JPS6046486B2 - electrical insulation - Google Patents
electrical insulationInfo
- Publication number
- JPS6046486B2 JPS6046486B2 JP9065978A JP9065978A JPS6046486B2 JP S6046486 B2 JPS6046486 B2 JP S6046486B2 JP 9065978 A JP9065978 A JP 9065978A JP 9065978 A JP9065978 A JP 9065978A JP S6046486 B2 JPS6046486 B2 JP S6046486B2
- Authority
- JP
- Japan
- Prior art keywords
- ethylene
- electrical insulation
- copolymer
- propylene
- resistance
- 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
- 238000010292 electrical insulation Methods 0.000 title claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 6
- 229920001038 ethylene copolymer Polymers 0.000 claims description 5
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 150000001451 organic peroxides Chemical class 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 description 6
- 229920001577 copolymer Polymers 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000004709 Chlorinated polyethylene Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000615 nonconductor Substances 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
- 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
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Landscapes
- Organic Insulating Materials (AREA)
Description
【発明の詳細な説明】
本発明は、高度の耐熱性を有し、しかも難燃性、耐油
性を兼備する電気絶縁物に関するものてある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electrical insulator that has a high degree of heat resistance, flame retardancy, and oil resistance.
エチレン系ポリマは電気絶縁性に優れた材料であるが
難燃性、耐油性に劣ることから、この改善のために従来
、難燃性で耐油性の良い塩素化ポリエチレン、ビニル等
の塩素を含むポリマをブレンドする方法がとられてきた
。Ethylene-based polymer is a material with excellent electrical insulation properties, but has poor flame retardancy and oil resistance.To improve this, conventionally, chlorinated polyethylene and vinyl containing chlorine, which have good flame retardancy and oil resistance, have been used. A method of blending polymers has been used.
しかし、これら塩素を含むポリマは、一般に電気絶縁
性及び耐熱性に劣るため、多量にブレンドするとエチレ
ン系ポリマの特徴である電気絶縁性が損なわれ、また耐
熱性が低下するという欠点があつた。However, these chlorine-containing polymers generally have poor electrical insulation and heat resistance, so if they are blended in large quantities, they have the disadvantage that the electrical insulation, which is a characteristic of ethylene polymers, is lost and the heat resistance is reduced.
本発明の目的は、エチレン系ポリマに耐熱性、電気特
性に優れた難燃、耐熱性ポリマをブレンドすることによ
り、前記した従来の欠点を解消することにできる電気絶
縁物を提供することにある。An object of the present invention is to provide an electrical insulator that can overcome the above-mentioned conventional drawbacks by blending an ethylene polymer with a flame-retardant and heat-resistant polymer that has excellent heat resistance and electrical properties. .
本発明者は、エチレン系ポリマヘのブレンドポリマに
ついて種々検討した結果、プロピレンー４ふつ化エチレ
ンコポリマを８鍾量部以上含有し、更に有機過酸化物を
含有する組成物が加熱加硫されてなることを特徴するも
のである。 本発明において、エチレン系ポリマとして
は、ポリエチレンまたはエチレンとの共重合体であり、
具体的にはエチレン−プロピレン共重合体、エチレンー
酢酸ビニル共重合体、エチレン−エチルアクリレート共
重合体等があげられる。As a result of various studies on blend polymers for ethylene-based polymers, the present inventor has discovered that a composition containing 8 parts by weight or more of a propylene-tetrafluorinated ethylene copolymer and further containing an organic peroxide is obtained by heating and vulcanizing the composition. It is characterized by In the present invention, the ethylene polymer is polyethylene or a copolymer with ethylene,
Specific examples include ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, and ethylene-ethyl acrylate copolymer.
また、プロピレンー４ふつ化エチレンコポリマは、難
燃性、耐油性に富むばかりでなく、耐熱性はエチレン系
ポリマよりはるかに優れ、しかも電気絶縁性に関しても
エチレン系ポリマとほぼ同等なものである。Further, propylene-tetrafluorinated ethylene copolymer not only has high flame retardancy and oil resistance, but also has far superior heat resistance than ethylene polymer, and is almost equivalent to ethylene polymer in terms of electrical insulation properties.
したがつて、これをエチレン系ポリマに多量ブレンド
しても、従来の欠点とされた耐熱性についてはむしろ向
上させ、電気特性の低下はほとんどなく、目標とする難
燃性、耐油性を付与することができる。Therefore, even if a large amount of this is blended with an ethylene polymer, the heat resistance, which was considered a drawback in the past, is improved, there is almost no deterioration in electrical properties, and the target flame retardance and oil resistance are imparted. be able to.
エチレン系ポリマにブレンドするプロピレンー４ふつ
化エチレンコポリマの量は、エチレン系ポリマ１０鍾量
部に対して８０重量部以上とする必要があり、これ以下
では目的とする難燃性、耐油性を付与できない。The amount of propylene-4-fluorinated ethylene copolymer blended with the ethylene polymer must be at least 80 parts by weight per 10 parts by weight of the ethylene polymer; anything less than this will not provide the desired flame retardancy and oil resistance. Can not.
本発明では、エチレン系ポリマおよびプロピレンー４ふ
つ化エチレンコポリマに加えてジクミルパーオキサイド
等の有機過酸化物を添加し、加熱加硫によつて所定の成
形品が得られる。In the present invention, an organic peroxide such as dicumyl peroxide is added to the ethylene polymer and the propylene-tetrafluorinated ethylene copolymer, and a predetermined molded article is obtained by heat vulcanization.
以下、本発明の実施例について説明する。Examples of the present invention will be described below.
第１表の各例に示す配合でもつて熱ロールで均一に混練
し、次いで熱ブレスにて加熱加硫することにより加硫シ
ートを作製した。かくして作製したシートについての評
価結果は第１表の下欄に示す通りてある。Vulcanized sheets were prepared by uniformly kneading the formulations shown in each example in Table 1 using hot rolls and then heating and vulcanizing them using a hot press. The evaluation results for the sheets thus produced are shown in the lower column of Table 1.
なお、評価は次に基づいて行つた。The evaluation was based on the following.
難燃性：ＡＳＴＭＤ６３５−６３に準じた。Flame retardancy: According to ASTM D635-63.
耐油性：１２０℃で１８時間浸漬後の引張強さ残
率、伸び残率を求めた。耐熱性：１５０′Ｃて７日間劣
化後の引張強さ残 率、伸び残率を求めた。Oil resistance: tensile strength remaining after 18 hours immersion at 120℃
The remaining elongation rate was calculated. Heat resistance: Tensile strength retention and elongation retention after aging at 150'C for 7 days were determined.
第１表より、本発明の範囲にある実施例１〜３では、い
ずれも難燃性、耐油性に優れ、しかも優れた絶縁抵抗、
耐熱性を有していることがわかる。From Table 1, Examples 1 to 3 within the scope of the present invention all have excellent flame retardancy and oil resistance, as well as excellent insulation resistance and
It can be seen that it has heat resistance.
比較例１は、プロピレンー４ふつ化エチレンコポリマの
含有量が本発明の規定値より少ないものであり、難燃性
が不十分である。In Comparative Example 1, the content of the propylene-tetrafluoroethylene copolymer was less than the specified value of the present invention, and the flame retardance was insufficient.
比較例２は、塩素化ポリエチレンをブレンドしたもので
あり、絶縁抵抗および耐熱性の低下が著しい。Comparative Example 2 is a blend of chlorinated polyethylene, and the insulation resistance and heat resistance are significantly lowered.
比較例３は、エチレン−プロピレン共重合体単独を使用
したもので、難燃性、耐油性が劣る。Comparative Example 3 uses an ethylene-propylene copolymer alone, and has poor flame retardancy and oil resistance.
Claims (1)
ン−４ふつ化エチレンコポリマを８０重量部以上含有し
、更に有機過酸化物を含有する組成物が加熱加硫されて
なることを特徴とする電気絶縁物。1. Electrical insulation characterized by being obtained by heating and vulcanizing a composition containing 80 parts by weight or more of a propylene-4-fluorinated ethylene copolymer and an organic peroxide based on 100 parts by weight of an ethylene polymer. thing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9065978A JPS6046486B2 (en) | 1978-07-25 | 1978-07-25 | electrical insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9065978A JPS6046486B2 (en) | 1978-07-25 | 1978-07-25 | electrical insulation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5517938A JPS5517938A (en) | 1980-02-07 |
| JPS6046486B2 true JPS6046486B2 (en) | 1985-10-16 |
Family
ID=14004647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9065978A Expired JPS6046486B2 (en) | 1978-07-25 | 1978-07-25 | electrical insulation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6046486B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58178908A (en) * | 1982-04-13 | 1983-10-20 | 日立電線株式会社 | Oil collecting cable |
| JPS58212011A (en) * | 1982-06-03 | 1983-12-09 | 日立電線株式会社 | Heat resistant and oil resistant insulated wire |
| JPS5987705A (en) * | 1982-11-11 | 1984-05-21 | 日立電線株式会社 | Heat resistant, oil resistant fire resistant wire |
| JPS6116412A (en) * | 1984-07-02 | 1986-01-24 | 日立電線株式会社 | Fluorine-containing elastomer coated wire and cable |
-
1978
- 1978-07-25 JP JP9065978A patent/JPS6046486B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5517938A (en) | 1980-02-07 |
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