High-strength geopolymer closed-cell foam material prepared from silicon carbide, and preparation method thereof

Abstract

The invention discloses a high-strength geopolymer closed-cell foam material prepared from silicon carbide. The high-strength geopolymer closed-cell foam material comprises the following raw materialsin parts by weight: 45-60 parts of silicon-aluminum mineral raw material, 10-15 parts of sodium hydroxide solid, 45-60 parts of sodium silicate solution, 15-25 parts of quartz powder, 2-4 parts of mica powder, 2-3 parts of organic fiber, 8-12 parts of silicon carbide powder, 3-4 parts of aluminum powder, 3-5 parts of lauryl sodium sulfate, 0.4-0.6 part of a grinding aid, and 10-15 parts of deionized water. The invention also discloses a preparation method of the high-strength geopolymer closed-cell foam material prepared from silicon carbide. According to the invention, the geopolymer foamingmaterial which mainly comprises closed pores, is uniform in pore distribution and is controllable in pore size is prepared by regulating and controlling the ratio of the raw materials, the content ofsilicon carbide and the particle size of silicon carbide; and the silicon carbide, the quartz powder, the mica powder, the organic fibers and the compound raw materials are used, so that the foamingmaterial has the properties of low density, high mechanical strength, high toughness, strong high-temperature resistance and corrosion resistance.

Description

technical field [0001] The invention belongs to the technical field of manufacturing novel porous inorganic non-metallic materials, and in particular relates to a high-strength closed-cell geopolymer foam material prepared by silicon carbide and a preparation method thereof. Background technique [0002] Geopolymer (Geopolymer) is an inorganic gelling material formed by activating a silicon-aluminum compound raw material with a base activator. The concept was first proposed by J.Davidovits in the late 1990s, and the corresponding research has developed rapidly since then. The field of new geopolymer building materials has broad application prospects, not only because of its high strength, corrosion resistance, and high temperature resistance, but also because of its green and low-carbon production process, which is in line with the sustainable development concept advocated by the country. [0003] Porous geopolymers can be used as lightweight materials in the fields of filt...

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Problems solved by technology

[0008] In order to overcome the deficiencies of uneven foaming, difficult control of pore structure and low foam strength caused by foaming agents such as organic matter and hydrogen peroxide in the prior art, the present invention provides a high-strength polymer closed-cell foaming material prepared by silicon carbide And the preparation method thereof can effectively control the foaming strength, the number of foams and the pore size, and obtain a rich closed-cell structure, and the preparation method is simple, fast, and environmentally friendly

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