CN107117931A - Modified phosphate cement-based fireproofing coating and its manufacture method - Google Patents
Modified phosphate cement-based fireproofing coating and its manufacture method Download PDFInfo
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- CN107117931A CN107117931A CN201710451423.9A CN201710451423A CN107117931A CN 107117931 A CN107117931 A CN 107117931A CN 201710451423 A CN201710451423 A CN 201710451423A CN 107117931 A CN107117931 A CN 107117931A
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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
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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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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
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- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Fireproofing Substances (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides a kind of modified phosphate cement-based fireproofing coating and its manufacture method.The phosphate cement fireproof coating that the present invention is provided is obtained by the raw material comprising following mass parts：10~20 parts of dihydric phosphate；5~15 parts of magnesium source；0.5~1.5 part of compound retarder；0.1~2 part of fiber；1~10 part of water.The phosphate cement fireproof coating that the present invention is provided has a good service behaviour, and rate of setting is suitable, and the presetting period is most long to can reach 62min, and fluidity is 150~210mm, easy film forming；There is higher cohesive force with base material after coating film forming hardening.
Description
Technical field
The present invention relates to fireproof coating technical field, more particularly to a kind of modified phosphate cement-based fireproofing coating and its system
Make method.
Background technology
Non-expansion type facing fire retardant coating is the coating that the existing decoration functions of a class have fire protection flame retarding function again, at normal temperatures
In common film, decoration is played to coating base material；When fire occurs, then with fire spreading is prevented, protection group is reached
Material, make people play the role of time enough to organize the rescue work.
Non-expansive fireproof paint mainly plays fireproofing function by three approach：One be coating itself flame retardancy or
Noninflammability；Two be to decompose to discharge incombustibility gas (such as vapor, ammonia, hydrogen chloride, two under flame or high temperature action
Carbonoxide etc.), water down oxygen and imflammable gas；Three be inorganic " the glaze film that incombustibility is formed under flame or hot conditions
Layer ", the glaze film layer structure is fine and close, can effectively starvation, and play certain heat-blocking action within a certain period of time.
In recent years, due to a large amount of uses of building and ornament materials, fire is in rising trend, and pole is caused to country and individual
Big economic loss.But, also there are many problems in current facing fire retardant coating, specific as itself cohesive force is weaker.
The content of the invention
It is an object of the invention to provide a kind of modified phosphate cement-based fireproofing coating and its manufacture method, the present invention is carried
The modified phosphate cement-based fireproofing coating of confession has suitable rate of setting and preferable cohesive force, and the presetting period is most long reachable
To 62min.
In order to realize foregoing invention purpose, the present invention provides following technical scheme：
The invention provides a kind of modified phosphate cement-based fireproofing coating, obtained by the raw material comprising following mass parts：
It is preferred that, described modified phosphate cement-based fireproofing coating is obtained by the raw material comprising following mass parts：
It is preferred that, the dihydric phosphate is one kind or several in potassium dihydrogen phosphate, sodium dihydrogen phosphate and aluminium dihydrogen phosphate
Kind；
The particle diameter of the dihydric phosphate is 45~3500nm.
It is preferred that, the magnesium source is burning magnesia, caustic-calcined magnesite, crosses calcined dolomite and one kind or several in light dolomite
Kind.
It is preferred that, the compound retarder includes potassium chloride and borax.
It is preferred that, the fiber is the one or more in glass fibre, carbon fiber and basalt fibre.
It is preferred that, a diameter of 10~20 μm of the fiber；
The length of the fiber is 1~10mm.
It is preferred that, the fiber is fiber powder, and the fiber powder is glass fiber powder, carbon fiber powder and basalt fibre powder
In one or more.
It is preferred that, the particle diameter of the fiber powder is 50~150 μm.
Present invention also offers a kind of preparation side of the modified phosphate cement-based fireproofing coating described in above-mentioned technical proposal
Method, is comprised the following steps：
Fiber is disperseed with water, the water for obtaining fiber mixes thing；
Dihydric phosphate, magnesium source and compound retarder are mixed, cement base-material is obtained；
The water of the fiber is mixed into thing and cement base-material is mixed, modified phosphate cement-based fireproofing coating is obtained.
The invention provides a kind of modified phosphate cement-based fireproofing coating, obtained by the raw material comprising following mass parts：
10~20 parts of dihydric phosphate；5~15 parts of magnesium source；0.5~1.5 part of compound retarder；0.1~2 part of fiber；1~10 part of water.This
The phosphate cement fireproof coating that invention is provided has low coagulation speed, and the presetting period is most long to can reach 62min, and final setting time is most
Grow to 66min.In addition, the fluidity of phosphate cement fireproof coating that the application is provided is greatly improved, be 150~
210mm, easy film forming；With high viscosity characteristic, adhesion strength is 0.76~1.48MPa, is applied higher than the cement for being not added with fiber
Material.
Present invention also offers a kind of preparation method of modified phosphate cement-based fireproofing coating, comprise the following steps：Will
Fiber is disperseed with water, and the water for obtaining fiber mixes thing；Dihydric phosphate, magnesium source and compound retarder are mixed, cement is obtained
Base-material；The water of the fiber is mixed into thing and cement base-material is mixed, phosphate cement fireproof coating is obtained.The preparation that the present invention is provided
Method is simple to operate, and obtained paint ingredient is uniform.
Brief description of the drawings
Fig. 1 is pull-out test schematic diagram of the present invention；
Fig. 2 is fire protecting performance test schematic diagram of the present invention；
Fig. 3 is light micrograph of the fireproof coating sample of the present invention before and after Fire Test；
1 is standard iron block in Fig. 1, and 2 be epoxide-resin glue, and 3 be the small test block of conventional cement mortar, and 4 be rough surface, and 5 are
Phosphate cement fireproof coating, 6 be the big test block of conventional cement mortar；
5 be phosphate cement fireproof coating in Fig. 2, and 7 be plank, and 8 be small brass cup, and 9 be support, and 10 be absolute ethyl alcohol,
11 be flame；
(a) is photo of the fireproof coating sample of numbering 16 before Fire Test in embodiment 1 in Fig. 3, and (b) is embodiment 1
Photo of the middle fireproof coating sample of numbering 16 after Fire Test, (c) is the fireproof coating sample of numbering 27 in embodiment 4 in fire prevention
Photo before experiment, (d) is photo of the fireproof coating sample of numbering 27 after Fire Test in embodiment 4.
Embodiment
The invention provides a kind of modified phosphate cement-based fireproofing coating, obtained by the raw material comprising following mass parts：
The modified phosphate cement-based fireproofing coating that the present invention is provided is obtained by the raw material comprising 10~20 parts of dihydric phosphates
Arrive, preferably 12~18 parts, more preferably 14~16 parts.The present invention is to the source of the dihydric phosphate without not any special
It is required that, it is specific such as commercially available potassium dihydrogen phosphate, phosphorus using the dihydric phosphate in source well known to those skilled in the art
Acid dihydride sodium, aluminium dihydrogen phosphate.In the present invention, P in the dihydric phosphate2O5Mass content be preferably 50~70%, more
Preferably 55~65%, most preferably 60%；K in the dihydric phosphate2O mass content is preferably 15~20%, more excellent
Elect 16~19%, most preferably 18~18.7% as.In the present invention, the particle diameter of the dihydric phosphate be preferably 45~
3500nm, more preferably 100~3000nm, most preferably 1000~2000nm.
On the basis of 10~20 parts of dihydric phosphates, the modified phosphate cement-based fireproofing coating that provides of the present invention by comprising
The raw material in 5~15 parts of magnesium sources is obtained, preferably 8~14 parts, more preferably 10 parts.In the present invention, the magnesium source was preferably
Burn magnesia, caustic-calcined magnesite, the one or more crossed in calcined dolomite and light dolomite.In the present invention, MgO in the magnesia
Mass content preferably greater than be equal to 90%, more preferably greater than equal to 98%.In the present invention, the caustic-calcined magnesite with it is light
Calcined dolomite be after material is calcined between 750~1100 DEG C of temperature grinding into powder；The burning magnesia and burning are white
Marble refer to temperature for grinding after more than 1100 DEG C calcinings into powder, be preferably to be sintered to obtain by more than 1500 DEG C of temperature
Magnesia.
On the basis of 10~20 parts of dihydric phosphates, the modified phosphate cement-based fireproofing coating that provides of the present invention by comprising
The raw material of 0.5~1.5 part of compound retarder is obtained, preferably 0.7~1.2 part, more preferably 1 part.In the present invention, it is described multiple
Close retarder and preferably comprise potassium chloride and borax.The present invention to the source of the potassium chloride and borax without it is not any it is special will
Ask, it is specific such as commercially available potassium chloride and borax using the potassium chloride and borax in source well known to those skilled in the art.
In the present invention, the mass content of potassium chloride is preferably 5~20% in the compound retarder, and more preferably 7~12%, it is optimal
Elect 10% as；The mass content of borax is preferably 80~95%, more preferably 88~93%, most preferably 90%.In the present invention
In, the particle diameter of the compound retarder is preferably 35~3750nm, more preferably 100~3000nm, most preferably 1000~
2000nm。
On the basis of 10~20 parts of dihydric phosphates, the modified phosphate cement-based fireproofing coating that provides of the present invention by comprising
The raw material of 0.1~2 part of fiber is obtained, preferably 0.5~1.5 part, more preferably 1 part.In the present invention, the fiber is preferably
One kind in glass fibre, carbon fiber and basalt fibre, two or three.In the present invention, the fiber may be used also preferably
Think fiber powder, the fiber powder be preferably glass fiber powder, carbon fiber powder and one kind in basalt fibre powder, two kinds or three
Kind.Source of the invention to the fiber and fiber powder is without any particular/special requirement, using well known to those skilled in the art
The fiber and fiber powder in source, it is specific such as commercially available fiber and fiber powder.
In the present invention, the diameter of the fiber is preferably 10~20 μm, more preferably 12~18 μm, most preferably 14~
16μm；The length of the fiber is preferably 1~10mm, more preferably 2~8mm, most preferably 4~6mm.In the present invention, institute
The particle diameter for stating fiber powder is preferably 50~150 μm, more preferably 80~130 μm, most preferably 100~110 μm.The present invention is to institute
Stating the size of carbon fiber and basalt fibre does not have any particular/special requirement, using commercially available carbon well-known to those skilled in the art
The size of fiber and basalt fibre.
On the basis of 10~20 parts of dihydric phosphates, the modified phosphate cement-based fireproofing coating that provides of the present invention by comprising
The raw material of 1~10 part of water is obtained, preferably 3~8 parts, more preferably 4~6 parts.
The present invention does not have any particular/special requirement to the preparation method of the modified phosphate cement-based fireproofing coating, will be each
Raw material components are mixed directly.In the present invention, the preparation method of the phosphate cement fireproof coating is preferably comprised
Following steps：
Fiber is disperseed with water, the water for obtaining fiber mixes thing；
Dihydric phosphate, magnesium source and compound retarder are mixed, cement base-material is obtained；
The water of the fiber is mixed into thing and cement base-material is mixed, modified phosphate cement-based fireproofing coating is obtained.
The present invention is disperseed fiber with water, and the water for obtaining fiber mixes thing.In the present invention, the fiber is water-dispersible
Mode be preferably ultrasonic disperse；The supersonic frequency of the ultrasonic disperse is preferably 35000~45000Hz, and more preferably 38000
~42000Hz, most preferably 40000Hz；The ultrasonic power of the ultrasonic disperse is preferably 100~150W, more preferably 110~
140W, most preferably 120~130W.In the present invention, the time of the ultrasonic disperse is preferably 1~10min, and more preferably 2
~8min, most preferably 3~5min.The present invention individually disperses fiber water, enables to fiber and water to mix evenly,
Avoid adding water the reuniting effect for stirring and producing fiber after individually mixing fiber and other solid powders.
The present invention mixes dihydric phosphate, magnesium source and compound retarder, obtains cement slurry base-material.In the present invention,
The mixing of the dihydric phosphate, magnesium source and compound retarder is preferably stirring mixing；The stir speed (S.S.) of the mixing is preferably
135~145r/min, more preferably 138~142r/min, most preferably 140r/min.In the present invention, the mixing when
Between be preferably 1~3min, more preferably 2min.The present invention individually mixes dihydric phosphate, magnesium source and compound retarder, can
So that powder is sufficiently mixed uniformly, so that the product generated after the reaction that adds water is evenly distributed, obtained coating property is uniform and stable.
The water for obtaining the fiber is mixed after thing and cement slurry base-material, and the water of the fiber is mixed thing and cement mortar by the present invention
Body base-material is mixed, and obtains modified phosphate cement-based fireproofing coating.In the present invention, the water of the fiber mixes thing and cement slurry
The mixing of base-material it is preferred sequentially include mixed on low speed and mixed at high speed.In the present invention, the stir speed (S.S.) of the mixed on low speed
Preferably 135~145r/min, more preferably 138~142r/min, most preferably 140r/min；The time of the mixed on low speed
Preferably 25~35s, more preferably 28~32s, most preferably 30s.In the present invention, the stir speed (S.S.) of the mixed at high speed is excellent
Elect 275~295r/min, most preferably more preferably 280~290r/min, 285r/min as；The time of the mixed at high speed is excellent
Elect 25~35s, most preferably more preferably 28~32s, 30s as.The water of the fiber is mixed thing and cement slurry base by the present invention
Material is first mixed slowly so that solid and liquid are gradually mixed, and prevents from causing solid particle and liquid splash because stir speed (S.S.) is too fast,
Quick stirring to be sufficiently mixed between liquid and solid particle uniformly.
Fire prevention is used as present invention also offers the modified phosphate cement-based fireproofing coating described in a kind of above-mentioned technical proposal
The application of coating, the thickness of the fire resistant coating is 1~10mm.It is of the invention directly to coat the phosphate cement fireproof coating
It is that can obtain fire resistant coating in substrate surface.In the present invention, the thickness of the fire resistant coating be 1~10mm, preferably 1.5~
3.5mm, more preferably 2~3mm.The present invention does not have any particular/special requirement to the coating method of the coating, using this area
Coating method known to technical staff is implemented.
In the present invention, the base material can be specifically flammable building and ornament materials, such as timber, fiber board paper board
And its product etc.；Can also be building structure or service portion, such as the surface fireproof of beam column plate major structure of construction and
The surface fireproof of building inside and outside wall；The fire prevention position of structures can also be built for bridge tunnel etc..
The modified phosphate cement-based fireproofing coating and its manufacture method provided with reference to embodiment the present invention is carried out
Detailed description, but they can not be interpreted as limiting the scope of the present invention.
Comparative example 1
According to the ratio of potassium dihydrogen phosphate in table 1, burning magnesia, compound retarder and water, each raw material is well mixed, made
The net paste paint of standby phosphate cement, its result is as shown in table 1.The test temperature of this comparative example is 19.6~21.3 DEG C, relatively wet
Spend for 38~39%.
The charge ratio and results of property of the net paste paint of phosphate cement in the comparative example 1 of table 1
Comparative example 2
According to the ratio of sodium dihydrogen phosphate in table 2, burning magnesia, compound retarder and water, each raw material is well mixed, made
The net paste paint of standby phosphate cement, its result is as shown in table 2.The test temperature of this comparative example is 19.6~21.3 DEG C, relatively wet
Spend for 38~39%.
The charge ratio and results of property of the net paste paint of phosphate cement in the comparative example 2 of table 2
Comparative example 3
According to the ratio of aluminium dihydrogen phosphate in table 3, burning magnesia, compound retarder and water, each raw material is well mixed, made
The net paste paint of standby phosphate cement, its result is as shown in table 3.The test temperature of this comparative example is 19.6~21.3 DEG C, relatively wet
Spend for 38~39%.
The charge ratio and results of property of the net paste paint of phosphate cement in the comparative example 3 of table 3
Embodiment 1
According to the ratio of 3mm glass fibres in table 4, potassium dihydrogen phosphate, burning magnesia, compound retarder and water, phosphorus is prepared
Acid salt cement fireproof coating.
Fiber is subjected to ultrasonic disperse with water, supersonic frequency is 40000Hz, ultrasonic power is 120W, ultrasonic disperse when
Between be 5min, obtain fiber water mix thing.
By potassium dihydrogen phosphate, magnesium source and compound retarder stir mix, stir speed (S.S.) is 140r/min, stirring mixing when
Between be 1min, obtain cement slurry base-material.
The water of fiber is mixed into thing and cement slurry base-material sequentially carries out mixed on low speed and mixed at high speed, phosphate cement is obtained
Fireproof coating.The stir speed (S.S.) of the mixed on low speed is 140r/min；The time of the mixed on low speed is 30s.The high speed is mixed
The stir speed (S.S.) of conjunction is preferably 285r/min；The time of the mixed at high speed is 30s.
The present embodiment has carried out performance detection to obtained phosphate cement fireproof coating, and its result is as shown in table 4.This reality
The test temperature for applying example is 19~21 DEG C, and relative humidity is 38~39%.
The charge ratio and results of property of the phosphate cement fireproof coating of 4 embodiment of table 1
Embodiment 2
According to the ratio of 6mm glass fibres in table 5, sodium dihydrogen phosphate, burning magnesia, compound retarder and water, phosphorus is prepared
Acid salt cement fireproof coating.
Fiber is subjected to ultrasonic disperse with water, supersonic frequency is 40000Hz, ultrasonic power is 120W, ultrasonic disperse when
Between be 5min, obtain fiber water mix thing.
By sodium dihydrogen phosphate, magnesium source and compound retarder stir mix, stir speed (S.S.) is 140r/min, stirring mixing when
Between be 1min, obtain cement slurry base-material.
The water of fiber is mixed into thing and cement slurry base-material sequentially carries out mixed on low speed and mixed at high speed, phosphate cement is obtained
Fireproof coating.The stir speed (S.S.) of the mixed on low speed is 140r/min；The time of the mixed on low speed is 30s.The high speed is mixed
The stir speed (S.S.) of conjunction is preferably 285r/min；The time of the mixed at high speed is 30s.
The present embodiment has carried out performance detection to obtained phosphate cement fireproof coating, and its result is as shown in table 5.This reality
The test temperature for applying example is 19.6~21.3 DEG C, and relative humidity is 38~39%.
The charge ratio and results of property of the phosphate cement fireproof coating of 5 embodiment of table 2
Embodiment 3
According to the ratio of 150 μm of glass fiber powders in table 6, aluminium dihydrogen phosphate, burning magnesia, compound retarder and water, system
Standby phosphate cement fireproof coating.
Fiber is subjected to ultrasonic disperse with water, supersonic frequency is 40000Hz, ultrasonic power is 120W, ultrasonic disperse when
Between be 5min, obtain fiber water mix thing.
By aluminium dihydrogen phosphate, magnesium source and compound retarder stir mix, stir speed (S.S.) is 140r/min, stirring mixing when
Between be 1min, obtain cement slurry base-material.
The water of fiber is mixed into thing and cement slurry base-material sequentially carries out mixed on low speed and mixed at high speed, phosphate cement is obtained
Fireproof coating.The stir speed (S.S.) of the mixed on low speed is 140r/min；The time of the mixed on low speed is 30s.The high speed is mixed
The stir speed (S.S.) of conjunction is preferably 285r/min；The time of the mixed at high speed is 30s.
The present embodiment has carried out performance detection to obtained phosphate cement fireproof coating, and its result is as shown in table 6.This reality
The test temperature for applying example is 19.6~21.3 DEG C, and relative humidity is 38~39%.
The charge ratio and results of property of the phosphate cement fireproof coating of 6 embodiment of table 3
Embodiment 4
According to the ratio of 3mm carbon fibers in table 7, potassium dihydrogen phosphate, caustic-calcined magnesite, compound retarder and water, phosphoric acid is prepared
Salt cement fireproof coating.
Fiber is subjected to ultrasonic disperse with water, supersonic frequency is 40000Hz, ultrasonic power is 120W, ultrasonic disperse when
Between be 5min, obtain fiber water mix thing.
By potassium dihydrogen phosphate, magnesium source and compound retarder stir mix, stir speed (S.S.) is 140r/min, stirring mixing when
Between be 1min, obtain cement slurry base-material.
The water of fiber is mixed into thing and cement slurry base-material sequentially carries out mixed on low speed and mixed at high speed, phosphate cement is obtained
Fireproof coating.The stir speed (S.S.) of the mixed on low speed is 140r/min；The time of the mixed on low speed is 30s.The high speed is mixed
The stir speed (S.S.) of conjunction is preferably 285r/min；The time of the mixed at high speed is 30s.
The present embodiment has carried out performance detection to obtained phosphate cement fireproof coating, and its result is as shown in table 6.This reality
The test temperature for applying example is 19.6~21.3 DEG C, and relative humidity is 38~39%.
The charge ratio and results of property of the phosphate cement fireproof coating of 7 embodiment of table 4
Embodiment 5
According to the ratio of 6mm carbon fibers in table 8, sodium dihydrogen phosphate, light dolomite, compound retarder and water, phosphorus is prepared
Acid salt cement fireproof coating.
Fiber is subjected to ultrasonic disperse with water, supersonic frequency is 40000Hz, ultrasonic power is 120W, ultrasonic disperse when
Between be 5min, obtain fiber water mix thing.
By sodium dihydrogen phosphate, magnesium source and compound retarder stir mix, stir speed (S.S.) is 140r/min, stirring mixing when
Between be 1min, obtain cement slurry base-material.
The water of fiber is mixed into thing and cement slurry base-material sequentially carries out mixed on low speed and mixed at high speed, phosphate cement is obtained
Fireproof coating.The stir speed (S.S.) of the mixed on low speed is 140r/min；The time of the mixed on low speed is 30s.The high speed is mixed
The stir speed (S.S.) of conjunction is preferably 285r/min；The time of the mixed at high speed is 30s.
The present embodiment has carried out performance detection to obtained phosphate cement fireproof coating, and its result is as shown in table 7.This reality
The test temperature for applying example is 19.6~21.3 DEG C, and relative humidity is 38~39%.
The charge ratio and results of property of the phosphate cement fireproof coating of 8 embodiment of table 5
Embodiment 6
According to 150 μm of carbon fiber powders, aluminium dihydrogen phosphates, ratios for crossing calcined dolomite, compound retarder and water, system in table 9
Standby phosphate cement fireproof coating.
Fiber is subjected to ultrasonic disperse with water, supersonic frequency is 40000Hz, ultrasonic power is 120W, ultrasonic disperse when
Between be 5min, obtain fiber water mix thing.
By aluminium dihydrogen phosphate, magnesium source and compound retarder stir mix, stir speed (S.S.) is 140r/min, stirring mixing when
Between be 1min, obtain cement slurry base-material.
The water of fiber is mixed into thing and cement slurry base-material sequentially carries out mixed on low speed and mixed at high speed, phosphate cement is obtained
Fireproof coating.The stir speed (S.S.) of the mixed on low speed is 140r/min；The time of the mixed on low speed is 30s.The high speed is mixed
The stir speed (S.S.) of conjunction is preferably 285r/min；The time of the mixed at high speed is 30s.
The present embodiment has carried out performance detection to obtained phosphate cement fireproof coating, and its result is as shown in table 8.This reality
The test temperature for applying example is 19.6~21.3 DEG C, and relative humidity is 38~39%.
The charge ratio and results of property of the phosphate cement fireproof coating of 9 embodiment of table 6
Embodiment 7
According to the ratio of 3mm basalt fibres in table 10, potassium dihydrogen phosphate, burning magnesia, compound retarder and water, prepare
Phosphate cement fireproof coating.
Fiber is subjected to ultrasonic disperse with water, supersonic frequency is 40000Hz, ultrasonic power is 120W, ultrasonic disperse when
Between be 5min, obtain fiber water mix thing.
By potassium dihydrogen phosphate, magnesium source and compound retarder stir mix, stir speed (S.S.) is 140r/min, stirring mixing when
Between be 1min, obtain cement slurry base-material.
The water of fiber is mixed into thing and cement slurry base-material sequentially carries out mixed on low speed and mixed at high speed, phosphate cement is obtained
Fireproof coating.The stir speed (S.S.) of the mixed on low speed is 140r/min；The time of the mixed on low speed is 30s.The high speed is mixed
The stir speed (S.S.) of conjunction is preferably 285r/min；The time of the mixed at high speed is 30s.
The present embodiment has carried out performance detection to obtained phosphate cement fireproof coating, and its result is as shown in table 9.This reality
The test temperature for applying example is 19.6~21.3 DEG C, and relative humidity is 38~39%.
The charge ratio and results of property of the phosphate cement fireproof coating of 10 embodiment of table 7
Embodiment 8
According to the ratio of 6mm basalt fibres in table 11, sodium dihydrogen phosphate, burning magnesia, compound retarder and water, prepare
Phosphate cement fireproof coating.
Fiber is subjected to ultrasonic disperse with water, supersonic frequency is 40000Hz, ultrasonic power is 120W, ultrasonic disperse when
Between be 5min, obtain fiber water mix thing.
By sodium dihydrogen phosphate, magnesium source and compound retarder stir mix, stir speed (S.S.) is 140r/min, stirring mixing when
Between be 1min, obtain cement slurry base-material.
The water of fiber is mixed into thing and cement slurry base-material sequentially carries out mixed on low speed and mixed at high speed, phosphate cement is obtained
Fireproof coating.The stir speed (S.S.) of the mixed on low speed is 140r/min；The time of the mixed on low speed is 30s.The high speed is mixed
The stir speed (S.S.) of conjunction is preferably 285r/min；The time of the mixed at high speed is 30s.
The present embodiment has carried out performance detection to obtained phosphate cement fireproof coating, and its result is as shown in table 10.This
The test temperature of embodiment is 19.6~21.3 DEG C, and relative humidity is 38~39%.
The charge ratio and results of property of the phosphate cement fireproof coating of 11 embodiment of table 8
Embodiment 9
According to the ratio of 150 μm of basalt fibre powder in table 12, aluminium dihydrogen phosphate, burning magnesia, compound retarder and water,
Prepare phosphate cement fireproof coating.
Fiber is subjected to ultrasonic disperse with water, supersonic frequency is 40000Hz, ultrasonic power is 120W, ultrasonic disperse when
Between be 5min, obtain fiber water mix thing.
By aluminium dihydrogen phosphate, magnesium source and compound retarder stir mix, stir speed (S.S.) is 140r/min, stirring mixing when
Between be 1min, obtain cement slurry base-material.
The water of fiber is mixed into thing and cement slurry base-material sequentially carries out mixed on low speed and mixed at high speed, phosphate cement is obtained
Fireproof coating.The stir speed (S.S.) of the mixed on low speed is 140r/min；The time of the mixed on low speed is 30s.The high speed is mixed
The stir speed (S.S.) of conjunction is preferably 285r/min；The time of the mixed at high speed is 30s.
The present embodiment has carried out performance detection to obtained phosphate cement fireproof coating, and its result is as shown in table 9.This reality
The test temperature for applying example is 19.6~21.3 DEG C, and relative humidity is 38~39%.
The charge ratio and results of property of the phosphate cement fireproof coating of 12 embodiment of table 9
In comparative example 1~3 of the present invention and embodiment 1~9, the method for testing of the fluidity is：Reference standard《Cement
Mortar fluidity assay method》(GBT 2419-2005), is tested on a glass using iron round platform die trial, will circle before test
Platform die trial and glass plate are soaked, in order to avoid absorb the moisture in sample and influence fluidity test result.
Test process is：The slurry being stirred is quickly poured into round platform die trial, vertically lifts round platform examination after filling immediately
Mould, the diameter that slurry forms cake in glass pane surface is tested with ruler, is tested three times and is averaged, is used as the flowing starched only
Degree.
The phosphate cement fireproof coating provided from comparative example 1~3 and the test result of embodiment 1~9, the application
With slower rate of setting, the presetting period is most long to can reach 62min, and final setting time is most long to can reach 66min.In addition, this Shen
The fluidity for the phosphate cement fireproof coating that please be provided is that 150~210mm, easy film forming, and film strength are high.
The adhesion strength of phosphate cement fireproof coating of the present invention also to obtaining is tested, and tests reference standard
《Architectural engineering cohesive strength of decorative tile test stone》(JGJ 110-2008), test specimen manufacturing process is：First smeared before experiment with wet
Cloth is soaked mortar plate surface, and the sample being stirred is coated in into mortar plate surface afterwards, and two pieces of Mortar Plates are slightly compressed to
Together so that mortar thickness is 2~15mm, the slurry of surrounding spilling is scraped off, places and conserve 3 days indoors, then tried with drawing
Test machine (XH-6000N, Beijing world spark technology Development Co., Ltd) to be tested, take the arithmetic of every group of 3 test specimen test values
Average value is used as adhesion strength value.Fig. 1 tests the schematic diagram of adhesion strength for the present invention using pull-out test machine.Adhesion strength is surveyed
Test result is as shown in table 13.
The adhesion strength of the phosphate cement fireproof coating of 13 embodiment of table 1~9
As shown in Table 13, the phosphate cement fireproof coating that the application is provided has high viscosity characteristic, and adhesion strength is
0.76~1.48MPa, higher than the cement paint for being not added with fiber.
The fire protecting performance of phosphate cement fireproof coating of the present invention also to obtaining is tested, and tests reference standard
《Finishing fire retardant paint》(GB12441-2005), test specimen manufacturing process is：With wet rag by gross thickness is 5mm five before experiment
Layer birch wood (300mm × 100mm) is soaked, and the slurry being stirred is coated into board surface, coating layer thickness is 2.5mm,
And plank is lifted into 120mm, its free-falling is allowed to be vibrated, and four sides of plank is preferably subjected to edge sealing processing, in room
Interior maintenance is put into drying baker after 1 day and taken out after the drying 40 hours of 50 DEG C of constant temperature, and its quality is claimed after test specimen is cooled to room temperature；Root
According to experimental condition, tested during actual fire protecting performance test with reference to cell combustion method, in closed indoor progress, measure 5mL
Alcohol, pour into small brass cup (height 30mm, radius 23mm), plank be placed on small brass cup above, makes plank and small
The vertical range on the upper edge of brass cup is 25mm, lights alcohol and treats that test specimen is cooled to room temperature untill it extinguishes naturally, after experiment
After test its quality and char volume.The fire protecting performance test is specific as shown in Fig. 2 Fig. 2 carries out fire line for the present invention
The schematic diagram (unit of each size is mm in Fig. 2) that can be tested, Fig. 3 is fireproof coating sample of the present invention before and after Fire Test
Light micrograph.
After actual test, the char volume of phosphate cement fireproof coating is 0, therefore measurement phosphate cement fire prevention
The crack length of coating surface, and take unit mass crack length (quality i.e. before crack length divided by coating flammability test) to make
For fire protecting performance odds compared with foundation, therefore the fire protecting performance superior and inferior evaluating of phosphate cement fireproof coating is according to being in the present invention
Mass loss (quality of plank and coating subtracts the quality of plank and coating after fire protecting performance test before fire protecting performance test) and
Unit mass crack length, every group of test specimen is 5, takes arithmetic mean of instantaneous value as test value, and specific test data is shown in Table 14 Hes
Shown in table 15.
The mass loss of the phosphate cement fireproof coating of 14 embodiment of table 1~9
The unit mass crack length of the phosphate cement fireproof coating of 15 embodiment of table 1~9
From table 14 and table 15, the mass loss for the phosphate cement fireproof coating that the application is provided and unit mass are split
Line length has obvious reduction, and fire protecting performance makes moderate progress.
As seen from the above embodiment, the invention provides a kind of phosphate cement fireproof coating, by including following mass parts
Raw material obtain：10~20 parts of dihydric phosphate；5~15 parts of magnesium source；0.5~1.5 part of compound retarder；0.1~2 part of fiber；
1~10 part of water.The phosphate cement fireproof coating that the present invention is provided has low coagulation speed, and the presetting period is most long to be can reach
62min, final setting time is most long to can reach 66min.In addition, the fluidity for the phosphate cement fireproof coating that the application is provided is obtained
Be greatly improved, be 150~210mm, easy film forming；With high viscosity characteristic, adhesion strength is 0.76~1.48MPa,
Higher than the cement paint for being not added with fiber.
Present invention also offers the preparation method that a kind of phosphate cement fireproof coating is made, comprise the following steps：By fiber
Disperseed with water, the water for obtaining fiber mixes thing；Dihydric phosphate, magnesium source and compound retarder are mixed, cement slurry is obtained
Base-material；The water of the fiber is mixed into thing and cement slurry base-material is mixed, phosphate cement fireproof coating is obtained.What the present invention was provided
Preparation method is simple to operate, and obtained paint ingredient is uniform.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of modified phosphate cement-based fireproofing coating, is obtained by the raw material comprising following mass parts：
2. modified phosphate cement-based fireproofing coating according to claim 1, it is characterised in that described phosphate cement
Fireproof coating, is obtained by the raw material comprising following mass parts：
3. modified phosphate cement-based fireproofing coating according to claim 1 or 2, it is characterised in that the biphosphate
Salt is the one or more in potassium dihydrogen phosphate, sodium dihydrogen phosphate and aluminium dihydrogen phosphate；
The particle diameter of the dihydric phosphate is 45~3500nm.
4. modified phosphate cement-based fireproofing coating according to claim 1 or 2, it is characterised in that the magnesium source was
Burn magnesia, caustic-calcined magnesite, the one or more crossed in calcined dolomite and light dolomite.
5. modified phosphate cement-based fireproofing coating according to claim 1 or 2, it is characterised in that the compound slow setting
Agent includes potassium chloride and borax.
6. modified phosphate cement-based fireproofing coating according to claim 1 or 2, it is characterised in that the fiber is glass
One or more in glass fiber, carbon fiber and basalt fibre.
7. modified phosphate cement-based fireproofing coating according to claim 6, it is characterised in that the fiber it is a diameter of
10~20 μm；
The length of the fiber is 1~10mm.
8. modified phosphate cement-based fireproofing coating according to claim 1 or 2, it is characterised in that the fiber is fibre
Powder is tieed up, the fiber powder is the one or more in glass fiber powder, carbon fiber powder and basalt fibre powder.
9. modified phosphate cement-based fireproofing coating according to claim 8, it is characterised in that the particle diameter of the fiber powder
For 50~150 μm.
10. the preparation method of the modified phosphate cement-based fireproofing coating described in claim 1~9 any one, comprising as follows
Step：
Fiber is disperseed with water, the water for obtaining fiber mixes thing；
Dihydric phosphate, magnesium source and compound retarder are mixed, cement base-material is obtained；
The water of the fiber is mixed into thing and cement base-material is mixed, modified phosphate cement-based fireproofing coating is obtained.
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| CN110423084A (en) * | 2019-08-30 | 2019-11-08 | 江西鑫泉固废处理有限公司 | A kind of environmental protection process for producing bricks |
| CN110627455A (en) * | 2019-11-05 | 2019-12-31 | 厦门高辰新材料有限公司 | High-molecular beneficial daub and preparation method thereof |
| CN110723955A (en) * | 2019-12-03 | 2020-01-24 | 山东鲁阳节能材料股份有限公司 | Fireproof material and preparation method thereof |
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| CN110423084A (en) * | 2019-08-30 | 2019-11-08 | 江西鑫泉固废处理有限公司 | A kind of environmental protection process for producing bricks |
| CN110627455A (en) * | 2019-11-05 | 2019-12-31 | 厦门高辰新材料有限公司 | High-molecular beneficial daub and preparation method thereof |
| CN110723955A (en) * | 2019-12-03 | 2020-01-24 | 山东鲁阳节能材料股份有限公司 | Fireproof material and preparation method thereof |
| CN110723955B (en) * | 2019-12-03 | 2022-02-15 | 山东鲁阳节能材料股份有限公司 | Fireproof material and preparation method thereof |
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Application publication date: 20170901 |