Application of laser particle size analyzer in copper powder

The particle size of copper powder has a significant impact on its application. The following are specific manifestations in different application fields:

Electronic field

Powder metallurgy parts: When manufacturing powder metallurgy parts for electronic components, finer-grained copper powder (such as less than 100 mesh, that is, a particle size less than 150 microns) can make the parts denser and improve the electrical and thermal conductivity of the parts. . If the copper powder particles are too coarse, it will increase the porosity inside the parts, reduce the performance of the parts, and affect the stability and reliability of electronic components.

Electronic slurry: When used to make electronic slurry, the particle size of copper powder will affect the rheology and sintering properties of the slurry. Generally speaking, making high-performance electronic paste requires the use of copper powder with an average particle size of about 1 micron to 5 microns. This can ensure that the paste has good fluidity and uniformity during the printing or coating process. After sintering Form a dense, conductive circuit.

Chemical industry

Catalyst: Copper powder particle size plays a key role when acting as a catalyst in chemical reactions. Smaller particle size copper powder (such as nanoscale copper powder, the particle size is usually below 100 nanometers) has a larger specific surface area and can provide more active sites, thereby significantly improving the efficiency and selectivity of catalytic reactions.

Pigments: When used as a pigment, the particle size of the copper powder determines its color and gloss. Finer copper powder can produce more vivid, uniform colors and a higher gloss. For example, in some high-end coatings and inks, copper powder with a particle size of about 5 microns to 10 microns is usually used to achieve good decorative effects.

In summary, the particle size of copper powder has a particularly important impact on its application. This time, Winner2000ZDE is recommended for customers to measure copper powder particle size.

Measuring instrument information is as follows:

The video of measuring nanoparticles is as follows：