CN111348887A - Large steel heat-insulation fireproof door capable of enhancing fire resistance integrity - Google Patents
Large steel heat-insulation fireproof door capable of enhancing fire resistance integrity Download PDFInfo
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- CN111348887A CN111348887A CN202010177461.1A CN202010177461A CN111348887A CN 111348887 A CN111348887 A CN 111348887A CN 202010177461 A CN202010177461 A CN 202010177461A CN 111348887 A CN111348887 A CN 111348887A
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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
- C04B28/34—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 cold phosphate binders
- C04B28/346—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 cold phosphate binders the phosphate binder being present in the starting composition as a mixture of free acid and one or more phosphates
- C04B28/348—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 cold phosphate binders the phosphate binder being present in the starting composition as a mixture of free acid and one or more phosphates the starting mixture also containing one or more reactive oxides
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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
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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
- C04B2111/00629—Gypsum-paper board like materials the covering sheets being made of material other than paper
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- 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
- E06B2003/7049—Specific panel characteristics
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
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Abstract
The invention discloses a large steel heat-insulation fireproof door capable of enhancing fire resistance integrity, which comprises a door main body, wherein a fireproof door core plate is arranged in the door main body, and the fireproof door core plate comprises the following components in parts by weight: 15-30 parts of micro silicon powder; 25-30 parts of magnesium oxide; 20-25 parts of magnesium sulfate; 2-5 parts of calcium phosphate; 1-3 parts of barium sulfate; 5-10 parts of dipentaerythritol; and 25-55 parts of a solvent. A preparation method of a large steel heat-insulation fireproof door with enhanced fire resistance integrity comprises the following steps: s1, preparing a fireproof door core board; and S2, filling the fireproof door core plate prepared in the step S1 into the door main body to form the steel fireproof door. The invention has the effect of enhancing the fire-resistant integrity of the steel fireproof door.
Description
Technical Field
The invention relates to the technical field of fireproof doors, in particular to a large steel heat-insulation fireproof door capable of enhancing fire resistance integrity.
Background
At present, at the fire wall opening of building fire prevention subregion, evacuation stairwell, evacuation pavement etc. department, all can install the fire door is prevented to the steel, because the fire door is prevented to the steel can satisfy fire-resistant stability, integrality and heat-proof quality in the certain time, consequently, when the conflagration breaing out, closes the fire door is prevented to the steel and can prevent that flame from stretching and prevent that the cigarette from flowing to guarantee that personnel are sparse in the certain time.
The existing steel fireproof door takes two door leaf panels made of steel materials as a door main body, and a fireproof door core plate with fireproof performance is filled between the two door leaf panels, so that the fireproof performance of the steel fireproof door is realized. The steel of installing at high-rise building's fire prevention subregion etc. prevents fire door, the preparation material of its fire door core plate uses expanded perlite as the owner, when high-rise building breaks out a fire, because the personnel of gathering in the high-rise building are more, the floor is higher, sparse distance is far away, therefore need required time longer, and it is relatively poor to prevent fire door core plate self intensity that takes expanded perlite to give first place to, this prevents fire door core plate and appears penetrability crack or hole in 60-70min promptly, and then does not possess fire behavior promptly after making to prevent fire door loses fire-resistant integrality, fire endurance is lower, be unfavorable for personnel's whole evacuation.
Disclosure of Invention
In view of the shortcomings of the prior art, a first object of the present invention is to provide a large steel heat insulation fireproof door with enhanced fire resistance integrity.
The second purpose of the invention is to provide a preparation method of the large steel heat-insulation fireproof door with enhanced fire resistance integrity.
In order to achieve the first object, the invention provides the following technical scheme:
the utility model provides a large-scale steel of reinforcing fire-resistant integrality is thermal-insulated prevents fire door, includes the door main part, the inside of door main part is provided with prevents fire door core, prevent fire door core including the component of following mass fraction:
15-30 parts of micro silicon powder;
25-30 parts of magnesium oxide;
20-25 parts of magnesium sulfate;
2-5 parts of calcium phosphate;
1-3 parts of barium sulfate;
5-10 parts of dipentaerythritol;
and 25-55 parts of a solvent.
Through adopting above-mentioned technical scheme, adopt the calcium phosphate, barium sulfate and dipentaerythritol cooperate each other, make the structural strength of fire door core stronger, thereby make the fire door core be difficult to take place crack or hole after experiencing flame burning longer time, consequently filling this fire door core with the back in the door main part, be favorable to strengthening the fire-resistant integrality of fire door, thereby stop flame to spread better and prevent to fire the cigarette and flow, be favorable to improving the fire resistance of fire door, be favorable to extension personnel evacuation time simultaneously.
The present invention in a preferred example may be further configured to: the fireproof door core plate further comprises the following components in parts by mass:
3-5 parts of nano zinc oxide.
Through adopting above-mentioned technical scheme, through the interpolation of nanometer zinc oxide, be favorable to promoting calcium phosphate, barium sulfate and dipentaerythritol's mutual cooperation better, further improve the structural strength who prevents fire door core, prevent that fire door core is difficult for appearing the fracture and burn through when long-time flame burning to be favorable to promoting the steel to prevent that fire door improves its fire-resistant integrality better, the extension steel prevents that fire door blocks the time that the intensity of a fire spreads, and its fire behavior is stronger.
The present invention in a preferred example may be further configured to: the fireproof door core plate further comprises the following components in parts by mass:
2-4 parts of polybenzimidazole.
By adopting the technical scheme and adding polybenzimidazole, the mutual synergistic effect of calcium phosphate, barium sulfate and dipentaerythritol is further promoted, so that the compactness of the internal structure of the fireproof door core plate formed by preparation is improved, the structural strength is better, the phenomena of pores and burnthrough are not easy to occur in the process of long-time combustion, the fire-resistant integrity of the steel fireproof door prepared by the protective door core plate is favorably enhanced, and the effect of preventing fire from spreading is better achieved.
The present invention in a preferred example may be further configured to: the fireproof door core plate further comprises the following components in parts by mass:
0.5-2 parts of white carbon black.
Through adopting above-mentioned technical scheme, the addition of white carbon black is favorable to carrying out the mutual cooperation between calcium phosphate, barium sulfate and the dipentaerythritol better, is favorable to improving the structural stability of the fire door core board that the preparation was accomplished for it is difficult for taking place the fracture deformation to prevent fire door core board when the conflagration takes place, thereby makes its structural strength better, and fire-resistant integrality is better.
The present invention in a preferred example may be further configured to: the fireproof door core plate further comprises the following components in parts by mass:
4.5-7 parts of polyester powder.
By adopting the technical scheme and adding the polyester rubber powder, the prepared fireproof door core plate has higher compactness, is not easy to crack after flame combustion for a longer time, has better fireproof performance, and is favorable for better improving the fireproof integrity of the steel fireproof door.
The present invention in a preferred example may be further configured to: the particle size of the micro silicon powder is 60-200 meshes.
By adopting the technical scheme, the particle size of the silica fume is 60-200 meshes, so that the silica fume can be favorably used for filling the pores in the fireproof door core plate, the compactness of the whole structure of the fireproof door core plate is improved, and the steel fireproof door prepared by the fireproof door core plate can meet the requirement on the fire resistance integrity more easily.
The present invention in a preferred example may be further configured to: the solvent is dilute hydrochloric acid.
By adopting the technical scheme, the dilute hydrochloric acid is used as the solvent, so that the solubility of the calcium phosphate, the barium sulfate and the dipentaerythritol is increased, the calcium phosphate, the barium sulfate and the dipentaerythritol are dissolved more easily, and the calcium phosphate, the barium sulfate and the dipentaerythritol are better cooperated with each other to play a role, so that the structural strength of the fireproof door core plate is enhanced, and the fire resistance integrity is better.
In order to achieve the second object, the invention provides the following technical scheme:
a preparation method of a large steel heat-insulation fireproof door with enhanced fire resistance integrity comprises the following steps: the method comprises the following steps:
s1, preparing the fireproof door core board:
s101, adding 1/2 amounts of solvent into a reaction vessel, mixing the micro silicon powder, the magnesium oxide and the magnesium sulfate, adding into the reaction vessel, and stirring for 1.5-2 hours to uniformly mix the materials to form a premix;
s102, sequentially adding the rest components into the premix obtained in the step S101 while stirring, and stirring for 2-3 hours to uniformly mix the components to form fireproof door core plate slurry;
s103, carrying out mould pressing, curing and forming treatment on the fireproof door core plate slurry;
s2, filling the fireproof door core board prepared in the step S1 into the door main body to form the steel fireproof door.
By adopting the technical scheme, 1/2 mass of solvent is firstly added into a reaction vessel, then the micro silicon powder, the magnesium oxide and the magnesium sulfate are mixed according to the mass part ratio and then added into the reaction vessel, and simultaneously the mixture is stirred to be uniform to form a pre-mixture, the rest components are added and stirred to be uniform to form fireproof door core plate slurry, and finally the fireproof door core plate slurry is subjected to mould pressing, curing and forming treatment to obtain the fireproof door core plate, so that the fire door core plate is beneficial to the full dissolution and dispersion of the components in the fireproof door core plate, and better synergistic matching of the calcium phosphate, the barium sulfate and the dipentaerythritol is realized, the prepared fireproof door core plate has higher structural strength and better fire integrity, and the fire resistance of the steel fireproof door prepared by the fireproof door core plate is stronger; meanwhile, the preparation method is simple, convenient to manufacture, beneficial to improving the preparation efficiency of the steel fireproof door and saving time.
The present invention in a preferred example may be further configured to: the thickness of the fireproof door core plate formed in the step S103 is 20-50 mm.
By adopting the technical scheme, the thickness of the fireproof door core plate formed in the step S1033 is 20-50mm, so that the fireproof performance of the steel fireproof door formed by filling the fireproof door core plate in the door main body is stronger, the fire spread is better blocked, the burning smoke is prevented from flowing, and the fireproof integrity of the steel protective door is better.
In summary, the invention includes at least one of the following beneficial technical effects:
1. the core plate of the fire door has stronger structural strength, so that the core plate of the fire door is not easy to crack or pore after being subjected to flame combustion for a longer time, and the core plate of the fire door is filled in the door main body, thereby being beneficial to enhancing the fire-resistant integrity of the steel fire door and having stronger fire resistance;
2. the addition of the nano zinc oxide is beneficial to further improving the structural strength of the core plate of the fireproof door, so that the steel fireproof door filled with the core plate of the fireproof door can block the spread of fire for a longer time, and the fireproof performance of the steel fireproof door is better;
3. through adding polybenzimidazole, the mutual synergistic effect of calcium phosphate, barium sulfate and dipentaerythritol is further promoted, so that the compactness of the internal structure of the prepared fireproof door core plate is improved, the structural strength is better, and the phenomena of pores and burning-through are not easy to occur during long-time combustion, thereby being beneficial to enhancing the fire-resistant integrity of the steel fireproof door.
Drawings
FIG. 1 is a process flow diagram of the method of making a large steel insulating fire door with enhanced fire integrity in accordance with the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In the following examples, the micro silicon powder is silicon powder of hebei yirui alloy welding materials ltd.
In the following examples, magnesium oxide was obtained from Wuhan Huazhi scientific Biotech Co.
In the following examples, magnesium sulfate from cheng wang chemical limited, denna was used.
In the following examples, calcium phosphate from Nantong Runfeng petrochemical Co., Ltd is used.
In the following examples, barium sulfate of Shijiazhuandonao fireproofing material Co., Ltd was used.
In the following examples, dipentaerythritol from Wuhan La Na pharmaceutical chemical Co., Ltd was used as dipentaerythritol.
In the following examples, the dilute hydrochloric acid used in Zhengzhou Longda chemical products Co., Ltd.
In the following examples, the nano zinc oxide is obtained from Shanghai Huizi sub-nano New Material Co.
In the following examples, polybenzimidazole from Wuhanxin Jiali Biotech Co., Ltd was used.
In the following examples, white carbon black was prepared from Henan Deltai chemical products, Inc.
In the following examples, polyester powder obtained from Jiyuan chemical Co., Ltd, Dongguan was used.
Example 1
A preparation method of a large steel heat-insulation fireproof door with enhanced fire resistance integrity comprises the following steps: the method comprises the following steps:
s1, preparing the fireproof door core board:
s101, stirring at a rotating speed of 200r/min in a 200L stirring kettle, adding 12.5kg of dilute hydrochloric acid while stirring, uniformly mixing 15kg of micro silicon powder, 25kg of magnesium oxide and 20kg of magnesium sulfate, adding the mixture into the stirring kettle, stirring for 1.8 hours to uniformly mix, and simultaneously controlling the temperature to be 105 ℃ to form a premix;
s102, adding 12.5kg of dilute hydrochloric acid, 2kg of calcium phosphate, 1kg of barium sulfate and 5kg of dipentaerythritol into the premix obtained in the step S101 while stirring, and stirring for 2.5 hours to uniformly mix the materials to form fireproof door core board slurry;
s103, pouring the fireproof door core plate slurry into a mold, standing, solidifying at normal temperature and then forming to obtain a fireproof door core plate;
and S2, bonding the fireproof door core board prepared in the step S1 with the door leaf panels, and filling the fireproof door core board into the door main body formed by the two door leaf panels to form the steel fireproof door.
In this example, the particle size of the silica fume is 100 mesh, and the thickness of the molded fireproof door core plate is 40 mm.
Example 2
The difference from example 1 is that: 23kg of silica fume, 27kg of magnesium oxide, 23kg of magnesium sulfate, 3kg of calcium phosphate, 2kg of barium sulfate, 7kg of dipentaerythritol and 40kg of diluted hydrochloric acid are added into a stirring kettle.
Example 3
The difference from example 1 is that: 30kg of silica fume, 30kg of magnesium oxide, 25kg of magnesium sulfate, 5kg of calcium phosphate, 3kg of barium sulfate, 10kg of dipentaerythritol and 55kg of diluted hydrochloric acid are added into a stirring kettle.
Example 4
The difference from example 1 is that: 27kg of silica fume, 28kg of magnesium oxide, 22kg of magnesium sulfate, 4kg of calcium phosphate, 2.5kg of barium sulfate, 6kg of dipentaerythritol and 45kg of diluted hydrochloric acid are added into a stirring kettle.
Example 5
The difference from example 4 is that: 3kg of nano zinc oxide is also added into the stirring kettle.
Wherein 3kg of nano zinc oxide is added into the stirring kettle together with 22.5kg of dilute hydrochloric acid, 4kg of calcium phosphate, 2.5kg of barium sulfate and 6kg of dipentaerythritol in the step S102.
Example 6
The difference from example 4 is that: 4kg of nano zinc oxide is also added into the stirring kettle.
Wherein 4kg of nano zinc oxide is added into the stirring kettle together with 22.5kg of dilute hydrochloric acid, 4kg of calcium phosphate, 2.5kg of barium sulfate and 6kg of dipentaerythritol in the step S102.
Example 7
The difference from example 4 is that: 5kg of nano zinc oxide is also added into the stirring kettle.
Wherein, 5kg of nano zinc oxide is added into the stirring kettle together with 22.5kg of dilute hydrochloric acid, 4kg of calcium phosphate, 2.5kg of barium sulfate and 6kg of dipentaerythritol in the step S102.
Example 8
The difference from example 4 is that: 2kg of polybenzimidazole were also added to the stirred tank.
In step S102, 2kg of polybenzimidazole, 22.5kg of dilute hydrochloric acid, 4kg of calcium phosphate, 2.5kg of barium sulfate and 6kg of dipentaerythritol are added into a stirring kettle.
Example 9
The difference from example 4 is that: 3kg of polybenzimidazole were also added to the stirred tank.
In step S102, 3kg of polybenzimidazole, 22.5kg of dilute hydrochloric acid, 4kg of calcium phosphate, 2.5kg of barium sulfate and 6kg of dipentaerythritol are added into a stirring kettle.
Example 10
The difference from example 4 is that: 4kg of polybenzimidazole were also added to the stirred tank.
In step S102, 4kg of polybenzimidazole, 22.5kg of dilute hydrochloric acid, 4kg of calcium phosphate, 2.5kg of barium sulfate and 6kg of dipentaerythritol are added into a stirring kettle.
Example 11
The difference from example 4 is that: 0.5kg of white carbon black is also added into the stirring kettle.
Wherein, 0.5kg of white carbon black is added into the stirring kettle together with 22.5kg of dilute hydrochloric acid, 4kg of calcium phosphate, 2.5kg of barium sulfate and 6kg of dipentaerythritol in the step S102.
Example 12
The difference from example 4 is that: 1kg of white carbon black is also added into the stirring kettle.
Wherein, 1kg of white carbon black is added into the stirring kettle together with 22.5kg of dilute hydrochloric acid, 4kg of calcium phosphate, 2.5kg of barium sulfate and 6kg of dipentaerythritol in the step S102.
Example 13
The difference from example 4 is that: 2kg of white carbon black is also added into the stirring kettle.
Wherein, 2kg of white carbon black is added into the stirring kettle together with 22.5kg of dilute hydrochloric acid, 4kg of calcium phosphate, 2.5kg of barium sulfate and 6kg of dipentaerythritol in the step S102.
Example 14
The difference from example 4 is that: 4.5kg of polyester rubber powder is also added into the stirring kettle.
Wherein 4.5kg of polyester rubber powder is added into the stirring kettle together with 22.5kg of dilute hydrochloric acid, 4kg of calcium phosphate, 2.5kg of barium sulfate and 6kg of dipentaerythritol in the step S102.
Example 15
The difference from example 4 is that: 5.5kg of polyester rubber powder is also added into the stirring kettle.
Wherein, 5.5kg of polyester rubber powder is added into the stirring kettle together with 22.5kg of dilute hydrochloric acid, 4kg of calcium phosphate, 2.5kg of barium sulfate and 6kg of dipentaerythritol in the step S102.
Example 16
The difference from example 4 is that: 7kg of polyester rubber powder is also added into the stirring kettle.
Wherein, 7kg of polyester rubber powder is added into the stirring kettle together with 22.5kg of dilute hydrochloric acid, 4kg of calcium phosphate, 2.5kg of barium sulfate and 6kg of dipentaerythritol in the step S102.
Example 17
The difference from example 4 is that: 3kg of nano zinc oxide, 2kg of polybenzimidazole, 0.5kg of white carbon black and 4.5kg of polyester powder are also added into the stirring kettle.
Wherein 3kg of nano zinc oxide, 2kg of polybenzimidazole, 0.5kg of white carbon black and 4.5kg of polyester powder are added into the stirring kettle together with 22.5kg of dilute hydrochloric acid, 4kg of calcium phosphate, 2.5kg of barium sulfate and 6kg of dipentaerythritol in the step S102.
Example 18
The difference from example 4 is that: 4kg of nano zinc oxide, 3kg of polybenzimidazole, 1kg of white carbon black and 5.5kg of polyester powder are also added into the stirring kettle.
Wherein 4kg of nano zinc oxide, 3kg of polybenzimidazole, 1kg of white carbon black and 5.5kg of polyester powder are added into the stirring kettle together with 22.5kg of dilute hydrochloric acid, 4kg of calcium phosphate, 2.5kg of barium sulfate and 6kg of dipentaerythritol in the step S102.
Example 19
The difference from example 4 is that: 5kg of nano zinc oxide, 4kg of polybenzimidazole, 2kg of white carbon black and 7kg of polyester rubber powder are also added into the stirring kettle.
Wherein 5kg of nano zinc oxide, 4kg of polybenzimidazole, 2kg of white carbon black and 7kg of polyester rubber powder are added into the stirring kettle together with 22.5kg of dilute hydrochloric acid, 4kg of calcium phosphate, 2.5kg of barium sulfate and 6kg of dipentaerythritol in the step S102.
Comparative example 1
The difference from example 4 is that: barium sulfate and dipentaerythritol are not added into the fire door core board.
Comparative example 2
The difference from example 4 is that: the components of calcium phosphate and dipentaerythritol are not added into the fire door core board.
Comparative example 3
The difference from example 4 is that: the components of calcium phosphate and barium sulfate are not added into the core plate of the fire door.
Comparative example 4
The difference from example 4 is that: the component calcium phosphate is not added into the core plate of the fireproof door.
Comparative example 5
The difference from example 4 is that: barium sulfate is not added into the core plate of the fire door.
Comparative example 6
The difference from example 4 is that: the fire door core board is not added with dipentaerythritol.
Comparative example 7
The difference from example 4 is that: the components of calcium phosphate, barium sulfate and dipentaerythritol are not added into the core board of the fire door.
Experiment 1
According to GB/T7633-2008 & methods for testing fire resistance of doors and roller shutters, samples of the fire-proof door core boards prepared in the above examples and comparative examples are respectively subjected to a test of fire resistance integrity;
meanwhile, samples with the thickness of 20mm of the fireproof door core plate prepared according to the using amount of the components in the example 4 are used as a control group 1 to be tested;
samples with the thickness of 50mm of the fireproof door core plate prepared according to the using amount of the components in the example 4 are used as a control group 2 for testing;
samples with the thickness of 10mm of the fireproof door core plate prepared according to the using amount of the components in the example 4 are used as a control group 3 for testing;
a sample having a thickness of 60mm of the fire door core was prepared at the amount of each component in example 4 and tested as a control 4.
Experiment 2
Taking the sample with the surface size of 0.1m x 0.1m of the fireproof door core board prepared in the above examples and comparative examples, placing the sample on a clamp of a pressure testing machine (the pressure testing machine adopts a pressure testing machine with the model number YJW-10000KN of Beijing Longchen Wei Instrument and Equipment GmbH), operating the pressure testing machine to apply pressure to the center of the sample, detecting the pressure capable of being born in the thickness direction of the sample, and recording the pressure (KN) applied when the sample cracks;
meanwhile, samples with the thickness of 20mm of the fireproof door core plate prepared according to the using amount of the components in the example 4 are used as a control group 1 to be tested;
samples with the thickness of 50mm of the fireproof door core plate prepared according to the using amount of the components in the example 4 are used as a control group 2 for testing;
samples with the thickness of 10mm of the fireproof door core plate prepared according to the using amount of the components in the example 4 are used as a control group 3 for testing;
a sample having a thickness of 60mm of the fire door core was prepared at the amount of each component in example 4 and tested as a control 4.
The data of the above experiment are shown in Table 1
TABLE 1
According to the comparison of the data of the embodiment 4 and the comparative examples 1 to 7 in the table 1, only when the calcium phosphate, the barium sulfate and the dipentaerythritol are cooperatively matched with each other, the structural strength of the fireproof door core plate is stronger, so that the fire resistance integrity of the steel fireproof door prepared by the fireproof door core plate is stronger, and further, when a fire disaster occurs, the steel fireproof door is not easy to lose the fire resistance integrity due to cracks or pores generated by the burning of the fireproof door core plate by flame, so that the flame and the burning smoke are better blocked, the evacuation time of people is prolonged, and the fire resistance is better; when any component is lacked, the structural strength of the core plate of the fire door is easily affected, so that the fire-resistant integrity of the steel protective door is low.
According to the comparison of the data of the embodiment 4 and the embodiments 5 to 7 in the table 1, the addition of the nano zinc oxide is beneficial to promoting better synergistic cooperation of the calcium phosphate, the barium sulfate and the dipentaerythritol, and further improving the structural strength of the core plate of the fire door, so that the fire resistance integrity of the steel fire door is improved, the flame blocking time is longer, and the fire resistance is better.
According to the comparison of the data of example 4 and examples 8-10 in table 1, the addition of polybenzimidazole further promotes the synergistic interaction of calcium phosphate, barium sulfate and dipentaerythritol, so that the internal structure of the prepared fireproof door core board has higher compactness and better structural strength, and the fire-resistant integrity of the steel fireproof door is further enhanced.
According to the comparison of the data of the embodiment 4 and the embodiments 11 to 13 in the table 1, the addition of the white carbon black is beneficial to better mutual cooperation between the calcium phosphate, the barium sulfate and the dipentaerythritol, so that the structural stability of the prepared fire door core plate is improved, and the fire door core plate is not easy to crack and deform when a fire disaster occurs, so that the fire door core plate has better structural strength, is not easy to burn through and has better fire resistance integrity.
According to the comparison between the data of example 4 and examples 14-16 in table 1, the prepared fire door core board has higher compactness by adding the polyester rubber powder, so that the overall structural strength of the steel fire door made of the fire door core board is enhanced, the fire integrity is better, and the fire resistance is enhanced.
According to the comparison of the data of the examples 17 to 19 in table 1, the addition of the nano zinc oxide, the polybenzimidazole, the white carbon black and the polyester adhesive powder into the fire door core plate is beneficial to further enhancing the fire resistance integrity of the fire door core plate, so that the steel fire door has longer flame and smoke blocking time and more remarkable fire resistance.
According to the comparison of the data of the embodiment 4 and the comparison groups 1-4 in the table 1, the prepared fireproof door core plate can better play a role by controlling the thickness of the fireproof door core plate, so that the fire resistance integrity of the steel fireproof door is better when the steel fireproof door is used, and the time for people to evacuate is more sufficient.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (9)
1. The utility model provides a fire door is prevented to large-scale steel heat insulation of reinforcing fire-resistant integrality, includes the door main part, the inside of door main part is provided with prevents fire door core, its characterized in that: the fireproof door core plate comprises the following components in parts by mass:
15-30 parts of micro silicon powder;
25-30 parts of magnesium oxide;
20-25 parts of magnesium sulfate;
2-5 parts of calcium phosphate;
1-3 parts of barium sulfate;
5-10 parts of dipentaerythritol;
and 25-55 parts of a solvent.
2. The large steel insulating and fire-proof door with enhanced fire resistance as recited in claim 1, further comprising: the fireproof door core plate further comprises the following components in parts by mass:
3-5 parts of nano zinc oxide.
3. A large steel insulating and fire-resistant door with enhanced fire integrity as claimed in any one of claims 1-2, wherein: the fireproof door core plate further comprises the following components in parts by mass:
2-4 parts of polybenzimidazole.
4. A large steel insulating and fire-resistant door with enhanced fire integrity as claimed in any one of claims 1-2, wherein: the fireproof door core plate further comprises the following components in parts by mass:
0.5-2 parts of white carbon black.
5. A large steel insulating and fire-resistant door with enhanced fire integrity as claimed in any one of claims 1-2, wherein: the fireproof door core plate further comprises the following components in parts by mass:
4.5-7 parts of polyester powder.
6. The large steel insulating and fire-proof door with enhanced fire resistance as recited in claim 1, further comprising: the particle size of the micro silicon powder is 60-200 meshes.
7. The large steel insulating and fire-proof door with enhanced fire resistance as recited in claim 1, further comprising: the solvent is dilute hydrochloric acid.
8. A method of making a large steel insulating fire door with enhanced fire integrity as claimed in any one of claims 1-7, wherein: the method comprises the following steps:
s1, preparing the fireproof door core board:
s101, adding 1/2 amounts of solvent into a reaction vessel, mixing the micro silicon powder, the magnesium oxide and the magnesium sulfate, adding into the reaction vessel, and stirring for 1.5-2 hours to uniformly mix the materials to form a premix;
s102, sequentially adding the rest components into the premix obtained in the step S101 while stirring, and stirring for 2-3 hours to uniformly mix the components to form fireproof door core plate slurry;
s103, carrying out mould pressing, curing and forming treatment on the fireproof door core plate slurry;
s2, filling the fireproof door core board prepared in the step S1 into the door main body to form the steel fireproof door.
9. The method of making a large steel insulating and fire-proof door with enhanced fire-resistant integrity as claimed in claim 8, wherein: the thickness of the fireproof door core plate formed in the step S103 is 20-50 mm.
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| CN202010177461.1A CN111348887A (en) | 2020-03-13 | 2020-03-13 | Large steel heat-insulation fireproof door capable of enhancing fire resistance integrity |
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| CN202010177461.1A CN111348887A (en) | 2020-03-13 | 2020-03-13 | Large steel heat-insulation fireproof door capable of enhancing fire resistance integrity |
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|---|---|---|---|---|
| CN1098394A (en) * | 1994-07-01 | 1995-02-08 | 薛耀民 | Magnesite cementing material and its use |
| CN102041871A (en) * | 2010-11-22 | 2011-05-04 | 中国科学院青海盐湖研究所 | Lightly-calcined-dolomite sandwich composite partition wall plate and manufacturing method thereof |
| CN105601228A (en) * | 2015-12-30 | 2016-05-25 | 卓达新材料科技集团威海股份有限公司 | S-O-Mg fireproof door core board produced in rolling and flattening line |
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2020
- 2020-03-13 CN CN202010177461.1A patent/CN111348887A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1098394A (en) * | 1994-07-01 | 1995-02-08 | 薛耀民 | Magnesite cementing material and its use |
| CN102041871A (en) * | 2010-11-22 | 2011-05-04 | 中国科学院青海盐湖研究所 | Lightly-calcined-dolomite sandwich composite partition wall plate and manufacturing method thereof |
| CN105601228A (en) * | 2015-12-30 | 2016-05-25 | 卓达新材料科技集团威海股份有限公司 | S-O-Mg fireproof door core board produced in rolling and flattening line |
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| Title |
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| 中国菱镁行业协会组编: "《镁质胶凝材料及制品技术》", 31 January 2016, 中国建材工业出版社 * |
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Application publication date: 20200630 |