| Polarite 502A | Imerys Performance Additives | Polarite 502A is a calcined kaolin coated with an aminosilane coupling agent; the silane develops chemical bonds between filler and polymer during many crosslinking reactions to impart good dimensional stability and mechanical strength. Calcined kaolins ...view more Polarite 502A is a calcined kaolin coated with an aminosilane coupling agent; the silane develops chemical bonds between filler and polymer during many crosslinking reactions to impart good dimensional stability and mechanical strength. Calcined kaolins are produced from highly refined kaolins by heating at temperatures above 1000°C. During calcination, chemical, morphological and mineralogical changes occur. view less |
