CN102898064A - Cement composite foaming agent as well as preparation method thereof and application thereof - Google Patents
Cement composite foaming agent as well as preparation method thereof and application thereof Download PDFInfo
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- CN102898064A CN102898064A CN2012104108567A CN201210410856A CN102898064A CN 102898064 A CN102898064 A CN 102898064A CN 2012104108567 A CN2012104108567 A CN 2012104108567A CN 201210410856 A CN201210410856 A CN 201210410856A CN 102898064 A CN102898064 A CN 102898064A
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Abstract
The invention relates to a cement composite foaming agent as well as a preparation method thereof and an application thereof; the foaming agent is prepared by the following components in percentage by weight: 2.0-10.0 % of foaming agent, 0.5-5.0 % of foam assisting agent, 0.5-5.0 % of foam stabilizer, 0.1-2.0 % of preservative and 78.0-96.9 % of water; and the preparation method comprises the following steps of: dissolving the foam stabilizer in water so as to prepare a colloidal solution with mass percentage of 10%; naturally cooling the colloidal solution for future use; adding the foaming agent, the foam assisting agent, the foam stabilizer solution and the preservative to the rest water in sequence at the same time of stirring; uniformly stirring a mixture to obtain a cement composite foaming agent; adding water to the cement composite foaming agent so as to dilute the cement composite foaming agent by 20-50 times; and adding the diluted cement composite foaming agent to a foam generator for foaming, wherein obtained foams can be applied to cement-base foam concrete. Compared with the prior art, the cement composite foaming agent provided by the invention has the advantages of strong foaming capacity, good stability, no mildew, cheap price and good applicability to a cement paste.
Description
Technical field
The present invention relates to a kind of foaming agent and preparation method thereof, especially relate to a kind of cementitious composite foaming agent and preparation method thereof, belong to building material technical field.
Background technology
Along with the enforcement of national energy-saving reduction of discharging and wall reform policy, various light heat insulation materials become one of primary study direction.Foamed concrete material with its environmental protection, do not fire, advantage durable, light thermal-insulation receives publicity.Foaming agent claims again whipping agent, refers to reduce surface tension of liquid, produces a large amount of uniform and stable foams, is the admixture of producing foamed concrete.The key issue of producing foamed concrete is the preparation foaming agent, and the material that can produce foam is a lot, but is not the production that all materials that can produce foam can both be used for foamed concrete.Only the unlikely destruction of film when foam and slip mix has enough stability, to condensing and the foaming agent of the harmful effect that can not harden of gelling material, just can be used for producing foamed concrete.
Froth stability and foaminess are in actual applications most important two properties of foam.The stability of foam is the salient features of foam, and good foaminess is the prerequisite of research froth stability.The factor that affects the foaming agent froth stability is intricate, the process that foam destroys mainly be separate gas liquid film by thick attenuation until the process of breaking, therefore, the stability of foam depends mainly on the intensity of discharge opeing speed and liquid film.Foam is a kind of metastable system, affects its stable factor comparatively complicated.
Cause the reason of bubble destruction that three aspects of diffusion of gas in gravity discharge opeing, surface tension discharge opeing, the bubble are arranged.Can find out from above three aspects, the stability of foam self depends primarily on speed that liquid separates out and the intensity of liquid film, and the viscoelasticity that increases the viscosity of solution and liquid film exactly can solve the problem of this three aspects:.Adopt to add a small amount of surfactant and gelatinoid in whipping agent, over time as the whipping agent Performance Evaluating Indexes, inquired into them to the effect of improving of the foaminess of whipping agent and froth stability with foam height and lather volume.Mix surface-active substance and the jelly with foam stability by singly blending is two respectively to whipping agent, improve the stability of foam.Mix material and be divided into two classes according to the mode of action: the first kind is to reduce surface tension of liquid, improves the quality of foam film, increases the viscoelasticity of film, reduces the ventilation property of foam, the stability of reinforced foam; Equations of The Second Kind is to increase emplastic, the discharge opeing speed of slowing down foam by improving the liquid phase viscosity, thereby the stability of raising foam.By the modified test to foaming power and the froth stability of expanding foam solution, analyze the relatively impact of filler confrontation froth stability, and definite best modified material and volume, thereby help the further use of whipping agent in the foamed concrete preparation, also foamed concrete is played promoter action in the popularization of building field.
At present, foaming agent mainly contains following a few class: the one, and the agent of colophonium pyrolytic polymer class A foam A, main component is sodium abietate, and its manufacturing process is simple, and material cost is lower, but its foamy body is also relatively poor, and steady time is short.The 2nd, the eggwhite type foam agent.Can be divided into animal-type albumen and vegetable-protein type foaming agent, this class A foam A is abundant, fine and closely woven, but price is higher and easily go mouldy.The 3rd, the agent of chemosynthesis class A foam A, it has good latherability, becomes in recent years the main product of foaming agent.The bubble wall is thin, the shortcoming of poor stability but this foaming agent exists.Thereby, develop all good and lower-cost foaming agents of a kind of whipability, foam stability and have undoubtedly very high practical value.
Summary of the invention
Purpose of the present invention be exactly provide in order to overcome the defective that above-mentioned prior art exists that a kind of latherability is strong, stability good, low price and with good cementitious composite foaming agent of cement slurry suitability and preparation method thereof.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of cementitious composite foaming agent, made by the raw material of following component and weight percent content:
The preferred following weight percent of the contained component of this foaming agent:
Described pore forming material is selected from one or more in aliphatic alcohol polyethenoxy carboxylic acid sodium (AEC), phthalic acid alkylsulfonate, monoester fatty alcohol sodium salt, aliphatic alcohol sulfate, alkyl alcohol polyoxyethylene sodium sulfate (AES) or the sodium alkyl benzene sulfonate.
Described foaming aids is selected from one or more in fatty acid ethanol amide, fatty acid diethanolamine or the polyoxyethylene fat acyl alcohol amine.
Described suds-stabilizing agent is selected from one or more in gelatin, saponin, polyvinyl alcohol, methylcellulose gum, hydroxypropyl starch ether or the hydroxyethylamyle.
Described sanitas is selected from one or more in phenylformic acid and its esters, Sorbic Acid and its esters or dehydroacetic acid (DHA) and the sodium salt class.
A kind of preparation method of cementitious composite foaming agent, the method may further comprise the steps:
(1) gets the raw materials ready according to following component and weight percent content: pore forming material 2.0～10.0, foaming aids 0.5～5.0, suds-stabilizing agent 0.5～5.0, sanitas 0.1～2.0, water 78.0～96.9;
Under (2) 50 ℃, be 10% colloidal solution with the suds-stabilizing agent massfraction that is made into soluble in water, naturally cooling is stand-by;
(3) successively pore forming material, foaming aids, suds-stabilizing agent solution and sanitas are added in the remaining water while stirring, stir and namely get the cementitious composite foaming agent.
A kind of application of cementitious composite foaming agent: behind 20～50 times of cementitious composite foaming agent thin ups, add in the frothing machine and foam, the gained foam can be applicable in the cement based foamed concrete.
Compared with prior art, the present invention has the following advantages and beneficial effect;
Cementitious composite foaming agent of the present invention is liquid, can dilute with vast scale, foaming at normal temp, foam expansion is large, cheap, economical and practical, do not go mouldy, foam and cement-based material are stirred, can natural setting and harden moulding, make various light cement base foam materialss (such as foam cement, foamed concrete, light weight concrete etc.), the bubble because material internal gathers, thereby lightweight, can greatly alleviate buildings weight, have insulation, heat insulation, sound insulation, antidetonation, do not fire, durable, nontoxic, environmental protection can be followed closely and can be sawed, the characteristics such as speed of application is fast, thereby the purpose of energy-saving and emission-reduction.
Embodiment
The present invention is described in detail below in conjunction with specific embodiment.
Embodiment 1
A kind of cementitious composite foaming agent, made by the raw material of following component and weight percent content:
A kind of preparation method of cementitious composite foaming agent, the method may further comprise the steps:
(1) gets the raw materials ready according to following component and weight percent content: pore forming material 4.0 (wherein, aliphatic alcohol polyethenoxy carboxylic acid sodium 2.0, phthalic acid alkyl sodium sulfonate 2.0), foaming aids 0.8 (fatty acid ethanol amide), suds-stabilizing agent 0.9 (methylcellulose gum), sanitas 0.3 (Sodium Benzoate), water 94.0;
Under (2) 50 ℃, be 10% colloidal solution with the suds-stabilizing agent massfraction that is made into soluble in water, naturally cooling is stand-by;
(3) successively pore forming material, foaming aids, suds-stabilizing agent solution and sanitas are added in the remaining water while stirring, stir and namely get the cementitious composite foaming agent.
Behind 30 times of cementitious composite foaming agent thin ups, adopt foam expansion, 1h sedimentation distance and the bleeding quantity of Luo Sifa test foaming agent and the situation of going mouldy of observing foaming agent.The performance of cementitious composite foaming agent sees Table 1.
Embodiment 2
A kind of cementitious composite foaming agent, made by the raw material of following component and weight percent content:
A kind of preparation method of cementitious composite foaming agent, the method may further comprise the steps:
(1) get the raw materials ready according to following component and weight percent content: pore forming material 5.0 (wherein, phthalic acid alkyl sodium sulfonate 2.0, sodium alkyl sulfate 3.0), foaming aids 0.6 (fatty acid diethanolamine), suds-stabilizing agent 1.3 (wherein, saponin 0.3, gelatin 1.0), sanitas 0.3 (Sodium dehydroacetate), water 92.8;
Under (2) 50 ℃, be 10% colloidal solution with the suds-stabilizing agent massfraction that is made into soluble in water, naturally cooling is stand-by;
(3) successively pore forming material, foaming aids, suds-stabilizing agent solution and sanitas are added in the remaining water while stirring, stir and namely get the cementitious composite foaming agent.
Behind 30 times of cementitious composite foaming agent thin ups, adopt foam expansion, 1h sedimentation distance and the bleeding quantity of Luo Sifa test foaming agent and the situation of going mouldy of observing foaming agent.The performance of cementitious composite foaming agent sees Table 1.
Embodiment 3
A kind of cementitious composite foaming agent, made by the raw material of following component and weight percent content:
A kind of preparation method of cementitious composite foaming agent, the method may further comprise the steps:
(1) get the raw materials ready according to following component and weight percent content: pore forming material 5.0 (wherein, sodium alkyl benzene sulfonate 2.5, sodium alkyl sulfate 2.5), foaming aids 0.6 (fatty acid diethanolamine), suds-stabilizing agent 1.1 (wherein, saponin 0.6, polyvinyl alcohol 0.5), sanitas 0.3 (Sodium dehydroacetate), water 93;
Under (2) 50 ℃, be 10% colloidal solution with the suds-stabilizing agent massfraction that is made into soluble in water, naturally cooling is stand-by;
(3) successively pore forming material, foaming aids, suds-stabilizing agent solution and sanitas are added in the remaining water while stirring, stir and namely get the cementitious composite foaming agent.
Behind 30 times of cementitious composite foaming agent thin ups, adopt foam expansion, 1h sedimentation distance and the bleeding quantity of Luo Sifa test foaming agent and the situation of going mouldy of observing foaming agent.The performance of cementitious composite foaming agent sees Table 1.
Table 1 foaming agent performance
| Sample | Foam expansion | The 1h depression is apart from (mm) | 1h bleeding quantity (ml) | Place 90d in the air |
| Embodiment 1 | 20 | 8 | 70 | Have no and go mouldy |
| Embodiment 2 | 33 | 6 | 45 | Have no and go mouldy |
| Embodiment 3 | 25 | 3 | 16 | Have no and go mouldy |
Embodiment 4
A kind of cementitious composite foaming agent, made by the raw material of following component and weight percent content:
A kind of preparation method of cementitious composite foaming agent, the method may further comprise the steps:
(1) gets the raw materials ready according to following component and weight percent content: pore forming material 2.0 (monoester fatty alcohol sodium salt), foaming aids 0.5 (polyoxyethylene fat acyl alcohol amine), suds-stabilizing agent 0.5 (hydroxypropyl starch ether), sanitas 0.1 (potassium sorbate), water 96.9;
Under (2) 50 ℃, be 10% colloidal solution with the suds-stabilizing agent massfraction that is made into soluble in water, naturally cooling is stand-by;
(3) successively pore forming material, foaming aids, suds-stabilizing agent solution and sanitas are added in the remaining water while stirring, stir and namely get the cementitious composite foaming agent.
Behind 20 times of cementitious composite foaming agent thin ups, add in the frothing machine and foam, the gained foam can be applicable in the cement based foamed concrete.
Embodiment 5
A kind of cementitious composite foaming agent, made by the raw material of following component and weight percent content:
A kind of preparation method of cementitious composite foaming agent, the method may further comprise the steps:
(1) gets the raw materials ready according to following component and weight percent content: pore forming material 8.0 (alkyl alcohol polyoxyethylene sodium sulfate), foaming aids 2.0 (polyoxyethylene fat acyl alcohol amine), suds-stabilizing agent 2.0 (hydroxyethylamyle), sanitas 1.0 (potassium sorbate), water 87;
Under (2) 50 ℃, be 10% colloidal solution with the suds-stabilizing agent massfraction that is made into soluble in water, naturally cooling is stand-by;
(3) successively pore forming material, foaming aids, suds-stabilizing agent solution and sanitas are added in the remaining water while stirring, stir and namely get the cementitious composite foaming agent.
Behind 40 times of cementitious composite foaming agent thin ups, add in the frothing machine and foam, the gained foam can be applicable in the cement based foamed concrete.
Embodiment 6
A kind of cementitious composite foaming agent, made by the raw material of following component and weight percent content:
A kind of preparation method of cementitious composite foaming agent, the method may further comprise the steps:
(1) gets the raw materials ready according to following component and weight percent content: pore forming material 8.0 (alkyl alcohol polyoxyethylene sodium sulfate), foaming aids 2.0 (polyoxyethylene fat acyl alcohol amine), suds-stabilizing agent 2.0 (hydroxyethylamyle), sanitas 1.0 (potassium sorbate), water 78.0; Under (2) 50 ℃, be 10% colloidal solution with the suds-stabilizing agent massfraction that is made into soluble in water, naturally cooling is stand-by; (3) successively pore forming material, foaming aids, suds-stabilizing agent solution and sanitas are added in the remaining water while stirring, stir and namely get the cementitious composite foaming agent.
Behind 50 times of cementitious composite foaming agent thin ups, add in the frothing machine and foam, the gained foam can be applicable in the cement based foamed concrete.
The above-mentioned description to embodiment is can understand and use patent for ease of those skilled in the art.The person skilled in the art obviously can easily make various modifications to these embodiment, and needn't pass through performing creative labour being applied in the General Principle of this explanation among other embodiment.Therefore, this patent is not limited to the embodiment here, and those skilled in the art are according to the announcement of this patent, and not breaking away from the improvement that this patent category makes and revise all should be within the protection domain of this patent.
Claims (8)
1. a cementitious composite foaming agent is characterized in that, this foaming agent is made by the raw material of following component and weight percent content:
2. a kind of cementitious composite foaming agent according to claim 1 is characterized in that, the preferred following weight percent of the contained component of this foaming agent:
3. a kind of cementitious composite foaming agent according to claim 1 and 2, it is characterized in that, described pore forming material is selected from one or more in aliphatic alcohol polyethenoxy carboxylic acid sodium, phthalic acid alkylsulfonate, monoester fatty alcohol sodium salt, aliphatic alcohol sulfate, alkyl alcohol polyoxyethylene sodium sulfate or the sodium alkyl benzene sulfonate.
4. a kind of cementitious composite foaming agent according to claim 1 and 2 is characterized in that, described foaming aids is selected from one or more in fatty acid ethanol amide, fatty acid diethanolamine or the polyoxyethylene fat acyl alcohol amine.
5. a kind of cementitious composite foaming agent according to claim 1 and 2 is characterized in that, described suds-stabilizing agent is selected from one or more in gelatin, saponin, polyvinyl alcohol, methylcellulose gum, hydroxypropyl starch ether or the hydroxyethylamyle.
6. a kind of cementitious composite foaming agent according to claim 1 and 2 is characterized in that, described sanitas is selected from one or more in phenylformic acid and its esters, Sorbic Acid and its esters or dehydroacetic acid (DHA) and the sodium salt class.
7. the preparation method of a cementitious composite foaming agent as claimed in claim 1 is characterized in that, the method may further comprise the steps:
(1) gets the raw materials ready according to following component and weight percent content: pore forming material 2.0～10.0, foaming aids 0.5～5.0, suds-stabilizing agent 0.5～5.0, sanitas 0.1～2.0, water 78.0～96.9;
Under (2) 50 ℃, be 10% colloidal solution with the suds-stabilizing agent massfraction that is made into soluble in water, naturally cooling is stand-by;
(3) successively pore forming material, foaming aids, suds-stabilizing agent solution and sanitas are added in the remaining water while stirring, stir and namely get the cementitious composite foaming agent.
8. the application of a cementitious composite foaming agent as claimed in claim 1 is characterized in that, behind 20～50 times of cementitious composite foaming agent thin ups, adds in the frothing machine and foams, and the gained foam can be applicable in the cement based foamed concrete.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103771803A (en) * | 2014-01-10 | 2014-05-07 | 同济大学 | Foam concrete with efficient sound-absorption and heat-preservation functions and preparation method thereof |
| CN104453640A (en) * | 2013-09-17 | 2015-03-25 | 永安矿物科技实业有限公司 | Fireproof heat-insulating door with porous cement structure and manufacturing method thereof |
| CN105271998A (en) * | 2015-10-13 | 2016-01-27 | 安徽芜湖飞琪水泥制品有限公司 | Material composition of self-insulation cement pile, and preparation method of self-insulation cement pile |
| CN110577377A (en) * | 2019-10-30 | 2019-12-17 | 亿恒控股有限公司 | Foaming cement and preparation method thereof |
| CN114477833A (en) * | 2022-01-25 | 2022-05-13 | 重庆彼目加科技有限公司 | Special foaming agent for light cement base and preparation method thereof |
| CN114525141A (en) * | 2020-11-23 | 2022-05-24 | 中国核工业二三建设有限公司 | Vacuum box bubble method foaming agent, preparation method and use method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1103605A (en) * | 1993-12-07 | 1995-06-14 | 煤炭科学研究总院抚顺分院 | Foaming agent with high stability |
| CN1683469A (en) * | 2004-11-29 | 2005-10-19 | 兰州理工大学 | Solid foaming agent |
| CN101717221A (en) * | 2009-11-24 | 2010-06-02 | 中国矿业大学(北京) | Foaming agent for soil engineering |
-
2012
- 2012-10-24 CN CN2012104108567A patent/CN102898064A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1103605A (en) * | 1993-12-07 | 1995-06-14 | 煤炭科学研究总院抚顺分院 | Foaming agent with high stability |
| CN1683469A (en) * | 2004-11-29 | 2005-10-19 | 兰州理工大学 | Solid foaming agent |
| CN101717221A (en) * | 2009-11-24 | 2010-06-02 | 中国矿业大学(北京) | Foaming agent for soil engineering |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453640A (en) * | 2013-09-17 | 2015-03-25 | 永安矿物科技实业有限公司 | Fireproof heat-insulating door with porous cement structure and manufacturing method thereof |
| CN103771803A (en) * | 2014-01-10 | 2014-05-07 | 同济大学 | Foam concrete with efficient sound-absorption and heat-preservation functions and preparation method thereof |
| CN105271998A (en) * | 2015-10-13 | 2016-01-27 | 安徽芜湖飞琪水泥制品有限公司 | Material composition of self-insulation cement pile, and preparation method of self-insulation cement pile |
| CN105271998B (en) * | 2015-10-13 | 2018-04-17 | 安徽芜湖飞琪水泥制品有限公司 | The preparation method of self-heat conserving concrete stake material compositions and self-heat conserving concrete stake |
| CN110577377A (en) * | 2019-10-30 | 2019-12-17 | 亿恒控股有限公司 | Foaming cement and preparation method thereof |
| CN114525141A (en) * | 2020-11-23 | 2022-05-24 | 中国核工业二三建设有限公司 | Vacuum box bubble method foaming agent, preparation method and use method |
| CN114525141B (en) * | 2020-11-23 | 2023-11-14 | 中国核工业二三建设有限公司 | Foaming agent for vacuum box air bubble method, preparation method and use method |
| CN114477833A (en) * | 2022-01-25 | 2022-05-13 | 重庆彼目加科技有限公司 | Special foaming agent for light cement base and preparation method thereof |
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Application publication date: 20130130 |