Amino acid anionic-cationic surfactant based composite foaming agent

A surfactant and amino acid technology, applied in the field of amino acid anionic-cationic surfactant composite foaming agents, can solve the problems of reduced foaming force, complicated preparation process, and many reagent components, and achieves large foam volume, The effect of improving interaction and good compatibility

CN104446088AInactive Publication Date: 2015-03-25SHAANXI NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2015-03-25
Estimated Expiration
Not applicable · inactive patent

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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.
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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...

Examples

Embodiment 1

[0017] Mix 0.33g sodium lauryl glycinate and 0.67g cetyltrimethylammonium bromide evenly to obtain an anion-cation surfactant composite foaming agent.

Embodiment 2

[0019] Mix 0.25g sodium laurylglycinate and 0.75g cetyltrimethylammonium bromide evenly to obtain an amino acid anion-cation surfactant composite foaming agent.

Embodiment 3

[0021] 0.20 g of sodium lauryl glycinate and 0.80 g of cetyltrimethylammonium bromide were uniformly mixed to obtain an amino acid anion-cation surfactant composite foaming agent.