JPH03226911A - Insulated wire - Google Patents

Insulated wire

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Publication number
JPH03226911A
JPH03226911A JP1916490A JP1916490A JPH03226911A JP H03226911 A JPH03226911 A JP H03226911A JP 1916490 A JP1916490 A JP 1916490A JP 1916490 A JP1916490 A JP 1916490A JP H03226911 A JPH03226911 A JP H03226911A
Authority
JP
Japan
Prior art keywords
insulating layer
insulation layer
outer periphery
insulation
layer
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
JP1916490A
Other languages
Japanese (ja)
Inventor
Izumi Ishikawa
石川 泉
Hideo Sunatsuka
砂塚 英夫
Akira Yoshino
明 吉野
Masaki Hasegawa
長谷川 正毅
Motohisa Murayama
村山 元久
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.)
Fujikura Ltd
Original Assignee
Fujikura 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 Fujikura Ltd filed Critical Fujikura Ltd
Priority to JP1916490A priority Critical patent/JPH03226911A/en
Publication of JPH03226911A publication Critical patent/JPH03226911A/en
Pending legal-status Critical Current

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  • Insulated Conductors (AREA)

Abstract

PURPOSE:To enhance a dielectric breakdown characteristic in bending and to obtain an insulated wire excellent in flexibility and in electric characteristics by providing a combination of special three-layer insulation structure. CONSTITUTION:A first insulation layer 2 comprising a cross-linking polyolefine polymer is provided directly or via an insulating material on the outside periphery of a conductor 1, and a second insulation layer 3 comprising a polyamide is prepared on the outside periphery of the first insulation layer 2. A third insulation layer 4 comprising one or more kinds of polymer selected among groups of a polyphenylene oxide, polyether ketone and the like, is further prepared on the outside periphery of the second insulation layer 3. According to this constitution, an insulation wire is obtained, in which thin thickness is realized as a whole so as to make flexibility excellent though the insulation layer thereof is three layers, the electric characteristics are superior and the probability of defect such as a pin hole is low.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、電気的特性に優れ、耐外傷性、可撓性に富む
絶縁電線に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an insulated wire that has excellent electrical properties, high trauma resistance, and high flexibility.

〔従来の技術〕[Conventional technology]

従来、導体上に架橋ポリオレフィンからなる絶縁層を施
してなる絶縁電線が知られている。また、導体上に機械
的強度が高く、耐外傷性に優れるエンジニアリングプラ
スチック(芳香族ポリマー等)を施してなる絶縁電線も
知られている。さらに、これら2つの従来例を組合せて
なる二重絶縁電線は、当業界では、容易に頚椎できる技
術であり、電線の構成そのものが導体上に絶縁体を施し
、この外周に保護層として、ジャケットを施してなる電
線が汎用のものであり、当業界では多くの例を見ること
ができる。
2. Description of the Related Art Insulated wires have been known in which an insulating layer made of crosslinked polyolefin is provided on a conductor. Furthermore, insulated wires are also known in which a conductor is coated with an engineering plastic (such as an aromatic polymer) that has high mechanical strength and excellent trauma resistance. Furthermore, the double insulated wire, which is a combination of these two conventional examples, is a technology that is easily recognized in the industry. Electric wires made with this method are commonly used, and many examples can be found in the industry.

〔解決しようとする課題〕[Problem to be solved]

従来の二重絶縁電線では、曲げ時の絶縁破壊特性が未だ
満足ずべきも、のではなかった。そこで、可撓性が良く
、ピンホール等の欠陥確率の低下を図り、かつ電気特性
に優れたものが要望されている。
Conventional double-insulated wires still have unsatisfactory dielectric breakdown characteristics when bent. Therefore, there is a need for a material that has good flexibility, reduces the probability of defects such as pinholes, and has excellent electrical characteristics.

本発明は、このような要望を満足する絶縁電線を提供す
ることを目的とする。
An object of the present invention is to provide an insulated wire that satisfies such demands.

〔課題を解決するだめの手段〕[Failure to solve the problem]

」二連の目的を達成するため、本発明は、導体の外周に
直接又は他の絶縁物を介して架橋ポリオレフィンポリマ
ーから成る第1絶縁層を施し、この第1絶縁層の外周に
ポリアミドから成る第2絶縁層を施し、この第2絶縁層
の外周にポリフェニレンオキサイド、ポリエーテルケト
ン、ポリエーテルエーテルケトン、ポリカーボネート、
ポリブチレンテレフタレート、ポリエチレンテレフタレ
ート、ポリエーテルイミド、ポリアリレート1、ポリ4
−メチル−1−ペンテン、ポリサルホン、ポリエーテル
ザルホン、フッ素系ポリマーおよびポリアミドからなる
群から選ばれた1種以上のポリマーからなる第3絶縁層
を施したものである。
To achieve the dual objectives, the present invention provides a first insulating layer made of a crosslinked polyolefin polymer on the outer periphery of the conductor, either directly or through another insulator, and a first insulating layer made of a polyamide on the outer periphery of the first insulating layer. A second insulating layer is applied, and the outer periphery of the second insulating layer is coated with polyphenylene oxide, polyetherketone, polyetheretherketone, polycarbonate,
Polybutylene terephthalate, polyethylene terephthalate, polyetherimide, polyarylate 1, poly4
A third insulating layer made of one or more polymers selected from the group consisting of -methyl-1-pentene, polysulfone, polyethersulfone, fluorine-based polymers, and polyamides is provided.

〔作用〕[Effect]

本発明では、特殊な三層絶縁構造の組合せにより、曲げ
時の絶縁破壊特性が著しく向上するとともに、可撓性に
富み、電気的特性にも優れていることが判明した。
In the present invention, it has been found that the combination of a special three-layer insulation structure significantly improves the dielectric breakdown characteristics during bending, and also provides excellent flexibility and electrical properties.

〔実施例〕〔Example〕

以下に本発明の好適な実施例を図面に基づいて説明する
Preferred embodiments of the present invention will be described below based on the drawings.

図面において、すす、ニッケル、銀などのメツキを施し
た銅導体単線1又はより線から成る導体1の外周に架橋
ポリオレフィンから成る第1絶縁層2を施しである。第
1絶縁層2は厚さ0.1〜1 mm程度に形成した。こ
こでの架橋ポリオレフィンとしては、ポリエチレン、ポ
リプロピレン、ポリ1−ブテン、ポリイソブチレン、ポ
リ4−メチル−1−ペレテンなどのオレフィンモノマー
の単独重合体、エチレン−エチルアクリレート共重合体
(EEA)、エチレン−酢酸ビニル共重合体(EVA)
、エチレン−プロピレン共重合体(EPR)、エチレン
−プロピレン−ジエン共! 合体(EPDM)、エチレ
ン−ブテン−1共重合体、エチレン−ブテン−1−ジエ
ン共重合体などの共重合体あるいはこれらの2種以上の
ブレンドポリマーなどのポリオレフィンを架橋したもの
が用いられる。ここでの架橋方法としては、ジクミルパ
ーオキサイド、t−プチルクミルパーオキザイドなどの
有機過酸化物を上記ポリオレフィンに適量添加した組成
物を押出被覆し、加熱して架橋する方法、上記ポリオレ
フィンを押出被覆したのち、電子線を照射して架橋する
方法、上記ポリオレフィンにビニルトリメトキシシラン
、ビニ・ルトリエトキシシラン、ビニルトリス(β−メ
トキシエトシ)シラン等のシラン化合物と有機過酸化物
を添加して混練してシラングラフト化ポリオレフィンと
し、このシラングラフト化ポリオレフィンを押出被覆し
たのち、大気中あるいは水中で架橋させる方法などであ
る。電子線照射の場合、二層、三層を施したのち後で一
括して照射架橋を行ってもよい。
In the drawing, a first insulating layer 2 made of crosslinked polyolefin is applied around the outer periphery of a conductor 1 made of a single or stranded copper conductor plated with soot, nickel, silver, or the like. The first insulating layer 2 was formed to have a thickness of about 0.1 to 1 mm. Examples of crosslinked polyolefins include homopolymers of olefin monomers such as polyethylene, polypropylene, poly-1-butene, polyisobutylene, and poly-4-methyl-1-peretene, ethylene-ethyl acrylate copolymers (EEA), and ethylene-ethyl acrylate copolymers (EEA). Vinyl acetate copolymer (EVA)
, ethylene-propylene copolymer (EPR), ethylene-propylene-diene! Crosslinked polyolefins such as EPDM, copolymers such as ethylene-butene-1 copolymer, ethylene-butene-1-diene copolymer, or blend polymers of two or more of these are used. The crosslinking method here includes a method in which a composition in which an appropriate amount of an organic peroxide such as dicumyl peroxide or t-butylcumyl peroxide is added to the above polyolefin is extrusion coated, and the above polyolefin is crosslinked by heating. After coating by extrusion, crosslinking is carried out by irradiating with an electron beam, and a silane compound such as vinyltrimethoxysilane, vinylrutriethoxysilane, vinyltris(β-methoxyethoxy)silane and an organic peroxide are added to the polyolefin. This method includes kneading to form a silane-grafted polyolefin, extrusion coating the silane-grafted polyolefin, and then crosslinking in air or water. In the case of electron beam irradiation, irradiation crosslinking may be performed all at once after applying two or three layers.

第1絶縁層2の外周にはポリアミドから成る第2絶縁層
3を施しである。この第2絶縁層3は厚さ0.001〜
0.5n+m程度に形成した。使用するポリアミドとし
ては、ナイロン6、ナイロン66゜ナイロン610.ア
イロン612.ナイロン11゜ナイロン12.ナイロン
46が好適である。
A second insulating layer 3 made of polyamide is applied to the outer periphery of the first insulating layer 2. This second insulating layer 3 has a thickness of 0.001~
It was formed to have a thickness of about 0.5n+m. The polyamides used include nylon 6, nylon 66°, nylon 610. Iron 612. Nylon 11° Nylon 12. Nylon 46 is preferred.

第2絶縁層3の外周には、厚さ0.05〜1mm程度の
第3絶縁層4を施した。この第3絶縁層4としては、次
のエンジニアリングプラスチックから成る群から選ばれ
た1種以上のポリマーの使用が好適である。
A third insulating layer 4 having a thickness of about 0.05 to 1 mm was applied to the outer periphery of the second insulating layer 3. As the third insulating layer 4, it is preferable to use one or more polymers selected from the group consisting of the following engineering plastics.

(エンジニアリングプラスチック) ポリフェニレンオキサイド、 ポリエーテルケトン、 ポリエーテルエーテルケトン、 ポリカーボネート、 ポリブチレンテレフタレート、 ポリエチレンテレフタレート、 ポリエーテルイミド、   ポリアリレート、ポリ4−
メチル−1−ペンテン、 ポリサルホン、   ポリエーテルサルホン、フッ素系
ポリマーおよびポリアミド。
(Engineering plastics) Polyphenylene oxide, polyetherketone, polyetheretherketone, polycarbonate, polybutylene terephthalate, polyethylene terephthalate, polyetherimide, polyarylate, poly4-
Methyl-1-pentene, polysulfone, polyethersulfone, fluoropolymers and polyamides.

なお、導体1の外周に他の絶縁物を介して第1絶縁層2
を施しても良い。
Note that a first insulating layer 2 is formed on the outer periphery of the conductor 1 via another insulator.
may be applied.

次表に本発明の実施例1〜4と比較例1〜6とを示す。The following table shows Examples 1 to 4 of the present invention and Comparative Examples 1 to 6.

〔効果〕〔effect〕

以上説明したように、本発明は特殊な三層構造の組合せ
により、絶縁層が三層にもかかわらず全体として薄肉化
でき可撓性に優れるとともに、電気特性にも優れ、ピン
ホール等の欠陥確率を低下できる。
As explained above, due to the combination of the special three-layer structure of the present invention, although the insulating layer is three layers, the overall thickness can be made thin and has excellent flexibility, as well as excellent electrical properties and defects such as pinholes. The probability can be lowered.

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

図面は本発明の好適な実施例を示す断面図である。 1・・・導体、 2・・・第1絶縁層、 3・・・第2絶縁層、 4・・・第3絶縁層。 The drawings are cross-sectional views showing preferred embodiments of the present invention. 1... conductor, 2...first insulating layer, 3... second insulating layer, 4...Third insulating layer.

Claims (1)

【特許請求の範囲】 1、導体(1)の外周に直接又は他の絶縁物を介して架
橋ポリオレフィンポリマーから成る第1絶縁層(2)を
施し、 この第1絶縁層(2)の外周にポリアミドから成る第2
絶縁層(3)を施し、 この第2絶縁層(3)の外周にポリフェニレンオキサイ
ド、ポリエーテルケトン、ポリエーテルエーテルケトン
、ポリカーボネート、ポリブチレンテレフタレート、ポ
リエチレンテレフタレート、ポリエーテルイミド、ポリ
アリレート、ポリ4−メチル−1−ペンテン、ポリサル
ホン、ポリエーテルサルホン、フッ素系ポリマーおよび
ポリアミドからなる群から選ばれた1種以上のポリマー
からなる第3絶縁層(4)を施したことを特徴とする絶
縁電線。
[Claims] 1. A first insulating layer (2) made of a cross-linked polyolefin polymer is applied directly or via another insulator to the outer periphery of the conductor (1), and the first insulating layer (2) is coated on the outer periphery of the first insulating layer (2). A second layer made of polyamide
An insulating layer (3) is applied, and on the outer periphery of this second insulating layer (3) polyphenylene oxide, polyether ketone, polyether ether ketone, polycarbonate, polybutylene terephthalate, polyethylene terephthalate, polyetherimide, polyarylate, poly4- An insulated wire comprising a third insulating layer (4) made of one or more polymers selected from the group consisting of methyl-1-pentene, polysulfone, polyethersulfone, fluorine-based polymers, and polyamides.
JP1916490A 1990-01-31 1990-01-31 Insulated wire Pending JPH03226911A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1916490A JPH03226911A (en) 1990-01-31 1990-01-31 Insulated wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1916490A JPH03226911A (en) 1990-01-31 1990-01-31 Insulated wire

Publications (1)

Publication Number Publication Date
JPH03226911A true JPH03226911A (en) 1991-10-07

Family

ID=11991742

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1916490A Pending JPH03226911A (en) 1990-01-31 1990-01-31 Insulated wire

Country Status (1)

Country Link
JP (1) JPH03226911A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03110721U (en) * 1990-05-12 1991-11-13
JPH0419913A (en) * 1990-05-14 1992-01-23 Fujikura Ltd Electric cable
JPH04101315U (en) * 1991-02-20 1992-09-01 東京特殊電線株式会社 Multilayer insulated wire for high frequency transformer winding
JPH04116310U (en) * 1991-03-29 1992-10-16 東京特殊電線株式会社 Multilayer insulated wire for high frequency transformer winding
US6436557B1 (en) * 1998-05-29 2002-08-20 Sumitomo Electric Industries, Ltd. Flame retardant resin composition, and insulating electric wire, tube, heat-shrinkable tube, flat cable, and DC high-tension electric wire all made of the composition
MY120074A (en) * 1998-05-29 2005-08-30 Sumitomo Electric Industries Flame retardant resin composition, and insulating electric wire, tube, heat-shrinkable tube, flat cable and dc high-tension electric wire all made of the composition

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03110721U (en) * 1990-05-12 1991-11-13
JPH0419913A (en) * 1990-05-14 1992-01-23 Fujikura Ltd Electric cable
JPH04101315U (en) * 1991-02-20 1992-09-01 東京特殊電線株式会社 Multilayer insulated wire for high frequency transformer winding
JPH04116310U (en) * 1991-03-29 1992-10-16 東京特殊電線株式会社 Multilayer insulated wire for high frequency transformer winding
US6436557B1 (en) * 1998-05-29 2002-08-20 Sumitomo Electric Industries, Ltd. Flame retardant resin composition, and insulating electric wire, tube, heat-shrinkable tube, flat cable, and DC high-tension electric wire all made of the composition
MY120074A (en) * 1998-05-29 2005-08-30 Sumitomo Electric Industries Flame retardant resin composition, and insulating electric wire, tube, heat-shrinkable tube, flat cable and dc high-tension electric wire all made of the composition

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