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