| 摘要 |
<p>Curable epoxy resin casting materials comprising a) an epoxy resin having on average more than 1,2-epoxy group in the molecule, b) a curing agent for the epoxy resin, c) a core/shell polymer, d) aluminium oxide having a particle size distribution of from 0.1 to 300 µm, and e) a compound of the general formula (RO)nPO(OH)3-n wherein n=1-2 and R = R'-(O-CmH2m)a-(O-CO-CxH2x)b-, wherein a = 0-50, b = 0-50, m = 1-6, x = 1-5 and R' = C4-24alkenyl, C4-24alkyl, C5-30aryl, CH2=CH-CO- or CH2=C(CH3)-CO-; crosslinked products obtainable by thermally curing such casting materials, and the use of such casting materials as electrically insulating construction material for electrical or electronic components, especially in the manufacture of so-called 'spacers' for gas-insulated switching systems and generator switches.</p> |
