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Preparation method of foam stabilizer for concrete foaming agent

A foaming agent and concrete technology, applied in the field of chemical building materials, can solve the problems of floc formation and poor foam stabilization performance, and achieve the effect of improving water mobility and reducing the generation of flocs

Inactive Publication Date: 2018-06-15
周荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: the foam stabilizer used in the foaming agent currently on the market mostly uses cellulose, starch, etc., but it is easy to form flocs when mixed with the solution, resulting in poor foam stabilizing performance. Provide A kind of preparation method of foam stabilizer for concrete foaming agent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0014] A preparation method of a foam stabilizer for a concrete foaming agent, the preparation method comprising the steps of:

[0015] (1) Put the saponins into a pulverizer to get pulverized products. According to the mass ratio of 1:3~4, put the pulverized products and 1.2mol / L sodium hydroxide solution into a container, and heat to 100~110℃ , stirred for 30-40 minutes to obtain the agitated substance, and mixed the agitated substance and the air-entraining agent according to the mass ratio of 3-4:1-2 to obtain the mixture;

[0016] (2) According to the mass ratio of 7~8:1~2:10~15, put potato starch, guar gum, and water into the mixer for mixing, and stir at 100~200r / min for 5~10min to get Mix the stirrer, heat the mixed stirrer at a temperature of 50-95°C, keep it warm for 5-10 minutes, and obtain the heat preservation material;

[0017] (3) According to the mass ratio of 10~15:4~5, mix the mixture and heat preservation material, and stir at a high speed of 1200~1400r / min...

example 1

[0019] The air-entraining agent is fatty alcohol polyoxyethylene ether.

[0020] A preparation method of a foam stabilizer for a concrete foaming agent, the preparation method comprising the steps of:

[0021] (1) Put the saponins into a pulverizer and pulverize to get the pulverized product. Put the pulverized product and 1.2mol / L sodium hydroxide solution into a container at a mass ratio of 1:3, heat to 100°C, and stir for 30 minutes. To obtain the stirrer, mix the stirrer and the air-entraining agent according to the mass ratio of 3:1 to obtain the mixture;

[0022] (2) According to the mass ratio of 7:1:10, put potato starch, guar gum, and water into the mixer for mixing, and stir at 100r / min for 5 minutes to obtain a mixed mixture, and heat the mixed mixture , the temperature is 50°C, keep warm for 5 minutes, and get the heat preservation material;

[0023] (3) According to the mass ratio of 5:2, mix the mixture and heat preservation material, and stir at a high speed o...

example 2

[0025] The air-entraining agent is sodium dodecylbenzenesulfonate.

[0026] A preparation method of a foam stabilizer for a concrete foaming agent, the preparation method comprising the steps of:

[0027] (1) Put the saponins into a pulverizer to get pulverized products. According to the mass ratio of 1:4, put the pulverized products and 1.2mol / L sodium hydroxide solution into a container, heat to 110°C, and stir for 40 minutes. To obtain the stirrer, mix the stirrer and the air-entraining agent according to the mass ratio of 2:1 to obtain the mixture;

[0028] (2) According to the mass ratio of 8:2:15, put potato starch, guar gum, and water into the mixer for mixing, and stir at 200r / min for 10 minutes to obtain a mixed mixture, and heat the mixed mixture , the temperature is 95°C, heat preservation for 10 minutes, and heat preservation material is obtained;

[0029] (3) According to the mass ratio of 3:1, mix the mixture and heat preservation material, and stir at a high s...

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Abstract

The invention discloses a preparation method of a foam stabilizer for a concrete foaming agent and belongs to the field of chemical building materials. The preparation method utilizes potato starch and guar gum to prepare the foam stabilizer. In the starch gelatinization process, the starch granules expand to the limit, the interaction between the starch chain and the moisture is promoted at a high temperature, and through use of guar gum, the starch granule expansion is inhibited, the dissolved starch chains are reduced so that the water motility is further improved and the floc formation isreduced. The potato starch and the guar gum have strong viscosity, through use of the potato starch and the guar gum, the foam liquid film viscosity is improved, the liquid on two surfaces of the liquid film are not easily discharged, and a liquid film thinning rate is reduced so that the time of foam rupture is prolonged and the foam stability is improved. The existing foaming agent in the marketutilizes cellulose and starch and easily forms floc in mixing with the solution so that the foam stability is reduced.

Description

technical field [0001] The invention relates to the field of chemical building materials, in particular to a method for preparing a foam stabilizer for concrete foaming agents. Background technique [0002] Foaming agent is a kind of substance that can make the aqueous solution produce a large amount of foam when mechanical force is introduced into the air. The foam produced by the foaming agent is added to the slurry composed of siliceous materials, calcium materials, water and various admixtures, stirred, shaped, and maintained to form foamed concrete. The development of foam concrete foaming agent in China is roughly divided into three stages. In the first stage, in the early 1950s, my country successfully applied rosin soap and rosin thermal polymer to the production and application of foam concrete; in the second stage, the upper In the 1980s, surfactant-based foaming agents were successfully developed and widely used in the production of foamed concrete; in the third s...

Claims

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Application Information

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IPC IPC(8): C04B24/38C04B103/48
CPCC04B40/0039C04B2103/48C04B24/00C04B22/062C04B24/32C04B24/38C04B24/20
Inventor 高玉梅刘蓉凤刘沁
Owner 周荣
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