CN115594468B - Environment-friendly fireproof insulation board and preparation method thereof - Google Patents
Environment-friendly fireproof insulation board and preparation method thereof Download PDFInfo
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- CN115594468B CN115594468B CN202211578067.4A CN202211578067A CN115594468B CN 115594468 B CN115594468 B CN 115594468B CN 202211578067 A CN202211578067 A CN 202211578067A CN 115594468 B CN115594468 B CN 115594468B
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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
- C04B28/02—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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- 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
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
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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
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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
- C04B2111/40—Porous or lightweight 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
- C04B2201/30—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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- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to the technical field of building materials, and provides an environment-friendly fireproof heat-insulation board and a preparation method thereof, wherein the environment-friendly fireproof heat-insulation board comprises the following components in parts by weight: 140-180 parts of Portland cement, 40-90 parts of fly ash, 0.25-0.7 part of sodium carboxymethylcellulose, 25-30 parts of glass fiber, 3-5 parts of bentonite, 8-10 parts of quartz sand, 2-4 parts of polyacrylamide, 2-3 parts of waste gypsum, 4-6 parts of tetramethylguanidinopropyltrimethoxysilane, 0.5-1.5 parts of water reducing agent, 8-10 parts of foaming agent, 3.5-4.5 parts of flame retardant and 80-100 parts of water. Through above-mentioned technical scheme, the problem that foam concrete fire prevention heated board intensity among the prior art is low has been solved.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to an environment-friendly fireproof heat-insulation board and a preparation method thereof.
Background
Along with the rapid development of national economy, building external wall heat insulation systems increasingly become an important part of human residential engineering, the requirements of the building industry on heat insulation plates are higher and higher, and the problems that the existing building external wall heat insulation materials on the market are various and then the fireproof performance is insufficient always exist. Once a building is in fire, the heat-insulating material can become a combustion improver of the fire, the fire is more and more intense, great economic loss is caused, and meanwhile, the safety of lives and properties of residents can be seriously threatened. Therefore, the requirement on the fire resistance of the external thermal insulation material of the building external wall is higher and higher.
The fireproof performance of the foam concrete fireproof heat-insulation board is good, but because the foam concrete fireproof heat-insulation board contains a large number of foam sealing holes, the strength is low, and therefore the strength of the foam concrete fireproof heat-insulation board needs to be improved.
Disclosure of Invention
The invention provides an environment-friendly fireproof heat-insulation board and a preparation method thereof, and solves the problem of low strength of a foam concrete fireproof heat-insulation board in the related technology.
The technical scheme of the invention is as follows:
an environment-friendly fireproof insulation board comprises the following components in parts by weight: 140-180 parts of Portland cement, 40-90 parts of fly ash, 0.25-0.7 part of sodium carboxymethylcellulose, 25-30 parts of glass fiber, 3-5 parts of bentonite, 8-10 parts of quartz sand, 2-4 parts of polyacrylamide, 2-3 parts of waste gypsum, 4-6 parts of tetramethylguanidinopropyltrimethoxysilane, 0.5-1.5 parts of water reducing agent, 8-10 parts of foaming agent, 3.5-4.5 parts of flame retardant and 80-100 parts of water.
As a further technical scheme, the granularity of the quartz sand is 80-120 meshes.
As a further technical scheme, the water reducing agent is one or more of a polycarboxylic acid water reducing agent and a naphthalene water reducing agent.
As a further technical scheme, the foaming agent is hydrogen peroxide.
As a further technical scheme, the flame retardant is one or more of decabromodiphenylethane and antimony trioxide.
A preparation method of an environment-friendly fireproof insulation board comprises the following steps:
s1, weighing each component of the environment-friendly fireproof heat-insulation board for later use;
s2, dissolving one fifth of polyacrylamide in water, adding tetramethyl guanidinopropyltrimethoxysilane, and uniformly mixing to obtain a mixed solution;
s3, adding glass fiber into the mixed solution, stirring for 3 hours at the temperature of 60 ℃, and drying to obtain modified glass fiber;
s4, mixing the modified glass fiber with the other components except the foaming agent to obtain a mixed material;
s5, adding a foaming agent into the mixture, and stirring for 3-5S to obtain slurry;
s6, placing the slurry in a template, and pouring, demolding and maintaining to obtain the fireproof insulation board.
According to a further technical scheme, the mass ratio of the glass fibers to the mixed liquor in the step S3 is 1.
As a further technical scheme, the curing time in the step S6 is 7-10 days.
As a further technical scheme, in the step S6, demolding is carried out 5-6 hours after pouring is finished.
The working principle and the beneficial effects of the invention are as follows:
1. the fireproof heat-insulation plate prepared by the invention has the advantages of good heat-insulation performance and high compressive strength, the heat conductivity coefficient of the fireproof heat-insulation plate is 0.035-0.046 w/(m.K), and the compressive strength is 0.76-0.84 MPa.
2. According to the invention, the polyacrylamide is added into the components, part of polyacrylamide and tetramethylguanidinopropyltrimethoxysilane are used for modifying glass fibers, in the prepared modified glass fibers, the tetramethylguanidinopropyltrimethoxysilane improves the number of hydroxyl groups on the surface of the glass fibers, hydrogen ions on an amide group in the polyacrylamide can form hydrogen bonds with the hydroxyl groups on the glass fibers, the connectivity among the glass fibers is improved, and meanwhile, the compatibility between the glass fibers and a base material of a fireproof heat-insulation board is improved, so that the modified glass fibers are added into the fireproof heat-insulation board, and the mechanical strength of the heat-insulation board is greatly improved; the polyacrylamide of the other part plays a role in stabilizing foam and preventing collapse in the fireproof heat-insulation board, so that the stability of foam can be improved, the foam collapse is prevented from causing uneven foam, and the heat-insulation performance of the heat-insulation board is improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only 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 inventive step, are intended to be within the scope of the present invention.
In the following examples and comparative examples, the SSF-1000 naphthalene-based water-reducing agent was obtained from Saint mountain Tree building materials science, inc. in Hubei, and the ST-02A polycarboxylic acid-based high performance water-reducing agent was obtained from Saint Tong building materials science, inc. in Hebei.
Example 1
A preparation method of an environment-friendly fireproof insulation board comprises the following steps:
s1, weighing 140 parts of portland cement, 40 parts of fly ash, 0.25 part of sodium carboxymethylcellulose, 25 parts of glass fiber, 3 parts of bentonite, 8 parts of quartz sand, 2 parts of polyacrylamide, 2 parts of waste gypsum, 4 parts of tetramethylguanidyl propyl trimethoxy silane, 0.5 part of ST-02A polycarboxylic acid high-performance water reducing agent, 8 parts of hydrogen peroxide, 3.5 parts of antimony trioxide and 80 parts of water for later use;
s2, dissolving one fifth of polyacrylamide in water, adding tetramethyl guanidinopropyltrimethoxysilane, and uniformly mixing to obtain a mixed solution;
s3, adding glass fiber into the mixed solution, stirring for 3 hours at the temperature of 60 ℃, and drying to obtain modified glass fiber; wherein the mass ratio of the glass fiber to the mixed solution is 1;
s4, mixing the modified glass fiber with the other components except hydrogen peroxide to obtain a mixed material;
s5, adding hydrogen peroxide into the mixture, and stirring for 3S to obtain slurry;
s6, placing the slurry in a template, demolding after casting for 5 hours, and maintaining for 10 days to obtain the fireproof insulation board.
Example 2
A preparation method of an environment-friendly fireproof insulation board comprises the following steps:
s1, weighing 180 parts of portland cement, 90 parts of fly ash, 0.7 part of sodium carboxymethylcellulose, 28 parts of glass fiber, 5 parts of bentonite, 10 parts of quartz sand, 4 parts of polyacrylamide, 3 parts of waste gypsum, 6 parts of tetramethylguanidyl propyl trimethoxy silane, 1.5 parts of ST-02A polycarboxylic high-performance water reducing agent, 10 parts of hydrogen peroxide, 4.5 parts of antimony trioxide and 100 parts of water for later use;
s2, dissolving one fifth of polyacrylamide in water, adding tetramethyl guanidinopropyltrimethoxysilane, and uniformly mixing to obtain a mixed solution;
s3, adding glass fiber into the mixed solution, stirring for 3 hours at the temperature of 60 ℃, and drying to obtain modified glass fiber; wherein the mass ratio of the glass fiber to the mixed solution is 1;
s4, mixing the modified glass fiber with the other components except hydrogen peroxide to obtain a mixed material;
s5, adding hydrogen peroxide into the mixture, and stirring for 4S to obtain slurry;
s6, placing the slurry in a template, demolding 5 hours after pouring, and maintaining for 10 days to obtain the fireproof insulation board.
Example 3
A preparation method of an environment-friendly fireproof insulation board comprises the following steps:
s1, weighing 160 parts of portland cement, 70 parts of fly ash, 0.6 part of sodium carboxymethylcellulose, 30 parts of glass fiber, 4 parts of bentonite, 9 parts of quartz sand, 3 parts of polyacrylamide, 2.5 parts of waste gypsum, 5 parts of tetramethylguanidyl propyl trimethoxy silane, 1 part of ST-02A polycarboxylic high-performance water reducing agent, 9 parts of hydrogen peroxide, 4 parts of antimony trioxide and 85 parts of water for later use;
s2, dissolving one fifth of polyacrylamide in water, adding tetramethyl guanidinopropyltrimethoxysilane, and uniformly mixing to obtain a mixed solution;
s3, adding glass fiber into the mixed solution, stirring for 3 hours at the temperature of 60 ℃, and drying to obtain modified glass fiber; wherein the mass ratio of the glass fiber to the mixed solution is 1;
s4, mixing the modified glass fiber with the other components except hydrogen peroxide to obtain a mixed material;
s5, adding hydrogen peroxide into the mixture, and stirring for 5S to obtain slurry;
s6, placing the slurry in a template, demolding after casting for 5 hours, and maintaining for 10 days to obtain the fireproof insulation board.
Example 4
A preparation method of an environment-friendly fireproof insulation board comprises the following steps:
s1, weighing 160 parts of portland cement, 80 parts of fly ash, 0.65 part of sodium carboxymethylcellulose, 29 parts of glass fiber, 5 parts of bentonite, 10 parts of quartz sand, 3 parts of polyacrylamide, 3 parts of waste gypsum, 5 parts of tetramethylguanidyl propyl trimethoxy silane, 1 part of SSF-1000 naphthalene water reducer, 8 parts of hydrogen peroxide, 4 parts of antimony trioxide and 90 parts of water for later use;
s2, dissolving one fifth of polyacrylamide in water, adding tetramethyl guanidinopropyltrimethoxysilane, and uniformly mixing to obtain a mixed solution;
s3, adding glass fiber into the mixed solution, stirring for 3 hours at the temperature of 60 ℃, and drying to obtain modified glass fiber; wherein the mass ratio of the glass fiber to the mixed solution is 1;
s4, mixing the modified glass fiber with the rest components except hydrogen peroxide to obtain a mixed material;
s5, adding hydrogen peroxide into the mixture, and stirring for 3S to obtain slurry;
s6, placing the slurry in a template, demolding after casting for 5 hours, and maintaining for 10 days to obtain the fireproof insulation board.
Comparative example 1
In comparison with example 1, comparative example 1 does not add tetramethylguanidinopropyltrimethoxysilane, and the rest is the same as example 1.
Comparative example 2
Comparative example 2 compared to example 1, in which tetramethylguanidinopropyltrimethoxysilane was replaced with an equal amount of KH-570, was otherwise the same as example 1.
Comparative example 3
A preparation method of an environment-friendly fireproof insulation board comprises the following steps:
s1, weighing 140 parts of portland cement, 40 parts of fly ash, 0.25 part of sodium carboxymethylcellulose, 25 parts of glass fiber, 3 parts of bentonite, 8 parts of quartz sand, 2 parts of polyacrylamide, 2 parts of waste gypsum, 4 parts of tetramethylguanidyl propyl trimethoxy silane, 0.5 part of ST-02A polycarboxylic acid high-performance water reducing agent, 8 parts of hydrogen peroxide, 3.5 parts of antimony trioxide and 80 parts of water for later use;
s2, mixing all the components to obtain a mixed material;
s3, adding hydrogen peroxide into the mixture, and stirring for 3S to obtain slurry;
and S4, placing the slurry in a template, demolding after casting for 5 hours, and curing for 10 days to obtain the fireproof insulation board.
Comparative example 4
Comparative example 4 replaces polyacrylamide with an equal amount of trisodium phosphate as compared to example 1, otherwise the same as example 1.
The thermal conductivity and compressive strength of the fireproof insulation boards prepared in examples 1 to 4 and comparative examples 1 to 4 were measured.
And (3) measuring the heat conductivity coefficient: reference is made to GB/T10294-2008' determination of steady-state thermal resistance of heat-insulating material and related characteristics of heat-shielding plate method
And (3) measuring the compressive strength: reference GB/T5486-2008 test method for inorganic hard heat-insulating products
TABLE 1 measurement results
Note: the standard requirement in the table is JC/T2200-2013 cement-based foam insulation board
Compared with the example 4, the comparative example 1 does not add tetramethylguanidinopropyltrimethoxysilane, the comparative example 2 replaces tetramethylguanidinopropyltrimethoxysilane with the same amount of KH-570, and the comparative example 3 directly mixes the components, so that the compressive strength of the fireproof insulation board prepared in the comparative examples 1-3 is lower than that of the example 1, and the compressive strength of the insulation board can be improved when the tetramethylguanidinopropyltrimethoxysilane and polyacrylamide are used for modifying glass fibers simultaneously in the preparation process.
Comparative example 4, polyacrylamide is replaced by trisodium phosphate with the same amount, the compressive strength of the prepared fireproof heat-insulation board is lower than that of example 1, the heat conductivity coefficient is higher than that of example 1, and the compressive strength and the heat-insulation performance of the heat-insulation board are reduced after the polyacrylamide is replaced.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. An environment-friendly fireproof insulation board is characterized by comprising the following components in parts by weight: 140-180 parts of Portland cement, 40-90 parts of fly ash, 0.25-0.7 part of sodium carboxymethylcellulose, 25-30 parts of glass fiber, 3-5 parts of bentonite, 8-10 parts of quartz sand, 2-4 parts of polyacrylamide, 2-3 parts of waste gypsum, 4-6 parts of tetramethylguanidinopropyltrimethoxysilane, 0.5-1.5 parts of water reducing agent, 8-10 parts of foaming agent, 3.5-4.5 parts of flame retardant and 80-100 parts of water;
the preparation method of the environment-friendly fireproof insulation board comprises the following steps:
s1, weighing each component of the environment-friendly fireproof heat-insulation board for later use;
s2, dissolving one fifth of polyacrylamide in water, adding tetramethyl guanidinopropyltrimethoxysilane, and uniformly mixing to obtain a mixed solution;
s3, adding glass fiber into the mixed solution, stirring for 3 hours at the temperature of 60 ℃, and drying to obtain modified glass fiber;
s4, mixing the modified glass fiber with the other components except the foaming agent to obtain a mixed material;
s5, adding a foaming agent into the mixture, and stirring for 3-5S to obtain slurry;
s6, placing the slurry in a template, and pouring, demolding and maintaining to obtain the fireproof insulation board.
2. The environment-friendly fireproof heat-insulation board according to claim 1, wherein the granularity of the quartz sand is 80-120 meshes.
3. The environment-friendly fireproof insulation board according to claim 1, characterized in that the water reducing agent is one or more of a polycarboxylic acid water reducing agent and a naphthalene water reducing agent.
4. The environment-friendly fireproof heat-insulation board according to claim 1, wherein the foaming agent is hydrogen peroxide.
5. The environment-friendly fireproof heat-insulation board as claimed in claim 1, wherein the fire retardant is one or more of decabromodiphenylethane and antimony trioxide.
6. The environment-friendly fireproof heat-insulation board as claimed in claim 1, wherein the mass ratio of the glass fiber to the mixed liquor in S3 is 1.
7. The environment-friendly fireproof heat-insulation board according to claim 1, wherein the curing time in the S6 is 7-10 days.
8. The environment-friendly fireproof heat-insulation board according to claim 1, wherein the demoulding in the step S6 is carried out 5-6 hours after the pouring is finished.
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| CN115594468B true CN115594468B (en) | 2023-03-07 |
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| CN103833295A (en) * | 2013-12-13 | 2014-06-04 | 中国神华能源股份有限公司 | Foam cement warming plate, and composition and method for manufacturing the same |
| CN104831885A (en) * | 2015-04-03 | 2015-08-12 | 重庆思贝肯节能技术开发有限公司 | Fiber reinforcement foaming cement thermal insulation decoration board |
| CN109184011A (en) * | 2018-09-14 | 2019-01-11 | 长兴鑫迪耐火材料厂 | A kind of thermal insulation material for building |
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| CN103497490A (en) * | 2013-09-27 | 2014-01-08 | 深圳市科聚新材料有限公司 | PET (polyethylene terephthalate) composite material and preparation method thereof |
| CN103833295A (en) * | 2013-12-13 | 2014-06-04 | 中国神华能源股份有限公司 | Foam cement warming plate, and composition and method for manufacturing the same |
| CN104831885A (en) * | 2015-04-03 | 2015-08-12 | 重庆思贝肯节能技术开发有限公司 | Fiber reinforcement foaming cement thermal insulation decoration board |
| CN109184011A (en) * | 2018-09-14 | 2019-01-11 | 长兴鑫迪耐火材料厂 | A kind of thermal insulation material for building |
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