CN103204696B - Special foaming agent for synthetic foam concrete and preparation method of foaming agent - Google Patents
Special foaming agent for synthetic foam concrete and preparation method of foaming agent Download PDFInfo
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- CN103204696B CN103204696B CN201310134602.1A CN201310134602A CN103204696B CN 103204696 B CN103204696 B CN 103204696B CN 201310134602 A CN201310134602 A CN 201310134602A CN 103204696 B CN103204696 B CN 103204696B
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- sodium sulfonate
- whipping agent
- foaming agent
- sodium
- toxilic acid
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Abstract
The invention discloses a special foaming agent for a synthetic foam concrete and preparation method of the foaming agent. The special foaming agent is a polymer prepared through polymerization under the heating condition, wherein maleic acid sodium sulfonate monoester, allyl polyether sodium sulfonate, sodium 4-styrenesulfonate and acrylamide are used as monomers to have polymerization in an initiator under the support of water, an organic assistant and filler. The foaming agent is good in foaming performance, long in foaming stabilizing time and cannot be influenced by external temperature and acid-base environment. Furthermore, the invention further discloses the preparation method of the foaming agent on the above basis.
Description
Technical field
The present invention relates to whipping agent and preparation method thereof, be specifically related to synthesis type foamed concrete special-purpose foaming agent and preparation method thereof, belong to building material field.
Background technology
Foamed concrete is " close hole " light building material that contains a large amount of sealed porositys by the inside that after the main raw material fusion such as cement, lime, flyash, sand and admixture evenly, cast sclerosis forms, in this process, whipping agent is a key factor of producing foamed concrete, and its performance is directly determining the quality of foamed concrete.For solving the not good problem of single whipping agent performance, Present Domestic all starts to adopt composite modification technology outward, produce compound foaming agent, for example, on American market, there is multiple efficient protein matter class whipping agent, adopt sulfonic acid substance and the compound composition of protein hydrolysate, on market, this series products has also occurred much nearly ten years at home, but protein foaming agent ubiquity foaming power, froth stability is poor, the ill effect such as lower leaf on product, and this series products is because shortage of raw materials is under-supply, and raw-material quality is unstable, cause the foam performance of the finished product unstable, be only suitable for using in less occasion, thereby do not obtain spread, other types be applied to whipping agent in foamed concrete as RA rosin acid class whipping agent, sodium resinate class whipping agent, surfactant-based whipping agent, mahogany acid aluminium whipping agent etc.These whipping agents are also relatively backward generally, and function is on the low side, and overall target is not high, although the foam expansion of some whipping agent is large, poor stability, product strength are not high.
Summary of the invention
For the deficiency of the whipping agent existing in prior art, an object of the present invention is to provide the agent of a kind of synthesis type foamed concrete special-purpose foaming, obtained by various of monomer polyreaction, high as its foam expansion of whipping agent, foam exquisiteness and good stability.
On upper basis, an also object of the present invention is to provide the agent of synthesis type foamed concrete special-purpose foaming, by adopting initiator that various of monomer is prepared by polyreaction, gained whipping agent foam expansion is high, foam exquisiteness and good stability, better with cement adaptability, and production technique is simple and easy to control.
Accordingly, on the basis of the above, another object of the present invention is to provide the agent of a kind of synthesis type foamed concrete special-purpose foaming and obtains preparation method, for obtaining the whipping agent of above-mentioned excellent performance, disclosed preparation method's technique is simple, production process is easily controlled, and can ensure quick, effective, high-quality production whipping agent.
For achieving the above object, the present invention is achieved through the following technical solutions:
The agent of a kind of synthesis type foamed concrete special-purpose foaming, is polymkeric substance, and its structure is as follows:
Wherein, the polymerization degree of this polymkeric substance can regulate to obtain target product arbitrarily by the length in reaction times, conventionally in concrete field, above-mentioned polymkeric substance used, and each compositing monomer wherein, polymerization degree n is 1-100, and preferred, applicant has been determined by experiment has optimum performance in the time that the polymerization degree is 5-30.
As is known to the person skilled in the art, polymkeric substance can adopt multiple different mode, multiple different catalyzer, initiator etc. to make, and wherein synthesis type foamed concrete special-purpose foaming of the present invention agent adopts following method to make:
Taking toxilic acid monoesters sodium sulfonate, allyl polyether sodium sulfonate, to vinyl benzenesulfonic acid sodium and acrylamide as monomer, under initiator effect, and be aided with water, organic additive and weighting agent under the temperature condition of 60～80 degrees Celsius, through polyreaction, make.
Wherein, described initiator is that one can produce free radical or ion isoreactivity kind, to cause the material of chain polymerization, common initiator comprises peralcohol initiator and azo-initiator and redox initiator, preferred described initiator is superoxide in the present invention, comprises a kind of in hydrogen peroxide, ammonium persulphate, Potassium Persulphate, benzoyl peroxide and/or more than one mixture.
Wherein, described toxilic acid monoesters sodium sulfonate comprises monomethyl maleate sodium sulfonate, ethyl maleate sodium sulfonate, a kind of in toxilic acid list propyl ester sodium sulfonate, toxilic acid single lauryl alcohol ester sodium sulfonate and/or more than one mixture.
Wherein, described organic additive comprises a kind of in trolamine, Oleum Cocois ethylene glycol amine, N-α dimethyl-N ε-lauroyl Methionin, gelatin and/or more than one mixture.
Wherein, described weighting agent comprises a kind of in SODIUMNITRATE, Tai-Ace S 150, magnesium hydroxide, Sodium Fluoride, magnesium silicofluoride and/or more than one mixture.
In the present invention, the consumption of above-mentioned various raw materials can carry out choose reasonable according to production technique by those skilled in the art, preferably, in order to prevent wastage of material, enhance productivity, described toxilic acid monoesters sodium sulfonate: allyl polyether sodium sulfonate: water: to vinyl benzenesulfonic acid sodium: acrylamide: initiator: organic additive: the consumption of weighting agent, is calculated as 1.0:(0.2～0.5 with mass fraction): 22:(0.5～1.5): (0.5～1.0): (0.02～0.05): (0.3～0.7): (0.5～1.5).
In the present invention, it is 20% that the whipping agent that above-mentioned technique obtains can make whipping agent solid content, shows that this preparation technology has good monomer conversion.
Accordingly, the invention discloses the preparation method of the above-mentioned synthesis type foamed concrete special-purpose foaming of preparation agent, comprise the steps: taking toxilic acid monoesters sodium sulfonate, allyl polyether sodium sulfonate, to vinyl benzenesulfonic acid sodium and acrylamide as monomer, under initiator effect, and be aided with water, organic additive and weighting agent under the temperature condition of 60～80 degrees Celsius, through polyreaction, make.
Whipping agent of the present invention, adopt toxilic acid monoesters sodium sulfonate and allyl polyether sodium sulfonate carries out polymerization and so that vinyl benzenesulfonic acid sodium and acrylamide are embedded to molecule as monomer, a large amount of sulfonic acid groups and amino on molecular chain, are increased, foaming power is improved rapidly, and because amino group has facilitation effect to froth stability, make whipping agent there is again good foam stabilization performance, better to cement adaptability.
Compared with prior art, whipping agent of the present invention has following advantage
1. foaming power is high, and foam expansion can reach more than 25.
2. foam exquisiteness, good stability, is conducive to the construction of foamed concrete and builds.
3. the adaptability of cement is better, and the conventional cement of each department is all had to good adaptability.
4. production technique is simple and easy to control, excellent storage stability.
Embodiment
Embodiment 1
By monomethyl maleate sodium sulfonate: allyl polyether sodium sulfonate: water: to vinyl benzenesulfonic acid sodium: acrylamide: hydrogen peroxide: Oleum Cocois ethylene glycol amine: the each component of magnesium silicofluoride=1.0:0.2:22:0.9:0.5:0.02:0.3:0.5(is all by amount of substance ratio) feed intake, under the temperature condition of 60～80 degrees Celsius, through polyreaction, the light yellow liquid that the solid content making is 20%.
Embodiment 2
By ethyl maleate sodium sulfonate: allyl polyether sodium sulfonate: water: to vinyl benzenesulfonic acid sodium: acrylamide: ammonium persulphate: N-α dimethyl-N ε-lauroyl Methionin: the each component of Sodium Fluoride=1.0:0.3:22:1.0:0.03:0.6:0.5:0.5(is all by amount of substance ratio) feed intake, under the temperature condition of 60～80 degrees Celsius, through polyreaction, the colourless liquid that the solid content making is 20%.
Embodiment 3
By toxilic acid single lauryl alcohol ester sodium sulfonate: allyl polyether sodium sulfonate: water: to vinyl benzenesulfonic acid sodium: the each component of acrylamide: ammonium persulphate: gelatin: magnesium hydroxide=1.0:0.5:22:1.5:0.8:0.05:0.7:1.0(is all by amount of substance ratio) feed intake, under the temperature condition of 60～80 degrees Celsius, through polyreaction, the light yellow liquid that the solid content making is 20%.
Applicant adopts industry common practice to test to the foam expansion of above-mentioned whipping agent:
First accurately take the whipping agent stoste of 1g, it is joined in liquid storage tube (with scale) after (1 ︰ 60) dilution in proportion.Start blower pump, open air blowing piston, regulate liquid feeding piston, the foamy column that foaming tube is produced just can be continuously.After system stable operation, record the scale (k1) of whipping agent diluent, and connect newly-generated foam with several 1000mL beakers of measuring neat mouthful of volume, and each wants neat mouthful, and by continuous be V with there is no " cavity " in the floating guarantee beaker of flat chisel, establishing its volume.When after the neat mouthful brimmer of last beaker foam of plan, again record the scale (k2) of whipping agent diluent, foam expansion is
Applicant gets the whipping agent stoste sample of embodiment 1-3 and tests, and foam expansion mean value is all followed successively by 28,26,30 higher than 25().
Applicant gets above-mentioned whipping agent and has carried out suitability experiment 32.5, on the cement of the different model such as 32.5R, 42.5,42.5R, 52.5,52.5R, ratio according to 1:60,1:100 is diluted, per kilogram whipping agent all can be not less than 4 grades of foamed concrete of 15kg, service efficiency is good, and suitability is wide.
In the above-described embodiments, applicant does not provide concrete polymerization degree n, and this consumption coming from by increasing each composition can obtain the needed polymerization degree; In above-mentioned experiment embodiment sample used, the polymerization degree of whipping agent stoste sample used is 8,19,27.
In the above-described embodiments, applicant is not to toxilic acid monoesters sodium sulfonate, make restriction to the polymerization degree of relevant group in vinyl benzenesulfonic acid sodium, the group repeating in these two kinds of compositions is on the one hand methyl, ethyl, the change of the polymerization degree does not change the overall configuration of whole compound, does not affect the response capacity of compound yet.
Embodiment described in this specification sheets, its formula, title that technique is named etc. can be different.Every equivalence or simple change of doing according to described structure, feature and the principle of patent design of the present invention, is all covered by the protection domain of patent of the present invention.Those skilled in the art can make various amendments or supplement or adopt similar mode to substitute described embodiment; only otherwise depart from structure of the present invention or surmount the defined scope of this claim, all belong to protection scope of the present invention.
Claims (8)
1. a synthesis type foamed concrete special-purpose foaming agent, is polymkeric substance, it is characterized in that structure is:
n＝1-100；
Wherein, described whipping agent is adopted with the following method and is made: taking toxilic acid monoesters sodium sulfonate, allyl polyether sodium sulfonate, to vinyl benzenesulfonic acid sodium and acrylamide as monomer, under initiator effect, and be aided with water, organic additive and weighting agent under the temperature condition of 60～80 degrees Celsius, through polyreaction, make;
Described toxilic acid monoesters sodium sulfonate: allyl polyether sodium sulfonate: water: to vinyl benzenesulfonic acid sodium: acrylamide: initiator: organic additive: the consumption of weighting agent, is calculated as 1.0 with mass fraction: (0.2～0.5): 22: (0.5～1.5): (0.5～1.0): (0.02～0.05): (0.3～0.7): (0.5～1.5).
2. whipping agent according to claim 1, is characterized in that n=5-30 in described polymer architecture.
3. whipping agent according to claim 1, is characterized in that described initiator is superoxide, and described superoxide comprises a kind of in hydrogen peroxide, ammonium persulphate, Potassium Persulphate, benzoyl peroxide and/or more than one mixture.
4. whipping agent according to claim 1, it is characterized in that described toxilic acid monoesters sodium sulfonate comprises monomethyl maleate sodium sulfonate, ethyl maleate sodium sulfonate, a kind of in toxilic acid list propyl ester sodium sulfonate, toxilic acid single lauryl alcohol ester sodium sulfonate and/or more than one mixture.
5. whipping agent according to claim 1, is characterized in that described organic additive comprises a kind of in trolamine, Oleum Cocois ethylene glycol amine, N-α dimethyl-N ε-lauroyl Methionin, gelatin and/or more than one mixture.
6. whipping agent according to claim 1, is characterized in that described weighting agent comprises a kind of in SODIUMNITRATE, Tai-Ace S 150, magnesium hydroxide, Sodium Fluoride, magnesium silicofluoride and/or more than one mixture.
7. whipping agent according to claim 1, is characterized in that described whipping agent solid content is 20%.
8. the preparation method of the synthesis type foamed concrete special-purpose foaming agent described in above-mentioned arbitrary claim, it is characterized in that comprising the steps: taking toxilic acid monoesters sodium sulfonate, allyl polyether sodium sulfonate, to vinyl benzenesulfonic acid sodium and acrylamide as monomer, under initiator effect, and be aided with water, organic additive and weighting agent under the temperature condition of 60～80 degrees Celsius, through polyreaction, make.
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| CN201310134602.1A CN103204696B (en) | 2013-04-17 | 2013-04-17 | Special foaming agent for synthetic foam concrete and preparation method of foaming agent |
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| CN201310134602.1A CN103204696B (en) | 2013-04-17 | 2013-04-17 | Special foaming agent for synthetic foam concrete and preparation method of foaming agent |
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| CN103204696B true CN103204696B (en) | 2014-11-05 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1978387A (en) * | 2005-12-08 | 2007-06-13 | 王玉宝 | Waterproof concrete composite foam agent |
| CN101224957A (en) * | 2008-02-01 | 2008-07-23 | 中国日用化学工业研究院 | Foaming agent for civil construction as well as preparation method and use thereof |
| CN102765962A (en) * | 2012-07-30 | 2012-11-07 | 山东宏艺科技股份有限公司 | Macromolecular concrete foaming agent and preparation method thereof |
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- 2013-04-17 CN CN201310134602.1A patent/CN103204696B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1978387A (en) * | 2005-12-08 | 2007-06-13 | 王玉宝 | Waterproof concrete composite foam agent |
| CN101224957A (en) * | 2008-02-01 | 2008-07-23 | 中国日用化学工业研究院 | Foaming agent for civil construction as well as preparation method and use thereof |
| CN102765962A (en) * | 2012-07-30 | 2012-11-07 | 山东宏艺科技股份有限公司 | Macromolecular concrete foaming agent and preparation method thereof |
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