Magnetic bronze powder preparation method
A copper-gold powder and magnetic technology, applied in the field of preparation of magnetic copper-gold powder, can solve the problems of not being able to respond positively to magnetic fields, copper-gold powder having no magnetism, and not being able to form a three-dimensional artistic effect, etc., so as to achieve tight coating, thin and uniform coating , good effect of acid and alkali resistance
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Embodiment 1
[0024] The preparation method of magnetic copper-gold powder comprises the steps:
[0025] Step a. Wash the flaky copper and gold powder milled by a ball mill in a cleaning tank with a ketone solvent, and after cleaning for 1-2 hours, press filter and separate solid and liquid to obtain a filter cake with a solid content of 80-85%;
[0026] Step b. Adding 30 parts by weight of filter cake, 60 parts of ethanol, 0.1 part of isopropyl dioleic acid acyloxy (dioctyl phosphate acyloxy) titanate, 3 parts of Fe 3 o 4 , stirring at 30-40°C for 0.5-1h;
[0027] Step c. Take 0.3 parts of 25% ammonia water, 2 parts of distilled water, mix ammonia water and distilled water, and dilute with 5 parts of ethanol; take 2.5 parts of tetraethyl orthosilicate, dilute with 5 parts of ethanol; In the reaction vessel, keep the dropwise addition for 0.5-1h, and the reaction temperature is 45°C;
[0028] Step d. Aging for 6-10h, taking out, press filtration, and solid-liquid separation to obtain ino...
Embodiment 2
[0032] The preparation method of magnetic copper-gold powder comprises the steps:
[0033] Step a. Wash the flaky copper and gold powder milled by a ball mill in a cleaning tank with a ketone solvent, and after cleaning for 1-2 hours, press filter and separate solid and liquid to obtain a filter cake with a solid content of 80-85%;
[0034] Step b. adding weight parts is 35 parts of filter cakes, 65 parts of n-propanol, 0.3 parts of isopropyl tris (dioctyl phosphate acyloxy) titanate, 5 parts of magnetic powder material Fe ( CO) 5 , stirring at 30-40°C for 0.5-1h;
[0035] Step c. Take 0.6 parts of 25% ammonia water, 2.3 parts of distilled water, mix ammonia water with distilled water, and dilute with 5 parts of n-propanol; take 3 parts of tetraethyl orthosilicate, dilute with 5 parts of n-propanol; Add dropwise to the reaction container at the same time, keep the dropwise addition for 0.5-1h, and the reaction temperature is 45°C;
[0036] Step d. Aging for 6-10h, taking ou...
Embodiment 3
[0040] The preparation method of magnetic copper-gold powder comprises the steps:
[0041] Step a. Clean the flaky copper and gold powder milled by a ball mill in a cleaning tank with a ketone solvent. After cleaning for 1-2 hours, press filter and separate solid and liquid to obtain a filter cake with a solid content of 80-85%;
[0042] Step b. Add 40 parts by weight of filter cake, 70 parts of isopropanol, 8 parts of magnetic powder material Ni, 0.5 parts of isopropyl titanate tristearate compound in parts by weight, 30-40 °C Stir for 0.5-1h;
[0043] Step c. Take 1.0 parts of 25% ammonia water, 2.5 parts of distilled water, mix ammonia water and distilled water, and dilute with 5 parts of isopropanol; take 3.5 parts of tetraethyl orthosilicate, dilute with 5 parts of isopropanol; Add dropwise to the reaction container at the same time, keep the dropwise addition for 0.5-1h, and the reaction temperature is 45°C;
[0044] Step d. Aging for 6-10h, taking out, press filtratio...
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