CN104529219B - Cement foam stabilizing agent, cement composition thereof and application method thereof - Google Patents
Cement foam stabilizing agent, cement composition thereof and application method thereof Download PDFInfo
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- CN104529219B CN104529219B CN201410736002.7A CN201410736002A CN104529219B CN 104529219 B CN104529219 B CN 104529219B CN 201410736002 A CN201410736002 A CN 201410736002A CN 104529219 B CN104529219 B CN 104529219B
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- foam stabilizer
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Abstract
The invention discloses a cement foam stabilizing agent, which has a structural formula shown as the specification. Specifically, R1 and R2 are alkyl with 3-10 carbon atom numbers, and R represents a molecular skeleton. The invention also discloses a cement composition based on the cement foam stabilizing agent, and the cement composition comprises the following components by mass: 35%-50% of cement; 5-15% of polyvinyl alcohol; 4-10% of a water reducer; 1-10% of the foam stabilizing agent; 1-8% of sodium bicarbonate; 1-5% of oleic acid; 5-10% of polystyrene powder; and 10-30% of water. The cement foam stabilizing agent provided by the invention has a better function of stabilizing cell shape and size and mechanical properties, maintains the cell strength and toughness, and simultaneously enhances the strength of the cement foaming material system. The cement composition provided by the invention has the characteristics of small volume-weight, small heat conductivity coefficient, low density, high strength and no burning.
Description
Technical field
The invention belongs to building material field, relate to a kind of cement foaming material, be specifically related to a kind of containing cycloalkane
Molecular skeleton foam stabilizer and foamed cement composition thereof, it is a kind of lightweight, heat insulation, heat-insulating construction material.
Background technology
Along with development and the emerging technology of building trade occur there has been new demand for novel construction material, newly
Technology and new material support this development.All the time, it is desirable to construction material lightweight, reduce the deadweight of building body, but
At present, although have many cement foaming materials can meet this requirement, but limited by material self, also it is difficult to reach to have
The requirement that machine material lightweight, inorganic material are high-strength.And organic material self burning-point is the lowest, it is difficult to overcome inflammable defect, especially
It is the raising of fire-protection rating in recent years, and organic material can not meet the needs of building.For high performance wall thermal insulating material
For material, the performance of its lightweight and the structure of cement have close relationship, excessive abscess certainly will cause the reduction of mechanical property,
Too small abscess then causes unit weight excessive, therefore, controls foam cement foam structure extremely important to the performance of light material.
Use rosin derivative as foam stabilizer in early days, although it is provided that suitable viscosity at bubble interface, can be with shape
Become dura mater, serve the effect of certain stable bubble, but its molecular structure is excessive so that in cement hydration process, intensity is subject to
To impact；Later stage uses again protein foaming agent, and protein foaming agent is belonging to macromolecular compound, although elastic preferable, bubble
Film tough, but yet suffer from deficiency in terms of strength of cement keeping.Therefore, structure more stable in the urgent need to exploitation performance
The more foam stabilizer of laminating cement structures skeleton, the most just can make cement foaming material also can have while keeping lightweight advantage
Higher intensity.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides one can keep cement foamed
Material keeps light weight and the cement stabilizing agent of higher intensity.
It is a further object of the present invention to provide base toy and state cement composition and the application process thereof of cement stabilizing agent.
Technical scheme: for achieving the above object, a kind of cement foam stabilizer that the present invention provides, its structural formula is:
Wherein R1 with
R2 is the alkyl containing 3-10 carbon number, and R represents carbon molecular skeleton.
Further, described R represents that molecular skeleton includes little molecule.
Further, described R represents that molecular skeleton includes macromolecule.
The preparation method of above-mentioned cement foam stabilizer, its course of reaction is as follows:
Wherein reaction condition is:WithAdditive reaction is carried out by the mol ratio of 1:1,
Then, above-mentioned reaction gained monomer contains isocyanates NCO-R-NCO again and reacts acquisition and have following structure with end group
Material
Wherein reaction condition is: both carry out dehydration by the mol ratio of 1:1.
Foamed cement composition based on above-mentioned cement foam stabilizer, the most composed of the following components:
The foamed cement composition of above-mentioned cement foam stabilizer, described cement includes: portland cement, phosphate cement or
Any one or any mass ratio in aluminate cement several.
The foamed cement composition of above-mentioned cement foam stabilizer, described water reducer includes the organic diminishing containing carboxylic group
Agent.
The application process of the foamed cement composition of above-mentioned cement foam stabilizer, weighs corresponding component by its mass ratio,
Then it is stirred for mix homogeneously, is subsequently adding in mould, at 65 DEG C, be incubated 1 hour, then little in immigration steam curing 12
Time
Beneficial effect: the innovative point of the present invention is that the foam stabilizer containing cycloalkane framing structure joins cement based foaming
Material, owing to the structure of isocyanates is contained in the inside of this newly synthesized foam stabilizer, the hardness of the most whole system can be
Promoting, stable foam effect is compared with existing foam stabilizer, and the steady bubble time increases to 1h, because inside is possibly together with ester bond, is also easy to
And resin-bonded, improve the adhesive strength of system, additionally molecular skeleton rigidity and flexibility help, therefore to stable bubble hole structure
More having the effect of excellence, it shows that the outward appearance of abscess diminishes, and cell diameter is at 100 microns.
Accompanying drawing explanation
Fig. 1 is the molecular structural formula of cement stabilizing agent.
Fig. 2 is the synthesis chemical equation of cement stabilizing agent molecule monomer.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further described.
As it is shown in figure 1, Fig. 1 is the molecular structural formula of cement stabilizing agent, Fig. 2 is the synthesis of cement stabilizing agent molecule monomer
Chemical equation.
Embodiment 1:
A kind of foamed cement composition containing cycloalkane framing structure, it is made up of following compositions, a combination thereof
Thing and mass percent be:
Described polystyrene be particle diameter be the granule of 3 microns.
Described foam stabilizer structure is:
Embodiment 1 effect is shown in Table 1.
Table 1
Embodiment 2:
A kind of foamed cement composition containing cycloalkane framing structure, it is made up of following compositions, a combination thereof
Thing and mass percent be:
Described polystyrene be particle diameter be the granule of 6 microns.
Described foam stabilizer structure is:
Embodiment 2 effect is shown in Table 2.
Table 2
Embodiment 3:
A kind of foamed cement composition containing cycloalkane framing structure, it is made up of following compositions, a combination thereof
Thing and mass percent be:
Described polystyrene be particle diameter be the granule of 13 microns.
Described foam stabilizer structure is:
Embodiment 3 effect is shown in Table 3.
Table 3
Embodiment 4:
A kind of foamed cement composition containing cycloalkane framing structure, it is made up of following compositions, a combination thereof
Thing and mass percent be:
Described cement includes: portland cement and phosphate cement mixture, and mass ratio is portland cement: phosphate
Cement=1:5.
Described polystyrene be particle diameter be the granule of 8 microns.
Described foam stabilizer structure is:
Embodiment 4 effect is shown in Table 4.
Table 4
Embodiment 5:
A kind of foamed cement composition containing cycloalkane framing structure, it is made up of following compositions, a combination thereof
Thing and mass percent be:
Described cement includes: portland cement, and the mixing of 3:1:5 mass ratio pressed by phosphate cement and aluminate cement.
Described polystyrene be particle diameter be the granule of 5 microns.
Described foam stabilizer structure is:
Embodiment 5 effect is shown in Table 5.
Table 5
Embodiment 6:
A kind of foamed cement composition containing cycloalkane framing structure, it is made up of following compositions, a combination thereof
Thing and mass percent be:
Described cement includes: portland cement and aluminate cement are in mass ratio for the mixture of 5:1.
Described water reducer includes the organic water reducer containing carboxylic group.
Described polystyrene be particle diameter be the granule of 0.5 micron.
Described foam stabilizer structure is:
Embodiment 6 effect is shown in Table 6.
Table 6
The above is only the preferred embodiment of the present invention, it should be pointed out that: those skilled in the art are come
Saying, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (6)
1. a cement foam stabilizer, it is characterised in that: its structural formula is:
Wherein R1With R2For containing
Having the alkyl of 3-10 carbon number, R represents carbon molecular skeleton.
2. the preparation method of a cement foam stabilizer according to claim 1, it is characterised in that: its course of reaction is as follows:
Wherein reaction condition is: Additive reaction is carried out by the mol ratio of 1:1,
Then, above-mentioned reaction gained monomer contains isocyanates NCO-R-NCO again and reacts to obtain and have the thing of following structure with end group
Matter
Wherein reaction condition is: both carry out dehydration by the mol ratio of 1:1.
3. a foamed cement composition based on the cement foam stabilizer described in claim 1, it is characterised in that: by percent mass
Ratio is composed of the following components:
4. a foamed cement composition based on the cement foam stabilizer described in claim 3, it is characterised in that: described cement bag
Include: any one or any mass ratio in portland cement, phosphate cement or aluminate cement several.
5. a foamed cement composition based on the cement foam stabilizer described in claim 3, it is characterised in that: described water reducer
Including the organic water reducer containing carboxylic group.
6. the application process of a foamed cement composition based on the cement foam stabilizer described in claim 3, it is characterised in that:
Weighing corresponding component by its mass ratio, be then stirred for mix homogeneously, be subsequently adding in mould, at 65 DEG C, insulation 1 is little
Time, then moving into steam curing 12 hours.
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| CN201410736002.7A CN104529219B (en) | 2014-12-04 | 2014-12-04 | Cement foam stabilizing agent, cement composition thereof and application method thereof |
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| CN104529219B true CN104529219B (en) | 2017-01-11 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105415497A (en) * | 2015-12-18 | 2016-03-23 | 江苏兆通工程技术有限公司 | Preparation process of foamed light soil |
| CN106866016A (en) * | 2017-01-21 | 2017-06-20 | 陕西理工学院 | Cement foamed agent prescription |
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| EP0309113B1 (en) * | 1987-09-14 | 1993-07-28 | Zeneca Inc. | Aqueous dispersions |
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| WO1999010399A1 (en) * | 1997-08-27 | 1999-03-04 | Reichhold, Inc. | Chemical thickeners |
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| EP0309113B1 (en) * | 1987-09-14 | 1993-07-28 | Zeneca Inc. | Aqueous dispersions |
| CN1047322A (en) * | 1989-05-12 | 1990-11-28 | 罗姆和哈斯公司 | Multilayer polymeric composition granule with the improved ionically-soluble polymkeric substance of one deck hydrophobicity |
| CN1187828A (en) * | 1995-04-18 | 1998-07-15 | 尤尼剑马化学股份有限公司 | Polymer material |
| CN1189471A (en) * | 1996-12-24 | 1998-08-05 | 拜尔公司 | Use of nonionic, water-dispersible polyisocyanates as concrete additives |
| WO1999010399A1 (en) * | 1997-08-27 | 1999-03-04 | Reichhold, Inc. | Chemical thickeners |
| CN101508553A (en) * | 2009-03-27 | 2009-08-19 | 徐东亮 | Light energy conservation insulating concrete |
| CN101638303A (en) * | 2009-05-07 | 2010-02-03 | 洛阳师范学院 | LC-01 type foam concrete foamer |
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Effective date of registration: 20191225 Address after: 277526, Shandong City, Zaozhuang province Tengzhou sheep town in the top village Patentee after: CHINA UNITED CEMENT TENGZHOU Co.,Ltd. Address before: 510660 room 2310, Qianjin commercial building, No. 17, West euxi Road, Tianhe District, Guangzhou City, Guangdong Province Patentee before: Guangzhou whale Shield Network Technology Co.,Ltd. Effective date of registration: 20191225 Address after: 510660 room 2310, Qianjin commercial building, No. 17, West euxi Road, Tianhe District, Guangzhou City, Guangdong Province Patentee after: Guangzhou whale Shield Network Technology Co.,Ltd. Address before: 212003, No. 2, Mengxi Road, Zhenjiang, Jiangsu Patentee before: Jiangsu University of Science and Technology |