JPH0314741Y2 - - Google Patents
Info
- Publication number
- JPH0314741Y2 JPH0314741Y2 JP8986584U JP8986584U JPH0314741Y2 JP H0314741 Y2 JPH0314741 Y2 JP H0314741Y2 JP 8986584 U JP8986584 U JP 8986584U JP 8986584 U JP8986584 U JP 8986584U JP H0314741 Y2 JPH0314741 Y2 JP H0314741Y2
- Authority
- JP
- Japan
- Prior art keywords
- tetrafluoroethylene
- intermediate layer
- copolymer
- propylene copolymer
- insulating 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.)
- Expired
Links
- 229920006172 Tetrafluoroethylene propylene Polymers 0.000 claims description 21
- 239000004020 conductor Substances 0.000 claims description 11
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 claims description 11
- 239000011342 resin composition Substances 0.000 claims description 5
- 239000010410 layer Substances 0.000 description 34
- 238000004132 cross linking Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229920001577 copolymer Polymers 0.000 description 4
- 239000003431 cross linking reagent Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 150000002978 peroxides Chemical class 0.000 description 4
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 4
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 3
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 description 2
- 150000003923 2,5-pyrrolediones Chemical class 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical group C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 125000005907 alkyl ester group Chemical group 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- PPQREHKVAOVYBT-UHFFFAOYSA-H dialuminum;tricarbonate Chemical compound [Al+3].[Al+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O PPQREHKVAOVYBT-UHFFFAOYSA-H 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- NSGXIBWMJZWTPY-UHFFFAOYSA-N 1,1,1,3,3,3-hexafluoropropane Chemical compound FC(F)(F)CC(F)(F)F NSGXIBWMJZWTPY-UHFFFAOYSA-N 0.000 description 1
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 1
- MFEVGQHCNVXMER-UHFFFAOYSA-L 1,3,2$l^{2}-dioxaplumbetan-4-one Chemical compound [Pb+2].[O-]C([O-])=O MFEVGQHCNVXMER-UHFFFAOYSA-L 0.000 description 1
- BJELTSYBAHKXRW-UHFFFAOYSA-N 2,4,6-triallyloxy-1,3,5-triazine Chemical compound C=CCOC1=NC(OCC=C)=NC(OCC=C)=N1 BJELTSYBAHKXRW-UHFFFAOYSA-N 0.000 description 1
- DMWVYCCGCQPJEA-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane Chemical compound CC(C)(C)OOC(C)(C)CCC(C)(C)OOC(C)(C)C DMWVYCCGCQPJEA-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 1
- 229910000003 Lead carbonate Inorganic materials 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 229940118662 aluminum carbonate Drugs 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000006231 channel black Substances 0.000 description 1
- 238000010382 chemical cross-linking Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000006232 furnace black Substances 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 230000005865 ionizing radiation Effects 0.000 description 1
- 229910000464 lead oxide Inorganic materials 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
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920006149 polyester-amide block copolymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は絶縁電線、特に耐熱性及び可撓性を供
えた絶縁電線に関するものである。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an insulated wire, particularly an insulated wire having heat resistance and flexibility.
含ふつ素エラストマ共重合体、特にテトラフル
オロエチレン−プロピレン系共重合体は耐熱性、
耐薬品性、耐油性が優れている上に電気絶縁性も
優れており、耐熱可撓電線の絶縁体として使用さ
れつつある。
Fluorine-containing elastomer copolymers, especially tetrafluoroethylene-propylene copolymers, have heat resistance,
It has excellent chemical resistance, oil resistance, and electrical insulation, and is being used as an insulator for heat-resistant flexible electric wires.
テトラフルオロエチレン−プロピレン系共重合
体を用いて耐熱可撓電線を得る方法としては、撚
線導体の外周にパーオキサイドを架橋剤として添
加したテトラフルオロエチレン−プロピレン系共
重合体を押出被覆し、次いで加熱架橋せしめるの
が一般的である。 A method for obtaining a heat-resistant flexible electric wire using a tetrafluoroethylene-propylene copolymer involves extrusion coating the outer periphery of a stranded wire conductor with a tetrafluoroethylene-propylene copolymer to which peroxide is added as a crosslinking agent. It is common to then crosslink by heating.
しかし、この場合パーオキサイドの分解によつ
て発生する揮発成分が架橋絶縁体内に発泡や亀裂
を生じさせることになる。 However, in this case, volatile components generated by the decomposition of peroxide cause foaming and cracks within the crosslinked insulator.
これを防止するため圧力媒体、例えばスチーム
や窒素ガス等の加圧雰囲気中で加熱架橋を行うこ
とになるが、この際の圧力によつて撚線導体の素
線間隙へ絶縁体がめりこむことになる。 To prevent this, heating crosslinking is performed in a pressurized atmosphere of a pressure medium such as steam or nitrogen gas, but the pressure at this time may cause the insulator to sink into the gaps between the strands of the stranded conductor. Become.
このめりこみ防止対策として導体と絶縁層との
間に中間層として、ポリエステル類、ポリアミド
類等の耐熱性材料からなるテープを介在させるこ
とが提案されている。 As a measure to prevent this sinking, it has been proposed to interpose a tape made of a heat-resistant material such as polyester or polyamide as an intermediate layer between the conductor and the insulating layer.
しかしながら、これらのテープはテトラフルオ
ロエチレン−プロピレン系共重合体よりなる絶縁
層とは融着しないので、端末加工がめんどうであ
り、また、絶縁層との耐熱協調（連続使用温度：
200℃）をとるのが困難である。 However, these tapes do not fuse with the insulating layer made of tetrafluoroethylene-propylene copolymer, so terminal processing is troublesome, and heat resistance coordination with the insulating layer (continuous use temperature:
200℃) is difficult to maintain.
本考案は上記に基づいてなされたものであり、
端末加工が容易であり、また中間層と絶縁層との
耐熱協調がとれた耐熱可撓絶縁電線の提供を目的
とするものである。
This invention was made based on the above,
The object of the present invention is to provide a heat-resistant flexible insulated wire that is easy to process at the end and that has heat-resistant coordination between an intermediate layer and an insulating layer.
本考案の絶縁電線は、中間層をテトラフルオロ
エチレン−プロピレン系共重合体とエチレン−テ
トラフルオロエチレン共重合体を含有する樹脂組
成物により形成したことを特徴とするものであ
る。
The insulated wire of the present invention is characterized in that the intermediate layer is formed of a resin composition containing a tetrafluoroethylene-propylene copolymer and an ethylene-tetrafluoroethylene copolymer.
本考案において絶縁層として使用されるテトラ
フルオロエチレン−プロピレン系共重合体として
は、主成分のテトラフルオロ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、イソブチレン、アクリル酸及びそ
のアルキルエステル、メタクリル酸及びそのアル
キルエステル、ふつ化ビニル、ふつ化ビニリデ
ン、ヘキサフルオロプロパン等を適当に含有せし
めたものであつてもよい。
In addition to the main components of tetrafluoroethylene and propylene, the tetrafluoroethylene-propylene copolymer used as the insulating layer in the present invention includes components copolymerizable with these, such as ethylene, isobutylene, acrylic acid, and The alkyl ester thereof, methacrylic acid and its alkyl ester, vinyl fluoride, vinylidene fluoride, hexafluoropropane, etc. may be appropriately contained therein.
かかる共重合体において、テトラフルオロエチ
レン／プロピレンの含有モル比としては95／５〜
30／70、特に90／10〜45／55の範囲から選定する
ことが耐熱性、成形性等の面から好ましい。また
テトラフルオロエチレン−プロピレン共重合体は
数平均分子量が２万〜10万、好ましくは３万〜５
万のものを使用するのがよい。テトラフルオロエ
チレン−プロピレン系共重合体の被覆層は架橋さ
れる必要があり、架橋方法としては化学架橋剤の
添加による加熱架橋があげられる。 In such a copolymer, the molar ratio of tetrafluoroethylene/propylene is 95/5 to 95/5.
It is preferable to select from the range of 30/70, particularly 90/10 to 45/55, from the viewpoint of heat resistance, moldability, etc. In addition, the tetrafluoroethylene-propylene copolymer has a number average molecular weight of 20,000 to 100,000, preferably 30,000 to 50,000.
It is better to use 10,000 things. The coating layer of the tetrafluoroethylene-propylene copolymer needs to be crosslinked, and examples of the crosslinking method include heating crosslinking by adding a chemical crosslinking agent.
特に架橋のイオン性不純物の残留防止の観点か
らパーオキサイドによる架橋が好ましく採用可能
であり、この場合の架橋剤としては、ジクミルパ
ーオキサイド、ジ−ｔ−ブチルパーオキサイド、
ジベンゾイルパーオキサイド、２，５−ジメチル
−２，５−ジ（ｔ−ブチルパーオキシ）ヘキサン
等があげられる。架橋剤の使用量は四ふつ化エチ
レン−プロピレン共重合体100重量部に対して0.1
〜10重量部、好ましくは0.5〜５重量部である。 In particular, from the viewpoint of preventing residual ionic impurities during crosslinking, crosslinking using peroxide can be preferably employed, and in this case, the crosslinking agent may include dicumyl peroxide, di-t-butyl peroxide,
Examples include dibenzoyl peroxide, 2,5-dimethyl-2,5-di(t-butylperoxy)hexane, and the like. The amount of crosslinking agent used is 0.1 parts by weight per 100 parts by weight of tetrafluoroethylene-propylene copolymer.
~10 parts by weight, preferably 0.5 to 5 parts by weight.
また、架橋助剤の併用が可能であり、アリル化
合物、硫黄、有機アミン類、マレイミド類、メタ
クリレート類、ジビニル化合物等が採用できる。
架橋助剤の添加量は、テトラフルオロエチレン−
プロピレン系共重合体100重量部に対して0.1〜20
重量部、好ましくは0.2〜10重量部である。更に、
上記成分以外にMTカーボンやFTカーボン等の
カーボンブラツク、タルク、クレー、無水ケイ酸
といつた充填剤、その他補強剤、滑剤、酸化防止
剤、安定剤等を配合してもよい。 Further, a crosslinking aid can be used in combination, and allyl compounds, sulfur, organic amines, maleimides, methacrylates, divinyl compounds, etc. can be used.
The amount of crosslinking aid added is tetrafluoroethylene-
0.1 to 20 per 100 parts by weight of propylene copolymer
parts by weight, preferably 0.2 to 10 parts by weight. Furthermore,
In addition to the above components, carbon black such as MT carbon and FT carbon, fillers such as talc, clay, and silicic anhydride, reinforcing agents, lubricants, antioxidants, stabilizers, etc. may be added.
本願考案では、導体と絶縁層との間の中間層
を、テトラフルオロエチレン−プロピレン系共重
合体とエチレン−テトラフルオロエチレン共重合
体とのブレンド組成物を用いて形成することに特
徴があり、これによつて、中間層と絶縁層とが融
着して端末処理が容易であり、かつ、可撓性およ
び引張り等の機械的強度に優れた中間層を実現で
きる。 The present invention is characterized in that the intermediate layer between the conductor and the insulating layer is formed using a blend composition of a tetrafluoroethylene-propylene copolymer and an ethylene-tetrafluoroethylene copolymer, As a result, the intermediate layer and the insulating layer are fused together, making it possible to easily process the ends of the intermediate layer and to realize an intermediate layer having excellent flexibility and mechanical strength such as tensile strength.
すなわち、テトラフルオロエチレン−プロピレ
ン系共重合体の使用により絶縁層との融着および
可撓性の付与をはかることができ、エチレン−テ
トラフルオロエチレン共重合体の使用により機械
的強度の向上をはかることができる。 That is, by using a tetrafluoroethylene-propylene copolymer, it is possible to fuse with the insulating layer and impart flexibility, and by using an ethylene-tetrafluoroethylene copolymer, it is possible to improve mechanical strength. be able to.
中間層を形成するテトラフルオロエチレン−プ
ロピレン系共重合体は、上記した絶縁層を形成す
るテトラフルオロエチレン−プロピレン系共重合
体と同様のものを使用できる。 The tetrafluoroethylene-propylene copolymer forming the intermediate layer may be the same as the tetrafluoroethylene-propylene copolymer forming the above-mentioned insulating layer.
エチレン−テトラフルオロエチレン共重合体は
優れた機械的強度の成形品を実現できることが知
られており、これをテトラフルオロエチレン−プ
ロピレン系共重合体に加えることにより、機械的
強度の向上をはかることができる。エチレン−テ
トラフルオロエチレン共重合体としては特に規定
しないが、強度、加工性のバランスからメルトイ
ンデツクスが0.1〜50ｇ／10分の範囲のものが好
ましい。テトラフルオロエチレン−プロピレン共
重合体／エチレン−テトラフルオロエチレン共重
合体の含有重量比は、得られる中間層の機械的強
度および可撓性を考慮すると20／80〜80／20の範
囲から選定するのが好ましくエチレン−テトラフ
ルオロエチレン共重合体の含有量が少なすぎると
機械的強度が小さくなり、多すぎると中間層と絶
縁層とが融着しにくくなる。テトラフルオロエチ
レン−プロピレン系共重合体とエチレン−テトラ
フルオロエチレン共重合体との溶融ブレンドは、
前者の共重合体に後者の共重合体の粉末をその融
点以下、例えば50℃〜150℃の温度でロールやバ
ンバリミキサで混練し、次いで融点以上で成形し
てもよいし、予め後者の共重合体の融点以上の温
度でロール、バンバリー、押出機を用い、両者を
混練してもよい。 Ethylene-tetrafluoroethylene copolymer is known to be able to create molded products with excellent mechanical strength, and by adding it to tetrafluoroethylene-propylene copolymer, it is possible to improve mechanical strength. I can do it. The ethylene-tetrafluoroethylene copolymer is not particularly specified, but one having a melt index in the range of 0.1 to 50 g/10 minutes is preferred from the viewpoint of balance between strength and processability. The content weight ratio of tetrafluoroethylene-propylene copolymer/ethylene-tetrafluoroethylene copolymer is selected from the range of 20/80 to 80/20, considering the mechanical strength and flexibility of the resulting intermediate layer. Preferably, if the content of the ethylene-tetrafluoroethylene copolymer is too small, the mechanical strength will be low, and if it is too large, it will be difficult to fuse the intermediate layer and the insulating layer. The melt blend of the tetrafluoroethylene-propylene copolymer and the ethylene-tetrafluoroethylene copolymer is
The former copolymer may be kneaded with powder of the latter copolymer using a roll or Banbury mixer at a temperature below its melting point, for example, 50°C to 150°C, and then molded at a temperature above the melting point. Both may be kneaded using a roll, Banbury, or extruder at a temperature higher than the melting point of the mixture.
テトラフルオロエチレン−プロピレン系共重合
体とエチレン−テトラフルオロエチレン共重合体
を含有する樹脂組成物は、直接導体外周に押出被
覆して中間層としてもよく、また、テープに成形
してから導体外周に巻回して中間層としてもよ
い。更には、架橋してもよく架橋方法としては、
電離性放射線等の照射架橋があげられる。この場
合、照射架橋反応性を高めるために組成物に架橋
助剤を配合することも可能である。 A resin composition containing a tetrafluoroethylene-propylene copolymer and an ethylene-tetrafluoroethylene copolymer may be extruded and coated directly on the outer periphery of the conductor to form an intermediate layer, or it may be formed into a tape and then coated on the outer periphery of the conductor. It may also be wound around to form an intermediate layer. Furthermore, the crosslinking method may be as follows:
Examples include irradiation crosslinking with ionizing radiation, etc. In this case, it is also possible to incorporate a crosslinking aid into the composition in order to enhance the radiation crosslinking reactivity.
架橋助剤としては、アリル化合物、イオウ、有
機アミン類、マレイミド類、ジビニル化合物、メ
タクリレート類、ポリブタジエン等があげられる
が、特にトリアリルイソシアヌレート、トリアリ
ルシアヌレートに代表されるアリル化合物が好ま
しい。上記以外の配合剤としては、酸化カルシウ
ム、酸化マグネシウム、酸化鉛などの金属酸化
物、水酸化カルシウム、水酸化マグネシウム、水
酸化アルミニウムなどの金属水酸化物、炭酸カル
シウム、炭酸鉛、炭酸アルミニウムなどの金属炭
酸塩、更に加工性を良くするためのカーボンブラ
ツク、ケイ酸アルミニウム、ケイ酸カルシウム、
無水ケイ酸などの無機充填剤、その他安定剤、酸
化防止剤、可塑剤などがあげられる。 Examples of the crosslinking aid include allyl compounds, sulfur, organic amines, maleimides, divinyl compounds, methacrylates, polybutadiene, and particularly preferred are allyl compounds represented by triallyl isocyanurate and triallyl cyanurate. Compounding agents other than those listed above include metal oxides such as calcium oxide, magnesium oxide, and lead oxide, metal hydroxides such as calcium hydroxide, magnesium hydroxide, and aluminum hydroxide, calcium carbonate, lead carbonate, and aluminum carbonate. Metal carbonates, carbon black for better processability, aluminum silicate, calcium silicate,
Examples include inorganic fillers such as silicic anhydride, other stabilizers, antioxidants, and plasticizers.
また、チヤンネルブラツクやフアーネスブラツ
ク等の導電性付与剤を配合して中間層に導電性を
付与することにより、高電圧ケーブルへの適用が
可能となる。 Furthermore, by blending a conductivity imparting agent such as channel black or furnace black to impart conductivity to the intermediate layer, it becomes possible to apply it to high voltage cables.
添付図面は本考案の一実施例の断面説明図であ
り、１は撚線導体、２は中間層、３は絶縁層であ
る。
The attached drawing is a cross-sectional view of one embodiment of the present invention, in which 1 is a stranded conductor, 2 is an intermediate layer, and 3 is an insulating layer.
（中間層の形成）
テトラフルオロエチレン−プロピレン共重合体
70重量部、エチレン−テトラフルオロエチレン共
重合体30重量部よりなる樹脂組成物で厚さ0.2mm
のテープを作成し、このテープを撚線導体１の外
周に縦添えして中間層２とした。(Formation of intermediate layer) Tetrafluoroethylene-propylene copolymer
A resin composition consisting of 70 parts by weight and 30 parts by weight of ethylene-tetrafluoroethylene copolymer, with a thickness of 0.2 mm.
A tape was prepared, and this tape was attached vertically to the outer periphery of the stranded conductor 1 to form the intermediate layer 2.
（絶縁層の形成）
テトラフルオロエチレン／プロピレンの含有モ
ル比が55／45であり、数平均分子量が５万のテト
ラフルオロエチレン−プロピレン共重合体100重
量部に対し、ジグミルパーオキサイド１重量部、
トリアリルイソシアヌレート５重量部、MTカー
ボン40重量部、ステアリン酸ナトリウム１重量部
を配合し、温度50〜60℃に保持した８インチロー
ルにより15分間混練した。(Formation of an insulating layer) 1 part by weight of digyl peroxide for 100 parts by weight of a tetrafluoroethylene-propylene copolymer with a molar ratio of tetrafluoroethylene/propylene of 55/45 and a number average molecular weight of 50,000. ,
5 parts by weight of triallylisocyanurate, 40 parts by weight of MT carbon, and 1 part by weight of sodium stearate were blended and kneaded for 15 minutes using 8-inch rolls maintained at a temperature of 50 to 60°C.
この配合物を、ヘツド：100℃、シリンダー
１：100℃、シリンダー２：80℃に設定した40mm
φ押出機（Ｌ／Ｄ＝22）を用い、中間層２の外周
に押出被覆し、13気圧の水蒸気（約190℃）に３
分間接触せしめ加熱架橋して絶縁層３を形成し
た。 This formulation was applied to a 40mm tube set at 100°C for head, 100°C for cylinder 1, and 80°C for cylinder 2.
Using a φ extruder (L/D=22), the outer periphery of the intermediate layer 2 was extruded and coated, and then soaked in water vapor at 13 atm (approximately 190°C) for 30 minutes.
The insulating layer 3 was formed by contacting for a minute and crosslinking by heating.
かくして得られた電線の中間層２は絶縁層３と
融着し、端末加工が容易となつた。 The intermediate layer 2 of the electric wire thus obtained was fused to the insulating layer 3, making the terminal processing easier.
以上説明してきた通り、本考案によれば端末加
工が容易でありかつ耐熱協調がとれた絶縁電線が
得られるようになる。
As explained above, according to the present invention, it is possible to obtain an insulated wire that is easy to process at the end and has good heat resistance coordination.
添付図面は本考案の一実施例の断面説明図であ
る。１：導体、２：中間層、３：絶縁層。
The accompanying drawings are cross-sectional explanatory views of one embodiment of the present invention. 1: conductor, 2: intermediate layer, 3: insulating layer.
Claims (1)
ロピレン系共重合体を主体として含有する樹脂組
成物の架橋体よりなる絶縁層が設けられている絶
縁電線において、導体と絶縁層との間には中間層
が介在し、この中間層はテトラフルオロエチレン
−プロピレン系共重合体とエチレン−テトラフル
オロエチレン共重合体を含有する樹脂組成物によ
り形成されていることを特徴とする絶縁電線。 In an insulated wire in which an insulating layer made of a crosslinked resin composition mainly containing a tetrafluoroethylene-propylene copolymer is provided around the outer periphery of a stranded conductor, an intermediate layer is provided between the conductor and the insulating layer. an insulated wire, wherein the intermediate layer is formed of a resin composition containing a tetrafluoroethylene-propylene copolymer and an ethylene-tetrafluoroethylene copolymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8986584U JPS616213U (en) | 1984-06-15 | 1984-06-15 | insulated wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8986584U JPS616213U (en) | 1984-06-15 | 1984-06-15 | insulated wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS616213U JPS616213U (en) | 1986-01-14 |
| JPH0314741Y2 true JPH0314741Y2 (en) | 1991-04-02 |
Family
ID=30644344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8986584U Granted JPS616213U (en) | 1984-06-15 | 1984-06-15 | insulated wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS616213U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3084035B2 (en) * | 1990-02-22 | 2000-09-04 | 日星電気株式会社 | Heat resistant wires and cables |
-
1984
- 1984-06-15 JP JP8986584U patent/JPS616213U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS616213U (en) | 1986-01-14 |
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