Foaming ceramic and preparation method thereof

By using pre-treated and modified waste raw materials to form a porous structure and stable pores, the problems of high resource consumption and insufficient performance of existing foamed ceramics are solved, the preparation of high-performance foamed ceramics is achieved, the thermal insulation, pressure resistance and waterproof properties are improved, and environmental pollution is reduced.

CN120647336APending Publication Date: 2025-09-16DAYE QISHI GARDENING CO LTD
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Patent Information

Application Number
CN202510799242.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-16
Publication Date
2025-09-16

AI Technical Summary

Technical Problem

Existing foam ceramic production relies on a large amount of natural raw materials, resulting in high resource consumption and high production costs. The products have limitations in thermal insulation, pressure resistance, and waterproof performance, and cannot meet the needs of modern buildings for energy-saving, environmental protection, and high-performance materials.

Method used

Waste cathode carbon blocks, rice husk ash, fly ash and basalt fiber are used as the main raw materials, and through pretreatment and modification, porous structure and stable pores are formed. Combined with nano-modification and glass phase filling, the thermal insulation, compression resistance and waterproof performance of the material are improved.

Benefits of technology

The prepared foamed ceramics have excellent thermal insulation, compressive strength and waterproof performance, reduce resource consumption and environmental pollution, realize the recycling of waste and reduce production costs.

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Abstract

The invention relates to the technical field of foamed ceramics, in particular to a foamed ceramic and a preparation method thereof. The foamed ceramic comprises the following raw materials in parts by weight: 30-50 parts of waste cathode carbon blocks, 15-30 parts of rice hull ash, 15-30 parts of fly ash, 3-10 parts of calcium carbonate, 3-10 parts of expanded perlite and 2-5 parts of basalt fibers. According to the invention, the waste cathode carbon block is pretreated to form a porous structure, the porous structure and gas decomposed by calcium carbonate are jointly used as a gas source at a high temperature to generate initial pores, and a glass phase formed after rice hull ash activation has certain fluidity during sintering, and can fill pores, adjust pore surface tension and promote uniform expansion of the pores; the basalt fibers are inserted into the matrix in a three-dimensional bracket form, and collapse of pores due to high-temperature shrinkage or gas escape is prevented through physical support, so that the stability and uniformity of the pore structure are ensured, and the heat insulation performance of the foamed ceramic is improved.
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