Do you know what the advantages of nitrogen-atomized aluminum powder are? In today’s era, when the aluminum pigment industry is rapidly growing, many people have started paying attention to this sector in their spare time. After all, aluminum pigment products are widely used in our daily lives, and more and more people are becoming aware of our aluminum powder. Are you familiar with aluminum powder? And do you know what makes nitrogen-atomized aluminum powder so advantageous?
Aluminum powder, a silvery-white powder, is non-toxic and odorless, yet it boasts a strong metallic luster. The aluminum powder particles used as pigments have a flaky appearance, and it’s precisely this flaky particle structure that gives aluminum powder its distinctive metallic sheen as well as excellent shielding properties.
1. The characteristic of flake-like coverage. The opacity of nitrogen-atomized aluminum powder depends on its surface area—specifically, the aspect ratio (particle diameter to thickness). During the grinding process, the nitrogen-atomized aluminum powder is stretched, causing the aspect ratio to continuously increase, which in turn enhances its covering power.
2. Shielding properties. The pores between the layers of nitrogen-atomized aluminum powder are staggered, effectively blocking the capillary channels in the carrier film. As a result, external moisture and gases cannot penetrate through these capillaries to reach the substrate—this is precisely the shielding performance of nitrogen-atomized aluminum powder.
3. Optical Properties: The pores between the nitrogen-atomized aluminum powder layers are staggered, effectively blocking the capillary micropores of the carrier film. As a result, external moisture and gases cannot penetrate through these capillaries to reach the substrate—this characteristic is what gives aluminum powder its excellent physical barrier properties.
4. The "bicolor effect" property. This characteristic of nitrogen-atomized aluminum powder has been widely applied in coatings, serving as either hammer-effect paint or metallic paint.
5. Floating properties. A major category of pigment-grade nitrogen-atomized aluminum powder and aluminum paste is the floating type, characterized by flake-like particles that remain suspended on the surface of the coating film.
That’s all for today’s discussion on "What are the advantages of nitrogen-atomized aluminum powder?" We hope this was helpful—see you next time!
