CN107673728B - Preparation method of brucite-based light fireproof door filler - Google Patents
Preparation method of brucite-based light fireproof door filler Download PDFInfo
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- CN107673728B CN107673728B CN201711036101.4A CN201711036101A CN107673728B CN 107673728 B CN107673728 B CN 107673728B CN 201711036101 A CN201711036101 A CN 201711036101A CN 107673728 B CN107673728 B CN 107673728B
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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
- C04B28/34—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 cold phosphate binders
- C04B28/346—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 cold phosphate binders the phosphate binder being present in the starting composition as a mixture of free acid and one or more phosphates
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
- C03C13/06—Mineral fibres, e.g. slag wool, mineral wool, rock wool
-
- 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
- C04B2111/40—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
- C04B2201/20—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
- C04B2201/30—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
-
- 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
Abstract
The invention belongs to the technical field of fire prevention and insulation of buildings, and particularly relates to a preparation method of brucite-based light fireproof door filler. Compared with the prior art, the invention has the following advantages: the brucite is modified under specific conditions, so that the brucite has better compatibility in a mixed material, and due to the synergistic effect of the material A and the graphite oxide colloid, the mechanical property of the obtained filler is improved compared with that of the brucite, the heat release speed is reduced, the whole material is in a fine and uniform microporous structure, the density of the material is reduced, an internal buffering effect can be achieved when strong thermal expansion and cold contraction occur, the fireproof performance reaches the incombustible A1 level, the performance is stable, the application of the brucite in the fireproof field is realized, the dry density is 280kg/m, the mounting and the use are convenient, and the popularization and the use are easy.
Description
Technical Field
The invention belongs to the technical field of fire prevention and insulation of buildings, and particularly relates to a preparation method of a brucite-based light fireproof door filler.
Background
Many methods and techniques have been developed for manufacturing fire doors and fire door cores for a long time, but most of these prior art designs are not well adapted to fully automated manufacturing processes, and currently, fire doors on the market include a fire core panel and a fire facing layer covering the fire core panel, the fire core panel is mainly made of aluminum silicate cotton or expanded pearl rock wool, however, the fire core panel of the fire door is mainly made of aluminum silicate cotton, which generates toxic smoke; the fireproof core board of the fireproof door takes expanded pearl rock wool as a main material, and has poor strength and fireproof combustion performance; the metal material is not easy to use because the door body is too heavy; there is a need for a fire door core that is lightweight, easy to use, and resistant to fire penetration.
The brucite has abundant reserves, has better smoke suppression and environmental protection properties and is concerned with, but the development of the material is hindered because the mechanical property of the brucite is poor in the using process and the practical application requirements cannot be met, and although a plurality of materials for researching the brucite exist at present, the application of the brucite in the aspect of fire prevention is not reported.
Disclosure of Invention
The invention aims to provide a preparation method of brucite-based light fireproof door filler aiming at the existing problems.
The invention is realized by the following technical scheme: a preparation method of brucite-based lightweight fireproof door filler comprises the following steps:
(1) preparing raw materials, by weight, 25-30 parts of brucite, 18-24 parts of mineral rock wool or granular cotton, 4-6 parts of polyphosphoric acid, 8-12 parts of taxus bark fiber, 1.5-3.4 parts of dodecyl trimethyl silane, 0.8-2.2 parts of gamma-methacryloxypropyl trimethoxy silane, 16-18 parts of graphite oxide colloid, 0.5-0.8 part of foaming agent and 0.1-0.3 part of water reducing agent;
(2) preparing gamma-methacryloxypropyltrimethoxysilane into a solution with the mass concentration of 8-15%, adding taxus chinensis bark fibers, treating for 3-4 minutes under the condition that the ultrasonic frequency is 42-45kHz, then stirring for 2-5 minutes by using a stirring device at the rotating speed of 100 plus one rotation/minute and 120 revolutions/minute, filtering out the fibers, and drying to obtain a material A for later use;
(3) preparing polyphosphoric acid into a solution with the mass concentration of 15-18%, adding brucite, treating for 1-2 minutes under the condition that the ultrasonic frequency is 28-32kHz, then adding dodecyl trimethyl silane, treating for 25-30 seconds under the condition that the ultrasonic frequency is 42-45kHz, filtering, and drying to obtain a material B for later use;
(4) preparing foaming agent foam by using a foaming agent, mixing the material A, the material B and other residual raw materials, uniformly stirring the mixture with the water content of 45-48% by using an adjuster, performing compression molding in a mold, and performing maintenance at normal temperature to obtain the product.
As a further improvement of the scheme, the mineral rock wool or the granular cotton is produced by spinning the following raw materials in parts by weight through a high-temperature furnace, and comprises 18-22 parts of basalt, 36-45 parts of igneous rock, 24-28 parts of dolomite, 2-7 parts of olivine and 11-16 parts of diabase.
As a further improvement to the above scheme, the treatment temperature in the step (2) is not higher than 68 ℃.
As a further improvement to the above scheme, the treatment temperature in the step (3) is 75-82 ℃.
As a further improvement to the above scheme, the preparation method of the foaming agent foam is: diluting the foaming agent by 16-18 times by using deionized water, and preparing by using a special air foaming machine.
Compared with the prior art, the invention has the following advantages: the brucite is modified under specific conditions, so that the brucite has better compatibility in a mixed material, and due to the synergistic effect of the material A and the graphite oxide colloid, the mechanical property of the obtained filler is improved compared with that of the brucite, the heat release speed is reduced, the whole material is in a fine and uniform microporous structure, the density of the material is reduced, the material can play an internal buffering role when the material is subjected to strong thermal expansion and cold contraction, the fireproof performance reaches the incombustible A1 level, the smoke concentration reaches the safety level specified requirement, the toxicity reaches the safety level AQ1, the performance is stable, the application of the brucite in the fireproof field is realized, the weight is light, the dry density is 240-280kg/m, the installation and the use are convenient, and the popularization and the use are easy.
Detailed Description
Example 1
A preparation method of brucite-based lightweight fireproof door filler comprises the following steps:
(1) preparing raw materials, by weight, 28 parts of brucite, 20 parts of mineral rock wool or granular cotton, 5 parts of polyphosphoric acid, 10 parts of taxus bark fiber, 2.7 parts of dodecyl trimethyl silane, 1.5 parts of gamma-methacryloxypropyl trimethoxy silane, 17 parts of graphite oxide colloid, 0.6 part of foaming agent and 0.2 part of water reducing agent;
(2) preparing gamma-methacryloxypropyltrimethoxysilane into a solution with the mass concentration of 10.8%, adding taxus chinensis bark fibers, treating for 4 minutes under the condition that the ultrasonic frequency is 44kHz, then stirring for 4 minutes by a stirring device at the rotating speed of 100 plus one rotation/minute of 120 revolutions/minute, filtering out the fibers, and drying at the temperature of 65 ℃ to obtain a material A for later use;
(3) preparing polyphosphoric acid into a solution with the mass concentration of 16%, adding brucite to treat for 2 minutes under the condition that the ultrasonic frequency is 30kHz, then adding dodecyl trimethylsilane to treat for 28 seconds under the condition that the ultrasonic frequency is 43kHz, and drying the mixture at the temperature of 78 ℃ after filtering to obtain a material B for later use;
(4) preparing foaming agent foam by using a foaming agent, mixing the material A, the material B and other residual raw materials, uniformly stirring the mixture with the water content of a regulator of 46 percent, performing compression molding in a mold, and performing maintenance under the normal temperature condition to obtain the product.
The mineral rock wool or the granular cotton is produced by spinning the following raw materials in parts by weight through a high-temperature melting furnace, and comprises 20 parts of basalt, 42 parts of igneous rock, 26 parts of dolomite, 5 parts of olivine and 13 parts of diabase.
The preparation method of the foaming agent foam comprises the following steps: the foaming agent is diluted by 16 times by deionized water and prepared by a special air foaming machine.
Example 2
A preparation method of brucite-based lightweight fireproof door filler comprises the following steps:
(1) preparing raw materials, by weight, 25 parts of brucite, 24 parts of mineral rock wool or granular cotton, 4 parts of polyphosphoric acid, 12 parts of taxus bark fiber, 1.5 parts of dodecyl trimethyl silane, 0.8 part of gamma-methacryloxypropyl trimethoxy silane, 16 parts of graphite oxide colloid, 0.5 part of foaming agent and 0.3 part of water reducing agent;
(2) preparing gamma-methacryloxypropyltrimethoxysilane into a solution with the mass concentration of 15%, adding taxus chinensis bark fibers, treating for 4 minutes under the condition that the ultrasonic frequency is 42kHz, then stirring for 2 minutes by a stirring device at the rotating speed of 100 plus one rotation/minute and 120 revolutions/minute, filtering out the fibers, and drying at the temperature of 65 ℃ to obtain a material A for later use;
(3) preparing polyphosphoric acid into a solution with the mass concentration of 15%, adding brucite to treat for 2 minutes under the condition that the ultrasonic frequency is 32kHz, then adding dodecyl trimethylsilane to treat for 30 seconds under the condition that the ultrasonic frequency is 45kHz, and drying the mixture at the temperature of 78 ℃ after filtering to obtain a material B for later use;
(4) preparing foaming agent foam by using a foaming agent, mixing the material A, the material B and other residual raw materials, uniformly stirring the mixture with the water content of 45 percent in a regulator, performing compression molding in a mold, and performing maintenance at normal temperature to obtain the product.
The mineral rock wool or the granular cotton is produced by spinning the following raw materials in parts by weight through a high-temperature melting furnace, and comprises 22 parts of basalt, 36 parts of igneous rock, 24 parts of dolomite, 7 parts of olivine and 11 parts of diabase.
The preparation method of the foaming agent foam comprises the following steps: diluting the foaming agent by 18 times with deionized water, and preparing by using a special air foaming machine.
Example 3
A preparation method of brucite-based lightweight fireproof door filler comprises the following steps:
(1) preparing raw materials, by weight, 30 parts of brucite, 18 parts of mineral rock wool or granular cotton, 6 parts of polyphosphoric acid, 8 parts of taxus chinensis bark fiber, 3.4 parts of dodecyl trimethyl silane, 2.2 parts of gamma-methacryloxypropyl trimethoxy silane, 18 parts of graphite oxide colloid, 0.8 part of foaming agent and 0.1 part of water reducing agent;
(2) preparing gamma-methacryloxypropyltrimethoxysilane into a solution with the mass concentration of 8%, adding taxus chinensis bark fibers, treating for 3 minutes under the condition that the ultrasonic frequency is 42kHz, then stirring for 5 minutes by a stirring device at the rotating speed of 100 plus one rotation/minute and 120 revolutions/minute, filtering out the fibers, and drying at the temperature of 65 ℃ to obtain a material A for later use;
(3) preparing polyphosphoric acid into a solution with the mass concentration of 18%, adding brucite to treat for 1 minute under the condition that the ultrasonic frequency is 32kHz, then adding dodecyl trimethylsilane to treat for 25 seconds under the condition that the ultrasonic frequency is 45kHz, and drying the mixture at the temperature of 78 ℃ after filtering to obtain a material B for later use;
(4) preparing foaming agent foam by using a foaming agent, mixing the material A, the material B and other residual raw materials, uniformly stirring with the water content of a regulator of 48 percent, performing compression molding in a mold, and performing maintenance under the normal temperature condition to obtain the product.
The mineral rock wool or the granular cotton is produced by spinning the following raw materials in parts by weight through a high-temperature melting furnace, and comprises 18 parts of basalt, 36 parts of igneous rock, 24 parts of dolomite, 7 parts of olivine and 11 parts of diabase.
The preparation method of the foaming agent foam comprises the following steps: the foaming agent is diluted by 16 times by deionized water and prepared by a special air foaming machine.
A control group 1 was set, and step (3) was omitted, and the rest was the same as in example 1; setting a comparison group 2, replacing the step (3) with the step of preparing polyphosphoric acid into a solution with the mass concentration of 15-18%, adding dodecyl trimethyl silane and brucite, treating for 4-5 minutes under the condition that the ultrasonic frequency is 28-32kHz, filtering, and drying at 78 ℃ to obtain a material B for later use, wherein the other contents are the same as those in the example 1; a control group 3 was set, and step (2) was omitted, and the rest was the same as in example 1; setting a comparison group 4, replacing the graphite oxide colloid in the embodiment 1 with mineral rock wool or granular cotton with equal weight, and keeping the rest contents unchanged; the following results were obtained for each set of properties:
TABLE 1
| Group of | Transverse bending strength (N/mm) | Water content (%) | Thermal conductivity (w/mk) | Non-combustible property |
| Standard of merit | ≥10 | ≤10 | ≤0.29 | GB9228-1999 ＞2h |
| Example 1 | 15.4 | 3.6 | 0.046 | ＞2h |
| Example 2 | 14.9 | 4.1 | 0.053 | ＞2h |
| Example 3 | 15.2 | 3.8 | 0.049 | ＞2h |
| Control group 1 | 10.2 | 10.4 | 0.346 | ＜1h |
| Control group 2 | 11.8 | 6.7 | 0.192 | ＞2h |
| Control group 3 | 9.6 | 6.2 | 0.135 | ＞2h |
| Control group 4 | 11.4 | 12.5 | 0.328 | ＜2h |
As can be seen from the data in Table 1, the treatment of the bark fibers of Taxus chinensis has a large influence on the mechanical strength of the filler, whether brucite is modified or not and the modification mode have obvious influences on the mechanical strength and the flame resistance of the filler, the use of the graphite oxide colloid material has a relatively small influence on the mechanical strength, but has a large influence on the flame resistance, and in actual use, the raw materials and the preparation conditions of the raw materials can be correspondingly adjusted according to the actual use requirements.
Claims (5)
1. The preparation method of the brucite-based light fireproof door filler is characterized by comprising the following steps of:
(1) preparing raw materials, by weight, 25-30 parts of brucite, 18-24 parts of mineral rock wool or granular cotton, 4-6 parts of polyphosphoric acid, 8-12 parts of taxus bark fiber, 1.5-3.4 parts of dodecyl trimethyl silane, 0.8-2.2 parts of gamma-methacryloxypropyl trimethoxy silane, 16-18 parts of graphite oxide colloid, 0.5-0.8 part of foaming agent and 0.1-0.3 part of water reducing agent;
(2) preparing gamma-methacryloxypropyltrimethoxysilane into a solution with the mass concentration of 8-15%, adding taxus chinensis bark fibers, treating for 3-4 minutes under the condition that the ultrasonic frequency is 42-45kHz, then stirring for 2-5 minutes by using a stirring device at the rotating speed of 100 plus one rotation/minute and 120 revolutions/minute, filtering out the fibers, and drying to obtain a material A for later use;
(3) preparing polyphosphoric acid into a solution with the mass concentration of 15-18%, adding brucite, treating for 1-2 minutes under the condition that the ultrasonic frequency is 28-32kHz, then adding dodecyl trimethyl silane, treating for 25-30 seconds under the condition that the ultrasonic frequency is 42-45kHz, filtering, and drying to obtain a material B for later use;
(4) preparing foaming agent foam by using a foaming agent, mixing the foaming agent foam with the material A, the material B and other residual raw materials, uniformly stirring the mixture, performing compression molding in a mold, and curing at normal temperature to obtain the product, wherein the water content of the regulator is 45-48%.
2. The method of claim 1, wherein the mineral wool or the granular wool is produced by spinning the raw materials including basalt 18-22 parts, igneous rock 36-45 parts, dolomite 24-28 parts, olivine 2-7 parts, and diabase 11-16 parts by weight in a high temperature furnace.
3. The method of claim 1, wherein the step (2) is performed at a temperature not higher than 68 ℃.
4. The method of claim 1, wherein the processing temperature in step (3) is 75-82 ℃.
5. The method of claim 1, wherein the foaming agent foam is prepared by the steps of: diluting the foaming agent by 16-18 times by using deionized water, and preparing by using a special air foaming machine.
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| CN201711036101.4A CN107673728B (en) | 2017-10-30 | 2017-10-30 | Preparation method of brucite-based light fireproof door filler |
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| CN107673728B true CN107673728B (en) | 2020-10-09 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003055888A (en) * | 2001-08-10 | 2003-02-26 | Tokiwa Electric Co Ltd | Inorganic sheet material, inorganic composite material, and inorganic structural material |
| CN101391872A (en) * | 2007-09-17 | 2009-03-25 | 刘伟华 | Novel thermal insulation composite material composition and method of making the same |
| CN101543672A (en) * | 2009-03-15 | 2009-09-30 | 徐志毅 | Extinguish material, preparation method and application thereof |
| CN102501300A (en) * | 2011-11-01 | 2012-06-20 | 长安大学 | Method for manufacturing composite mineral wool board for building insulation |
| CN105396254A (en) * | 2015-11-26 | 2016-03-16 | 襄阳市沧海科技有限公司 | Fluorine-containing complex function extinguishing material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103030357B (en) * | 2011-09-29 | 2014-12-10 | 深圳市爱思宝科技发展有限公司 | Heat-insulation slurry composition and applications thereof |
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- 2017-10-30 CN CN201711036101.4A patent/CN107673728B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003055888A (en) * | 2001-08-10 | 2003-02-26 | Tokiwa Electric Co Ltd | Inorganic sheet material, inorganic composite material, and inorganic structural material |
| CN101391872A (en) * | 2007-09-17 | 2009-03-25 | 刘伟华 | Novel thermal insulation composite material composition and method of making the same |
| CN101543672A (en) * | 2009-03-15 | 2009-09-30 | 徐志毅 | Extinguish material, preparation method and application thereof |
| CN102501300A (en) * | 2011-11-01 | 2012-06-20 | 长安大学 | Method for manufacturing composite mineral wool board for building insulation |
| CN105396254A (en) * | 2015-11-26 | 2016-03-16 | 襄阳市沧海科技有限公司 | Fluorine-containing complex function extinguishing material |
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Denomination of invention: Preparation method of brucite based lightweight fireproof door filler Effective date of registration: 20230424 Granted publication date: 20201009 Pledgee: Anhui Funan Rural Commercial Bank Co.,Ltd. Technology Branch Pledgor: FUNAN MINAN CIVIL AIR DEFENSE ENG EQUIPMENT Co.,Ltd. Registration number: Y2023980039083 |
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