Method for coating aluminum powder with organic-inorganic hybrid film
A technology of surface coating and hybrid film, which is applied in chemical instruments and methods, dyeing low-molecular organic compound treatment, inorganic pigment treatment, etc., can solve problems such as chaotic alignment of aluminum powder pigments and differences in orientation alignment of aluminum powder pigments, etc. Achieve the effect of improving the overall process level, improving energy saving and environmental protection, and maintaining product stability
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Embodiment 1
[0038] The invention provides a technical solution: a method for coating the surface of aluminum powder with an organic-inorganic hybrid film, the manufacturing method comprising the following steps:
[0039] S1. Select the material first, select qualified non-leafing aluminum powder, the non-leafing aluminum powder is divided into dry powder with full solid content, and select the slurry;
[0040] S2. Carry out a comprehensive inspection of the particle size and white brightness of the raw material powder selected in S1, screen out the qualified material powder, put it in a storage container, and affix a label;
[0041] S3, prepare sodium hydroxide solution, in configuration process, use pH meter to detect the pH value of sodium hydroxide in real time, and make its pH value within a certain range;
[0042] S4. Select a suitable coupling agent and orthosilicic acid as a coating agent, store the coating agent in a storage container, and affix a corresponding label;
[0043] S5...
Embodiment 2
[0053] S1. Select the material first, select qualified non-leafing aluminum powder, the non-leafing aluminum powder is divided into dry powder with full solid content, and select the slurry;
[0054] S2. Carry out a comprehensive inspection of the particle size and white brightness of the raw material powder selected in S1, screen out the qualified material powder, put it in a storage container, and affix a label;
[0055] S3, prepare sodium hydroxide solution, in configuration process, use pH meter to detect the pH value of sodium hydroxide in real time, and make its pH value within a certain range;
[0056] S4. Select a suitable coupling agent and orthosilicic acid as a coating agent, store the coating agent in a storage container, and affix a corresponding label;
[0057] S5. Add the raw materials screened in S2 into the disperser, and add 94% ethanol solution to the disperser for the first time, and carry out 1.2h pre-dispersion treatment on the raw material aluminum powde...
Embodiment 3
[0067] S1. Select the material first, select qualified non-leafing aluminum powder, the non-leafing aluminum powder is divided into dry powder with full solid content, and select the slurry;
[0068] S2. Carry out a comprehensive inspection of the particle size and white brightness of the raw material powder selected in S1, screen out the qualified material powder, put it in a storage container, and affix a label;
[0069] S3, prepare sodium hydroxide solution, in configuration process, use pH meter to detect the pH value of sodium hydroxide in real time, and make its pH value in the scope of 9.2-9.5;
[0070] S4. Select a suitable coupling agent and orthosilicic acid as a coating agent, store the coating agent in a storage container, and affix a corresponding label;
[0071] S5. Add the raw materials screened in S2 into the disperser, and add 92% ethanol solution to the disperser for the first time, and pre-disperse the raw aluminum powder for 1 hour. The pre-disperser adopts...
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