 7-t
-22.

一60℃で試験片が破壊しな−こ とを良とした。The test piece does not break at -60℃. was considered good.

なお上記第8表Kivhて比較例3は、特性i良好であ
るが、ハロゲンが入っている丸め悪化しえ。
Note that Comparative Example 3 in Table 8 above has good characteristics i, but the rounding caused by the presence of halogen may be worse.

ま友実施例1と比較’N6に有機過酸化物としてジクミ
ルパーオキサイド(DCP)を2部配合した2種の組成
物について、8−の導体Kl−の低密度ポリエチレンを
核種した絶縁芯!18本をよ如合わせ、その上に上記2
111の組□成物を1.6−の厚さに押出し、実施例1
は80℃水中で24時間水架橋し、比較例5は蒸気20
!/−で1分加熱、加圧し、架橋させた。架橋させた両
サンプルを解体したところ実施例1は異常なかったが、
比較例6は絶縁層が互いに融着変形し、実用には供せら
れなかった。
Comparison with Mayu Example 1 Regarding two types of compositions in which 2 parts of dicumyl peroxide (DCP) as an organic peroxide was blended with 'N6, the insulating core was nuclided with low density polyethylene of 8- conductor Kl-! Mix the 18 pieces together and add the above 2 pieces on top.
111 composition was extruded to a thickness of 1.6 - Example 1
was water-crosslinked in water at 80°C for 24 hours, and Comparative Example 5 was crosslinked with steam at 20°C.
! /- for 1 minute and pressurized to cause crosslinking. When both crosslinked samples were disassembled, there was no abnormality in Example 1, but
In Comparative Example 6, the insulating layers were fused and deformed to each other, and could not be put to practical use.

【図面の簡単な説明】[Brief explanation of drawings]

1面はこの発明になる難燃電線の構造を示す断面図であ
ゐ。
The first page is a sectional view showing the structure of the flame-retardant electric wire according to the present invention.

Claims (1)

【特許請求の範囲】 (1)  熱可塑性樹脂(/%ログ7元素を含まない)
Kて絶縁被覆せる2芯以上の多芯芯線からなる′11紐
において、外周の防食へ層として非品性または低結晶性
ポリオレフィン系樹脂の7ラングラフト化物100X量
・部と無機光7填剤1極またはそれ以上を1(16〜8
00重量部とよ)なる8M1層を形成せしめ、該樹脂一
層を水架橋し、たことを特徴とする離燃電線。 り2)  非品性または低結晶性ポリオレフィン系樹脂
としてエチレン−αオレフィン共重合体を用いるととを
特徴とする特許請求の範囲第1項記載の離燃電線。 (3)非晶性また社低結晶性ポリオレアイン系樹脂トし
てエチレン−酢酸ビニル共重合体を用□いることを特徴
とする特許績゛求の範囲第1項記載の離燃電線。 (4)  非晶性または低結晶性ポリオレフィン系樹脂
としてエチレン−アクリル識エステル共重合体を用いる
ことt%黴とする特許請求の範囲第1項記載の離燃電線
。 (5)  無機、充填剤として水酸化アルミニウム、水
酸化アグネシウム、塩基性炭酸マグネシウムなどの18
1またはそれ以上を用いることを特徴とする特許請求の
範囲1111項記載の*燃亀*。
[Claims] (1) Thermoplastic resin (does not contain /%log7 elements)
In the '11 string consisting of a multi-core wire with two or more cores coated with insulation, 100X amount/part of a 7-run grafted product of a non-quality or low crystalline polyolefin resin and an inorganic light 7 filler are used as an anti-corrosion layer on the outer periphery. 1 pole or more 1 (16~8
1. A decombustible electric wire characterized in that a single layer of 8M (00 parts by weight) is formed, and one layer of the resin is cross-linked with water. 2) The flame release electric wire according to claim 1, characterized in that an ethylene-α olefin copolymer is used as the non-quality or low-crystalline polyolefin resin. (3) The combustion wire according to item 1 of the patent application, characterized in that an ethylene-vinyl acetate copolymer is used as the amorphous or low-crystalline polyolein resin. (4) The flame release wire according to claim 1, wherein an ethylene-acrylic ester copolymer is used as the amorphous or low-crystalline polyolefin resin. (5) Inorganic fillers such as aluminum hydroxide, agnesium hydroxide, basic magnesium carbonate, etc.
The *burning turtle* according to claim 1111, characterized in that one or more of these are used.
JP56111921A 1981-07-16 1981-07-16 Flame resistant wire Pending JPS5814415A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56111921A JPS5814415A (en) 1981-07-16 1981-07-16 Flame resistant wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56111921A JPS5814415A (en) 1981-07-16 1981-07-16 Flame resistant wire

Publications (1)

Publication Number Publication Date
JPS5814415A true JPS5814415A (en) 1983-01-27

Family

ID=14573449

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56111921A Pending JPS5814415A (en) 1981-07-16 1981-07-16 Flame resistant wire

Country Status (1)

Country Link
JP (1) JPS5814415A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6149310A (en) * 1984-08-16 1986-03-11 株式会社フジクラ Flame resistant cable
JPS62246203A (en) * 1986-04-18 1987-10-27 日本電信電話株式会社 Acid resistant flame retardant cable

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS534876A (en) * 1976-07-03 1978-01-17 Sumitomo Electric Ind Ltd Flame resisting electric cable
JPS5641610A (en) * 1979-09-13 1981-04-18 Sumitomo Electric Industries Fire resistant electric wire

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS534876A (en) * 1976-07-03 1978-01-17 Sumitomo Electric Ind Ltd Flame resisting electric cable
JPS5641610A (en) * 1979-09-13 1981-04-18 Sumitomo Electric Industries Fire resistant electric wire

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6149310A (en) * 1984-08-16 1986-03-11 株式会社フジクラ Flame resistant cable
JPH0430692B2 (en) * 1984-08-16 1992-05-22
JPS62246203A (en) * 1986-04-18 1987-10-27 日本電信電話株式会社 Acid resistant flame retardant cable

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