JPH0721842A - Electric cable insulated by fluoro-resin - Google Patents
Electric cable insulated by fluoro-resinInfo
- Publication number
- JPH0721842A JPH0721842A JP5190720A JP19072093A JPH0721842A JP H0721842 A JPH0721842 A JP H0721842A JP 5190720 A JP5190720 A JP 5190720A JP 19072093 A JP19072093 A JP 19072093A JP H0721842 A JPH0721842 A JP H0721842A
- Authority
- JP
- Japan
- Prior art keywords
- tetrafluoroethylene
- insulated
- coating layer
- weight
- parts
- 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.)
- Granted
Links
Landscapes
- Paints Or Removers (AREA)
- Organic Insulating Materials (AREA)
- Insulated Conductors (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、耐熱性、耐磨耗性、耐
油性を有し、かつ可撓性が改良されたフッ素樹脂絶縁電
線に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluororesin insulated electric wire having heat resistance, abrasion resistance, oil resistance and improved flexibility.
【０００２】[0002]
【従来技術および発明が解決しようとする課題】モータ
ー用口出線、車輌用電線、自動車用電線、特にエンジン
近傍で使用される自動車用電線等の機器用絶縁電線は、
高度な耐熱性、耐磨耗性、耐油性、カットスルー性等が
要求されている。例えば、耐熱性について言えば、２０
０℃で４万時間の老化試験にも耐える機器用絶縁電線が
求められている。上記の機器用絶縁電線としては、ＰＴ
ＦＥ、ＰＦＡ、ＦＥＰ、ＥＴＥＦ等のフッ素樹脂からな
る機器用絶縁電線があった。2. Description of the Related Art Insulated electric wires for equipment such as lead wires for motors, electric wires for vehicles, electric wires for automobiles, particularly electric wires for automobiles used near an engine are
High heat resistance, abrasion resistance, oil resistance, cut-through properties, etc. are required. For example, in terms of heat resistance, 20
There is a demand for insulated wires for equipment that can withstand the aging test for 40,000 hours at 0 ° C. As the insulated wire for the above equipment, PT
There have been insulated wires for equipment made of fluororesins such as FE, PFA, FEP, and ETEF.
【０００３】ところで、近年の機器、装置等の小型化に
伴い、上記機器用電線は、狭いスペースに電線を効率よ
く配線できるよう、上記の要求特性の他に可撓性が求め
られている。しかしながら、上記のフッ素樹脂からなる
機器用絶縁電線は、可撓性に乏しいため、上記したごと
き小型化された狭い機器内には、該機器用絶縁電線を効
率よく配線できず、また配線時の作業性にも問題があっ
た。一方、フッ素ゴムからなる機器用絶縁電線があった
が、耐磨耗性、カットスルー特性に劣る問題があった。
また、エチレン−四フッ化エチレン共重合体と四フッ化
エチレン−プロピレン共重合体とからなる組成物があっ
た（特開昭５２−１２３４４４）。With the recent miniaturization of equipment and devices, the electric wires for the equipment are required to have flexibility in addition to the above-mentioned required characteristics so that the electric wires can be efficiently wired in a narrow space. However, since the insulated wire for equipment made of the above-mentioned fluororesin is poor in flexibility, it is not possible to efficiently wire the insulated wire for equipment in the small and narrowed equipment as described above, and at the time of wiring. There was also a problem with workability. On the other hand, there was an insulated wire for equipment made of fluororubber, but there was a problem that it was inferior in wear resistance and cut-through characteristics.
There was also a composition composed of an ethylene-tetrafluoroethylene copolymer and a tetrafluoroethylene-propylene copolymer (JP-A-52-123444).
【０００４】本発明の目的は、耐熱性、耐磨耗性、耐油
性を有し、かつ可撓性が良好なフッ素樹脂絶縁電線を提
供することである。An object of the present invention is to provide a fluororesin insulated electric wire having heat resistance, abrasion resistance, oil resistance and good flexibility.
【０００５】[0005]
【課題を解決するための手段および作用】本発明者は、
上記課題を解決すべく鋭意検討した結果、上記課題はエ
チレン−四フッ化エチレン系共重合体１００重量部に対
して、未焼成の四フッ化エチレン−プロピレン系共重合
体を１０〜１４０重量部配合してなる組成物の被覆層を
有し、該被覆層が架橋されていることを特徴とするフッ
素樹脂絶縁電線によって解決される。Means and Actions for Solving the Problems
As a result of intensive studies to solve the above-mentioned problems, the above-mentioned problems are 10 to 140 parts by weight of unburned tetrafluoroethylene-propylene-based copolymer with respect to 100 parts by weight of ethylene-tetrafluoroethylene-based copolymer. A solution is provided by a fluororesin-insulated electric wire, which has a coating layer of a compounded composition, and the coating layer is crosslinked.
【０００６】本発明のフッ素樹脂絶縁電線は、上記の配
合組成物の被覆層を有し、該被覆層を架橋することによ
って、耐熱性、耐磨耗性、耐油性を有し、かつ可撓性を
有する。The fluororesin-insulated electric wire of the present invention has a coating layer of the above-mentioned compounded composition, and by crosslinking the coating layer, it has heat resistance, abrasion resistance, oil resistance, and flexibility. Have sex.
【０００７】次に本発明の材料について詳細に説明す
る。本発明に用いるエチレン−四フッ化エチレン系共重
合体は、公知のものを用いることができ、例えば旭硝子
社製アフロンＣＯＰ、ダイキン工業社製ネオフレンＥＰ
５２１等が挙げられる。また、本発明で用いるエチレン
−四フッ化エチレン系共重合体は、主成分のエチレンと
四フッ化エチレンに加えて、これらと共重合可能な成
分、例えば、プロピレン、ブテン−１、フッ化ビニリデ
ン、フッ化ビニル、ヘキサフルオロプロペン等を含んで
いてもよい。Next, the material of the present invention will be described in detail. As the ethylene-tetrafluoroethylene-based copolymer used in the present invention, known ones can be used. For example, Aflon COP manufactured by Asahi Glass Co., Ltd., Neofrene EP manufactured by Daikin Industries, Ltd.
521 and the like. In addition, the ethylene-tetrafluoroethylene copolymer used in the present invention is, in addition to ethylene and tetrafluoroethylene as main components, a component copolymerizable with them, such as propylene, butene-1, and vinylidene fluoride. , Vinyl fluoride, hexafluoropropene, etc. may be contained.
【０００８】本発明で用いる未焼成四フッ化エチレン−
プロピレン系共重合体としては、主成分の四フッ化エチ
レンとプロピレンに加えて、これらと共重合可能な成
分、例えば、エチレン、ブテン−１、フッ化ビニリデ
ン、フッ化ビニル、ヘキサフルオロプロペン等を含んで
いてもよい。エチレン−四フッ化エチレン系共重合体の
エチレン／四フッ化エチレンの含有モル比としては、２
０／８０〜７０／３０、特に４０／６０〜６０／４０で
あることが耐熱性の点から好ましい。Unburned tetrafluoroethylene used in the present invention
As the propylene-based copolymer, in addition to the main components tetrafluoroethylene and propylene, components copolymerizable with them, for example, ethylene, butene-1, vinylidene fluoride, vinyl fluoride, hexafluoropropene, etc. May be included. The ethylene / tetrafluoroethylene content molar ratio of the ethylene-tetrafluoroethylene copolymer is 2
From the viewpoint of heat resistance, it is preferably 0/80 to 70/30, particularly 40/60 to 60/40.
【０００９】一般的な四フッ化エチレン−プロピレン系
共重合体は、四フッ化エチレンとプロピレンとを重合
後、焼成されるが、本発明に用いる四フッ化エチレン−
プロピレン系共重合体は未焼成でなければならない。未
焼成四フッ化エチレン−プロピレン系共重合体として
は、例えば旭硝子社製アフラス１００Ｎが挙げられる。A general tetrafluoroethylene-propylene copolymer is obtained by polymerizing ethylene tetrafluoride and propylene and then calcined.
The propylene-based copolymer must be unfired. Examples of the unsintered tetrafluoroethylene-propylene-based copolymer include Aflas 100N manufactured by Asahi Glass Co., Ltd.
【００１０】未焼成四フッ化エチレン−プロピレン系共
重合体は、エチレン−四フッ化エチレン系共重合体１０
０重量部に対して、１０〜１４０重量部配合される。四
フッ化エチレン−プロピレン系共重合体の配合量が、１
０重量部よりも少ないと可撓性が低下する傾向にある。
また１４０重量部よりも多いと、耐磨耗特性が低下する
傾向にある。The unsintered tetrafluoroethylene-propylene copolymer is the ethylene-tetrafluoroethylene copolymer 10.
10 to 140 parts by weight are mixed with 0 parts by weight. The compounding amount of the tetrafluoroethylene-propylene-based copolymer is 1
If the amount is less than 0 parts by weight, flexibility tends to decrease.
If it is more than 140 parts by weight, the abrasion resistance tends to deteriorate.
【００１１】本発明に用いるエチレン−四フッ化エチレ
ン系共重合体１００重量部に対して、未焼成四フッ化エ
チレン−プロピレン系共重合体１０〜１４０重量部配合
してなる組成物には、本発明の目的を損なわない程度に
安定剤、充填剤、酸化防止剤、滑剤等を配合してもよ
い。A composition prepared by blending 10 to 140 parts by weight of an unsintered tetrafluoroethylene-propylene-based copolymer with 100 parts by weight of the ethylene-tetrafluoroethylene-based copolymer used in the present invention, Stabilizers, fillers, antioxidants, lubricants and the like may be added to such an extent that the object of the present invention is not impaired.
【００１２】本発明における被覆層は、架橋されていな
ければならない。架橋されていないと、耐磨耗特性に劣
る傾向にある。架橋方法としては、電子線を照射させる
方法、有機過酸化物で架橋する方法等いずれも適用でき
るが、耐熱性、生産効率の点で電子線照射架橋が好まし
い。電子線照射架橋の電子線の照射量は、通常２〜１０
Ｍｒａｄ程度でよい。また、有機過酸化物としては、ジ
クミルパーオキサイド等の公知の有機過酸化物を用いる
ことができる。The coating layer in the present invention must be crosslinked. If it is not crosslinked, the abrasion resistance tends to be poor. As the cross-linking method, any of a method of irradiating with an electron beam and a method of cross-linking with an organic peroxide can be applied, but electron-beam irradiating cross-linking is preferable in terms of heat resistance and production efficiency. The irradiation amount of electron beams for electron beam irradiation crosslinking is usually 2 to 10
It may be about Mrad. As the organic peroxide, known organic peroxides such as dicumyl peroxide can be used.
【００１３】本発明のフッ素樹脂絶縁電線は、耐熱性、
耐磨耗性、耐油性、可撓性を有するのでモーター用口出
線、自動車用電線、車輌用電線、特にエンジン近傍で使
用される自動車用電線等の機器用絶縁電線に最適であ
る。The fluororesin-insulated electric wire of the present invention has heat resistance,
Since it has abrasion resistance, oil resistance, and flexibility, it is most suitable as a lead wire for motors, an electric wire for automobiles, an electric wire for vehicles, particularly an insulated electric wire for equipment such as an electric wire for automobiles used near an engine.
【００１４】（実施例１、２）表１に示す各成分をニー
ダを用いて溶融混練し、該組成物をダイス３２５℃、、
シリンダー２７０℃に設定した押出機を用いて、０．５
ｍｍ2 の導体に厚さ０．３５ｍｍの被覆層を形成した
後、５Ｍｒａｄで電子線照射し、架橋フッ素樹脂絶縁電
線を得た。(Examples 1 and 2) Each component shown in Table 1 was melt-kneaded using a kneader, and the composition was diced at 325 ° C.,
With the extruder set to 270 ° C. cylinder, 0.5
After forming a 0.35 mm-thick coating layer on the conductor of mm 2 , electron beam irradiation was performed at 5 Mrad to obtain a crosslinked fluororesin-insulated electric wire.
【００１５】[0015]
【表１】 [Table 1]
【００１６】上記のようにして製造された各供試例の絶
縁電線の初期引張特性、耐熱性、耐油性、耐磨耗特性、
カットスルー特性を調査した。The initial tensile properties, heat resistance, oil resistance, and wear resistance of the insulated wires of the respective test examples manufactured as described above,
The cut-through characteristics were investigated.
【００１７】初期特性 上記各絶縁電線の導体を引き抜いた後、該被覆層につい
て、抗張力、モジュラス１００％，伸び率について測定
を行った。Initial Properties After pulling out the conductor of each insulated wire, the tensile strength, modulus 100%, and elongation of the coating layer were measured.
【００１８】耐熱性試験 上記各絶縁電線の導体を引き抜き、該被覆層をギアオー
ブン中で、２５０℃で、１０日老化試験を行った後、老
化後の抗張力、伸び率の残率について測定を行った。Heat resistance test The conductor of each insulated wire was pulled out, and the coating layer was subjected to an aging test for 10 days at 250 ° C. in a gear oven, after which the tensile strength after elongation and the residual rate of elongation were measured. went.
【００１９】耐油性試験 上記各絶縁電線をＪＡＳＯ Ｄ ６０８に準じて、混合
油（エンジンオイル／白灯油＝１／１）中に浸漬し、５
０℃で２０時間放置後、抗張力、伸び率、膨潤による外
径増加率（膨潤度）を測定した。Oil resistance test Each of the above insulated wires was immersed in a mixed oil (engine oil / white kerosene = 1/1) in accordance with JASO D 608, and 5
After standing at 0 ° C. for 20 hours, the tensile strength, elongation rate, and outer diameter increase rate (swelling degree) due to swelling were measured.
【００２０】耐磨耗性試験 上記各絶縁電線をＪＡＳＯ Ｄ ６０８に準じて、室温
で耐磨耗性試験を行った。Abrasion resistance test The above insulated wires were subjected to an abrasion resistance test at room temperature according to JASO D 608.
【００２１】カットスルー試験 上記各絶縁電線をＵＬ Ｓｕｂｊｅｃｔ ７５８に準じ
て、室温でカットスルー試験を行った。Cut-Through Test The above insulated wires were subjected to a cut-through test at room temperature according to UL Subject 758.
【００２２】（比較例１、２）表１に示す各組成物を実
施例と同様条件で絶縁電線とし、上記の試験を行なっ
た。なお、比較例２では架橋は行わなかった。(Comparative Examples 1 and 2) Each composition shown in Table 1 was used as an insulated wire under the same conditions as in Examples, and the above test was conducted. In Comparative Example 2, crosslinking was not performed.
【００２３】[0023]
【効果】本発明におけるフッ素樹脂絶縁電線は、耐熱
性、耐磨耗性、耐油性を有し、かつ可撓性が良好であ
る。よって、狭い機器内に効率よく配線することがで
き、また配線作業が容易となり、かつ２００℃級の耐熱
性を有する絶縁電線として十分適用できる。[Effect] The fluororesin insulated electric wire according to the present invention has heat resistance, abrasion resistance, oil resistance, and good flexibility. Therefore, it is possible to efficiently perform wiring in a narrow device, facilitate wiring work, and be sufficiently applicable as an insulated wire having heat resistance of 200 ° C. class.
Claims (1)
１００重量部に対して、未焼成四フッ化エチレン−プロ
ピレン系共重合体１０〜１４０重量部配合してなる組成
物の被覆層を有し、該被覆層が架橋されていることを特
徴とするフッ素樹脂絶縁電線。1. A coating layer of a composition obtained by mixing 10 to 140 parts by weight of an unsintered tetrafluoroethylene-propylene copolymer with 100 parts by weight of an ethylene-tetrafluoroethylene copolymer. A fluororesin-insulated electric wire, wherein the coating layer is crosslinked.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5190720A JP2909576B2 (en) | 1993-07-01 | 1993-07-01 | Fluororesin insulated wire |
| US08/268,854 US5527612A (en) | 1993-07-01 | 1994-06-30 | Fluorocarbon copolymer-insulated wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5190720A JP2909576B2 (en) | 1993-07-01 | 1993-07-01 | Fluororesin insulated wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0721842A true JPH0721842A (en) | 1995-01-24 |
| JP2909576B2 JP2909576B2 (en) | 1999-06-23 |
Family
ID=16262700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5190720A Expired - Fee Related JP2909576B2 (en) | 1993-07-01 | 1993-07-01 | Fluororesin insulated wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2909576B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010186585A (en) * | 2009-02-10 | 2010-08-26 | Hitachi Cable Ltd | Fluorine-contained elastomer covered cable |
| JP2015003985A (en) * | 2013-06-20 | 2015-01-08 | 日立金属株式会社 | Fluorine-containing elastomer composition, and insulated electric wire and insulated cable each using the same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6162413B2 (en) | 2013-01-30 | 2017-07-12 | 矢崎総業株式会社 | High voltage insulated wire |
-
1993
- 1993-07-01 JP JP5190720A patent/JP2909576B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010186585A (en) * | 2009-02-10 | 2010-08-26 | Hitachi Cable Ltd | Fluorine-contained elastomer covered cable |
| JP2015003985A (en) * | 2013-06-20 | 2015-01-08 | 日立金属株式会社 | Fluorine-containing elastomer composition, and insulated electric wire and insulated cable each using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2909576B2 (en) | 1999-06-23 |
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