CN113277828A - Mineral board and preparation method thereof - Google Patents
Mineral board and preparation method thereof Download PDFInfo
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- CN113277828A CN113277828A CN202110625796.XA CN202110625796A CN113277828A CN 113277828 A CN113277828 A CN 113277828A CN 202110625796 A CN202110625796 A CN 202110625796A CN 113277828 A CN113277828 A CN 113277828A
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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
- C04B28/30—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 magnesium cements or similar cements
- C04B28/32—Magnesium oxychloride cements, e.g. Sorel cement
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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
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating materials
-
- 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
-
- 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
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a mineral board and a preparation method thereof, wherein the board is formed by pressing expanded vermiculite, magnesium oxide, magnesium chloride, tourmaline powder, kaolin, bentonite, aluminum silicate, expanded vitrified pitchstone, a sound insulation material, modified water glass and a curing agent; the sound insulation material comprises, by weight, 15-65 parts of expanded vermiculite, 5-30 parts of magnesium oxide, 5-30 parts of magnesium chloride, 15-40 parts of tourmaline powder, 5-10 parts of kaolin, 2-10 parts of bentonite, 5-15 parts of aluminum silicate, 2-10 parts of expanded vitrified pitchstone, 5-15 parts of sound insulation material, 10-40 parts of modified water glass and 5-20 parts of curing agent; tourmaline powder and expanded vitrified pitchstone are filled between the expanded vermiculite. The vermiculite plate has high fire resistance up to 1350 ℃, combustion performance up to A1 level, excellent fireproof performance and good sound insulation effect, and the maximum sound insulation amount of the 50mm thick vermiculite plate can reach 47 decibels.
Description
Technical Field
The invention relates to the field of building material plates, in particular to a mineral plate and a preparation method thereof.
Background
The existing building material type board has cement, white cement, gypsum, wood and the like, and the materials have more or less defects, such as cement and gypsum, which have large specific gravity and are easy to break, so that the shape cannot be too thin, the cost for manufacturing the shape by using the wood is too high, the fireproof performance cannot be realized, and the sound insulation effect is poor. Along with the improvement of living standard of people and the requirement on living quality, higher requirements are naturally provided for the plate, the plate is required to have good fireproof performance, and the plate is required to have good sound insulation effect, so that a building material plate with higher performance and quality is needed to be designed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a mineral plate and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
on one hand, the mineral board is formed by pressing expanded vermiculite, magnesium oxide, magnesium chloride, tourmaline powder, kaolin, bentonite, aluminum silicate, expanded vitrified pitchstone, a sound insulation material, modified water glass and a curing agent; the sound insulation material comprises, by weight, 15-65 parts of expanded vermiculite, 5-30 parts of magnesium oxide, 5-30 parts of magnesium chloride, 15-40 parts of tourmaline powder, 5-10 parts of kaolin, 2-10 parts of bentonite, 5-15 parts of aluminum silicate, 2-10 parts of expanded vitrified pitchstone, 5-15 parts of sound insulation material, 10-40 parts of modified water glass and 5-20 parts of curing agent; the tourmaline powder and the expanded vitrified pitchstone are filled between the expanded vermiculite.
The further technical scheme is as follows: the particle size of the expanded vermiculite is 1-8 mm.
The further technical scheme is as follows: the sound insulation material is made of one or more of silicate, magnesium aluminum silicate, fly ash floating beads and polyphenyl particles.
The further technical scheme is as follows: the baume degree of the modified water glass is 20-50 DEG Be, and the modulus is 1-4.
The further technical scheme is as follows: the modified water glass is modified by a silane coupling agent KH-560.
The further technical scheme is as follows: the curing agent is prepared from one or more of glyoxal, ethyl acetate, glycerol triacetate, ethyl orthosilicate, aluminum dihydrogen phosphate, aluminum oxide, calcium oxide and sodium fluosilicate.
In another aspect, a method of making a mineral panel as described above, the method comprising:
crushing tourmaline into tourmaline powder with the size of 300-1200 meshes;
crushing vermiculite into particles of 1-8 mm, and heating at 700-1500 ℃ to expand the particles;
adding expanded vermiculite, tourmaline powder, magnesium oxide, magnesium chloride, kaolin, bentonite, aluminum silicate, expanded vitrified pitchstone, sound insulation material, modified water glass and curing agent into a container in proportion and stirring to form a mixture;
uniformly stirring the mixture, placing the mixture into a mold, pressing the mixture at the temperature of 80-350 ℃, and drying the mixture for a period of time to form a plate;
and (5) edging and polishing the dried and formed plate.
The further technical scheme is as follows: in the step of crushing the vermiculite into particles of 1-8 mm, heating the particles at 700-1500 ℃ to expand the particles, wherein the interlayer distance of the vermiculite expands to 4-20 times.
The further technical scheme is as follows: the method comprises the steps of uniformly stirring the mixture, then placing the mixture into a mold, pressing and drying the mixture for a period of time under the condition of constant temperature or natural temperature to form the plate, wherein in the step of forming the plate, the pressure is 100-400 kg/cw, the drying time is 2-4 h, and the thickness of the pressed plate is kept at 6-50 mm.
The further technical scheme is as follows: in the step of adding the expanded vermiculite, the tourmaline powder, the magnesium oxide, the magnesium chloride, the kaolin, the bentonite, the aluminum silicate, the expanded vitrified pitchstone, the sound insulation material, the modified water glass and the curing agent into a container in proportion and stirring to form the mixture, the stirring time of the mixture is 5-20 min.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, expanded vermiculite is used as a main raw material, expanded vitrified pitchstone, magnesium oxide, magnesium chloride, tourmaline powder, kaolin, bentonite, aluminum silicate and a special sound insulation material are added, modified water glass is used as an inorganic adhesive and is matched with a special curing agent for use, and the modified water glass can form super-strong adhesive force with the expanded vermiculite and the sound insulation material at normal temperature and normal pressure, so that the plate has high strength, good water resistance, heat resistance and weather resistance, does not whiten after being placed outdoors for a long time, and is resistant to water soaking and deformation; the added sound insulation material enables the plate to have good sound insulation effect, and the maximum sound insulation amount of the 50mm thick vermiculite plate can reach 47 decibels; after the expanded vitrified pitchstone is added into the plate, the specific gravity of the plate can be obviously reduced, so that the plate has larger porosity, and the sound absorption, sound insulation, heat preservation and heat insulation effects of the plate are further greatly improved; meanwhile, the strength of the plate can be improved by matching with a high-function inorganic binder.
In addition, the plate has high refractoriness which can reach above 1350 ℃ at most, the combustion performance reaches A1 grade, and the plate has excellent fireproof performance, and the existing plate in the market can generate the defects of plate cracking, deformation and the like in the high-temperature environment, but the plate of the invention does not crack or deform, the size of the product shrinks within 1mm, and the physical and mechanical properties of the product are greatly improved.
In addition, the plate is produced by adopting inorganic raw materials, and does not release any harmful substance after being heated to 1350 ℃ at high temperature, so that the absolute green environmental protection characteristic of the plate is ensured, the plate does not release any harmful substance even in an open fire state, the waste materials generated in the using process can be directly recycled or subjected to landfill treatment, the environment is not polluted, the effect of improving the soil environment can be realized, and the environment-friendly plate accords with the current environment-friendly concepts of low carbon, environmental protection and material recycling.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more apparent, the following detailed description will be given of preferred embodiments.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to specific embodiments of the present invention, and it should be understood that the described embodiments are a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
Example one
The plate comprises the following raw materials: 30 parts of expanded vermiculite, 5 parts of magnesium oxide, 5 parts of magnesium chloride, 15 parts of tourmaline powder, 5 parts of kaolin, 5 parts of bentonite, 5 parts of aluminum silicate, 5 parts of expanded vitrified pitchstone, 5 parts of sound insulation material, 15 parts of modified water glass and 5 parts of curing agent; wherein the particle size of the expanded vermiculite is 8 mm; the sound insulation material is formed by mixing silicate, magnesium aluminum silicate, fly ash floating beads and polyphenyl particles; the curing agent is prepared by mixing glyoxal, ethyl acetate, glycerol triacetate, tetraethoxysilane, aluminum dihydrogen phosphate, aluminum oxide, calcium oxide and sodium fluosilicate.
Preparing modified water glass: 100kg of water glass is weighed and poured into a heating reflux device, then 8kg of KH-560 organosilicon coupling agent is added, the mixture is stirred and heated to 120 ℃, the temperature is kept for 80min, then the heating is stopped, and the modified water glass can be obtained after cooling.
The preparation method of the mineral plate comprises the following steps:
s1, crushing the tourmaline into tourmaline powder with 1200 meshes;
s2, crushing vermiculite into 8mm particles, and heating at 1100 ℃ to expand the particles;
s3, adding expanded vermiculite, tourmaline powder, magnesium oxide, magnesium chloride, kaolin, bentonite, aluminum silicate, expanded vitrified pitchstone, sound insulation material, modified water glass and curing agent into stirring equipment in proportion, and stirring to form mixed slurry; the stirring time is 10min, and the situation of agglomeration or unstirred materials can not occur.
S4, pouring the slurry into a plate mold, trowelling the slurry by using wood purlin or aluminum square tube, pressing and drying for a period of time at the temperature of 100 ℃ to form a plate; the pressure was 400kg/cw, the drying time was 2 hours, and the thickness of the press-formed plate was maintained at 20 mm.
And S5, edging and polishing the cured plate to obtain a finished plate.
Example two
The plate comprises the following raw materials: 40 parts of expanded vermiculite, 5 parts of magnesium oxide, 5 parts of magnesium chloride, 15 parts of tourmaline powder, 5 parts of kaolin, 2 parts of bentonite, 6 parts of aluminum silicate, 2 parts of expanded vitrified pitchstone, 5 parts of sound insulation material, 10 parts of modified water glass and 5 parts of curing agent; wherein the particle size of the expanded vermiculite is 6 mm; the sound insulation material is formed by mixing silicate, magnesium aluminum silicate, fly ash floating beads and polyphenyl particles; the curing agent is prepared by mixing glyoxal, ethyl acetate, glycerol triacetate, tetraethoxysilane, aluminum dihydrogen phosphate, aluminum oxide, calcium oxide and sodium fluosilicate.
Preparing modified water glass: 100kg of water glass is weighed and poured into a heating reflux device, then 8kg of KH-560 organosilicon coupling agent is added, the mixture is stirred and heated to 120 ℃, the temperature is kept for 80min, then the heating is stopped, and the modified water glass can be obtained after cooling.
The preparation method of the mineral plate comprises the following steps:
s1, crushing tourmaline into tourmaline powder with 800 meshes;
s2, crushing vermiculite into 6mm particles, and heating at 800 ℃ to expand the particles;
s3, adding expanded vermiculite, tourmaline powder, magnesium oxide, magnesium chloride, kaolin, bentonite, aluminum silicate, expanded vitrified pitchstone, sound insulation material, modified water glass and curing agent into stirring equipment in proportion, and stirring to form mixed slurry; the stirring time is 10min, and the situation of agglomeration or unstirred materials can not occur.
S4, pouring the slurry into a plate mold, trowelling the slurry by using wood purlin or aluminum square tube, pressing and drying for a period of time at the temperature of 200 ℃ to form a plate; the pressure was 400kg/cw, the drying time was 3 hours, and the thickness of the press-formed plate was maintained at 30 mm.
And S5, edging and polishing the cured plate to obtain a finished plate.
EXAMPLE III
The plate comprises the following raw materials: 35 parts of expanded vermiculite, 5 parts of magnesium oxide, 5 parts of magnesium chloride, 15 parts of tourmaline powder, 5 parts of kaolin, 2 parts of bentonite, 6 parts of aluminum silicate, 2 parts of expanded vitrified pitchstone, 10 parts of sound insulation material, 10 parts of modified water glass and 5 parts of curing agent; wherein the particle size of the expanded vermiculite is 6 mm; the sound insulation material is formed by mixing silicate, magnesium aluminum silicate, fly ash floating beads and polyphenyl particles; the curing agent is prepared by mixing glyoxal, ethyl acetate, glycerol triacetate, tetraethoxysilane, aluminum dihydrogen phosphate, aluminum oxide, calcium oxide and sodium fluosilicate.
Preparing modified water glass: 100kg of water glass is weighed and poured into a heating reflux device, then 8kg of KH-560 organosilicon coupling agent is added, the mixture is stirred and heated to 120 ℃, the temperature is kept for 80min, then the heating is stopped, and the modified water glass can be obtained after cooling.
The preparation method of the mineral plate comprises the following steps:
s1, crushing the tourmaline into tourmaline powder with 1200 meshes;
s2, crushing vermiculite into 8mm particles, and heating at 1100 ℃ to expand the particles;
s3, adding expanded vermiculite, tourmaline powder, magnesium oxide, magnesium chloride, kaolin, bentonite, aluminum silicate, expanded vitrified pitchstone, sound insulation material, modified water glass and curing agent into stirring equipment in proportion, and stirring to form mixed slurry; the stirring time is 10min, and the situation of agglomeration or unstirred materials can not occur.
S4, pouring the slurry into a plate mold, trowelling the slurry by using wood purlin or aluminum square tube, pressing and drying for a period of time at the temperature of 150 ℃ to form a plate; the pressure was 400kg/cw, the drying time was 2.5 hours, and the thickness of the press-formed plate was maintained at 25 mm.
And S5, edging and polishing the cured plate to obtain a finished plate.
Example four
The plate comprises the following raw materials: 30 parts of expanded vermiculite, 5 parts of magnesium oxide, 5 parts of magnesium chloride, 15 parts of tourmaline powder, 5 parts of kaolin, 2 parts of bentonite, 6 parts of aluminum silicate, 2 parts of expanded vitrified pitchstone, 10 parts of sound insulation material, 15 parts of modified water glass and 5 parts of curing agent; wherein the particle size of the expanded vermiculite is 8 mm; the sound insulation material is formed by mixing silicate, magnesium aluminum silicate, fly ash floating beads and polyphenyl particles; the curing agent is prepared by mixing glyoxal, ethyl acetate, glycerol triacetate, tetraethoxysilane, aluminum dihydrogen phosphate, aluminum oxide, calcium oxide and sodium fluosilicate.
Preparing modified water glass: 100kg of water glass is weighed and poured into a heating reflux device, then 8kg of KH-560 organosilicon coupling agent is added, the mixture is stirred and heated to 120 ℃, the temperature is kept for 80min, then the heating is stopped, and the modified water glass can be obtained after cooling.
The preparation method of the mineral plate comprises the following steps:
s1, crushing tourmaline into tourmaline powder with 800 meshes;
s2, crushing vermiculite into 8mm particles, and heating at 1100 ℃ to expand the particles;
s3, adding expanded vermiculite, tourmaline powder, magnesium oxide, magnesium chloride, kaolin, bentonite, aluminum silicate, expanded vitrified pitchstone, sound insulation material, modified water glass and curing agent into stirring equipment in proportion, and stirring to form mixed slurry; the stirring time is 10min, and the situation of agglomeration or unstirred materials can not occur.
S4, pouring the slurry into a plate mold, trowelling the slurry by using wood purlin or aluminum square tube, pressing and drying for a period of time at the temperature of 200 ℃ to form a plate; the pressure was 400kg/cw, the drying time was 4 hours, and the thickness of the press-formed plate was maintained at 50 mm.
And S5, edging and polishing the cured plate to obtain a finished plate.
Through tests, the performances of the plate of the invention are shown in table 1:
TABLE 1
As can be seen from table 1, the panels of examples 1 to 4 all had excellent sound insulation and fire resistance, and had good compressive strength.
To sum up: according to the invention, expanded vermiculite is used as a main raw material, expanded vitrified pitchstone, magnesium oxide, magnesium chloride, tourmaline powder, kaolin, bentonite, aluminum silicate and a special sound insulation material are added, modified water glass is used as an inorganic adhesive and is matched with a special curing agent for use, and the modified water glass can form super-strong adhesive force with the expanded vermiculite and the sound insulation material at normal temperature and normal pressure, so that the plate has high strength, good water resistance, heat resistance and weather resistance, does not whiten after being placed outdoors for a long time, and is resistant to water soaking and deformation; the added sound insulation material enables the plate to have good sound insulation effect, and the maximum sound insulation amount of the 50mm thick vermiculite plate can reach 47 decibels; after the expanded vitrified pitchstone is added into the plate, the specific gravity of the plate can be obviously reduced, so that the plate has larger porosity, and the sound absorption, sound insulation, heat preservation and heat insulation effects of the plate are further greatly improved; meanwhile, the strength of the plate can be improved by matching with a high-function inorganic binder.
In addition, the plate has high refractoriness which can reach above 1350 ℃ at most, the combustion performance reaches A1 grade, and the plate has excellent fireproof performance, and the existing plate in the market can generate the defects of plate cracking, deformation and the like in the high-temperature environment, but the plate of the invention does not crack or deform, the size of the product shrinks within 1mm, and the physical and mechanical properties of the product are greatly improved.
In addition, the plate is produced by adopting inorganic raw materials, and does not release any harmful substance after being heated to 1350 ℃ at high temperature, so that the absolute green environmental protection characteristic of the plate is ensured, the plate does not release any harmful substance even in an open fire state, the waste materials generated in the using process can be directly recycled or subjected to landfill treatment, the environment is not polluted, the effect of improving the soil environment can be realized, and the environment-friendly plate accords with the current environment-friendly concepts of low carbon, environmental protection and material recycling.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A mineral plate is characterized in that the mineral plate is formed by pressing expanded vermiculite, magnesium oxide, magnesium chloride, tourmaline powder, kaolin, bentonite, aluminum silicate, expanded vitrified pitchstone, a sound insulation material, modified water glass and a curing agent; the sound insulation material comprises, by weight, 15-65 parts of expanded vermiculite, 5-30 parts of magnesium oxide, 5-30 parts of magnesium chloride, 15-40 parts of tourmaline powder, 5-10 parts of kaolin, 2-10 parts of bentonite, 5-15 parts of aluminum silicate, 2-10 parts of expanded vitrified pitchstone, 5-15 parts of sound insulation material, 10-40 parts of modified water glass and 5-20 parts of curing agent; the tourmaline powder and the expanded vitrified pitchstone are filled between the expanded vermiculite.
2. The mineral board according to claim 1, wherein the particle size of the expanded vermiculite is 1-8 mm.
3. The mineral board as claimed in claim 1, wherein the sound insulation material is made of one or more of silicate, magnesium aluminum silicate, fly ash floating beads and polyphenyl particles.
4. The mineral plate as claimed in claim 1, wherein the modified water glass has a baume degree of 20 to 50 ° baue and a modulus of 1 to 4.
5. The mineral plate as claimed in claim 4, wherein the modified water glass is modified with silane coupling agent KH-560.
6. The mineral plate according to claim 1, wherein the curing agent is one or more of glyoxal, ethyl acetate, triacetin, tetraethoxysilane, aluminum dihydrogen phosphate, alumina, calcium oxide, and sodium fluosilicate.
7. A method of making a mineral board as defined in any one of claims 1 to 6, said method comprising:
crushing tourmaline into tourmaline powder with the size of 300-1200 meshes;
crushing vermiculite into particles of 1-8 mm, and heating at 700-1500 ℃ to expand the particles;
adding expanded vermiculite, tourmaline powder, magnesium oxide, magnesium chloride, kaolin, bentonite, aluminum silicate, expanded vitrified pitchstone, sound insulation material, modified water glass and curing agent into a container in proportion and stirring to form a mixture;
uniformly stirring the mixture, placing the mixture into a mold, pressing the mixture at the temperature of 80-350 ℃, and drying the mixture for a period of time to form a plate;
and (5) edging and polishing the dried and formed plate.
8. The method of producing a mineral board according to claim 7, wherein the step of crushing vermiculite into particles of 1 to 8mm and expanding the particles by heating at a temperature of 700 to 1500 ℃, the distance between layers of vermiculite is expanded to 4 to 20 times.
9. The method for manufacturing a mineral board according to claim 7, wherein the step of forming the board by uniformly stirring the mixture, pressing the mixture in a mold at a constant temperature or a natural temperature for a period of time, wherein the pressure is 100 to 400kg/cw, the drying time is 2 to 4 hours, and the thickness of the press-formed board is maintained at 6 to 50 mm.
10. The method of manufacturing a mineral board according to claim 7, wherein the step of mixing the mixture is performed by adding expanded vermiculite, tourmaline powder, magnesium oxide, magnesium chloride, kaolin, bentonite, aluminum silicate, expanded vitrified pitchstone, a sound insulation material, modified water glass, and a curing agent in a container in a ratio for 5 to 20 min.
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| CN114804729A (en) * | 2022-05-17 | 2022-07-29 | 石家庄易辰防火保温材料有限公司 | Steel construction fire protection shield that contains silica aerogel |
| CN114804729B (en) * | 2022-05-17 | 2023-03-14 | 石家庄易辰防火保温材料有限公司 | Steel construction fire protection shield that contains silica aerogel |
| CN116119982A (en) * | 2022-11-03 | 2023-05-16 | 凌岫(福建)装配式建筑有限公司 | Fireproof plate of composite floating beads and magnesium crystalline silicon and processing technology thereof |
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