Amino acid anionic-cationic surfactant based composite foaming agent

Abstract

The invention discloses an amino acid anionic-cationic surfactant based composite foaming agent. The composite foaming agent is prepared by mixing an amino acid anionic surfactant with an amino acid cationic surfactant at a mass ratio of 1:(1-4), wherein the amino acid anionic surfactant is sodium lauroyl glycine, sodium palmitoyl glycine or sodium octadecanoyl glycine, and the amino acid cationic surfactant is dodecyl trimethyl ammonium bromide, hexadecyl trimethyl ammonium bromide or octadecyl trimethyl ammonium bromide. Because the two different types of surfactants act synergistically, the surface tension of the amino acid anionic-cationic surfactant based composite solution can be reduced, the thickness of the foam film can be increased effectively, and further the strength of the foam can be enhanced. The composite foaming agent disclosed by the invention contains a few components, does not contain any additive, can foam quickly in quantity and has good stability.

Description

technical field [0001] The invention belongs to the technical field of fine chemicals and light inorganic materials, and specifically relates to an amino acid anion-cation surfactant composite foaming agent. Background technique [0002] Surfactant compound foaming agent is widely used, generally used to prepare lightweight concrete. The addition of surfactant can reduce the surface tension of the system solution, so that water is easy to be evenly distributed on the solid surface in a thin film state. Increase the dispersibility of cement paste. According to the electrical property and electricity difference between cement and surfactant, the electric charge between the two makes the surfactant and cement slurry uniformly dispersed and forms a stable foam cement gel material. At present, the lightweight soil foaming agent on the domestic market is the fourth generation composite foaming agent, which solves the problem of poor performance of a single-component foaming agent...

AI Technical Summary

Problems solved by technology

However, the addition of thickener polyacrylic acid resin will lead to a decrease in foaming power, and the modified diatomite used can effectively prevent the attenuation of the thickness of the foam liquid film and increase the liquid loss resistance in the liquid film, so as to achieve stability. Bubble effect, but its preparation process is complicated, and the reagent components used for modification are more

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