DE745724C - Electrical insulating material - Google Patents

Electrical insulating material

Info

Publication number
DE745724C
DE745724C DEA86074D DEA0086074D DE745724C DE 745724 C DE745724 C DE 745724C DE A86074 D DEA86074 D DE A86074D DE A0086074 D DEA0086074 D DE A0086074D DE 745724 C DE745724 C DE 745724C
Authority
DE
Germany
Prior art keywords
lead
insulating material
addition
electrical insulating
carbon black
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
Application number
DEA86074D
Other languages
German (de)
Inventor
Raymond M Fuoss
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.)
AEG AG
Original Assignee
AEG AG
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 AEG AG filed Critical AEG AG
Application granted granted Critical
Publication of DE745724C publication Critical patent/DE745724C/en
Expired legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30Insulators 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
    • H01B3/44Insulators 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
    • H01B3/443Insulators 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 vinylhalogenides or other halogenoethylenic compounds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08L27/06Homopolymers or copolymers of vinyl chloride

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

Description

Elektrischer Isolierstoff Gegenstand der Erfindung ist die Verwendung von weichmacherhaltigen Polyvinylhalogeniden, insbesondere Polyvinylchloriden, mit einem Zusatz von Bleiresinat als elektrischer Isolierstoff.Electrical insulating material The invention relates to the use of plasticized polyvinyl halides, in particular polyvinyl chlorides, with an addition of lead sinate as an electrical insulating material.

Es ist bereits bekannt, Polyvinylchloriden Weichmacher, wie z. B. Trikresylphosphat, hinzuzusetzen, um gummiähnliche, harzartige Isoliermassen zu erhalten. Diese Massen besitzen aber den Nachteil, daß die dielektrischen Verluste mit der Temperatur erheblich ansteigen. Um diese Verluste herabzusetzen, hat man der Masse Bleioxyd oder ein Blei salz-und außerdem Gasruß hinzugefügt. Zu befriedigenden Ergebnissen ist man hiermit aber nicht belangt, weil die Wirkung der Bleiverbindungen auch in Versbindung mit Gasruß fmnit der Dauer der Erhitzung wieder abnimmt.It is already known to use polyvinyl chloride plasticizers, such as. B. Tricresyl phosphate, to add to rubber-like, resin-like insulating compounds obtain. However, these masses have the disadvantage that the dielectric losses increase significantly with temperature. In order to reduce these losses, one has lead oxide or a lead salt and also carbon black are added to the mass. To be satisfactory You are not concerned about the results because of the effect of the lead compounds also in connection with gas soot it decreases again with the duration of the heating.

Gemäß der Erfindung wird der Anstieg der dielektrischen Verluste mit der Temperatur dadurch vermieden, daß man den weichmacherhaltign Polyvinylhalogeniden Bleiresinat hinzufügt. In besonderen Fällen ist es zweckmäßig, neben dem Bleiresinat noch Bleioxyd und außerdem noch Gasruß oder Fullererde als absorbierendes Mittel hinzuzusetzen.According to the invention, the increase in dielectric loss will be with the temperature avoided by using the plasticized polyvinyl halides Add lead sinate. In special cases it is useful in addition to the lead resinate lead oxide and also carbon black or fuller's earth as an absorbent to add.

Das Hinzufügen von Bleiresinat zu weichmnacherhaltigen Polyvinylverbindungen ist an sich bekannt, aber nicht die dielektrischen Verluste zu verringern. sondern um der Masse eine höhere Lichtbeständigkeit in der Wärne zu verleihen.Adding lead resin to plasticized polyvinyl compounds is known per se, but does not reduce the dielectric losses. but to give the mass a higher resistance to light in the heat.

Für die Zugabe des Bleiresinats erwies sich als vorteilhaft, das Bleiresinat zuerst in dem Weichmacher, beispielsweise Trikresylphosphat, aufzulösen und beide dann dem Polyvinyllhalogenid zuzusetzen. Danach wird die Masse zwischen beheizten Walzen .bei erhöhter Temperatur; z. B. bei ioo bis iio°, homogenisiert. Der Isolierstoff läßt sich dann in bekannter Weise beispielsweise durch Aufspritzen auf den elektrischen Gegenstand, z. B. einen elektrischen Leiter, aufbringen. Die Isoliermasse gemäß der Erfindung ist insbeson -fiere für soldhe elektrischen Leiter oder Geräte geeignet, die hohen Spannungen bei längerer Temperaturerhöhung ausgesetzt werden.The lead resinate proved to be advantageous for the addition of the lead resinate first dissolve in the plasticizer, e.g. tricresyl phosphate, and both then add to the polyvinyl halide. After that, the mass is heated between Rolling at elevated temperature; z. B. at ioo to iio °, homogenized. The insulating material can then in a known manner, for example by spraying on the electrical object, e.g. B. apply an electrical conductor. The insulating compound According to the invention is in particular -fiere for such electrical conductors or devices suitable to be exposed to high voltages with prolonged temperature increases.

In der nachstehenden Tabelle sind die Ergebnisse von Prüfungen an weichgemachtem Polyvinylchlorid mit und ohne Zusatz aufgeführt. Für die elektrischen Messungen wurde eine Grundmasse verwendet, die aus 6o Teilen Poly vinylchlorid und 4o Teilen Trikresylphosphat bestand. Aus der Masse wurden dann unter einem Druck von I8o kg/crn² bei I5o° Sdheiben mit einem Durchmesser von Ioo mm und einer Stärke von 5 mm gepreßt. Die einzelnen Scheiben wurden zwischen Prüfelektroden gelegt und auf I20° erwärmt. Es wurde dann bei dieser Temperatur der Verlustfaktor bei 6o Hertz im Anfang der Erwärmung und nach 6 Stunden gemessen und folgende Ergebnisse festgestellt: Verlustfaktor Scheibe aus Polyvinylchlorid und Trikresylphosphat bei Beginn nach 6 Stunden der Erhitzung Erhitzung ohne jeglichen Zusatz ..................... . ..... 3870 53I0 mit Zusatz von 0,5% Bleiresinat . . . . . . . . . . . . . . . . I37 I59 I,o% Bleiresinat ................ I29 z40 2,o%0 Bleiresinat . . . . . . . . . . . . . . . . 92 8c9 4,o0/0 Bleiresinat ................ 55 49 - - - 3,7% Bleiresinat und 4,6%o Fuller- erde .................... 4I 28 - - - 3,7% Bleiresinat und 4,6% Gasruß 65 6o 2,4% Pb0 . . . . . . . . . . . . . . . . : .. . . . 33 69 - - - 2,4% Pb 0 und Bleiresinat ....... 35 36 6i 92 - - - 2,4% Pb0 und 2,q% Gasruß ..... 2,3% Pb O, 2,3% Gasruß und 2,3% Bleiresinat............... 28 3o 5% Pb 0 und 5% Gasruß ...... 29 II8 - - - 2,5% Pb 0, 2,5% Bleiresinat und 5% Gasruß.............. 38 41 - - - 2,5% Pb O, 2% B1eiresinat und 5% Fullererde ........... I5 I4 Es ergibt sich aus der Tabelle, daß mit dem Zusatz des Bleiresinats zu weichmacherhaltigen Polyvinylhalogeniden Isoliermassen erhalten werden, die ihre elektrische Isolierfähigkeit bei längerer Erhitzungszeit beibehalten.The table below shows the results of tests on plasticized polyvinyl chloride with and without additives. For the electrical measurements, a base material was used which consisted of 60 parts of polyvinyl chloride and 40 parts of tricresyl phosphate. The mass was then pressed under a pressure of 180 kg / cm² at 150 ° with a diameter of 100 mm and a thickness of 5 mm. The individual discs were placed between test electrodes and heated to 120 °. The loss factor at 6o Hertz at the beginning of the heating and after 6 hours was then measured at this temperature and the following results were found: Loss factor Polyvinyl chloride disc and tricresyl phosphate starting at 6 hours of heating heating without any addition ...................... ..... 3870 53I0 with the addition of 0.5% lead sinate. . . . . . . . . . . . . . . . I37 I59 I, o% lead sinate ................ I29 z40 2.0% 0 lead resinate. . . . . . . . . . . . . . . . 92 8c9 4, o0 / 0 lead disinfectant ................ 55 49 - - - 3.7% lead sinate and 4.6% o Fuller- earth .................... 4I 28 - - - 3.7% lead resinate and 4.6% carbon black 65 6o 2.4% Pb0. . . . . . . . . . . . . . . . : ... . . 33 69 - - - 2.4% Pb 0 and lead sinate ....... 35 36 6i 92 - - - 2.4% Pb0 and 2.q% carbon black ..... 2.3% Pb O, 2.3% carbon black and 2.3% Lead resinate ............... 28 3o 5% Pb 0 and 5% carbon black ...... 29 II8 - - - 2.5% Pb 0, 2.5% lead sinate and 5% carbon black .............. 38 41 - - - 2.5% Pb O, 2% B1eiresinate and 5% fuller's earth ........... I5 I4 It can be seen from the table that the addition of lead resin to plasticizer-containing polyvinyl halides gives insulating compounds which retain their electrical insulating properties after prolonged heating.

Claims (2)

PATENTANSPRÜCHE: I. Die Verwendung von weichmacherhaltigem Polyvinylhalogenid mit einem Zusatz von Bleiresinat als elektrischer Isolierstoff. PATENT CLAIMS: I. The use of plasticized polyvinyl halide with an addition of lead resinate as an electrical insulating material. 2. Die Verwendung von weichmadherhaltigem Polyvinyldhlorid mit einem Zusatz von Bleiresinat und einem Absorptionsmittel, wie Fuilererde oder Gasruß, als elektrischer Tcnlier#gtnff. Zur Abgrenzung des Anmeldungsgegenstandes vom Stand der Technik sind im Erteilungsverfahren folgende Druckschriften in Betracht gezogen worden: britische Patentschriften . . , , Nr. 451723, 4/70380-2. The use of soft mather-containing polyvinyl chloride with an addition of lead resinate and an absorbent, such as filler earth or carbon black, as an electrical agent. In order to distinguish the subject matter of the application from the state of the art, the following publications were considered in the grant procedure: British patents. . ,, No. 451 723, 4 / 70380-
DEA86074D 1937-03-10 1938-03-09 Electrical insulating material Expired DE745724C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US745724XA 1937-03-10 1937-03-10

Publications (1)

Publication Number Publication Date
DE745724C true DE745724C (en) 1944-03-24

Family

ID=22120285

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA86074D Expired DE745724C (en) 1937-03-10 1938-03-09 Electrical insulating material

Country Status (1)

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DE (1) DE745724C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE870545C (en) * 1948-10-02 1953-03-16 Basf Ag Floor coverings

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB451723A (en) * 1934-07-10 1936-08-11 Carbide & Carbon Chem Corp Stabilization of vinyl resins and compositions produced thereby
GB470380A (en) * 1936-03-07 1937-08-13 British Thomson Houston Co Ltd Improvements in and relating to electric insulating materials for conductors and the like

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB451723A (en) * 1934-07-10 1936-08-11 Carbide & Carbon Chem Corp Stabilization of vinyl resins and compositions produced thereby
GB470380A (en) * 1936-03-07 1937-08-13 British Thomson Houston Co Ltd Improvements in and relating to electric insulating materials for conductors and the like

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE870545C (en) * 1948-10-02 1953-03-16 Basf Ag Floor coverings

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