FIELD: chemistry.
SUBSTANCE: invention relates to curable compositions of epoxy resin, suitable for making an insulator for a high-voltage gas-insulated switchgear. Invention includes (A) epoxy resin composition containing a mixture of: (A1) at least one solid epoxy resin, (A2) of at least one novolac epoxy resin, and (A3) at least one cycloaliphatic epoxy resin; (B) at least one anhydride hardener; (C) at least one filler; and (D) optionally at least one catalyst or at least one accelerator. Composition has a ratio of epoxy groups to anhydride groups from 1:0.75 to 1:0.85.
EFFECT: invention increases mechanical strength and hardness of composition.
14 cl, 1 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| INSULATING COMPOSITE MATERIALS FOR ELECTRIC POWER TRANSMISSION AND DISTRIBUTION SYSTEMS | 2012 |
|
RU2609914C2 |
| CURABLE EPOXY COMPOSITION AND COMPOTE DERIVED THEREFROM | 2012 |
|
RU2618745C2 |
| CURABLE EPOXY RESIN COMPOSITIONS AND COMPOSITES MADE THEREFROM | 2012 |
|
RU2602881C2 |
| SOLIDIFIED SYSTEM | 2010 |
|
RU2534653C2 |
| COMPOSITION BASED ON SOLVENT-MODIFIED RESIN AND METHODS OF ITS APPLICATION | 2004 |
|
RU2363071C2 |
| ADDUCTS AS HARDENERS IN THERMALLY CURED EPOXY SYSTEMS | 2011 |
|
RU2574061C2 |
| TRANSPARENT SEALANT COMPOUND, PRODUCTION PROCESS AND SOLID-STATE SYSTEM BASED ON SAID COMPOUND | 2004 |
|
RU2358353C2 |
| EPOXY RESIN-BASED CURABLE COMPOSITIONS AND COMPOSITE MATERIALS OBTAINED THEREFROM | 2011 |
|
RU2574054C2 |
| EPOXIDE RESINS HARDENED BY AMPHIPHILIC BLOC-COPOLYMERS, AND POWDER COATINGS MADE FROM SAID EPOXIDE RESINS | 2005 |
|
RU2389743C2 |
| EPOXY RESINS CONTAINING CYCLOALIPHATIC DIAMINE BASED CURING AGENT | 2007 |
|
RU2418816C2 |
