Method for preparing aperture-controllable low-temperature foam glass

Abstract

The invention discloses a method for preparing aperture-controllable low-temperature foam glass. The foam glass mainly comprises the following raw materials: a fluxing agent, a foam stabilizer, a foaming agent and glass powder. The preparation method comprises the following steps of carrying out wet mixing on the fluxing agent, the foam stabilizer and the foaming agent, drying and then grinding to form a mixture, carrying out wet mixing on the mixture and glass powder, molding, carrying out heat treatment under a high temperature condition and annealing to obtain the high-performance foam glass. In the preparation process, by changing the mixing ratio and particle sizes of the foam stabilizer, the foaming agent and the glass powder, the aperture and pore structure of the foam glass are adjusted. The preparation method disclosed by the invention has the advantages that the process is simple, the preparation energy consumption is less and the production cost can be effectively reduced; the prepared foam glass has sound absorption, heat preservation and thermal insulation effects, belongs to the national Class A fireproof material and can be widely used in indoor as thermal insulation, sound absorption and fireproof materials; since the foam glass material prepared by the method disclosed by the invention is mainly prepared from waste glass, the environmental pollution is reduced and the resource reutilization is achieved.

Description

technical field [0001] The invention relates to a preparation method of low-temperature foam glass with controllable pore size. Background technique [0002] With the development of society, solving the environmental pollution caused by construction waste has become an urgent problem to be solved, especially architectural glass, because glass is an inorganic substance, the natural degradation rate is slow, and the heavy metal contained in glass is easy to cause water pollution. In the last century, the French Saint-Gobain company first successfully developed foam glass with calcium carbonate as the blowing agent. Subsequently, the former Soviet Union also experimentally produced foam glass in the intermediate pilot plant of Mendeleev Institute of Chemical Technology. The use of waste glass to prepare foam glass has received widespread attention and research. The use of waste glass to prepare foam glass can not only solve the role of waste glass in polluting the environment, ...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the above-mentioned problems existing in the prior art, the present invention provides a preparation method of low-temperature foam glass with controllable pore size, the purpose of which is to reduce the foaming temperature, reduce the production cost, and solve the problem of dust pollution caused by dry mixing. At the same time, the present invention The invention realizes the control of the pore size and pore structure of foam glass by changing the mixing ratio of raw materials and the particle size of raw materials