JPH0244610A - Power cable - Google Patents
Power cableInfo
- Publication number
- JPH0244610A JPH0244610A JP19334288A JP19334288A JPH0244610A JP H0244610 A JPH0244610 A JP H0244610A JP 19334288 A JP19334288 A JP 19334288A JP 19334288 A JP19334288 A JP 19334288A JP H0244610 A JPH0244610 A JP H0244610A
- Authority
- JP
- Japan
- Prior art keywords
- stearic acid
- stearic
- semiconductive
- layer
- added
- 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
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 229920000098 polyolefin Polymers 0.000 claims abstract description 13
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 9
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000008117 stearic acid Substances 0.000 claims abstract description 9
- 239000006229 carbon black Substances 0.000 claims abstract description 7
- 239000004020 conductor Substances 0.000 claims description 17
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000004132 cross linking Methods 0.000 claims description 2
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 claims 1
- DCXXMTOCNZCJGO-UHFFFAOYSA-N Glycerol trioctadecanoate Natural products CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 abstract description 2
- 239000004065 semiconductor Substances 0.000 abstract description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract 6
- QHSFMLMRUAFVMA-UHFFFAOYSA-N [Zn].C(CCCCCCCCCCCCCCCCC)(=O)O.[Mg].C(CCCCCCCCCCCCCCCCC)(=O)O Chemical compound [Zn].C(CCCCCCCCCCCCCCCCC)(=O)O.[Mg].C(CCCCCCCCCCCCCCCCC)(=O)O QHSFMLMRUAFVMA-UHFFFAOYSA-N 0.000 abstract 1
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 12
- 235000019359 magnesium stearate Nutrition 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- XOUQAVYLRNOXDO-UHFFFAOYSA-N 2-tert-butyl-5-methylphenol Chemical compound CC1=CC=C(C(C)(C)C)C(O)=C1 XOUQAVYLRNOXDO-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 239000003431 cross linking reagent Substances 0.000 description 2
- 238000007765 extrusion coating Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 2
- KMZHZAAOEWVPSE-UHFFFAOYSA-N 2,3-dihydroxypropyl acetate Chemical compound CC(=O)OCC(O)CO KMZHZAAOEWVPSE-UHFFFAOYSA-N 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000006232 furnace black Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は架橋ポリオレフィン絶縁型カケープルの改良に
関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to an improvement in a crosslinked polyolefin insulating capeple.
（従来の技術）
従来架橋ポリオレフィン絶縁型カケ−プルにおいては導
体上に内何半導電層、絶縁層、外部半導電層及びシース
を被覆し構成されている。(Prior Art) A conventional crosslinked polyolefin insulation type cable is constructed by covering a conductor with an inner semiconducting layer, an insulating layer, an outer semiconducting layer, and a sheath.
而してこの導体と内何半導電層との間に半導電性テープ
が巻回されているものであるが、近年コストを低減する
点から半導電性テープを省略し、導体上に直接ポリオレ
フィンに少くともカーボンブラックを添加した混和物を
押出被覆して半導電層を形成しているものである。A semiconductive tape is wound between the conductor and the inner semiconductive layer, but in recent years, in order to reduce costs, the semiconductive tape has been omitted and polyolefin has been wrapped directly onto the conductor. A semiconductive layer is formed by extrusion coating a mixture to which at least carbon black is added.
然しなから導体上に上記の混和物を押出して半導電層を
形成した場合、該混和物が導体によく密着するためこの
電力ケーブルの端末処理又は接続等の作業時において該
半導電層を取除くために多大な労力と時間を要し作業性
を著しく阻害するものであった。However, when a semiconductive layer is formed by extruding the above-mentioned mixture onto a conductor, the mixture adheres well to the conductor, making it difficult to remove the semiconductive layer during terminal processing or connection of the power cable. It required a great deal of effort and time to remove it, and it significantly impeded work efficiency.
（発明が解決しようとする課題）
本発明はかかる現状に鑑み鋭意研究を行った結果導体上
に半導電層を被覆するも、この両者の接着強度を緩和し
、前記の如く該導体より半導電層を剥離せしめるに際し
、剥離作業性を容易になしうるようにした電力ケーブル
を開発したものである。(Problems to be Solved by the Invention) As a result of intensive research in view of the current situation, the present invention covers a conductor with a semiconducting layer, but reduces the adhesive strength between the two, and as described above, the semiconductor layer is coated on the conductor. We have developed a power cable that makes it easier to peel off the layers.
（課題を解決するための手段）
本発明は導体上に半導電層及び絶縁層を被覆し、これを
架橋してなる電力ケーブルにおいて、該半導電層として
少くともカーボンブラックを含有せるポリオレフィン混
和物中のポリオレフィン１００重量部に対しステアリン
酸及びステアリン酸塩の白河れか１種又は２種以上を０
．１％〜５．ＯＸ重量部を添加した組成物にて形成した
ことを特徴とするものである。(Means for Solving the Problems) The present invention provides a power cable formed by coating a conductor with a semiconducting layer and an insulating layer and crosslinking the same, in which a polyolefin mixture containing at least carbon black is used as the semiconducting layer. One or more types of stearic acid and stearate salts are added to 100 parts by weight of the polyolefin.
．． 1%~5. It is characterized in that it is formed from a composition to which parts by weight of OX are added.
本発明において半導電層を形成するためのポリオレフィ
ンとはポリエチレン単独又はＥＰＲ。In the present invention, the polyolefin for forming the semiconductive layer is polyethylene alone or EPR.
ＥＶＡ、ＥＥＡ、ＥＡＡ等のポリオレフィン共重合体で
ある。These are polyolefin copolymers such as EVA, EEA, and EAA.
またカーボンブラックは導電性を附与するためのもので
あり、例えばアセチレンブラック、ファーネスブラック
等を使用する。Further, carbon black is used to impart conductivity, and for example, acetylene black, furnace black, etc. are used.
又本発明の半導電層として特にステアリン酸又はステア
リン酸塩を使用するものである。このステアリン酸又は
ステアリン酸塩は例えばステアリン酸マグネシウム、ス
テアリン酸亜鉛、ステアリン酸カルシウム等をカーボン
ブラックを含有するポリオレフィン混和物に添加するも
のであるが、その理由は導体と半導電層との界面に上記
のステアリン酸又はステアリン酸塩が露出してこの両者
間の接着強度を緩和し剥離を容易にするものと考えられ
る。Furthermore, stearic acid or stearate salts are particularly used as the semiconductive layer of the present invention. This stearic acid or stearate salt, for example, magnesium stearate, zinc stearate, calcium stearate, etc., is added to the polyolefin mixture containing carbon black. It is thought that the stearic acid or stearate salt is exposed to relax the adhesive strength between the two and facilitate peeling.
なおステアリン酸又はステアリン酸塩の添加量を０．１
〜５．０重量部に限定したが、０．１重量部未満の場合
には導体との接着力が大きく、半導電層の剥離に強力を
要し且つ剥離後に導体面に半導電層の一部が残存する。Note that the amount of stearic acid or stearate salt added is 0.1
Although the amount was limited to ~5.0 parts by weight, if it is less than 0.1 parts by weight, the adhesive force with the conductor is large, and strength is required to peel off the semiconducting layer, and after peeling, part of the semiconducting layer does not appear on the conductor surface. Some parts remain.
又５．０重量部を超えた場合には半導電層の押出成形時
において押出機内又はクロスヘツド内にて半導電性組成
物がスリップし安定して成形出来ないためである。If the amount exceeds 5.0 parts by weight, the semiconductive composition will slip inside the extruder or crosshead during extrusion molding of the semiconductive layer, making stable molding impossible.
又本発明における組成物としては上記の他架橋剤、抗酸
化剤を適宜添加してもよい。In addition to the above, crosslinking agents and antioxidants may be appropriately added to the composition of the present invention.
（実施例）
実施例（１）
１５０ｍｚ２の導体上にＥＶＡ１００重量部、アセチン
ブラック６０重量部、ステアリン酸マグネシウム ０．
５重量部、Ｄ、 Ｃ，Ｐ １．５重量部、４−４′
−６−ターシャリブチル３メチルフエノール０．３重量
部を夫々添加した組成物を厚さ ｌ 、 Ｏｍｍに押出
被覆して半導電層を形成し、その外側に架橋剤を含有せ
るポリエチレンによる絶縁層を設けて本発明型カケープ
ルをえた。(Example) Example (1) 100 parts by weight of EVA, 60 parts by weight of acetin black, 0.0 parts by weight of magnesium stearate on a 150 mz2 conductor.
5 parts by weight, D, C, P 1.5 parts by weight, 4-4'
- A semiconductive layer is formed by extrusion coating a composition to which 0.3 parts by weight of 6-tert-butyl 3-methylphenol is added to a thickness of 1 Omm, and an insulating layer made of polyethylene containing a crosslinking agent on the outside thereof. The capacitor of the present invention was obtained by providing the following.
実施例（２）
実施例（１）におけるステアリン酸マグネシウムの添加
量を１．０重量部とした以外はすべて実施例（１）と同
様にして本発明型カケープルをえた。Example (2) A capsule of the present invention was obtained in the same manner as in Example (1) except that the amount of magnesium stearate added in Example (1) was changed to 1.0 parts by weight.
実施例（３）
実施例（１）におけるステアリン酸マグネシウムに代え
てステアリン酸亜鉛ａ、ｏ−１ｉ＝部とした以外はすべ
て実施例（１）と同様にして本発明型カケープルをえた
。Example (3) A capsule of the present invention was obtained in the same manner as in Example (1) except that magnesium stearate in Example (1) was replaced with zinc stearate a, o-1i=part.
比較例（１）
実施例（１）におけるステアリン酸マグネシウムを添加
せずに組成物を作成した以外はすべて実施例（１）と同
様にして比較例電力ケーブルをえた。Comparative Example (1) A comparative power cable was obtained in the same manner as in Example (1) except that the composition was prepared without adding magnesium stearate.
比較例（２）
実施例（１）におけるステアリン酸マグネシウムの添加
量を０．０５重量部とした以外はすべて実施例（１）と
同様にして比較例電力ケーブルをえた。Comparative Example (2) A comparative power cable was obtained in the same manner as in Example (1) except that the amount of magnesium stearate added in Example (1) was changed to 0.05 parts by weight.
斯くしてえた本発明型カケープル及び比較例電力ケーブ
ルについて半導電層の剥離試験を行った。A peel test of the semiconducting layer was conducted on the cable cable of the present invention and the power cable of the comparative example thus obtained.
その結果は第１表に示す通りである。The results are shown in Table 1.
第 １ 表
註 ○ 導体上に半導電層が接着せず、完全に剥離した
。Notes to Table 1 ○ The semiconducting layer did not adhere to the conductor and was completely peeled off.
△ 導体上に半導電層がイ争に接着して残存した。△ The semiconducting layer adhered and remained on the conductor.
× 導体上に半導電層が接着して残存した。× The semiconducting layer adhered and remained on the conductor.
（発明の効果）
以上詳述した如く本発明型カケープルによればケーブル
の端末処理又は接続作業において導体面より半導電層を
剥離するに際し該導体面に半導電層が残存することなく
、きれいに剥離しうるため、上記の端末処理又は接続作
業を容易に行いうる等工業上極めて有用である。(Effects of the Invention) As detailed above, according to the cable of the present invention, when a semiconducting layer is peeled off from a conductor surface during cable terminal processing or connection work, the semiconducting layer can be peeled off cleanly without remaining on the conductor surface. Therefore, it is extremely useful industrially, as the terminal processing or connection work described above can be easily performed.
Claims (1)
なる電力ケーブルにおいて、該半導電層として少くとも
カーボンブラックを含有せるポリオレフィン混和物中の
ポリオレフィン１００重量部に対しステアリン酸及びス
テアリン酸塩の内何れか１種又は２種以上を０．１〜５
．０重量部を添加した組成物にて形成したことを特徴と
する電力ケーブル。In a power cable formed by coating a conductor with a semiconductive layer and an insulating layer and crosslinking the same, stearic acid and stearin are added to 100 parts by weight of a polyolefin in a polyolefin mixture containing at least carbon black as the semiconductive layer. 0.1 to 5 of any one or two or more of the acid salts
．． A power cable characterized in that it is formed from a composition containing 0 parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19334288A JPH0244610A (en) | 1988-08-04 | 1988-08-04 | Power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19334288A JPH0244610A (en) | 1988-08-04 | 1988-08-04 | Power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0244610A true JPH0244610A (en) | 1990-02-14 |
Family
ID=16306301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19334288A Pending JPH0244610A (en) | 1988-08-04 | 1988-08-04 | Power cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0244610A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8039749B2 (en) * | 2008-07-31 | 2011-10-18 | Sumitomo Electric Industries, Ltd. | Differential transmission signal cable and composite cable containing the same |
-
1988
- 1988-08-04 JP JP19334288A patent/JPH0244610A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8039749B2 (en) * | 2008-07-31 | 2011-10-18 | Sumitomo Electric Industries, Ltd. | Differential transmission signal cable and composite cable containing the same |
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