CN112390610B - Flame-retardant ceiling and preparation method thereof - Google Patents
Flame-retardant ceiling and preparation method thereof Download PDFInfo
- Publication number
- CN112390610B CN112390610B CN202110068723.5A CN202110068723A CN112390610B CN 112390610 B CN112390610 B CN 112390610B CN 202110068723 A CN202110068723 A CN 202110068723A CN 112390610 B CN112390610 B CN 112390610B
- Authority
- CN
- China
- Prior art keywords
- parts
- phosphogypsum
- modified
- aluminum hydroxide
- flame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- C04B28/142—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 containing synthetic or waste calcium sulfate cements
- C04B28/144—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 containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being a flue gas desulfurization product
-
- 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
- C04B11/00—Calcium sulfate cements
- C04B11/007—After-treatment of the dehydration products, e.g. aging, stabilisation
-
- 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
- C04B11/00—Calcium sulfate cements
- C04B11/02—Methods and apparatus for dehydrating gypsum
-
- 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
- C04B11/00—Calcium sulfate cements
- C04B11/26—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/12—Multiple coating or impregnating
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
- E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
- E04F2290/045—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against fire
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Civil Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a flame-retardant ceiling and a preparation method thereof, wherein the flame-retardant ceiling is prepared from the following raw materials: modified phosphogypsum, desulfurized gypsum, aluminum silicate, modified aluminum hydroxide, barium stearate, fly ash, talcum powder, sodium tripolyphosphate, calcium borate, sodium polyacrylate and deionized water. The flame-retardant ceiling board has good flame retardant property and compressive strength; the modified phosphogypsum with excellent performance is obtained by modifying the phosphogypsum, the modified phosphogypsum has a compact structure, a large amount of soluble phosphorus, soluble fluorine and organic impurities in the phosphogypsum are removed in the modification process, the intermolecular acting force of the phosphogypsum is improved, so that the modified phosphogypsum with the remarkably improved flame retardant performance and compressive strength is obtained, the mass accumulation of the phosphogypsum can be relieved by using the phosphogypsum, and the pollution of the phosphogypsum to the environment is reduced.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a flame-retardant ceiling and a preparation method thereof.
Background
Phosphogypsum (CaSO 4.2H2O) is industrial solid waste generated in the production process of wet-process phosphoric acid, has the largest discharge amount in industrial byproduct gypsum waste residue, and is a renewable gypsum resource. In the process of wet-process phosphoric acid production in the phosphorus chemical industry, 4.5-5.5 t of phosphogypsum is produced every 1t of wet-process phosphoric acid. The large amount of production, discharge and stockpiling of the phosphogypsum occupy a large amount of land, increase the investment and operation and maintenance cost, and bring about the problems of serious safety, ecological environment pollution and the like. The treatment and the recycling comprehensive utilization of the phosphogypsum change waste into valuable, and have great significance.
Along with the increasing fire-fighting requirement of decoration engineering, higher requirements are also put forward on the combustion grade of interior decoration materials, the low flame retardant property of the wooden decoration panels restricts the development of the wooden decoration panels, the application channels can be better widened only by improving the flame retardant property of the wooden decoration panels, in order to avoid more fires, a new fire-fighting law is stipulated, the flame retardant grade of the decoration materials in the building decoration engineering must meet the fire acceptance standard requirements, in order to meet the application requirements of the decoration materials, the wooden decoration panels are the mainstream bulk materials of interior decoration, are indispensable, must overcome the flame retardant property, and expand the application range.
Disclosure of Invention
The invention provides a flame-retardant ceiling and a preparation method thereof.
The invention adopts the following technical scheme for solving the technical problems:
a flame-retardant ceiling is prepared from the following raw materials in parts by weight: 25-35 parts of modified phosphogypsum, 10-18 parts of desulfurized gypsum, 7-12 parts of aluminum silicate, 5-10 parts of modified aluminum hydroxide, 3-6 parts of barium stearate, 2-5 parts of fly ash, 2-5 parts of talcum powder, 2.5-5 parts of sodium tripolyphosphate, 0.6-2 parts of calcium borate, 0.5-1.5 parts of sodium polyacrylate and 15-30 parts of deionized water.
As a preferable scheme, the flame-retardant ceiling is prepared from the following raw materials in parts by weight: 28-35 parts of modified phosphogypsum, 12-18 parts of desulfurized gypsum, 8-12 parts of aluminum silicate, 6-10 parts of modified aluminum hydroxide, 3-5 parts of barium stearate, 3-5 parts of fly ash, 2-4 parts of talcum powder, 2.5-4 parts of sodium tripolyphosphate, 1-2 parts of calcium borate, 0.5-1.2 parts of sodium polyacrylate and 15-30 parts of deionized water.
As a most preferable scheme, the flame-retardant ceiling is prepared from the following raw materials in parts by weight: 32 parts of modified phosphogypsum, 14 parts of desulfurized gypsum, 10 parts of aluminum silicate, 8 parts of modified aluminum hydroxide, 4.2 parts of barium stearate, 3.5 parts of fly ash, 3 parts of talcum powder, 3 parts of sodium tripolyphosphate, 1.5 parts of calcium borate, 0.8 part of sodium polyacrylate and 20 parts of deionized water.
As a preferred scheme, the preparation method of the modified phosphogypsum comprises the following steps:
calcining phosphogypsum at 175-190 ℃ for 1.5-3 h, and cooling after calcining to obtain calcined phosphogypsum; and adding 10-20 parts of calcined phosphogypsum and 30-50 parts of modifier into a conical flask, oscillating for 30-45 min at the rotating speed of 80-120 rpm by using an oscillator, filtering and drying to obtain the modified phosphogypsum.
The modified phosphogypsum has a compact structure, a large amount of soluble phosphorus, soluble fluorine and organic impurities in the phosphogypsum are removed in the modification process, and the intermolecular acting force of the phosphogypsum is improved, so that the modified phosphogypsum with the obviously improved flame retardant property and compressive strength is obtained.
As a preferable scheme, the modifier is prepared from 1.2-2 parts of a silane coupling agent KH570, 2.5-4 parts of stearic acid and 90-100 parts of deionized water.
The modifier can effectively remove impurities after calcination, can improve the interfacial compatibility of the phosphogypsum, and can not cause agglomeration of the phosphogypsum, thereby obviously improving the flame retardant property and the compressive strength.
Preferably, the modifier is prepared from 1.8 parts of silane coupling agent KH570, 3.5 parts of stearic acid and 94.7 parts of deionized water.
As a preferable scheme, the preparation method of the modified aluminum hydroxide comprises the following steps:
adding 10-20 parts of aluminum hydroxide into 80-90 parts of deionized water, uniformly stirring to obtain a suspension, stirring 1-2 parts of talcum powder and 0.8-1.5 parts of tartaric acid at 60-80 ℃ at 200-300 rpm for 60-100 min, filtering, and drying to obtain pretreated aluminum hydroxide;
and adding 8-12 parts of pretreated aluminum hydroxide into 30-50 parts of modifier, stirring at 200-300 rpm for 40-80 min, filtering, and drying to obtain the modified aluminum hydroxide.
According to the invention, the aluminum hydroxide is wrapped firstly, then is treated by the modifier to obtain the modified aluminum hydroxide, the talcum powder and the aluminum hydroxide are compounded, and then are treated by the modifier to form a compact flame-retardant layer structure, so that two flame retardants can play a synergistic effect, and the interface bonding force of the modified aluminum hydroxide in a formula system is enhanced.
As a preferred scheme, the modifier is prepared from 0.8-1.5 parts of Tween 80, 1.2-2 parts of a silane coupling agent KH151, 2-5 parts of sodium dodecyl benzene sulfonate and 90-100 parts of deionized water.
As a preferred scheme, the modifier is prepared from 1 part of Tween 80, 1.5 parts of silane coupling agent KH151, 2.5 parts of sodium dodecyl benzene sulfonate and 95 parts of deionized water.
The invention also provides a preparation method of the flame-retardant ceiling, which comprises the following steps:
(1) adding aluminum silicate, modified aluminum hydroxide, barium stearate, fly ash, talcum powder, sodium tripolyphosphate, calcium borate, sodium polyacrylate and deionized water into a stirrer, and uniformly stirring;
(2) adding the modified phosphogypsum and the desulfurized gypsum, and uniformly stirring to obtain slurry;
(3) and pouring the slurry into a mold, and demolding after 60-100 min to obtain the flame-retardant ceiling.
The invention has the beneficial effects that: (1) the flame-retardant ceiling board has good flame retardant property and compressive strength; (2) according to the flame-retardant ceiling, the phosphogypsum is modified, so that the modified phosphogypsum with excellent performance is obtained, the modified phosphogypsum has a compact structure, a large amount of soluble phosphorus, soluble fluorine and organic impurities in the phosphogypsum are removed in the modification process, the intermolecular acting force of the phosphogypsum is improved, the modified phosphogypsum with the flame-retardant performance and the compressive strength remarkably improved is obtained, the mass accumulation of the phosphogypsum can be relieved by using the phosphogypsum, and the pollution of the phosphogypsum to the environment is reduced; (3) according to the invention, the aluminum hydroxide is wrapped firstly, then is treated by the modifier to obtain the modified aluminum hydroxide, the talcum powder and the aluminum hydroxide are compounded, and then are treated by the modifier to form a compact flame-retardant layer structure, so that two flame retardants can play a synergistic effect, and the interface bonding force of the modified aluminum hydroxide in a formula system is enhanced.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the present invention, the "parts" are all parts by weight unless otherwise specified.
The raw materials of the invention are self-made except the modified phosphogypsum and the modified aluminum hydroxide, and the raw materials are all available on the market.
Example 1
The flame-retardant ceiling is prepared from the following raw materials in parts by weight: 32 parts of modified phosphogypsum, 14 parts of desulfurized gypsum, 10 parts of aluminum silicate, 8 parts of modified aluminum hydroxide, 4.2 parts of barium stearate, 3.5 parts of fly ash, 3 parts of talcum powder, 3 parts of sodium tripolyphosphate, 1.5 parts of calcium borate, 0.8 part of sodium polyacrylate and 20 parts of deionized water.
The preparation method of the modified phosphogypsum comprises the following steps:
calcining the phosphogypsum at 185 ℃ for 2h, and cooling to obtain calcined phosphogypsum; and adding 12 parts of calcined phosphogypsum and 38 parts of modifier into a conical flask, oscillating for 35min at the rotating speed of 100rpm by using an oscillator, filtering and drying to obtain the modified phosphogypsum.
The modifier is prepared from 1.8 parts of silane coupling agent KH570, 3.5 parts of stearic acid and 94.7 parts of deionized water.
The preparation method of the modified aluminum hydroxide comprises the following steps:
adding 15 parts of aluminum hydroxide into 82 parts of deionized water, uniformly stirring to obtain a suspension, stirring 1.8 parts of talcum powder and 1.2 parts of tartaric acid at 65 ℃ at 250rpm for 70min, filtering, and drying to obtain pretreated aluminum hydroxide;
and adding 10 parts of pretreated aluminum hydroxide into 40 parts of modifier, stirring at 250rpm for 50min, filtering, and drying to obtain the modified aluminum hydroxide.
The modifier is prepared from 1 part of tween 80, 1.5 parts of silane coupling agent KH151, 2.5 parts of sodium dodecyl benzene sulfonate and 95 parts of deionized water.
The preparation method of the flame-retardant ceiling comprises the following steps:
(1) adding aluminum silicate, modified aluminum hydroxide, barium stearate, fly ash, talcum powder, sodium tripolyphosphate, calcium borate, sodium polyacrylate and deionized water into a stirrer, and uniformly stirring;
(2) adding the modified phosphogypsum and the desulfurized gypsum, and uniformly stirring to obtain slurry;
(3) and pouring the slurry into a mold, and demolding after 90min to obtain the flame-retardant ceiling.
Example 2
A flame-retardant ceiling is prepared from the following raw materials in parts by weight: 25 parts of modified phosphogypsum, 10 parts of desulfurized gypsum, 7 parts of aluminum silicate, 5 parts of modified aluminum hydroxide, 3 parts of barium stearate, 2 parts of fly ash, 2 parts of talcum powder, 2.5 parts of sodium tripolyphosphate, 0.6 part of calcium borate, 0.5 part of sodium polyacrylate and 15 parts of deionized water.
The preparation method of the modified phosphogypsum comprises the following steps:
calcining the phosphogypsum at 185 ℃ for 2h, and cooling to obtain calcined phosphogypsum; and adding 12 parts of calcined phosphogypsum and 38 parts of modifier into a conical flask, oscillating for 35min at the rotating speed of 100rpm by using an oscillator, filtering and drying to obtain the modified phosphogypsum.
The modifier is prepared from 1.8 parts of silane coupling agent KH570, 3.5 parts of stearic acid and 94.7 parts of deionized water.
The preparation method of the modified aluminum hydroxide comprises the following steps:
adding 15 parts of aluminum hydroxide into 82 parts of deionized water, uniformly stirring to obtain a suspension, stirring 1.8 parts of talcum powder and 1.2 parts of tartaric acid at 65 ℃ at 250rpm for 70min, filtering, and drying to obtain pretreated aluminum hydroxide;
and adding 10 parts of pretreated aluminum hydroxide into 40 parts of modifier, stirring at 250rpm for 50min, filtering, and drying to obtain the modified aluminum hydroxide.
The modifier is prepared from 1 part of tween 80, 1.5 parts of silane coupling agent KH151, 2.5 parts of sodium dodecyl benzene sulfonate and 95 parts of deionized water.
The preparation method of the flame-retardant ceiling comprises the following steps:
(1) adding aluminum silicate, modified aluminum hydroxide, barium stearate, fly ash, talcum powder, sodium tripolyphosphate, calcium borate, sodium polyacrylate and deionized water into a stirrer, and uniformly stirring;
(2) adding the modified phosphogypsum and the desulfurized gypsum, and uniformly stirring to obtain slurry;
(3) and pouring the slurry into a mold, and demolding after 90min to obtain the flame-retardant ceiling.
Example 3
A flame-retardant ceiling is prepared from the following raw materials in parts by weight: 30 parts of modified phosphogypsum, 18 parts of desulfurized gypsum, 12 parts of aluminum silicate, 8 parts of modified aluminum hydroxide, 6 parts of barium stearate, 5 parts of fly ash, 5 parts of talcum powder, 5 parts of sodium tripolyphosphate, 2 parts of calcium borate, 1.5 parts of sodium polyacrylate and 30 parts of deionized water.
The preparation method of the modified phosphogypsum comprises the following steps:
calcining the phosphogypsum at 185 ℃ for 2h, and cooling to obtain calcined phosphogypsum; and adding 12 parts of calcined phosphogypsum and 38 parts of modifier into a conical flask, oscillating for 35min at the rotating speed of 100rpm by using an oscillator, filtering and drying to obtain the modified phosphogypsum.
The modifier is prepared from 1.8 parts of silane coupling agent KH570, 3.5 parts of stearic acid and 94.7 parts of deionized water.
The preparation method of the modified aluminum hydroxide comprises the following steps:
adding 15 parts of aluminum hydroxide into 82 parts of deionized water, uniformly stirring to obtain a suspension, stirring 1.8 parts of talcum powder and 1.2 parts of tartaric acid at 65 ℃ at 250rpm for 70min, filtering, and drying to obtain pretreated aluminum hydroxide;
and adding 10 parts of pretreated aluminum hydroxide into 40 parts of modifier, stirring at 250rpm for 50min, filtering, and drying to obtain the modified aluminum hydroxide.
The modifier is prepared from 1 part of tween 80, 1.5 parts of silane coupling agent KH151, 2.5 parts of sodium dodecyl benzene sulfonate and 95 parts of deionized water.
The preparation method of the flame-retardant ceiling comprises the following steps:
(1) adding aluminum silicate, modified aluminum hydroxide, barium stearate, fly ash, talcum powder, sodium tripolyphosphate, calcium borate, sodium polyacrylate and deionized water into a stirrer, and uniformly stirring;
(2) adding the modified phosphogypsum and the desulfurized gypsum, and uniformly stirring to obtain slurry;
(3) and pouring the slurry into a mold, and demolding after 90min to obtain the flame-retardant ceiling.
Example 4
A flame-retardant ceiling is prepared from the following raw materials in parts by weight: 28 parts of modified phosphogypsum, 16 parts of desulfurized gypsum, 10 parts of aluminum silicate, 7 parts of modified aluminum hydroxide, 5 parts of barium stearate, 4 parts of fly ash, 3.5 parts of talcum powder, 3.5 parts of sodium tripolyphosphate, 1 part of calcium borate, 1 part of sodium polyacrylate and 21 parts of deionized water.
The preparation method of the modified phosphogypsum comprises the following steps:
calcining the phosphogypsum at 185 ℃ for 2h, and cooling to obtain calcined phosphogypsum; and adding 12 parts of calcined phosphogypsum and 38 parts of modifier into a conical flask, oscillating for 35min at the rotating speed of 100rpm by using an oscillator, filtering and drying to obtain the modified phosphogypsum.
The modifier is prepared from 1.8 parts of silane coupling agent KH570, 3.5 parts of stearic acid and 94.7 parts of deionized water.
The preparation method of the modified aluminum hydroxide comprises the following steps:
adding 15 parts of aluminum hydroxide into 82 parts of deionized water, uniformly stirring to obtain a suspension, stirring 1.8 parts of talcum powder and 1.2 parts of tartaric acid at 65 ℃ at 250rpm for 70min, filtering, and drying to obtain pretreated aluminum hydroxide;
and adding 10 parts of pretreated aluminum hydroxide into 40 parts of modifier, stirring at 250rpm for 50min, filtering, and drying to obtain the modified aluminum hydroxide.
The modifier is prepared from 1 part of tween 80, 1.5 parts of silane coupling agent KH151, 2.5 parts of sodium dodecyl benzene sulfonate and 95 parts of deionized water.
The preparation method of the flame-retardant ceiling comprises the following steps:
(1) adding aluminum silicate, modified aluminum hydroxide, barium stearate, fly ash, talcum powder, sodium tripolyphosphate, calcium borate, sodium polyacrylate and deionized water into a stirrer, and uniformly stirring;
(2) adding the modified phosphogypsum and the desulfurized gypsum, and uniformly stirring to obtain slurry;
(3) and pouring the slurry into a mold, and demolding after 90min to obtain the flame-retardant ceiling.
Comparative example 1
Comparative example 1 differs from example 1 in that comparative example 1 does not contain modified phosphogypsum, the rest being the same.
Comparative example 2
Comparative example 2 differs from example 1 in that comparative example 2 replaces the modified phosphogypsum with phosphogypsum, the rest being the same.
Comparative example 3
Comparative example 3 differs from example 1 in that the modified phosphogypsum of comparative example 3 is prepared by a process different from that of example 1, all the other things being equal, i.e. in this comparative example, the modified phosphogypsum has not been subjected to a calcination treatment.
The preparation method of the modified phosphogypsum comprises the following steps:
adding 12 parts of phosphogypsum and 38 parts of modifier into a conical flask, oscillating for 35min at the rotating speed of 100rpm by using an oscillator, filtering and drying to obtain the modified phosphogypsum.
The modifier is prepared from 1.8 parts of silane coupling agent KH570, 3.5 parts of stearic acid and 94.7 parts of deionized water.
Comparative example 4
Comparative example 4 differs from example 1 in that the process for the preparation of modified phosphogypsum described in comparative example 4 differs from example 1, all the other things being equal, i.e. in this comparative example, the modifier used is different in the process for the preparation of modified phosphogypsum.
The preparation method of the modified phosphogypsum comprises the following steps:
calcining the phosphogypsum at 185 ℃ for 2h, and cooling to obtain calcined phosphogypsum; and adding 12 parts of calcined phosphogypsum and 38 parts of modifier into a conical flask, oscillating for 35min at the rotating speed of 100rpm by using an oscillator, filtering and drying to obtain the modified phosphogypsum.
The modifier is prepared from 1.8 parts of silane coupling agent KH550 and 98.2 parts of deionized water.
Comparative example 5
Comparative example 5 differs from example 1 in that comparative example 5 does not contain the modified aluminum hydroxide, and the other is the same.
Comparative example 6
Comparative example 6 is different from example 1 in that comparative example 6 replaces the modified aluminum hydroxide with aluminum hydroxide, and the others are the same.
Comparative example 7
Comparative example 7 is different from example 1 in that the modified aluminum hydroxide was prepared by a method different from that of example 1, and the same thing applies, namely, in this comparative example, the modified aluminum hydroxide was prepared by a method different from that of example 1.
The preparation method of the modified aluminum hydroxide comprises the following steps:
adding 15 parts of aluminum hydroxide into 82 parts of deionized water, uniformly stirring to obtain a suspension, stirring 1.8 parts of talcum powder and 1.2 parts of tartaric acid at 65 ℃ at 250rpm for 70min, filtering, and drying to obtain pretreated aluminum hydroxide;
and adding 10 parts of pretreated aluminum hydroxide into 40 parts of modifier, stirring at 250rpm for 50min, filtering, and drying to obtain the modified aluminum hydroxide.
The modifier is prepared from 1.5 parts of silane coupling agent KH550 and 98.5 parts of deionized water.
To further demonstrate the effect of the present invention, the following test methods were provided:
1. the flame retardant ceiling boards described in examples 1 to 4 and comparative examples 1 to 7 were manufactured to have dimensions of 10mm × 40mm × 120mm for testing, and the compressive strength was tested: the compression strength value of the gypsum board is tested by using an EHC-1100 full-automatic compression tester, and the test result is shown in Table 1.
2. The oxygen indexes of the flame-retardant ceiling tiles described in examples 1 to 4 and comparative examples 1 to 7 are tested according to the method described in GB/T2406.2-2009, and the test results are shown in Table 1.
Table 1 results of performance testing
As can be seen from table 1, the flame retardant ceiling tile of the present invention has good flame retardant properties and compressive strength.
Comparative examples 1-4 show that the flame retardant performance and compressive strength can be affected by the proportion of different flame retardant ceilings.
Compared with the comparative examples 1 and 2, the modified phosphogypsum prepared by the method can obviously improve the flame retardant property and the compressive strength.
Compared with the comparative examples 3 and 4, the preparation method of the modified phosphogypsum can obviously improve the flame retardant property and the compressive strength; when the preparation method is replaced, the flame retardant property and compressive strength are remarkably reduced.
Comparing example 1 with comparative examples 5 and 6, it can be seen that the modified aluminum hydroxide prepared by the invention can significantly improve the flame retardant property and compressive strength.
Comparing example 1 with comparative example 7, it can be known that the flame retardant property and compressive strength can be significantly improved by adopting the preparation method of the modified aluminum hydroxide; when the preparation method is replaced, the flame retardant property and compressive strength are remarkably reduced.
In light of the foregoing description of preferred embodiments according to the invention, it is clear that many changes and modifications can be made by the person skilled in the art without departing from the scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. The flame-retardant ceiling is characterized by being prepared from the following raw materials in parts by weight: 25-35 parts of modified phosphogypsum, 10-18 parts of desulfurized gypsum, 7-12 parts of aluminum silicate, 5-10 parts of modified aluminum hydroxide, 3-6 parts of barium stearate, 2-5 parts of fly ash, 2-5 parts of talcum powder, 2.5-5 parts of sodium tripolyphosphate, 0.6-2 parts of calcium borate, 0.5-1.5 parts of sodium polyacrylate and 15-30 parts of deionized water;
the preparation method of the modified phosphogypsum comprises the following steps: calcining phosphogypsum at 175-190 ℃ for 1.5-3 h, and cooling after calcining to obtain calcined phosphogypsum; adding 10-20 parts of calcined phosphogypsum and 30-50 parts of modifier into a conical flask, oscillating for 30-45 min at the rotating speed of 80-120 rpm by using an oscillator, filtering and drying to obtain modified phosphogypsum;
the modifier used for the modified phosphogypsum is prepared from 1.2-2 parts of silane coupling agent KH570, 2.5-4 parts of stearic acid and 90-100 parts of deionized water;
the preparation method of the modified aluminum hydroxide comprises the following steps:
adding 10-20 parts of aluminum hydroxide into 80-90 parts of deionized water, uniformly stirring to obtain a suspension, stirring 1-2 parts of talcum powder and 0.8-1.5 parts of tartaric acid at 60-80 ℃ at 200-300 rpm for 60-100 min, filtering, and drying to obtain pretreated aluminum hydroxide; adding 8-12 parts of pretreated aluminum hydroxide into 30-50 parts of modifier, stirring at 200-300 rpm for 40-80 min, filtering, and drying to obtain modified aluminum hydroxide;
the modifier for modifying the aluminum hydroxide is prepared from 0.8-1.5 parts of Tween 80, 1.2-2 parts of a silane coupling agent KH151, 2-5 parts of sodium dodecyl benzene sulfonate and 90-100 parts of deionized water;
the parts are all parts by weight.
2. The flame retardant ceiling tile according to claim 1, wherein the flame retardant ceiling tile is made from the following raw materials in parts by weight: 28-35 parts of modified phosphogypsum, 12-18 parts of desulfurized gypsum, 8-12 parts of aluminum silicate, 6-10 parts of modified aluminum hydroxide, 3-5 parts of barium stearate, 3-5 parts of fly ash, 2-4 parts of talcum powder, 2.5-4 parts of sodium tripolyphosphate, 1-2 parts of calcium borate, 0.5-1.2 parts of sodium polyacrylate and 15-30 parts of deionized water.
3. The flame retardant ceiling tile according to claim 1, wherein the flame retardant ceiling tile is made from the following raw materials in parts by weight: 32 parts of modified phosphogypsum, 14 parts of desulfurized gypsum, 10 parts of aluminum silicate, 8 parts of modified aluminum hydroxide, 4.2 parts of barium stearate, 3.5 parts of fly ash, 3 parts of talcum powder, 3 parts of sodium tripolyphosphate, 1.5 parts of calcium borate, 0.8 part of sodium polyacrylate and 20 parts of deionized water.
4. The flame-retardant ceiling tile as recited in claim 1, wherein the modifier used in the modified phosphogypsum is prepared from 1.8 parts by weight of silane coupling agent KH570, 3.5 parts by weight of stearic acid and 94.7 parts by weight of deionized water.
5. The flame-retardant ceiling board according to claim 1, wherein the modifier used for modifying the aluminum hydroxide is prepared from 1 part of tween 80, 1.5 parts of silane coupling agent KH151, 2.5 parts of sodium dodecyl benzene sulfonate and 95 parts of deionized water, and the parts are all parts by weight.
6. The method for manufacturing a flame retardant ceiling tile according to any one of claims 1 to 5, comprising the steps of:
(1) adding aluminum silicate, modified aluminum hydroxide, barium stearate, fly ash, talcum powder, sodium tripolyphosphate, calcium borate, sodium polyacrylate and deionized water into a stirrer, and uniformly stirring;
(2) adding the modified phosphogypsum and the desulfurized gypsum, and uniformly stirring to obtain slurry;
(3) and pouring the slurry into a mold, and demolding after 60-100 min to obtain the flame-retardant ceiling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110068723.5A CN112390610B (en) | 2021-01-19 | 2021-01-19 | Flame-retardant ceiling and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110068723.5A CN112390610B (en) | 2021-01-19 | 2021-01-19 | Flame-retardant ceiling and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112390610A CN112390610A (en) | 2021-02-23 |
| CN112390610B true CN112390610B (en) | 2021-06-22 |
Family
ID=74625271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110068723.5A Active CN112390610B (en) | 2021-01-19 | 2021-01-19 | Flame-retardant ceiling and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112390610B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113321850B (en) * | 2021-06-21 | 2022-10-11 | 山东泰星新材料股份有限公司 | Ethylene-vinyl acetate halogen-free flame retardant and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050079438A (en) * | 2004-02-05 | 2005-08-10 | 최준한 | Incombustibility composition for a fire door/wall, incombustibility fire door/wall using the same and method for preparing fire door/wall |
| CN103523814A (en) * | 2013-09-18 | 2014-01-22 | 西南科技大学 | Gypsum abnormity powder preparation and modification integrated method in normal-pressure open system |
| CN106278089A (en) * | 2016-08-01 | 2017-01-04 | 太仓顺如成建筑材料有限公司 | A kind of novel heat insulation flame retardant building material |
| CN107488322A (en) * | 2017-08-07 | 2017-12-19 | 湖州同泰新材料有限公司 | A kind of preparation method of aluminium hydroxide fire retardant |
| CN109694098A (en) * | 2017-10-23 | 2019-04-30 | 北新集团建材股份有限公司 | Ardealite preprocess method and ardealite Thistle board and preparation method thereof |
| CN111592691A (en) * | 2020-05-25 | 2020-08-28 | 贵州利东环保科技有限公司 | Phosphogypsum filled plastic modified particle and preparation method thereof |
-
2021
- 2021-01-19 CN CN202110068723.5A patent/CN112390610B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050079438A (en) * | 2004-02-05 | 2005-08-10 | 최준한 | Incombustibility composition for a fire door/wall, incombustibility fire door/wall using the same and method for preparing fire door/wall |
| CN103523814A (en) * | 2013-09-18 | 2014-01-22 | 西南科技大学 | Gypsum abnormity powder preparation and modification integrated method in normal-pressure open system |
| CN106278089A (en) * | 2016-08-01 | 2017-01-04 | 太仓顺如成建筑材料有限公司 | A kind of novel heat insulation flame retardant building material |
| CN107488322A (en) * | 2017-08-07 | 2017-12-19 | 湖州同泰新材料有限公司 | A kind of preparation method of aluminium hydroxide fire retardant |
| CN109694098A (en) * | 2017-10-23 | 2019-04-30 | 北新集团建材股份有限公司 | Ardealite preprocess method and ardealite Thistle board and preparation method thereof |
| CN111592691A (en) * | 2020-05-25 | 2020-08-28 | 贵州利东环保科技有限公司 | Phosphogypsum filled plastic modified particle and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112390610A (en) | 2021-02-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110642585B (en) | Aerated concrete block and preparation process thereof | |
| CN113264750B (en) | Fireproof plugging material and preparation method thereof | |
| CN102875073B (en) | Aerated brick | |
| CN104478255A (en) | Magnesium oxysulfate cement containing magnesium oxide desulfurization waste liquor and preparation method thereof | |
| CN103265263A (en) | Magnesium oxysulfate cement and preparation method thereof | |
| CN101311337A (en) | Process for preparing calcium sulphate whiskers by using flue gas desulfurization gypsum | |
| CN102875183A (en) | Preparation process for autoclaved curing aerated brick | |
| CN105384403A (en) | Composite floor tiles having good stain resistance capacity | |
| CN112390610B (en) | Flame-retardant ceiling and preparation method thereof | |
| CN105645897A (en) | Green and environment-friendly baking-free brick and preparation method thereof | |
| CN104291761B (en) | Antique Imitation Tiles and application thereof | |
| CN107285688A (en) | One kind is without asbestos alkaline residue calcium silicate board and its production method | |
| KR101368979B1 (en) | Bank materials manufacturing method using polysilicon sludge hardener composition | |
| CN104211436A (en) | Fly ash aerated concrete block added with magnesium oxide and magnesium chloride | |
| CN103641425A (en) | Energy-saving, fireproof and crack-resistant polyphenyl granule mortar for construction | |
| CN103896554B (en) | A kind of with dolomite mine tailing and iron tailings steam-pressing brisk as primary raw material and preparation method thereof | |
| CN102910888A (en) | Mixed material for filling mine roadway | |
| CN105481303B (en) | It is made based on alkaline residue non-burning brick and preparation method thereof | |
| CN112390611B (en) | High-strength sound-absorbing ceiling and preparation method thereof | |
| CN103524058A (en) | Treating method for steel slag stability | |
| CN112608120B (en) | Ceiling capable of changing color and preparation method thereof | |
| CN106396573A (en) | Preparation method of cement product | |
| CN113105813B (en) | Special waterproof and compression-resistant coating for back surface of underground building, and preparation method and application method thereof | |
| CN104072032A (en) | Light partition board made from raw materials containing coal gangues and preparation method of light partition board | |
| CN102875192B (en) | Montmorillonite-containing aerated brick |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |