Superfine Wollastonite Lump Use In Fillings In China
Introduction
Acicular wollastonite, as calcic metasilcate mineral, is a new kind of industrial raw mineral materials. At present, it’s mainly applied to ceramic industry, and secondly used as metallurgy protecting slag and paint. Further, it can be used as electrode coating, mountain cork substitute, abradant binding agent, compound of glass and stuffing of rubber, plastic, insulating material and paper. Some wollastonite can be used as finishing material of building or compound of white cement.
Main technical indicators
Name | CaO | SiO2 | Fe2O3 | whiteness | Activation grade | Mesh | LOI | H2O | Length- Diameter ratio | Settling volume |
|
Acicular wollastonite | 44-46 | 48-53 | ≤0.3 | ≥88 | ≥90 | 600-1250 | ≤3.5 | ≤0.2 | 10-20:1 | ≥50ml/15g |
Applications
Used in plastics or rubber to improve the tensile strength and flexural strength, heat performance and surface color and reducing costs. Used as reinforcing filler in paint to improve the paint's physical and chemical performance, durability and weather durability, reduce the paint's fault and aging.