Shijiazhuang Mining Technology Co., Ltd.
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Wollastonite
Introduction of Wollastonite:
With unique acicular shape and stable chemical property, wollastonite is featured with good heat resistance, hard wearing and corrosion resistance, and strengthening and reinforcing functions. Being innocuous, flavorless, and non-radioactive, it is extensively applied in functional paint, rubber and plastic, friction materials, building materials, paper making, metallurgy. Wollastonite fiber is environmental inorganic functional filling of high quality.
Chemical Composition of Wollastonite ：
SiO₂ | CaO | Al₂O₃ | Fe₂O₃ | TiO₂ | MgO | S | P | LOI | PH |
(%) | (%) | (%) | (%) | (%) | (%) | (%) | (%) | (1050℃) | |
45-56 | 38-45 | 0.15-0.30 | 0.2-0.5 | 0.02 | 0.5-1.5 | 0.03 | 0.007 | 1-8 | 9 |
Size: 80mesh, 100mesh,120mesh,150mesh,170mesh,200mesh,325mesh,400mesh.
Physical Index of Wollastonite ：
Items | Index |
Draw Ratio | 5:1-3:1 |
PH Value | 9.9-10.0 |
Oil Absorption(g/100g） | 20-30 |
Whiteness（%） | ＞80 |
Refractive Index（%） | 1.63 |
Density(g/cm2) | 2.95 |
Expansion Coefficient(mm/mm℃) | 6.5×106 |
Melting Point(℃) | 1450 |
Hardness (Mohs) | 4.5-5.0 |
Packing:
Packing: 1 mt/bag or 25kg/bag, or as per customer’s requirement.
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