Amorphous stabilized nano composite anticorrosive pigment
An anti-corrosion pigment and nano-composite technology, which is applied in the field of material chemistry, can solve the problem that there is no research report on the preparation of amorphous stabilized nano-composite anti-corrosion pigment, and achieve the effects of improving anti-corrosion performance, simplifying the preparation process and reducing production costs.
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Embodiment 1
[0020] Prepare zinc nitrate and 0.15 mol / L sodium tungstate solutions with a concentration of 0.15 mol / L respectively, measure 25 mL of the above two solutions and place them in two beakers, add 1.68 mL to the zinc nitrate and sodium tungstate solutions respectively g benzotriazole, stirred until fully dissolved. Add sodium tungstate containing benzotriazole dropwise to the zinc nitrate solution under 500 W ultrasonic conditions. After reacting for a certain period of time, take the precipitate, wash it with deionized water for 3 times and put it in an oven. and dry for 12 hours to obtain an amorphous stabilized nanocomposite anticorrosion pigment. The overall diameter of the obtained amorphous stabilized nano-composite anti-corrosion pigment is about 2.0 μm, and the thickness of the nano-sheets assembled into the nano-assembled flaky anti-corrosion pigment is about 170 nm. The anti-corrosion pigment is added to the paint to make a paint film. The results of the impedance tes...
Embodiment 2
[0022] Prepare zinc nitrate and 0.3 mol / L sodium tungstate solutions with a concentration of 0.3 mol / L respectively, measure 25 mL of the above two solutions and place them in two beakers, add 3.36 mL to the zinc nitrate and sodium tungstate solutions respectively g benzotriazole, stirred until fully dissolved. Add sodium tungstate containing benzotriazole dropwise to the zinc nitrate solution under 700 W ultrasonic conditions. After reacting for a certain period of time, take the precipitate, wash it with deionized water for 3 times and put it in an oven. and dry for 12 hours to obtain an amorphous stabilized nanocomposite anticorrosion pigment. The overall diameter of the obtained amorphous stabilized nano-composite anti-corrosion pigment is about 1.7 μm, and the thickness of the nano-sheets assembled into the nano-assembled flaky anti-corrosion pigment is about 200 nm. The anti-corrosion pigment is added to the paint to make a paint film. The results of the impedance test ...
Embodiment 3
[0024] Prepare zinc nitrate and 0.03 mol / L sodium tungstate solutions with concentrations of 0.03 mol / L respectively, measure 25 mL of the above two solutions and place them in two beakers, add 0.336 g benzotriazole, stirred until fully dissolved. Add sodium tungstate containing benzotriazole dropwise to the zinc nitrate solution under 800 W ultrasonic conditions. After reacting for a certain period of time, take the precipitate, wash it with deionized water for 3 times and put it in an oven. and dry for 12 hours to obtain an amorphous stabilized nanocomposite anticorrosion pigment. The overall diameter of the obtained amorphous stabilized nano-composite anti-corrosion pigment is about 1.7 μm, and the thickness of the nano-sheets assembled into the nano-assembled flaky anti-corrosion pigment is about 160 nm. The anti-corrosion pigment is added to the paint to make a paint film. The results of the impedance test show that the impedance value is as high as 22140 ohm cm after 48...
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