JPH01302611A - Flame-resistant electric wire or cable - Google Patents
Flame-resistant electric wire or cableInfo
- Publication number
- JPH01302611A JPH01302611A JP63134165A JP13416588A JPH01302611A JP H01302611 A JPH01302611 A JP H01302611A JP 63134165 A JP63134165 A JP 63134165A JP 13416588 A JP13416588 A JP 13416588A JP H01302611 A JPH01302611 A JP H01302611A
- Authority
- JP
- Japan
- Prior art keywords
- insulating layer
- flame
- metal hydroxide
- resistance
- pts
- 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
- 229910000000 metal hydroxide Inorganic materials 0.000 claims abstract description 18
- 150000004692 metal hydroxides Chemical class 0.000 claims abstract description 18
- 229920000098 polyolefin Polymers 0.000 claims description 12
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 10
- 239000003063 flame retardant Substances 0.000 claims description 10
- 239000004020 conductor Substances 0.000 claims description 2
- 239000012212 insulator Substances 0.000 claims 1
- 238000005299 abrasion Methods 0.000 abstract description 7
- 229910052736 halogen Inorganic materials 0.000 abstract description 4
- 150000002367 halogens Chemical class 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 4
- 230000002588 toxic effect Effects 0.000 abstract description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract description 3
- 231100000331 toxic Toxicity 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- QLZJUIZVJLSNDD-UHFFFAOYSA-N 2-(2-methylidenebutanoyloxy)ethyl 2-methylidenebutanoate Chemical compound CCC(=C)C(=O)OCCOC(=O)C(=C)CC QLZJUIZVJLSNDD-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 1
- 239000005042 ethylene-ethyl acrylate Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- -1 polyethylene, ethylene acetate Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 231100000563 toxic property Toxicity 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 229920006163 vinyl copolymer Polymers 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、難燃性絶縁電線・ケーブルに係り、詳しく
は燃焼時に有毒なハロゲン系ガスを発生しない絶縁電線
・ケーブルに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to flame-retardant insulated wires and cables, and more particularly to insulated wires and cables that do not generate toxic halogen gases when burned.
［従来の技術］
７１ｆ線・ケーブルの絶縁材料やシース材料としては電
気絶縁性に優れたポリオレフィンか数多く用いられてき
ている。最近の趨勢として原子力発電所用電線・ケーブ
ル、車両用電線・ケーブル、船舶用電線・ケーブルに垂
直トレイ燃焼試験レベルの高度の難燃性が要望されるよ
うになつてきた。[Prior Art] Many polyolefins with excellent electrical insulation properties have been used as insulating materials and sheath materials for 71f wires and cables. A recent trend is that electric wires and cables for nuclear power plants, electric wires and cables for vehicles, and electric wires and cables for ships are required to have a high level of flame retardancy at the level of the vertical tray combustion test.
ポリオレフィンを難燃化する方法としては、へロゲン含
有化合物を混和する方法が一般に採用されてきている。As a method of making polyolefin flame retardant, a method of incorporating a herogen-containing compound has generally been adopted.
しかし、これらは燃焼時多量の煙を発生し、機器への腐
食性１人体への有害性等が問題になフている。特に、最
近は安全面からこのようなハロゲン系ガスを発生しない
こζが要望されるようになってきている。However, these produce a large amount of smoke when burned, causing problems such as corrosiveness to equipment and toxicity to the human body. In particular, recently there has been a demand for not generating such halogen-based gas from a safety standpoint.
このような情勢を踏まえ、発煙性、有毒性の非常に少な
い金属水酸化物か注目されるようになってきた。In light of this situation, metal hydroxides with extremely low smoke-emitting and toxic properties are attracting attention.
［発明か解決しようとする課題］
ところで、金属水酸化物は難燃効果が小さいため高度の
難燃性を付与するには、金属水酸化物を多量に加える必
要があり、その結果、＃庫耗性および耐候性が著しく低
下するという問題がある。[Problem to be solved by the invention] By the way, since metal hydroxides have a small flame retardant effect, it is necessary to add a large amount of metal hydroxides in order to impart a high degree of flame retardancy. There is a problem that wear resistance and weather resistance are significantly reduced.
この発明は、このような点に鑑みてなされたもので、良
好な耐摩耗性、耐候性および高ＪｉｌｔＯ難燃性な有し
、しかも燃焼時に有ｉＦＸなハ「１ゲン系ガスを発生ｌ
ノない難燃性絶縁′Ｉｔ線・ケ・−フルを提供すること
を［１的とする。This invention has been made in view of these points, and has good wear resistance, weather resistance, and high JiltO flame retardancy, and also generates an iFX 1-gen gas during combustion.
It is an object of the present invention to provide a flame-retardant insulation film without any flame retardant insulation.
［課題を解決するだめの手段］
この発明の難燃性電線・ケーブルは、絶縁層を内外２層
構造とし、内部絶縁層をポリオレフィンｉｏｏ石量部に
対１ノ金属水酸化物１００−５００重量部含有釘る組成
物により、外部絶縁層をポリオレフィン１００重量部に
対し金属水酸化物を２０〜８０重皐部含有するｍ酸物に
よりそわぞれ形成し、内部絶縁層と外部絶縁層の厚さの
比を９５ ／ ５−−７０ ／ ３０となるように構成
したものである。[Means for Solving the Problems] The flame-retardant electric wire/cable of the present invention has an insulating layer having a two-layer structure, an inner and outer layer, and an inner insulating layer made of polyolefin, i. The outer insulating layer is formed from a metal hydroxide containing 20 to 80 parts by weight of a metal hydroxide to 100 parts by weight of polyolefin, and the thickness of the inner and outer insulating layers is The ratio is 95/5 to 70/30.
［実 施 例コ
この発明においてポリオレフィンとしてはエチＩノンプ
ロピレンコポリマー、エチレンプロピレンシエンターボ
リマー、ポリエチレン、エチレン酢醜ビニルコポリマー
、エヂレンエチル゛アクリレー１−コポリ”７−、ニゲ
レンツテンコポリマーといったものかあげられ、これら
は単独または２種以−に〇を用して使用される。[Example] Examples of the polyolefin in this invention include ethyl non-propylene copolymer, ethylene propylene sientar polymer, polyethylene, ethylene acetate vinyl copolymer, ethylene ethyl acrylate 1-copoly7-, and nigerenthene copolymer. , these may be used alone or in combination of two or more.
金属水酸化物としては水酸化アルミニウム、水酸化４”
クネシウム、塩基性炭酸マグオシウム、ハイドロタル・
リーイ１へ類等があり、これらは単独または２挿具１−
併用して使用してもよい。Metal hydroxides include aluminum hydroxide and 4" hydroxide.
Cnesium, basic magosium carbonate, hydrotal
There are 1 types, and these can be used alone or with 2 fittings 1-
May be used in combination.
この発明においては、ポリオレフィンと金属水酸化物を
含有する組ｒ＆物により導体または絶縁線心外周の絶縁
層を形成し、この絶縁層な内外２層とする。内部絶縁層
をポリオレフィンｌＯＯ重１直部に対し金属水酸化物を
１００−５００重埴都合有する組Ｔｓ、物により形成し
、外部絶縁層をポリオレノイン１００重Ｖ部に対し金属
水酸化物を２０〜８０重量部含有する組Ｉ＆物により形
成して、かつ内部絶縁層と外部絶縁層の厚さの比を９５
１５〜７０／３０となるように設定することにより耐摩
耗性、耐候性および難燃性を満足させるものＣある。In this invention, an insulating layer around the outer periphery of the conductor or insulated wire core is formed using a composite material containing polyolefin and metal hydroxide, and this insulating layer has two layers, an inner layer and an outer layer. The inner insulating layer is formed of a material containing 100 to 500 parts of metal hydroxide to 1 part of polyolefin, and the outer insulating layer is made of a material containing 20 to 50 parts of metal hydroxide to 100 parts of polyolefin. The thickness ratio of the inner insulating layer and the outer insulating layer is 95.
There is a method C that satisfies wear resistance, weather resistance, and flame retardancy by setting the ratio to be 15 to 70/30.
即ち、ポリオレフィンに対する金属水酸化物の含有量か
多い程難燃性は向りするか、これに件ない逆に耐摩耗性
、耐候性は低下する。この発明では高度の難燃性を有す
る組成物を内部絶縁層とし、耐摩耗性、耐候性に優れた
組成物を外部絶縁層とし、しかも内部絶縁層と外部絶縁
層の厚さの比を特定の範囲とすることにより目的の特性
を得るようにしたものである。That is, the higher the content of metal hydroxide in the polyolefin, the better the flame retardance, or conversely, the lower the abrasion resistance and weather resistance. In this invention, a highly flame-retardant composition is used as the inner insulating layer, a composition with excellent wear resistance and weather resistance is used as the outer insulating layer, and the thickness ratio of the inner insulating layer and the outer insulating layer is specified. By setting the range of , the desired characteristics are obtained.
このような観点から内部絶縁層における金属本酸化物の
含有量は１００〜５００重量部とする必要かあり、下限
値未満ては目的とする難燃性を付与てきず、上限値を越
えると押出加工性が著しく低下し、成形不能となる。ま
た、外部絶縁層における金属水酸化物の含右与は２０〜
８０毛都部どする必要かあり、下限値以下では所望の難
燃性が得られず、−４−限値を越えると耐摩耗性、＃候
性か大幅に悪くなる。From this point of view, the content of the metal oxide in the internal insulating layer needs to be 100 to 500 parts by weight; if it is less than the lower limit, the desired flame retardancy cannot be imparted, and if it exceeds the upper limit, extrusion Workability is significantly reduced and molding becomes impossible. Further, the content of metal hydroxide in the outer insulating layer is 20~
Below the lower limit, the desired flame retardancy cannot be obtained, and above the -4 limit, the abrasion resistance and weatherability deteriorate significantly.
さらに内部絶縁層と外部絶縁層の厚さの割合な９５１５
−７０／３０の範囲とする必要があり、外部絶縁層の厚
さか５％未満では耐摩耗性、＃鱈性か不十分てあり、３
０％を越えると難燃性か低下する。Furthermore, the ratio of the thickness of the inner insulating layer and the outer insulating layer is 9515
-70/30, and if the thickness of the outer insulating layer is less than 5%, the wear resistance is insufficient.
If it exceeds 0%, flame retardancy will decrease.
この発明においてはポリオレフィンおよび金属水酸化物
に加えて醸化防止剤、紫外線吸収剤、安定剤、滑剤等を
添加してもよく、また絶縁層は架橋、未架橋のどちらで
もよい。In this invention, in addition to the polyolefin and metal hydroxide, a fermentation inhibitor, ultraviolet absorber, stabilizer, lubricant, etc. may be added, and the insulating layer may be either crosslinked or uncrosslinked.
以下１この発明の具体的な実施例を比較例と対比しなか
ら説明する。第１表の実施例１〜５および比較例１へ−
３に示す各種組成物の成分を温度１２０°Ｃに保持した
６インチロールに投入しロール混練を行ない、混練後温
度１６０°Ｃに保持した５ ０ ｙｎ ／ ｍ押出機（
Ｌ／Ｄ＝２５）を用い゛て外形４．０ｒｒｉｍのエチレ
ンプロピレンゴム絶縁線心を２本より合せた外周に２．
Ｏｒｎｍ厚で押出被覆１ノ、各種ケーブルを作製しそれ
ぞれの試料とした。Hereinafter, a specific example of the present invention will be explained in comparison with a comparative example. To Examples 1 to 5 and Comparative Example 1 in Table 1-
The components of the various compositions shown in 3 were put into a 6-inch roll kept at a temperature of 120°C and kneaded by rolls.
L/D=25), 2.
Various types of cables were produced with extrusion coatings having a thickness of 1.0 nm and were used as samples.
得られた試料のシｆ価結果は、第１表の下欄に示すとお
りである。The Si f values of the obtained samples are as shown in the lower column of Table 1.
耐摩耗性は、ＪＩＳ Ｃ３３２７に準処ｌノ荷重１ｋ
ｇで３００回回転させたとぎ、被覆物かｙ！、耗１７・
て内部の絶縁線心か現われるかどうか調べ、絶縁線心か
露出するものを不合格とした。Wear resistance is 1k load according to JIS C3327.
When rotated 300 times at g, the coating or y! , wear 17・
It was checked to see if the internal insulated wire core was visible, and those with exposed insulated wire cores were rejected.
耐候性試験は、日本電線工業規格第３９１号に準しＪＩ
Ｓ Ｋ７１１２のダンベル３号て打ち抜いた試料を１
０００時間暴露した後、ショッパ型引張試験機を用い２
００ｍｍ／分で引張試験を行ない、伸びか５０％以上を
合格とし、５０％未満を不合格とした。The weather resistance test was conducted by JI in accordance with Japan Electric Cable Industry Standard No. 391.
Samples punched out with S K7112 dumbbell No. 3
After 2,000 hours of exposure, using a Schopper tensile tester,
A tensile test was conducted at a speed of 00 mm/min, and an elongation of 50% or more was considered a pass, and an elongation of less than 50% was considered a fail.
難燃性の評価は、Ｉ ＥＥＥ規格３８３に準処し、２，
４ｍの長さのケーブルを１１本垂直に並べ２０分間燃焼
させ炎を取り去った後、バーナーから１．８ｍ以内で自
己消火すれば合格、全焼すれば不合格とした。Flame retardancy evaluation is based on IEEE standard 383, 2.
Eleven cables with a length of 4 m were lined up vertically and burned for 20 minutes to remove the flame, and if the fire self-extinguished within 1.8 m from the burner, the test was passed, and if the test was completely burnt out, the test was judged to have failed.
ｉ１表に示すとうり、この発明の範囲にある実施例１〜
５のものは、耐摩耗性、耐候性が良好てあり、難燃性は
ＩＥＥＥ規格３８３に合格する。As shown in Table i1, Examples 1 to 1 within the scope of this invention
5 has good abrasion resistance and weather resistance, and the flame retardance passes IEEE standard 383.
これに対し、比較例１は内部絶縁層の水酸化マグネシウ
ムの混和量が限定値未満のものてあり、難燃性か不合格
である。On the other hand, in Comparative Example 1, the amount of magnesium hydroxide mixed in the internal insulating layer was less than the limited value, and the film was judged to be flame retardant or rejected.
比較例２は外部絶縁層の水酸化アルミニウムの混和量か
限定値を越え、また比較例３は外部絶縁層のない構造の
ものであり耐摩耗性、耐候性が不合格となっている。In Comparative Example 2, the amount of aluminum hydroxide mixed in the external insulating layer exceeded the limit value, and in Comparative Example 3, the structure did not have an external insulating layer, and the abrasion resistance and weather resistance failed.
（以下余白）
［発明の効果］
以り説１１ｑ Ｌ、たとおり、この発明によれば良好な
耐摩耗性、耐候性および高度の難燃性を有し、しかも有
識なハＶ１ゲン系カスを発生しない難燃Ｈ′屯線・ケー
ブルか得られる。(The following is a blank space) [Effects of the invention] Further theory 11q L, according to this invention, the invention has good abrasion resistance, weather resistance, and high flame retardancy, and moreover, it uses the well-known HaV1 gene scum. A flame-retardant H' tonne wire/cable that does not generate flames can be obtained.
Claims (1)
００〜５００重量部含有する内部絶縁層を導体または絶
縁体の外周に設け、この外側にポリオレフィン１００重
量部に対し金属水酸化物を２０〜８０重量部含有する外
部絶縁層を形成し、内部絶縁層と外部絶縁層の厚さの比
が９５／５〜７０／３０であることを特徴とする難燃性
電線・ケーブル。1 metal hydroxide per 100 parts by weight of polyolefin
An internal insulating layer containing 00 to 500 parts by weight of a metal hydroxide is provided on the outer periphery of the conductor or insulator, and an external insulating layer containing 20 to 80 parts by weight of a metal hydroxide per 100 parts by weight of polyolefin is formed on the outside of the inner insulating layer. A flame-retardant wire/cable characterized in that the thickness ratio between the layer and the outer insulating layer is 95/5 to 70/30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63134165A JPH01302611A (en) | 1988-05-30 | 1988-05-30 | Flame-resistant electric wire or cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63134165A JPH01302611A (en) | 1988-05-30 | 1988-05-30 | Flame-resistant electric wire or cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01302611A true JPH01302611A (en) | 1989-12-06 |
Family
ID=15121972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63134165A Pending JPH01302611A (en) | 1988-05-30 | 1988-05-30 | Flame-resistant electric wire or cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01302611A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1001435A2 (en) * | 1998-11-09 | 2000-05-17 | Yazaki Corporation | Non-halogenated flame-retarded covered wire |
| JP2004259683A (en) * | 2003-02-27 | 2004-09-16 | Furukawa Electric Co Ltd:The | Fire-resistant cable and its molding method |
| US7276664B2 (en) * | 1996-06-07 | 2007-10-02 | Belden Technologies, Inc. | Cable with dual layer jacket |
| US7495174B2 (en) | 2004-06-03 | 2009-02-24 | Autonetworks Technologies, Limited | Coated Electric Wire |
| CN106024169A (en) * | 2016-08-12 | 2016-10-12 | 中天科技装备电缆有限公司 | High-flame-retardant, long-service-life and high-load low-smoke halogen-free building cloth wire and preparing technology |
-
1988
- 1988-05-30 JP JP63134165A patent/JPH01302611A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7276664B2 (en) * | 1996-06-07 | 2007-10-02 | Belden Technologies, Inc. | Cable with dual layer jacket |
| EP1001435A2 (en) * | 1998-11-09 | 2000-05-17 | Yazaki Corporation | Non-halogenated flame-retarded covered wire |
| EP1001435A3 (en) * | 1998-11-09 | 2001-02-07 | Yazaki Corporation | Non-halogenated flame-retarded covered wire |
| US6248446B1 (en) | 1998-11-09 | 2001-06-19 | Yazaki Corporation | Non-halogenated flame-retarded covered wire |
| JP2004259683A (en) * | 2003-02-27 | 2004-09-16 | Furukawa Electric Co Ltd:The | Fire-resistant cable and its molding method |
| JP4532076B2 (en) * | 2003-02-27 | 2010-08-25 | 古河電気工業株式会社 | Flame-retardant cable and method for forming the same |
| US7495174B2 (en) | 2004-06-03 | 2009-02-24 | Autonetworks Technologies, Limited | Coated Electric Wire |
| CN106024169A (en) * | 2016-08-12 | 2016-10-12 | 中天科技装备电缆有限公司 | High-flame-retardant, long-service-life and high-load low-smoke halogen-free building cloth wire and preparing technology |
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