A kind of non-leafing water-based aluminum pigment and preparation method thereof
A non-floating, aluminum pigment technology, used in inorganic pigment processing, chemical instruments and methods, fibrous fillers, etc., can solve the problems of long process flow and discount on decorative performance, and achieve the effect of simple process
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[0031] The preparation method of non-leafing type water-based aluminum pigment as above, comprises the following steps:
[0032] S1. Nano-silica, ethylene glycol monobutyl ether and oleic acid are first mixed and reacted to form a complex H;
[0033] S2. Spherical aluminum powder, ethylene glycol monobutyl ether, compound H and octadecylamine are mixed for ball milling;
[0034] S3. pressing and filtering the ball-milled material to obtain a filter cake;
[0035] S4. Knead the filter cake, an appropriate amount of ethylene glycol monobutyl ether and the compound H to form a non-leafing water-based aluminum pigment;
[0036] During the ball milling process, the compound H may be partially dissolved in the ethylene glycol monobutyl ether solvent, and then press-filtered in step S3, and then enters the filtrate, so an appropriate amount of ethylene glycol monobutyl ether and the compound H are added when kneading in step S4, Make the components in the final product meet the pro...
Embodiment 1
[0046] Add oleic acid 50kg in glass reactor, add 50kg concentration while stirring and be the ethylene glycol monobutyl ether solution of 20% nano silicon dioxide (nano silicon dioxide 10kg in the solution, ethylene glycol monobutyl ether 40kg). During the reaction, the rotational speed is controlled at about 200r / m. The temperature of the reactor was controlled at 70°C, and after 4 hours, the reactor was shut down and cooled to room temperature to obtain a compound H with a weight ratio of nano-silica and oleic acid of 1:5, which was set aside.
[0047] Take 8kg of compound H and add In a horizontal drum mill, and 2000kg of high-carbon steel balls with a diameter of 1.0mm are used as the grinding medium of the ball mill, 100kg D 50 Add 8.0 μm nitrogen atomized fine spherical aluminum powder, 240 kg ethylene glycol monobutyl ether, and 1 kg octadecylamine into the ball mill. Ball mill for 24 hours at a rotational speed of 40r / m. Observe the temperature of the ball mill, an...
Embodiment 2
[0050] In glass reactor, add oleic acid 55kg, add 50kg concentration while stirring and be the ethylene glycol monobutyl ether solution of 20% nano silicon dioxide (nano silicon dioxide 10kg in the solution, ethylene glycol monobutyl ether 40kg). During the reaction, the rotational speed is controlled at about 200r / m. Control the temperature of the reactor at 70°C, shut down the reactor after 4 hours and cool it down to room temperature to prepare a compound H with a weight ratio of nano-silica and oleic acid of 1:5.5 for future use.
[0051] Take 9kg of compound H and add In a horizontal drum mill, and 2000kg of high-carbon steel balls with a diameter of 1.0mm are used as the grinding medium of the ball mill, 100kg D 50 Add 8.0 μm nitrogen atomized fine spherical aluminum powder, 260 kg ethylene glycol monobutyl ether, and 1.2 kg octadecylamine into the ball mill. Ball mill for 24 hours at a rotational speed of 40r / m. Observe the temperature of the ball mill, and the temp...
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