JPH04104406A - Insulated wire of polyethylene-cross-linked polyethylene having good tight adhesion property - Google Patents
Insulated wire of polyethylene-cross-linked polyethylene having good tight adhesion propertyInfo
- Publication number
- JPH04104406A JPH04104406A JP2218130A JP21813090A JPH04104406A JP H04104406 A JPH04104406 A JP H04104406A JP 2218130 A JP2218130 A JP 2218130A JP 21813090 A JP21813090 A JP 21813090A JP H04104406 A JPH04104406 A JP H04104406A
- Authority
- JP
- Japan
- Prior art keywords
- polyethylene
- cross
- vinyl acetate
- ethylene
- acetate copolymer
- 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
- 229920003020 cross-linked polyethylene Polymers 0.000 title claims abstract description 14
- 239000004703 cross-linked polyethylene Substances 0.000 title claims abstract description 14
- 239000004698 Polyethylene Substances 0.000 claims abstract description 32
- 229920000573 polyethylene Polymers 0.000 claims abstract description 30
- -1 polyethylene Polymers 0.000 claims abstract description 24
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 16
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 16
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 239000004020 conductor Substances 0.000 claims abstract description 6
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 3
- 239000011248 coating agent Substances 0.000 claims abstract 2
- 238000000576 coating method Methods 0.000 claims abstract 2
- 230000001070 adhesive effect Effects 0.000 claims description 21
- 239000003063 flame retardant Substances 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 abstract description 5
- 229920000647 polyepoxide Polymers 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 2
- 229920006395 saturated elastomer Polymers 0.000 abstract description 2
- 230000003078 antioxidant effect Effects 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 230000000979 retarding effect Effects 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 15
- 239000012212 insulator Substances 0.000 description 7
- 229920001577 copolymer Polymers 0.000 description 3
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 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 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229920006113 non-polar polymer Polymers 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、自動車用耐熱低圧電線として使用されるポ
リエチレンおよび架橋ポリエチレン絶縁電線に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to polyethylene and crosslinked polyethylene insulated wires used as heat-resistant low-voltage wires for automobiles.
［従来の技術］
ポリエチレンは典型的な非極性ポリマーてあり、接着性
に乏しい材料である。しかし、物性、電気特性等に優れ
ていることから絶縁材料として幅広く使用されている。[Prior Art] Polyethylene is a typical non-polar polymer and is a material with poor adhesive properties. However, it is widely used as an insulating material because of its excellent physical properties and electrical properties.
自動車用電線の分野では、ポリエチレンに難燃剤、酸化
防止剤等を添加し、銅導体の上に押出し被覆した後、架
橋処理を行った耐熱絶縁電線（ＡＥＸ）としてイ吏用さ
れている。In the field of electrical wires for automobiles, it is used as heat-resistant insulated electrical wire (AEX), which is made by adding flame retardants, antioxidants, etc. to polyethylene, extruding it onto a copper conductor, and then crosslinking it.
［発明が解決しようとする課題］
自動車用の電線、特にエンジンルーム内の電装品の接続
等に使用する電線は、雨、汚水、洗車等の水等にさらさ
れるため、この対策として結線・接合部に防水シールド
を施しているケースが多い。この場合のシール剤として
は、種々の接着剤が使用されている。多くの場合、この
シール剤がリード線相互間、リード線と金属またはプラ
スチック間を接着して防水する機能を合せて持たせるよ
うになっている。[Problem to be solved by the invention] Electrical wires for automobiles, especially electric wires used to connect electrical components in the engine room, are exposed to rain, sewage, water from car washes, etc., so as a countermeasure to this, it is necessary to connect and bond them. In many cases, a waterproof shield is applied to the part. Various adhesives are used as the sealant in this case. In many cases, this sealant also has the function of adhering the lead wires to each other and between the lead wires and metal or plastic to make them waterproof.
ところで、ＡＥＸはポリエチレンベースて製造されてい
るため、最も接着力が大きいとされているエボギシ樹脂
系接着剤を使用してシールドしたとしても、ポリエチレ
ン絶縁電線で（Ｊ意図する接着効果が得られない不具合
があった。この為、表面をブラスト処理等の処理を行っ
て、エポキシ樹脂系接着剤を使用してシールドしている
のが現状である。By the way, since AEX is manufactured with a polyethylene base, even if it is shielded using Evogishi resin adhesive, which is said to have the highest adhesive strength, the intended adhesive effect cannot be obtained with polyethylene insulated wire (J). There was a problem.For this reason, the current situation is to perform treatments such as blasting on the surface and use epoxy resin adhesive to shield it.
この発明は、このような点に鑑みてなされたもので、上
述した従来技術の欠点を解消し、エポキシ樹脂系接着剤
との接着性に優れた自動車用耐熱電線を提供することを
目的とする。The present invention has been made in view of the above points, and aims to eliminate the drawbacks of the above-mentioned prior art and provide a heat-resistant electric wire for automobiles that has excellent adhesiveness with epoxy resin adhesives. .
［課題を解決するための手段および作用］この発明のポ
リエチレン・架橋ポリエチレン電線は、絶縁体を内外２
層構造とし、内層には従来のポリエチレンまたは架橋ポ
リエチレンを被覆し、この外周に接着性に優れたポリエ
チレン、酢酸ビニルの共重合体を主体とする配合物を被
覆する。これによりポリエチレン本来の特徴を何ら損う
ことなくエポキシ樹脂系接着剤との接着性を大幅に向上
させることが可能となる。[Means and effects for solving the problem] The polyethylene/crosslinked polyethylene electric wire of the present invention has an insulator on both the inside and outside.
It has a layered structure, and the inner layer is coated with conventional polyethylene or crosslinked polyethylene, and the outer periphery is coated with a blend mainly composed of a copolymer of polyethylene and vinyl acetate, which has excellent adhesive properties. This makes it possible to significantly improve the adhesiveness with epoxy resin adhesives without impairing the inherent characteristics of polyethylene.
［実 施 例］
以下、図面に基づいてこの発明の詳細な説明する。第１
図は、一実施例のポリエチレン 架橋ポリエチレン絶縁
電線の構成を示す横断面図である。即ち、中央の導体１
上にポリエチレン絶縁体を押出被覆して内層２、あるい
はこのポリエチレン絶縁体を架橋して架橋ポリエチレン
絶縁体２とし、さらにこの外周に外層３を被覆して構成
される。この外層３の厚さは、全体の１０〜５０％を占
める割合で被覆される。[Example] Hereinafter, the present invention will be described in detail based on the drawings. 1st
The figure is a cross-sectional view showing the configuration of a polyethylene crosslinked polyethylene insulated wire according to an example. That is, the central conductor 1
An inner layer 2 is formed by extrusion coating a polyethylene insulator thereon, or a crosslinked polyethylene insulator 2 is formed by crosslinking this polyethylene insulator, and an outer layer 3 is further formed around the outer periphery of the crosslinked polyethylene insulator 2. The thickness of this outer layer 3 covers 10 to 50% of the total thickness.
この外層３は、ポリエチレン（ＰＥ）とエチレン−酢酸
ビニルコポリマー（ＥＶＡ）のブレンド比がポリエチレ
ン（ＰＥ）１００に対しエチレン−酢酸ビニルコポリマ
ー（ＥＶＡ）１０〜５０とする。In this outer layer 3, the blend ratio of polyethylene (PE) and ethylene-vinyl acetate copolymer (EVA) is 10 to 50 to 100 of polyethylene (PE).
これは、ブレンド比と接着力の特性が第２図の特性図に
示すように、エチレン−酢酸ビニルコボノマーのブレン
ド比が５０以上でほぼ接着力が飽和し、かつ第１表に示
すようにエチレン−酢酸ビニルコポリマ＝（ＥＶＡ）量
が絶縁抵抗が５０部を越えると絶縁抵抗に著しい低下が
みられることによる。即ち、第２図において、エチレン
−酢酸コポリマー（ＥＶＡ）が０の場合の接着力（約１
ｋｇ）に対し、５倍以上の接着力が期待でき、かつ、ポ
リエチレン（ＰＥ）の特性を何ら損うことがないエチレ
ン−酢酸ビニルコポリマー（ＥＶＡ）量を特性図から１
０〜５０としたものである。This is because the blend ratio and adhesive strength characteristics are as shown in the characteristic diagram in Figure 2, and the adhesive strength is almost saturated when the blend ratio of ethylene-vinyl acetate cobonomer is 50 or more, and as shown in Table 1, ethylene-vinyl acetate cobonomer is This is because when the amount of vinyl acetate copolymer (EVA) exceeds 50 parts of insulation resistance, a significant decrease in insulation resistance is observed. That is, in FIG. 2, the adhesive strength when the ethylene-acetic acid copolymer (EVA) is 0 (approximately 1
kg), the amount of ethylene-vinyl acetate copolymer (EVA) that can be expected to have an adhesive strength of 5 times or more and that does not impair the properties of polyethylene (PE) is calculated from the characteristic diagram.
It is set as 0 to 50.
具体的な実施例を第１表に示す。この表には合せてシー
トサンプル（２ｍｍ厚）における接着力の試験結果を示
す。Specific examples are shown in Table 1. This table also shows the results of adhesion test on sheet samples (2 mm thickness).
この接着力の試験方法は、第３図に示すように厚さ２ｍ
ｍのシートサンプル４，５を接着剤で接着し、矢印で示
す剥離方向に５０ｍｍの長さに渡り引離すときに要する
力で示したものである。This adhesion test method uses a 2m thick adhesive as shown in Figure 3.
It is expressed as the force required to adhere sheet samples 4 and 5 of m with adhesive and separate them over a length of 50 mm in the peeling direction shown by the arrow.
（以下余白）
［発明の効果］
以上説明したとおり、この発明の接着性に優れたポリエ
チレン 架橋ポリエチレン絶縁電線は、ポリエチレンの
特徴を何ら損うことなく、特にエポキシ樹脂系接着剤と
の接着性に優れた絶縁電線となる。特に、自動車に使用
してシールド機能をそのまま持たせることができ、従来
必要とされたプラス１〜処理等の表面処理が不要となる
。(Left below) [Effects of the Invention] As explained above, the polyethylene cross-linked polyethylene insulated wire with excellent adhesive properties of the present invention has excellent adhesive properties, especially with epoxy resin adhesives, without impairing the characteristics of polyethylene. Makes excellent insulated wire. In particular, it can be used in automobiles to provide a shielding function as is, and surface treatments such as plus 1 treatment, which were conventionally required, are not required.
第１図は、この発明の実施例のポリエチレン架橋ポリエ
チレンの絶縁電線の構成を示す横断面図、
第２図は、ブレンド比と接着力の関係を示ずグラフ、
第３図は、接着力測定法の概要を示す側面図である。
■・・導体
２・・・ポリエチレン絶縁体あるいは難燃架橋ポリエチ
レン絶縁体（内層）
接着性に優れたポリエチレン
（外層）Fig. 1 is a cross-sectional view showing the structure of a cross-linked polyethylene insulated wire according to an embodiment of the present invention, Fig. 2 is a graph showing the relationship between blend ratio and adhesive force, and Fig. 3 is a measurement of adhesive force. It is a side view showing an outline of the law. ■...Conductor 2...Polyethylene insulator or flame-retardant cross-linked polyethylene insulator (inner layer) Polyethylene with excellent adhesiveness (outer layer)
Claims (1)
マーを５〜５０部ブレンドし、さらに適宜難燃剤，酸化
防止剤等を混合した混和物を導体の外周に押出し被覆し
たポリエチレンあるいは架橋ポリエチレン絶縁体外周に
一様に被覆したことを特徴とする接着性に優れたポリエ
チレン・架橋ポリエチレン絶縁電線。A mixture of 5 to 50 parts of ethylene-vinyl acetate copolymer blended with 100 parts of polyethylene, and further mixed with appropriate flame retardants, antioxidants, etc., is extruded and coated on the outer periphery of the conductor.Polyethylene or crosslinked polyethylene insulation is coated uniformly on the outer periphery. Polyethylene/cross-linked polyethylene insulated wire with excellent adhesive properties, characterized by its coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2218130A JPH04104406A (en) | 1990-08-21 | 1990-08-21 | Insulated wire of polyethylene-cross-linked polyethylene having good tight adhesion property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2218130A JPH04104406A (en) | 1990-08-21 | 1990-08-21 | Insulated wire of polyethylene-cross-linked polyethylene having good tight adhesion property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04104406A true JPH04104406A (en) | 1992-04-06 |
Family
ID=16715110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2218130A Pending JPH04104406A (en) | 1990-08-21 | 1990-08-21 | Insulated wire of polyethylene-cross-linked polyethylene having good tight adhesion property |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04104406A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002015626A (en) * | 2000-04-28 | 2002-01-18 | Furukawa Electric Co Ltd:The | Cable |
| JP2022040960A (en) * | 2020-08-31 | 2022-03-11 | 住友電気工業株式会社 | Core wire for multicore cable, multicore cable, and multicore cable with sensor |
-
1990
- 1990-08-21 JP JP2218130A patent/JPH04104406A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002015626A (en) * | 2000-04-28 | 2002-01-18 | Furukawa Electric Co Ltd:The | Cable |
| JP2022040960A (en) * | 2020-08-31 | 2022-03-11 | 住友電気工業株式会社 | Core wire for multicore cable, multicore cable, and multicore cable with sensor |
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