CN111592289A - Mesoporous material composite calcium silicate fireproof plate and preparation method thereof - Google Patents
Mesoporous material composite calcium silicate fireproof plate and preparation method thereof Download PDFInfo
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- CN111592289A CN111592289A CN202010464011.0A CN202010464011A CN111592289A CN 111592289 A CN111592289 A CN 111592289A CN 202010464011 A CN202010464011 A CN 202010464011A CN 111592289 A CN111592289 A CN 111592289A
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- calcium silicate
- mesoporous material
- fireproof plate
- fiber
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/243—Setting, e.g. drying, dehydrating or firing ceramic articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
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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
-
- 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
- C04B38/08—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding porous substances
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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
- C04B2201/20—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 relates to a mesoporous material composite calcium silicate fireproof plate, which consists of components such as calcium silicate hydrate, mesoporous materials, fibers and the like. The fireproof heat-insulating material is mainly applied to the fields of fire prevention and heat insulation of steel structures, buildings and the like. On the basis of the traditional process of the fiber reinforced calcium silicate board, the mesoporous material is adopted for compounding, and the heat conductivity coefficient is further reduced on the premise of maintaining higher strength of the fireproof board.
Description
Technical Field
The invention belongs to the field of materials, and particularly relates to a mesoporous material composite calcium silicate fireproof plate and a preparation method thereof.
Background
The calcium silicate fireproof plate is widely applied to the fields of steel structure fire prevention, building fire prevention and the like due to excellent high temperature resistance (up to 1000 ℃) and better heat preservation and heat insulation performance. According to the performance, the fiber-reinforced calcium silicate board can be divided into a fiber-reinforced calcium silicate board (described in JC/T564-2008 'fiber-reinforced calcium silicate board') and an ultra-light and hard calcium silicate type calcium silicate board (described in GB/T10699-2015 'calcium silicate heat insulation product'). The fiber-reinforced calcium silicate board has simple preparation process and high strength, but has relatively poor heat preservation and insulation effects; the ultra-light calcium silicate stone type calcium silicate board has excellent heat insulation effect, but has poor strength, is easy to damage in construction and practical use, has relatively harsh preparation process, needs to be prepared by a dynamic hydrothermal method at higher temperature (200 ℃ plus 250 ℃) and under pressure, has high production energy consumption and has certain danger.
Disclosure of Invention
On the basis of the traditional process of the fiber reinforced calcium silicate board, the mesoporous material is adopted for compounding, and the heat conductivity coefficient is further reduced on the premise of maintaining higher strength of the fireproof board.
A mesoporous material composite calcium silicate fireproof plate comprises the following components in parts by weight:
30-99.9 parts of hydrated calcium silicate
0.01-70 parts of mesoporous material
0.1-5 parts of fiber
Wherein, the calcium source and the silicon source in the calcium silicate hydrate are mixed according to the mol ratio of CaO: SiO 220.9-1.1. The calcium source is raw materials containing CaO, such as quicklime, lime milk and the like; the silicon source is SiO-containing quartz stone, silica fume, silica micropowder, fly ash and the like2The raw materials of (1).
The mesoporous material is an ordered mesoporous material, and the bulk density is 130-300kg/m3。
The fiber is at least one of glass fiber, mullite fiber and ceramic fiber.
A preparation method of a mesoporous material composite calcium silicate fireproof plate comprises the following steps:
(1) according to a molar ratio of CaO: SiO 22Mixing quicklime/lime milk and a silicon source according to the proportion of 0.9-1.1, reacting at 40-60 ℃ for 6-8h, washing and filtering to obtain a filter cake;
(2) mixing the mesoporous material with a proper amount of water, and grinding the mixture to different particle sizes (5-200 mu m) in a ball milling mode to obtain slurry;
(3) adding the calcium silicate hydrate filter cake and the fibers into the mesoporous material slurry in proportion, and uniformly stirring;
(4) pouring the slurry into a mold, applying pressure to discharge excessive water, and performing filter pressing and molding;
(5) naturally curing the molded material in air for 4-8h, and curing in a steam environment at 180 ℃ for 8-12 h;
(6) drying at 105 ℃ to obtain the finished product.
On the basis of the traditional process of the fiber reinforced calcium silicate board, the mesoporous material is adopted for compounding, and the heat conductivity coefficient is further reduced on the premise of maintaining higher strength of the fireproof board. The fireproof heat-insulating material is mainly applied to the fields of fire prevention and heat insulation of steel structures, buildings and the like.
Detailed Description
Example 1
According to a molar ratio of CaO: SiO 22Mixing quicklime and silicon powder uniformly, adding a proper amount of water to form a suspension with the solid content of 50%, stirring and reacting at 50 ℃ for 6 hours, washing, and filtering to obtain a calcium silicate hydrate filter cake. Mixing the mesoporous material with water to form a suspension with the solid content of 40%, and grinding the mesoporous material suspension to the particle size of 200 μm by using a ball mill.
Taking 99.99 parts of calcium silicate hydrate, 0.01 part of mesoporous material (calculated according to mesoporous material suspension with solid content of 40%), 0.1 part of glass fiber, mixing and stirring uniformly, pouring into a mold, and performing filter pressing and molding. And naturally curing the molded material in air for 6h, curing the molded material in a steam environment at 180 ℃ for 8h, and drying the molded material at 105 ℃. The dry density was found to be 1260kg/m3The compressive strength is 18MPa, and the thermal conductivity is 0.18W/(m.k).
Example 2
According to a molar ratio of CaO: SiO 22Mixing quicklime and silicon powder uniformly, adding a proper amount of water to form a suspension with the solid content of 50%, stirring and reacting at 50 ℃ for 6 hours, washing, and filtering to obtain a calcium silicate hydrate filter cake. Mixing the mesoporous material with water to form a mixture with a solid content of 40%Suspending the mesoporous material suspension, and grinding the mesoporous material suspension to a particle size of 100 mu m by using a ball mill.
40 parts of calcium silicate hydrate, 60 parts of mesoporous material (calculated according to mesoporous material suspension with solid content of 40%), and 0.5 part of glass fiber are mixed and stirred uniformly, poured into a mold, and subjected to filter pressing and molding. And naturally curing the molded material in air for 6h, curing the molded material in a steam environment at 180 ℃ for 8h, and drying the molded material at 105 ℃. The dry density was found to be 268kg/m3The compressive strength is 0.9MPa, and the thermal conductivity is 0.048W/(m.k).
Example 3
According to a molar ratio of CaO: SiO 221.1, uniformly mixing quicklime and silicon micropowder, adding a proper amount of water to form a suspension with the solid content of 50%, stirring and reacting at 50 ℃ for 6 hours, washing, and filtering to obtain a calcium silicate hydrate filter cake. Mixing the mesoporous material with water to form a suspension with the solid content of 40%, and grinding the mesoporous material suspension to the particle size of 200 μm by using a ball mill.
80 parts of calcium silicate hydrate, 40 parts of mesoporous material (calculated according to mesoporous material suspension with solid content of 40%), and 0.1 part of glass fiber are taken, mixed and stirred uniformly, poured into a mold, and subjected to filter pressing and molding. And naturally curing the molded material in air for 6h, curing the molded material in a steam environment at 180 ℃ for 8h, and drying the molded material at 105 ℃. The dry density was found to be 789kg/m3The compressive strength is 6.6MPa, and the thermal conductivity is 0.11W/(m.k).
The present invention is not limited to the above-described embodiments, and any simple, equivalent changes or modifications made to the above-described embodiments in accordance with the technical spirit of the present invention fall within the technical scope of the present invention.
Claims (6)
1. The mesoporous material composite calcium silicate fireproof plate is characterized by comprising the following components in parts by mass:
30-99.9 parts of hydrated calcium silicate
0.01-70 parts of mesoporous material
0.1-5 parts of fiber.
2. The mesoporous material calcium silicate composite according to claim 1The fireproof plate is characterized in that the calcium source and the silicon source in the calcium silicate hydrate are mixed according to the molar ratio of CaO: SiO 22＝0.9-1.1。
3. The mesoporous material composite calcium silicate fireproof plate as claimed in claim 1, wherein the calcium source is CaO-containing material such as quicklime and lime milk; the silicon source is SiO-containing quartz stone, silica fume, silica micropowder, fly ash and the like2The raw materials of (1).
4. The fireproof plate of claim 1, wherein the mesoporous material is an ordered mesoporous material with a bulk density of 130-300kg/m3。
5. The mesoporous material composite calcium silicate fireproof plate as claimed in claim 1, wherein the fiber is at least one of glass fiber, mullite fiber and ceramic fiber.
6. The preparation method of the mesoporous material composite calcium silicate fireproof plate is characterized by comprising the following steps:
(1) according to a molar ratio of CaO: SiO 22Mixing quicklime/lime milk and a silicon source according to the proportion of 0.9-1.1, reacting at 40-60 ℃ for 6-8h, washing and filtering to obtain a filter cake;
(2) mixing the mesoporous material with a proper amount of water, and grinding the mixture to different particle sizes (5-200 mu m) in a ball milling mode to obtain slurry;
(3) adding the calcium silicate hydrate filter cake and the fibers into the mesoporous material slurry in proportion, and uniformly stirring;
(4) pouring the slurry into a mold, applying pressure to discharge excessive water, and performing filter pressing and molding;
(5) naturally curing the molded material in air for 4-8h, and curing in a steam environment at 180 ℃ for 8-12 h;
(6) drying at 105 ℃ to obtain the finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010464011.0A CN111592289A (en) | 2020-05-27 | 2020-05-27 | Mesoporous material composite calcium silicate fireproof plate and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010464011.0A CN111592289A (en) | 2020-05-27 | 2020-05-27 | Mesoporous material composite calcium silicate fireproof plate and preparation method thereof |
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| CN111592289A true CN111592289A (en) | 2020-08-28 |
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| CN202010464011.0A Pending CN111592289A (en) | 2020-05-27 | 2020-05-27 | Mesoporous material composite calcium silicate fireproof plate and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112679188A (en) * | 2020-12-28 | 2021-04-20 | 广东雄塑环保板业有限公司 | Termite-resistant calcium silicate board and preparation process thereof |
| CN114751710A (en) * | 2022-04-15 | 2022-07-15 | 山东优纳新材料科技有限公司 | Building insulation board containing mesoporous material |
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| AU3409799A (en) * | 1998-03-10 | 1999-09-27 | Redco S.A. | Gypsum based material, method for making same and fire protection building element comprising same |
| CN108069673A (en) * | 2016-11-17 | 2018-05-25 | 中国科学院过程工程研究所 | A kind of calcium silicates fire-proof plate and preparation method thereof |
| CN108164283A (en) * | 2017-12-28 | 2018-06-15 | 上海宥纳新材料科技有限公司 | A kind of composition for being used to prepare thermal insulation material |
| CN108503317A (en) * | 2018-05-03 | 2018-09-07 | 宁夏大学 | A kind of preparation method of calcium silicate insulation |
| CN109111166A (en) * | 2018-03-23 | 2019-01-01 | 常州优纳新材料科技有限公司 | A kind of concrete composition |
-
2020
- 2020-05-27 CN CN202010464011.0A patent/CN111592289A/en active Pending
Patent Citations (5)
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|---|---|---|---|---|
| AU3409799A (en) * | 1998-03-10 | 1999-09-27 | Redco S.A. | Gypsum based material, method for making same and fire protection building element comprising same |
| CN108069673A (en) * | 2016-11-17 | 2018-05-25 | 中国科学院过程工程研究所 | A kind of calcium silicates fire-proof plate and preparation method thereof |
| CN108164283A (en) * | 2017-12-28 | 2018-06-15 | 上海宥纳新材料科技有限公司 | A kind of composition for being used to prepare thermal insulation material |
| CN109111166A (en) * | 2018-03-23 | 2019-01-01 | 常州优纳新材料科技有限公司 | A kind of concrete composition |
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Non-Patent Citations (2)
| Title |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112679188A (en) * | 2020-12-28 | 2021-04-20 | 广东雄塑环保板业有限公司 | Termite-resistant calcium silicate board and preparation process thereof |
| CN114751710A (en) * | 2022-04-15 | 2022-07-15 | 山东优纳新材料科技有限公司 | Building insulation board containing mesoporous material |
| CN114751710B (en) * | 2022-04-15 | 2022-10-04 | 山东优纳新材料科技有限公司 | Building insulation board containing mesoporous material |
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