(735y) Stickiness Measurements in Relation to Particle Process Setting

Measuring the stickiness of powders in relation to their temperature and moisture content is of significant importance in the production of powders, esp. from liquids. Specifically in spray dryers, fluid bed and drum dryers, where heat is used to remove the water. Also in coating related processes, the stickiness gives valuable information on spray rates of the coating solution in relation to the maximum temperature and humidity in the coater that can be set to prevent the particles from sticking to each other. In this talk some known (DVS, DSC, Anton Paar, etc) and some novel techniques (e.g. Granudrum) will be discussed and the limitations of these techniques will be given.