JPS6247325B2 - - Google Patents
Info
- Publication number
- JPS6247325B2 JPS6247325B2 JP54154638A JP15463879A JPS6247325B2 JP S6247325 B2 JPS6247325 B2 JP S6247325B2 JP 54154638 A JP54154638 A JP 54154638A JP 15463879 A JP15463879 A JP 15463879A JP S6247325 B2 JPS6247325 B2 JP S6247325B2
- Authority
- JP
- Japan
- Prior art keywords
- crystalline polyolefin
- properties
- present
- electrical
- organic acid
- 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
- 229920000098 polyolefin Polymers 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 7
- 150000003839 salts Chemical class 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 150000007524 organic acids Chemical class 0.000 claims description 6
- FMZUHGYZWYNSOA-VVBFYGJXSA-N (1r)-1-[(4r,4ar,8as)-2,6-diphenyl-4,4a,8,8a-tetrahydro-[1,3]dioxino[5,4-d][1,3]dioxin-4-yl]ethane-1,2-diol Chemical compound C([C@@H]1OC(O[C@@H]([C@@H]1O1)[C@H](O)CO)C=2C=CC=CC=2)OC1C1=CC=CC=C1 FMZUHGYZWYNSOA-VVBFYGJXSA-N 0.000 claims description 5
- 229940087101 dibenzylidene sorbitol Drugs 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 4
- 239000012212 insulator Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 1
- JMMZCWZIJXAGKW-UHFFFAOYSA-N 2-methylpent-2-ene Chemical compound CCC=C(C)C JMMZCWZIJXAGKW-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical class [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
- 239000005639 Lauric acid Substances 0.000 description 1
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 1
- 229920000299 Nylon 12 Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical class [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical class [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical class [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920000306 polymethylpentene Polymers 0.000 description 1
- 239000011116 polymethylpentene Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- WBHHMMIMDMUBKC-XLNAKTSKSA-N ricinelaidic acid Chemical compound CCCCCC[C@@H](O)C\C=C\CCCCCCCC(O)=O WBHHMMIMDMUBKC-XLNAKTSKSA-N 0.000 description 1
- 229960003656 ricinoleic acid Drugs 0.000 description 1
- FEUQNCSVHBHROZ-UHFFFAOYSA-N ricinoleic acid Natural products CCCCCCC(O[Si](C)(C)C)CC=CCCCCCCCC(=O)OC FEUQNCSVHBHROZ-UHFFFAOYSA-N 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Chemical class 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
- Insulated Conductors (AREA)
Description
本発明は、課電浸水特性にすぐれた電気絶縁組
成物に関し、特に水中モーター用電線の絶縁体に
好適な電気絶縁組成物に関するものである。
従来、水中モーター用電線の絶縁体には、課電
浸水条件下における電気絶縁特性の安定性を考慮
してポリエチレンやポリ塩化ビニルを主体とする
絶縁体が使用されてきたが、最近の機器の小型
化、高性能化に伴ない、電線に対しても電気的、
機械的、熱的特性の向上が強く要求されるように
なつてきた。
そのための絶縁体としては、高密度ポリエチレ
ン、ポリプロピレン、ポリメチルペンテンなど耐
熱性の優れた結晶性ポリオレフインを主体とする
重合体の応用が考えられるが、これらを実用化す
るためには課電浸水特性の改良が急務となつてい
る。
本発明の目的は、課電浸水による絶縁体の電気
的特性の低下を抑制できる電気絶縁組成物の提供
を目的とするものである。
本発明の電気絶縁組成物は、結晶性ポリオレフ
インを主体とする重合体に有機酸金属塩とジベン
ジリデンソルビトールを添加してなることを特徴
とするものである。
本発明において、結晶性ポリオレフインを主体
とする重合体としては、エチレン、プロピレン、
ブテン、メチルペンテンなどα―オレフインの単
一重合体、それらの共重合体、あるいはそれらの
混合物、または上記結晶性ポリオレフインにエチ
レン―プロピレン、エチレン―ブテン、エチレン
―酢酸ビニルなどのゴム状共重合体を一部混合し
たものなどがあげられ、実質的に結晶を有するポ
リオレフインを主成分とするものをいう。
有機酸金属塩としては、ステアリン酸、ラウリ
ン酸、リシノレイン酸、安息香酸などの有機酸の
バリウム、カルシウム、亜鉛、アルミニウム、鉛
などの塩をいう。
ジベンジリデンソルビトールは、例えば、ソル
ビトールとベンゾアルデヒドを硫酸を触媒として
反応させ、反応終了後硫酸を苛性ソーダで中和し
洗浄後完全脱水して得られる白色粉末であり、次
のような構造式を有するものである。ジベンジリ
デンソルビトールは結晶性高分子材料の改質剤と
して公知の物質であるが、有機酸金属塩との併用
により課電浸水特性が向上することが見出され
た。
有機酸金属塩およびジベンジリデンソルビトー
ルを添加することにより課電浸水特性が向上する
理由は、結晶性ポリオレフインの球晶粒子が微細
化および均質化され、親水性の官能基の作用によ
り水が関係する導電路を作りにくくするためと推
論される。
本発明では、本来の特性を損なわない程度に酸
化防止剤、金属害防止剤、着色剤などを添加でき
ることはいうまでもない。
以下、本発明の実施例につき説明する。
外径1.4mmφのポリエステルエナメル被覆銅線
の上に厚さ0.3mmで第１表に示す結晶ポリオレフ
インを主体とする組成物を絶縁体として押出被覆
した後、厚さ0.1mmのポリアミド（ナイロン12）
を保護層として押出被覆した。
上記電線を界面活性剤、水溶性無機塩類を含む
試験汚水中に浸漬し、60℃に保持して9kHz、
1000Vの交流電圧を500時間課電し、絶縁破壊電
圧を測定した。この結果を初期値とともに第１表
の下欄に示した。
TECHNICAL FIELD The present invention relates to an electrical insulating composition that has excellent electrically applied water penetration properties, and particularly to an electrical insulating composition that is suitable as an insulator for electric wires for underwater motors. Conventionally, insulators mainly made of polyethylene or polyvinyl chloride have been used for the insulators of electric wires for underwater motors, taking into consideration the stability of electrical insulation properties under energized and submerged conditions. Along with miniaturization and higher performance, electrical wires
There has been a strong demand for improved mechanical and thermal properties. As insulators for this purpose, it is possible to use polymers based on crystalline polyolefins with excellent heat resistance, such as high-density polyethylene, polypropylene, and polymethylpentene, but in order to put these into practical use, it is necessary to There is an urgent need for improvement. An object of the present invention is to provide an electrical insulating composition that can suppress deterioration of the electrical properties of an insulator due to energized water immersion. The electrical insulation composition of the present invention is characterized in that it is made by adding an organic acid metal salt and dibenzylidene sorbitol to a polymer mainly composed of crystalline polyolefin. In the present invention, polymers mainly composed of crystalline polyolefin include ethylene, propylene,
A homopolymer of α-olefin such as butene and methylpentene, a copolymer thereof, or a mixture thereof, or a rubbery copolymer such as ethylene-propylene, ethylene-butene, ethylene-vinyl acetate, etc. to the above-mentioned crystalline polyolefin. These include partially mixed polyolefins, and refer to polyolefins whose main component is substantially crystalline polyolefin. Examples of organic acid metal salts include barium, calcium, zinc, aluminum, and lead salts of organic acids such as stearic acid, lauric acid, ricinoleic acid, and benzoic acid. Dibenzylidene sorbitol is a white powder obtained by, for example, reacting sorbitol and benzaldehyde using sulfuric acid as a catalyst, neutralizing the sulfuric acid with caustic soda after the reaction, washing and completely dehydrating it, and has the following structural formula. It is something. Dibenzylidene sorbitol is a substance known as a modifier for crystalline polymer materials, and it has been found that its combined use with an organic acid metal salt improves the electrically charged water immersion properties. The reason why the addition of organic acid metal salts and dibenzylidene sorbitol improves the charged water-immersion properties is that the spherulite particles of crystalline polyolefin are made finer and more homogeneous, and water is involved due to the action of hydrophilic functional groups. It is inferred that this is to make it difficult to create a conductive path. It goes without saying that in the present invention, antioxidants, metal damage inhibitors, colorants, etc. can be added to the extent that the original properties are not impaired. Examples of the present invention will be described below. A polyester enamel-coated copper wire with an outer diameter of 1.4 mmφ was extruded and coated with a composition mainly composed of crystalline polyolefin shown in Table 1 to a thickness of 0.3 mm as an insulator, and then polyamide (nylon 12) with a thickness of 0.1 mm was coated.
was extrusion coated as a protective layer. The above electric wire was immersed in test wastewater containing surfactants and water-soluble inorganic salts, kept at 60℃, and then heated to 9kHz.
An AC voltage of 1000V was applied for 500 hours and the dielectric breakdown voltage was measured. The results are shown in the lower column of Table 1 together with the initial values.
【表】
以上、実施例で説明したことからも明らかなよ
うに、本発明によれば課電浸水特性に優れた電気
絶縁体を実現できるようになり、その工業的価値
は大なるものがある。[Table] As is clear from what has been explained in the Examples above, according to the present invention, it is possible to realize an electrical insulator with excellent energized water penetration characteristics, and its industrial value is great. .
Claims (1)
機酸金属塩とジベンジリデンソルビトールを添加
してなることを特徴とする電気絶縁組成物。 An electrically insulating composition characterized by being formed by adding an organic acid metal salt and dibenzylidene sorbitol to a polymer mainly composed of crystalline polyolefin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15463879A JPS5678005A (en) | 1979-11-29 | 1979-11-29 | Electric insulator composition and insulated wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15463879A JPS5678005A (en) | 1979-11-29 | 1979-11-29 | Electric insulator composition and insulated wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5678005A JPS5678005A (en) | 1981-06-26 |
| JPS6247325B2 true JPS6247325B2 (en) | 1987-10-07 |
Family
ID=15588576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15463879A Granted JPS5678005A (en) | 1979-11-29 | 1979-11-29 | Electric insulator composition and insulated wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5678005A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5736140A (en) * | 1980-08-14 | 1982-02-26 | Adeka Argus Chem Co Ltd | Polybutene-1 resin composition |
| JPS58104933A (en) * | 1981-12-18 | 1983-06-22 | New Japan Chem Co Ltd | Polyolefin resin composition |
| CA1194628A (en) * | 1982-03-31 | 1985-10-01 | Gary S. Cieloszyk | High clarity ethylene polymer compositions |
| JPS598209A (en) * | 1982-07-05 | 1984-01-17 | 住友電気工業株式会社 | Electrically insulated cable |
| JPS5999615A (en) * | 1982-11-30 | 1984-06-08 | 住友電気工業株式会社 | Electrically insulating cable |
| JPS5999605A (en) * | 1982-11-30 | 1984-06-08 | 住友電気工業株式会社 | Electrically insulating cable |
| JPS60185308A (en) * | 1984-03-05 | 1985-09-20 | 株式会社フジクラ | Method of producing power cable |
| EP0930622A1 (en) * | 1997-12-04 | 1999-07-21 | Camco International Inc. | Submergible electric motor having internal corrosion protection |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5034337A (en) * | 1973-06-21 | 1975-04-02 | ||
| JPS5285241A (en) * | 1976-01-02 | 1977-07-15 | Dart Ind Inc | Polyolefin resin composition |
-
1979
- 1979-11-29 JP JP15463879A patent/JPS5678005A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5034337A (en) * | 1973-06-21 | 1975-04-02 | ||
| JPS5285241A (en) * | 1976-01-02 | 1977-07-15 | Dart Ind Inc | Polyolefin resin composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5678005A (en) | 1981-06-26 |
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