CN110713391A - Light cement insulation board for energy-saving building and preparation method - Google Patents
Light cement insulation board for energy-saving building and preparation method Download PDFInfo
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- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
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- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
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- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
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- C04B20/1055—Coating or impregnating with inorganic materials
- C04B20/107—Acids or salts thereof
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- 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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
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- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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Abstract
The invention provides a light cement insulation board for an energy-saving building and a preparation method thereof. According to the preparation method provided by the invention, the inorganic coating layer is generated in situ on the surface of the EPS foaming particles, so that the polymer coating layer is further formed, the EPS foaming particles are endowed with the characteristics of easiness in dispersion, easiness in wetting and the like, the bonding capability of the EPS foaming particles and a cement cementing material is improved, the uniformity is greatly improved, and the prepared foaming cement insulation board has the advantages of small density, low heat conductivity coefficient, high compressive strength and the like.
Description
Technical Field
The invention relates to the technical field of building heat insulation materials, in particular to a light cement heat insulation plate for an energy-saving building and a preparation method thereof.
Background
The foamed cement heat-insulating board is an inorganic heat-insulating material which is produced by a plurality of inorganic cementing materials, additives such as a modifier and a foaming agent through equipment such as a stirring system, a maintenance system, a cutting system and the like, has low heat conductivity, good heat-insulating property, high temperature resistance, aging resistance and A1-grade non-combustibility, and can be widely applied to a building outer wall heat-insulating system. The foaming cement heat-insulating board is the most ideal heat-insulating material for the existing wall heat-insulating and wall heat-insulating fireproof isolation belts, and has the advantages that: low heat conductivity coefficient, good heat preservation effect, no combustion, water resistance, strong bonding force with the wall body, high strength, no toxic and harmful radioactive substances and environmental protection.
Among foamed cement insulation boards, expandable polystyrene resin (EPS) lightweight aggregate concrete has attracted attention as a novel wall material. EPS is mainly classified into general type, high power type and flame retardancy. The foamed plastic product can be prepared by pre-foaming, curing and molding, has the advantages of light weight, low cost, low thermal conductivity, small water absorption, good electrical insulation, sound insulation, moisture resistance, simple molding process and the like, and can be widely used for packaging, heat preservation, heat insulation, building decoration and other aspects.
When the EPS foaming particles are used as light aggregate to prepare a concrete light heat-insulating material, the EPS particles are easy to float upwards in the preparation process because the density of the EPS particles is too low and the surface property difference with an inorganic cementing material is large, and the EPS particles are difficult to disperse uniformly in a system, so that the performance of the material is influenced. Therefore, the EPS foaming cement insulation board is improved by modifying the EPS foaming particles, and the EPS foaming cement insulation board is paid extensive attention.
According to literature reports, inorganic substances such as ultrafine silica fume and the like are directly added in the mixing process of key technology for preparing EPS light aggregate concrete and research progress thereof (concrete, 2009, 8: 59-62) of Zhao Xiaoyan and the like to improve the compactness of slurry after hardening and improve the interfacial adhesion between EPS particles and cement slurry, but the surface of the EPS particles is still hydrophobic and has poor effect. There is also a research on the improvement of the interfacial bonding property of polystyrene light aggregate concrete multiphase composite material (proceedings of the building engineering academy of Hebei, 2005.23 (1): 54-57) by Cistanchis, etc. it is proposed that the EPS particles are modified by PVA emulsion to change the surface of EPS particles from hydrophobic to hydrophilic so as to improve the bonding property with mortar, but the workability cannot be improved well due to the small volume weight of the particles.
In order to reduce the difference between the EPS foaming particles and the inorganic cementing material in the cement insulation board and improve the surface wettability of the EPS foaming particles, a novel cement insulation board containing modified EPS foaming particles is necessary to be provided, so that the density and the heat conductivity coefficient of the EPS cement insulation board are reduced, and the mechanical properties such as compressive strength are improved.
Disclosure of Invention
Aiming at the defects that the density of EPS particles is too low, the surface property difference with an inorganic cementing material is large, the dispersion is not uniform and the compressive strength is influenced when the concrete light heat-insulating material is prepared at present, the invention provides the light cement heat-insulating plate for the energy-saving building and the preparation method thereof, so that the prepared foamed cement heat-insulating plate has the advantages of good uniformity, small density, low heat conductivity coefficient, high compressive strength and the like.
In order to solve the problems, the invention adopts the following technical scheme:
the lightweight cement insulation board for the energy-saving building is prepared by treating EPS foaming particles by a coupling agent, then infiltrating a calcium hydroxide saturated solution, then passing a carbonate solution to obtain calcium carbonate coated modified EPS foaming particles, uniformly stirring the modified EPS foaming particles, water, an early strength agent, a water reducing agent, a dispersing agent, a polymer emulsion, Portland cement, fly ash and fibers, then pouring the mixture into a template, and then curing and demolding.
Preferably, the coupling agent is one or the combination of more than two of a silane coupling agent KH550, a silane coupling agent KH560, a silane coupling agent KH570, a silane coupling agent KH792 and a silane coupling agent DL 602;
preferably, the early strength agent is one or a combination of more than two of calcium chloride, sodium chloride and aluminum chloride;
preferably, the water reducing agent is one or a combination of more than two of a naphthalene-based high-efficiency water reducing agent, an aliphatic high-efficiency water reducing agent, an amino high-efficiency water reducing agent and a polycarboxylic acid high-performance water reducing agent;
preferably, the dispersant is one or a combination of two or more of a lignin dispersant, a polyol dispersant, a glucose dispersant and a polycarboxylic acid dispersant.
Preferably, the carbonate solution is an ammonium carbonate solution with a mass concentration of 20.
Preferably, the polymer emulsion is an acrylic emulsion with a mass concentration of 10%.
Preferably, the fibers are polypropylene fibers, wood fibers or a combination of the two.
The invention also provides a preparation method of the light cement insulation board for the energy-saving building, which comprises the following steps:
(1) fully mixing and stirring EPS (expandable polystyrene) foam particles with the particle size of 1-5mm and a coupling agent to completely wet the surfaces of the EPS foam particles, fishing out the EPS foam particles, adding the EPS foam particles into a reaction kettle, mixing the EPS foam particles with a calcium hydroxide saturated solution, pressurizing the reaction kettle to 1-2MPa to fully wet the surfaces of the EPS foam particles by the calcium hydroxide saturated solution, maintaining the pressure for 30-50min, stopping pressurizing, passing through a carbonate solution to convert calcium hydroxide on the surfaces of the EPS foam particles into calcium carbonate coated on the surfaces of the foam particles, and discharging to obtain modified EPS foam particles;
(2) firstly, mixing and stirring water, an early strength agent, a water reducing agent, a dispersing agent and polymer emulsion uniformly, then adding portland cement, fly ash and fibers, fully stirring to form uniform slurry, then adding modified EPS foaming particles, stirring uniformly at a low speed, pouring into a template, and then curing and demolding to obtain the lightweight cement insulation board for the energy-saving building.
Preferably, in the step (2), in the preparation of the cement insulation board, the mass ratio of water, the early strength agent, the water reducing agent, the dispersing agent, the polymer emulsion, the portland cement, the fly ash, the fiber and the modified EPS foaming particles is 100:1-1.5:0.8-2:1-2:3-5:90-110:20-30:5-10: 15-25.
Preferably, the rotation speed of the low-speed stirring in the step (2) is 10-20rpm, and the stirring is carried out for 2-4 min.
The interface performance of the EPS foaming particles is improved by performing infiltration treatment on the surfaces of the EPS foaming particles by using a coupling agent, then a calcium hydroxide saturated solution is better coated on the surfaces of the EPS foaming particles treated by the coupling agent by pressurizing, and then the EPS foaming particles react with a carbonate solution to generate an inorganic coating layer on the surfaces of the EPS foaming particles in situ, and the obtained calcium carbonate coating layer increases the compatibility and dispersibility of the EPS foaming particles and cement.
Furthermore, the modified EPS foaming particles are added into the cement insulation board slurry containing the polymer emulsion, the polymer emulsion is further coated on the surfaces of the modified EPS foaming particles, the interface performance of the EPS particles and cement is further obviously improved, the inorganic modified EPS foaming particles are subjected to hydrophilic modification, the problem that the affinity of a cementing material and the EPS particles is not enough is solved, the bonding capacity between the EPS particles and the cement cementing material is improved, the cohesiveness and the workability of the slurry are further obviously improved, and the uniform EPS aggregate cement insulation board is obtained.
When the existing EPS aggregate cement heat-insulating material is used, the defects of undersize EPS particle density, larger surface property difference with an inorganic cementing material, uneven dispersion and influence on compressive strength exist, and the application of the EPS aggregate cement heat-insulating material is limited. In view of the above, the invention provides a light cement insulation board for an energy-saving building and a preparation method thereof, wherein EPS foaming particles and a coupling agent are selected to be mixed and stirred, the surface of the EPS foaming particles is fished out after being completely wetted, the EPS foaming particles are added into a reaction kettle to be mixed with a calcium hydroxide saturated solution, the calcium hydroxide saturated solution is pressurized to fully wet the surface of the EPS foaming particles, then the pressurization is stopped, and a carbonate solution is passed to convert calcium hydroxide into calcium carbonate coated on the surface of the foaming particles, so that modified EPS foaming particles are obtained; mixing and stirring water, an early strength agent, a water reducing agent, a dispersing agent and polymer emulsion, adding portland cement, fly ash and fibers, stirring to form uniform slurry, adding the prepared modified EPS foaming particles, mixing, stirring uniformly at a low speed, pouring into a template, curing and demolding to obtain the cement insulation board with uniform foam pores. According to the preparation method provided by the invention, the inorganic coating layer is generated in situ on the surface of the EPS foaming particles, so that the polymer coating layer is further formed, the EPS foaming particles are endowed with the characteristics of easiness in dispersion, easiness in wetting and the like, the bonding capability of the EPS foaming particles and a cement cementing material is improved, the uniformity is greatly improved, and the prepared foaming cement insulation board has the advantages of small density, low heat conductivity coefficient, high compressive strength and the like.
The invention provides a light cement insulation board for an energy-saving building and a preparation method thereof, compared with the prior art, the light cement insulation board has the outstanding characteristics and excellent effects that:
1. according to the invention, the inorganic coating is generated on the surface of the EPS foaming particles in situ, and the calcium carbonate coating improves the dispersibility and the associativity of the EPS foaming particles and the inorganic cementing material.
2. According to the invention, the polymer coating layer is formed on the surface of the modified EPS particles through the polymer emulsion, so that the hydrophilicity is improved, and the EPS foaming particles are endowed with the characteristics of easy dispersion, easy wetting and the like, so that the bonding capability between the EPS foaming particles and a cement binding material is improved, and the uniformity is greatly improved.
3. The preparation method is simple, and the prepared foamed cement insulation board has the advantages of low density, low heat conductivity coefficient, high compressive strength and the like.
Drawings
FIG. 1: photo of the distribution of foam particles in the insulation board obtained in example 1.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments, but it should not be construed that the scope of the present invention is limited to the following examples. Various substitutions and alterations can be made by those skilled in the art and by conventional means without departing from the spirit of the method of the invention described above.
Example 1
(1) Fully mixing and stirring EPS foaming particles and a coupling agent to completely wet the surfaces of the EPS foaming particles, fishing out the EPS foaming particles, adding the EPS foaming particles into a reaction kettle, mixing the EPS foaming particles with a calcium hydroxide saturated solution, pressurizing the reaction kettle to 1.6MPa to fully wet the surfaces of the EPS foaming particles by the calcium hydroxide saturated solution, stopping pressurizing after the pressure is maintained for 38min, converting calcium hydroxide on the surfaces of the EPS foaming particles into calcium carbonate coated on the surfaces of the foaming particles in a percarbonate solution, and discharging to obtain modified EPS foaming particles; the coupling agent is a silane coupling agent KH 550; the carbonate solution is an ammonium carbonate solution with the mass concentration of 20%;
(2) firstly, mixing and stirring water, an early strength agent, a water reducing agent, a dispersing agent and polymer emulsion uniformly, then adding portland cement, fly ash and fibers, fully stirring to form uniform slurry, then adding modified EPS foaming particles, stirring uniformly at a low speed, pouring into a template, and then curing and demolding to obtain the lightweight cement insulation board for the energy-saving building; the early strength agent is calcium chloride; the water reducing agent is a naphthalene-based high-efficiency water reducing agent; the dispersant is lignin dispersant; the polymer emulsion is acrylic emulsion; the fiber is polypropylene fiber; in the preparation of the cement insulation board, the mass ratio of water, the early strength agent, the water reducing agent, the dispersing agent, the polymer emulsion, the silicate cement, the fly ash, the fiber and the modified EPS foaming particles is 100:1.3:1.5:1.6:4.5:108:26:7: 19; the rotation speed of the low-speed stirring is 16rpm, and the stirring is carried out for 3 min.
The test method comprises the following steps:
the cement insulation board prepared and obtained in the embodiment is subjected to performance test, and the dispersion distribution condition of foam on the section of the cement insulation board is observed by adopting an electron microscope at first, and as shown in the attached drawing 1, foam particles are uniformly distributed in a board.
Then, testing the density of the cement insulation board according to JG158-2004 standard to obtain a result shown in Table 1;
performing a thermal test on the cement insulation board prepared in the embodiment, making the cement insulation board prepared in the embodiment into a standard test piece according to the GB/T10294-;
the cement insulation board prepared in the embodiment is subjected to mechanical property test, the test is carried out according to GB/T5486.2-2001 and JG158-2004 standards, the cement insulation board prepared in the embodiment is made into a standard test piece, a microcomputer-controlled electro-hydraulic servo pressure tester is used for loading, the compressive strength is tested, and the obtained results are shown in Table 1.
Comparative example 1
Compared with the example 1, the cement insulation board prepared by the method of the example 1 is tested without coating calcium carbonate on EPS foaming particles, and the test results are shown in the table 1.
Example 2
(1) Fully mixing and stirring EPS foaming particles and a coupling agent to completely wet the surfaces of the EPS foaming particles, fishing out the EPS foaming particles, adding the EPS foaming particles into a reaction kettle, mixing the EPS foaming particles with a calcium hydroxide saturated solution, pressurizing the reaction kettle to 1MPa to fully wet the surfaces of the EPS foaming particles by the calcium hydroxide saturated solution, stopping pressurizing after the pressure is maintained for 30min, passing through a carbonate solution to convert calcium hydroxide on the surfaces of the EPS foaming particles into calcium carbonate coated on the surfaces of the foaming particles, and discharging to obtain modified EPS foaming particles; the coupling agent is a silane coupling agent KH 560; the carbonate solution is an ammonium carbonate solution with the mass concentration of 20%;
(2) firstly, mixing and stirring water, an early strength agent, a water reducing agent, a dispersing agent and polymer emulsion uniformly, then adding portland cement, fly ash and fibers, fully stirring to form uniform slurry, then adding modified EPS foaming particles, stirring uniformly at a low speed, pouring into a template, and then curing and demolding to obtain the lightweight cement insulation board for the energy-saving building; the early strength agent is sodium chloride; the water reducing agent is an aliphatic high-efficiency water reducing agent; the dispersant is a polyol dispersant; the polymer emulsion is acrylic emulsion; the fiber is polypropylene fiber; in the preparation of the cement insulation board, the mass ratio of water, the early strength agent, the water reducing agent, the dispersing agent, the polymer emulsion, the silicate cement, the fly ash, the fiber and the modified EPS foaming particles is 100:1:0.8:1:3:90:20:5: 15; the rotation speed of the low-speed stirring is 10rpm, and the stirring is carried out for 4 min.
The test was carried out by the method of example 1, and the test results are shown in Table 1.
Example 3
(1) Fully mixing and stirring EPS foaming particles and a coupling agent to completely wet the surfaces of the EPS foaming particles, fishing out the EPS foaming particles, adding the EPS foaming particles into a reaction kettle, mixing the EPS foaming particles with a calcium hydroxide saturated solution, pressurizing the reaction kettle to 2MPa to fully wet the surfaces of the EPS foaming particles by the calcium hydroxide saturated solution, stopping pressurizing after the pressure is maintained for 50min, reacting the EPS foaming particles with a percarbonate solution for 60min to convert calcium hydroxide on the surfaces of the EPS foaming particles into calcium carbonate coated on the surfaces of the foaming particles, and discharging to obtain modified EPS foaming particles; the coupling agent is a silane coupling agent KH 570; the carbonate solution is an ammonium carbonate solution with the mass concentration of 20%;
(2) firstly, mixing and stirring water, an early strength agent, a water reducing agent, a dispersing agent and polymer emulsion uniformly, then adding portland cement, fly ash and fibers, fully stirring to form uniform slurry, then adding modified EPS foaming particles, stirring uniformly at a low speed, pouring into a template, and then curing and demolding to obtain the lightweight cement insulation board for the energy-saving building; the early strength agent is aluminum chloride; the water reducing agent is an amino high-efficiency water reducing agent; the dispersant is glucose dispersant; the polymer emulsion is acrylic emulsion; the fiber is polypropylene fiber; in the preparation of the cement insulation board, the mass ratio of water, the early strength agent, the water reducing agent, the dispersing agent, the polymer emulsion, the silicate cement, the fly ash, the fiber and the modified EPS foaming particles is 100: 1.5: 2: 2: 5: 110: 30: 10: 25; the rotation speed of the low-speed stirring is 20rpm, and the stirring is carried out for 2 min.
The test was carried out by the method of example 1, and the test results are shown in Table 1.
Example 4
(1) Fully mixing and stirring EPS foaming particles and a coupling agent to completely wet the surfaces of the EPS foaming particles, fishing out the EPS foaming particles, adding the EPS foaming particles into a reaction kettle, mixing the EPS foaming particles with a calcium hydroxide saturated solution, pressurizing the reaction kettle to 1.5MPa to fully wet the surfaces of the EPS foaming particles by the calcium hydroxide saturated solution, stopping pressurizing after the pressure is maintained for 40min, fishing out the EPS foaming particles after passing through a carbonate solution to convert calcium hydroxide on the surfaces of the EPS foaming particles into calcium carbonate coated on the surfaces of the foaming particles, and discharging to obtain modified EPS foaming particles; the coupling agent is a silane coupling agent KH 792; the carbonate solution is an ammonium carbonate solution with the mass concentration of 20%;
(2) firstly, mixing and stirring water, an early strength agent, a water reducing agent, a dispersing agent and polymer emulsion uniformly, then adding portland cement, fly ash and fibers, fully stirring to form uniform slurry, then adding modified EPS foaming particles, stirring uniformly at a low speed, pouring into a template, and then curing and demolding to obtain the lightweight cement insulation board for the energy-saving building; the early strength agent is calcium chloride; the water reducing agent is a polycarboxylic acid high-performance water reducing agent; the dispersant is a polycarboxylic acid dispersant; the polymer emulsion is acrylic emulsion; the fiber is polypropylene fiber; in the preparation of the cement insulation board, the mass ratio of water, the early strength agent, the water reducing agent, the dispersing agent, the polymer emulsion, the silicate cement, the fly ash, the fiber and the modified EPS foaming particles is 100:1.2:1.6:1.5:4:100:25:8: 20; the rotation speed of the low-speed stirring is 15rpm, and the stirring is carried out for 3 min.
The test was carried out by the method of example 1, and the test results are shown in Table 1.
Table 1:
Claims (8)
1. the lightweight cement insulation board for the energy-saving building is characterized in that EPS foaming particles are firstly treated by a coupling agent, then soaked in a calcium hydroxide saturated solution, and then subjected to carbonate solution to obtain calcium carbonate coated modified EPS foaming particles, and then the modified EPS foaming particles are uniformly stirred with water, an early strength agent, a water reducing agent, a dispersing agent, a polymer emulsion, Portland cement, fly ash and fibers, poured into a template, and then subjected to curing and demolding to obtain the lightweight cement insulation board.
2. The lightweight cement insulation board for energy-saving buildings according to claim 1, wherein the coupling agent is one or a combination of two or more of silane coupling agent KH550, silane coupling agent KH560, silane coupling agent KH570, silane coupling agent KH792 and silane coupling agent DL602, the early strength agent is one or a combination of two or more of calcium chloride, sodium chloride and aluminum chloride, the water reducing agent is one or a combination of two or more of naphthalene-based superplasticizer, aliphatic superplasticizer, amino superplasticizer and polycarboxylic acid high-performance water reducing agent, and the dispersing agent is one or a combination of two or more of lignin-based dispersing agent, polyol-based dispersing agent, glucose-based dispersing agent and polycarboxylic acid-based dispersing agent.
3. The energy-saving light cement heat-insulation board for buildings according to claim 1, wherein the carbonate solution is an ammonium carbonate solution with a mass concentration of 20%.
4. The light cement insulation board for the energy-saving building as recited in claim 1, wherein the polymer emulsion is an acrylic emulsion with a mass concentration of 10%.
5. The lightweight cement insulation board for energy-saving buildings according to claim 1, wherein the fiber is one or a combination of polypropylene fiber and wood fiber.
6. The preparation method of the light cement insulation board for the energy-saving building as claimed in any one of claims 1 to 5, characterized in that the specific preparation method is as follows:
(1) fully mixing and stirring EPS (expandable polystyrene) foam particles with the particle size of 1-5mm and a coupling agent to completely wet the surfaces of the EPS foam particles, fishing out the EPS foam particles, adding the EPS foam particles into a reaction kettle, mixing the EPS foam particles with a calcium hydroxide saturated solution, pressurizing the reaction kettle to 1-2MPa to fully wet the surfaces of the EPS foam particles by the calcium hydroxide saturated solution, maintaining the pressure for 30-50min, stopping pressurizing, fishing out the EPS foam particles, passing through a carbonate solution to convert calcium hydroxide on the surfaces of the EPS foam particles into calcium carbonate coated on the surfaces of the foam particles, and discharging to obtain modified EPS foam particles;
(2) firstly, mixing and stirring water, an early strength agent, a water reducing agent, a dispersing agent and polymer emulsion uniformly, then adding portland cement, fly ash and fibers, fully stirring to form uniform slurry, then adding modified EPS foaming particles, stirring uniformly at a low speed, pouring into a template, and then curing and demolding to obtain the lightweight cement insulation board for the energy-saving building.
7. The preparation method of the light cement insulation board for the energy-saving building according to claim 6 is characterized in that in the preparation of the cement insulation board in the step (2), the mass ratio of water, the early strength agent, the water reducing agent, the dispersing agent, the polymer emulsion, the portland cement, the fly ash, the fiber and the modified EPS foaming particles is 100:1-1.5:0.8-2:1-2:3-5:90-110:20-30:5-10: 15-25.
8. The preparation method of the light cement insulation board for the energy-saving building according to claim 6, wherein the rotation speed of the low-speed stirring in the step (2) is 10-20rpm, and the stirring is performed for 2-4 min.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN112919515A (en) * | 2021-03-15 | 2021-06-08 | 神华准能资源综合开发有限公司 | Method for preparing alumina hollow microspheres from fly ash |
| CN113183303A (en) * | 2021-05-10 | 2021-07-30 | 天津中冶团泊湖置业有限公司 | Method for preparing assembled PC external wall panel by using thin stone |
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| CN114671647A (en) * | 2022-02-23 | 2022-06-28 | 安徽三棵树涂料有限公司 | Composite polystyrene board and preparation method thereof |
| CN115217228A (en) * | 2022-08-22 | 2022-10-21 | 江苏尼高科技有限公司 | Reduce heat preservation structure of outer wall external insulation system thickness |
| CN117865618A (en) * | 2024-01-23 | 2024-04-12 | 海南夏谊科技有限责任公司 | Light foamed cement partition board for building and production method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112250474A (en) * | 2020-10-15 | 2021-01-22 | 新化县东泰特种耐火材料有限公司 | Refractory material and preparation method thereof |
| CN112919515A (en) * | 2021-03-15 | 2021-06-08 | 神华准能资源综合开发有限公司 | Method for preparing alumina hollow microspheres from fly ash |
| CN113183303A (en) * | 2021-05-10 | 2021-07-30 | 天津中冶团泊湖置业有限公司 | Method for preparing assembled PC external wall panel by using thin stone |
| CN113444279A (en) * | 2021-06-08 | 2021-09-28 | 江阴市昌佳泡塑有限公司 | Coated modified EPS foam product and preparation method thereof |
| CN114105569A (en) * | 2021-12-14 | 2022-03-01 | 中国建筑科学研究院有限公司 | Method for preparing AEPS insulation board by utilizing EVA emulsion modified polyphenyl particles |
| CN114315412A (en) * | 2022-01-27 | 2022-04-12 | 西安建筑科技大学 | Modified EPS particles, modification method thereof, concrete containing modified EPS particles and preparation method thereof |
| CN114315412B (en) * | 2022-01-27 | 2022-10-11 | 西安建筑科技大学 | Modified EPS particles, modification method thereof, concrete containing modified EPS particles and preparation method thereof |
| US11732103B2 (en) | 2022-01-27 | 2023-08-22 | Xi'an University Of Architecture And Technology | Modified expanded polystyrene particles, modification method thereof, concrete containing modified expanded polystyrene |
| CN114671647A (en) * | 2022-02-23 | 2022-06-28 | 安徽三棵树涂料有限公司 | Composite polystyrene board and preparation method thereof |
| CN115217228A (en) * | 2022-08-22 | 2022-10-21 | 江苏尼高科技有限公司 | Reduce heat preservation structure of outer wall external insulation system thickness |
| CN117865618A (en) * | 2024-01-23 | 2024-04-12 | 海南夏谊科技有限责任公司 | Light foamed cement partition board for building and production method thereof |
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