Superfine heavy calcium carbonate transparent powder dolomite powder talcum powder wollastonite

Superfine heavy calcium carbonate I. Introduction superfine heavy calcium carbonate (CaCO3) 1. Materials: natural calcite, marble 2. Features: uniform size, fewer impurities, high brightness, low oil absorption, insulation and good liquidity . 3. Process: Strict selection of ore - clean - grind - airflow classifier - testing center - qualified library II Product index Item Index Item 800M 1250M 2000M 2500M diameter D97 (μm) ≤ 16 10 6 5 CaCO3 content% ≥ 98.8 98.8 98.8 98.8 Whiteness ≥ 93 95 96 96 PH value (10% suspension) 8.5-9.5 8.5-9.5 8.5-9.5 8.5-9.5 Oil Absorption (ml / 100g) 18-22 22-24 22-30 22-30 water parts of content% ≤ 0.3 0.3 0.3 0.3% loss on ignition 43.5 43.5 43.5 43.5 sedimentation volume (ml) 30 35 55 60 oil absorption value (DOP) ml / 100g ≤ 40-45 42-50 48-58 50-60 Fe2O3 content% ≤ 0.02 0.02 0.02 0.02 SiO2 content% ≤ 0.01 0.01 0.01 0.01 Appearance White powder White powder White powder White powder III products are widely used in the paper industry, plastics industry, composite materials, all kinds of plastic pipes, profiles, plastic products, degradation plastic and wire and cable, rubber industry, tire, rubber, seal products, paint industry oily bottom paint, luxury cars face painting, powder coating, water-based paint and other products in the filler material. Fourth, the products are mainly used in the paper industry: having an increased surface gloss, improve the whiteness, improve paper surface smoothness requirements. Used in the rubber industry: improve product tensile, tensile, heat resistance, aging resistance, tear and other properties. Used in the paint industry: film thickness can be increased to improve the wear resistance and weather resistance, while improving the extraction rate of powder coatings and coating area, while it does not contain heavy metals, it is free of heavy metals powder coating The preferred filler.