Environmental-protection capacitor steeping liquid
A capacitor and immersion liquid technology, applied in the direction of capacitors, fixed capacitors, fixed capacitor dielectrics, etc., can solve the problems of poor anti-oxidation and low temperature fluidity, capacitor performance and service cycle decline, and poor comprehensive performance. Excellent properties and antioxidant properties, low cost and stable performance
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Embodiment 1
[0023] An environment-friendly impregnating solution for capacitors, made by weight of the following raw materials: 94 parts of castor oil, 8.5 parts of modified rice bran oil, 0.85 parts of microcrystalline wax, 1.06 parts of modified diatomite, 1.75 parts of modified gypsum powder, 0.01 part of glyme, 0.85 part of polytetrafluoroethylene, 1.58 part of polyethylene wax;
[0024] The modified diatomite is prepared using the following method:
[0025] (1) Crush the diatomite, pass through a 120-mesh sieve, and use a drying oven at 225-245°C for 45-65 minutes;
[0026] (2) Soak the diatomite treated in step (1) with an oxalic acid solution with a mass fraction of 2.5% for 12-15 hours, dry the soaked diatomite at 285-300°C for 2-3 hours, and then Cool at a rate of 2°C / min, keep warm for 2-2.5 hours when the temperature drops to 190°C, then continue to cool down to room temperature at 3°C / min in a dry environment, and perform ultrafine pulverization to obtain modified diatomite. ...
Embodiment 2
[0042] An environment-friendly impregnating solution for capacitors, made of the following raw materials by weight: 95 parts of castor oil, 9 parts of modified rice bran oil, 0.86 parts of microcrystalline wax, 1.08 parts of modified diatomite, 1.8 parts of modified gypsum powder, 0.012 parts of glyme, 0.86 parts of polytetrafluoroethylene, 1.62 parts of polyethylene wax;
[0043] The modified diatomite is prepared using the following method:
[0044] (1) Crush diatomite, pass through a 120-mesh sieve, and use a drying oven to heat-preserve at 230°C for 60 minutes;
[0045] (2) Soak the diatomite treated in step (1) with an oxalic acid solution with a mass fraction of 2.5% for 13 hours, dry the soaked diatomite at 290°C for 3 hours, and then dry it at 2°C / min The temperature is lowered at a high speed, and when the temperature is lowered to 190°C, the heat preservation is continued for 2.2 hours, and then the temperature is continued to be lowered to normal temperature at a r...
Embodiment 3
[0047] An environment-friendly impregnating liquid for capacitors, made by weight of the following raw materials: 93 parts of castor oil, 8.8 parts of modified rice bran oil, 0.92 parts of microcrystalline wax, 1.08 parts of modified diatomite, 1.8 parts of modified gypsum powder, 0.012 parts of glyme, 0.87 parts of polytetrafluoroethylene, 1.7 parts of polyethylene wax;
[0048] The modified diatomite is prepared using the following method:
[0049] (1) Crush the diatomite, pass through a 120-mesh sieve, and use a drying oven to heat-preserve at 242°C for 50 minutes;
[0050] (2) Soak the diatomite treated in step (1) with an oxalic acid solution with a mass fraction of 2.5% for 13 hours, dry the soaked diatomite at 292°C for 2.6h, and then dry it at 2°C / min Cool down at a speed of 190°C and keep warm for 2.3 hours, then continue to cool down to room temperature at 3°C / min in a dry environment, and perform ultrafine pulverization to obtain modified diatomite.
[0051] The per...
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