CN114671663A - Fire-resistant gypsum board for building and preparation method thereof - Google Patents
Fire-resistant gypsum board for building and preparation method thereof Download PDFInfo
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- CN114671663A CN114671663A CN202210370945.7A CN202210370945A CN114671663A CN 114671663 A CN114671663 A CN 114671663A CN 202210370945 A CN202210370945 A CN 202210370945A CN 114671663 A CN114671663 A CN 114671663A
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- gypsum board
- parts
- reinforcing rib
- glass fiber
- fire
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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
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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
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
- C04B2111/0062—Gypsum-paper board like 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
- 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
Abstract
The invention discloses a refractory gypsum board for buildings and a preparation method thereof. According to the fire-resistant gypsum board for the building, the first reinforcing ribs and the second reinforcing ribs are arranged in the gypsum board in a crossed mode, so that the integrity of the gypsum board is improved, the gypsum board is not prone to collapse after cracking, and in addition, the two sides of the gypsum board are provided with the waterproof and fireproof cover paper, so that the cover paper is prevented from being easily burnt, and the fire resistance of the gypsum board is improved; set up kaolin, glass fiber etc. in the plaster core of gypsum board, kaolin can absorb a large amount of heats and play fire-retardant effect, and inside glass fiber has improved the fracture load, guarantees the stability of gypsum board.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a fireproof gypsum board for buildings and a preparation method thereof.
Background
The gypsum board is a material prepared by taking building gypsum as a main raw material. The building material has the advantages of light weight, high strength, small thickness, convenient processing, sound insulation, heat insulation, fire prevention and other good performances, and is one of the currently-developed novel light boards. Gypsum boards have been widely used for interior partitions, wall-covering panels (instead of wall plasters), ceilings, sound-absorbing panels, floor slabs, and various decorative panels in various buildings such as houses, office buildings, shops, hotels, and industrial plants.
The strength and fire stability of the gypsum board are two important points of attention of customers to the quality of the gypsum board, the final product of the existing gypsum board core is dihydrate gypsum, the dihydrate gypsum can be dehydrated and shrunk and cracked under the action of high-temperature flame, and the gypsum board can collapse due to cracking quickly and loses the fire-insulating capability.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the fire-resistant gypsum board for the building and the preparation method thereof, so that the fire resistance of the gypsum board is improved, and the problem that the gypsum board collapses due to thermal dehydration shrinkage cracking is solved.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a fire-resistant gypsum board for buildings comprises a gypsum core, wherein a first reinforcing rib and a second reinforcing rib are arranged in the gypsum core, the first reinforcing rib and the second reinforcing rib are arranged in a crossed manner, the first reinforcing rib is close to the top of the gypsum core, the second reinforcing rib is close to the bottom of the gypsum core, and two sides of the gypsum core are provided with face protecting paper;
the paste core comprises the following components in parts by weight: 80-120 parts of gypsum powder, 20-40 parts of diatomite, 30-60 parts of kaolin, 80-120 parts of glass fiber, 5-15 parts of silica sol, 1-3 parts of aluminum dihydrogen phosphate, 1-5 parts of a water reducing agent, 10-30 parts of calcium oxide and 80-160 parts of water;
the mask paper comprises a paperboard layer, a fireproof layer is arranged on one side of the paperboard layer, and a waterproof layer is arranged on one side of the fireproof layer.
Preferably, the first reinforcing rib and the second reinforcing rib are made of glass fiber ropes.
Preferably, the glass fiber is alkali-resistant glass fiber.
Preferably, the water reducing agent is a naphthalene sulfonate water reducing agent or a melamine water reducing agent.
A preparation method of fire-resistant gypsum board for buildings comprises the following steps:
s1, adding water into a stirrer, then adding glass fiber and aluminum dihydrogen phosphate, stirring for 3-8min, and then performing ultrasonic dispersion;
s2, adding gypsum powder, diatomite, kaolin, silica sol, a water reducing agent and calcium oxide into a stirrer, and stirring to obtain slurry;
s3, fixing a first reinforcing rib and a second reinforcing rib in a paste core forming die, paving a face protective paper on a bottom plate, placing the paste core forming die on the face protective paper, pouring slurry into the die, carrying out extrusion forming, paving another layer of face protective paper on the top of the paste core, and fixing the face protective paper by re-extrusion;
and S4, solidifying and drying the fire-resistant gypsum board obtained in the step S3, then shearing off the first reinforcing rib and the second reinforcing rib outside the fire-resistant gypsum board, demoulding, and finally cutting to obtain the final fire-resistant gypsum board.
Preferably, the paste core forming die includes the fixed plate, the fixed frame of top central authorities fixedly connected with of fixed plate, the top of fixed plate and the both sides that are located fixed frame are provided with first strengthening rib collecting chamber and second strengthening rib collecting chamber, the top of fixed plate still is provided with the fixed column that is used for fixed strengthening rib, the top of fixed frame sets up because the clamp plate of adaptation, the top of clamp plate is provided with the compression leg.
Preferably, the side of fixed frame is provided with the perforation, the through-hole with fixed frame adaptation is seted up on the surface of fixed plate, the top four corners department of fixed plate is provided with the spliced pole.
(III) advantageous effects
The invention provides a refractory gypsum board for buildings. The method has the following beneficial effects:
the first reinforcing ribs and the second reinforcing ribs which are arranged in a crossed mode are arranged inside the gypsum board, so that the integrity of the gypsum board is improved, the gypsum board is not prone to collapse after cracking, and in addition, the waterproof and fireproof cover paper is arranged on the two sides of the gypsum board, so that the cover paper is prevented from being burnt easily, and the fire resistance of the gypsum board is improved; set up kaolin, glass fiber etc. in the plaster core of gypsum board, kaolin can absorb a large amount of heats and play fire-retardant effect, and inside glass fiber has improved the fracture load, guarantees the stability of gypsum board.
Drawings
FIG. 1 is a cross-sectional view of a gypsum board of the present invention;
FIG. 2 is a schematic view of the construction of a facial tissue of the present invention;
FIG. 3 is a first schematic structural view of a paste core forming mold according to the present invention;
fig. 4 is a structural schematic diagram of a paste core forming die of the invention.
In the figure: the production process comprises the following steps of 1-paste core, 2-first reinforcing rib, 3-second reinforcing rib, 4-face protecting paper, 41-paperboard layer, 42-fireproof layer, 43-waterproof layer, 5-fixing plate, 6-fixing frame, 7-first reinforcing rib storage bin, 8-second reinforcing rib storage bin, 9-through hole, 10-fixing column, 11-connecting column, 12-pressing plate and 13-pressing column.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A fire-resistant gypsum board for buildings comprises a paste core 1, wherein a first reinforcing rib 2 and a second reinforcing rib 3 are arranged in the paste core 1, the first reinforcing rib 2 and the second reinforcing rib 3 are arranged in a crossed manner, the first reinforcing rib 2 is close to the top of the paste core 1, the second reinforcing rib 3 is close to the bottom of the paste core 1, and two sides of the paste core 1 are provided with protective paper 4;
the paste core 1 comprises the following components in parts by weight: 80 parts of gypsum powder, 20 parts of diatomite, 30 parts of kaolin, 80 parts of glass fiber, 5 parts of silica sol, 1 part of aluminum dihydrogen phosphate, 1 part of water reducing agent, 10 parts of calcium oxide and 80 parts of water, wherein the average monofilament diameter of the glass fiber is 10 mu m, and the average length of the glass fiber is 10 mm;
the protective paper 4 comprises a paperboard layer 41, a fireproof layer 42 is arranged on one side of the paperboard layer 41, and a waterproof layer 43 is arranged on one side of the fireproof layer 42.
The first reinforcing rib 2 and the second reinforcing rib 3 are made of glass fiber ropes.
The glass fiber is alkali-resistant glass fiber.
The water reducing agent is a naphthalene sulfonate water reducing agent or a melamine water reducing agent.
A preparation method of fire-resistant gypsum board for buildings comprises the following steps:
s1, adding water into a stirrer according to the parts by weight, then adding glass fiber and aluminum dihydrogen phosphate, stirring for 3min at the rotating speed of a stirring paddle of 1000r/min, and then performing ultrasonic dispersion, wherein the ultrasonic frequency is 30KHz, the ultrasonic power is 0.6kw, and the ultrasonic dispersion is 15 min;
s2, adding gypsum powder, diatomite, kaolin, silica sol, a water reducing agent and calcium oxide into a stirrer according to the parts by weight, and stirring to obtain slurry;
s3, fixing a first reinforcing rib and a second reinforcing rib in a paste core forming die, paving a face-protecting paper on a bottom plate, placing the paste core forming die on the face-protecting paper, pouring the slurry into the die, carrying out extrusion forming, paving another layer of face-protecting paper on the top of the paste core, and fixing the face-protecting paper by secondary extrusion;
and S4, solidifying and drying the refractory gypsum board obtained in the S3, then cutting off the first reinforcing ribs and the second reinforcing ribs outside the refractory gypsum board, demolding, and finally cutting to obtain the final refractory gypsum board.
Paste core forming die includes fixed plate 5, the fixed frame 6 of the top central authorities fixedly connected with of fixed plate 5, the top of fixed plate 5 and the both sides that are located fixed frame 6 are provided with first strengthening rib collecting chamber 7 and second strengthening rib collecting chamber 8, it has the glass fiber rope to coil in first strengthening rib collecting chamber 7 and the second strengthening rib collecting chamber 8, the top of fixed plate 5 still is provided with the fixed column 10 that is used for fixed strengthening rib, the top of fixed frame 6 sets up clamp plate 12 because the adaptation, the top of clamp plate 12 is provided with compression leg 13, the side of fixed frame 6 is provided with perforation 9, the through-hole with fixed frame 6 adaptation is seted up on the surface of fixed plate 5, the top four corners department of fixed plate 5 is provided with spliced pole 11, pass the glass fiber rope from the perforation 9 of fixed frame 6 side and fix on fixed column 10, tighten up the take-up device in the collecting chamber, make the tension of glass fiber rope be 15N.
Example 2
The difference from the embodiment 1 is that:
the paste core 1 comprises the following components in parts by weight: 100 parts of gypsum powder, 30 parts of diatomite, 45 parts of kaolin, 100 parts of glass fiber, 10 parts of silica sol, 2 parts of aluminum dihydrogen phosphate, 3 parts of a water reducing agent, 20 parts of calcium oxide and 120 parts of water, wherein the average monofilament diameter of the glass fiber is 12 micrometers, and the length of the glass fiber is 15 mm;
stirring for 5min at S1 with the rotating speed of a stirring paddle being 1200r/min, and then performing ultrasonic dispersion with the ultrasonic frequency being 40KHz and the ultrasonic power being 0.7kw for 18 min;
the tension of the glass fiber rope was 20N.
Example 3
The difference from the embodiment 1 is that:
the paste core 1 comprises the following components in parts by weight: 120 parts of gypsum powder, 40 parts of diatomite, 60 parts of kaolin, 120 parts of glass fiber, 15 parts of silica sol, 3 parts of aluminum dihydrogen phosphate, 5 parts of water reducing agent, 30 parts of calcium oxide and 160 parts of water, wherein the average monofilament diameter of the glass fiber is 15 mu m, and the length of the glass fiber is 18 mm;
stirring for 8min at S1 with the rotation speed of the stirring paddle being 1500r/min, and then performing ultrasonic dispersion with the ultrasonic frequency being 55KHz and the ultrasonic power being 0.9kw for 20 min;
the tension of the glass fiber rope was 25N.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element described by the phrase "comprising a. -" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A fire-resistant gypsum board for building, which is characterized in that: the paste comprises a paste core (1), wherein a first reinforcing rib (2) and a second reinforcing rib (3) are arranged in the paste core (1), the first reinforcing rib (2) and the second reinforcing rib (3) are arranged in a crossed manner, the first reinforcing rib (2) is close to the top of the paste core (1), the second reinforcing rib (3) is close to the bottom of the paste core (1), and two sides of the paste core (1) are provided with a face protective paper (4);
the paste core (1) comprises the following components in parts by weight: 80-120 parts of gypsum powder, 20-40 parts of diatomite, 30-60 parts of kaolin, 80-120 parts of glass fiber, 5-15 parts of silica sol, 1-3 parts of aluminum dihydrogen phosphate, 1-5 parts of a water reducing agent, 10-30 parts of calcium oxide and 80-160 parts of water;
the protective paper (4) comprises a paperboard layer (41), a fireproof layer (42) is arranged on one side of the paperboard layer (41), and a waterproof layer (43) is arranged on one side of the fireproof layer (42).
2. The refractory gypsum board for construction as claimed in claim 1, wherein: the first reinforcing rib (2) and the second reinforcing rib (3) are made of glass fiber ropes.
3. The refractory gypsum board for construction as claimed in claim 1, wherein: the glass fiber is alkali-resistant glass fiber.
4. The refractory gypsum board for construction as claimed in claim 1, wherein: the water reducing agent is a naphthalene sulfonate water reducing agent or a melamine water reducing agent.
5. The method for producing a fire-resistant gypsum board for construction according to any one of claims 1 to 4, wherein: the method comprises the following steps:
s1, adding water into a stirrer, then adding glass fiber and aluminum dihydrogen phosphate, stirring for 3-8min, and then performing ultrasonic dispersion;
s2, adding gypsum powder, diatomite, kaolin, silica sol, a water reducing agent and calcium oxide into a stirrer, and stirring to obtain slurry;
s3, fixing a first reinforcing rib and a second reinforcing rib in a paste core forming die, paving a face-protecting paper on a bottom plate, placing the paste core forming die on the face-protecting paper, pouring the slurry into the die, carrying out extrusion forming, paving another layer of face-protecting paper on the top of the paste core, and fixing the face-protecting paper by secondary extrusion;
and S4, solidifying and drying the refractory gypsum board obtained in the S3, then cutting off the first reinforcing ribs and the second reinforcing ribs outside the refractory gypsum board, demolding, and finally cutting to obtain the final refractory gypsum board.
6. The method for preparing a fire-resistant gypsum board for construction according to claim 5, wherein: paste core forming die includes fixed plate (5), the fixed frame (6) of top central authorities fixedly connected with of fixed plate (5), the top of fixed plate (5) and the both sides that are located fixed frame (6) are provided with first strengthening rib collecting storage (7) and second strengthening rib collecting storage (8), the top of fixed plate (5) still is provided with fixed column (10) that are used for fixed strengthening rib, the top of fixed frame (6) sets up clamp plate (12) because the adaptation, the top of clamp plate (12) is provided with compression leg (13).
7. The method for preparing a fire-resistant gypsum board for construction according to claim 5, wherein: the side of fixed frame (6) is provided with perforation (9), the through-hole with fixed frame (6) adaptation is seted up on the surface of fixed plate (5), the top four corners department of fixed plate (5) is provided with spliced pole (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210370945.7A CN114671663B (en) | 2022-04-11 | 2022-04-11 | Fire-resistant gypsum board for building and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210370945.7A CN114671663B (en) | 2022-04-11 | 2022-04-11 | Fire-resistant gypsum board for building and preparation method thereof |
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| CN114671663A true CN114671663A (en) | 2022-06-28 |
| CN114671663B CN114671663B (en) | 2023-03-10 |
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| WO2022029584A1 (en) * | 2020-08-07 | 2022-02-10 | Georgia-Pacific Gypsum Llc | Fire resistant gypsum panels, and methods |
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| Publication number | Publication date |
|---|---|
| CN114671663B (en) | 2023-03-10 |
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