Method for preparing rapidly cured salt mist resistant conformal coating
A fast-curing, salt-spray-resistant technology, applied in coatings, polyurea/polyurethane coatings, lignin coatings, etc., can solve the problems of poor salt-spray resistance and slow curing speed of three-proof paints, and achieve improved oxidation resistance performance, improving compactness, and enhancing the effect of molecular cross-linking density
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[0033] The dry mixture is prepared as follows:
[0034] (1) Ural licorice and rice straw were put into a planetary ball mill, and ground for 50 minutes under the conditions of a ball-to-material ratio of 5:1 and a rotational speed of 80r / min to obtain a ground mixture, and the mixed ground material was mixed with 5% hydrogen Put the sodium oxide solution into a beaker at a mass ratio of 1:5, place the beaker in a water bath with a water bath temperature of 90°C, and heat at a constant temperature for 2 hours to prepare a reaction slurry;
[0035] (2) Add hydrochloric acid dropwise to the above beaker to adjust the pH value to 3, place the beaker in an ultrasonic oscillator, oscillate and mix for 3 hours at a frequency of 32-36kHz, and place the beaker in a freeze-vacuum oven after oscillation. Lower the temperature in the box to -50°C, stand at constant temperature for 3 hours, evacuate to a vacuum degree of 130 Pa, and stand at constant temperature and pressure for 12 hours t...
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