CN108658555B - Heat-insulating fireproof core board and preparation method thereof - Google Patents
Heat-insulating fireproof core board and preparation method thereof Download PDFInfo
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- CN108658555B CN108658555B CN201710187895.8A CN201710187895A CN108658555B CN 108658555 B CN108658555 B CN 108658555B CN 201710187895 A CN201710187895 A CN 201710187895A CN 108658555 B CN108658555 B CN 108658555B
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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
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/14—Minerals of vulcanic origin
- C04B14/18—Perlite
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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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/26—Carbonates
- C04B14/28—Carbonates of calcium
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/42—Glass
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2623—Polyvinylalcohols; Polyvinylacetates
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/48—Macromolecular compounds
- C04B41/483—Polyacrylates
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/62—Coating or impregnation with organic materials
- C04B41/63—Macromolecular compounds
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
Abstract
The invention relates to a heat-insulating fireproof core board which is prepared from the following raw materials: the gypsum, the white cement, the light calcium, the perlite, the glass fiber, the white latex and the water, wherein the weight proportion of the gypsum, the white cement, the light calcium, the perlite, the glass fiber and the white latex is 40-60 parts of the gypsum, 5-10 parts of the white cement, 10-15 parts of the light calcium, 20-30 parts of the perlite, 5-10 parts of the glass fiber and 8-10 parts of the white latex, and the amount of the water is 60-70% of the total volume of the gypsum, the white cement, the light calcium, the perlite, the glass fiber and the white latex after mixing. The fireproof core board overcomes the defects that the existing fireproof core board is high in cost, complex in process and only suitable for inner wall boards due to the fact that a large amount of chemical bonding agents are required to be added in manufacturing, and has the advantages of being free of using chemical bonding agents, low in cost, simple in preparation process, suitable for outer walls and better in comprehensive performance.
Description
Technical Field
The invention relates to a heat-insulating fireproof core board and a preparation method thereof, which are applied to the field of building boards.
Background
With the development and progress of society, a large number of new materials are applied to the field of building boards, and recently, it has become popular to replace marble with such boards. The novel board prepared by the core board made of the novel material can not only meet the requirements of consumers on marble patterns, but also play roles in heat preservation, fire prevention and the like. However, the core material still has many problems at present, and cannot meet the requirements of the public on the performance. For example, the glass fiber reinforced gypsum board of application No. 02118752.5, the class a fire-resistant core board of application No. 200910129646.9 and the class a fire-resistant composite board made of the same have the defects that a large amount of chemical bonding agents are needed to bond various raw materials without viscosity in the preparation process, so that the cost is high, the processing procedure is complex, and the popularization and the use of the novel board are influenced. In addition, the water absorption rate is higher (generally more than 10%, and the water absorption rate on the tangent plane is higher than or equal to 30%) and the weight is heavy, so that the application range is limited, and the core plate can only be used as a core plate of an inner wall plate. Therefore, it is desirable to provide a heat-insulating fireproof core board with low cost, simple processing technology, wide applicability, and better comprehensive performance (lighter weight, better fireproof performance, and less water absorption) without adding a chemical binder in the raw materials, and a preparation method thereof.
Disclosure of Invention
In order to overcome the defects that the manufacturing of the existing fireproof core board needs to add a large amount of chemical bonding agent, so that the cost is high, the process is complex, and the fireproof core board is only suitable for the inner wall board, the invention provides the heat-insulation fireproof core board which has the advantages of no need of using the chemical bonding agent, low cost, simple preparation process, suitability for the outer wall and better comprehensive performance (lighter weight, better fireproof performance and smaller water absorption).
The technical scheme of the invention is as follows:
a heat-insulating fireproof core board is prepared from the following raw materials: the gypsum, the white cement, the light calcium, the perlite, the glass fiber, the white latex and the water, wherein the weight proportion of the gypsum, the white cement, the light calcium, the perlite, the glass fiber and the white latex is 40-60 parts of the gypsum, 5-10 parts of the white cement, 10-15 parts of the light calcium, 20-30 parts of the perlite, 5-10 parts of the glass fiber and 8-10 parts of the white latex, and the amount of the water is 60-70% of the total volume of the gypsum, the white cement, the light calcium, the perlite, the glass fiber and the white latex after mixing.
Different from the existing fireproof core board, the heat-insulating fireproof core board adopts conventional raw materials, does not need to use a large amount of chemical adhesive additionally, can be prepared by directly and simply mixing the raw materials, and has the advantages of low cost and simple preparation process. In addition, the heat-insulating fireproof core board has better performance, not only can reach the fireproof A level, but also has better fireproof performance than the fireproof core board of the existing novel board, the water absorption rate is less than 5 percent (lower than the existing fireproof core board), and the weight is light. The water absorption rate of the fireproof core board of a common manufacturer is generally more than 10%, and the water absorption rate of a tangent plane is higher (generally more than or equal to 30%), so that the fireproof core board is only suitable for inner walls. The heat-insulating fireproof core board can be used as a core board of an outer wall marble-imitated board (the core board of the outer wall board has higher requirement on water absorption rate), and the application range is wider. In the raw materials that this application thermal-insulated fire prevention core adopted, the effect of each raw materials is as follows: gypsum is the main filler and serves to bind other materials together; the white cement and the light calcium can relieve the rapid solidification of gypsum, the white cement can play a role in increasing the hardness of the board, and the light calcium and the perlite can reduce the overall specific gravity of the material; the glass fiber can improve the structural strength of the plate; the white latex can play a role in emulsification and waterproof protection, and can seep out in the injection molding forming and pressing process to form a protective film on the surface of the heat-insulating fireproof core plate blank so as to improve the fireproof performance and strength of the plate and reduce the water absorption rate.
The heat-insulating fireproof core board also comprises a proper amount of acrylic emulsion.
The proper amount of the acrylic emulsion is the amount of the acrylic emulsion which can coat the surface of the heat-insulating fireproof core plate blank.
The acrylic emulsion is coated on the surface of the heat-insulating fireproof core plate blank, so that the water absorption rate of the plate can be further reduced, and the waterproof performance of the plate can be improved.
The weight proportion of the gypsum, the white cement, the light calcium carbonate, the perlite, the glass fiber and the white latex is 50 parts of the gypsum, 5 parts of the white cement, 15 parts of the light calcium carbonate, 30 parts of the perlite, 10 parts of the glass fiber and 10 parts of the white latex.
The heat-insulating fireproof core board prepared from the raw materials with the optimized proportion has better comprehensive performance in the aspects of weight, water absorption and fire resistance.
The preparation method of the heat-insulation fireproof core board comprises the following steps of sequentially carrying out:
1) primary stirring: mixing the gypsum, the white cement, the light calcium carbonate, the perlite and the glass fiber according to the weight proportion, and fully and uniformly stirring;
2) and (3) secondary stirring: adding the white latex in the weight proportion into the mixture obtained in the step 1), uniformly stirring, adding the water in the amount, and rapidly and uniformly stirring;
3) injection molding: quickly pouring the mixture obtained in the step 2) into a mould and pressing and forming the mixture by using a certain pressure to obtain a heat-insulating fireproof core plate blank;
4) and (3) drying: and naturally drying the heat-insulating fireproof core plate blank or drying the heat-insulating fireproof core plate blank.
The heat-insulating fireproof core board only needs to mix the raw materials twice, and then injection molding pressing and drying can be carried out to obtain the heat-insulating fireproof core board, so that the heat-insulating fireproof core board is low in cost and environment-friendly, and the preparation process is simple, and a large amount of popularization and use of the fireproof core board are possible.
The preparation method also comprises a waterproof treatment step which is arranged after the drying step, wherein the waterproof treatment step is to coat the acrylic emulsion on the surface of the dried heat-insulation fireproof core plate blank and carry out drying treatment.
The acrylic emulsion is coated on the surface of the heat-insulating fireproof core plate blank, so that the waterproof performance of the plate can be further improved.
In the step of waterproof treatment, before acrylic emulsion is coated, the surface is polished according to the flatness of the surface of the heat-insulation fireproof core plate blank.
After polishing, the acrylic emulsion is coated on the surface of the heat-insulation fireproof core plate blank, so that the coating effect of the acrylic emulsion can be improved, the water absorption of the plate is further reduced, and the water resistance of the plate is better.
Compared with the prior art, the method has the following advantages:
1) in the preparation process of the heat-insulating fireproof core board, a large amount of chemical adhesive does not need to be added additionally, so that the cost is greatly reduced, and the preparation process is simplified;
2) the heat-insulating fireproof core board has better comprehensive performance, has the characteristics of lighter weight, better fireproof performance and smaller water absorption, can be used as the core board of an outer wall board, and lays a foundation for the wide use of the fireproof core board.
Detailed Description
The technical solution of the present invention will be described in detail with reference to examples.
Example 1
The invention relates to a heat-insulation fireproof core board which is prepared from the following raw materials: the water-based coating comprises, by weight, 50 parts of gypsum, 5 parts of white cement, 15 parts of light calcium, 30 parts of perlite, 10 parts of glass fiber and 10 parts of white latex, wherein the water accounts for 65% of the total volume of the gypsum, the white cement, the light calcium, the perlite, the glass fiber and the white latex after mixing, and the acrylic emulsion is in a proper amount.
The preparation method of the heat-insulation fireproof core board comprises the following steps of sequentially carrying out:
1) primary stirring: mixing the gypsum, the white cement, the light calcium carbonate, the perlite and the glass fiber according to the weight proportion, and fully and uniformly stirring;
2) and (3) secondary stirring: adding the white latex in the weight proportion into the mixture obtained in the step 1), uniformly stirring, adding the water in the amount, and rapidly and uniformly stirring;
3) injection molding: quickly pouring the mixture obtained in the step 2) into a mould and pressing and forming the mixture by using a certain pressure to obtain a heat-insulating fireproof core plate blank;
4) and (3) drying: naturally drying or drying the heat-insulating fireproof core plate blank;
5) waterproof treatment: and polishing the surface according to the flatness of the surface of the dried heat-insulating fireproof core plate blank, coating the acrylic emulsion on the surface, and drying to obtain the heat-insulating fireproof core plate.
Example 2
The invention relates to a heat-insulation fireproof core board which is prepared from the following raw materials: the water-based coating comprises, by weight, 40 parts of gypsum, 10 parts of white cement, 10 parts of light calcium, 20 parts of perlite, 5 parts of glass fiber and 8 parts of white latex, wherein the water accounts for 70% of the total volume of the gypsum, the white cement, the light calcium, the perlite, the glass fiber and the white latex after mixing, and the acrylic emulsion is in a proper amount.
The preparation method of the heat-insulation fireproof core board comprises the following steps of sequentially carrying out:
1) primary stirring: mixing the gypsum, the white cement, the light calcium carbonate, the perlite and the glass fiber according to the weight proportion, and fully and uniformly stirring;
2) and (3) secondary stirring: adding the white latex in the weight proportion into the mixture obtained in the step 1), uniformly stirring, adding the water in the amount, and rapidly and uniformly stirring;
3) injection molding: quickly pouring the mixture obtained in the step 2) into a mould and pressing and forming the mixture by using a certain pressure to obtain a heat-insulating fireproof core plate blank;
4) and (3) drying: naturally drying or drying the heat-insulating fireproof core plate blank;
5) waterproof treatment: and coating the acrylic emulsion on the surface of the dried heat-insulation fireproof core plate blank, and drying to obtain the heat-insulation fireproof core plate.
Example 3
The invention relates to a heat-insulation fireproof core board which is prepared from the following raw materials: 60 parts of gypsum, 8 parts of white cement, 12 parts of light calcium, 25 parts of perlite, 8 parts of glass fiber and 9 parts of white latex, wherein the amount of the water is 60 percent of the total volume of the gypsum, the white cement, the light calcium, the perlite, the glass fiber and the white latex after being mixed.
The preparation method of the heat-insulation fireproof core board comprises the following steps of sequentially carrying out:
1) primary stirring: mixing the gypsum, the white cement, the light calcium carbonate, the perlite and the glass fiber according to the weight proportion, and fully and uniformly stirring;
2) and (3) secondary stirring: adding the white latex in the weight proportion into the mixture obtained in the step 1), uniformly stirring, adding the water in the amount, and rapidly and uniformly stirring;
3) injection molding: quickly pouring the mixture obtained in the step 2) into a mould and pressing and forming the mixture by using a certain pressure to obtain a heat-insulating fireproof core plate blank;
4) and (3) drying: and naturally drying or drying the heat-insulating fireproof core plate blank to obtain the heat-insulating fireproof core plate.
Experimental data
Therefore, the comprehensive performance of the heat-insulating fireproof core board is superior to that of the existing fireproof core board in the aspects of water absorption, weight and fire resistance, wherein the embodiment 1 is the optimal scheme.
The heat-insulating fireproof core board and the preparation method thereof according to the present invention are not limited to the above-mentioned embodiments, and any modification or replacement according to the principle of the present invention should be within the protection scope of the present invention.
Claims (6)
1. A heat-insulating fireproof core board is characterized in that: is prepared from the following raw materials: the water-based coating comprises, by weight, 40-60 parts of gypsum, 5-10 parts of white cement, 10-15 parts of light calcium, 20-30 parts of perlite, 5-10 parts of glass fiber and 8-10 parts of white latex, and the amount of the water is 60-70% of the total volume of the gypsum, the white cement, the light calcium, the perlite, the glass fiber and the white latex after mixing; the heat-insulating fireproof core board is prepared by an injection molding and pressing process.
2. The insulating fire-resistant core panel of claim 1, wherein: the heat-insulation fireproof core board is prepared from the raw materials and also comprises acrylic emulsion coated on the surface of the heat-insulation fireproof core board.
3. The insulating fire-resistant core panel of claim 2, wherein: the weight proportion of the gypsum, the white cement, the light calcium carbonate, the perlite, the glass fiber and the white latex is 50 parts of the gypsum, 5 parts of the white cement, 15 parts of the light calcium carbonate, 30 parts of the perlite, 10 parts of the glass fiber and 10 parts of the white latex.
4. The method for preparing the heat-insulating fireproof core board according to any one of claims 1 to 3, wherein: comprises the following steps which are carried out in sequence:
1) primary stirring: mixing the gypsum, the white cement, the light calcium carbonate, the perlite and the glass fiber according to the weight proportion, and fully and uniformly stirring;
2) and (3) secondary stirring: adding the white latex in the weight proportion into the mixture obtained in the step 1), uniformly stirring, adding the water in the amount, and rapidly and uniformly stirring;
3) injection molding: quickly pouring the mixture obtained in the step 2) into a mould and pressing and forming the mixture by using a certain pressure to obtain a heat-insulating fireproof core plate blank;
4) and (3) drying: and naturally drying the heat-insulating fireproof core plate blank or drying the heat-insulating fireproof core plate blank.
5. The method for preparing the heat-insulating fireproof core board according to claim 4, wherein the method comprises the following steps: the preparation method also comprises a waterproof treatment step which is arranged after the drying step, wherein the waterproof treatment step is to coat the acrylic emulsion on the surface of the dried heat-insulation fireproof core plate blank and carry out drying treatment.
6. The method for preparing the heat-insulating fireproof core board according to claim 5, wherein the method comprises the following steps: in the step of waterproof treatment, before acrylic emulsion is coated, the surface is polished according to the flatness of the surface of the heat-insulation fireproof core plate blank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710187895.8A CN108658555B (en) | 2017-03-27 | 2017-03-27 | Heat-insulating fireproof core board and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710187895.8A CN108658555B (en) | 2017-03-27 | 2017-03-27 | Heat-insulating fireproof core board and preparation method thereof |
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| CN108658555B true CN108658555B (en) | 2021-04-20 |
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| US4449336A (en) * | 1980-06-19 | 1984-05-22 | Kelly Thomas L | Fire barrier reservoir |
| CN1047667A (en) * | 1990-06-15 | 1990-12-12 | 湖南省益阳市福利防水石膏板厂 | Inorganic water-proof plaster stone ceiling |
| CN1380267A (en) * | 2002-04-29 | 2002-11-20 | 敬金中 | Glass fibre reinforced gypsum board and its making method |
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| CN105272102A (en) * | 2014-06-06 | 2016-01-27 | 宋伟滨 | Environmentally-friendly and fireproof door panel and making method thereof |
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| CN108658555A (en) | 2018-10-16 |
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