In the process of using fillers, the oil absorption value is often used to predict the required amount of resin for the filler. In other words, the oil absorption value affects the selection of fillers.
For example, when discussing the heavy calcium carbonate (HCC) powder produced by different grinding equipment, some people may mention that the vertical mill produces HCC powder with high fine powder content, wide particle size distribution, and low oil absorption value, making it suitable for plastic filling; while the ring roller mill produces HCC powder with low fine powder content, good control of large particles, and narrow particle size distribution, making it suitable for coatings.
This involves the secrets of oil absorption value and filler selection.