CN107986817B - Air-coated characteristic material foaming agent and preparation and application methods thereof - Google Patents
Air-coated characteristic material foaming agent and preparation and application methods thereof Download PDFInfo
- Publication number
- CN107986817B CN107986817B CN201711203808.XA CN201711203808A CN107986817B CN 107986817 B CN107986817 B CN 107986817B CN 201711203808 A CN201711203808 A CN 201711203808A CN 107986817 B CN107986817 B CN 107986817B
- Authority
- CN
- China
- Prior art keywords
- foaming agent
- air
- characteristic material
- foam
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
- C04B38/106—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam by adding preformed foams
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses an air-encapsulated characteristic material foaming agent and preparation and application methods thereof. The air-packing characteristic material foaming agent comprises a foaming agent dry basis and water; wherein the foaming agent dry basis is composed of the following raw materials: aluminum hydroxide micro powder, sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, an air entraining agent, malonic acid, triethanolamine, methyl cellulose and polyacrylamide; the mass ratio of the foaming agent dry basis to the water is 1 (30-35). Also discloses a preparation method and an application method of the air-encapsulated characteristic material foaming agent. The foaming agent for the air-wrapped characteristic material has a larger foaming multiple, simultaneously has lower bleeding than that of the existing foaming agent, has better foam uniformity, well solves the problems of low foaming multiple and poor foam uniformity of the existing foaming agent in the research and use processes, has important significance for improving the stability of foam concrete and reducing the cost of the foam concrete, and has very remarkable practicability.
Description
Technical Field
The invention relates to an air-encapsulated characteristic material foaming agent and a preparation and application method thereof.
Background
The foamed concrete is a light porous concrete prepared by mechanically preparing foam from an aqueous solution doped with a foaming agent, adding the foam into slurry consisting of siliceous materials (sand and fly ash), calcareous materials (lime and cement), water and an auxiliary agent, and carrying out mixing, stirring, casting and forming and steam curing. The foam concrete is a novel building energy-saving material which is waste-utilizing, environment-friendly, energy-saving, heat-insulating, sound-insulating, low in price and non-combustible.
The foam concrete has good characteristics, is widely applied to energy-saving wall materials, and is also applied in other aspects. At present, the application of foam concrete in China is mainly roof foam concrete heat-insulating layer cast-in-place, foam concrete surface blocks, foam concrete light wall boards and foam concrete compensation foundations. The foaming agents applied to the foam concrete are various, and at present, the main foaming agents are as follows: rosin acid soap foaming agents, metal aluminum powder foaming agents, vegetable protein foaming agents, animal protein foaming agents, resin soap foaming agents, hydrolyzed blood gel foaming agents, petroleum aluminum sulfonate foaming agents and the like. The research on the foaming agent in China is generally laggard, the functions are few, the comprehensive index is not high, the foaming times are low, the foam bleeding property is high, the foam stability is not good, and the large-scale application of the foam concrete in engineering is severely restricted. At present, a foaming agent with high foaming ratio and good foam stability needs to be developed so as to adapt to the production, popularization and use of foam concrete.
Disclosure of Invention
The invention aims to provide an air-encapsulated characteristic material foaming agent and preparation and application methods thereof.
The technical scheme adopted by the invention is as follows:
an air-encapsulated performance material foaming agent comprises a foaming agent dry basis and water; wherein the foaming agent dry basis is composed of the following raw materials in parts by mass: 20-25 parts of aluminum hydroxide micro powder, 20-25 parts of sodium dodecyl sulfate, 15-25 parts of sodium dodecyl benzene sulfonate, 13-18 parts of an air entraining agent, 5-12 parts of malonic acid, 2-5 parts of triethanolamine, 1-5 parts of methyl cellulose and 1-3 parts of polyacrylamide; the mass ratio of the foaming agent dry basis to the water is 1 (30-35).
The air entraining agent is triterpenoid saponin air entraining agent.
The preparation method of the air-encapsulated characteristic material foaming agent comprises the following steps:
1) mixing sodium dodecyl sulfate, sodium dodecyl benzene sulfonate and an air entraining agent to obtain an initial material of a foaming agent;
2) mixing the initial material of the foaming agent with aluminum hydroxide micro powder, malonic acid, methyl cellulose, polyacrylamide and water to obtain an initial solution of the foaming agent;
3) and mixing the foaming agent initial solution with triethanolamine to obtain the air-wrapped characteristic material foaming agent.
A preparation method of an air-wrapped characteristic material comprises the following steps:
1) preparing foam by using the air-wrapped characteristic material foaming agent;
2) and adding the foam into the concrete slurry, and mixing and stirring to obtain the air-coated characteristic material.
In the step 1) of the preparation method of the air-wrapped characteristic material, the concrete method for preparing the foam comprises the following steps: and (3) placing the foaming agent of the air-wrapped characteristic material in a stirrer for stirring, and blowing air by using an air compressor to prepare foam.
In the preparation method of the air-wrapped characteristic material, in the step 1), the rotating speed of a stirrer is 1300-1500 r/min, and the stirring time is 80-100 seconds.
The invention has the beneficial effects that:
the foaming agent for the air-wrapped characteristic material has a larger foaming multiple, simultaneously has lower bleeding than that of the existing foaming agent, has better foam uniformity, well solves the problems of low foaming multiple and poor foam uniformity of the existing foaming agent in the research and use processes, has important significance for improving the stability of foam concrete and reducing the cost of the foam concrete, and has very remarkable practicability.
Detailed Description
An air-encapsulated performance material foaming agent comprises a foaming agent dry basis and water; wherein the foaming agent dry basis is composed of the following raw materials in parts by mass: 20-25 parts of aluminum hydroxide micro powder, 20-25 parts of sodium dodecyl sulfate, 15-25 parts of sodium dodecyl benzene sulfonate, 13-18 parts of an air entraining agent, 5-12 parts of malonic acid, 2-5 parts of triethanolamine, 1-5 parts of methyl cellulose and 1-3 parts of polyacrylamide; the mass ratio of the foaming agent dry basis to the water is 1 (30-35).
Preferably, the mass ratio of the blowing agent dry basis to water is 1: 33.
Preferably, the air entraining agent is a triterpenoid saponin air entraining agent.
The preparation method of the air-encapsulated characteristic material foaming agent comprises the following steps:
1) mixing sodium dodecyl sulfate, sodium dodecyl benzene sulfonate and an air entraining agent to obtain an initial material of a foaming agent;
2) mixing the initial material of the foaming agent with aluminum hydroxide micro powder, malonic acid, methyl cellulose, polyacrylamide and water to obtain an initial solution of the foaming agent;
3) and mixing the foaming agent initial solution with triethanolamine to obtain the air-wrapped characteristic material foaming agent.
In the step 1) of the preparation method, the preferable mixing time is 8-12 min; more preferably, the mixing time is 10 min.
In the step 2) of the preparation method, the preferable mixing time is 1-2 min; more preferably, the mixing time is 1 min.
In the step 3) of the preparation method, the preferable mixing time is 8-12 min; more preferably, the mixing time is 10 min.
A preparation method of an air-wrapped characteristic material comprises the following steps:
1) preparing foam by using the air-wrapped characteristic material foaming agent;
2) and adding the foam into the concrete slurry, and mixing and stirring to obtain the air-coated characteristic material.
In the step 1) of the preparation method of the air-wrapped characteristic material, the concrete method for preparing the foam comprises the following steps: and (3) placing the foaming agent of the air-wrapped characteristic material in a stirrer for stirring, and blowing air by using an air compressor to prepare foam.
Preferably, the foaming agent of the air-wrapped characteristic material is placed in a stirrer to be stirred, the rotating speed of the stirrer is 1300-1500 r/min, and the stirring time is 80-100 seconds; more preferably, the rotation speed of the stirrer is 1400r/min, and the stirring time is 90 seconds.
Further, in the step 1) of the preparation method of the air-wrapped characteristic material, the specific method for preparing the foam can also use a foaming machine special for engineering to prepare the foam.
In the step 2) of the preparation method of the air-wrapped characteristic material, preferably, the mixing and stirring time is 4-6 min; more preferably, the mixing and stirring time is 5 min.
The present invention will be described in further detail with reference to specific examples.
Example 1:
example 1 air-packing characteristics the blowing agent has a dry basis composition as shown in table 1.
Table 1 concrete foaming agent of example 1
| Raw materials | Mass portion of |
| Aluminum hydroxide micropowder | 20 |
| Sodium dodecyl sulfate | 20 |
| Sodium dodecyl benzene sulfonate | 25 |
| Triterpenoid saponin air entraining agent | 13 |
| Malonic acid | 9 |
| Triethanolamine | 5 |
| Methyl cellulose | 5 |
| Polyacrylamide | 3 |
Example 2:
example 2 air-packing characteristics the blowing agent has a dry basis composition as shown in table 2.
Table 2 concrete foaming agent of example 2
Example 3:
example 3 air-packing characteristics the blowing agent has a dry basis composition as shown in table 3.
Table 3 concrete foaming agent of example 3
| Raw materials | Mass portion of |
| Aluminum hydroxide micropowder | 22 |
| Sodium dodecyl sulfate | 23 |
| Sodium dodecyl benzene sulfonate | 18 |
| Triterpenoid saponin air entraining agent | 15 |
| Malonic acid | 9 |
| Triethanolamine | 5 |
| Methyl cellulose | 5 |
| Polyacrylamide | 3 |
Example 4:
example 4 air-packing characteristics the blowing agent has a dry basis composition as shown in table 4.
Table 4 concrete foaming agent of example 4
Example 5:
example 5 air-packing characteristics the blowing agent dry basis composition ratios are shown in table 5.
Table 5 concrete foaming agent of example 5
| Raw materials | Mass portion of |
| Aluminum hydroxide micropowder | 25 |
| Sodium dodecyl sulfate | 22 |
| Sodium dodecyl benzene sulfonate | 15 |
| Triterpenoid saponin air entraining agent | 13 |
| Malonic acid | 12 |
| Triethanolamine | 5 |
| Methyl cellulose | 5 |
| Polyacrylamide | 3 |
Example 6:
example 6 air-packing characteristics the blowing agent dry basis composition ratios are shown in table 6.
Table 6 concrete foaming agent of example 6
| Raw materials | Mass portion of |
| Aluminum hydroxide micropowder | 25 |
| Sodium dodecyl sulfate | 24 |
| Sodium dodecyl benzene sulfonate | 24 |
| Triterpenoid saponin air entraining agent | 18 |
| Malonic acid | 5 |
| Triethanolamine | 2 |
| Methyl cellulose | 1 |
| Polyacrylamide | 1 |
The preparation method of the foaming agent for the air-wrapped characteristic material in the embodiment 1-6 comprises the following steps:
1) mixing sodium dodecyl sulfate, sodium dodecyl benzene sulfonate and a triterpenoid saponin air entraining agent according to the composition of the embodiment 1-6 in proportion, and stirring the mixture in a stirrer for 10 minutes to uniformly mix the mixture to obtain a foaming agent initial material;
2) adding water which is 33 times of the total mass of the dry basis into the uniformly stirred foaming agent initial material, and aluminum hydroxide micro powder, methyl cellulose, malonic acid and polyacrylamide in corresponding proportion, and stirring for 1 minute to fully dissolve the mixture to form a foaming agent initial solution;
3) and adding triethanolamine according to the formula ratio into the stirred foaming agent initial solution, and stirring for 10 minutes to form the air-coated characteristic material foaming agent solution with viscosity.
To further determine the properties of the blowing agents of the examples, the invention was tested using the stirring method. The stirring method has the advantages of simplicity, convenience and quickness, is similar to the production mode of the foaming agent, and can accurately judge the foaming performance of the foaming agent. The method comprises the following specific steps:
1) standing the foaming agent solution of the air-wrapped characteristic material prepared in the embodiment 1-6 for 24h, adding 500mL of the foaming agent solution into a stirrer, and stirring at the rotating speed of 1400r/min for 90 seconds;
2) standing for 20 seconds after stirring is stopped, removing foam on the upper part of a stirrer, filling a 100mL beaker, strickling and weighing to determine the foaming times of the foaming agent;
3) standing the beaker filled with the foam in the step 2) for half an hour, sucking water secreted from the bottom of the beaker by using a pipette, weighing the weight of the water, and recording the bleeding amount for half an hour;
4) when the step 2) and the step 3) are operated, the prepared foam is uniformly spread on a glass plate with the lower part adhered with the coordinate paper, another transparent glass plate is pressed on the foam, and then an image is collected by a high-power digital camera; randomly selecting 100cm from the collected images2Counting the number of foams with the foam diameter of more than 5mm, and taking the counted value as a foam uniformity index to measure the dimensional stability of the foams; the greater the foam homogeneity index (i.e., the greater the number of large bubbles)More) indicates worse foam uniformity.
In addition, Hei Ping nanometer thermal polymerization based composite cement foaming agent HP-03 produced by Luoyang Hai horizontal cement foaming technology research and development Limited company purchased in the market is selected as a comparative example for comparison. The blowing agent solution of the comparative example was prepared by directly adding the aqueous solution in the same ratio and stirring, and the other test conditions were the same as those of the examples.
The results of the blowing agent tests for examples 1-6 and comparative examples are shown in Table 7.
TABLE 7 test results of examples and comparative examples
| Expansion ratio of foam | Half an hour bleeding amount (g/L) | Index of foam homogeneity | |
| Example 1 | 32.4 | 17.1 | 7 |
| Example 2 | 34.8 | 16.5 | 11 |
| Example 3 | 35.1 | 15.3 | 5 |
| Example 4 | 33.9 | 15.9 | 15 |
| Example 5 | 33.1 | 16.1 | 11 |
| Example 6 | 31.7 | 15.6 | 9 |
| Comparative example | 24.9 | 22.6 | 17 |
As can be seen from Table 7, the foaming times of the foaming agents in the embodiments 1-6 of the invention are all more than 30 times, and exceed those of the foaming agents sold on the market at present, and the bleeding amount is reduced to a certain extent to reach 32% at most in half an hour, and the foam uniformity is better represented. Therefore, the foaming agent has good application prospect.
The specific method for preparing the air-wrapped characteristic material by using the foaming agent disclosed by the invention is as follows: 1) pouring the foaming agent solution into a stirring kettle for stirring (the rotating speed is 1400r/min, the time is 90 seconds), and simultaneously blowing air into the stirring kettle uninterruptedly by using an air compressor to prepare foam; the foam can also be quickly prepared by using a foaming machine special for engineering; 2) adding the prepared foam into the prepared concrete slurry, stirring for 5 minutes by using a stirrer, and uniformly mixing to obtain the air-wrapped characteristic material, namely the foam concrete.
Claims (5)
1. An air-encapsulated performance material foaming agent is characterized in that: comprises foaming agent dry base and water; wherein the foaming agent dry basis is composed of the following raw materials in parts by mass: 20-25 parts of aluminum hydroxide micro powder, 20-25 parts of sodium dodecyl sulfate, 15-25 parts of sodium dodecyl benzene sulfonate, 13-18 parts of an air entraining agent, 5-12 parts of malonic acid, 2-5 parts of triethanolamine, 1-5 parts of methyl cellulose and 1-3 parts of polyacrylamide; the mass ratio of the foaming agent dry basis to the water is 1: 33; the air entraining agent is a triterpenoid saponin air entraining agent; the preparation method of the air-wrapped characteristic material foaming agent comprises the following steps:
1) mixing sodium dodecyl sulfate, sodium dodecyl benzene sulfonate and an air entraining agent to obtain an initial material of a foaming agent;
2) mixing the initial material of the foaming agent with aluminum hydroxide micro powder, malonic acid, methyl cellulose, polyacrylamide and water to obtain an initial solution of the foaming agent;
3) and mixing the foaming agent initial solution with triethanolamine to obtain the air-wrapped characteristic material foaming agent.
2. The method for preparing the air-packing characteristic material foaming agent as claimed in claim 1, wherein the method comprises the following steps: the method comprises the following steps:
1) mixing sodium dodecyl sulfate, sodium dodecyl benzene sulfonate and an air entraining agent to obtain an initial material of a foaming agent;
2) mixing the initial material of the foaming agent with aluminum hydroxide micro powder, malonic acid, methyl cellulose, polyacrylamide and water to obtain an initial solution of the foaming agent;
3) and mixing the foaming agent initial solution with triethanolamine to obtain the air-wrapped characteristic material foaming agent.
3. A preparation method of an air-wrapped characteristic material is characterized by comprising the following steps: the method comprises the following steps:
1) preparing a foam by using the air-packing characteristic material foaming agent as defined in claim 1;
2) and adding the foam into the concrete slurry, and mixing and stirring to obtain the air-coated characteristic material.
4. The method for preparing an air-packing characteristic material according to claim 3, wherein: in the step 1), the concrete method for preparing the foam comprises the following steps: and (3) placing the foaming agent of the air-wrapped characteristic material in a stirrer for stirring, and blowing air by using an air compressor to prepare foam.
5. The method for preparing an air-packing characteristic material according to claim 4, wherein: in the step 1), the rotating speed of the stirrer is 1300-1500 r/min, and the stirring time is 80-100 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711203808.XA CN107986817B (en) | 2017-11-27 | 2017-11-27 | Air-coated characteristic material foaming agent and preparation and application methods thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711203808.XA CN107986817B (en) | 2017-11-27 | 2017-11-27 | Air-coated characteristic material foaming agent and preparation and application methods thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107986817A CN107986817A (en) | 2018-05-04 |
| CN107986817B true CN107986817B (en) | 2021-07-06 |
Family
ID=62033305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711203808.XA Active CN107986817B (en) | 2017-11-27 | 2017-11-27 | Air-coated characteristic material foaming agent and preparation and application methods thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107986817B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101638303A (en) * | 2009-05-07 | 2010-02-03 | 洛阳师范学院 | LC-01 type foam concrete foamer |
| CN102887663A (en) * | 2012-10-15 | 2013-01-23 | 同济大学 | Compound foaming agent for foam concrete and preparation method thereof |
| CN104761281A (en) * | 2015-03-27 | 2015-07-08 | 中国十七冶集团有限公司 | Inflaming retarding high-temperature-resisting foam concrete and preparation method thereof |
| CN105330196A (en) * | 2015-11-12 | 2016-02-17 | 天元建设集团有限公司 | Foam concrete foaming agent and application thereof |
-
2017
- 2017-11-27 CN CN201711203808.XA patent/CN107986817B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101638303A (en) * | 2009-05-07 | 2010-02-03 | 洛阳师范学院 | LC-01 type foam concrete foamer |
| CN102887663A (en) * | 2012-10-15 | 2013-01-23 | 同济大学 | Compound foaming agent for foam concrete and preparation method thereof |
| CN104761281A (en) * | 2015-03-27 | 2015-07-08 | 中国十七冶集团有限公司 | Inflaming retarding high-temperature-resisting foam concrete and preparation method thereof |
| CN105330196A (en) * | 2015-11-12 | 2016-02-17 | 天元建设集团有限公司 | Foam concrete foaming agent and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107986817A (en) | 2018-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106007613B (en) | A kind of self heat insulation wall gypsum based composite and preparation method thereof | |
| CN108164211B (en) | Production method of foaming building block | |
| CN100575294C (en) | A kind of mortar partner and uses thereof | |
| CN114591049B (en) | Method for preparing green mortar by using construction waste | |
| CN103664114A (en) | Self-heat-insulating fly ash autoclaved aerated concrete block and preparation method thereof | |
| CN102417340A (en) | Gypsum-based phase change energy storage polymer insulation mortar and preparation method thereof | |
| CN105330196A (en) | Foam concrete foaming agent and application thereof | |
| CN107337409B (en) | Special adhesive for foam glass heat insulation system and preparation method and use method thereof | |
| CN102010166A (en) | Method for preparing micro expanded inorganic heat insulation mortar | |
| CN112551968B (en) | Desert sand-ferrochromium slag 3D printing concrete material and construction method thereof | |
| CN107098667A (en) | Gypsum base light energy conservation plate and preparation method thereof | |
| CN111943629A (en) | Preparation method of plastering gypsum mortar | |
| CN108328977A (en) | A kind of concrete repairing material | |
| CN114573306A (en) | High-strength rapid-setting concrete repairing material and preparation method and application thereof | |
| CN109020436A (en) | A kind of new and effective spraying heavy scratch coat gypsum mortar | |
| CN107986817B (en) | Air-coated characteristic material foaming agent and preparation and application methods thereof | |
| CN101456713A (en) | Inorganic mineral earth surface insulating mortar | |
| CN107793088A (en) | Lightweight anti-cracking heat insulation mortar | |
| CN101648803B (en) | Powder mortar composite for bubble lightweight concrete | |
| CN109574700B (en) | Dispersed fiber foam concrete and preparation method thereof | |
| CN103755289B (en) | Heat insulating porous lagging material of ultralight cement based and preparation method thereof | |
| CN106380146A (en) | Preparation method of alkali-activated fly ash decoration mortar | |
| CN111484269A (en) | Viscosity regulator for cement-based grouting material and preparation method thereof | |
| CN101671141A (en) | Admixture of gypsum slurry body | |
| CN108358549A (en) | High-performance insulating brick for building and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |