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DE2837358A1 - Polyolefin electrical insulation contg. aliphatic ketone - or peroxide precursor, as high tension stabiliser - Google Patents

Polyolefin electrical insulation contg. aliphatic ketone - or peroxide precursor, as high tension stabiliser

Info

Publication number
DE2837358A1
DE2837358A1 DE19782837358 DE2837358A DE2837358A1 DE 2837358 A1 DE2837358 A1 DE 2837358A1 DE 19782837358 DE19782837358 DE 19782837358 DE 2837358 A DE2837358 A DE 2837358A DE 2837358 A1 DE2837358 A1 DE 2837358A1
Authority
DE
Germany
Prior art keywords
electrical insulation
insulation
stabiliser
contg
polyolefin
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.)
Withdrawn
Application number
DE19782837358
Other languages
German (de)
Inventor
Manfred Dr Phil Saure
Johann Dipl Chem Wartusch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DE19782837358 priority Critical patent/DE2837358A1/en
Publication of DE2837358A1 publication Critical patent/DE2837358A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
    • H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/07—Aldehydes; Ketones
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/14—Peroxides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Organic Insulating Materials (AREA)

Abstract

Electrical insulation contg. an aliphatic keto cpd. (I) as high-tension stabiliser is new. Specified (I) are acetone acetylacetone, acetonylacetone, diacetyl or similar cpds. A peroxide, esp. di-tert. butyl peroxide, which decomposes to give (I), may be added to the insulation. Used for stabilising polyolefin (esp. opt. crosslinked polyethylene) insulation. (I) are compatible with polyolefins and, compared with aromatic ketones, have better migration qualities so are quickly active at sites needing stabilisation under high-voltage conditions.

Description

Mit Hochspannungsstabilisatoren versehene elektrische IsolationElectrical insulation provided with high voltage stabilizers

Die Erfindung bezieht sich auf eine mit Hochspannungsstabilisatoren versehene elektrische Isolation auf Polyolefinbasis, insbesonders auf Basis von Polyäthylen oder vernetztem Polyäthylen.The invention relates to one with high voltage stabilizers provided electrical insulation based on polyolefin, in particular based on Polyethylene or crosslinked polyethylene.

Es ist bekannt, aromatische Carbonyl-Verbindungen als elektrische Spannungsstabilisatoren zu verwenden. Es hat sich gezeigt, daß die bekannten Ketone als Hochspannungsstabilisatoren hinsichtlich ihrer Migrationsfreundlichkeit zu wünscher übrig lassen.It is known to use aromatic carbonyl compounds as electrical ones Use voltage stabilizers. It has been shown that the known ketones desirable as high-voltage stabilizers in terms of their migration friendliness leave behind.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, Hochspannungsstabilisatoren für eine elektrische Isolation zu schaffen, die eine verbesserte Migrationsfreundlichkeit besitzen und gut verträglich in eine Polyolefinisolation einverleibt werden können, so daß sie bei Hochspannungsbeanspruchung an den zu stabilisierenden Stellen der Isolation schnell wirksam werden können.The present invention is based on the object of high-voltage stabilizers to create electrical insulation that is easier to migrate have and can be incorporated into a polyolefin insulation in a well tolerated manner, so that they are exposed to high voltage at the points to be stabilized Isolation can take effect quickly.

Gelöst wird die Aufgabe erfindungsgemäß durch die im Kennzeichen des Anspruches 1 genannten Merkmale.The object is achieved according to the invention by the in the characterizing part of the Claim 1 mentioned features.

Wie Versuche gezeigt haben, eignen sich als Hochspannungsstabilisatoren vorteilhaft aliphatische Carbonyl-Verbindungen, wie Aceton, Acetylaceton, Acetonylaceton, Diacetyl und ähnliche Retone.As tests have shown, are suitable as high-voltage stabilizers advantageously aliphatic carbonyl compounds, such as acetone, acetylacetone, acetonylacetone, Diacetyl and similar retones.

Die zu verwendende Menge des Ketons kann zwischen 0,5 und 10 Gew.-% liegen, vorzugsweise werden 1 bis 3 Gew.-% eingesetzt.The amount of ketone to be used can be between 0.5 and 10% by weight are, preferably 1 to 3 wt .-% are used.

Dabei richtet sich die Dosierung nach dem erwarteten Stabilisierungseffekt, insbesondere Langszeitstabilisierung, sowie der Verträglichkeit in der jeweiligen Isolation.The dosage depends on the expected stabilizing effect, especially long-term stabilization, as well as the compatibility in the respective Isolation.

In weiterer Ausbildung der Erfindung hat es sich als vorteilhaft erwiesen, der zu stabilisierenden Isolation Peroxid-Verbindungen zuzusetzen, die bei ihrer thermisch oder anderweitig eingeleiteten radikalischen Zersetzung Keto-Verbindungen bilden, die bei Hochspannungsbeanpruchung wirksam werden können. Als solche Peroxide können z.B. Verbindungen, wie Ditertiärbutylperoxid ausgewählt werden.In a further embodiment of the invention, it has proven to be advantageous add peroxide compounds to the insulation to be stabilized thermally or otherwise initiated radical decomposition of keto compounds form that can become effective in the event of high voltage stress. As such, peroxides For example, compounds such as di-tert-butyl peroxide can be selected.

Bei Hochfahr-Durchschlagversuchen (Hochfahrgeschwindigkeit ca.In the case of start-up breakdown attempts (start-up speed approx.

*) 1 kV/min) bei Schlagweiten von 0,5 mm und Spitzenradien von 3 µm (vgl. Abbildung) wurden beispielsweise mit einer Hochspannungsisoliermischung aus Polyäthylen mit einem Zusatz von 2 Gew.-% Acetylaceton Durchschlagsspannungen von 26 KV gefunden, wogegen mit einer nicht stabilisierten Vergleichsprobe es bereits bei 7 - 9 KV zu einem Durchschlag kam. *) 1 kV / min) with throw widths of 0.5 mm and tip radii of 3 For example, µm (see figure) were made with a high-voltage insulation compound Made of polyethylene with an addition of 2% by weight acetylacetone breakdown voltages of 26 KV were found, whereas with a non-stabilized comparative sample it was already found a breakthrough occurred at 7 - 9 KV.

*) mit einer Spitze-Platte-Anordnung L e e r s e i t e*) with a tip-plate arrangement L e r s e i t e

Claims (4)

Patentansprüche 1) Mit Hochspannungsstabilisator versehene elektrische Isolation, dadurch gekennzeichnet, daß die Isolation als Stabilisator aliphatische Keto-Verbindungen enthält.Claims 1) Provided with high voltage stabilizer electrical Isolation, characterized in that the isolation is aliphatic as a stabilizer Contains keto compounds. 2) Mit Hochspannungsstabilisator versehene elektrische Isolation nach Anspruch 1, dadurch gekennzeichnet, daß die Isolation aliphatische Keto-Verbindungen wie Aceton, Acetylaceton, Acetonylaceton, Diacetyl und ähnliche Ye. 2) Electrical insulation provided with high voltage stabilizer according to claim 1, characterized in that the isolation is aliphatic keto compounds such as acetone, acetylacetone, acetonylacetone, diacetyl and the like ye. tone enthält. tone contains. 3) Mit Hochspannungsstabilisator versehene elektrische Isolation nach Anspruch 1, dadurch gekennzeichnet, daß der Isolation Peroxide zugesetzt sind, bei deren Zersetzung Keto-Verbindungen entstehen. 3) Electrical insulation with high voltage stabilizer according to claim 1, characterized in that peroxides are added to the insulation, when decomposed, keto compounds are formed. 4) Mit Hochspannungsstabilisator versehene elektrische Isolation nach Anspruch 3, dadurch gekennzeichnet, daß Peroxide wie Ditärtiärbutylperoxid zugesetzt si sind. 4) Electrical insulation provided with high voltage stabilizer according to claim 3, characterized in that peroxides such as dietary butyl peroxide are added.
DE19782837358 1978-08-26 1978-08-26 Polyolefin electrical insulation contg. aliphatic ketone - or peroxide precursor, as high tension stabiliser Withdrawn DE2837358A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19782837358 DE2837358A1 (en) 1978-08-26 1978-08-26 Polyolefin electrical insulation contg. aliphatic ketone - or peroxide precursor, as high tension stabiliser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782837358 DE2837358A1 (en) 1978-08-26 1978-08-26 Polyolefin electrical insulation contg. aliphatic ketone - or peroxide precursor, as high tension stabiliser

Publications (1)

Publication Number Publication Date
DE2837358A1 true DE2837358A1 (en) 1980-03-13

Family

ID=6048002

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19782837358 Withdrawn DE2837358A1 (en) 1978-08-26 1978-08-26 Polyolefin electrical insulation contg. aliphatic ketone - or peroxide precursor, as high tension stabiliser

Country Status (1)

Country Link
DE (1) DE2837358A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0089490A1 (en) * 1982-03-19 1983-09-28 Licentia Patent-Verwaltungs-GmbH Insulation stabilized against high voltage
DE3233324A1 (en) * 1982-09-08 1984-03-08 kabelmetal electro GmbH, 3000 Hannover Plastic-insulated electrical medium- or high-voltage cable
EP0111043A1 (en) * 1982-12-03 1984-06-20 Licentia Patent-Verwaltungs-GmbH Stabilised electrical insulating composition

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0089490A1 (en) * 1982-03-19 1983-09-28 Licentia Patent-Verwaltungs-GmbH Insulation stabilized against high voltage
DE3233324A1 (en) * 1982-09-08 1984-03-08 kabelmetal electro GmbH, 3000 Hannover Plastic-insulated electrical medium- or high-voltage cable
EP0111043A1 (en) * 1982-12-03 1984-06-20 Licentia Patent-Verwaltungs-GmbH Stabilised electrical insulating composition

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee