It is reported that in January 2004, Japan invented a highly efficient porous ceramic insulation material. It overcomes the different defects of organic and inorganic heat insulation materials, has the characteristics of non-combustible, non-hygroscopic, durable and good heat insulation, and can be widely used in industrial furnaces, drying rooms, building insulation and so on.
This material is prepared by mixing, stirring, foaming, and gelatinizing aluminate slurries containing sodium silicate, ceramic powders, surfactants, and metal aluminum powder as the main components, and then forming a porous hydrogel body. Filtration, removal of sodium, drying and firing. The ceramic has a very high porosity and can fully exhibit the heat insulation function. The pore structure is homogeneous, the flexural strength is high, and it is easy to process and shape.
Porous ceramic insulation material available in Japan
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