CN108623275B - Fireproof plugging material and preparation method thereof - Google Patents
Fireproof plugging material and preparation method thereof Download PDFInfo
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- CN108623275B CN108623275B CN201810481407.9A CN201810481407A CN108623275B CN 108623275 B CN108623275 B CN 108623275B CN 201810481407 A CN201810481407 A CN 201810481407A CN 108623275 B CN108623275 B CN 108623275B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
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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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00663—Uses not provided for elsewhere in C04B2111/00 as filling material for cavities or the like
-
- 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
- C04B2201/50—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)
- Building Environments (AREA)
- Sealing Material Composition (AREA)
- Fireproofing Substances (AREA)
Abstract
The invention discloses a fireproof plugging material and a preparation method thereof, relates to the field of plugging materials, and solves the problems that the compressive strength of the plugging material after curing is overlarge and later-stage disassembly and assembly are difficult in the prior art. The fireproof plugging material comprises the following components in parts by weight: 30-50 parts of gypsum powder; 15-25 parts of argil powder; 15-25 parts of Portland cement; 5-10 parts of perlite powder; 0.1-0.5 part of sodium gluconate. According to the invention, by adjusting the component proportion and adding the perlite powder and the sodium gluconate, the specific gravity of the product is effectively reduced, and the product can be suitable for a light partition wall or a bearing plate and can improve the applicability of the product; the curing speed of the product and the compressive strength index data after curing are more reasonable, and the convenience in replacement and removal is improved.
Description
Technical Field
The invention relates to the field of plugging materials, in particular to a fireproof plugging material and a preparation method thereof.
Background
The fireproof sealing material is used for sealing various openings formed when various penetrations such as cables, air pipes, oil pipes, air pipes and the like pass through the wall (warehouse) wall and the floor (deck) and for fireproof separation of a cable bridge, has a fireproof function and is convenient to replace. According to the composition and performance characteristics, the fireproof material can be divided into inorganic fireproof blocking materials, organic fireproof blocking materials and fireproof bags.
The common plugging material in the prior art comprises the following components in parts by weight: 30-60 parts of gypsum powder; 15-30 parts of argil powder; 15-30 parts of Portland cement.
The plugging material has a large specific gravity of 1.2 × 103kg/m3The light partition wall or the through bearing plate is not suitable for use, and the compressive strength after curing is too high, so that the replacement of the through part is difficult when the through part needs to be disassembled and assembled.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a fireproof plugging material, which is prepared by adding perlite powder and sodium gluconate to reduce the compressive strength after curing, solves the problems and has the advantages of reasonable strength after curing and convenience in later-stage disassembly and assembly.
In order to achieve the first purpose, the invention provides the following technical scheme:
a fireproof plugging material comprises the following components in parts by weight:
30-50 parts of gypsum powder;
15-25 parts of argil powder;
15-25 parts of Portland cement;
5-10 parts of perlite powder;
0.1-0.5 part of sodium gluconate.
By adopting the technical scheme, the gypsum powder is used as a main material, the argil powder is used as a fireproof binder, and the gypsum powder can be sintered after meeting fire, so that the effects of fire resistance and structural strength reinforcement are achieved; the Portland cement is an inorganic gelling agent, can adjust the thickness and the workability of the product when in use, and can increase the compressive strength of the product after being solidified; the perlite powder is a flame-retardant inorganic light filler and is used for reducing the density of the product; the sodium gluconate organic retarder can adjust the initial setting time of the portland cement. By adjusting the component proportion and adding the perlite powder and the sodium gluconate, the specific gravity of the product is effectively reduced, and the product can be suitable for light partition walls or bearing plates and improve the applicability of the product; the curing speed of the product and the compressive strength index data after curing are more reasonable, and the convenience in replacement and removal is improved.
More preferably, the fireproof plugging material further comprises 1-3 parts of mesoporous silica, and inorganic flame retardants are loaded in pores of the mesoporous silica.
By adopting the technical scheme, the compressive strength is favorably reduced after the mesoporous silicon dioxide is added, and meanwhile, the mesoporous silicon dioxide can load an inorganic flame retardant, so that the flame retardant property of the product is enhanced.
More preferably, the inorganic flame retardant is ammonium polyphosphate, and the particle size of the ammonium polyphosphate is smaller than the diameter of the pores of the mesoporous silica.
Through adopting above-mentioned technical scheme, ammonium polyphosphate is heated and is decomposed and generate phosphoric acid and ammonia, plays the effect of diluting, isolated air, can play good fire-retardant effect to cable, the trachea that runs through it.
More preferably, the step of loading ammonium polyphosphate on the mesoporous silica comprises: adding mesoporous silicon dioxide into deionized water to form a suspension, adding ammonium polyphosphate into the suspension to be uniformly dispersed, and then carrying out ultrasonic treatment, suction filtration and drying on the suspension.
By adopting the technical scheme, ultrasonic treatment is adopted after dispersion, on one hand, the speed of ammonium polyphosphate entering the micropores of the mesoporous silicon dioxide is accelerated, on the other hand, the ammonium polyphosphate is uniformly distributed in the micropores of the mesoporous silicon dioxide, and the situation that the micropores of the mesoporous silicon dioxide are blocked by the ammonium polyphosphate in an uneven distribution manner is avoided.
More preferably, the weight ratio of the ammonium polyphosphate to the silicon dioxide is (0.1-0.3): 1.
By adopting the technical scheme, the using amount of the ammonium polyphosphate is controlled, and the problem that the flame-retardant effect is poor due to insufficient ammonium polyphosphate loading amount or the micropores of the mesoporous silica are blocked by too large ammonium polyphosphate loading amount is avoided.
More preferably, the fireproof plugging material further comprises 1-5 parts of hollow glass beads.
By adopting the technical scheme, the hollow glass beads are used as the light filling agent, so that the density of the product is reduced, and the compressive strength of the product after solidification can be reduced.
More preferably, the fireproof plugging material also comprises 0.1-0.5 part of ceramic fiber.
By adopting the technical scheme, the ceramic fiber has light weight, high temperature resistance and good thermal stability, and can lead the plugging material to fall off in a blocky manner when being disassembled, assembled and perforated.
More preferably, the length of the ceramic fiber is 2-4mm, and the diameter is 1-3 um.
By adopting the technical scheme, the compression strength of the product can be increased by too large length and diameter of the ceramic fiber, the length and diameter of the ceramic fiber are too small, the blocking material is difficult to fall off in a blocky manner, and later-period disassembly and assembly are not facilitated, so that the length of the ceramic fiber is preferably 2-4mm, and the diameter of the ceramic fiber is preferably 1-3 um.
The invention also aims to provide a preparation method of the fireproof plugging material, and the fireproof plugging material prepared by the method has the advantages of reasonable strength after curing and convenience for later-stage disassembly and assembly.
In order to achieve the second purpose, the invention provides the following technical scheme:
a preparation method of a fireproof plugging material comprises the following steps:
firstly, adding portland cement into a stirrer, and then adding sodium gluconate for premixing to obtain premix;
step two, adding all the raw materials into a spiral stirrer in the order of perlite powder, gypsum powder, argil powder and premix, and uniformly stirring and mixing;
and step three, after the spiral stirrer stirs for 15 minutes, discharging the bottom material in the spiral stirrer, returning to the spiral stirrer again to continue stirring for 10 minutes, and discharging to obtain the fireproof plugging material.
By adopting the technical scheme, the components are added in proportion and are fully and uniformly stirred, and the construction can be carried out after a proper amount of water is added and mixed when the paint is used.
In summary, compared with the prior art, the invention has the following beneficial effects:
(1) by adding the perlite powder, the hollow glass beads and the ceramic fibers, the compressive strength index data of the solidified fireproof plugging material is more reasonable, and the convenience in replacement and removal is improved;
(2) the mesoporous silica is added, so that the compressive strength is favorably reduced, and meanwhile, the mesoporous silica is adopted to load ammonium polyphosphate, so that the ammonium polyphosphate is heated and decomposed to generate phosphoric acid and ammonia gas when a fire disaster occurs, the effects of diluting and isolating air are achieved, a good flame-retardant effect can be achieved on a cable and a gas pipe penetrating through the mesoporous silica, and the flame-retardant grade reaches V-0 grade;
(3) the fireproof plugging material disclosed by the invention is low in density, and can be suitable for a light partition wall or a through bearing plate, so that the applicability of the product is improved.
Detailed Description
The present invention will be described in detail with reference to examples.
Example 1: the fireproof plugging material comprises the following components in parts by weight as shown in Table 1 and is prepared by the following steps:
firstly, adding portland cement into a stirrer, and then adding sodium gluconate for premixing to obtain premix;
step two, adding all the raw materials into a spiral stirrer in the order of perlite powder, gypsum powder, argil powder and premix, and uniformly stirring and mixing;
and step three, after the spiral stirrer stirs for 15 minutes, discharging the bottom material in the spiral stirrer, returning to the spiral stirrer again to continue stirring for 10 minutes, and discharging to obtain the fireproof plugging material.
Wherein the fineness of the argil powder is 200 meshes, the fineness of the perlite powder is 80 meshes, and the label of the portland cement is 325.
Examples 2 to 5: a fireproof plugging material is different from the fireproof plugging material in example 1 in that the components and the corresponding parts by weight are shown in Table 1.
TABLE 1 Components and parts by weight of examples 1-5
Example 6: the fireproof plugging material is different from the fireproof plugging material in embodiment 1 in that the fireproof plugging material further comprises 1 part of mesoporous silica, and ammonium polyphosphate is loaded in pores of the mesoporous silica;
the mesoporous silica loaded ammonium polyphosphate comprises the following steps: adding mesoporous silica into deionized water to form a suspension, adding ammonium polyphosphate into the suspension to be uniformly dispersed, wherein the weight ratio of the ammonium polyphosphate to the silica is 0.1:1, the micropore diameter of the mesoporous silica is 40nm, and the particle size of the ammonium polyphosphate is 10nm, then carrying out ultrasonic treatment on the mesoporous silica for 10min, carrying out suction filtration, and drying.
And the second step specifically comprises the steps of adding all the raw materials into a spiral stirrer in the order of perlite powder, gypsum powder, argil powder and premix, adding mesoporous silica loaded with ammonium polyphosphate, and uniformly stirring and mixing.
Example 7: the difference between the fireproof plugging material and the fireproof plugging material in the embodiment 6 is that the fireproof plugging material further comprises 2 parts of mesoporous silica.
Example 8: a difference between the fireproof plugging material and the embodiment 6 is that the fireproof plugging material further comprises 3 parts of mesoporous silica.
Example 9: a fire blocking material which differs from example 6 in that the weight ratio of ammonium polyphosphate to silica is 0.2: 1.
Example 10: a fire blocking material which differs from example 6 in that the weight ratio of ammonium polyphosphate to silica is 0.3: 1.
Example 11: a fireproof plugging material, which is different from the fireproof plugging material in the embodiment 6 in that the fireproof plugging material further comprises 1 part of hollow glass beads;
and the second step specifically comprises the steps of adding all the raw materials into a spiral stirrer in the order of perlite powder, gypsum powder, argil powder and premix, adding the mesoporous silica loaded with ammonium polyphosphate and the hollow glass beads, and uniformly stirring and mixing.
Example 12: a fire blocking material, which is different from that in example 11 in that the fire blocking material further comprises 3 parts of hollow glass beads.
Example 13: a fire blocking material, which is different from that in example 11 in that the fire blocking material further comprises 5 parts of hollow glass beads.
Example 14: a fireproof plugging material, which is different from the fireproof plugging material in embodiment 11 in that the fireproof plugging material further comprises 0.1 part of ceramic fiber, wherein the ceramic fiber is 2mm in length and 1um in diameter;
and the second step specifically comprises the steps of adding all the raw materials into a spiral stirrer in the order of perlite powder, gypsum powder, argil powder and premix, adding the mesoporous silica loaded with ammonium polyphosphate, the hollow glass microspheres and the ceramic fibers, and uniformly stirring and mixing.
Example 15: a fire blocking material, which is different from that in example 14 in that the fire blocking material further comprises 0.3 parts of ceramic fiber.
Example 16: a fire blocking material, which is different from that in example 14 in that the fire blocking material further comprises 0.5 parts of ceramic fiber.
Example 17: a fire blocking material, which is different from that in example 14 in that the ceramic fiber has a length of 3mm and a diameter of 2 um.
Example 18: a fireproof plugging material is different from the fireproof plugging material in example 14 in that the length of the ceramic fiber is 4mm, and the diameter of the ceramic fiber is 3 um.
Comparative example 1: a flameproof plugging material, comprising: 40 parts of gypsum powder; 30 parts of argil powder; 30 parts of Portland cement, wherein the preparation method comprises the following steps: mixing Gypsum Fibrosum powder, pottery clay powder, and Portland cement.
Performance testing
Test samples: referring to the GB/23864-2009 fireproof plugging material, the fireproof plugging materials obtained in examples 1 to 18 were prepared into test samples 1 to 18, and the fireproof plugging material obtained in comparative example 1 was prepared into a control sample 1.
The test method comprises the following steps: the density, compressive strength and initial setting time of the test samples 1-18 and the control sample 1 were tested with reference to the standard GB/23864-.
And (3) test results: the test results of the test samples 1 to 18 and the control sample 1 are shown in Table 2. As can be seen from Table 2, the apparent densities of the test samples 1-18 are less than that of the control sample 1, which shows that the density of the fireproof plugging material is reduced by adding perlite powder, hollow glass beads and ceramic fibers, so that the fireproof plugging material can be suitable for light partition walls or bearing plates and the applicability of the product is improved;
the compression strength of the test samples 1-18 is far less than that of the control sample 1, and within a standard range, the compression strength index data of the solidified fireproof plugging material is more reasonable, and the convenience in replacement and removal is improved;
the compressive strength of the test samples 1-18 is greater than that of the control sample 1, and within the standard range, the invention is proved to improve the convenience of grouting construction operation by increasing the retarder sodium gluconate to properly delay the initial setting time and the curing speed of the product.
TABLE 2 test results of test samples 1 to 18 and control sample 1
| Sample numbering | Apparent density/(kg/m)3) | Compressive strength/MPa | Initial setting time/min |
| Standard index | ≤2.0×103 | 0.8≤R≤6.5 | 10≤t≤45 |
| Test sample 1 | 0.80×103 | 2.00 | 26.0 |
| Test sample 2 | 0.85×103 | 2.10 | 25.0 |
| Test sample 3 | 0.88×103 | 2.10 | 24.0 |
| Test sample 4 | 0.90×103 | 2.20 | 23.0 |
| Test sample 5 | 0.92×103 | 2.20 | 22.0 |
| Test sample 6 | 0.83×103 | 1.85 | 25.0 |
| Test sample 7 | 0.86×103 | 1.82 | 24.0 |
| Test sample 8 | 0.90×103 | 1.80 | 23.0 |
| Test sample 9 | 0.84×103 | 1.85 | 25.0 |
| Test sample 10 | 0.84×103 | 1.85 | 25.0 |
| Test sample 11 | 0.78×103 | 1.82 | 25.0 |
| Test sample 12 | 0.76×103 | 1.82 | 24.0 |
| Test sample 13 | 0.75×103 | 1.80 | 24.0 |
| Test sample 14 | 0.75×103 | 1.82 | 22.0 |
| Test sample 15 | 0.74×103 | 1.81 | 21.0 |
| Test sample 16 | 0.72×103 | 1.82 | 21.0 |
| Test sample 17 | 0.72×103 | 1.85 | 21.0 |
| Test sample 18 | 0.72×103 | 1.87 | 21.0 |
| Control sample 1 | 1.20×103 | 5.50 | 12.0 |
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (2)
1. The fireproof plugging material is characterized by comprising the following components in parts by weight:
30-50 parts of gypsum powder;
15-25 parts of argil powder;
15-25 parts of Portland cement;
5-10 parts of perlite powder;
0.1-0.5 part of sodium gluconate;
1-5 parts of hollow glass beads;
0.1-0.5 part of ceramic fiber;
the length of the ceramic fiber is 2-4mm, and the diameter is 1-3 um;
1-3 parts of mesoporous silica, wherein inorganic flame retardant is loaded in pores of the mesoporous silica, the inorganic flame retardant is ammonium polyphosphate, and the step of loading the ammonium polyphosphate on the mesoporous silica comprises the following steps: adding mesoporous silica into deionized water to form a suspension, adding ammonium polyphosphate into the suspension to be uniformly dispersed, then carrying out ultrasonic treatment, carrying out suction filtration and drying on the suspension to obtain the mesoporous silica gel, wherein the weight ratio of the ammonium polyphosphate to the silica is (0.1-0.3): 1.
2. The preparation method of the fireproof plugging material according to claim 1, comprising the following steps:
firstly, adding portland cement into a stirrer, and then adding sodium gluconate for premixing to obtain premix;
step two, adding all the raw materials into a spiral stirrer in the order of perlite powder, gypsum powder, argil powder and premix, adding the mesoporous silica loaded with ammonium polyphosphate, the hollow glass microspheres and the ceramic fibers, and uniformly stirring and mixing;
and step three, after the spiral stirrer stirs for 15 minutes, discharging the bottom material in the spiral stirrer, returning to the spiral stirrer again to continue stirring for 10 minutes, and discharging to obtain the fireproof plugging material.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101353261A (en) * | 2008-09-01 | 2009-01-28 | 江苏省一夫新材料科技有限公司 | Waterproof fireproofing inorganic plugging material |
| CN101585689A (en) * | 2008-12-23 | 2009-11-25 | 海龙艾默生（镇江）能源科技有限公司 | Fire protection plaster and preparation method thereof |
| CN102584108A (en) * | 2011-11-30 | 2012-07-18 | 江苏欣安新材料技术有限公司 | Fireproofing sealing material |
| CN102643655A (en) * | 2012-04-16 | 2012-08-22 | 中南林业科技大学 | Method for preparing mesoporous silica/ammonium polyphosphate compound fire retardant |
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2018
- 2018-05-18 CN CN201810481407.9A patent/CN108623275B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101353261A (en) * | 2008-09-01 | 2009-01-28 | 江苏省一夫新材料科技有限公司 | Waterproof fireproofing inorganic plugging material |
| CN101585689A (en) * | 2008-12-23 | 2009-11-25 | 海龙艾默生（镇江）能源科技有限公司 | Fire protection plaster and preparation method thereof |
| CN102584108A (en) * | 2011-11-30 | 2012-07-18 | 江苏欣安新材料技术有限公司 | Fireproofing sealing material |
| CN102643655A (en) * | 2012-04-16 | 2012-08-22 | 中南林业科技大学 | Method for preparing mesoporous silica/ammonium polyphosphate compound fire retardant |
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| Title |
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| "介孔SiO2-APP复合阻燃剂的制备及其对木材的阻燃抑烟作用";夏燎原等;《中南林业科技大学学报》;20120228;第32卷(第1期);第9页摘要、第10页"1.3介孔SiO2复合阻燃剂的制备" * |
| "聚磷酸铵的改性及应用研究进展";金东等;《精细与专用化学品》;20161121;第24卷(第11期);第47-50页 * |
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