CN114409436A - Phosphogypsum fireproof door core filler and preparation method thereof - Google Patents
Phosphogypsum fireproof door core filler and preparation method thereof Download PDFInfo
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- CN114409436A CN114409436A CN202210057501.8A CN202210057501A CN114409436A CN 114409436 A CN114409436 A CN 114409436A CN 202210057501 A CN202210057501 A CN 202210057501A CN 114409436 A CN114409436 A CN 114409436A
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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
- 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
- C04B38/085—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding porous substances of micro- or nanosize
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/38—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions wherein the mixing is effected both by the action of a fluid and by directly-acting driven mechanical means, e.g. stirring means ; Producing cellular concrete
- B28C5/381—Producing cellular concrete
- B28C5/386—Plants; Systems; Methods
- B28C5/388—Methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/40—Mixing specially adapted for preparing mixtures containing fibres
- B28C5/402—Methods
-
- 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
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B16/04—Macromolecular compounds
- C04B16/06—Macromolecular compounds fibrous
- C04B16/0675—Macromolecular compounds fibrous from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B16/0683—Polyesters, e.g. polylactides
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/40—Compounds containing silicon, titanium or zirconium or other organo-metallic compounds; Organo-clays; Organo-inorganic complexes
- C04B24/42—Organo-silicon compounds
-
- 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
- C04B28/143—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 phosphogypsum
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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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/70—Door leaves
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
- E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
-
- 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 phosphogypsum fireproof door core filler and a preparation method thereof, belongs to the technical field of door core filler processing, and aims to solve the problems of poor mechanical property and complicated installation of a door core plate of the existing fireproof door core plate. The invention solves the problems of poor mechanical property of the fireproof door core plate and complicated installation of the door core plate, and has the advantages of sound insulation, heat preservation, fire prevention, light volume weight and the like.
Description
Technical Field
The invention belongs to the technical field of door core processing, and particularly relates to a phosphogypsum fireproof door core filler and a preparation method thereof.
Background
The door plate is composed of a framework, a door core filling material and fireproof hardware, and the filling material of the door core plate is a core material for improving the performance of the door core plate. The filling materials of the existing door core board are rock wool, aluminum silicate wool, mineral wool, perlite boards, foamed magnesium oxychloride cement boards, foamed cement boards and the like. Although the materials are light in weight and good in heat insulation, the energy consumption is high in the production process, the materials are formed by organic bonding agents, pollution is generated in the production process and the use process, the environment-friendly requirement is difficult to achieve, and meanwhile, the problems that the core plate of the fireproof door is poor in integrity, short in fire-resistant limit time, poor in mechanical property, easy to deform, high in comprehensive cost, inconvenient to use and the like exist; although the perlite fireproof door core board has better fireproof performance, the board is formed by adopting strong alkaline adhesives such as water glass and the like, has corrosivity and poorer strength and toughness, and the product is easy to damage in the production and use processes; the vermiculite fire door core plate is formed by adopting an organic or inorganic adhesive, and has the problems of complex production process, regional limitation on raw material sources, large dry density and high comprehensive cost; although the core plate of the magnesium oxychloride cement fireproof door has the characteristics of light weight, high strength, low cost and the like, key technical problems of unstable volume, moisture absorption, halogen return and frost return, warping deformation, short fireproof limit time and the like are not solved effectively all the time; the fireproof door core plate prepared by foaming Portland cement or sulphoaluminate cement has the advantages of easy pulverization on the surface, low later strength and poor stability, and the quality of the fireproof door is seriously influenced. The existing fireproof door core plate is prepared by pouring a mold and then maintaining and forming, the obtained door core plate is installed in the door plate cavity, the step of installing the door core plate is added in the process, the door core plate is a manufactured finished product and is installed in the door plate cavity, so that the door core plate and the door plate surface are bonded firmly in the using process, the door core plate falls off, the door core plate in the door plate is loosened to influence the use, and the door core plate is installed in the door plate cavity, so that the size requirement between the door core plate and the door plate is strict, the size is not easy to control, and the requirement on personnel operation is higher.
Therefore, based on the defects of the background art of the fireproof door, the invention is obtained through long-term research and multiple experimental demonstrations.
Disclosure of Invention
The invention aims to: the phosphogypsum fireproof door core filler and the preparation method thereof are provided to solve the problems of poor mechanical property and complex installation of the existing fireproof door core plate.
The invention aims to provide a phosphogypsum fireproof door core filler, which adopts the following technical scheme:
the ardealite fireproof door core filler comprises the following components in parts by weight: 900 parts of alpha-type phosphogypsum, 55-65 parts of polyester fiber, 35-42 parts of redispersible latex powder, 390 parts of expanded foaming micro-beads, 120 parts of fly ash micro-beads, 140 parts of waterproofing agent, 2.8-3.2 parts of aluminum powder and 12-18 parts of lime.
Preferably, the phosphogypsum fireproof door core filler comprises the following components in parts by weight: 830-870 parts of alpha-type ardealite, 58-62 parts of polyester fiber, 38-40 parts of redispersible latex powder, 360-380 parts of expanded foaming micro-beads, 125-132 parts of fly ash micro-beads, 2.9-3 parts of a waterproof agent, 13-17 parts of aluminum powder and 13-17 parts of lime.
Preferably, the phosphogypsum fireproof door core filler comprises the following components in parts by weight: 850 parts of alpha phosphogypsum powder, 60 parts of polyester fiber, 39 parts of redispersible latex powder, 370 parts of expanded foaming micro-beads, 128 parts of fly ash micro-beads, 3 parts of waterproof agent, 15 parts of aluminum powder and 15 parts of lime.
Preferably, the water-proofing agent comprises sodium methyl silicate and sodium methyl silanol.
The second purpose of the invention is to provide a preparation method of the ardealite fireproof door core filler, which adopts the following technical scheme:
a preparation method of a phosphogypsum fireproof door core filler comprises the following steps:
1) weighing alpha-type phosphogypsum, polyester fiber, redispersible latex powder, expanded foaming microbeads, fly ash microbeads and a waterproof agent according to the component parts, and uniformly mixing to obtain composite phosphogypsum powder;
2) adding water into a stirrer, adding the uniformly mixed composite phosphogypsum powder obtained in the step 1) into the stirrer, stirring and uniformly mixing, and uniformly mixing to obtain a component A;
3) weighing aluminum powder and lime in the component parts, uniformly mixing, and obtaining a component B after uniform mixing;
4) uniformly mixing the component B obtained in the step 3) and the component A obtained in the step 2) in proportion to obtain liquid slurry filler;
5) pouring the liquid slurry filler obtained in the step 4) into a cavity of the door panel, naturally foaming, and forming a solid filler by the foamed liquid slurry filler to obtain the ardealite fireproof door core filler.
Preferably, the mass ratio of the phosphogypsum powder in the step 2) to water is 1: 2.
Preferably, the mass ratio of the component A to the component B in the step 4) is 1: 1.
Preferably, the natural foaming in the step 5) takes 1.5-2 hours.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the ardealite fireproof door core filler prepared by the formula and the preparation method solves the problems of poor mechanical property of a fireproof door core plate and complicated installation of the door core plate, and has the advantages of sound insulation, heat preservation, fire prevention, light volume weight and the like.
2. The alpha-type phosphogypsum in the formula of the invention takes the industrial by-product phosphogypsum as a raw material, thereby changing waste into valuable, realizing the cyclic utilization of resources, reducing environmental pollution and realizing the green production concept.
3. The polyester fiber and the wood fiber of the components have small specific gravity, excellent heat preservation, heat insulation, sound insulation, insulation and air permeability, uniform thermal expansion, no shell and no cracking; the wood fiber is easy to disperse in the heat insulation material to form a three-dimensional space result, and can absorb moisture 6-8 times of the self weight. The combination and the characteristics improve the workability, the operability and the anti-sliding performance of the material and accelerate the construction speed; the dimension stability and the thermal stability of the wood fiber play a good role in heat preservation and crack resistance in the heat preservation material; the moisture transmission function of the wood fiber ensures that the hydration reaction between the surface of the slurry and the interface of the base layer is sufficient, thereby improving the surface strength of the heat-insulating material, the bonding strength with the base layer and the uniformity of the material strength and enhancing the performance of the door core filler. The fibre presents the cotton shape of cocoon, realize density diversity, make door core cloth after the processing is accomplished have slight aperture, these apertures have fine sound absorbing effect, the audio frequency that external production can go deep into inside the material through these slight apertures, take place the friction with the material and turn into heat energy with sound energy conversion, thereby reach sheet metal resonance sound absorption, through the board absorbed sound energy, simultaneously along with the increase acoustic absorption coefficient crescent of frequency, carry out more powerful absorption to external sound, make the door core reach and inhale the sound requirement.
4. The redispersible latex powder can be quickly redispersed into emulsion after contacting with water, and the redispersible latex powder has high bonding capability, water resistance, heat insulation property and other properties, so that the performance of the door core is improved. The water-proofing agent uses sodium methyl silicate and sodium methyl glycolate, and has the advantages of good water solubility, low price, convenient use, safety and the like, and carbon dioxide in air is absorbed for crosslinking and curing during curing, so that the water-proofing and moisture-proofing properties cannot be lost even if the water-proofing agent is contacted with water. The inflation foaming micro-bead is an inflation closed-cell structure, which is not only favorable for electrical insulation, but also favorable for heat insulation, so that when a fire disaster happens, the door plate can have effective fireproof performance. The application of the fly ash micro-beads improves the workability of slurry, reduces the temperature rise of the slurry, improves the durability of the slurry, reduces the deformation, improves the wear resistance, reduces the cost and the like, and the fly ash micro-beads have smaller volume weight and can reduce the weight of the door core.
5. The main component of the alpha-type phosphogypsum applied by the invention is that calcium sulfate dihydrate is slightly acidic, and the acidity influences the use of the door core, so that lime can be used for adjusting the slurry to be changed from acidity to alkalinity, and further the lime promotes the foaming of the filler of the phosphogypsum fireproof door core. The aluminum powder and the formula are mixed and prepared, the aluminum powder and the water react in an alkaline environment, the initially generated hydrogen is immediately dissolved in a liquid phase, and the solution is quickly saturated due to low solubility of the hydrogen. When a certain saturation degree is reached, one or a plurality of bubble nuclei are formed on the surface of the aluminum powder particles, the pressure in the bubbles is gradually increased due to the gradual accumulation of hydrogen, and the bubbles grow to push the slurry to expand upwards after the internal pressure overcomes the gravity of the slurry on the upper layer and the limit shear stress of the slurry. After the bubbles grow up, the internal pressure is reduced, and the expansion is nearly stopped; however, because hydrogen is continuously supplemented, the internal pressure is increased again, bubbles grow further, and the slurry expands further, so that the hydrogen generated by the reaction of the aluminum powder and the water and the expansion of the slurry are in a dynamic equilibrium state. The power of slurry expansion is the internal pressure in the bubble, and the resistance to slurry expansion is the gravity of the slurry in the upper layer and the ultimate shear stress of the slurry. At the initial stage of gas generation, the aluminum powder and hydrogen are continuously generated under the action of the aluminum powder, the internal pressure is continuously supplemented, and at the moment, the slurry possibly still is in a Newtonian liquid state and has no limit shear stress, so that the slurry is rapidly expanded. With the continuous hydration of lime and cement, the skeleton structure of slurry is gradually formed, the limit shear stress is continuously increased, at the moment, the reaction of aluminum powder and water is still continued, and as long as the pressure in the air bubbles is continuously greater than the gravity and the limit shear stress of the slurry on the upper layer, the expansion is continued. When the reaction of aluminium powder and water is close to the end sound, the slurry is thickened rapidly, the limit shear stress is increased rapidly, and the expansion is slowed down gradually. When the reaction of the aluminum powder is finished, the internal pressure in the bubbles is not increased any more, or the internal pressure is not enough to overcome the gravity of the upper slurry and the limit shear stress of the slurry, the expansion process is stopped, the working procedure of a foaming machine is omitted by natural foaming, and the application of preparation tools is reduced.
6. When the prepared ardealite fireproof door core filler is used for field application, the ardealite fireproof door core filler is directly poured into a door panel cavity, the process that the prepared slurry is poured into a mold to be cured, molded and provided with a door core plate in the existing door core plate preparation method is omitted, the door core filler is spontaneously foamed, and the process that a foaming agent is used for foaming in the existing door core plate preparation method is omitted. Further filler pouring carries out the foaming in the door plant cavity naturally for the filler after the foaming expands, and then fills up in the door plant cavity, and because filler is the liquid form pouring in the door plant cavity, the filler can flow into in the clearance of door plant corner, makes each corner of door plant can fill. The foamed filler forms a honeycomb-like structure, the honeycomb structures have high tightness, all the parts bear equal force, the stress is easy to disperse, and the mechanical property of the door core can be improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The ardealite fireproof door core filler comprises the following components in parts by weight: 850 parts of alpha-type phosphogypsum, 60 parts of polyester fiber, 39 parts of redispersible latex powder, 370 parts of expanded foaming micro-beads, 128 parts of fly ash micro-beads, 3 parts of a waterproof agent, 15 parts of aluminum powder and 15 parts of lime;
the preparation method comprises the following steps:
1) weighing alpha-type phosphogypsum, polyester fiber, redispersible latex powder, expanded foaming microbeads, fly ash microbeads and a waterproof agent according to the component parts, and uniformly mixing to obtain composite phosphogypsum powder;
2) adding water into a stirrer, adding the composite phosphogypsum powder uniformly mixed in the step 1) into the stirrer, stirring and uniformly mixing, wherein the mass ratio of the composite phosphogypsum powder to the water is 1:2, and uniformly mixing to obtain a component A;
3) weighing aluminum powder and lime in the component parts, uniformly mixing, and obtaining a component B after uniform mixing;
4) during field operation, uniformly mixing the component B obtained in the step 3) with the component A obtained in the step 2) according to the mass ratio of 1:1 to obtain liquid slurry filler;
5) pouring the liquid slurry filler obtained in the step 4) into a cavity of the door panel, naturally foaming the filler for 2 hours, and forming a solid filler from the original liquid slurry filler after foaming to obtain the phosphogypsum fireproof door core filler.
Example 2
The ardealite fireproof door core filler comprises the following components in parts by weight: 800 parts of alpha-type phosphogypsum, 55 parts of polyester fiber, 35 parts of redispersible latex powder, 350 parts of expanded foaming micro-beads, 120 parts of fly ash micro-beads, 2.8 parts of a waterproof agent, 12 parts of aluminum powder and 12 parts of lime;
the preparation method comprises the following steps:
1) weighing alpha-type phosphogypsum, polyester fiber, redispersible latex powder, expanded foaming microbeads, fly ash microbeads and a waterproof agent according to the component parts, and uniformly mixing to obtain composite phosphogypsum powder;
2) adding water into a stirrer, adding the composite phosphogypsum powder uniformly mixed in the step 1) into the stirrer, stirring and uniformly mixing, wherein the mass ratio of the composite phosphogypsum powder to the water is 1:2, and uniformly mixing to obtain a component A;
3) weighing aluminum powder and lime in the component parts, uniformly mixing, and obtaining a component B after uniform mixing;
4) during field operation, uniformly mixing the component B obtained in the step 3) with the component A obtained in the step 2) according to the mass ratio of 1:1 to obtain liquid slurry filler;
5) pouring the liquid slurry filler obtained in the step 4) into a cavity of the door panel, naturally foaming the filler for 1.8 hours, and forming a solid filler from the original liquid slurry filler after foaming to obtain the phosphogypsum fireproof door core filler.
Example 3
The ardealite fireproof door core filler comprises the following components in parts by weight: 900 parts of alpha-type phosphogypsum, 65 parts of polyester fiber, 42 parts of redispersible latex powder, 390 parts of expanded foaming micro-beads, 140 parts of fly ash micro-beads, 3.2 parts of a waterproof agent, 18 parts of aluminum powder and 18 parts of lime;
the preparation method comprises the following steps:
1) weighing alpha-type phosphogypsum, polyester fiber, redispersible latex powder, expanded foaming microbeads, fly ash microbeads and a waterproof agent according to the component parts, and uniformly mixing to obtain composite phosphogypsum powder;
2) adding water into a stirrer, adding the composite phosphogypsum powder uniformly mixed in the step 1) into the stirrer, stirring and uniformly mixing, wherein the mass ratio of the composite phosphogypsum powder to the water is 1:2, and uniformly mixing to obtain a component A;
3) weighing aluminum powder and lime in the component parts, uniformly mixing, and obtaining a component B after uniform mixing;
4) during field operation, uniformly mixing the component B obtained in the step 3) with the component A obtained in the step 2) according to the mass ratio of 1:1 to obtain liquid slurry filler;
5) pouring the liquid slurry filler obtained in the step 4) into a cavity of the door panel, naturally foaming the filler for 1.8 hours, and forming a solid filler from the original liquid slurry filler after foaming to obtain the phosphogypsum fireproof door core filler.
Example 4
The ardealite fireproof door core filler comprises the following components in parts by weight: 830 parts of alpha-type phosphogypsum, 58 parts of polyester fiber, 38 parts of redispersible latex powder, 360 parts of expanded foaming micro-beads, 125 parts of fly ash micro-beads, 2.9 parts of a waterproof agent, 13 parts of aluminum powder and 13 parts of lime;
the preparation method comprises the following steps:
1) weighing alpha-type phosphogypsum, polyester fiber, redispersible latex powder, expanded foaming microbeads, fly ash microbeads and a waterproof agent according to the component parts, and uniformly mixing to obtain composite phosphogypsum powder;
2) adding water into a stirrer, adding the composite phosphogypsum powder uniformly mixed in the step 1) into the stirrer, stirring and uniformly mixing, wherein the mass ratio of the composite phosphogypsum powder to the water is 1:2, and uniformly mixing to obtain a component A;
3) weighing aluminum powder and lime in the component parts, uniformly mixing, and obtaining a component B after uniform mixing;
4) during field operation, uniformly mixing the component B obtained in the step 3) with the component A obtained in the step 2) according to the mass ratio of 1:1 to obtain liquid slurry filler;
5) pouring the liquid slurry filler obtained in the step 4) into a cavity of the door panel, naturally foaming the filler for 1.5 hours, and forming a solid filler from the original liquid slurry filler after foaming to obtain the phosphogypsum fireproof door core filler.
Example 5
The ardealite fireproof door core filler comprises the following components in parts by weight: 870 parts of alpha-type phosphogypsum, 62 parts of polyester fiber, 40 parts of redispersible latex powder, 380 parts of expanded foaming micro-beads, 132 parts of fly ash micro-beads, 3 parts of waterproof agent, 17 parts of aluminum powder and 17 parts of lime;
the preparation method comprises the following steps:
1) weighing alpha-type phosphogypsum, polyester fiber, redispersible latex powder, expanded foaming microbeads, fly ash microbeads and a waterproof agent according to the component parts, and uniformly mixing to obtain composite phosphogypsum powder;
2) adding water into a stirrer, adding the composite phosphogypsum powder uniformly mixed in the step 1) into the stirrer, stirring and uniformly mixing, wherein the mass ratio of the composite phosphogypsum powder to the water is 1:2, and uniformly mixing to obtain a component A;
3) weighing aluminum powder and lime in the component parts, uniformly mixing, and obtaining a component B after uniform mixing;
4) during field operation, uniformly mixing the component B obtained in the step 3) with the component A obtained in the step 2) according to the mass ratio of 1:1 to obtain liquid slurry filler;
5) pouring the liquid slurry filler obtained in the step 4) into a cavity of the door panel, naturally foaming the filler for 2 hours, and forming a solid filler from the original liquid slurry filler after foaming to obtain the phosphogypsum fireproof door core filler.
Test examples
1. To prove the beneficial effects of the invention, 3 door panel fillers are respectively selected for the above embodiments 1-5 to perform the combustion performance test, and the detection standard is executed according to the "combustion performance grading of building materials and products" (GB/T8624-2012) and the "material smoke toxicity risk grading" (GB/T20285-. The results are shown in table 1:
TABLE 1 phosphogypsum fire door core Filler door plank various combustion properties
| Item | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 |
| Grade of combustion performance | A1 | A1 | A1 | A1 | A1 |
| Grade of smoke toxicity | AQ1 | AQ1 | AQ1 | AQ1 | AQ1 |
The results in Table 1 show that the door panel combustion performance grade of the ardealite door core filler prepared by the invention reaches B1Grade, smoke toxicity reaches AQ1The ardealite door fireproof door core filler has the advantages of strong fire resistance, high safety factor, effective prevention of fire spreading in the using process, low smoke concentration even after combustion and avoidance of dense smoke suffocation when a human body inhales.
2. 3 pieces of door panel filler are respectively selected from the above embodiments 1 to 5 to carry out mechanical property tests, and the 5 items of tests are respectively opening and closing force, soft weight impact resistance, anti-static distortion performance, anti-heavy force closing performance and anti-diagonal deformation performance, and the detection standard is executed according to the detection method of mechanical properties of building doors and windows (GB/T9158-2015). The results are shown in the following table:
TABLE 2 opening and closing force of phosphogypsum fireproof door core filler door panel
As can be seen from the data in Table 2, the maximum operating force of the door panel of the phosphogypsum fireproof door core filler in the processes of slow opening and slow closing is only 10N, and when the door panel locking device is locked and unlocked, the maximum operating force is only 10N, and the maximum torque is 1.5 Nm.
TABLE 3 impact resistance of filler door panel of phosphogypsum fireproof door core against soft heavy objects
As can be seen from the data in Table 3, soft weights falling at the heights of 700mm and 930mm impact the door panel of the phosphogypsum fireproof door core filler, and the result shows that the door panel has no obvious change, no abnormity in opening and closing and no obstacle in use.
TABLE 4 anti-static distortion performance of door plate with ardealite fireproof door core filler
| Anti-static distortion performance | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 |
| Static test load F N | 350 | 350 | 350 | 350 | 350 |
As can be seen from the data in Table 4, when the phosphogypsum fireproof door core filler door panel is opened and closed and is applied with the resistance of 350N, the handle is still pushed and pulled forcibly, the door panel is not deformed, and the opening and the closing are normal.
TABLE 5 ardealite fireproof door core packing door plank resistance to heavy force closure
| Resistance to large force closure | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 |
| F N | 1200 | 1100 | 1200 | 1100 | 1200 |
As can be seen from the data in Table 5, when the door panel of the core filler of the phosphogypsum fireproof door is in an open state, the door panel is blown by gusts of 1100N and 1200N, and the door panel has no deformation, failure and damage and does not influence the normal use of the door panel.
TABLE 6 diagonal deformation resistance of filler door plate of phosphogypsum fireproof door core
| Resistance to diagonal deformation | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 |
| F N | 200 | 200 | 200 | 200 | 200 |
As can be seen from the data in Table 6, when the ardealite fireproof door core filler door panel provided by the invention is subjected to the resistance action of 200N, the movable door panel is still forcibly pushed and pulled, and the opening and closing of the door panel are still normal.
TABLE 7 mechanical Properties of door sheets with fillers for phosphogypsum fireproof door cores
From tables 2-6, the mechanical properties of the door sheet of the ardealite door core filler prepared by the invention are shown in table 7, and the detection results are qualified through the detection of 5 items of opening and closing force, soft weight impact resistance, anti-static distortion performance, anti-heavy force closing performance and anti-diagonal deformation performance, so that the door sheet of the ardealite fireproof door core filler prepared by the formula disclosed by the invention is verified to have better mechanical properties, and the problem of poor performance of the existing door core plate is solved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The ardealite fireproof door core filler is characterized by comprising the following components in parts by weight: 900 parts of alpha-type phosphogypsum, 55-65 parts of polyester fiber, 35-42 parts of redispersible latex powder, 390 parts of expanded foaming micro-beads, 120 parts of fly ash micro-beads, 140 parts of waterproofing agent, 2.8-3.2 parts of aluminum powder and 12-18 parts of lime.
2. The ardealite fireproof door core filler is characterized by comprising the following components in parts by weight: 830-870 parts of alpha-type ardealite, 58-62 parts of polyester fiber, 38-40 parts of redispersible latex powder, 360-380 parts of expanded foaming micro-beads, 125-132 parts of fly ash micro-beads, 2.9-3 parts of a waterproof agent, 13-17 parts of aluminum powder and 13-17 parts of lime.
3. The ardealite fireproof door core filler is characterized by comprising the following components in parts by weight: 850 parts of alpha phosphogypsum powder, 60 parts of polyester fiber, 39 parts of redispersible latex powder, 370 parts of expanded foaming micro-beads, 128 parts of fly ash micro-beads, 3 parts of waterproof agent, 15 parts of aluminum powder and 15 parts of lime.
4. A phosphogypsum fire door core filler according to any one of claims 1-3, characterised in that the waterproofing agent comprises sodium methyl silicate, sodium methyl silanol.
5. The preparation method of the phosphogypsum fire door core filler according to any one of claims 1 to 4, is characterized by comprising the following steps;
1) weighing alpha-type phosphogypsum, polyester fiber, redispersible latex powder, expanded foaming microbeads, fly ash microbeads and a waterproof agent according to the component parts, and uniformly mixing to obtain composite phosphogypsum powder;
2) adding water into a stirrer, adding the uniformly mixed composite phosphogypsum powder obtained in the step 1) into the stirrer, stirring and uniformly mixing, and uniformly mixing to obtain a component A;
3) weighing aluminum powder and lime in the component parts, uniformly mixing, and obtaining a component B after uniform mixing;
4) uniformly mixing the component B obtained in the step 3) and the component A obtained in the step 2) in proportion to obtain liquid slurry filler;
5) pouring the liquid slurry filler obtained in the step 4) into a cavity of the door panel, naturally foaming, and forming a solid filler by the foamed liquid slurry filler to obtain the ardealite fireproof door core filler.
6. The preparation method of the phosphogypsum fireproof door core filler according to claim 5, wherein the mass ratio of the phosphogypsum powder in the step 2) to water is 1: 2.
7. The preparation method of the ardealite fireproof door core filler according to claim 5, wherein the mass ratio of the component A to the component B in the step 4) is 1: 1.
8. The preparation method of the ardealite fireproof door core filler according to claim 5, wherein the natural foaming in the step 5) is performed for 1.5-2 hours.
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| CN202210057501.8A CN114409436A (en) | 2022-01-18 | 2022-01-18 | Phosphogypsum fireproof door core filler and preparation method thereof |
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| CN202210057501.8A CN114409436A (en) | 2022-01-18 | 2022-01-18 | Phosphogypsum fireproof door core filler and preparation method thereof |
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