Advantages in thermoplastic films

Properties of (Calcined) Neuburg Siliceous Earth and advantages for users:

  • low moisture, low moisture absorption
    → less effort for pre-drying, pre-drying may not be necessary, less polymer degration with hydophobic products 
  • high fineness, very low sieve residue, excellent dispersion properties, refractive index similar to polymers
    → good transparency, high light transmission in the visible range, very thin film thicknesses possible
  • chemical/mineralogical composition
    → infrared barrier
  • high brightness and color neutrality, morphology
    → supports pigment dispersion (spacer effect), potential pigment savings
  • morphology and choice of different particle sizes
    → low coefficient of friction/anti-blocking, high gloss or matting, low or higher haze, improvement of film processing/manufacturing properties by incrasing modulus
  • relatively low specific area
    → almost no adsorption of additives
  • polymer-specific adaptation via functionalization
    → higher impect strength, scratch resistance, printability
  • low CO2-footprint
    → reduction of product carbon footprint of thermoplastic films