CN110759747A - Plaster and preparation method thereof - Google Patents
Plaster and preparation method thereof Download PDFInfo
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- CN110759747A CN110759747A CN201810835727.XA CN201810835727A CN110759747A CN 110759747 A CN110759747 A CN 110759747A CN 201810835727 A CN201810835727 A CN 201810835727A CN 110759747 A CN110759747 A CN 110759747A
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- gypsum
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
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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
- 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
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A gypsum body and a method for preparing the same, the method comprising: providing a gypsum slurry, the gypsum slurry comprising: gypsum and nanoporous materials; carrying out a casting molding process on the gypsum slurry to form a gypsum blank; and curing and drying the gypsum blank to form a gypsum body, wherein a plurality of nano holes are formed in the gypsum body. The invention is convenient for preparing the gypsum body which accurately meets the production requirement, improves the designability of the pore structure of the gypsum body, is beneficial to enhancing the inhibition effect of the gypsum body on the convection of air molecules and improves the heat preservation effect of the gypsum body.
Description
Technical Field
The invention relates to the field of building materials, in particular to a gypsum body and a preparation method thereof.
Background
Gypsum is an air-setting cementitious material containing calcium sulfate as a main component. The gypsum has wide application, is a common industrial material and a common building material, and can be used for producing gypsum building products, cement retarders, medical food additives and the like.
The gypsum body has excellent heat insulation performance, so the gypsum can also be used for manufacturing indoor heat insulation boards. The gypsum body has good heat insulation performance and is related to the porous structure of the gypsum body. Theoretically, only 18.6 percent of water by mass is needed for the hydration reaction of the gypsum, but in order to make the gypsum slurry have plasticity, 60 to 80 percent of water by mass is usually added, so that a large amount of excess water is evaporated after the gypsum is hardened, and the internal porosity of the gypsum body is large. The porous structure makes the gypsum body have small heat conductivity and slow heat transfer because of the small heat conductivity of the air.
However, the existing preparation method of the gypsum body still needs to be improved.
Disclosure of Invention
The invention aims to provide a gypsum body and a preparation method thereof, which are convenient for preparing the gypsum body accurately meeting the production requirements, improve the designability of the pore structure of the gypsum body, contribute to enhancing the inhibition effect of the gypsum body on the convection of air molecules and improve the heat preservation effect of the gypsum body.
In order to solve the above problems, the present invention provides a method for preparing gypsum, comprising: providing a gypsum slurry, the gypsum slurry comprising: gypsum and nanoporous materials; carrying out a casting molding process on the gypsum slurry to form a gypsum blank; and curing and drying the gypsum blank to form a gypsum body, wherein a plurality of nano holes are formed in the gypsum body.
Optionally, the gypsum body further has a plurality of first holes, and the aperture of the first holes is larger than that of the nanopores; before the casting molding process is carried out, the method further comprises the following steps: providing a foaming agent, and generating foam by using an aqueous solution of the foaming agent; mixing the gypsum slurry with the foam.
Optionally, the gypsum body further has a plurality of second holes, and the pore diameter of the second holes is larger than that of the nanopores; the gypsum slurry also includes an air entraining agent that generates bubbles within the gypsum slurry.
Optionally, the pore diameter of the nanopore is 2nm to 70 nm.
Optionally, the nanoporous material is a silicon-based mesoporous material or a non-silicon-based mesoporous material.
Optionally, the mass ratio of the gypsum in the gypsum slurry to the nanoporous material is 0.3-4.0.
Optionally, the porosity of the nanopores in the gypsum body is 30% to 80%.
Optionally, the gypsum slurry further comprises one or more of a foam stabilizer, a retarder, fly ash and cement.
Optionally, the temperature for maintaining and drying is 5-75 ℃.
Correspondingly, the invention also provides a gypsum body, and a plurality of nano holes are formed in the gypsum body.
Optionally, the pore diameter of the nanopore is 2nm to 70 nm.
Optionally, the thickness of the gypsum body is 5 mm-300 mm.
Optionally, the gypsum body further has a plurality of holes, and the hole diameter of the holes is larger than that of the nano holes.
Compared with the prior art, the technical scheme of the invention has the following advantages:
the technical scheme of the preparation method of the gypsum body provided by the invention comprises the following steps: providing a gypsum slurry, the gypsum slurry comprising: gypsum and nanoporous materials; carrying out a casting molding process on the gypsum slurry to form a gypsum blank; and curing and drying the gypsum blank to form a gypsum body, wherein a plurality of nano holes are formed in the gypsum body. On one hand, the size and the distribution of the nano-pores in the prepared gypsum body can be adjusted by controlling the size and the distribution of the nano-pores of the added nano-pore material, so that the gypsum body which accurately meets the production requirement can be prepared conveniently, and the designability of the structure of the gypsum body is improved. On the other hand, the heat preservation effect of the gypsum body is related to the aperture of the nano hole, and the small aperture of the nano hole is beneficial to inhibiting the convection of air molecules in the nano hole, so that the heat preservation effect of the gypsum body is improved.
In the alternative, the pore diameter of the nanopore is 2 nm-70 nm, so that on one hand, the improvement effect of the nanopore on the heat preservation performance of the gypsum body is favorably ensured; on the other hand, the production difficulty and the production cost of the nanopore material are reduced.
In the alternative, the mass ratio of the gypsum to the nanoporous material in the gypsum slurry is 0.3-4.0, and the mass ratio of the gypsum to the nanoporous material is proper, so that on one hand, the porosity of nanopores in a subsequently formed gypsum body is proper, and the improvement effect of the nanopores on the heat insulation performance of the gypsum body is ensured; on the other hand, the strength and the bearing capacity of the gypsum body are ensured.
In the alternative, the porosity of the nano-pores in the gypsum body is 30% -80%, and the porosity of the nano-pores is proper, so that on one hand, the improvement effect of the nano-pores on the heat preservation performance of the gypsum body is ensured, and on the other hand, the strength and the bearing capacity of the gypsum body are ensured to meet the production requirements.
In the alternative, the temperature for maintaining and drying is 5-75 ℃, on one hand, the forming quality of the gypsum body is favorably ensured, and the cracking of the surface of the formed gypsum body caused by the excessively high temperature and the excessively high setting speed of the gypsum body is prevented; on the other hand, the production and manufacturing efficiency of the gypsum body is improved.
Detailed Description
As known from the background art, the preparation method of the existing gypsum body still needs to be improved.
Now, the analysis is carried out by combining with a preparation method of the plaster body, and the process steps for preparing the plaster body mainly comprise: providing a gypsum slurry, the gypsum slurry comprising: gypsum and water; providing a foaming agent, and generating foam by using an aqueous solution of the foaming agent; mixing the gypsum slurry with the foam; carrying out a casting molding process on the gypsum slurry to form a gypsum blank; and curing and drying the gypsum blank to form a gypsum body, wherein a plurality of holes are formed in the gypsum body.
However, the above method has difficulty in controlling the pore structure of the prepared gypsum body, and the reason for this is analyzed as follows:
the foam is generated by introducing air into an aqueous solution of a foaming agent under the mechanical action, so that the size of the foam is not easy to control, and the size of the foam is easy to change under the influence of the external environment due to poor stability of the foam, so that the size and the distribution of the holes are difficult to predict, therefore, the method has poor controllability on the hole structure of the gypsum body, and the formed gypsum body is difficult to accurately meet the production requirements.
In addition, the holes are large in aperture, so that air molecules in the holes are easy to convect, and the heat preservation effect of the gypsum body is influenced.
In order to solve the technical problem, the invention provides a preparation method of a gypsum body, which comprises the following steps: providing a gypsum slurry, the gypsum slurry comprising: gypsum and nanoporous materials; carrying out a casting molding process on the gypsum slurry to form a gypsum blank; and curing and drying the gypsum blank to form a gypsum body, wherein a plurality of nano holes are formed in the gypsum body.
The preparation method of the gypsum body can prepare the gypsum body which accurately meets the production requirements, and is beneficial to improving the heat preservation effect of the gypsum body.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, specific embodiments thereof are described in detail below.
A method of preparing gypsum body comprising: providing a gypsum slurry, the gypsum slurry comprising: gypsum and nanoporous materials.
The nano-pore material is added into the gypsum slurry, so that a plurality of nano-pores are formed in a subsequently formed gypsum body, the pore diameter of each nano-pore is small, the convection of air molecules in the nano-pores can be inhibited, and the heat insulation performance of the gypsum body is improved.
In addition, the size and distribution of the nanopores in the prepared gypsum body can be adjusted by controlling the size and distribution of the nanopores of the added nanoporous material, and thus the nanoporous material contributes to the improvement of designability of the pore structure of the prepared gypsum body.
The nano-pore material is a silicon-based mesoporous material or a non-silicon-based mesoporous material.
The silicon-based Mesoporous material is selected from MCM (Mesoporous silicon) series silicon-based Mesoporous materials, HMS (Heterozygous Mesoporous silicon) series silicon-based Mesoporous materials, MSU (Michigan State University) series silicon-based Mesoporous materials, SBA (Santa Bara Amorphous) series silicon-based Mesoporous materials, FDU (Fudan University) series silicon-based Mesoporous materials, ZSM (Zeolite silicon) series silicon-based Mesoporous materials, KIT (Korea Advanced Institute of Science and technology) series Mesoporous silicon-based materials, HOM (high Material silicon) series Mesoporous silicon-based materials, FSM (materials Mesoporous silicon) series silicon-based Mesoporous materials, AMS (adsorbed-Mesoporous silicon) series Mesoporous materials, and DElTEC series Mesoporous materials.
The non-silicon-based mesoporous material is selected from one or more of mesoporous carbon, metal oxide mesoporous material, metal mesoporous material, phosphate mesoporous material, sulfide mesoporous material and nitride mesoporous material.
The pore diameter of the nano-pore material is 2 nm-70 nm, the pore diameter of the nano-pore material determines the pore diameter of a subsequently formed nano-pore in a gypsum body, and the pore diameter of the nano-pore material is proper, so that the pore diameter of the nano-pore in the gypsum body is proper, the convection of air molecules in the nano-pore is inhibited, and the heat preservation effect of the gypsum body is improved.
The mass ratio of the gypsum to the nano-porous material in the gypsum slurry is 0.3-4.0, and the mass ratio of the gypsum to the nano-porous material is proper, so that on one hand, the porosity of nano-pores in a subsequently formed gypsum body is proper, and the improvement effect of the nano-pores on the heat insulation performance of the gypsum body is ensured; on the other hand, the strength and the bearing capacity of the gypsum body are ensured.
In the embodiment, the gypsum is industrial solid waste gypsum, which is beneficial to environmental protection and production cost reduction.
In this embodiment, a proper amount of water is added to the gypsum slurry.
The gypsum slurry also comprises one or more of a foam stabilizer, a retarder and fly ash.
Subsequently generating a foam with an aqueous foaming agent solution and mixing the gypsum slurry with the foam. The foam stabilizer can improve the viscosity of foam, reduce the fluidity of the foam, and prevent the foam from being broken, thereby improving the pore structure in a subsequently formed gypsum body.
In this embodiment, the foam stabilizer is polyacrylamide. In other embodiments, the foam stabilizer may also be polyvinyl alcohol, starch, cellulose, silicone polyether emulsion, or fatty amide.
In this embodiment, the mass ratio of the foam stabilizer to the aqueous solution of the foaming agent in the gypsum slurry is 0.05% to 0.30%, so that on one hand, the foam stabilizer can ensure the effect of enhancing the foam stability, and on the other hand, the strength of the subsequently formed gypsum body can be ensured.
The set retarder facilitates reducing a setting rate of the gypsum slurry, preventing the gypsum slurry from setting prematurely.
The retarder is an inorganic retarder or an organic retarder.
The inorganic retarder is selected from one or any combination of phosphate, metaphosphate, borax or sodium fluosilicate.
The organic retarder is selected from one or any combination of citric acid, gluconic acid, salicylic acid, polyhydric alcohol, glucose or sucrose.
In this embodiment, the mass ratio of the retarder to the gypsum in the gypsum slurry is 0.05% to 0.5%, so that on one hand, the setting speed of the gypsum slurry is appropriate, and the plasticity of the gypsum slurry in the subsequent casting process is ensured; on the other hand, the quality of the subsequently formed gypsum body is ensured, and the phenomenon that the gypsum body generates dry cracking shrinkage or shrinkage cracks due to excessive water evaporation caused by excessive addition of the retarder is avoided.
The fly ash is beneficial to improving the quality of a subsequently formed gypsum body and preventing the gypsum body from wrinkling or cracking.
In this embodiment, the mass ratio of the fly ash to the gypsum in the gypsum slurry is 5% to 40%, on one hand, the improvement effect of the fly ash on the quality of the subsequently formed gypsum body can be ensured, and on the other hand, the strength and the bearing capacity of the subsequently formed gypsum body can be favorably ensured.
In this embodiment, after providing the gypsum slurry, the method for preparing a gypsum body further includes: providing a foaming agent, and generating foam by using an aqueous solution of the foaming agent; mixing the gypsum slurry with the foam.
In this embodiment, the gypsum slurry is uniformly mixed with the foam, so that a plurality of first holes are formed in a subsequently formed gypsum body, and the pore diameter of each first hole is larger than that of each nano-pore. The thermal conductivity of air is low compared to the thermal conductivity of gypsum material, so that the formation of the first holes in the gypsum body contributes to further improving the thermal insulation properties of the gypsum body.
The foaming agent is a physical foaming agent, a chemical foaming agent or a surface active foaming agent. In this embodiment, the foaming agent is a surface active foaming agent, and specifically, the foaming agent is one or more selected from sodium dodecyl sulfate, sodium fatty alcohol-polyoxyethylene ether sulfate, rosin soap foaming agents, and vegetable protein foaming agents.
In this example, the foam is produced by introducing an aqueous solution of a blowing agent into air under mechanical action.
In the embodiment, 1.0-3.0L of foam is added to each kilogram of gypsum slurry, so that on one hand, the strength of the subsequently formed gypsum body is ensured to meet the production requirement, and on the other hand, the porosity of the first holes in the gypsum body is proper, and the thermal insulation performance of the gypsum body is further improved.
It should be noted that in other embodiments, the nanoporous material may not be placed in the gypsum slurry, but rather, the nanoporous material may be placed in the gypsum slurry after mixing with the foam.
In this embodiment, after mixing the gypsum slurry with the foam, the method for preparing a gypsum body further includes: and carrying out a casting molding process on the gypsum slurry to form a gypsum blank.
The thickness of the gypsum blank is 5 mm-300 mm, and the thickness of the gypsum blank is proper, so that the thickness of a subsequently formed gypsum body is proper, on one hand, the weight of the gypsum body is reduced, and on the other hand, the heat preservation effect of the gypsum body is enhanced.
After the gypsum blank is formed, the preparation method of the gypsum body further comprises the following steps: and curing and drying the gypsum blank to form a gypsum body, wherein a plurality of nano holes are formed in the gypsum body.
In the embodiment, the temperature for curing and drying is 5-75 ℃, the curing and drying temperature influences the condensation speed of the gypsum body, and the curing and drying temperature is proper, so that on one hand, the forming quality of the gypsum body is ensured, and cracks are prevented from being generated on the surface of the gypsum body due to overhigh temperature; on the other hand, the production and manufacturing efficiency of the gypsum body is improved.
In this embodiment, the gypsum body is used as an indoor insulation board.
The heat preservation effect of the gypsum body is related to the aperture of the nano-hole, the aperture of the nano-hole is small, the convection of air molecules in the nano-hole is inhibited, and heat is prevented from being dissipated in a mode of convection of the air molecules, so that the nano-hole can improve the heat preservation effect of the gypsum body.
The pore diameter of the nanopore is the same as that of the nanopore material. In the embodiment, the pore diameter of the nanopore is 2nm to 70nm, and the pore diameter of the nanopore is proper, so that the improvement effect of the nanopore on the heat preservation performance of the gypsum body is favorably ensured; on the other hand, the production difficulty and the production cost of the nanopore material are reduced.
In this embodiment, since the nano-holes can improve the heat preservation effect of the plaster body, the plaster body has a small thickness compared with a plaster body having only the first holes.
In the embodiment, the thickness of the plaster body is 5 mm-300 mm, so that on one hand, the plaster body is favorable for reducing the occupation of indoor space, and on the other hand, the plaster body is favorable for ensuring the heat preservation effect.
The porosity of the nano-pores in the gypsum body is 30% -80%, and the porosity of the nano-pores is proper, so that on one hand, the improvement effect of the nano-pores on the heat insulation performance of the gypsum body is ensured, and on the other hand, the strength and the bearing capacity of the gypsum body are ensured to meet the production requirements.
In this embodiment, since the gypsum slurry is mixed with the foam, the formed gypsum body further has a plurality of first holes, and the hole diameter of the first holes is larger than that of the nano-holes.
The first holes are internally stored with air, and compared with the heat conductivity coefficient of a gypsum material, the heat conductivity coefficient of the air is low, so that the heat insulation performance of the gypsum body can be further improved through the first holes.
In this embodiment, the aperture of the first hole is 2mm to 10mm, and the aperture of the first hole is appropriate, which is helpful for reducing the occurrence of convection phenomenon of air molecules in the first hole, thereby reducing heat loss caused by convection of the air molecules.
The porosity of the first holes in the gypsum body is 30-80%, on one hand, the first holes can be guaranteed to play a role in further improving the heat insulation performance of the gypsum body, and on the other hand, the gypsum body is guaranteed to have certain strength and bearing capacity so as to prolong the service life of the gypsum body.
In other embodiments, in the step of providing a gypsum slurry, the gypsum slurry further comprises an air entraining agent that generates bubbles within the gypsum slurry such that a gypsum body is formed having a plurality of second pores with a pore size larger than the pore size of the nanopores.
The aperture of the second hole is basically the same as that of the first hole.
In the case where the gypsum slurry is provided to include an air entraining agent, the process steps of the cast molding process may be performed directly after the step of providing the gypsum slurry. In addition, after the step of providing a gypsum slurry, a process step of providing a foaming agent may be performed so that the formed gypsum body has both the first and second holes.
In summary, the technical solution of the gypsum preparation method provided by the present invention includes: providing a gypsum slurry, the gypsum slurry comprising: gypsum and nanoporous materials; carrying out a casting molding process on the gypsum slurry to form a gypsum blank; and curing and drying the gypsum blank to form a gypsum body, wherein a plurality of nano holes are formed in the gypsum body. On one hand, the size and the distribution of the nano-pores in the prepared gypsum body can be adjusted by controlling the size and the distribution of the nano-pores of the added nano-pore material, so that the gypsum body which accurately meets the production requirement can be prepared conveniently, and the designability of the structure of the gypsum body is improved. On the other hand, the pore diameter of the nano-pores is small, which is beneficial to inhibiting the convection of air molecules in the nano-pores and improving the heat preservation effect of the gypsum body.
The invention also provides the gypsum body obtained by the preparation method, and the gypsum body is internally provided with a plurality of nano holes.
The nano holes are small in pore size, so that convection of air molecules in the nano holes is inhibited, heat is prevented from being dissipated in a mode of convection of the air molecules, and the heat preservation effect of the gypsum body can be improved by the nano holes.
In this embodiment, the gypsum body is used as an indoor insulation board.
In the embodiment, the thickness of the gypsum body is 5 mm-300 mm, so that on one hand, the indoor effective use area is increased, and on the other hand, the heat preservation effect of the gypsum body is enhanced.
The aperture of the nano hole is 2 nm-70 nm, so that on one hand, the improvement effect of the nano hole on the heat preservation performance of the gypsum body is favorably ensured; on the other hand, the production difficulty and the production cost of the nano-pore material are reduced, and the phenomenon that the production cost of the gypsum body is too high due to the too high production cost of the nano-pore material is avoided.
The porosity of the nano-pores in the gypsum body is 30% -80%, and the porosity of the nano-pores is proper, so that on one hand, the improvement effect of the nano-pores on the heat insulation performance of the gypsum body is ensured, and on the other hand, the strength and the bearing capacity of the gypsum body are ensured to meet the production requirements.
The gypsum body is also provided with a plurality of holes, and the aperture of each hole is larger than that of each nano-hole.
The holes are filled with air, and compared with the heat conductivity coefficient of a gypsum material, the heat conductivity coefficient of the air is low, so that the heat insulation performance of the gypsum body can be further improved through the holes.
In this embodiment, the aperture of the hole is 2mm to 10mm, and the hole has a proper aperture, which is helpful for reducing the occurrence of the convection phenomenon of the air molecules in the hole, thereby reducing the heat loss caused by the convection of the air molecules.
The porosity of the holes in the gypsum body is 30% -80%, on one hand, the holes can be guaranteed to play a role in further improving the heat insulation performance of the gypsum body, and on the other hand, the gypsum body is guaranteed to have certain strength and bearing capacity so as to prolong the service life of the gypsum body.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (13)
1. A method of preparing gypsum, comprising:
providing a gypsum slurry, the gypsum slurry comprising: gypsum and nanoporous materials;
carrying out a casting molding process on the gypsum slurry to form a gypsum blank;
and curing and drying the gypsum blank to form a gypsum body, wherein a plurality of nano holes are formed in the gypsum body.
2. The method of claim 1, wherein the gypsum body further comprises a plurality of first pores, wherein the first pores have a pore size larger than the pore size of the nanopores;
before the casting molding process is carried out, the method further comprises the following steps: providing a foaming agent, and generating foam by using an aqueous solution of the foaming agent; mixing the gypsum slurry with the foam.
3. The method of claim 1, wherein the gypsum body further comprises a plurality of second pores, wherein the second pores have a pore size larger than the pore size of the nanopores;
the gypsum slurry also includes an air entraining agent that generates bubbles within the gypsum slurry.
4. The method for producing gypsum body according to any one of claims 1 to 3, wherein the nanopores have a pore diameter of 2nm to 70 nm.
5. The method for preparing gypsum according to claim 1, wherein the nanoporous material is a silicon-based mesoporous material or a non-silicon-based mesoporous material.
6. The method of preparing gypsum according to claim 1, wherein the mass ratio of the gypsum in the gypsum slurry to the nanoporous material is 0.3 to 4.0.
7. The method of preparing gypsum according to claim 1, wherein the nanopores in the gypsum body have a porosity of 30% to 80%.
8. The method of preparing a gypsum body of claim 1, wherein the gypsum slurry further comprises one or more of a foam stabilizer, a set retarder, fly ash, and cement.
9. The method for producing gypsum according to claim 1, wherein the temperature for curing and drying is 5 ℃ to 75 ℃.
10. A gypsum body having a plurality of nanopores therein.
11. The gypsum body of claim 10, wherein said nanopores have a pore size of from 2nm to 70 nm.
12. The gypsum body of claim 10 wherein said gypsum body has a thickness of from 5mm to 300 mm.
13. The gypsum body of claim 10, further comprising a plurality of pores in said gypsum body, said pores having a pore size greater than the pore size of said nanopores.
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| CN103596736A (en) * | 2011-04-08 | 2014-02-19 | 圣-戈贝恩普拉科公司 | Method and apparatus for manufacturing gypsum products |
| CN103797054A (en) * | 2011-07-13 | 2014-05-14 | 圣戈班伊索福公司 | High-performance thermal insulation materials |
| CN103193446A (en) * | 2013-03-12 | 2013-07-10 | 北京科技大学 | Method for producing waste residue foam concrete and nanopore vacuum plate composite material |
| RU2613208C1 (en) * | 2015-12-17 | 2017-03-15 | федеральное государственное бюджетное образовательное учреждение высшего образования "Белгородский государственный технологический университет им. В.Г. Шухова" | Mixture for heat-resistant aerocrete on basis of nanostructured gypsum binded composite, method of products manufacture |
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