High-resilience transformer sealing gasket and preparation method thereof
A resilience and transformer technology, which is applied in the field of high resilience transformer gasket and its preparation, can solve the problems that the compression resilience cannot meet the sealing requirements, and achieve the best compression resilience, high mechanical strength, and good low temperature resistance.
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[0012] A high resilience transformer gasket made of the following raw materials by weight (kg): methyl vinyl rubber (N41) 80, polyurethane rubber (AR-200) 20, hexamethyldisilazane 15, gas phase white Carbon black 35, diphenylsilanediol 5, zinc oxide 1.5, stearic acid 2.5, 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane 1, diisoperoxide Propylbenzene 0.5, bis-(γ-triethoxysilylpropyl) tetrasulfide 2, antioxidant RD1, antioxidant TNP2, antioxidant 10101.5, coumarone resin 10, nanopotassium feldspar 8, organic bentonite 6. Mica powder 8. Composite filler 4;
[0013] The preparation method of the composite filler is as follows: a. Weigh wollastonite, pyrophyllite and attapulgite in a weight ratio of 3:3:1 and mix them evenly, calcinate at 505°C for 4 hours, and put in hydrochloric acid with a concentration of 15% after cooling to normal temperature Soak in the solution for 2 hours, filter, wash the above-mentioned ore mixture with distilled water until neutral, dry, pulverize, and pas...
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