Primärpartikelgröße

Primärpartikelgröße refers to the size of individual, discrete particles that make up a larger material. It is a fundamental characteristic that influences the properties and behavior of powders and aggregates. In many contexts, primary particles are considered the smallest indivisible units within a structure. Their measurement is crucial in fields such as materials science, pharmaceuticals, and food processing, where particle size distribution can directly impact dissolution rates, flowability, surface area, and reactivity.

Methods for determining primary particle size vary depending on the material and the scale of observation. Techniques like microscopy (optical or electron microscopy) allow for direct visualization and measurement of individual particles. Dynamic light scattering is another common method used for sub-micron sized particles, while sieve analysis is more suitable for larger particles. The concept of primary particle size is distinct from agglomerate or aggregate size, which represent collections of primary particles held together. Understanding the primary particle size is essential for controlling and predicting the performance of many manufactured products.