Ultraviolet-resistant sealing gasket for outdoor transformers and preparation method thereof
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An anti-ultraviolet and transformer technology, which is applied in the field of sealing materials, can solve the problems of power system and user economic losses, transformer oil leakage, cracks, etc., and achieve excellent ultraviolet light aging resistance, long service life and good mechanical strength. Effect
Inactive Publication Date: 2014-01-15
ANHUI KELIN ELECTRONICS
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For outdoor transformers, due to long-term exposure to sunlight, the ultraviolet rays in the sunlight will directly damage the rubber gasket, accelerate its aging and cause cracks, resulting in oil leakage from the transformer, seriously affecting the service life of the transformer, and causing huge economic losses to the power system and users. loss
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[0012] An anti-ultraviolet gasket for outdoor transformers, made of the following raw materials by weight (kg): neoprene (CR121) 70, styrene-butadiene rubber (SBR1712) 30, SEBS8, dioctyl phthalate 12, triphosphate Benzyl ester 10, No. 30 motor oil 15, zinc oxide 4, magnesium oxide 3, stearic acid 1, carbon black N22025, insoluble sulfur 2, diethylene glycol dimethacrylate 3, nano aluminum nitride 8, talc powder 10 , nano barite 6, composite filler 4, anti-aging agent 2642, anti-aging agent MBZ0.5, accelerator DZ1.5, ultraviolet absorber UV-91;
[0013] The preparation method of the composite filler is as follows: a. Weigh wollastonite, pyrophyllite, and attapulgite in a weight ratio of 4:3:1 and mix them evenly, calcinate at 515°C for 4 hours, and put in hydrochloric acid with a concentration of 16% after cooling to normal temperature Soak in the solution for 3 hours, filter, wash the above-mentioned ore mixture with distilled water until neutral, dry, pulverize, and pass thro...
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Abstract
The invention discloses an ultraviolet-resistant sealing gasket for outdoor transformers and a preparation method thereof. The ultraviolet-resistant sealing gasket for the outdoor transformers is prepared from the raw materials in parts by weight: 65-85 parts of chloroprene rubber, 25-35 parts of styrene-butadiene rubber, 5-10 parts of SEBS, 10-15 parts of dicapryl phthalate, 8-12 parts of tritolyl phosphate, 10-15 parts of No. 30 engine oil, 3-5 parts of zinc oxide, 2-4 parts of magnesium oxide, 1-2 parts of stearic acid , 20-30 parts of carbon black N220, 2-3 parts of insoluble sulphur, 3-4 parts of diethylene glycol dimethacrylate, 5-10 parts of nanometer aluminium nitride, 10-15 parts of powdered steatile, 4-8 parts of nanometer barite, 3-5 parts of a composite filling material, 1-2 parts of antiager 264, 0.5-1 part of antiager MBZ, 1-2 parts of promoter DZ and 1-2 parts of ultraviolet light absorber UV-9. The sealing gasket of the invention is excellent in ultraviolet light illumination aging resistance, good in performances of mechanical strength, compression resilience, acid-base resistance, impact resistance, wear resistance, oil resistance, heat resistance and the like, is capable of resisting hit of ultraviolet light in sunlight, enabling the transformers to have no cracks and guaranteeing effective seal, and is long in service life.
Description
technical field [0001] The invention relates to an anti-ultraviolet sealing gasket for outdoor transformers and a preparation method thereof, belonging to the technical field of sealing materials. Background technique [0002] The gasket is an important part of the oil-immersed transformer, which plays the role of sealing and preventing oil leakage of the transformer. For outdoor transformers, due to long-term exposure to sunlight, the ultraviolet rays in the sunlight will directly damage the rubber gasket, accelerate its aging and cause cracks, resulting in oil leakage from the transformer, seriously affecting the service life of the transformer, and causing huge economic losses to the power system and users. loss. Contents of the invention [0003] The object of the present invention is to provide an anti-ultraviolet sealing gasket for outdoor transformers and a preparation method thereof, so as to improve the anti-ultraviolet aging performance of the rubber sealing gas...
Claims
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