CN107879661B - Foaming agent composition and application - Google Patents
Foaming agent composition and application Download PDFInfo
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- CN107879661B CN107879661B CN201710957949.4A CN201710957949A CN107879661B CN 107879661 B CN107879661 B CN 107879661B CN 201710957949 A CN201710957949 A CN 201710957949A CN 107879661 B CN107879661 B CN 107879661B
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- polyquaternium
- polyvinyl alcohol
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/304—Air-entrainers
Abstract
The foaming agent composition at least comprises, by weight, 1-5 parts of amido polyoxyethylene ether sulfate, 5-10 parts of silicone resin polyether emulsion, 2-4 parts of polyquaternium, 4-8 parts of cellulose ether, 1-5 parts of polyvinyl alcohol, 10-40 parts of a foaming agent, 5-15 parts of an auxiliary agent and 100 parts of water.
Description
Technical Field
The invention belongs to the field of fine chemicals, and particularly relates to a foaming agent composition and application thereof.
Background
Energy conservation and emission reduction are the basic national policies of China. At present, the building energy consumption accounts for about 28 percent of the total energy consumption of China society. The energy consumption of the building is caused by the heat transfer inside and outside the building enclosure structure (roof, outer wall, door and window and ground). The building envelope energy-saving technology is one of important directions of building energy-saving research of all countries in the world, and the development of high-performance building envelope heat-insulating materials, products and systems thereof is the key for realizing building energy saving. At present, organic heat-insulating materials such as polystyrene foam boards, polyurethane rigid foams and the like which are commonly used in China have the advantages of light weight, good heat-insulating effect and the like, but are inflammable, easy to age and poor in durability. The polystyrene foam plate can be melted quickly in case of fire, and the fire extinguishing agent has large smoke, is difficult to extinguish and has serious harm; for polyurethane foam, besides the problems of price and fire resistance, the polyurethane foam also has the problems of large shrinkage, release of a large amount of toxic gas, influence of weather wind direction and the like during construction.
Compared with organic heat-insulating materials, the foam concrete has the advantages of fire resistance, durability, sound insulation, environmental protection and the like. Compared with inorganic heat-insulating materials such as aerated concrete, foam glass, vitrified micro bubbles and the like, the foam concrete has the advantages of low manufacturing cost, convenient construction, low product volume weight, easy molding, low investment, wide raw material source, easy popularization and the like.
The foam concrete is one of light concrete, and has the characteristics of environmental protection, energy conservation, low cost, flame retardance and the like. The foam concrete is usually produced by mechanically preparing foam from a foaming agent aqueous solution, adding the foam into a gelled material slurry, mixing and stirring, pouring and forming, and curing to obtain a material which contains a large number of fine closed air holes and has certain strength. The foam formed by the foaming agent finally forms a pore structure in the concrete, and the pore structure has a great influence on the performance of the foamed concrete. The smaller and closed pore diameter in the foam concrete, the more round the pore shape, the more uniform the pore structure distribution, and the better the performance of the obtained foam concrete. Therefore, higher demands are also made on the blowing agent.
Disclosure of Invention
In order to solve the problems of the prior art, the first aspect of the invention provides a foaming agent composition, which at least comprises, by weight, 1-5 parts of amido polyoxyethylene ether sulfate, 5-10 parts of silicone resin polyether emulsion, 2-4 parts of polyquaternium, 4-8 parts of cellulose ether, 1-5 parts of polyvinyl alcohol, 10-40 parts of a foaming agent, 5-15 parts of an auxiliary agent and 100 parts of water.
In some embodiments, the amidopolyoxyethylene ether sulfate is selected from one of amidopolyoxyethylene ether sodium sulfate, amidopolyoxyethylene ether potassium sulfate, amidopolyoxyethylene ether magnesium sulfate, and amidopolyoxyethylene ether ammonium sulfate.
In some embodiments, the polyquaternium is selected from at least one of polyquaternium-1, polyquaternium-6, polyquaternium-7, polyquaternium-10, and polyquaternium-22.
In some embodiments, the cellulose ether is selected from at least one of a methyl cellulose ether, a hydroxymethyl cellulose ether, an ethyl cellulose ether, and a hydroxyethyl cellulose ether.
In some embodiments, the polyvinyl alcohol is selected from at least one of polyvinyl alcohol 1788, polyvinyl alcohol 1799, polyvinyl alcohol 2388, polyvinyl alcohol 2399.
In some embodiments, the weight ratio of amidopolyoxyethylene ether sulfate to silicone polyether emulsion is 1: 3.
in some embodiments, the foaming agent is a mixture of an anionic surfactant and a zwitterionic surfactant.
In some embodiments, the anionic surfactant is selected from at least one of laureth sulfate, lauryl sulfate.
In some embodiments, the zwitterionic surfactant is a betaine surfactant.
In some embodiments, the adjuvant is selected from at least one of triethanolamine, diethanol monoisopropanolamine, sodium chloride.
A second aspect of the present invention provides a method for preparing a blowing agent composition as described above, comprising the steps of: mixing the above components at room temperature, and stirring for 10-30 min.
A third aspect of the invention provides the use of a foaming agent in the production of concrete.
Detailed Description
The disclosure may be understood more readily by reference to the following detailed description of preferred embodiments of the invention and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control.
The term "prepared from …" as used herein is synonymous with "comprising". The terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.
The conjunction "consisting of …" excludes any unspecified elements, steps or components. If used in a claim, the phrase is intended to claim as closed, meaning that it does not contain materials other than those described, except for the conventional impurities associated therewith. When the phrase "consisting of …" appears in a clause of the subject matter of the claims rather than immediately after the subject matter, it defines only the elements described in the clause; other elements are not excluded from the claims as a whole.
When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as a range of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when a range of "1 to 5" is disclosed, the described range should be interpreted to include the ranges "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. When a range of values is described herein, unless otherwise stated, the range is intended to include the endpoints thereof and all integers and fractions within the range.
The singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. "optional" or "any" means that the subsequently described event or events may or may not occur, and that the description includes instances where the event occurs and instances where it does not.
Approximating language, as used herein throughout the specification and claims, is intended to modify a quantity, such that the invention is not limited to the specific quantity, but includes portions that are literally received for modification without substantial change in the basic function to which the invention is related. Accordingly, the use of "about" to modify a numerical value means that the invention is not limited to the precise value. In some instances, the approximating language may correspond to the precision of an instrument for measuring the value. In the present description and claims, range limitations may be combined and/or interchanged, including all sub-ranges contained therein if not otherwise stated.
In addition, the indefinite articles "a" and "an" preceding an element or component of the invention are not intended to limit the number requirement (i.e., the number of occurrences) of the element or component. Thus, "a" or "an" should be read to include one or at least one, and the singular form of an element or component also includes the plural unless the stated number clearly indicates that the singular form is intended.
The foam is one of main components of the foam concrete, and the foam brings air into concrete slurry to enable the concrete slurry to have a mutually separated porous structure after hardening, so that the concrete has excellent performances of small unit volume weight, large porosity, good heat insulation, high freezing resistance and the like. The quality of the foam, such as size, shape, stability, etc., directly affects the foam concrete properties. The foam is thus the basis for forming a foamed concrete. Foam refers to a multi-phase dispersion of an insoluble (or slightly soluble) gas dispersed in a liquid, where the gas is the dispersed phase (discontinuous phase) and the liquid is the dispersion medium (continuous phase). Foams are formed by the aggregation of a large number of bubbles, and the liquid encapsulating the gas is called a liquid film or bubble film.
Foams are thermodynamically unstable systems that are dispersed as a gas in a liquid and have a free energy higher than the sum of the free energies of air and liquid, so that the foam will spontaneously collapse over time to reduce the total free energy of the system. The main causes of foam collapse are foam drainage and gas diffusion in the foam.
The invention provides a foaming agent composition, which at least comprises 1-5 parts of amido polyoxyethylene ether sulfate, 5-10 parts of silicone resin polyether emulsion, 2-4 parts of polyquaternary ammonium salt, 4-8 parts of cellulose ether, 1-5 parts of polyvinyl alcohol, 10-40 parts of a foaming agent, 5-15 parts of an auxiliary agent and 100 parts of water in parts by weight.
The formation of foam is promoted at a low surface tension (the formation of foam is accompanied by the expansion of the surface, and therefore the foam is generated with work of a magnitude equal to the surface area of the bubbles multiplied by the surface tension), but the stability of the foam is not ensured. The low surface tension contributes to the stability of the foam only if the surface film has a certain strength to form a polyhedral foam. The surface tension not only influences the formation of foam, but also has the function of recovering the thickness and strength of the liquid film when the foam liquid film is impacted by external force.
In some embodiments, the amidopolyoxyethylene ether sulfate is selected from one of amidopolyoxyethylene ether sodium sulfate, amidopolyoxyethylene ether potassium sulfate, amidopolyoxyethylene ether magnesium sulfate, and amidopolyoxyethylene ether ammonium sulfate.
In some embodiments, the polyquaternium is selected from at least one of polyquaternium-1, polyquaternium-6, polyquaternium-7, polyquaternium-10, and polyquaternium-22.
In some embodiments, the cellulose ether is selected from at least one of a methyl cellulose ether, a hydroxymethyl cellulose ether, an ethyl cellulose ether, and a hydroxyethyl cellulose ether.
In some embodiments, the polyvinyl alcohol is selected from at least one of polyvinyl alcohol 1788, polyvinyl alcohol 1799, polyvinyl alcohol 2388, polyvinyl alcohol 2399.
Polyvinyl alcohol is a white flaky, flocculent or powdery solid, and is odorless. Is soluble in water, slightly soluble in dimethyl sulfoxide, and insoluble in gasoline, kerosene, vegetable oil, benzene, toluene, dichloroethane, carbon tetrachloride, acetone, ethyl acetate, methanol, ethylene glycol, etc. The polymerization degree of the polyvinyl alcohol 1788 is 1700, and the alcoholysis degree is 88%; the polymerization degree of the polyvinyl alcohol 1799 is 1700, and the alcoholysis degree is 99%; the polymerization degree of the polyvinyl alcohol 2388 is 2300, and the alcoholysis degree is 88%; the polyvinyl alcohol 2399 has a polymerization degree of 2300 and an alcoholysis degree of 99%.
In some embodiments, the weight ratio of amidopolyoxyethylene ether sulfate to silicone polyether emulsion is 1: 3.
in the research process, the inventor finds that when the weight ratio of the amido polyoxyethylene ether magnesium sulfate to the silicone polyether emulsion is 1: and 3, a synergistic effect can be generated, the foam stabilizing effect is obviously improved, and the half-life period of the foam can be prolonged. The inventors speculate that magnesium ions in the amido polyoxyethylene ether magnesium sulfate are divalent positive ions and can adsorb 2 times of anionic groups, and under the regulation of the silicone polyether emulsion, a denser inner layer film can be formed, the stability of an electric double layer is further improved, and when a liquid film is thinned, the repulsion action between two electric double layers is larger, so that a synergistic effect is generated, and unexpected technical effects are achieved.
In some embodiments, the foaming agent is a mixture of an anionic surfactant and a zwitterionic surfactant.
In some embodiments, the anionic surfactant is selected from at least one of laureth sulfate, lauryl sulfate.
In some preferred embodiments, the anionic surfactant is selected from a mixture of sodium laureth sulfate and sodium lauryl sulfate.
In some embodiments, the zwitterionic surfactant is a betaine surfactant.
In some preferred embodiments, the zwitterionic surfactant is cocamidopropyl betaine.
In some embodiments, the adjuvant is selected from at least one of triethanolamine, diethanol monoisopropanolamine, sodium chloride.
A second aspect of the present invention provides a method for preparing a blowing agent composition as described above, comprising the steps of: mixing the above components at room temperature, and stirring for 10-30 min.
A third aspect of the invention provides the use of a foaming agent in the production of concrete.
The invention is further illustrated by the following specific examples.
Example 1
The foaming agent composition comprises, by weight, 3 parts of amido polyoxyethylene ether magnesium sulfate, 9 parts of silicone resin polyether emulsion, 103 parts of polyquaternary ammonium salt, 6 parts of methyl cellulose ether, 23884 parts of polyvinyl alcohol, 10 parts of lauryl alcohol polyoxyethylene ether sodium sulfate, 4 parts of lauryl sodium sulfate, 6 parts of cocamidopropyl betaine, 4 parts of triethanolamine, 4 parts of diethanol monoisopropanolamine, 2 parts of sodium chloride and 100 parts of water.
Example 2
The foaming agent composition comprises, by weight, 4 parts of amido polyoxyethylene ether magnesium sulfate, 8 parts of silicone resin polyether emulsion, 103 parts of polyquaternary ammonium salt, 6 parts of methyl cellulose ether, 23884 parts of polyvinyl alcohol, 10 parts of lauryl alcohol polyoxyethylene ether sodium sulfate, 4 parts of lauryl sodium sulfate, 6 parts of cocamidopropyl betaine, 4 parts of triethanolamine, 4 parts of diethanol monoisopropanolamine, 2 parts of sodium chloride and 100 parts of water.
Example 3
The foaming agent composition comprises, by weight, 2 parts of amido polyoxyethylene ether magnesium sulfate, 10 parts of silicone resin polyether emulsion, 103 parts of polyquaternary ammonium salt, 6 parts of methyl cellulose ether, 23884 parts of polyvinyl alcohol, 10 parts of lauryl alcohol polyoxyethylene ether sodium sulfate, 4 parts of lauryl sodium sulfate, 6 parts of cocamidopropyl betaine, 4 parts of triethanolamine, 4 parts of diethanol monoisopropanolamine, 2 parts of sodium chloride and 100 parts of water.
Example 4
The foaming agent composition comprises, by weight, 12 parts of amido polyoxyethylene ether magnesium sulfate, 103 parts of polyquaternary ammonium salt, 6 parts of methyl cellulose ether, 23884 parts of polyvinyl alcohol, 10 parts of lauryl polyoxyethylene ether sodium sulfate, 4 parts of lauryl sodium sulfate, 6 parts of cocamidopropyl betaine, 4 parts of triethanolamine, 4 parts of diethanol monoisopropanolamine, 2 parts of sodium chloride and 100 parts of water.
Example 5
The foaming agent composition comprises, by weight, 12 parts of silicone polyether emulsion, 103 parts of polyquaternium, 6 parts of methyl cellulose ether, 23884 parts of polyvinyl alcohol, 10 parts of sodium laureth sulfate, 4 parts of sodium dodecyl sulfate, 6 parts of cocamidopropyl betaine, 4 parts of triethanolamine, 4 parts of diethanol monoisopropanolamine, 2 parts of sodium chloride and 100 parts of water.
The preparation method of the embodiment 1-5 is to mix the components at room temperature and stir for 10-30min to obtain the product.
Foam stability test
100mL of each of examples 1-5 was poured into a graduated beaker at room temperature, stirred with a stirrer at 9000rpm for 10min, the stirring was stopped, and the time in min required for 50mL of liquid to foam out was recorded. The test results are listed in the following table.
| Time of day | |
| Example 1 | 114 |
| Example 2 | 91 |
| Example 3 | 83 |
| Example 4 | 67 |
| Example 5 | 44 |
The foregoing examples are illustrative only, and serve to explain some of the features of the present disclosure. The appended claims are intended to claim as broad a scope as is contemplated, and the examples presented herein are merely illustrative of selected implementations in accordance with all possible combinations of examples. Accordingly, it is applicants' intention that the appended claims are not to be limited by the choice of examples illustrating features of the invention. And that advances in science and technology will result in possible equivalents or sub-substitutes not currently contemplated for reasons of inaccuracy in language representation, and such changes should also be construed where possible to be covered by the appended claims.
Claims (8)
1. The foaming agent composition at least comprises, by weight, 1-5 parts of amido polyoxyethylene ether magnesium sulfate, 5-10 parts of silicone resin polyether emulsion, 2-4 parts of polyquaternium, 4-8 parts of cellulose ether, 1-5 parts of polyvinyl alcohol, 10-40 parts of a foaming agent, 5-15 parts of an auxiliary agent and 100 parts of water; the weight ratio of the amido polyoxyethylene ether magnesium sulfate to the silicone resin polyether emulsion is 1: 3.
2. the foaming agent composition of claim 1, wherein said polyquaternium is at least one member selected from the group consisting of polyquaternium-1, polyquaternium-6, polyquaternium-7, polyquaternium-10, and polyquaternium-22.
3. The blowing agent composition of claim 1 wherein said cellulose ether is selected from at least one of the group consisting of methyl cellulose ethers, hydroxymethyl cellulose ethers, ethyl cellulose ethers, and hydroxyethyl cellulose ethers.
4. The blowing agent composition of claim 1, wherein said polyvinyl alcohol is selected from at least one of polyvinyl alcohol 1788, polyvinyl alcohol 1799, polyvinyl alcohol 2388, and polyvinyl alcohol 2399.
5. The blowing agent composition of claim 1, wherein said blowing agent is a mixture of anionic and zwitterionic surfactants.
6. The foaming composition of claim 5, wherein said anionic surfactant is selected from at least one of laureth sulfate and lauryl sulfate.
7. The foaming composition of claim 5 wherein said zwitterionic surfactant is a betaine surfactant.
8. A process for preparing a blowing agent composition as claimed in any of claims 1 to 7 comprising the steps of: mixing the above components at room temperature, and stirring for 10-30 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710957949.4A CN107879661B (en) | 2017-10-16 | 2017-10-16 | Foaming agent composition and application |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710957949.4A CN107879661B (en) | 2017-10-16 | 2017-10-16 | Foaming agent composition and application |
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| CN107879661A CN107879661A (en) | 2018-04-06 |
| CN107879661B true CN107879661B (en) | 2020-07-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS6197179A (en) * | 1984-10-16 | 1986-05-15 | 大成建設株式会社 | Manufacture of inorganic hydraulic substance lightweight member |
| CN105585276A (en) * | 2014-10-29 | 2016-05-18 | 西安优信机电工程有限公司 | Foam concrete block foamer |
| CN106587716B (en) * | 2017-01-06 | 2019-12-13 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | organic silicon modified foaming agent and application thereof in foamed light soil |
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