| Résumé : |
Most pigments used in inks and coatings have a primary particle size of 0.02µm.
According to a report released by the National Science and Technology Council (NSTC) 'Nanoscience and Nanotechnology generally refer to the world as it works on the nanometer scale, say from one nanometer to several hundred nanometers'. If we interpret this to mean that a nanoparticle can range in size from one to 700 nanometers, then we can say that most of the components processed on bead mills fall into the area of nanotechnology.
Most pigments used in inks and coatings, for example, have a primary particle size from at least 0.02 microns (µm) or 20 nanometers, up to 200 nanometers. For this article, let us assume that the nanoparticles desired are less than 200 nanometers. Our goal then, will be to identify the required operating conditions for a bead mill to grind and disperse particles to that size. |
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Grinding and dispersing in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 196, N° 4506 (11/2006)
