JPH076624A - Electrical insulating composition - Google Patents
Electrical insulating compositionInfo
- Publication number
- JPH076624A JPH076624A JP5172717A JP17271793A JPH076624A JP H076624 A JPH076624 A JP H076624A JP 5172717 A JP5172717 A JP 5172717A JP 17271793 A JP17271793 A JP 17271793A JP H076624 A JPH076624 A JP H076624A
- Authority
- JP
- Japan
- Prior art keywords
- electrical insulating
- weight
- parts
- inorganic filler
- ethylene
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Inorganic Insulating Materials (AREA)
- Organic Insulating Materials (AREA)
- Insulated Conductors (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、エチレン−プロピレン
（ＥＰ）ゴム系の材料をベース材料とした電気絶縁組成
物に係り、特に油雰囲気下で使用される電線、ケーブル
の絶縁体やシース材料として用いて有用な組成物に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrical insulation composition using an ethylene-propylene (EP) rubber-based material as a base material, and in particular, an electric wire or cable insulator or sheath material used in an oil atmosphere. The present invention relates to a composition useful as
【０００２】[0002]
【従来の技術】エチレン−プロピレンゴム（ＥＰＲ）や
エチレン−プロピレンジェン三元共重合体（ＥＰＤＭ）
は、耐熱性や耐候性に優れており、また、電気絶縁性も
良いことから、電線、ケーブルの絶縁体やシース材料と
して、広く使用されている。2. Description of the Related Art Ethylene-propylene rubber (EPR) and ethylene-propylene terpolymer (EPDM)
Is excellent in heat resistance and weather resistance, and also has good electric insulation, so that it is widely used as an insulator or sheath material for electric wires and cables.
【０００３】ことろが、これらのエチレン−プロピレン
ゴムやエチレン−プロピレンジェン三元共重合体は、耐
油性が劣るため、油の存在する環境下で使用される電
線、ケーブルなどの絶縁体やシース材料として用いる場
合には、耐油性を向上させるため、クレー、タルクなど
の無機充填材を多量に充填する必要があった。However, since these ethylene-propylene rubbers and ethylene-propylene gen terpolymers have poor oil resistance, they are used as insulators and sheaths for electric wires and cables used in the environment where oil is present. When used as a material, it was necessary to fill a large amount of an inorganic filler such as clay or talc in order to improve oil resistance.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、このよ
うに多量の無機充填材を添加すると、吸湿性の高い組成
物となって、電気絶縁性の低下を招き、問題があった。However, when such a large amount of the inorganic filler is added, a composition having a high hygroscopic property is formed, and the electrical insulating property is deteriorated, which is a problem.
【０００５】そこで、本発明者等が、この問題を解決す
べく、鋭意研究したところ、クレー、タルクなどの無機
充填材の添加量を少なめに抑え、これらの無機充填材と
同時にシリカおよびシランカップリング剤を特定の範囲
内で併用し、架橋させると、良好な電気絶縁組成物が得
られることを見出した。本発明は、このような観点に立
ってなされたものである。The inventors of the present invention have conducted extensive studies to solve this problem. As a result, the amount of the inorganic filler such as clay and talc added has been suppressed to a small amount, and silica and silane cup have been added together with these inorganic fillers. It has been found that a good electrical insulating composition can be obtained by using a ring agent in combination within a specific range and crosslinking. The present invention has been made from such a viewpoint.
【０００６】[0006]
【課題を解決するための手段】かゝる本発明の特徴とす
る点は、エチレン−プロピレンゴム（ＥＰＲ）および／
またはエチレン−プロピレンジェン三元共重合体（ＥＰ
ＤＭ）１００重量部、無機充填材３０〜７０重量部、シ
リカ１〜５０重量部、シランカップリング剤１〜１０重
量部からなる電気絶縁組成物にある。The features of the present invention are that ethylene-propylene rubber (EPR) and / or
Or ethylene-propylene diene terpolymer (EP
DM) 100 parts by weight, inorganic filler 30 to 70 parts by weight, silica 1 to 50 parts by weight, and silane coupling agent 1 to 10 parts by weight.
【０００７】本発明で用いられる無機充填材としては、
ハードクレーやソフトクレーなどのクレー、およびタル
クなどが挙げられ、これらを単独または併用することが
可能である。そして、その添加量を３０〜７０重量部と
したのは、３０重量部未満では絶縁抵抗性は高くなる
が、耐油性が非常に悪化するからである。また、逆に７
０重量部を越えるようになると、優れた耐油性が得られ
るものの、吸湿性が高くなって、結局絶縁性が低下する
ようになるからである。As the inorganic filler used in the present invention,
Examples include clay such as hard clay and soft clay, and talc, which can be used alone or in combination. The amount of addition is 30 to 70 parts by weight because if it is less than 30 parts by weight, the insulation resistance is high, but the oil resistance is extremely deteriorated. On the contrary, 7
When the amount exceeds 0 parts by weight, excellent oil resistance is obtained, but the hygroscopicity becomes high and the insulating property eventually decreases.
【０００８】本発明で用いられるシリカは、上記無機充
填材とシランカップリング剤との併用を前提として、当
該無機充填材の添加量を抑える働きをするものである。
そして、その添加量を１〜５０重量部としたのは、１重
量部未満では添加による耐油性の補強効果が殆ど認めら
れず、無機充填材の削減による耐油性の悪化はそのまま
残り、電気絶縁特性もよくないからである。この添加量
を増やすと、耐油性および電気絶縁特性の改善が図られ
るものの、５０重量部を越えると、組成物の硬さが非常
に硬くなり、屈曲性が低下して電線・ケーブル用として
は使用し難くなり、また、加工性も悪くなるからであ
る。The silica used in the present invention functions to suppress the addition amount of the inorganic filler, assuming that the inorganic filler and the silane coupling agent are used in combination.
And, the addition amount is set to 1 to 50 parts by weight, when the addition amount is less than 1 part by weight, the effect of reinforcing the oil resistance due to the addition is hardly recognized, the deterioration of the oil resistance due to the reduction of the inorganic filler remains as it is, and the electrical insulation This is because the characteristics are not good. If the amount added is increased, the oil resistance and electrical insulation properties are improved, but if it exceeds 50 parts by weight, the hardness of the composition becomes extremely hard and the flexibility decreases, so that it is not suitable for electric wires and cables. This is because it becomes difficult to use and the workability also deteriorates.
【０００９】本発明で用いられるシランカップリング剤
としては、ビニル基、メルカプト基、アミノ基など、何
れの官能基を含むものでもよく、例えば次のものが挙げ
られる。ビニルトリエトキシシラン、ビニルトリアセチ
ルシランなどのビニルシラン、β−（３，４−エポキシ
シクロヘキシル）エチルトリメトキシシランなどのエポ
キシシラン、γ−メルカプトプロピルトリメトキシシラ
ンなどのメルカプトシラン、γ−アミノプロピルトリメ
トキシシランなどのアミノシランなどである。これらの
シランカップリング剤の添加量を１〜１０重量部とした
のは、１重量部未満では全く添加の効果が現れず、１０
重量部を越えると、加工性が悪化するからである。The silane coupling agent used in the present invention may contain any functional group such as a vinyl group, a mercapto group and an amino group, and examples thereof include the following. Vinylsilane such as vinyltriethoxysilane and vinyltriacetylsilane, epoxysilane such as β- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, mercaptosilane such as γ-mercaptopropyltrimethoxysilane, and γ-aminopropyltrimethoxy. Examples include aminosilane such as silane. The amount of addition of these silane coupling agents is set to 1 to 10 parts by weight because the effect of addition does not appear at all if less than 1 part by weight.
This is because if it exceeds the weight part, the workability deteriorates.
【００１０】このような配合からなる本発明の組成物で
は、その使用にあたって、架橋させるわけであるが、そ
の架橋剤としては、有機過酸化物が用いられる。この有
機過酸化物としては、例えばジクミルパーオキサイド
（ＤＣＰ）、２，５−ジメチル−２，５−ジ（ｔ−ブチ
ルペルオキシ）ヘキシン−３などが挙げられる。また、
スムーズに架橋させ、架橋効率を上げるには、トリアリ
ルシアヌレートや、Ｎ，Ｎ′−ｍ−フェニレンビスマレ
イド、トリメチロールプロペントリメタアクリレートな
どの架橋助剤を使用するとよい。In the composition of the present invention having such a composition, the composition is crosslinked when used, and an organic peroxide is used as the crosslinking agent. Examples of the organic peroxide include dicumyl peroxide (DCP) and 2,5-dimethyl-2,5-di (t-butylperoxy) hexyne-3. Also,
In order to smoothly crosslink and increase the crosslinking efficiency, it is preferable to use triallyl cyanurate, a crosslinking aid such as N, N'-m-phenylene bismaleide, trimethylolpropene trimethacrylate and the like.
【００１１】また、本発明では、必要に応じて、種々の
添加剤、例えば加工助剤、老化防止剤、顔料などを添加
することができる。Further, in the present invention, various additives such as a processing aid, an antioxidant and a pigment can be added as required.
【００１２】[0012]
【作用】このように本発明では、無機充填材の添加量を
少なめに抑え（最高でも７０重量部）、この少なめに抑
えた無機充填材に対して、シリカを１〜５０重量部、お
よびシランカップリング剤を１〜１０重量部の範囲内で
併用し、架橋させて、目的の電気絶縁組成物を得る。こ
のときの架橋条件としては、例えば、１５０℃で２０〜
４０分である。これにより、良好な電気絶縁組成物が得
られる。As described above, according to the present invention, the addition amount of the inorganic filler is suppressed to a small amount (70 parts by weight at the maximum), and 1 to 50 parts by weight of silica and silane are added to the inorganic filler which is suppressed to a low level. A coupling agent is used in combination within the range of 1 to 10 parts by weight and cross-linked to obtain the intended electrical insulating composition. The crosslinking conditions at this time include, for example, 20 to 150 ° C.
40 minutes. Thereby, a good electric insulating composition can be obtained.
【００１３】[0013]
【実施例】表１の配合により、本発明に係る電気絶縁組
成物（実施例１〜３）と、本発明条件を欠く組成物（比
較例１〜７）を製造し、これらの各組成物について、種
々の評価試験を行い、その結果も、同表に併記した。な
お、同表において、耐油試験は、７０℃×４時間の浸油
後のデータとして求めた。[Embodiments] The electrical insulation compositions according to the present invention (Examples 1 to 3) and the compositions lacking the conditions of the present invention (Comparative Examples 1 to 7) were produced by the formulations shown in Table 1, and each of these compositions Was subjected to various evaluation tests, and the results are also shown in the same table. In the table, the oil resistance test was obtained as data after oil immersion at 70 ° C. for 4 hours.
【００１４】[0014]
【表１】 [Table 1]
【００１５】この表１から、本発明に係る電気絶縁組成
物（実施例１〜３）は、優れた耐油性を示し、かつ、硬
さも従来程度のものと同様であることが判る。これに対
して、本発明条件を欠く組成物（比較例１〜７）では、
いすれかの特性において問題があり、特に、クレーを多
量に添加した比較例７では、耐油性が劣ることが判る。From Table 1, it can be seen that the electrical insulating compositions according to the present invention (Examples 1 to 3) exhibit excellent oil resistance and have the same hardness as conventional ones. On the other hand, in the compositions lacking the conditions of the present invention (Comparative Examples 1 to 7),
It is found that there is a problem in some of the properties, and particularly in Comparative Example 7 in which a large amount of clay is added, the oil resistance is inferior.
【００１６】[0016]
【発明の効果】このように本発明によれば、クレー、タ
ルクなどの無機充填材の添加量を少なめに抑え、これら
の無機充填材と同時にシリカおよびシランカップリング
剤を特定の範囲内で併用し、架橋させてあるため、耐熱
性、耐候性、電気絶縁性などの特性はもちろんのこと、
耐油性にも優れた電気絶縁組成物が得られる。したがっ
て、この電気絶縁組成物を、電線、ケーブルの絶縁体や
シース材料に使用すれば、油雰囲気下で使用される、優
れた電線、ケーブルを提供することができる。As described above, according to the present invention, the addition amount of an inorganic filler such as clay or talc is suppressed to a small amount, and silica and a silane coupling agent are used together with these inorganic fillers within a specific range. However, since it is crosslinked, not only the characteristics such as heat resistance, weather resistance, and electrical insulation,
An electric insulating composition having excellent oil resistance can be obtained. Therefore, when this electric insulating composition is used as an insulator or sheath material for electric wires and cables, excellent electric wires and cables used in an oil atmosphere can be provided.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 石川 泉 東京都江東区木場１丁目５番１号 株式会 社フジクラ内 (72)発明者 新井 敏弘 東京都江東区木場１丁目５番１号 株式会 社フジクラ内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Izumi Ishikawa 1-5-1, Kiba, Koto-ku, Tokyo Fujikura Ltd. (72) Inventor Toshihiro Arai 1-1-5, Kiba, Koto-ku, Tokyo Shareholders Inside Fujikura
Claims (1)
よび／またはエチレン−プロピレンジェン三元共重合体
（ＥＰＤＭ）１００重量部、無機充填材３０〜７０重量
部、シリカ１〜５０重量部、シランカップリング剤１〜
１０重量部からなることを特徴とする電気絶縁組成物。1. 100 parts by weight of ethylene-propylene rubber (EPR) and / or ethylene-propylene diene terpolymer (EPDM), 30-70 parts by weight of inorganic filler, 1-50 parts by weight of silica, silane coupling. Agent 1
An electrical insulating composition comprising 10 parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5172717A JPH076624A (en) | 1993-06-18 | 1993-06-18 | Electrical insulating composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5172717A JPH076624A (en) | 1993-06-18 | 1993-06-18 | Electrical insulating composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH076624A true JPH076624A (en) | 1995-01-10 |
Family
ID=15947030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5172717A Pending JPH076624A (en) | 1993-06-18 | 1993-06-18 | Electrical insulating composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH076624A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006273954A (en) * | 2005-03-28 | 2006-10-12 | Nhk Spring Co Ltd | Resin composition with electrical insulation and laminate for circuit board using the same composition |
| CN102702624A (en) * | 2011-12-31 | 2012-10-03 | 深圳罗庚电气有限公司 | Ternary ethylenepropylene insulating sizing material for 35KV high-voltage cable accessory and preparation method for ternary ethylenepropylene insulating sizing material |
| CN103232642A (en) * | 2013-04-27 | 2013-08-07 | 深圳市沃尔核材股份有限公司 | Reactor flame-retardant heat-shrinkable tube meeting nuclear power station AP1000 design requirement |
| CN103724834A (en) * | 2013-12-13 | 2014-04-16 | 芜湖佳诚电子科技有限公司 | Electrical insulation sealing ring |
| JP2016089120A (en) * | 2014-11-10 | 2016-05-23 | 株式会社ニチリン | Ethylene propylene rubber composition and hose using the rubber composition |
| CN106098234A (en) * | 2016-06-24 | 2016-11-09 | 浙江英美达电缆科技有限公司 | A kind of aluminium alloy power cable of anti-long-term ultraviolet ageing |
-
1993
- 1993-06-18 JP JP5172717A patent/JPH076624A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006273954A (en) * | 2005-03-28 | 2006-10-12 | Nhk Spring Co Ltd | Resin composition with electrical insulation and laminate for circuit board using the same composition |
| JP4689317B2 (en) * | 2005-03-28 | 2011-05-25 | 日本発條株式会社 | Electrical insulating resin composition and laminate for circuit board using the same |
| CN102702624A (en) * | 2011-12-31 | 2012-10-03 | 深圳罗庚电气有限公司 | Ternary ethylenepropylene insulating sizing material for 35KV high-voltage cable accessory and preparation method for ternary ethylenepropylene insulating sizing material |
| CN102702624B (en) * | 2011-12-31 | 2015-08-12 | 深圳市罗庚电气有限公司 | A kind of Ethylene Propylene Terpolymer insulation compound for 35KV HV cable accessories and preparation method thereof |
| CN103232642A (en) * | 2013-04-27 | 2013-08-07 | 深圳市沃尔核材股份有限公司 | Reactor flame-retardant heat-shrinkable tube meeting nuclear power station AP1000 design requirement |
| CN103724834A (en) * | 2013-12-13 | 2014-04-16 | 芜湖佳诚电子科技有限公司 | Electrical insulation sealing ring |
| JP2016089120A (en) * | 2014-11-10 | 2016-05-23 | 株式会社ニチリン | Ethylene propylene rubber composition and hose using the rubber composition |
| CN106098234A (en) * | 2016-06-24 | 2016-11-09 | 浙江英美达电缆科技有限公司 | A kind of aluminium alloy power cable of anti-long-term ultraviolet ageing |
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