FIELD: chemistry.
SUBSTANCE: for production of insulating tape, which is used, in particular, in production of insulation for devices of medium and high voltage at use of vacuum-injection impregnation method and does not require use of usual curing agents, in particular, carboxylic anhydrides, invention suggests composition, which contains a) novolac resin obtained by condensation of substituted or unsubstituted phenol together with aldehyde, wherein novolac resin has a molecular weight in range of 250 to 1000 g/mol, and b) a catalyst selected from a group consisting of boron (III) halides and/or amine complexes thereof, imidazoles, acetylacetonates, tin (IV) chloride and/or tertiary amines and/or tetramethyl guanidine, and c) additional additives, if required.
EFFECT: invention relates to a composition for producing an insulating tape, wherein the composition is used to fix mica on the reinforcing layer.
11 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| SOLID INSULATING MATERIAL, ITS USE AND INSULATION SYSTEM MADE THEREBY | 2016 |
|
RU2687404C1 |
| POWDER COATING COMPOSITION FOR ELECTRICAL MACHINE INSULATION SYSTEM, ELECTRICAL MACHINE WITH SUCH INSULATION SYSTEM AND METHOD OF PRODUCING SUCH INSULATION SYSTEM | 2021 |
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| INSULATION SYSTEM, ITS APPLICATIONS, AS WELL AS ELECTRIC MACHINE | 2016 |
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| SOLID INSULATING MATERIAL, ITS APPLICATION AND MANUFACTURED BY THIS INSULATING SYSTEM | 2016 |
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| TAPE CURING ACCELERATOR AND ITS APPLICATION, SOLID INSULATION MATERIAL AND ANHYDRIDE-FREE INSULATION SYSTEM | 2020 |
|
RU2810881C1 |
| INSULATION SYSTEM FOR ELECTRIC ROTATING MACHINES AND METHOD OF ITS FORMATION | 2022 |
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RU2825848C1 |
| CORONA PROTECTIVE TAPE FOR ROTATING ELECTRICAL MACHINE OF HIGH VOLTAGE, ITS APPLICATION AND ELECTRICAL MACHINE | 2021 |
|
RU2820526C1 |
| INSULATING TAPE FOR COIL AND INSULATION SYSTEM WITH WINDING TAPE FOR ELECTRICAL MACHINES | 2016 |
|
RU2724601C2 |
| ELECTROINSULATION MATERIAL ON THE BASE OF MICA PAPER, METHOD OF MANUFACTURING SAME AND METHOD OF MAKING ELECTRIC MACHINE WINDING INSULATION | 0 |
|
SU794673A1 |
