DE4100265A1 - Coating woven glass-fibre hose with silicone rubber - uses thin first layer of silicone emulsion in water and final layer or crosslinking silicone rubber - Google Patents

Coating woven glass-fibre hose with silicone rubber - uses thin first layer of silicone emulsion in water and final layer or crosslinking silicone rubber

Info

Publication number
DE4100265A1
DE4100265A1 DE19914100265 DE4100265A DE4100265A1 DE 4100265 A1 DE4100265 A1 DE 4100265A1 DE 19914100265 DE19914100265 DE 19914100265 DE 4100265 A DE4100265 A DE 4100265A DE 4100265 A1 DE4100265 A1 DE 4100265A1
Authority
DE
Germany
Prior art keywords
silicone
coating
hose
pref
silicone rubber
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Withdrawn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
DE19914100265
Other languages
German (de)
Inventor
Harald Schnellenbach
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.)
BIW ISOLIERSTOFFE GmbH
Original Assignee
BIW ISOLIERSTOFFE 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 BIW ISOLIERSTOFFE GmbH filed Critical BIW ISOLIERSTOFFE GmbH
Priority to DE19914100265 priority Critical patent/DE4100265A1/en
Publication of DE4100265A1 publication Critical patent/DE4100265A1/en
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
    • C08J5/06—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
    • C08J5/08—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials glass fibres
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10—Coating
    • C03C25/24—Coatings containing organic materials
    • C03C25/40—Organo-silicon compounds
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3412—Insulators
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2383/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
    • C08J2383/04—Polysiloxanes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Laminated Bodies (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)

Abstract

The glass fibre hose is coated with silicone rubber in the following steps: the hose is wetted on the outside with a silicone in a watery base, eg., a silicone or silicone-resin emulsion, then the tube is shaped using a nozzle or a fixed or flying thorn and subsequently dried using heat. Then the hose is coated with a silicone layer, pref. using a rubber which crosslinks by addition or oxidation, which is subsequently vulcanised. The final coating used pref. is suitable for use throughout the range from -100 to +300 deg. C. The final coating pref. is a liq. crosslinking silicone (LSR) pref. resistant to oil and water-vapour. The thickness of the coating is chosen to provide a level of electrical rupture protection in the range of 1-10KV. The process is pref. continuous. USE/ADVANTAGE - The tube coating has lower levels of defects such as air-bubbles and pinholes. It does not liberate solvents during curing, and so does not represent an environmental hazard during mfg. The process can be carried out on a continuous basis.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung eines Glasseiden-Silicon-Isolierschlauches, insbesondere zur elek­ trischen Isolierung.The invention relates to a method for producing a Glass silk-silicone insulating hose, especially for elec trical insulation.

Bei einem solchen Verfahren wird ein Schlauch aus Glassei­ dengeflecht oder -gestrick mit einem Silicon beschichtet und anschließend vulkanisiert.In such a process, a tube of glass egg the braid or knitted fabric coated with a silicone and then vulcanized.

Bekannte Verfahren verwenden lösungsmittelhaltige Beschich­ tungen. Bei der Fertigung verdampfen diese Lösungsmittel, wobei beträchtliche Mengen in der Regel CKW-haltiger, um­ weltschädlicher Gase freigesetzt werden.Known processes use solvent-based coating exercises. These solvents evaporate during manufacture, Considerable amounts usually containing CHCs in order to harmful gases are released.

Ein weiteres bekanntes Verfahren arbeitet ohne Lösungsmit­ tel. Dabei werden geflochtene Glasseidenschläuche mit nie­ derviscosem additionsvernetzenden Zwei-Komponenten-Silicon, wie z. B. LSR (Liguid Silicone Rubber) direkt beschichtet. Bei diesem Verfahren entstehen jedoch zu viele Oberflächen­ fehler wie Pickel oder Blasen, die die elektrischen Isola­ tionseigenschaften des Schlauches beeinträchtigen.Another known method works without a solution tel. Braided glass fiber hoses are never used the viscous addition-curing two-component silicone, such as B. LSR (Liguid Silicone Rubber) coated directly. However, this process creates too many surfaces defects such as pimples or blisters that affect the electrical isola affect the properties of the hose.

Demgegenüber liegt der Erfindung die Aufgabe zugrunde, ein Verfahren zum Herstellen eines Glasseiden-Silicon-Isolier­ schlauches zur Verfügung zu stellen, wobei keine Lösungsmit­ tel eingesetzt werden und der Schlauch nur wenige Oberflä­ chenfehler aufweist.In contrast, the invention is based on the object Process for producing a glass silk-silicone insulation to provide hose, with no solution tel are used and the hose only a few surfaces flaws.

Diese Aufgabe wird mit den Merkmalen der Patentansprüche ge­ löst.This task is ge with the features of the claims solves.

Bei der Lösung geht die Erfindung von dem Grundgedanken aus, den Glasseidenschlauch vor dem Beschichten mit einem wäßri­ gen Medium auf Siliconbasis zu benetzen. Es wird somit eine Zwischenschicht ausgebildet und bei der Erwärmung wird nur Wasserdampf freigesetzt.In the solution, the invention is based on the basic idea the glass fiber tube before coating it with an aq to moisten silicone-based medium. So it becomes a Intermediate layer is formed and when heated only Water vapor released.

Die Vorteile der Erfindung liegen in der Vermeidung von Um­ weltbelastungen und in einer höheren elektrischen Sicherheit des Isolierschlauches.The advantages of the invention lie in the avoidance of order world pollution and in a higher electrical safety of the insulating tube.

Das erfindungsgemäße Verfahren wird im folgenden anhand der Zeichnung näher erläutert.The method according to the invention is described below with the aid of Drawing explained in more detail.

Die einzige Figur zeigt ein Blockbild des erfindungsgemäßen Verfahrens.The single figure shows a block diagram of the invention Procedure.

Ein Glasseidenschlauch 1 wird in Pfeilrichtung durch ver­ schiedene Arbeitsstationen 1 bis 6 mittels einer Vorrichtung 7 geführt. Zuerst wird der Schlauch 1 in einer Benetzungs­ station 2 mit z. B. einer wäßrigen Silicon-Emulsion benetzt. Die Benetzung erfolgt vollständig ohne Ausbildung von Trop­ fen, Tränen oder einer adhäsiven Schicht an der Innenwand des Schlauches, die das Einführen zu isolierender Mate­ rialien behindern können. Danach wird der benetzte Schlauch 1 in einer Kalibrierstation 3 mit z. B. einer Düse kali­ briert. In einer anschließenden Trocknungsstation 4 wird die wäßrige Silicon-Emulsion unter Verdampfen des Wassers auf dem Glasseidenschlauch 1 verfestigt. In der Beschich­ tungsstation 5 erfolgt die Beschichtung des Glasseiden­ schlauches 1 mit z. B. einem peroxidisch vernetzten Silicon- Festkautschuk mittels eines Querkopfes. Die abgeschiedene Schicht wird danach in einer Vernetzungsstation 6 durch Warmvulkanisieren mit dem Schlauch 1 vernetzt.A glass fiber tube 1 is guided in the direction of the arrow through different work stations 1 to 6 by means of a device 7 . First, the hose 1 in a wetting station 2 with z. B. wetted an aqueous silicone emulsion. The wetting takes place completely without the formation of drops, tears or an adhesive layer on the inner wall of the hose, which can hinder the introduction of materials to be insulated. Then the wetted hose 1 in a calibration station 3 with z. B. kali a nozzle. In a subsequent drying station 4 , the aqueous silicone emulsion is solidified by evaporating the water on the glass fiber tube 1 . In the coating station 5 , the coating of the glass silk tube 1 with z. B. a peroxidically crosslinked solid silicone rubber by means of a crosshead. The deposited layer is then crosslinked in a crosslinking station 6 by hot vulcanization with the hose 1 .

Alternative Materialien sind für die Benetzung ein wäßriges Silicon-Harzgemisch und für die Beschichtung additionsver­ netzte Silicon-Festkautschuke oder hochviskose flüssige ad­ ditionsvernetzende Silicone (LSR). Vorteilhafterweise können Silicon-Festkautschuk-Mischungen mit einer Temperatur­ beständigkeit von -100 bis +300°C eingesetzt werden. Es sind auch öl- und wasserdampfbeständige Siliconbeschichtungen möglich.Alternative materials are aqueous for wetting Silicon resin mixture and for the additionsver wetted solid silicone rubbers or highly viscous liquid ad cross-linking silicone (LSR). Can advantageously Silicone solid rubber mixtures with one temperature resistance from -100 to + 300 ° C can be used. There are also oil and water vapor resistant silicone coatings possible.

Die Dicke der Beschichtung richtet sich nach der gewünschten elektrischen Durchschlagsfestigkeit; letztere kann so zwi­ schen 1 und 10 kV eingestellt werden.The thickness of the coating depends on the desired dielectric strength; the latter can be between between 1 and 10 kV.

Claims (12)

1. Verfahren zum Herstellen eines Glasseiden-Silicon-Iso­ lierschlauches mit den Schritten:
  • a) Benetzen (2) eines Glasseidenschlauches (1) mit einem wäßrigen Medium auf Siliconbasis,
  • b) Kalibrieren (3) des benetzten Glasseidenschlauches (1),
  • c) Trocknen (4) des benetzten Glasseidenschlauches (1) unter Wärmeeinwirkung,
  • d) Beschichten (5) des getrockneten Glasseiden­ schlauches mit Silicon, und
  • e) Vernetzen des Glasseidenschlauches mit der aufge­ brachten Siliconschicht durch Warmvulkanisieren (6).
1. A method for producing a glass silk-silicone insulating hose with the steps:
  • a) wetting ( 2 ) a glass fiber tube ( 1 ) with an aqueous medium based on silicone,
  • b) calibration ( 3 ) of the wetted glass fiber tube ( 1 ),
  • c) drying ( 4 ) the wetted glass silk tube ( 1 ) under the action of heat,
  • d) coating ( 5 ) the dried glass silk tube with silicone, and
  • e) cross-linking the glass fiber hose with the applied silicone layer by hot vulcanization ( 6 ).
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Benetzen (2) mit einer wäßrigen Silicon-Emulsion er­ folgt.2. The method according to claim 1, characterized in that the wetting ( 2 ) with an aqueous silicone emulsion he follows. 3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Benetzen (2) mit einem Silicon-Harzgemisch auf Was­ serbasis erfolgt.3. The method according to claim 1, characterized in that the wetting ( 2 ) is carried out with a silicone resin mixture on a water basis. 4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch ge­ kennzeichnet, daß das Beschichten (5) mit peroxidisch- oder additionsvernetzten Silicon-Festkautschuken er­ folgt. 4. The method according to any one of claims 1 to 3, characterized in that the coating ( 5 ) with peroxidically or addition-crosslinked silicone solid rubbers follows. 5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch ge­ kennzeichnet, daß das Beschichten (5) mit Silicon-Fest­ kautschuk-Mischungen mit einer Temperaturbeständigkeit von -100 bis +300°C erfolgt.5. The method according to any one of claims 1 to 4, characterized in that the coating ( 5 ) with solid silicone rubber mixtures with a temperature resistance of -100 to + 300 ° C takes place. 6. Verfahren nach einem der Ansprüche 1 bis 3, dadurch ge­ kennzeichnet, daß das Beschichten (5) mit flüssigen ad­ ditionsvernetzenden Siliconen (LSR) erfolgt.6. The method according to any one of claims 1 to 3, characterized in that the coating ( 5 ) with liquid ad dition cross-linking silicones (LSR). 7. Verfahren nach einem der Ansprüche 1 bis 6, dadurch ge­ kennzeichnet, daß das Beschichten (5) mit öl- und was­ serdampfbeständigem Silicon erfolgt.7. The method according to any one of claims 1 to 6, characterized in that the coating ( 5 ) with oil and what is steam-resistant silicone. 8. Verfahren nach einem der Ansprüche 1 bis 7, dadurch ge­ kennzeichnet, daß die Dicke der Beschichtung (5) so ge­ wählt ist, daß die elektrische Durchschlagsfestigkeit der sich ergebenden Siliconschichten zwischen 1 und 10 kV liegt.8. The method according to any one of claims 1 to 7, characterized in that the thickness of the coating ( 5 ) is selected so that the dielectric strength of the resulting silicone layers is between 1 and 10 kV. 9. Verfahren nach einem der Ansprüche 1 bis 8, dadurch ge­ kennzeichnet, daß das Kalibrieren (3) mittels eines fliegenden oder festen Dorns oder einer Düse erfolgt.9. The method according to any one of claims 1 to 8, characterized in that the calibration ( 3 ) is carried out by means of a flying or fixed mandrel or a nozzle. 10. Verfahren nach einem der Ansprüche 1 bis 9, dadurch ge­ kennzeichnet, daß das Beschichten (5) mittels eines Querkopfes erfolgt.10. The method according to any one of claims 1 to 9, characterized in that the coating ( 5 ) is carried out by means of a cross head. 11. Verfahren nach einem der Ansprüche 1 bis 10, dadurch ge­ kennzeichnet, daß es kontinuierlich erfolgt.11. The method according to any one of claims 1 to 10, characterized ge indicates that it is continuous. 12. Glasseiden-Silicon-Isolierschlauch herstellbar nach dem Verfahren nach einem der Ansprüche 1 bis 11.12. Glass silk-silicone insulating hose can be manufactured according to the Method according to one of claims 1 to 11.
DE19914100265 1991-01-07 1991-01-07 Coating woven glass-fibre hose with silicone rubber - uses thin first layer of silicone emulsion in water and final layer or crosslinking silicone rubber Withdrawn DE4100265A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19914100265 DE4100265A1 (en) 1991-01-07 1991-01-07 Coating woven glass-fibre hose with silicone rubber - uses thin first layer of silicone emulsion in water and final layer or crosslinking silicone rubber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19914100265 DE4100265A1 (en) 1991-01-07 1991-01-07 Coating woven glass-fibre hose with silicone rubber - uses thin first layer of silicone emulsion in water and final layer or crosslinking silicone rubber

Publications (1)

Publication Number Publication Date
DE4100265A1 true DE4100265A1 (en) 1992-07-09

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DE19914100265 Withdrawn DE4100265A1 (en) 1991-01-07 1991-01-07 Coating woven glass-fibre hose with silicone rubber - uses thin first layer of silicone emulsion in water and final layer or crosslinking silicone rubber

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006052010A1 (en) * 2006-11-03 2008-05-08 Biw Isolierstoffe Gmbh Insulating tube, e.g. for mechanical, thermal or electrical insulation of pipes and wires, has several tubular layers including heat protection and barrier layers
US7849812B2 (en) 2006-02-28 2010-12-14 Csl Silicones Inc. Method and apparatus for automated coating of electrical insulators with a silicone composition

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3106748A (en) * 1960-05-23 1963-10-15 Skobel Max Process and apparatus for making supported sleeving
GB1092857A (en) * 1964-09-08 1967-11-29 Dow Corning A method of bonding silicone rubber to plastics

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3106748A (en) * 1960-05-23 1963-10-15 Skobel Max Process and apparatus for making supported sleeving
GB1092857A (en) * 1964-09-08 1967-11-29 Dow Corning A method of bonding silicone rubber to plastics

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7849812B2 (en) 2006-02-28 2010-12-14 Csl Silicones Inc. Method and apparatus for automated coating of electrical insulators with a silicone composition
DE102006052010A1 (en) * 2006-11-03 2008-05-08 Biw Isolierstoffe Gmbh Insulating tube, e.g. for mechanical, thermal or electrical insulation of pipes and wires, has several tubular layers including heat protection and barrier layers
DE102006052010B4 (en) * 2006-11-03 2011-07-28 BIW Isolierstoffe GmbH, 58256 Insulating

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