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Preparation method of efficient and stable special foaming agent for gypsum

A foaming agent, stable technology, applied in the field of preparation of high-efficiency and stable foaming agent, can solve the problems of high foaming ratio and poor foam stability, and achieve the effect of uniform distribution of cells, enhanced strength and small diameter

Inactive Publication Date: 2016-04-13
WUHAN WUDA BOSHUOYUAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of foaming agent has high foaming ratio and low cost, but the foam stability is poor

Method used

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  • Preparation method of efficient and stable special foaming agent for gypsum
  • Preparation method of efficient and stable special foaming agent for gypsum
  • Preparation method of efficient and stable special foaming agent for gypsum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013]

[0014]

[0015] Mix 32.4g of sodium dodecylbenzenesulfonate, 28.8g of sodium dodecylsulfate, and 63g of sodium α-alkenylsulfonate, respectively, and use a high-pressure air foaming machine to prepare foaming mother liquor, and then add polyether Modified silicone oil 27g, urea 10.8g, thickener carboxymethyl cellulose 10.8g, foam stabilizer silicone resin polyether emulsion 7.2g, mix well.

Embodiment 2

[0017]

[0018] Mix 40g of sodium dodecylbenzenesulfonate, 50g of sodium dodecylsulfate, and 75g of sodium α-alkenylsulfonate, respectively, and use a high-pressure air foaming machine to prepare foaming mother liquor, and then add polyether to modify Silicone oil 40g, urea 20g, thickener carboxymethyl cellulose 15g, foam stabilizer silicone resin polyether emulsion 10g, mix well.

Embodiment 3

[0020]

[0021]

[0022] 75.6g of sodium dodecylbenzenesulfonate, 67.2g of sodium laurylsulfate, and 155.4g of sodium α-alkenylsulfonate were mixed respectively, and foamed by a high-pressure air foaming machine to prepare a foaming mother liquor, and then poly 58.8g of ether-modified silicone oil, 16.8g of zinc carbonate, 33.6g of thickener carboxymethyl cellulose, 12.6g of foam stabilizer silicone resin polyether emulsion, and mix well.

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PUM

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Abstract

The invention discloses a preparation method of an efficient and stable special foaming agent for gypsum. The foaming agent comprises, by weight, 15-30% of sodium dodecyl benzene sulfonate, 15-30% of sodium dodecyl sulfate, 15-40% of sodium alpha-olefin sulfonate, 12-18% of polyether modified silicone oil, 2-10% of an activator, 5-12% of a thickener and 1-7% of a foam stabilizer. The preparation method comprises the following steps: proportioning all anionic surfactants according to a certain ratio at normal temperature, foaming the obtained mixture through a high-pressure air foaming machine to prepare a foaming mother liquor, sequentially adding other modifiers, and uniformly mixing obtained materials. The foaming agent is used for preparing light gypsum base building materials, and has the advantages of high foaming rate, good stability and enhancement of the strength of the gypsum building materials.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a method for preparing an efficient and stable foaming agent for preparing gypsum-based building materials. Background technique [0002] The foaming agent is the primary raw material for the preparation of lightweight gypsum building materials. The foam produced by the foaming agent must have sufficient stability and flexibility, be able to withstand the collision of the rotating shaft and the extrusion of hard objects without bursting, and at the same time be able to be compatible with the gypsum substrate. Good compatibility, and does not affect the normal setting of gypsum. The gypsum building material can only greatly reduce the thermal conductivity and have thermal insulation and thermal insulation properties only by forming a large number of closed and small cells through foam molding. At the same time, the compressive strength of gypsum drops sharply after foa...

Claims

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Application Information

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IPC IPC(8): C04B24/42C04B38/10C04B28/14C04B103/42
CPCC04B40/0039C04B28/14C04B2103/42C04B24/16C04B2103/48C04B2103/44C04B2103/10C04B24/42C04B24/383C04B24/126C04B22/10C04B38/106
Inventor 黄澄华李训生金广泉吴荣陈雪娟李菁
Owner WUHAN WUDA BOSHUOYUAN TECH CO LTD
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