High-porosity foamed ceramic insulation board and preparation method thereof

Abstract

The invention provides a high-porosity foamed ceramic insulation board and a preparation method thereof, and relates to the field of thermal insulation materials. The high-porosity foamed ceramic insulation board is prepared from the following raw materials in parts by weight: 100-120 parts of electrolytic manganese slag, 60-70 parts of red mud, 10-14 parts of basalt fiber, 12-20 parts of graphene, 20-25 parts of potassium-sodium feldspar, 5-10 parts of dolomite, 10-20 parts of chlorite, 10-20 parts of serpentine, 10-20 parts of coal gangue, 2-5 parts of aluminum oxide, 1-3 parts of terbium oxide, 1-3 parts of antimony oxide, 1-3 parts of boric acid, 10-15 parts of bentonite, 1-5 parts of silicon carbide, 1-5 parts of fluorite, 20-40 parts of modified sodium bicarbonate, 2-4 parts of chitosan, 6-12 parts of sodium hexametaphosphate, 10-18 parts of carboxymethyl cellulose, 5-10 parts of a stabilizer and 300-400 parts of water. The foamed ceramic insulation board provided by the invention has extremely high compressive strength, extremely low thermal conductivity coefficient and volume density, excellent insulation performance and high flame retardant grade, and does not combust.

Description

technical field [0001] The invention relates to the field of thermal insulation materials, in particular to a high-porosity foamed ceramic thermal insulation board and a preparation method thereof. Background technique [0002] Foamed ceramics is a porous ceramic material with a porosity of more than 50%. Its development began in the 1970s. It is used in building fireproof materials and sound insulation materials because of its light weight, high strength, high temperature resistance, heat preservation, and sound insulation. . [0003] The research work of foamed ceramics in China started earlier. In the past ten years, relevant reports on the preparation of foamed ceramics have emerged one after another. However, there is still a big gap in the preparation technology, equipment, and product quality compared with foreign countries. Ceramic foam is a porous ceramic body with high porosity and three-dimensional grid structure, and its shape is like tempered foam plastic or po...

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Problems solved by technology

[0003] The research work of foamed ceramics in China started earlier. In the past ten years, relevant reports on the preparation of foamed ceramics have emerged one after another, but there is still a big gap in the preparation technology, equipment, and product quality compared with foreign countries.

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