Mica is a natural phyllosilicate which features a pronounced plate-like structure. There are different types of mica. For industrial purposes the bright muscovite and the dark phlogopite are preferred. Both minerals have to pass extensive preparation processes such as crushing and separation with hydrocyclones and floatation. Finally they are dried and milled.
Features
hardness 2.5 (Mohs)
density 2.85 g/cm³
platelet particles
high aspect ratio (1:30)
high thermal stability
low oil absorption
Key applications
engineering thermoplastic polymers as PA for large, dimensional- and thermal stable parts for the automotive industry
silicate paints
cracking prevention in dispersion paints and plasters
