Modified nano-silica and its modification method, anti-corrosion paint and coating
A technology of nano-silica and anti-corrosion coatings, applied in anti-corrosion coatings, epoxy resin coatings, chemical instruments and methods, etc., can solve the problems of inability to achieve long-term anti-corrosion, insufficient hydrophobicity and dispersibility, poor anti-corrosion performance of anti-corrosion coatings, etc. question
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Embodiment 1
[0054] An embodiment of the present invention provides a method for modifying nano-silica, comprising:
[0055] Mix nano silicon dioxide with water for a reaction to obtain a reactant;
[0056] Take hexamethyldisilazane and hexamethyldisiloxane and mix them with absolute ethanol to obtain a mixed solution;
[0057] The first reactant is mixed with the mixed solution to perform a secondary reaction to obtain modified nano silicon dioxide.
[0058] Specifically, the molar ratio of hexamethyldisilazane to hexamethyldisiloxane is 1:1.
[0059] Specifically, the total mass of the hexamethyldisilazane and hexamethyldisiloxane is 20% of the mass of the nano-silica.
[0060] Specifically, the mass of the water is 6% of the mass of the nano silicon dioxide.
[0061] Specifically, the first reactant is mixed with the mixed solution to perform a secondary reaction to obtain modified nano-silica, including:
[0062] The first reactant is mixed with the mixed solution, the second reactio...
Embodiment 2
[0066] An embodiment of the present invention provides a method for modifying nano-silica, comprising:
[0067] Mix nano silicon dioxide with water for a reaction to obtain a reactant;
[0068] Take hexamethyldisilazane and hexamethyldisiloxane and mix them with anhydrous methyl ether to obtain a mixed solution;
[0069] The first reactant is mixed with the mixed solution to perform a secondary reaction to obtain modified nano silicon dioxide.
[0070] Specifically, the molar ratio of hexamethyldisilazane to hexamethyldisiloxane is 1:1.
[0071] Specifically, the total mass of the hexamethyldisilazane and hexamethyldisiloxane is 15%-25% of the mass of the nano-silica.
[0072] Specifically, the mass of the water is 5% of the mass of the nano silicon dioxide.
[0073] Specifically, the first reactant is mixed with the mixed solution to perform a secondary reaction to obtain modified nano-silica, including:
[0074] The first reactant is mixed with the mixed solution, the se...
Embodiment 3
[0078] An embodiment of the present invention provides a method for modifying nano-silica, comprising:
[0079] Mix nano silicon dioxide with water for a reaction to obtain a reactant;
[0080] Get hexamethyldisilazane and hexamethyldisiloxane and mix them with anhydrous acetone to obtain a mixed solution;
[0081] The first reactant is mixed with the mixed solution to perform a secondary reaction to obtain modified nano silicon dioxide.
[0082] Specifically, the thickness ratio of the hexamethyldisilazane to hexamethyldisiloxane is 1:1.
[0083] Specifically, the total mass of the hexamethyldisilazane and hexamethyldisiloxane is 15%-25% of the mass of the nano-silica.
[0084] Specifically, the mass of the water is 10% of the mass of the nano silicon dioxide.
[0085] Specifically, the first reactant is mixed with the mixed solution to perform a secondary reaction to obtain modified nano-silica, including:
[0086] The first reactant is mixed with the mixed solution, the...
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Abstract
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