What’s soluble ceramic fiber?
1. As a fibrous light refractory, the ceramic fiber is combined with excellent performance of traditional thermal insulation material and refractory material. Involved in many areas and widely used in various industry departments, its product can be seen as base material used to improve the thermal performance of thermal equipment like the industrial furnace and heating device, and realize structure lightening and energy saving; 2. It boasts low thermal conductivity, good thermal stability and chemical stability without corrosivity. The brake lining made from the fiber possesses high temperature resistance and dispersity, and is suitable for all sorts of blender mixers to stir; 3. It’s applicable for brake linings with requirements on high temperature resistance, thermal recovery and little noise in the brake area.
When the ordinary ceramic fiber is inhaled into human lungs, it cannot be pushed out. As time goes by, it is likely for people to suffer from the occupational disease of pneumoconiosis. As a kind of environmental inorganic fiber, the soluble ceramic fiber is also called soluble-in-lung fiber, and when it is inhaled into the lung, it can dissolve slowly in human body fluids, seldom causing harm to human health.
It’s alkali earth ceramic fiber with main components of SiO2, MgO, and CaO. With certain solubility in the human body fluid to be less harmful to human health, it is called soluble ceramic fiber. The introduction of such components as MgO, CaO, etc. in the soluble ceramic fiber, on one hand, is conducive to extending the viscosity range of and conditions for the fiber forming, enhancing the chance of fiber forming and the flexibility of fibers. On the other hand, it produces low melting compounds like CaO?SiO2, CaO ·Mgo·2SiO2 etc, decreasing the heat resistance of the fiber. Therefore, the ordinary soluble fiber belongs to inferior ceramic fiber, and its product is mainly used as backing material for the industrial furnace. To realize the improvement of heat resistance of soluble fiber, the method of adding ZrO2 into it is adopted, increasing the viscosity of glass phase and inhibiting the growth rate of grains after the fiber is heated and crystallized.
