CN115321823A - Foam glass, preparation method and application thereof - Google Patents
Foam glass, preparation method and application thereof Download PDFInfo
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- CN115321823A CN115321823A CN202211152610.4A CN202211152610A CN115321823A CN 115321823 A CN115321823 A CN 115321823A CN 202211152610 A CN202211152610 A CN 202211152610A CN 115321823 A CN115321823 A CN 115321823A
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C11/00—Multi-cellular glass ; Porous or hollow glass or glass particles
- C03C11/007—Foam glass, e.g. obtained by incorporating a blowing agent and heating
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/54—Chiropodists' instruments, e.g. pedicure
- A61B17/545—Chiropodists' instruments, e.g. pedicure using a stream or spray of abrasive particles
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/08—Other methods of shaping glass by foaming
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/02—Pretreated ingredients
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Abstract
The application relates to the technical field of foam glass, and particularly provides foam glass, a preparation method and application thereof. The foam glass is prepared from the following raw materials, by weight, 100 parts of glass powder, 1-50 parts of aerogel loaded with a foaming agent, 0.5-5 parts of fluxing agent and 0.5-10 parts of foam stabilizer, wherein the aerogel loaded with the foaming agent is prepared by adding 1-10 parts of the foaming agent and 0.01-1.5 parts of surfactant into 100 parts of water, uniformly mixing and dissolving, adding 1-20 parts of the aerogel, stirring and mixing to form a suspension, maintaining the suspension state for 0.5-48 hours, filtering and drying. The foamed glass of the present application has higher mechanical strength.
Description
Technical Field
The application relates to the technical field of foam glass, in particular to foam glass, a preparation method and application thereof.
Background
Foam glass, also called foam glass, is a foam material with excellent performance and very high cost performance, but has the problem of not high enough compressive strength. Various methods exist for improving the mechanical strength of foam glass, including the adjustment of raw material components, the use of additives, and the like. Wherein, adopt aerogel as the additive, help forming homogeneous pore in the glass inside, improve the mechanical strength of foam glass. There is still a need for improvement in the prior art.
Disclosure of Invention
In order to solve the problem that the mechanical strength of foam glass is insufficient due to the fact that aerogel is used as an additive of the foam glass in the prior art, the application provides the foam glass, a preparation method and application of the foam glass.
The technical scheme is as follows:
the foam glass comprises, by weight, 100 parts of glass powder, 1-50 parts of aerogel loaded with a foaming agent, 0.5-5 parts of a fluxing agent and 0.5-10 parts of a foam stabilizer.
Preferably, the average particle size of the aerogel supporting a foaming agent is 0.5 to 100 μm.
Preferably, the aerogel in the aerogel carrying the foaming agent is an oxide aerogel.
More preferably, the oxide aerogel is selected from silica aerogel, alumina aerogel, zirconia aerogel, ferroferric oxide aerogel, copper oxide aerogel, titanium dioxide aerogel, siO 2 /Al 2 O 3 Composite aerogel and TiO 2 /SiO 2 Composite aerogel, C/SiO 2 Composite aerogel, C/Al 2 O 3 One or more of composite aerogel and Si-C-O composite aerogel.
Preferably, the foaming agent is a water-soluble foaming agent selected from at least one of sodium carbonate, ammonium bicarbonate, sodium bicarbonate, ammonium carbonate, potassium bicarbonate, and ammonium carbonate.
Preferably, the preparation method of the aerogel carrying the foaming agent comprises the following steps:
adding 1-10 parts by weight of the foaming agent and 0.01-1.5 parts by weight of surfactant into 100 parts of water, uniformly mixing and dissolving, adding 1-20 parts by weight of the aerogel, stirring and mixing to form a suspension, maintaining the suspension state for 0.5-48 hours, filtering and drying to obtain the foaming agent-loaded aerogel.
More preferably, after said mixing and dissolving, before adding 1-20 parts by weight of said aerogel,
also comprises the following steps: adding 0.1-2 parts by weight of thickening agent, and stirring and mixing uniformly.
Preferably, the surfactant is selected from at least one of a nonionic surfactant, an anionic surfactant, a cationic surfactant, or a zwitterionic surfactant.
The preparation method of the foam glass of any one of the embodiments comprises the steps of uniformly mixing the raw material components, injecting the mixture into a mold, heating to 600-700 ℃ at a heating rate of 5-20 ℃/min, keeping the temperature for 30 +/-5 minutes, continuously heating to 850-1000 ℃ at a heating rate of 3-12 ℃/min, keeping the temperature for 30-60 minutes, then cooling to 550-650 ℃ at a cooling rate of 10-20 ℃/min, keeping the temperature for 30-90 minutes, and continuously cooling to room temperature to obtain the foam glass.
Use of a foam glass according to any of the above embodiments as a foot stone.
In summary, the present application has the following beneficial effects:
1. according to the invention, the foaming agent used by the foaming glass is loaded in the microporous structure in the aerogel, then the aerogel and other raw materials of the foaming glass are mixed to prepare the foaming glass, fine aerogel particles are equivalent to foam nuclei one by one, and the foaming agent loaded in the microporous structure in the aerogel foams in the sintering process, so that the bubbles foamed by the foaming agent in the foaming glass are uniform and fine through the foam nuclei forming effect of the aerogel and the countless nano-scale microporous structures in the aerogel. Therefore, the foamed glass provided by the invention has a uniform foaming structure and better mechanical strength.
2. According to the invention, the water-soluble foaming agent is dissolved in water, under the action of water, the foaming agent is permeated into the inner pores of the aerogel under the wetting and permeating action of the surfactant, and the foaming agent is loaded in the nano-scale pores in the aerogel after drying. The aerogel provided by the invention can be commercially available, and has rich raw material sources.
3. The foam glass provided by the invention contains nano-scale pore bubbles of aerogel and micron-scale to millimeter-scale bubbles generated by foaming of the foaming agent, the bubbles have both open pore structures and closed pore structures, can be used as a sound absorption material or a heat insulation material with high cost performance, and simultaneously has high mechanical strength and high cost performance, and can also be used as a foot grinding stone.
4. At present, volcanic stones are mainly adopted as the foot grinding stones in the market, but the pore diameters of the volcanic stones are large and uneven, the quality of the naturally formed volcanic stones is difficult to unify, and the volcanic stones serving as the foot grinding stones have good effects, but foot skins are easy to abrade. Adopt the foam glass of this application as the grindstone, the aperture is littleer, more even, when can regard as the grindstone, can not harm the foot skin, and the security is high.
5. The volcanic rock is a non-renewable resource. The foam glass of this application can adopt useless glass or the glass of retrieving to grind into powder, realizes the recycle of resource, belongs to the recycle of resource, compares the vesuvianite, and the advantage is obvious.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below.
Throughout the specification, unless otherwise specifically noted, terms used herein should be understood as having meanings as commonly used in the art. Accordingly, 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 the case of a contradiction or inconsistency, the present specification is to be interpreted as priority.
The foam glass comprises, by weight, 100 parts of glass powder, 1-50 parts of aerogel loaded with a foaming agent, 0.5-5 parts of a fluxing agent and 0.5-10 parts of a foam stabilizer.
In the invention, the fluxing agent can be one or more selected from borax, barium carbonate, sodium sulfate, calcium sulfate, boric acid, calcium fluoride and sodium fluosilicate; the foam stabilizer can be one or more selected from sodium phosphate, zinc oxide, sodium silicate and manganese dioxide.
The aerogel is filled with a nano-scale pore structure and can be used as a loading channel of a foaming agent. In the invention, the foaming agent-loaded aerogel mainly loads the foaming agent in the internal pores of the aerogel, and the foaming agent can be stably loaded in the pore structure because the internal pore structure of the aerogel is an open pore structure. Of course, it is inevitable that a small amount of foaming agent will be present on the outer surface of the aerogel, but such outer surface has poor load mode stability, and the foaming agent is relatively easily removed from the outer surface of the aerogel during drying.
Preferably, the average particle size of the aerogel supporting a foaming agent is 0.5 to 100 μm. The average particle size of the aerogel is low, so that the aerogel is suitable for permeation of a foaming agent aqueous solution, is beneficial to suspension of the aerogel in an aqueous solution in preparation of the aerogel loaded with the foaming agent, and is suitable for uniform dispersion of the aerogel loaded with the foaming agent in a pre-sintering process in glass. Still more preferably, the average particle size of the aerogel supporting the foaming agent is 3 to 70 μm. Still more preferably, the average particle diameter of the aerogel supporting the foaming agent is 5 to 50 μm.
Preferably, the aerogel in the aerogel carrying the foaming agent is an oxide aerogel.
In the present invention, the oxide aerogel means that the main component constituting the aerogel is an inorganic oxide, a composite of an inorganic oxide and an inorganic oxide, or a composite of an inorganic oxide and other components. Generally, the inorganic oxide in the main component of the aerogel is silica, alumina, copper oxide, ferroferric oxide, titanium dioxide, zirconium dioxide, or the like.
More preferably, the oxide aerogel is selected from silica aerogel, alumina aerogel, zirconia aerogel, ferroferric oxide aerogel, copper oxide aerogel, titanium dioxide aerogel, siO 2 /Al 2 O 3 Composite aerogel and TiO 2 /SiO 2 Composite aerogel, C/SiO 2 Composite aerogel, C/Al 2 O 3 One or more of composite aerogel and Si-C-O composite aerogel.
Preferably, the foaming agent is a water-soluble foaming agent selected from at least one of sodium carbonate, ammonium bicarbonate, sodium bicarbonate, ammonium carbonate, potassium bicarbonate, and ammonium carbonate.
The foaming agent adopted in the invention is a foaming agent commonly used in the field of foam glass. However, since the present application requires the introduction of the foaming agent into the pore structure of the aerogel through an aqueous solution, it is required that the foaming agent be dissolved in water to form a uniform and stable aqueous solution. More preferably, the foaming agent of the present invention may be selected from one or more of sodium carbonate, sodium bicarbonate, potassium bicarbonate and potassium carbonate.
Preferably, the preparation method of the aerogel carrying the foaming agent comprises the following steps:
adding 1-10 parts by weight of the foaming agent and 0.01-1.5 parts by weight of surfactant into 100 parts of water, uniformly mixing and dissolving, adding 1-20 parts by weight of the aerogel, stirring and mixing to form a suspension, maintaining the suspension state for 0.5-48 hours, filtering and drying to obtain the foaming agent-loaded aerogel.
The aerogel has a density lower than that of the aqueous blowing agent solution, and is normally suspended on the surface of the aqueous solution, but can be suspended in the aqueous solution after absorbing water by exhibiting the wetting action of the active agent, vigorous stirring, and continuous penetration of the aqueous solution into the aerogel.
Because the aerogel is usually hydrophobic, the surfactant is added into the aqueous solution, so that the aqueous solution can wet the surface of the aerogel and the aqueous solution can permeate into the aerogel (the capillary effect of pores of the aerogel is also beneficial to the permeation of the aqueous solution), namely, under the action of the surfactant, the aqueous solution of the foaming agent firstly wets the outer surface of the aerogel and then permeates into the pores in the aerogel.
In the present invention, the suspension state is maintained for 0.5 to 48 hours, so that the aqueous solution of the foaming agent gradually penetrates into the pore structure of the aerogel. More preferably, the time for maintaining the suspended state is 2 to 24 hours, and still more preferably, the time for maintaining the suspended state is 5 to 18 hours.
More preferably, after said mixing and dissolving, before adding 1-20 parts by weight of said aerogel,
also comprises the following steps: adding 0.1-2 parts by weight of thickening agent, and stirring and mixing uniformly.
And a proper amount of thickening agent is added, so that the viscosity of the foaming agent aqueous solution can be improved, the aerogel can be suspended and dispersed in the aqueous solution, and the suspension state of the aerogel in the aqueous solution can be maintained. However, the viscosity of the aqueous solution is too high to facilitate wetting and penetration of the aerogel, especially penetration. Therefore, in the present invention, the thickener is added in an amount such that the viscosity (25 ℃) of the aqueous blowing agent solution does not exceed 100mPa.s, more preferably, the viscosity does not exceed 50mPa.s, and still more preferably, the viscosity does not exceed 20mPa.s. The viscosity test can be carried out by adopting an NDJ-5S rotational viscometer, the test temperature is 25 ℃, and the rotating speed is 10rpm/min.
Preferably, the surfactant is selected from at least one of a nonionic surfactant, an anionic surfactant, a cationic surfactant, or a zwitterionic surfactant.
In the present invention, the surfactant may be selected from conventional commercially available surfactants such as organic fluorine-based, silicone-based or hydrocarbon-based surfactants, and specifically, nonionic fluorine-based surfactants, anionic fluorine-based surfactants, polyether-modified silicone oil-based surfactants, fatty alcohol polyoxyethylene ether-based surfactants, alkylphenol polyoxyethylene ether-based surfactants, and the like may be used. With fluorosurfactants, wetting and penetration can be achieved at lower concentrations (e.g., 0.01-0.05 wt%); the polyether modified silicone oil surfactant is adopted, the concentration can be 0.1-0.5wt% or higher, the wetting and penetrating effects can be realized, and particularly, the heptamethyltrisiloxane surfactant has good wetting and penetrating effects; wetting and penetration effects can be achieved with hydrocarbon based surfactants, typically at concentrations of 0.3 to 1wt% or higher.
In the invention, in order to have good wetting and penetrating effects, two or more than two surfactants can be compounded and matched for use.
On the other hand, the application also provides a preparation method of the foam glass according to any one of the embodiments, the raw material components are uniformly mixed and injected into a mold, the temperature is raised to 600-700 ℃ at the heating rate of 5-20 ℃/min, the temperature is kept for 30 +/-5 minutes, the temperature is raised to 850-1000 ℃ at the heating rate of 3-12 ℃/min, the temperature is kept for 30-60 minutes, the temperature is lowered to 550-650 ℃ at the cooling rate of 10-20 ℃/min, the temperature is kept for 30-90 minutes, and the foam glass is continuously cooled to room temperature to obtain the foam glass.
Further, the foam glass of the present application may use waste glass or recycled glass as a raw material. The waste glass or the recycled glass is cleaned before use and then crushed to have a particle size of less than 5mm, or less than 1mm, and can be further crushed to have a lower particle size, such as 200-300 meshes, by using a grinding device such as a ball mill.
Furthermore, different toner can be added into the raw material components of the foam glass according to the needs to obtain the foam glass with different colors.
Furthermore, the foam glass can be made into bicolor or multicolor matching foam glass. Respectively cutting or grinding the two or more kinds of foam glass with different colors to required sizes to obtain particles with different colors, uniformly mixing, placing the particles in a medium-frequency or high-frequency kiln at 650-750 ℃ or further 660-720 ℃, heating for several seconds to tens of seconds to bond the particles with different colors, cooling to 550-650 ℃, preserving heat for 30-90 minutes, and continuously cooling to room temperature to obtain the bicolor or multicolor color matching foam glass. The double-color or multi-color matching foam glass can be cut to the size according to the requirement before actual use.
In a further aspect, the present application provides a use of the foam glass according to any of the above embodiments as a foot stone.
When the foam glass of the present invention is used as a grinding stone, the aerogel carrying a foaming agent may be present in the above raw material components in a lower amount, for example, 1 to 10 parts by weight, or in a lower amount, 1 to 5 parts by weight, in order to reduce the cost.
The foam glass and the method for producing the same according to the present application will be described in detail with reference to examples, comparative examples and experimental data.
Unless otherwise specified, the parts in each of the following examples and comparative examples are parts by weight.
Preparation example 1
Adding 5 parts of sodium carbonate and 0.03 part of fluorinated surfactant FC-4430 into 100 parts of water, uniformly mixing and dissolving, adding 10 parts of silicon dioxide aerogel with the average particle size of 50 microns, stirring and mixing to form a suspension, continuously stirring and maintaining the suspension state for 10 hours, standing, filtering, and drying in an oven at 60 ℃ overnight to obtain the aerogel loaded with the foaming agent.
Preparation example 2
Adding 3 parts of sodium bicarbonate, 0.2 part of polyether modified heptamethyltrisiloxane L77 and 0.8 part of AEO-9 into 100 parts of water, uniformly mixing and dissolving, adding 5 parts of silica aerogel with the average particle size of 23 micrometers, stirring and mixing to form a suspension, continuously stirring to maintain the suspension state for 5 hours, standing, filtering, and drying in an oven at 60 ℃ overnight to obtain the aerogel loaded with the foaming agent.
Preparation example 3
Adding 8 parts of potassium carbonate, 0.02 part of fluorinated surfactant FC-4430 and 0.7 part of AEO-9 into 100 parts of water, uniformly mixing and dissolving, adding a TIGO3060 thickening agent to ensure that the viscosity of the solution is 15mPa.s at 25 ℃ and a stirring speed of 10rpm/min, adding 16 parts of alumina aerogel with the average particle size of 10 micrometers, stirring and mixing to form a suspension, continuously stirring and maintaining the suspension state for 15 hours, standing, filtering, and drying in an oven at 60 ℃ for 12 hours to obtain the aerogel loaded with the foaming agent.
Preparation example 4
Adding 2 parts of sodium carbonate, 0.15 part of polyether modified heptamethyltrisiloxane L77 and 1 part of OP-10 into 100 parts of water, uniformly mixing and dissolving, adding a TIGO3060 thickening agent to ensure that the viscosity of the solution is 10mPa.s at 25 ℃ and a stirring speed of 10rpm, adding 7 parts of alumina aerogel with the average particle size of 15 micrometers, stirring and mixing to form a suspension, continuously stirring to maintain the suspension state for 18 hours, standing, filtering, and drying in an oven at 60 ℃ overnight to obtain the aerogel loaded with the foaming agent.
Preparation example 5
Adding 6 parts of sodium carbonate and 1 part of AEO-9 into 100 parts of water, uniformly mixing and dissolving, adding 18 parts of silicon dioxide aerogel with the average particle size of 65 micrometers, stirring and mixing to form a suspension, continuously stirring to maintain the suspension state for 12 hours, standing, filtering, and drying in an oven at 60 ℃ overnight to obtain the aerogel loaded with the foaming agent.
Example 1
Grinding 100 parts of glass powder, 3 parts of barium carbonate and 3 parts of sodium phosphate to be not more than 16 meshes, adding 30 parts of aerogel loaded with foaming agent in preparation example 1, uniformly mixing, injecting into a mold, heating to 620 ℃ at a heating rate of 12 ℃/min, preserving heat for 30 minutes, continuously heating to 880 ℃ at a heating rate of 8 ℃/min, preserving heat for 50 minutes, then cooling to 600 ℃ at a cooling rate of 15 ℃/min, preserving heat for 60 minutes, and continuously naturally cooling to room temperature to obtain the foam glass.
Example 2
In example 1, the blowing agent-supporting aerogel of preparation example 1 was adjusted from 30 parts to 15 parts, and the remaining steps were kept unchanged to obtain a foam glass.
Example 3
Grinding 100 parts of glass powder, 1 part of calcium sulfate and 8 parts of zinc oxide to be not more than 16 meshes, adding 45 parts of aerogel loaded with foaming agent in preparation example 2, uniformly mixing, injecting into a mold, heating to 650 ℃ at a heating rate of 12 ℃/min, preserving heat for 32 minutes, continuously heating to 950 ℃ at a heating rate of 10 ℃/min, preserving heat for 45 minutes, then cooling to 610 ℃ at a cooling rate of 18 ℃/min, preserving heat for 80 minutes, and continuously naturally cooling to room temperature to obtain the foam glass.
Example 4
Grinding 100 parts of glass powder, 4 parts of boric acid and 2 parts of sodium silicate to be not more than 16 meshes, adding 20 parts of aerogel loaded with foaming agent in preparation example 3, uniformly mixing, injecting into a mold, heating to 660 ℃ at a heating rate of 8 ℃/min, preserving heat for 30 minutes, continuously heating to 880 ℃ at a heating rate of 9 ℃/min, preserving heat for 50 minutes, then cooling to 600 ℃ at a cooling rate of 14 ℃/min, preserving heat for 70 minutes, and continuously naturally cooling to room temperature to obtain the foam glass.
Example 5
In preparation example 4, the foaming agent-supported aerogel of preparation example 3 was replaced with the foaming agent-supported aerogel of preparation example 4 in equal parts by weight, and the remaining steps were kept unchanged to obtain foam glass.
Example 6
Grinding 100 parts of glass powder, 3 parts of calcium sulfate and 6 parts of manganese dioxide to be not more than 16 meshes, adding 4 parts of the aerogel loaded with the foaming agent in preparation example 5, uniformly mixing, injecting into a mold, heating to 620 ℃ at a heating rate of 8 ℃/min, keeping the temperature for 30 minutes, continuously heating to 870 ℃ at a heating rate of 5 ℃/min, keeping the temperature for 40 minutes, then cooling to 570 ℃ at a cooling rate of 16 ℃/min, keeping the temperature for 60 minutes, and continuously naturally cooling to room temperature to obtain the foam glass.
Example 7
In example 6, the blowing agent-supporting aerogel of preparation example 5 was adjusted from 4 parts to 35 parts, and the remaining steps were kept unchanged to obtain a foam glass.
Example 8
Grinding 100 parts of glass powder, 4 parts of boric acid and 4 parts of manganese dioxide to be not more than 16 meshes, adding 20 parts of the foaming agent loaded aerogel prepared in preparation example 1, uniformly mixing, injecting into a mold, heating to 650 ℃ at a heating rate of 16 ℃/min, keeping the temperature for 30 minutes, continuously heating to 900 ℃ at a heating rate of 8 ℃/min, keeping the temperature for 40 minutes, then cooling to 580 ℃ at a cooling rate of 18 ℃/min, keeping the temperature for 60 minutes, and continuously naturally cooling to room temperature to obtain the foam glass.
Comparative example 1
In example 1, the foaming agent-loaded aerogel of preparation example 1 was replaced with equal parts by weight of sodium carbonate, and the remaining steps were kept unchanged to obtain foamed glass.
Comparative example 2
In example 1, 10 parts of sodium carbonate and 20 parts of the silica aerogel of production example 1 were substituted for the foaming agent-supporting aerogel of production example 1, and the remaining steps were kept unchanged to obtain a foamed glass.
Comparative example 3
In example 1, 15 parts of sodium carbonate and 15 parts of the silica aerogel in production example 1 were substituted for the foaming agent-supporting aerogel of production example 1, and the remaining steps were kept unchanged to obtain a foamed glass.
Performance test
The volume density is tested according to the method of JC/T647-2014;
the compressive strength and the bending strength were tested according to the method of GB/T5486-2008.
The results are shown in table 1 below.
TABLE 1
| Bulk density/Kg/m 3 | Compressive strength/MPa | |
| Example 1 | 0.18 | 1.72 |
| Example 2 | 0.26 | 2.46 |
| Example 3 | 0.13 | 1.25 |
| Example 4 | 0.21 | 2.19 |
| Example 5 | 0.24 | 2.49 |
| Example 6 | 0.47 | 5.52 |
| Example 7 | 0.16 | 1.42 |
| Example 8 | 0.20 | 2.14 |
| Comparative example 1 | 0.17 | 0.95 |
| Comparative example 2 | 0.22 | 1.27 |
| Comparative example 3 | 0.20 | 1.12 |
Therefore, as can be seen from the results in Table 1, the foam glass of the present invention has a higher foaming degree and compressive strength at a similar amount of the foaming agent added, and has a higher tensile strength at a similar density.
The specific embodiments are only for explaining the present application and are not limiting to the present application, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the claims of the present application.
Claims (10)
1. A foam glass characterized by: the foaming agent is prepared from 100 parts of glass powder, 1-50 parts of aerogel loaded with a foaming agent, 0.5-5 parts of fluxing agent and 0.5-10 parts of foam stabilizer.
2. The foam glass according to claim 1, wherein: the average grain diameter of the aerogel carrying the foaming agent is 0.5-100 mu m.
3. The foam glass according to claim 1, wherein: the aerogel in the aerogel loaded with the foaming agent is oxide aerogel.
4. The foam glass according to claim 3, wherein: the oxide aerogel is selected from silicon dioxide aerogel, aluminum oxide aerogel, zirconium oxide aerogel, ferroferric oxide aerogel, copper oxide aerogel, titanium dioxide aerogel and SiO 2 /Al 2 O 3 Composite aerogel and TiO 2 /SiO 2 Composite aerogel, C/SiO 2 Composite aerogel, C/Al 2 O 3 One or more of composite aerogel and Si-C-O composite aerogel.
5. The foam glass according to claim 1, wherein: the foaming agent is a water-soluble foaming agent and is selected from at least one of sodium carbonate, ammonium bicarbonate, sodium bicarbonate, ammonium carbonate, potassium bicarbonate and ammonium carbonate.
6. The foam glass according to claim 1, wherein: the preparation method of the aerogel loaded with the foaming agent comprises the following steps:
adding 1-10 parts by weight of the foaming agent and 0.01-1.5 parts by weight of surfactant into 100 parts of water, uniformly mixing and dissolving, adding 1-20 parts by weight of the aerogel, stirring and mixing to form a suspension, maintaining the suspension state for 0.5-48 hours, filtering and drying to obtain the foaming agent-loaded aerogel.
7. The foam glass according to claim 6, wherein: after the uniform mixing and dissolution, before adding 1-20 parts by weight of the aerogel,
the method also comprises the following steps: adding 0.1-2 weight parts of thickening agent, stirring and mixing uniformly.
8. The foam glass according to claim 1, wherein: the surfactant is selected from at least one of nonionic surfactant, anionic surfactant, cationic surfactant or zwitterionic surfactant.
9. A method of producing a foam glass according to any one of claims 1 to 8, characterized in that: uniformly mixing the raw material components, injecting the mixture into a mold, heating to 600-700 ℃ at a heating rate of 5-20 ℃/min, preserving heat for 30 +/-5 minutes, continuously heating to 850-1000 ℃ at a heating rate of 3-12 ℃/min, preserving heat for 30-60 minutes, then cooling to 550-650 ℃ at a cooling rate of 10-20 ℃/min, preserving heat for 30-90 minutes, and continuously cooling to room temperature to obtain the foam glass.
10. Use of a foam glass according to any one of claims 1 to 8 as a foot stone.
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| CN202211152610.4A CN115321823B (en) | 2022-09-21 | 2022-09-21 | Foam glass, preparation method and application thereof |
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| CN202211152610.4A CN115321823B (en) | 2022-09-21 | 2022-09-21 | Foam glass, preparation method and application thereof |
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| CN115321823B CN115321823B (en) | 2023-10-20 |
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| CN107253824A (en) * | 2017-04-28 | 2017-10-17 | 青岛高智高新科技有限公司 | A kind of foam glass structure and its manufacture method |
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| CN111285593A (en) * | 2020-03-26 | 2020-06-16 | 安徽汇昌新材料有限公司 | Preparation method of foam glass special for sound absorption |
| CN112679787A (en) * | 2021-01-22 | 2021-04-20 | 成都新柯力化工科技有限公司 | Silica aerogel heat-preservation organic glass for architectural decoration and preparation method thereof |
| CN112745029A (en) * | 2021-02-05 | 2021-05-04 | 中化学华陆新材料有限公司 | Preparation method of energy-saving aerogel composite foam glass |
| CN113003947A (en) * | 2021-03-24 | 2021-06-22 | 南京工业大学 | Preparation method of silicon-based aerogel-foam material heat insulation composite material |
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| CN106316135A (en) * | 2016-08-01 | 2017-01-11 | 吉林建筑大学 | Silica aerogel-filled open-cell foam glass particle and manufacturing method thereof |
| CN106587646A (en) * | 2016-12-26 | 2017-04-26 | 李光武 | Preparation method of nano-porous glass and nano-porous glass |
| CN106746684A (en) * | 2016-12-26 | 2017-05-31 | 李光武 | A kind of glass and its application |
| CN107253824A (en) * | 2017-04-28 | 2017-10-17 | 青岛高智高新科技有限公司 | A kind of foam glass structure and its manufacture method |
| CN107324659A (en) * | 2017-07-17 | 2017-11-07 | 上海永丽节能材料有限公司 | A kind of foam glass abrasive product and preparation method thereof |
| CN108314464A (en) * | 2018-02-27 | 2018-07-24 | 南京工业大学 | A method of preparing foam glass-aerogel heat-insulating material |
| CN109678349A (en) * | 2019-02-25 | 2019-04-26 | 深圳市辉翰科技发展有限公司 | A method of foam glass is prepared using post-consumer glass and porous ceramic grain |
| CN111285593A (en) * | 2020-03-26 | 2020-06-16 | 安徽汇昌新材料有限公司 | Preparation method of foam glass special for sound absorption |
| CN112679787A (en) * | 2021-01-22 | 2021-04-20 | 成都新柯力化工科技有限公司 | Silica aerogel heat-preservation organic glass for architectural decoration and preparation method thereof |
| CN112745029A (en) * | 2021-02-05 | 2021-05-04 | 中化学华陆新材料有限公司 | Preparation method of energy-saving aerogel composite foam glass |
| CN113003947A (en) * | 2021-03-24 | 2021-06-22 | 南京工业大学 | Preparation method of silicon-based aerogel-foam material heat insulation composite material |
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