Anti-icing coating for low-temperature storage tank of rocket and preparation method thereof
A low-temperature storage tank and anti-icing technology, applied in the field of coatings, can solve problems such as condensation into ice, adhesion, launch accidents, and coating effects to be improved, so as to reduce adhesion, increase speed, and quickly and effectively deice Effect
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Embodiment 1
[0031] This embodiment provides a preparation method of an anti-icing coating for a low-temperature storage tank of a rocket, comprising the following steps:
[0032] (1) Add fluorine-containing polyether polyol (BHF-1000), ordinary polyether polyol (DDL-210) and chain extender into the first reactor, and raise the temperature from room temperature to 90°C, during the heating period, the reactor was evacuated to a vacuum degree of -0.09MPa, and the mixture a was obtained after completion;
[0033] (2) Add diisobutyl phthalate, titanium dioxide and anti-aging agent into the high-speed dispersant, and mix for 1 hour under the condition of 500r / min to obtain the color paste mixture; then add the color paste mixture to In a sander, grind at a rate of 1500r / min until the particle size is less than 10 μm to obtain mixture b;
[0034] (3) Add mixture a, mixture b, butyl acetate, defoamer, and leveling agent into the second reactor, mix at 500r / min for 1h, and then filter through a f...
Embodiment 2
[0040] This embodiment provides a preparation method of an anti-icing coating for a low-temperature storage tank of a rocket, comprising the following steps:
[0041] (1) Add fluorine-containing polyether polyol (BHF-1000), ordinary polyether polyol (DDL-210) and chain extender into the first reactor, and raise the temperature from room temperature to 120°C, during the heating period, the reactor was evacuated to a vacuum of -0.1MPa, and the mixture a was obtained after completion;
[0042] (2) Add diisobutyl phthalate, titanium dioxide and anti-aging agent into the high-speed dispersant, and mix for 2 hours under the condition of 2000r / min to obtain the color paste mixture; then add the color paste mixture to In a sander, grind at a rate of 1500r / min until the particle size is less than 10 μm to obtain mixture b;
[0043] (3) Add mixture a, mixture b, butyl acetate, defoamer, and leveling agent into the second reactor, mix for 1 hour under the condition of 1000r / min, and the...
Embodiment 3
[0049] This embodiment provides a preparation method of an anti-icing coating for a low-temperature storage tank of a rocket, comprising the following steps:
[0050] (1) Add fluorine-containing polyether polyol (BHF-1000), ordinary polyether polyol (DDL-210) and chain extender into the first reactor, and raise the temperature from room temperature to 105°C, during the heating period, the reactor was evacuated to a vacuum of -0.1MPa, and the mixture a was obtained after completion;
[0051](2) Add diisobutyl phthalate, titanium dioxide and anti-aging agent into the high-speed dispersant, and mix for 1.5 hours under the condition of 1200r / min to obtain the color paste mixture; then add the color paste mixture to the Put it into a grinding machine, grind at a rate of 1500r / min until the particle size is less than 10 μm, and obtain mixture b;
[0052] (3) Add mixture a, mixture b, butyl acetate, defoamer, and leveling agent into the second reactor, mix at 750r / min for 1h, and th...
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Abstract
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