Mixed modified nano particle transformer oil and preparation method thereof
A technology of transformer oil and nanoparticles, which is applied in the chemical and electrical fields, can solve the problems of less electrical performance, and achieve the effects of simple equipment, good insulation, thermal conductivity and stability improvement.
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[0020] Example 1:
[0021] The invention provides a hybrid modified nano-particle transformer oil and a preparation method thereof, including the following steps:
[0022] (1) Preparation of modified nano boron nitride transformer oil: 0.1g boron nitride nanoparticles were dispersed in 250ml isopropanol, and the BN nanoparticle isopropanol mixture was sonicated for 40 minutes (ice In a water bath), the ultrasonic power is 300w; then the mixture is centrifuged in a gradient, the speed is adjusted to 2000r / min, the centrifugation time is 40min, and the supernatant is collected; the supernatant is centrifuged at a high speed, the speed is adjusted to 8000r / min, and the centrifugation time is 6min , Discard the supernatant to obtain nano-BN with a smaller particle size, then vacuum dry, prepare modified transformer oil according to the BN / transformer oil mass ratio of 1 / 10000, ultrasonically disperse, and then use powerful electromechanical stirring for further dispersion treatment. T...
Example Embodiment
[0026] Example 2:
[0027] The invention provides a hybrid modified nano-particle transformer oil and a preparation method thereof, including the following steps:
[0028] (1) Preparation of modified nano boron nitride transformer oil: 0.1g boron nitride nanoparticles were dispersed in 250ml isopropanol, and the BN nanoparticle isopropanol mixture was sonicated for 15 minutes (ice In a water bath), the ultrasonic power is 450w; then the mixture is centrifuged in a gradient, the speed is adjusted to 3000r / min, the centrifugation time is 25min, and the supernatant is collected; the supernatant is centrifuged at high speed, the speed is adjusted to 10000r / min, and the centrifugation time is 4min , Discard the supernatant to obtain nano-BN with a smaller particle size, then vacuum dry, prepare modified transformer oil according to the BN / transformer oil mass ratio of 1 / 5000, ultrasonically disperse, and then use strong electromechanical stirring for further dispersion treatment. The s...
Example Embodiment
[0031] Example 3:
[0032] The invention provides a hybrid modified nano-particle transformer oil and a preparation method thereof, including the following steps:
[0033] (1) Preparation of modified nano boron nitride transformer oil: 0.1g boron nitride nanoparticles were dispersed in 250ml isopropanol, and the BN nanoparticle isopropanol mixture was sonicated for 30 minutes (ice In a water bath), the ultrasonic power is 400w; then the mixture is centrifuged in a gradient, the speed is adjusted to 2500r / min, the centrifugation time is 30min, and the supernatant is collected; the supernatant is centrifuged at high speed, the speed is adjusted to 9000r / min, and the centrifugation time is 5min , Discard the supernatant to obtain nano-BN with a smaller particle size, then vacuum dry, prepare modified transformer oil according to the mass ratio of BN / transformer oil of 1 / 50,000, ultrasonically disperse, and then use strong electromechanical stirring for further dispersion treatment. T...
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