A capacitor impregnating agent containing modified clay and its preparation method
An impregnating agent and capacitor technology, applied in capacitors, fixed capacitors, circuits, etc., can solve the problems of reducing the life performance of capacitors, capacity attenuation, and oil secondary moisture, etc., achieve good fluidity and heat resistance, and increase capacitor life , Increase the effect of adsorption
Inactive Publication Date: 2016-04-13
许惠
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Problems solved by technology
[0002] At present, the impregnating agents used in capacitors are generally vegetable oils such as castor oil and salad oil, or mineral oils such as methyl silicone oil, benzyl silicone oil, and PO oil. Some moisture, and during the use of the capacitor, the moisture will gradually invade the capacitor core, causing the thin film metal plate of the capacitor to fall off, so that the capacity decays quickly and fails, reducing the life performance of the capacitor. If these oils are dehydrated in advance , requires more complex equipment, costs more, and cannot prevent these oils from being damp again
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Embodiment
[0017] Example : Capacitor impregnating agent containing modified clay, the parts by weight of the raw materials are: salad oil 105, modified clay 5, modified tree ash 3, siliceous shale 1, nanometer clay 0.3, diatomite 0.5, potassium long Stone 0.5, attapulgite 0.8 and stearic acid monoglyceride 0.2.
[0018] The preparation method of the capacitor impregnating agent containing modified clay, comprises the following steps:
[0019] (1) Preparation of modified clay:
[0020] a. First roast the clay at 450-480°C for 3-4 hours, then soak it in 10-12% hydrochloric acid solution for 3-4 hours, then wash it with deionized water until it becomes neutral, and dry it;
[0021] b, adding sodium lauryl sulfate equivalent to 2-3% by weight, 1-2% chlorinated paraffin, 2-3% polyisobutene, 3-5% magnesium oxide powder in the clay after the above-mentioned treatment, high speed Stir at 3200-3500 r / min, dry and pulverize into ultrafine powder;
[0022] (2) Preparation of modified tree ash:...
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Abstract
The invention discloses a capacitor impregnating agent containing modified pottery clay and a preparation method thereof. The raw materials are composed of 103-108 parts by weight of salad oil, 4-6 modified pottery clay, 2-4 modified tree ash, and siliceous Shale 0.8-1.2, attapulgite 0.7-0.9 and stearic acid monoglyceride 0.1-0.3; the present invention uses salad oil as the main ingredient, the price is low, and simultaneously added modified pottery clay, modified tree ash, siliceous page Rock, attapulgite and stearic acid monoglyceride substances, through the modification of clay and tree ash, the adsorption of water in the impregnating agent is increased, and it has good fluidity and heat resistance, no corrosion , No impurities, the invention can effectively improve the electrical performance of the capacitor and increase the service life of the capacitor.
Description
technical field [0001] The invention relates to a capacitor impregnating agent, in particular to a capacitor impregnating agent containing modified clay and a preparation method thereof. Background technique [0002] At present, the impregnating agents used in capacitors are generally vegetable oils such as castor oil and salad oil, or mineral oils such as methyl silicone oil, phenylmethyl silicone oil, and PO oil. The biggest disadvantage of using oils as impregnants for capacitors is that the oil always contains Some moisture, and during the use of the capacitor, the moisture will gradually invade the capacitor core, causing the thin film metal plate of the capacitor to fall off, so that the capacity decays quickly and fails, reducing the life performance of the capacitor. If these oils are dehydrated in advance , requires more complex equipment, costs more, and cannot prevent these oils from getting wet again. Contents of the invention [0003] The purpose of the prese...
Claims
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IPC IPC(8): H01G4/22
Inventor 宋玉春
Owner 许惠