CN107082617A - A kind of fire-resistant door core and preparation method thereof - Google Patents
A kind of fire-resistant door core and preparation method thereof Download PDFInfo
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- CN107082617A CN107082617A CN201710476402.2A CN201710476402A CN107082617A CN 107082617 A CN107082617 A CN 107082617A CN 201710476402 A CN201710476402 A CN 201710476402A CN 107082617 A CN107082617 A CN 107082617A
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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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/10—Lime cements or magnesium oxide cements
- C04B28/105—Magnesium oxide or magnesium carbonate cements
-
- 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
-
- 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
- C04B2111/40—Porous or lightweight materials
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
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Abstract
The invention discloses a kind of fire-resistant door core, include the component of following parts by weight：Include the component of following parts by weight：7~12 parts of light calcined magnesia, 20~35 parts of expanded perlite, 15~23 parts of bentonite, 13~21 parts of desulfurated plaster, 4~8 parts of chopped strand, 1~2 part of foaming agent, 11~16 parts of flyash, 4~8 parts of lignin, 0.5~1 part of expansible graphite, 0.2~0.4 part of Firebrake ZB, 2~7 parts of modifying agent, appropriate amount of water.The fire-resistant door core have excellent fire retarding performance, heat-proof quality it is good, by fire do not produce toxic gas, environmental protection and unit weight it is small the characteristics of.
Description
Technical field
The invention belongs to fire resistant doorsets technical field, and in particular to a kind of fire-resistant door core and preparation method thereof.
Background technology
With China's rapid development of economy, urbanization process is constantly accelerated, and city middle-high building is emerged in multitude.
With being on the increase for skyscraper, in recent years, the high building fire layer by layer that China occurs shows the situation growed in intensity.By
Big in fire of high-rise building fire-fighting and rescue fire extinguishing difficulty, high-rise fire often results in the consequences such as casualties is big, economic loss is serious,
Cause great social influence.Therefore, when fire occurs, how the intensity of a fire is obstructed, delays fire spread, be the people in the scene of a fire
To race against time be an important topic for escape and fire brigade's fire fighting and rescue, especially in densely populated residential quarter or large-scale
Public place, if can spreading in regular hour internal resistance fire insulation gesture, can not only reduce the number of casualties, can more reduce property damage
Lose, the harm of fire is reduced to greatest extent.
Fire resistant doorsets are as generally acknowledged passive fire protection device, the fire wall available for Building Fire Protection subregion within a certain period of time
The device of opening, staircase gateway, evacu-ation walk, pipeline well head etc..Prevention fire can be played when occurring fire climing
Prolong and prevent fire smoke from flowing, and sealed effect is played when positive supply air system works, flame can be isolated.It is prior
It is that when fire occurs, fire resistant doorsets are effective protective barriers of the passways for escaping such as stairs port.Therefore, the excellent fire prevention of fire resistance
Door plays key effect in building fire is rescued and is escaped, and is the life door assured the safety for life and property of the people.
In the quality of fire resistant doorsets fire resistance, the selection for being mainly reflected in fire-resistant door core material.Magnesite fireproof plate, expansion leech
Slabstone, foamed cement board, expanded pearlite rock beam etc. are all important fire-resistant door core sheet material.But these anti-fire door core boards actually should
There are some problems in, such as：The presence of magnesite fire-proof door panel is returned halogen and got damp, the problem of corroding door-plate；Expanded vermiculite plate and
There is poor toughness in expanded pearlite rock beam, frangible and unit weight；It is poor to there is hygroscopic, frangible and fire resistance in foamed cement board
The problems such as.
The content of the invention
The invention provides a kind of fire-resistant door core and preparation method thereof, the deficiency in above-mentioned background technology is solved, it is described anti-
Vent core have excellent fire retarding performance, heat-proof quality it is good, by fire do not produce toxic gas, environmental protection and unit weight it is small the characteristics of.
In order to solve the problem of prior art is present, adopt the following technical scheme that：
A kind of fire-resistant door core, includes the component of following parts by weight：It is 7~12 parts of light calcined magnesia, 20~35 parts of expanded perlite, swollen
It is 15~23 parts of profit soil, 13~21 parts of desulfurated plaster, 4~8 parts of chopped strand, 1~2 part of foaming agent, 11~16 parts of flyash, wooden
4~8 parts of element, 0.5~1 part of expansible graphite, 0.2~0.4 part of Firebrake ZB, 2~7 parts of modifying agent, appropriate amount of water.
It is preferred that, described fire-resistant door core includes the component of following parts by weight：8~10 parts of light calcined magnesia, expanded pearlite
26~33 parts of rock, 19~22 parts of bentonite, 15~18 parts of desulfurated plaster, 5~7 parts of chopped strand, 1.2~1.7 parts of foaming agent, powder
13~16 parts of coal ash, 4.8~6.3 parts of lignin, 0.7~0.8 part of expansible graphite, 0.25~0.35 part of Firebrake ZB, modifying agent 4
~6.5 parts, appropriate amount of water.
It is preferred that, described fire-resistant door core includes the component of following parts by weight：9 parts of light calcined magnesia, expanded perlite 28
Part, 20 parts of bentonite, 17 parts of desulfurated plaster, 6 parts of chopped strand, 1.4 parts of foaming agent, 15.2 parts of flyash, 5.4 parts of lignin,
0.75 part of expansible graphite, 0.33 part of Firebrake ZB, 5.1 parts of modifying agent, appropriate amount of water.
It is preferred that, the modifying agent is magnesium oxysulfide water resistant reinforcing agent, and the magnesium oxysulfide water resistant reinforcing agent includes following weight
The component of part：25~35 parts of silicon ash, 18~22 parts of waterproofing agent of organosilicon powder, 35~38 parts of sucrose, 20~35 parts of humic acid.
It is preferred that, the chopped strand is made up of carbon fiber, glass fibre and string.
It is preferred that, the foaming agent is that lauryl sodium sulfate is formed with emulsifier op-10 according to 3: 2 proportions.
A kind of method for preparing the fire-resistant door core, comprises the following steps：
（1）Light calcined magnesia, expanded perlite, bentonite, desulfurated plaster, chopped strand, foaming agent, powder are weighed by above-mentioned formula
Coal ash, lignin, expansible graphite, Firebrake ZB, modifying agent, water, it is standby；
（2）Foaming agent is diluted with water, extension rate is 18~22 times, by special-purpose air foaming mechanism it is standby go out foaming agent foam；
（3）Modifying agent, Firebrake ZB and lignin are placed in dispersion machine, adding water is completely dissolved it, add chopped strand, it is high
Speed is scattered 2~5 hours, chopped strand is dispersed substantially in the aqueous solution, obtains mixed solution；
（4）Mixed solution is heated to 40~60 DEG C, desulfurated plaster is put into, is uniformly mixed, then add light calcined magnesia,
Bentonite, flyash and expansible graphite, are stirred 38~53 minutes, are put into expanded perlite, are stirred, obtain mixed slurry；
（5）By step（2）Obtained foaming agent foam and step（4）Obtained mixed slurry is well mixed, and carries out foaming processing,
Obtain paste slurry；
（6）Paste slurry is cast in in the mould got ready first low-frequency high-amplitude vibration, and pressure head is press-formed again, is then put in maintenance
Conserved 7~10 days in room, the demoulding obtains the fire-resistant door core matrix；
（7）The fire-resistant door core matrix is subjected to moisturizing temperature control maintenance, under the conditions of 8~13 DEG C of temperature, relative humidity >=80%
Maintenance 48~72 hours, makes its intensity reach more than 95%, then carries out control water curing 120 hours, i.e., door panel is placed on wet
Natural air drying in the environment of degree≤40%, is made the anti-fire door core board of moisture content≤8%.
It is preferred that, the frequency of low-frequency high-amplitude vibration is per minute to be less than 10 times, amplitude is highly more than 0.1 meter.
Compared with prior art, it has the advantages that the present invention：
Fire-resistant door core of the present invention have excellent fire retarding performance, heat-proof quality it is good, by fire do not produce toxic gas, environmental protection and
The characteristics of unit weight is small, it is specific as follows：
（1）Fire-resistant door core of the present invention is precious with light calcined magnesia, expansion by optimizing the ratio and preparation technology of each raw material
Zhu Yan, bentonite, desulfurated plaster, chopped strand, foaming agent, flyash, lignin, expansible graphite, Firebrake ZB, modifying agent are
Raw material, the fire-resistant door core excellent fire retarding performance prepared, heat-proof quality are good；And the raw material harvest used does not produce any murder by poisoning
Gas, it is relatively more environmentally friendly；
（2）Modifying agent is added in fire-resistant door core of the present invention for magnesium oxysulfide water resistant reinforcing agent, the magnesium oxysulfide water resistant increases
Strong agent includes silicon ash, waterproofing agent of organosilicon powder, sucrose, humic acid, is remarkably improved resistance to compression, anti-folding, impervious, anti-corrosion, anti-impact
Hit and anti-wear performance
（3）Substantial amounts of reinforcing fiber is provided in the fire-resistant door core component provided due to the present invention, can effectively disperse practical application
The stress of middle anti-fire door core board, it is to avoid fire-resistant door core sheet material it is broken.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.These embodiments be merely to illustrate the present invention and without
In limitation the scope of the present invention.
Embodiment 1
The present embodiment is related to a kind of fire-resistant door core, includes the component of following parts by weight：7 parts of light calcined magnesia, expanded perlite 20
It is part, 15 parts of bentonite, 13 parts of desulfurated plaster, 4 parts of chopped strand, 1 part of foaming agent, 11 parts of flyash, 4 parts of lignin, inflatable
0.5 part of graphite, 0.2 part of Firebrake ZB, 2 parts of modifying agent, appropriate amount of water.
Wherein, the modifying agent is magnesium oxysulfide water resistant reinforcing agent, and the magnesium oxysulfide water resistant reinforcing agent includes following parts by weight
Component：25 parts of silicon ash, 18 parts of waterproofing agent of organosilicon powder, 35 parts of sucrose, 20 parts of humic acid.
Wherein, the chopped strand is made up of carbon fiber, glass fibre and string.
Wherein, the foaming agent is that lauryl sodium sulfate is formed with emulsifier op-10 according to 3: 2 proportions.
A kind of method for preparing the fire-resistant door core, comprises the following steps：
（1）Light calcined magnesia, expanded perlite, bentonite, desulfurated plaster, chopped strand, foaming agent, powder are weighed by above-mentioned formula
Coal ash, lignin, expansible graphite, Firebrake ZB, modifying agent, water, it is standby；
（2）Foaming agent is diluted with water, extension rate is 18 times, by special-purpose air foaming mechanism it is standby go out foaming agent foam；
（3）Modifying agent, Firebrake ZB and lignin are placed in dispersion machine, adding water is completely dissolved it, add chopped strand, it is high
Speed is scattered 2 hours, chopped strand is dispersed substantially in the aqueous solution, obtains mixed solution；
（4）Mixed solution is heated to 40 DEG C, desulfurated plaster is put into, is uniformly mixed, light calcined magnesia, swelling is then added
Soil, flyash and expansible graphite, are stirred 38 minutes, are put into expanded perlite, are stirred, obtain mixed slurry；
（5）By step（2）Obtained foaming agent foam and step（4）Obtained mixed slurry is well mixed, and carries out foaming processing,
Obtain paste slurry；
（6）Paste slurry is cast in in the mould got ready first low-frequency high-amplitude vibration, and pressure head is press-formed again, is then put in maintenance
Conserved 7 days in room, the demoulding obtains the fire-resistant door core matrix；
（7）The fire-resistant door core matrix is subjected to moisturizing temperature control maintenance, conserved under the conditions of 8 DEG C of temperature, relative humidity >=80%
48 hours, its intensity is reached more than 95%, then carry out control water curing 120 hours, i.e., door panel is placed on humidity≤40%
Environment in natural air drying, be made moisture content≤8% anti-fire door core board.
Wherein, the frequency of low-frequency high-amplitude vibration it is per minute be less than 10 times, amplitude is highly more than 0.1 meter.
Embodiment 2
The present embodiment is related to a kind of fire-resistant door core, includes the component of following parts by weight：12 parts of light calcined magnesia, expanded perlite 35
It is part, 23 parts of bentonite, 21 parts of desulfurated plaster, 8 parts of chopped strand, 2 parts of foaming agent, 16 parts of flyash, 8 parts of lignin, inflatable
1 part of graphite, 0.4 part of Firebrake ZB, 7 parts of modifying agent, appropriate amount of water.
Wherein, the modifying agent is magnesium oxysulfide water resistant reinforcing agent, and the magnesium oxysulfide water resistant reinforcing agent includes following parts by weight
Component：35 parts of silicon ash, 22 parts of waterproofing agent of organosilicon powder, 38 parts of sucrose, 35 parts of humic acid.
Wherein, the chopped strand is made up of carbon fiber, glass fibre and string.
Wherein, the foaming agent is that lauryl sodium sulfate is formed with emulsifier op-10 according to 3: 2 proportions.
A kind of method for preparing the fire-resistant door core, comprises the following steps：
（1）Light calcined magnesia, expanded perlite, bentonite, desulfurated plaster, chopped strand, foaming agent, powder are weighed by above-mentioned formula
Coal ash, lignin, expansible graphite, Firebrake ZB, modifying agent, water, it is standby；
（2）Foaming agent is diluted with water, extension rate is 22 times, by special-purpose air foaming mechanism it is standby go out foaming agent foam；
（3）Modifying agent, Firebrake ZB and lignin are placed in dispersion machine, adding water is completely dissolved it, add chopped strand, it is high
Speed is scattered 5 hours, chopped strand is dispersed substantially in the aqueous solution, obtains mixed solution；
（4）Mixed solution is heated to 60 DEG C, desulfurated plaster is put into, is uniformly mixed, light calcined magnesia, swelling is then added
Soil, flyash and expansible graphite, are stirred 53 minutes, are put into expanded perlite, are stirred, obtain mixed slurry；
（5）By step（2）Obtained foaming agent foam and step（4）Obtained mixed slurry is well mixed, and carries out foaming processing,
Obtain paste slurry；
（6）Paste slurry is cast in in the mould got ready first low-frequency high-amplitude vibration, and pressure head is press-formed again, is then put in maintenance
Conserved 10 days in room, the demoulding obtains the fire-resistant door core matrix；
（7）The fire-resistant door core matrix is subjected to moisturizing temperature control maintenance, conserved under the conditions of 13 DEG C of temperature, relative humidity >=80%
72 hours, its intensity is reached more than 95%, then carry out control water curing 120 hours, i.e., door panel is placed on humidity≤40%
Environment in natural air drying, be made moisture content≤8% anti-fire door core board.
Wherein, the frequency of low-frequency high-amplitude vibration it is per minute be less than 10 times, amplitude is highly more than 0.1 meter.
Embodiment 3
The present embodiment is related to a kind of fire-resistant door core, includes the component of following parts by weight：8 parts of light calcined magnesia, expanded perlite 26
Part, 19 parts of bentonite, 15 parts of desulfurated plaster, 5 parts of chopped strand, 1.2 parts of foaming agent, 13 parts of flyash, 4.8 parts of lignin, can
0.7 part of expanded graphite, 0.25 part of Firebrake ZB, 4 parts of modifying agent, appropriate amount of water.
Wherein, the chopped strand is made up of carbon fiber, glass fibre and string.
Wherein, the foaming agent is that lauryl sodium sulfate is formed with emulsifier op-10 according to 3: 2 proportions.
A kind of method for preparing the fire-resistant door core, comprises the following steps：
（1）Light calcined magnesia, expanded perlite, bentonite, desulfurated plaster, chopped strand, foaming agent, powder are weighed by above-mentioned formula
Coal ash, lignin, expansible graphite, Firebrake ZB, modifying agent, water, it is standby；
（2）Foaming agent is diluted with water, extension rate is 20 times, by special-purpose air foaming mechanism it is standby go out foaming agent foam；
（3）Modifying agent, Firebrake ZB and lignin are placed in dispersion machine, adding water is completely dissolved it, add chopped strand, it is high
Speed is scattered 3 hours, chopped strand is dispersed substantially in the aqueous solution, obtains mixed solution；
（4）Mixed solution is heated to 50 DEG C, desulfurated plaster is put into, is uniformly mixed, light calcined magnesia, swelling is then added
Soil, flyash and expansible graphite, are stirred 45 minutes, are put into expanded perlite, are stirred, obtain mixed slurry；
（5）By step（2）Obtained foaming agent foam and step（4）Obtained mixed slurry is well mixed, and carries out foaming processing,
Obtain paste slurry；
（6）Paste slurry is cast in in the mould got ready first low-frequency high-amplitude vibration, and pressure head is press-formed again, is then put in maintenance
Conserved 8 days in room, the demoulding obtains the fire-resistant door core matrix；
（7）The fire-resistant door core matrix is subjected to moisturizing temperature control maintenance, conserved under the conditions of 12 DEG C of temperature, relative humidity >=80%
60 hours, its intensity is reached more than 95%, then carry out control water curing 120 hours, i.e., door panel is placed on humidity≤40%
Environment in natural air drying, be made moisture content≤8% anti-fire door core board.
Wherein, the frequency of low-frequency high-amplitude vibration it is per minute be less than 10 times, amplitude is highly more than 0.1 meter.
Embodiment 4
The present embodiment is related to a kind of fire-resistant door core, includes the component of following parts by weight：10 parts of light calcined magnesia, expanded perlite 33
Part, 22 parts of bentonite, 18 parts of desulfurated plaster, 7 parts of chopped strand, 1.7 parts of foaming agent, 16 parts of flyash, 6.3 parts of lignin, can
0.8 part of expanded graphite, 0.35 part of Firebrake ZB, 6.5 parts of modifying agent, appropriate amount of water.
Wherein, the modifying agent is magnesium oxysulfide water resistant reinforcing agent, and the magnesium oxysulfide water resistant reinforcing agent includes following parts by weight
Component：30 parts of silicon ash, 20 parts of waterproofing agent of organosilicon powder, 36 parts of sucrose, 25 parts of humic acid.
Wherein, the chopped strand is made up of carbon fiber, glass fibre and string.
Wherein, the foaming agent is that lauryl sodium sulfate is formed with emulsifier op-10 according to 3: 2 proportions.
A kind of method for preparing the fire-resistant door core, comprises the following steps：
（1）Light calcined magnesia, expanded perlite, bentonite, desulfurated plaster, chopped strand, foaming agent, powder are weighed by above-mentioned formula
Coal ash, lignin, expansible graphite, Firebrake ZB, modifying agent, water, it is standby；
（2）Foaming agent is diluted with water, extension rate is 19 times, by special-purpose air foaming mechanism it is standby go out foaming agent foam；
（3）Modifying agent, Firebrake ZB and lignin are placed in dispersion machine, adding water is completely dissolved it, add chopped strand, it is high
Speed is scattered 4 hours, chopped strand is dispersed substantially in the aqueous solution, obtains mixed solution；
（4）Mixed solution is heated to 49 DEG C, desulfurated plaster is put into, is uniformly mixed, light calcined magnesia, swelling is then added
Soil, flyash and expansible graphite, are stirred 45 minutes, are put into expanded perlite, are stirred, obtain mixed slurry；
（5）By step（2）Obtained foaming agent foam and step（4）Obtained mixed slurry is well mixed, and carries out foaming processing,
Obtain paste slurry；
（6）Paste slurry is cast in in the mould got ready first low-frequency high-amplitude vibration, and pressure head is press-formed again, is then put in maintenance
Conserved 8 days in room, the demoulding obtains the fire-resistant door core matrix；
（7）The fire-resistant door core matrix is subjected to moisturizing temperature control maintenance, conserved under the conditions of 10 DEG C of temperature, relative humidity >=80%
52 hours, its intensity is reached more than 95%, then carry out control water curing 120 hours, i.e., door panel is placed on humidity≤40%
Environment in natural air drying, be made moisture content≤8% anti-fire door core board.
Wherein, the frequency of low-frequency high-amplitude vibration it is per minute be less than 10 times, amplitude is highly more than 0.1 meter.
Embodiment 5
The present embodiment is related to a kind of fire-resistant door core, includes the component of following parts by weight：9 parts of light calcined magnesia, expanded perlite 28
Part, 20 parts of bentonite, 17 parts of desulfurated plaster, 6 parts of chopped strand, 1.4 parts of foaming agent, 15.2 parts of flyash, 5.4 parts of lignin,
0.75 part of expansible graphite, 0.33 part of Firebrake ZB, 5.1 parts of modifying agent, appropriate amount of water.
Wherein, the modifying agent is magnesium oxysulfide water resistant reinforcing agent, and the magnesium oxysulfide water resistant reinforcing agent includes following parts by weight
Component：28 parts of silicon ash, 21 parts of waterproofing agent of organosilicon powder, 36 parts of sucrose, 25 parts of humic acid.
Wherein, the chopped strand is made up of carbon fiber, glass fibre and string.
Wherein, the foaming agent is that lauryl sodium sulfate is formed with emulsifier op-10 according to 3: 2 proportions.
A kind of method for preparing the fire-resistant door core, comprises the following steps：
（1）Light calcined magnesia, expanded perlite, bentonite, desulfurated plaster, chopped strand, foaming agent, powder are weighed by above-mentioned formula
Coal ash, lignin, expansible graphite, Firebrake ZB, modifying agent, water, it is standby；
（2）Foaming agent is diluted with water, extension rate is 21 times, by special-purpose air foaming mechanism it is standby go out foaming agent foam；
（3）Modifying agent, Firebrake ZB and lignin are placed in dispersion machine, adding water is completely dissolved it, add chopped strand, it is high
Speed is scattered 3.5 hours, chopped strand is dispersed substantially in the aqueous solution, obtains mixed solution；
（4）Mixed solution is heated to 55 DEG C, desulfurated plaster is put into, is uniformly mixed, light calcined magnesia, swelling is then added
Soil, flyash and expansible graphite, are stirred 50 minutes, are put into expanded perlite, are stirred, obtain mixed slurry；
（5）By step（2）Obtained foaming agent foam and step（4）Obtained mixed slurry is well mixed, and carries out foaming processing,
Obtain paste slurry；
（6）Paste slurry is cast in in the mould got ready first low-frequency high-amplitude vibration, and pressure head is press-formed again, is then put in maintenance
Conserved 9 days in room, the demoulding obtains the fire-resistant door core matrix；
（7）The fire-resistant door core matrix is subjected to moisturizing temperature control maintenance, conserved under the conditions of 10 DEG C of temperature, relative humidity >=80%
63 hours, its intensity is reached more than 95%, then carry out control water curing 120 hours, i.e., door panel is placed on humidity≤40%
Environment in natural air drying, be made moisture content≤8% anti-fire door core board.
Wherein, the frequency of low-frequency high-amplitude vibration it is per minute be less than 10 times, amplitude is highly more than 0.1 meter.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (8)
1. a kind of fire-resistant door core, it is characterised in that include the component of following parts by weight：7~12 parts of light calcined magnesia, expanded pearlite
20~35 parts of rock, 15~23 parts of bentonite, 13~21 parts of desulfurated plaster, 4~8 parts of chopped strand, 1~2 part of foaming agent, flyash
11~16 parts, 4~8 parts of lignin, 0.5~1 part of expansible graphite, 0.2~0.4 part of Firebrake ZB, 2~7 parts of modifying agent, water fit
Amount.
2. fire-resistant door core according to claim 1, it is characterised in that include the component of following parts by weight：Light calcined magnesia 8
~10 parts, 26~33 parts of expanded perlite, 19~22 parts of bentonite, 15~18 parts of desulfurated plaster, 5~7 parts of chopped strand, foaming
1.2~1.7 parts of agent, 13~16 parts of flyash, 4.8~6.3 parts of lignin, 0.7~0.8 part of expansible graphite, Firebrake ZB 0.25
~0.35 part, 4~6.5 parts of modifying agent, appropriate amount of water.
3. fire-resistant door core according to claim 1, it is characterised in that include the component of following parts by weight：Light calcined magnesia 9
Part, 28 parts of expanded perlite, 20 parts of bentonite, 17 parts of desulfurated plaster, 6 parts of chopped strand, 1.4 parts of foaming agent, flyash 15.2
Part, 5.4 parts of lignin, 0.75 part of expansible graphite, 0.33 part of Firebrake ZB, 5.1 parts of modifying agent, appropriate amount of water.
4. fire-resistant door core according to claim 1, it is characterised in that the modifying agent is magnesium oxysulfide water resistant reinforcing agent, institute
Stating magnesium oxysulfide water resistant reinforcing agent includes the component of following parts by weight：25~35 parts of silicon ash, waterproofing agent of organosilicon powder 18~22
Part, 35~38 parts of sucrose, 20~35 parts of humic acid.
5. fire-resistant door core according to claim 1, it is characterised in that the chopped strand by carbon fiber, glass fibre and
String is constituted.
6. fire-resistant door core according to claim 1, it is characterised in that the foaming agent is lauryl sodium sulfate and emulsification
Agent OP-10 is formed according to 3: 2 proportions.
7. a kind of method for preparing any one of claim 1~6 fire-resistant door core, it is characterised in that comprise the following steps：
（1）Light calcined magnesia, expanded perlite, bentonite, desulfurated plaster, chopped strand, foaming agent, powder are weighed by above-mentioned formula
Coal ash, lignin, expansible graphite, Firebrake ZB, modifying agent, water, it is standby；
（2）Foaming agent is diluted with water, extension rate is 18~22 times, by special-purpose air foaming mechanism it is standby go out foaming agent foam；
（3）Modifying agent, Firebrake ZB and lignin are placed in dispersion machine, adding water is completely dissolved it, add chopped strand, it is high
Speed is scattered 2~5 hours, chopped strand is dispersed substantially in the aqueous solution, obtains mixed solution；
（4）Mixed solution is heated to 40~60 DEG C, desulfurated plaster is put into, is uniformly mixed, then add light calcined magnesia,
Bentonite, flyash and expansible graphite, are stirred 38~53 minutes, are put into expanded perlite, are stirred, obtain mixed slurry；
（5）By step（2）Obtained foaming agent foam and step（4）Obtained mixed slurry is well mixed, and carries out foaming processing,
Obtain paste slurry；
（6）Paste slurry is cast in in the mould got ready first low-frequency high-amplitude vibration, and pressure head is press-formed again, is then put in maintenance
Conserved 7~10 days in room, the demoulding obtains the fire-resistant door core matrix；
（7）The fire-resistant door core matrix is subjected to moisturizing temperature control maintenance, under the conditions of 8~13 DEG C of temperature, relative humidity >=80%
Maintenance 48~72 hours, makes its intensity reach more than 95%, then carries out control water curing 120 hours, i.e., door panel is placed on wet
Natural air drying in the environment of degree≤40%, is made the anti-fire door core board of moisture content≤8%.
8. preparation method according to claim 7, it is characterised in that the frequency of the low-frequency high-amplitude vibration is per minute to be less than
10 times, amplitude highly be more than 0.1 meter.
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| CN201710476402.2A CN107082617A (en) | 2017-06-21 | 2017-06-21 | A kind of fire-resistant door core and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710476402.2A CN107082617A (en) | 2017-06-21 | 2017-06-21 | A kind of fire-resistant door core and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108503324A (en) * | 2018-05-09 | 2018-09-07 | 步阳集团有限公司 | Modified anti-fire door core board and production method |
| CN108530005A (en) * | 2018-05-04 | 2018-09-14 | 合肥市旺友门窗有限公司 | A kind of high-performance fire-resistant door core and preparation method thereof |
| CN113024222A (en) * | 2021-03-10 | 2021-06-25 | 浙江丰成门业有限公司 | Fireproof door core plate, preparation process thereof and fireproof door |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089126A (en) * | 2013-01-08 | 2013-05-08 | 邝钜炽 | Green fire door core and manufacturing method of same and fire door |
| CN104030724A (en) * | 2014-06-06 | 2014-09-10 | 山东省建筑科学研究院 | Sulfur-oxygen-magnesium gelling material fire door core board and manufacture method thereof |
-
2017
- 2017-06-21 CN CN201710476402.2A patent/CN107082617A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089126A (en) * | 2013-01-08 | 2013-05-08 | 邝钜炽 | Green fire door core and manufacturing method of same and fire door |
| CN104030724A (en) * | 2014-06-06 | 2014-09-10 | 山东省建筑科学研究院 | Sulfur-oxygen-magnesium gelling material fire door core board and manufacture method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108530005A (en) * | 2018-05-04 | 2018-09-14 | 合肥市旺友门窗有限公司 | A kind of high-performance fire-resistant door core and preparation method thereof |
| CN108503324A (en) * | 2018-05-09 | 2018-09-07 | 步阳集团有限公司 | Modified anti-fire door core board and production method |
| CN113024222A (en) * | 2021-03-10 | 2021-06-25 | 浙江丰成门业有限公司 | Fireproof door core plate, preparation process thereof and fireproof door |
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Application publication date: 20170822 |