CN105948693B - Anti-fire door core board and the preparation method and application thereof - Google Patents
Anti-fire door core board and the preparation method and application thereof Download PDFInfo
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- CN105948693B CN105948693B CN201610298968.6A CN201610298968A CN105948693B CN 105948693 B CN105948693 B CN 105948693B CN 201610298968 A CN201610298968 A CN 201610298968A CN 105948693 B CN105948693 B CN 105948693B
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- fire
- door core
- magnesia
- magnesium chloride
- door
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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
- C04B28/30—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 magnesium cements or similar cements
- C04B28/32—Magnesium oxychloride cements, e.g. Sorel cement
-
- 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
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
-
- 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
-
- 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
- E06B5/161—Profile members 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The invention discloses a kind of anti-fire door core boards and its preparation method and application.Anti-fire door core board of the present invention includes fire resistant doorsets sandwich layer and the glass fire resistant coating for being incorporated in the fire-resistant door core layer surface.Wherein, the fire resistant doorsets sandwich layer include mass ratio be (30-45): (15-35): (5-15): magnesia, magnesium chloride and the attapulgite and compound foaming agent of (0.1-0.5), the glass fire resistant coating with a thickness of 5-50 μm.Anti-fire door core board High anti bending strength of the present invention, stable structure, fire protecting performance are good.The stability of anti-fire door core board performance of the present invention has been effectively ensured in preparation method, improves its fire protecting performance.
Description
Technical field
The invention belongs to the field of building materials, and in particular to a kind of anti-fire door core board and preparation method thereof and the fire-resistant door core
The application of plate.
Background technique
The generation of 812 Binhai New Area in Tianjin explosion accidents, causes 165 people wrecked, 8 people's lost contacts, direct economic loss
68.66 hundred million yuan.This huge disaster while making people in bitter grief, also makes requirement of the relevant departments to fire proofing material more
Strictly.In numerous construction materials, fire resistant doorsets are one of the important fire prevention links in fire prevention link.
Currently, fire resistant doorsets mostly use anti-fire door core board to make greatly, it is well known that the fire resistant doorsets made of anti-fire door core board
Skeletal support can be not only saved, the manufacturing process of fire resistant doorsets can also be simplified, improves production efficiency, reduces manufacturing cost.But
It is that for two kinds of current anti-fire door core boards, the first is the door panel using aluminium silicate wool as main material, due to its flue gas
National standard is not achieved in toxicity index, is prohibited use now；Another kind is using expanded perlite as main material
Door panel, after the intensity difference of itself of perlite, with steel plate or multi-layer board bonding, the machining deformation of sheet metal, heat become
The factors such as shape and collision deformation, are easy to cause anti-fire door core board fragmentation, to influence the overall performance of fire resistant doorsets.Multi-layer board
After the bonding of core material plate made of perlite, in transport, installation process, it is easy to rupture core material plate by external force collision, is being sent out
When calamity of lighting a fire, when the multi-layer board afterburnt, fire resistant doorsets, which just voluntarily fall apart, loses fireproofing function.
There are also a kind of fire proofing materials for being usually used in preparing fire-resistant door core --- and magnesite material, magnesite foamed fireproofing Men Xin is new
The non-ignitable fireproof heat insulating product of a generation.Mainly natural chlorine oxygen magnesium inorganic environment-friendly material, through mechanical continuous productive process compacting it is compound and
At.It has it is non-ignitable not quick-fried, it is water-fast, oil resistant, resistant to chemical etching, the features such as nontoxic and high mechanical strength.But its there is also
Certain problem, (mainly chloride ion) containing a large amount of halide ions in magnesite material ingredient, thus in the environment of hot humid
The moisture absorption easily occurs, returns halogen phenomenon, it is serious to corrode fire resistant doorsets steel matrix, it causes largely to waste.
In addition, the anti-fire door core board flexural strength for making a general survey of domestic production is low, fire protecting performance is poor, during high temperature baking
The problems such as structure is easily collapsed.
Summary of the invention
It is an object of the invention to overcome above-mentioned the shortcomings of the prior art, a kind of anti-fire door core board and its preparation are provided
Method and its application exist there is also the moisture absorption to solve existing anti-fire door core board, return halogen phenomenon and flexural strength low and high temperature baking
The technical issues of structure is easily collapsed in the process.
In order to achieve the above-mentioned object of the invention, an aspect of of the present present invention provides a kind of anti-fire door core board.The fire-resistant door core
A kind of anti-fire door core board of plate, it is characterised in that: including
Fire resistant doorsets sandwich layer, the fire resistant doorsets sandwich layer include magnesia, magnesium chloride and attapulgite and compound foaming agent,
And the magnesia, magnesium chloride, attapulgite and compound foaming agent mass ratio be (30-45): (15-35): (5-15):
(0.1-0.5)；
Glass fire resistant coating, the glass fire resistant coating are incorporated in the fire-resistant door core layer surface.
As an aspect of of the present present invention, a kind of preparation method of anti-fire door core board is provided.The preparation includes following step
It is rapid:
Mass ratio according to magnesia, magnesium chloride, attapulgite and compound foaming agent is (30-45): (15-35): (5-
15): (0.1-0.5) weighs magnesia, magnesium chloride, attapulgite and compound foaming agent raw material respectively；
The weighed magnesia, magnesium chloride, attapulgite and compound foaming agent are added in solvent and carried out at mixing
Reason forms paste mixture；
The paste mixture is subjected to molded curing molding, forms fire resistant doorsets sandwich layer；
Glass fire resistant coating is formed in the fire-resistant door core layer surface.
As another aspect of the present invention, anti-fire door core board of the present invention or fire prevention prepared by preparation method of the present invention are provided
Application of the door panel in fire-proof wooden door, fire resistance steel door, security door, prized up-proof door, entering house door, art and craft door.
Compared with prior art, rodlike concave convex rod local soil type is added in anti-fire door core board of the present invention in contained fire resistant doorsets sandwich layer
Point, lead under the synergistic effect of other components, the synergistic effect between each component is played, so that the anti-folding of anti-fire door core board of the present invention
Intensity is high.The glass fire resistant coating that fire-resistant door core layer surface is arranged in will form one layer of hard glass protection in thermal histories
Film further improves the flexural strength and structural stability of anti-fire door core board of the present invention while absorbing external heat.Separately
Outside, under fire resistant doorsets sandwich layer and glass fire resistant coating collective effect, assign the excellent fire protecting performance of anti-fire door core board of the present invention with
Environmental-protecting performance, and avoid the selection to magnesite material avoids the anti-fire door core board moisture absorption of the present invention, returns halogen phenomenon etc. and is bad existing
As occurring.
After anti-fire door core board preparation method of the present invention need to only form the paste mixture molded curing containing attapulgite
Glass fire resistant coating is formed in the fire-resistant door core layer surface of formation, not only flexural strength and structure are steady for the anti-fire door core board of preparation
Qualitative high and excellent fire protecting performance, and its those performance can also be made to stablize.In addition, the process conditions of the preparation method are easy
Control, it is low for equipment requirements, its production efficiency is improved, its production cost is reduced.
Just because of anti-fire door core board of the present invention and preparation method thereof have the advantages that above-mentioned performance and, therefore, by its
Fire-proof wooden door, fire resistance steel door, security door, prized up-proof door, entering house door, in art and craft door in application, to prevent fires containing the present invention
Fire-proof wooden door, fire resistance steel door, security door, prized up-proof door, entering house door, the art and craft door of door panel have excellent fire protecting performance,
And intensity is high and stable structure, and it is at low cost.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
The quality of Related Component noted in the disclosure of the embodiment of the present invention not only may refer to the specific of each component
Content can also indicate the proportionate relationship of quality between each component, therefore, as long as according to specification relevant group of the embodiment of the present invention
The content divided is scaled up or is reduced within specification of embodiment of the present invention scope of disclosure.Specifically, the present invention is real
Applying example quality described in the specification can be mass unit well known to the chemical fields such as μ g, mg, g, kg.
On the one hand, the embodiment of the present invention provides a kind of fire resistant doorsets good with High anti bending strength, stable structure, fire protecting performance
Core plate.In one embodiment, which includes fire resistant doorsets sandwich layer and glass fire resistant coating.
Wherein, as one embodiment of the invention, the fire resistant doorsets sandwich layer includes magnesia, magnesium chloride and attapulgite
And compound foaming agent ingredient, and the magnesia, magnesium chloride, attapulgite and compound foaming agent mass ratio be (30-
45):(15-35):(5-15):(0.1-0.5).It is rodlike recessed particular by being added by the control to fire-resistant door core composition of layer
Tu Bang local soil type point, have the effect of it is certain be similar to fiber reinforced, lead under the synergistic effect of other components, performance each group
/ synergistic effect so that anti-fire door core board High anti bending strength of the present invention.
In certain embodiments, magnesia, magnesium chloride, attapulgite and compound hair contained by the fire resistant doorsets sandwich layer
Infusion can select related component selected by hereinafter fire resistant doorsets sandwich layer preparation method, in order to save length, herein no longer
It repeats.In addition, the fire resistant doorsets sandwich layer can prepare to be formed according to method hereafter, specifically such as will containing magnesia, magnesium chloride,
Attapulgite and compound foaming agent and solvent are configured to paste mixture, then by paste mixture carry out molded curing at
Type.
Glass fire resistant coating contained by above-mentioned anti-fire door core board is incorporated in the fire-resistant door core layer surface, is implemented one
In example, the mode that glass fire resistant coating is incorporated in the fire-resistant door core layer surface can be using coating or use other can
Formed in the method for forming glass fire resistant coating, other can be formed glass fire resistant coating method can with but not only hot pressing
The methods of close.As long as enabling to glass fire resistant coating to be incorporated in any mode in fire-resistant door core layer surface, in this hair
Bright scope of disclosure.The glass fire resistant coating is combined in fire-resistant door core layer surface, when anti-fire door core board of the embodiment of the present invention exists
In thermal histories, which will form one layer of hard glass protection film, into one while absorbing external heat
Step improves the flexural strength and structural stability of anti-fire door core board of the embodiment of the present invention.
In one embodiment, the thickness control of the glass fire resistant coating is 5-50 μm.It is applied by adjusting glass fire prevention
The thickness of layer, which is realized, controls the heated thickness for being formed by glass protection film, to improve fire resistant doorsets of the embodiment of the present invention
The flexural strength and structural stability of core plate.
It can be seen from the above, anti-fire door core board of the embodiment of the present invention is in fire resistant doorsets sandwich layer and glass fire resistant coating collective effect
Under, so that the two plays synergistic effect, not only assign anti-fire door core board of the embodiment of the present invention high flexural strength and stable structure
Property, it is to confer to its excellent fire protecting performance and environmental-protecting performance, and avoid the selection to magnesite material, avoids fire prevention of the present invention
The door panel moisture absorption returns the generation of the bad phenomenons such as halogen phenomenon.
On the one hand, on the basis of anti-fire door core board described above, the embodiment of the invention also provides the embodiment of the present invention
A kind of preparation method of anti-fire door core board.In one embodiment, the preparation method of the anti-fire door core board, includes the following steps:
S01: ingredient contained by the fire resistant doorsets sandwich layer of anti-fire door core board weighs magnesia, chlorination respectively as described above
Magnesium, attapulgite and compound foaming agent raw material；
S02: the weighed magnesia, magnesium chloride, attapulgite and compound foaming agent are added in solvent and mixed
Material processing, forms paste mixture；
S03: the paste mixture is subjected to molded curing molding, forms fire resistant doorsets sandwich layer；
S04: glass fire resistant coating is formed in the fire-resistant door core layer surface.
Specifically, weighed magnesia, magnesium chloride, attapulgite and each raw material of compound foaming agent in above-mentioned steps S01
Mass ratio as above to fire resistant doorsets sandwich layer statement described in, magnesia, magnesium chloride, attapulgite and compound foaming agent
Mass ratio be (30-45): (15-35): (5-15): (0.1-0.5).
In one embodiment, the fineness of the magnesia is 500 mesh, is 500 meshes.In another specific implementation
In example, the magnesium chloride selects magnesium chloride hexahydrate.In still another embodiment, the compound foaming agent is the compound hair of AB type
Infusion.
Mixing treatment in above-mentioned steps S02 includes the following steps:
S021: the weighed magnesium chloride hexahydrate, attapulgite, compound foaming agent are added in solvent and carry out the first rank
The mixing treatment of section, obtains foam-like mixture；
S022: the part of the weighed magnesia is added in the foam-like mixture to the mixing for carrying out second stage
Processing, obtains lean mixture；
The remainder of the magnesia: being added in the lean mixture mixing treatment for carrying out the phase III by S023,
Obtain the paste mixture.
Wherein, solvent described in step S021 is to play the role of solvent carrier, enable each component in a solvent
It is fully dispersed, to ultimately form stable paste mixture.Therefore, as long as solvent carrier can be played the role of, there is energy
All solvents for generating chemical reaction between solvent and each component are enough avoided to may be incorporated for the present invention, such as in specific embodiment
In, which can be but not only water.
In one embodiment, the mixing treatment of first stage described in step S021 is using high-speed stirred, such as height
The rate of speed stirring is 500-1000r/min, and the time is at least 5min.
In step S022, magnesia is that part is added in the foam-like mixture prepared to step S021, separately
A part is added in the lean mixture in next step S023.In one embodiment, in step S022, be by
The mass percent 80% for weighing magnesia is added in the foam-like mixture prepared to step S021.In another embodiment
In, the mixing treatment of second stage described in step S022 is to continue with using high-speed stirred, as the rate of high-speed stirred is
500-1000r/min, time are at least 5min.
In step S023, as one embodiment of the invention, the mixing treatment of phase III is to use moderate-speed mixer,
If the rate of moderate-speed mixer is 200-600r/min, the time is at least 5min.
By above-mentioned mixing treatment, so that each raw material component in a solvent can be fully dispersed, so that final preparation
Paste mixture dispersion stablize, then can be improved the quality stability of the fire resistant doorsets sandwich layer of preparation.
The molding of molded curing described in above-mentioned steps S03 is that the paste mixture for preparing step S02 adds to fire resistant doorsets
In the mold of sandwich layer, under the conditions ofs certain pressure etc., so that the paste mixture carries out curing molding in mold.It is real one
It applies in example, the molding condition of molded curing are as follows: normal temperature cure, in a particular embodiment, curing time is but not only
For 24 hours, it shall be guaranteed that premised on paste mixture sufficiently solidifies in a mold.
In above-mentioned steps S04, the method for forming glass fire resistant coating is as described above, can be using coating or adopts
Formed with the method that other can form glass fire resistant coating, other can be formed glass fire resistant coating method can with but not only
It is only the methods of hot pressing.As long as enable to glass fire resistant coating to be incorporated in any mode in fire-resistant door core layer surface,
In range disclosed by the invention.
Therefore, the preparation method of aforementioned present invention anti-fire door core board is preferably by raw material components sequence mixing treatment, so that
Each component can be fully dispersed, and plays the synergistic effect between each component, so that anti-fire door core board of the embodiment of the present invention has
The good performance characteristics of High anti bending strength, fire protecting performance.The glass fire resistant coating of fire-resistant door core plate surface is formed in thermal histories
In will form one layer of hard glass protection film, further improve anti-fire door core board of the present invention while absorbing external heat
Flexural strength and structural stability.In addition, the process conditions of the preparation method are easy to control, and it is low for equipment requirements, improve it
Production efficiency reduces its production cost.
Just because of anti-fire door core board of the embodiment of the present invention and preparation method thereof with it is above-mentioned such as with High anti bending strength,
Fire protecting performance is good, the performances such as stable structure and advantage, therefore, by it in fire-proof wooden door, fire resistance steel door, security door, pick-proof
Door, entering house door, in art and craft door in application, making the fire-proof wooden door containing anti-fire door core board of the present invention, fire resistance steel door, antitheft
Door, prized up-proof door, entering house door, art and craft door have excellent fire protecting performance, and intensity height and stable structure, at low cost, accordingly mention
The performance of the high Related product using anti-fire door core board of the embodiment of the present invention.
Anti-fire door core board of the present invention and preparation method thereof is described in detail below in conjunction with particular preferred embodiment.
Embodiment 1
The present embodiment provides a kind of anti-fire door core boards and the preparation method and application thereof.The present embodiment fireproof core board includes fire prevention
Door sandwich layer and the glass fire resistant coating for being incorporated in the fire-resistant door core layer surface.Wherein, the fire resistant doorsets sandwich layer include magnesia,
Magnesium chloride and attapulgite and compound foaming agent, and the magnesia, magnesium chloride, attapulgite and compound foaming agent
Quality is such as shown in the ratio in preparation method, the glass fire resistant coating with a thickness of 5 μm
The present embodiment fireproof core board the preparation method is as follows:
S11: 12kg magnesium chloride hexahydrate, 2.5kg concave convex rod, 0.15kg compound foaming agent and 16Kg water are weighed, stirring is added
In machine, high-speed stirred 5min obtains foam-like mixture；
S12: it weighs 20kg magnesia and is added in above-mentioned foam-like mixture, continue high-speed stirred 10min, obtain dilute mixing
Object；
S13: continue to weigh in the above-mentioned lean mixture of 2.5kg magnesia addition, moderate-speed mixer 15min finally obtains paste
Mixture；
S14: the paste mixture is poured into mold, and is coated uniformly in mold, anti-fire door core board is obtained
Blank；
S15: the anti-fire door core board blank being stood, is demoulded after making its normal temperature cure, obtains molding anti-fire door core board；
S16: weighing 0.5kg glass fire resistant coating, is coated onto the molding fire-resistant door core plate surface, is then allowed to stand wind
It is dry, obtain semi-finished product anti-fire door core board；
S17: semi-finished product anti-fire door core board is cut into size needed for product with cutting machine, obtains finished product anti-fire door core board.
Embodiment 2
The present embodiment provides a kind of anti-fire door core boards and preparation method thereof.The present embodiment fireproof core board includes fire resistant doorsets sandwich layer
With the glass fire resistant coating for being incorporated in the fire-resistant door core layer surface.Wherein, the fire resistant doorsets sandwich layer includes magnesia, magnesium chloride
With attapulgite and compound foaming agent, and the magnesia, magnesium chloride, attapulgite and compound foaming agent mass ratio
Such as see the ratio in preparation method, the glass fire resistant coating with a thickness of 50 μm.
The present embodiment fireproof core board the preparation method is as follows:
S21: 15kg magnesium chloride hexahydrate, 4kg concave convex rod, 0.2kg compound foaming agent and 12Kg water are weighed, blender is added
In, high-speed stirred 5min obtains foam-like mixture；
S22: it weighs 12kg magnesia and is added in above-mentioned foam-like mixture, continue high-speed stirred 10min, obtain dilute mixing
Object；
S23: continue to weigh in the above-mentioned lean mixture of 3kg magnesia addition, it is mixed to finally obtain paste by moderate-speed mixer 15min
Close object；
S24: the paste mixture is poured into mold, and is coated uniformly in mold, anti-fire door core board is obtained
Blank；
S25: the anti-fire door core board blank being stood, is demoulded after making its normal temperature cure, obtains molding anti-fire door core board；
S26: weighing 0.5kg glass fire resistant coating, is coated onto the molding fire-resistant door core plate surface, is then allowed to stand wind
It is dry, obtain semi-finished product anti-fire door core board；
S27: semi-finished product anti-fire door core board is cut into size needed for product with cutting machine, obtains finished product anti-fire door core board.
Embodiment 3
The present embodiment provides a kind of anti-fire door core boards and preparation method thereof.The present embodiment fireproof core board includes fire resistant doorsets sandwich layer
With the glass fire resistant coating for being incorporated in the fire-resistant door core layer surface.Wherein, the fire resistant doorsets sandwich layer includes magnesia, magnesium chloride
With attapulgite and compound foaming agent, and the magnesia, magnesium chloride, attapulgite and compound foaming agent mass ratio
Such as see the ratio in preparation method, the glass fire resistant coating with a thickness of 25 μm.
The present embodiment fireproof core board the preparation method is as follows:
S31: 12kg magnesium chloride hexahydrate, 6kg concave convex rod, 0.25kg compound foaming agent and 18Kg water are weighed, blender is added
In, high-speed stirred 5min obtains foam-like mixture；
S32: it weighs 22kg magnesia and is added in above-mentioned foam-like mixture, continue high-speed stirred 10min, obtain dilute mixing
Object；
S33: continue to weigh in the above-mentioned lean mixture of 5kg magnesia addition, it is mixed to finally obtain paste by moderate-speed mixer 15min
Close object；
S34: the paste mixture is poured into mold, and is coated uniformly in mold, anti-fire door core board is obtained
Blank；
S35: the anti-fire door core board blank being stood, is demoulded after making its normal temperature cure, obtains molding anti-fire door core board；
S36: weighing 0.5kg glass fire resistant coating, is coated onto the molding fire-resistant door core plate surface, is then allowed to stand wind
It is dry, obtain semi-finished product anti-fire door core board；
S37: semi-finished product anti-fire door core board is cut into size needed for product with cutting machine, obtains finished product anti-fire door core board.
Finished product anti-fire door core board in Examples 1 to 3 learns after tested, density 280-380kg/m3, flexural strength 2-
8Mpa, 800-1000 DEG C of temperature, fire endurance 1-2h of resistance to combustion, flue gas toxity grade reaches quasi- safe second level (ZA2).Therefore, originally
The performance characteristics that inventive embodiments anti-fire door core board has High anti bending strength, fire protecting performance good.
It is that anti-fire door core board provided by the present invention and preparation method thereof is described in detail above.It is used herein
Principle and implementation of the present invention are described for specific embodiment, and the explanation of embodiment is merely used to help understand this
The method and its core concept of invention, the foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention,
Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in of the invention
Within protection scope.
Claims (6)
1. a kind of anti-fire door core board, it is characterised in that: including
Fire resistant doorsets sandwich layer, the fire resistant doorsets sandwich layer are made of magnesia, magnesium chloride and attapulgite and compound foaming agent, and
The magnesia, magnesium chloride, attapulgite and compound foaming agent mass ratio be (30-45): (15-35): (5-15):
(0.1-0.5)；The fineness of the magnesia is 500 mesh, and the magnesium chloride selects magnesium chloride hexahydrate, and the compound foaming agent is
AB type composite foamable agent；
Glass fire resistant coating, the glass fire resistant coating are incorporated in the fire-resistant door core layer surface, the glass fire resistant coating
With a thickness of 5-50 μm.
2. a kind of preparation method of anti-fire door core board, which comprises the steps of:
It is (30-45): (15-35): (5-15) according to the mass ratio of magnesia, magnesium chloride, attapulgite and compound foaming agent:
(0.1-0.5) weighs magnesia, magnesium chloride, attapulgite and compound foaming agent raw material respectively；
The weighed magnesia, magnesium chloride, attapulgite and compound foaming agent are added in solvent and carry out mixing treatment, shape
At paste mixture；
The paste mixture is subjected to molded curing molding, forms fire resistant doorsets sandwich layer；
Glass fire resistant coating is formed in the fire-resistant door core layer surface；
Wherein, the fineness of the magnesia is 500 mesh, and the magnesium chloride selects magnesium chloride hexahydrate, and the compound foaming agent is
AB type composite foamable agent；Formed the glass fire resistant coating with a thickness of 5-50 μm.
3. preparation method as claimed in claim 2, which is characterized in that the mixing treatment includes the following steps:
The weighed magnesium chloride hexahydrate, attapulgite, compound foaming agent are added in solvent to the mixing for carrying out the first stage
Processing, obtains foam-like mixture；
The part of the weighed magnesia is added in the foam-like mixture to the mixing treatment for carrying out second stage, is obtained
Lean mixture；
The remainder of the magnesia is added in the lean mixture to the mixing treatment for carrying out the phase III, obtains the cream
Shape mixture.
4. preparation method according to claim 2, it is characterised in that: the molding condition of molded curing are as follows: room temperature is solid
Change.
5. according to any preparation method of claim 2-4, it is characterised in that: the solvent is water.
6. anti-fire door core board according to claim 1 is prevented by any preparation method preparation of claim 2-5
Application of the vent core plate in fire-proof wooden door, fire resistance steel door, security door, prized up-proof door, entering house door, art and craft door.
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| CN109516762A (en) * | 2018-12-13 | 2019-03-26 | 广东国汇新材料有限公司 | Chlorine oxygen magnesium anti-fire door core board and the preparation method and application thereof |
| CN109574618A (en) * | 2018-12-13 | 2019-04-05 | 广东国汇新材料有限公司 | Modified magnesite anti-fire door core board and the preparation method and application thereof |
| CN112780164A (en) * | 2021-01-07 | 2021-05-11 | 杭州科定木业有限公司 | Composite fireproof door core and manufacturing process thereof |
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| CN101423349A (en) * | 2008-11-24 | 2009-05-06 | 吴志棠 | Foaming magnesium oxychloride cement and use method thereof |
| CN101581189A (en) * | 2009-06-24 | 2009-11-18 | 于新民 | Energy-saving environment-friendly light security fire door core plate and manufacturing method thereof |
| CN102464469B (en) * | 2010-11-19 | 2013-12-04 | 山东鲁阳股份有限公司 | Dry formed hydrophobic ceramic fiber building fireproof plate and preparation method thereof |
| CN102390973A (en) * | 2011-08-12 | 2012-03-28 | 南京中聚新型材料有限公司 | Magnesium oxychloride cementitious mill tailings |
| CN102775123A (en) * | 2012-04-13 | 2012-11-14 | 杨永 | Fireproof door core plate |
| CN103755331A (en) * | 2013-10-17 | 2014-04-30 | 昆山市奋发绝缘材料有限公司 | Fireproof door sandwich board material and manufacturing method thereof |
| CN104892027B (en) * | 2015-05-13 | 2017-08-25 | 成都市和乐门业有限公司 | A kind of method of enhanced foaming cement anti-fire door core board performance |
| CN105130350A (en) * | 2015-08-13 | 2015-12-09 | 惠州美森板业有限公司 | Novel inorganic decoration base material plate and preparation method thereof |
| CN105272133A (en) * | 2015-09-29 | 2016-01-27 | 马鞍山杰创塑胶科技有限公司 | High-shock resistance aerated building block and making method thereof |
| CN105503242B (en) * | 2015-12-30 | 2018-01-30 | 卓达新材料科技集团威海股份有限公司 | A kind of magnesium oxysulfide anti-fire door core board for rolling out line production |
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