A kind of preparation method of zinc oxide resistor sheet
A zinc oxide resistor sheet and zinc oxide powder technology, applied in the field of ceramic materials, can solve the problems of corrosion of metal molds, limited application, poor economy, etc., and achieve the effects of simple preparation method, simple operation and low cost
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Embodiment 1
[0044] A preparation method of zinc oxide resistor sheet, comprising the following steps:
[0045] (1) Dissolve metal salts of 0.8 mol of bismuth salt, 0.9 mol of antimony salt, 0.9 mol of nickel salt, 1.0 mol of manganese salt, 0.9 mol of cobalt salt, 0.5 mol of chromium salt, and 0.001 mol of aluminum salt in 900 mol of ethylene glycol, and then 94.999 mol of zinc oxide powder (about 1 μm in diameter) was added to the ethylene glycol solution of the metal salt, and stirred uniformly to form a mixed liquid to be precipitated. Dissolve sodium hydroxide in 800 mol of water to obtain a precipitant solution;
[0046] (2) adding a precipitant solution to the mixed liquid to be precipitated obtained in step (1), heating to 90° C., adjusting the pH value to 10, and reacting for 2 h to obtain a composite powder coated with zinc oxide doped with metal salt precipitate;
[0047] (3) filtering, washing and drying the composite powder obtained in step (2) to obtain a prefabricated powde...
Embodiment 2
[0052] A preparation method of zinc oxide resistor sheet, comprising the following steps:
[0053] (1) Dissolve metal salts of 2.0 mol of bismuth salt, 1.5 mol of antimony salt, 1.5 mol of nickel salt, 1.0 mol of manganese salt, 1.0 mol of cobalt salt, 1.0 mol of chromium salt and 0.01 mol of aluminum salt in 900 mol of ethylene glycol, and then 94.999 mol of zinc oxide powder (about 1 μm in diameter) was added to the ethylene glycol solution of the metal salt, stirred evenly to form a mixed liquid to be precipitated; sodium hydroxide was dissolved in 800 mol of water to obtain a precipitant solution;
[0054] (2) adding a precipitant solution to the mixed liquid to be precipitated obtained in step (1), heating to 90° C., adjusting the pH value to 10, and reacting for 2 h to obtain a composite powder coated with zinc oxide doped with metal salt precipitate;
[0055] (3) filtering, washing and drying the composite powder obtained in step (2) to obtain a prefabricated powder;
...
Embodiment 3
[0060] A preparation method of zinc oxide resistor sheet, comprising the following steps:
[0061] (1) Dissolve metal salts of 0.8 mol of bismuth salt, 0.9 mol of antimony salt, 0.9 mol of nickel salt, 1.0 mol of manganese salt, 0.9 mol of cobalt salt, 0.5 mol of chromium salt, and 0.001 mol of aluminum salt in 900 mol of ethylene glycol, and then 94.999 mol of zinc oxide powder (about 1 μm in diameter) was added to the ethylene glycol solution of the metal salt, stirred evenly to form a mixed liquid to be precipitated; sodium hydroxide was dissolved in 800 mol of water to obtain a precipitant solution;
[0062] (2) adding a precipitant solution to the mixed liquid to be precipitated obtained in step (1), heating to 90° C., adjusting the pH value to 10, and reacting for 2 h to obtain a composite powder coated with zinc oxide doped with metal salt precipitate;
[0063] (3) filtering, washing and drying the composite powder obtained in step (2) to obtain a prefabricated powder; ...
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