Fireproof organic negative ion coating and preparation method thereof
A technology of negative ion coatings and negative ion particles, applied in the direction of fireproof coatings, coatings, etc., can solve the problems of flammability, safety hazards, and low cost performance, and achieve the effects of avoiding poisonous, harmful and easy, preventing agglomeration, and reducing overall costs
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[0040] The invention provides a kind of preparation method of fireproof type organic anion coating, wherein, comprise the following steps:
[0041] 1) Preparation of negative ion particles:
[0042] A, under the condition of magnetic stirring, tourmaline powder is mixed with water to make tourmaline suspension;
[0043] B, adding rare earth salts to the tourmaline suspension prepared above and mixing to obtain a mixed solution;
[0044] C. After adding a precipitating agent to the above mixed solution for precipitation, take the precipitate and dry it to obtain negative ion particles;
[0045] 2) Preparation of fireproof particles:
[0046] D, graphite is placed in the mixed solution of hydrogen peroxide and nitric acid and stirred and mixed to obtain oxidized graphite;
[0047] E. Mix the oxidized graphite with water, then add glacial acetic acid dropwise therein and stir to prepare fireproof particles;
[0048] 3) Preparation of fireproof organic anion coating:
[0049]...
Embodiment 1
[0067] 1) Preparation of negative ion particles:
[0068] A, under the condition of magnetic stirring, tourmaline powder is mixed with water to make tourmaline suspension;
[0069] B. Add 0.005mol cerium nitrate to the 10mL tourmaline suspension prepared above (the content of tourmaline powder is 20% by weight) and magnetically stir and mix for 1h to prepare a mixed solution;
[0070] C. After adding ammoniacal liquor with a concentration of 25% to the above mixed solution at a rate of 80 drops / min for precipitation, take the precipitate and rinse it with clear water several times, then dry it at 100°C to obtain negative ion particles;
[0071] 2) Preparation of fireproof particles:
[0072] D, in ice-water bath condition, 10g graphite is placed in the mixed solution of 1mL hydrogen peroxide and 20mL fuming nitric acid and stirs and mixes, then adopt concentration to be the aqueous solution washing of 35% nitric acid, make the graphite after oxidation;
[0073] E. Mix 5g of ...
Embodiment 2
[0078] 1) Preparation of negative ion particles:
[0079] A, under the condition of magnetic stirring, tourmaline powder is mixed with water to make tourmaline suspension;
[0080] B. Add 0.015mol cerium nitrate to the 10mL tourmaline suspension prepared above (the content of tourmaline powder is 30% by weight) and magnetically stir and mix for 3h to obtain a mixed solution;
[0081] C. After adding ammoniacal liquor with a concentration of 25% to the above-mentioned mixed solution at a rate of 120 drops / min for precipitation, take the precipitate and rinse it with clear water several times, then dry it at 130° C. to obtain negative ion particles;
[0082] 2) Preparation of fireproof particles:
[0083] D, in ice-water bath condition, 10g graphite is placed in the mixed solution of 5mL hydrogen peroxide and 30mL fuming nitric acid and stirs and mixes, then adopt concentration to be the aqueous solution washing of 35% nitric acid, make the graphite after oxidation;
[0084] E...
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