Heat-insulating low-temperature container
A low-temperature container and thermal insulation technology, applied in pressure vessels, container filling methods, outer walls of container structures, etc., can solve the problems of high price of vacuum insulation containers, inability to achieve thermal insulation, and high prices, and achieve unique flame resistance. Penetration, strong flame retardancy, good waterproof effect
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Embodiment 1
[0035] Example 1. Put 53 parts of silicon dioxide, 42 parts of aluminum oxide, 0.8 part of ferric oxide, 1 part of barium oxide, and 0.5 part of titanium dioxide into an electric arc furnace and heat it to a molten state above 2000° C. Flow and blow into fibers with high-speed airflow. Mix and stir 60 parts of methyl orthosilicate, 35 parts of hexamethyldisiloxane, 15 parts of deionized water, and 10 parts of hydrochloric acid to form a sol through hydrolysis and polycondensation reaction, add 8 parts of the above-mentioned fibrous material and 18 parts 20 parts of ammonia water, after static polycondensation reaction to form a gel and lose fluidity, add 20 parts of absolute ethanol for aging, then add to an autoclave for supercritical drying and heat preservation. Slowly release the ethanol and cool to room temperature to obtain the nano-microporous thermal insulation material.
Embodiment 2
[0036] Example 2. Put 58 parts of silicon dioxide, 40 parts of aluminum oxide, 0.7 part of ferric oxide, 1.2 parts of barium oxide, and 0.8 part of titanium dioxide into an electric arc furnace and heat it to a molten state above 2000° C. Flow and blow into fibers with high-speed airflow. Mix and stir 65 parts of methyl orthosilicate, 30 parts of hexamethyldisiloxane, 20 parts of deionized water, and 15 parts of hydrochloric acid to form a sol through hydrolysis and polycondensation reaction, add 8 parts of the above-mentioned fibrous material and 15 parts 30 parts of ammonia water, after static polycondensation reaction to form a gel and lose fluidity, add 30 parts of absolute ethanol for aging, then add to an autoclave for supercritical drying and heat preservation. Slowly release the ethanol and cool to room temperature to obtain the nano-microporous thermal insulation material.
Embodiment 3
[0037] Example 3. Put 58 parts of silicon dioxide, 40 parts of aluminum oxide, 0.7 part of ferric oxide, 1.2 parts of barium oxide, and 0.8 part of titanium dioxide into an electric arc furnace and heat it to a molten state above 2000° C. Flow and blow into fibers with high-speed airflow. Mix and stir 80 parts of methyl orthosilicate, 20 parts of deionized water, and 15 parts of hydrochloric acid to form a sol through hydrolysis and polycondensation reaction, add 8 parts of the above-mentioned fibrous material and 15 parts of ammonia water, and stand for polycondensation reaction to form a gel After losing fluidity, 30 parts of absolute ethanol is added for aging, and then added to an autoclave for supercritical drying and heat preservation. Slowly release the ethanol and cool to room temperature to obtain the nano-microporous thermal insulation material.
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