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, morphology
→ high surface quality, no spots or agglomerates, supports pigment dispersion (spacer effect), potential pigment savings
- high brightness and color neutrality
→ enables white products without a yellow tint, low requirement for white pigments such as titanium dioxide
- largely isotropic properties
→ low warpage, medium increase in stiffness
- hard silicate mineral
→ very good acid resistance, abrasion resistance, scratch resistance
- polymer-specific adaptation via functionalization
→ very good scratch resistance, high impact strength, high ulitmate elongation
- temperature resistance
→ can also be used for technical thermoplastics, no by-products or decomposition
- low CO2-footprint
→ reduction of product carbon footprint of thermoplastic molded parts