The invention discloses a high-resilience
transformer sealing
gasket and a preparation method thereof. The high-resilience
transformer sealing
gasket is prepared from 70-80 weight parts of methyl vinyl
silicone rubber, 20-30 weight parts of
polyurethane rubber, 15-20 weight parts of hexamethyldisilazane, 30-40 weight parts of
fumed silica, 4-6 weight parts of
diphenylsilanediol, 1-2 weight parts of
zinc oxide, 2-3 weight parts of
stearic acid, 1-2 weight parts of 2,5-dimethyl-2,5-di(tert-butylperoxy)
hexane, 0.5-1 weight part of
dicumyl peroxide, 2-3 weight parts of bis-(gamma-triethoxysilylpropyl)tetrasulfide, 1-2 weight parts of an antiager RD, 2-3 weight parts of an antiager TNP, 1-2 weight parts of an
antioxidant 1010, 10-15 weight parts of coumarone resin, 5-10 weight parts of nanometer
potassium feldspar, 4-8 weight parts of organobentonite, 6-12 weight parts of
mica powder and 3-5 weight parts of a composite filling material. The high-resilience
transformer sealing
gasket is soft and smooth, has no
toxicity and smell, has excellent high temperature and low
temperature resistance, excellent compression resilience and high
mechanical strength, can be used at a temperature of -70-250 DEG C for a long time, and does not age, deform and crack.