Graphite base heatproof and heat insulating material and production technique thereof

Abstract

The invention discloses a graphite-based temperature-resistant thermal insulation material and a production technology thereof. The material comprises the following components: 15-30wt percent of graphite powder, 18-28wt percent of sepiolite, 8-15wt percent of inorganic foaming agent, 5-20wt percent of inorganic adhesive, 6.4-32wt percent of high-quality cement, and other auxiliary agents as the rest; and the insulation material is obtained by stirring and mixing, molding, and curing. The invention also provides the production technology of the graphite-based temperature-resistant thermal insulation material, one is that after stirring, mixing and molding, the raw materials are naturally dried or dried and cured by using a drying oven; and the other is that after stirring, mixing and molding, the raw materials are sintered and cured. The invention has easily obtained raw materials with low price, simple production technology, convenient operation, good high-temperature resistant and thermal insulating performance of products, light weight, large mechanical strength and low thermal conductivity coefficient, and can be widely used in the fields of construction, petrochemical industry, metallurgy, and the like.

Description

technical field [0001] The invention relates to a temperature-resistant and heat-insulating material containing graphite powder and a preparation method thereof, in particular to a heat-insulating material used for building wall heat preservation and a production process thereof. Background technique [0002] At present, there are many kinds of materials used in building thermal insulation, and the ratio of raw materials is different, and the performance gap is large. Rock wool is the first material used in building insulation. It is easy to absorb water, not resistant to open fire, severe natural weathering, irritating to the skin, short service life, difficult to redecorate, etc., and is gradually replaced by later materials; Glass wool and its products are a kind of light weight and good heat insulation material after rock wool, mainly in the form of boards, felts, shells, decorative ceilings and other product forms. ℃; aluminum silicate fiber is also called refractory f...

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Problems solved by technology

Rock wool is the first material used in building insulation. It is easy to absorb water, not resistant to open fire, severe natural weathering, irritating to the skin, short service life, difficult to redecorate, etc., and is gradually replaced by later materials; Glass wool and its products are a kind of light weight and good heat insulation material after rock wool, mainly in the form of boards, felts, shells, decorative ceilings and other product forms. ℃; aluminum silicate fiber is also called refractory fiber, which is mainly used as kiln insulation material, and there are many varieties. It is a medium and low-grade product; high-grade products such as polycrystalline mullite fiber, polycrystalline alumina fiber and polycrystalline zirconia fiber have relatively high prices; foamed plastics are made of synthetic resin, and there are countless small Porous plastic products, which have the advantages of low thermal conductivity and easy processing and molding, have also begun to be used in construction. The main products are polystyrene foam and polyurethane foam, but they are difficult to combine with walls in the field of construction. One-piece, tilting, low temperature resistance, difficult secondary decoration and other problems, with the strict requirements on materials for building fire protection, the large-scale application of this type of building insulation materials has been limited to a certain extent

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