CN107188522A - A kind of phosphate cement fireproof coating and preparation method thereof - Google Patents
A kind of phosphate cement fireproof coating and preparation method thereof Download PDFInfo
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- CN107188522A CN107188522A CN201710451324.0A CN201710451324A CN107188522A CN 107188522 A CN107188522 A CN 107188522A CN 201710451324 A CN201710451324 A CN 201710451324A CN 107188522 A CN107188522 A CN 107188522A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/34—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders
- C04B28/344—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders the phosphate binder being present in the starting composition solely as one or more phosphates
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Building Environments (AREA)
Abstract
The invention provides a kind of phosphate cement fireproof coating and preparation method thereof.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；Expand 0~2 part of spike；1~10 part of water.The phosphate cement fireproof coating that the present invention is provided has low coagulation speed, presetting period up to 67min, final setting time up to 74min.In addition, the fluidity for the phosphate cement fireproof coating that the present invention is provided is improved largely, it is 180~215mm；The fireproof coating has high bond strength, and its adhesion strength is 1.2~2.08MPa, higher than the fireproof coating for being not added with expanding spike.
Description
Technical field
The present invention relates to fireproof coating technical field, more particularly to a kind of phosphate cement fireproof coating and its preparation side
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 enough time 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, char volume is big in such as flammability test.
The content of the invention
It is an object of the invention to provide the phosphorus that a kind of phosphate cement fireproof coating and preparation method thereof, the present invention are provided
Char volume is 0 in acid salt cement fireproof coating flammability test.
In order to realize foregoing invention purpose, the present invention provides following technical scheme：
The invention provides a kind of phosphate cement fireproof coating, obtained by the raw material comprising following mass parts：
It is preferred that, described phosphate cement fireproof 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, light dolomite and the one kind or several crossed in calcined dolomite
Kind.
It is preferred that, the compound retarder includes potassium chloride and borax.
It is preferred that, the expansion spike is expanded perlite and/or vermiculite.
It is preferred that, the expanded perlite is closed perlite and/or perforate perlite.
Present invention also offers the preparation method of the phosphate cement fireproof coating described in above-mentioned technical proposal any one,
Comprise the following steps：
Expansion spike is disperseed with water, the water for obtaining expanding spike mixes thing；
Dihydric phosphate, magnesium source and compound retarder are mixed, cement base-material is obtained；
The water of the expansion spike is mixed into thing and cement base-material is mixed, phosphate cement fireproof coating is obtained.
It is preferred that, it is described to be separated into ultrasonic disperse.
It is preferred that, the supersonic frequency of the ultrasonic disperse is 35000~45000Hz, the ultrasonic power of the ultrasonic disperse
For 100~150W, the time of the ultrasonic disperse is 1~10min.
The invention provides a kind of phosphate cement fireproof coating, obtained by the raw material comprising following mass parts：Di(2-ethylhexyl)phosphate
10~20 parts of hydrogen salt；5~15 parts of magnesium source；0.5~1.5 part of compound retarder；Expand 0~2 part of spike；1~10 part of water.The present invention
The phosphate cement fireproof coating char volume of offer is 0, with low coagulation speed, presetting period up to 67min, during final set
Between up to 74min.In addition, the fluidity of phosphate cement fireproof coating that the present invention is provided is improved largely, be 180~
215mm；The fireproof coating has high bond strength, and its adhesion strength is 1.20~2.08MPa, higher than being not added with expanding spike
Fireproof coating.
Present invention also offers a kind of preparation method of phosphate cement fireproof coating, comprise the following steps：Expansion is mixed
Material is disperseed with water, and the water for obtaining expanding spike mixes thing；Dihydric phosphate, magnesium source and compound retarder are mixed, water is obtained
Mud base；The water of the expansion spike is mixed into thing and cement base-material is mixed, phosphate cement fireproof coating is obtained.The present invention is provided
Preparation method it is simple to operate, 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 phosphate cement fireproof coating, obtained by the raw material comprising following mass parts：
The phosphate cement fireproof coating that the present invention is provided is obtained by the raw material comprising 10~20 parts of dihydric phosphates, preferably
For 12~18 parts, more preferably 14~16 parts.The present invention does not have any particular/special requirement to the source of the dihydric phosphate, uses
The dihydric phosphate in source well known to those skilled in the art, it is specific such as commercially available potassium dihydrogen phosphate, sodium dihydrogen phosphate
With the one or more in aluminium dihydrogen phosphate.In the present invention, in the dihydric phosphate P mass content be preferably 22~
31%, more preferably 24~28%, most preferably 26%；K mass content is preferably 12~17% in the potassium dihydrogen phosphate,
More preferably 13~16%, most preferably 15~15.5%.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 phosphate cement fireproof coating that the present invention is provided is by comprising 5~15
The raw material in part magnesium source is obtained, preferably 8~12 parts, more preferably 10 parts.In the present invention, the magnesium source is preferably burning magnesium
Sand, caustic-calcined magnesite, light dolomite and the one or more crossed in calcined dolomite.The present invention does not appoint to the source in the magnesium source
What particular/special requirement, using the magnesium source in source well known to those skilled in the art, it is specific such as commercially available burning magnesia, it is light-burned
Magnesia, light dolomite cross calcined dolomite.In the present invention, MgO mass content is preferably greater than and is equal in the magnesium source
98%, more preferably greater than equal to 99%.In the present invention, the particle diameter in the magnesium source is preferably 250~350nm, more preferably
280~330nm, most preferably 300nm.
On the basis of 10~20 parts of dihydric phosphates, the phosphate cement fireproof coating that provides of the present invention by comprising 0.5~
The raw material of 1.5 parts of compound retarders is obtained, preferably 0.8~1.2 part, more preferably 1 part.In the present invention, it is described compound slow
Solidifying agent preferably comprises potassium chloride and borax.The present invention does not have any particular/special requirement to the source of the potassium chloride and borax, uses
The potassium chloride and borax in source well known to those skilled in the art, it is specific such as commercially available potassium chloride and borax.In this hair
In bright, the mass content of potassium chloride is preferably 5~20% in the compound retarder, and more preferably 7~12%, be most preferably
10%；The mass content of borax is preferably 80~95%, more preferably 88~93%, most preferably 90%.In the present invention, institute
The particle diameter for stating 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 phosphate cement fireproof coating that the present invention is provided is by comprising 0~2 part
The raw material of expansion spike is obtained, preferably 0.5~1.5 part, more preferably 1 part.The present invention, the expansion spike is expanded pearlite
Rock and/or vermiculite.The present invention does not have any particular/special requirement to the source of the expansion spike, ripe using those skilled in the art institute
Know the expansion spike in source, it is specific such as commercially available expanded perlite (Expanded Perlite, abbreviation EP) or vermiculite.
In the present invention, the expanded perlite is preferably closed perlite (abbreviation closed pore EP) and/or (the abbreviation perforate of perforate perlite
EP)；The particle diameter of the closed perlite is preferably 212~550 μm, more preferably 300~500 μm and/or 220~260 μm, most
Preferably 350~450 μm and/or 230~250 μm；The particle diameter of the perforate perlite is preferably 70~550 μm, more preferably
200~500 μm and/or 220~260 μm, most preferably 300~400 μm and/or 230~250 μm.In the present invention, it is described
300~500 μm and/or 220~260 μm be specifically the closed perlite particle diameter can be 300~500 μm or 220~
260 μm, or the closed perlite comprising 300~500 μm of particle size ranges and 220~260 μm of particle size ranges simultaneously.In the present invention
In, MgO mass content is 13%, SiO in the vermiculite2Mass content be 43%, F2O3Mass content be 21%,
Al2O3Mass content be 19%；The average grain diameter of the vermiculite is 45 μm.
On the basis of 10~20 parts of dihydric phosphates, the phosphate cement fireproof coating that the present invention is provided is by comprising 1~10
The raw material of part water is obtained, preferably 2~8 parts, more preferably 4~6 parts.
The present invention does not have any particular/special requirement to the preparation method of the phosphate cement fireproof coating, by each raw material components
It is mixed directly.In the present invention, the preparation method of the phosphate cement fireproof coating preferably comprises following steps：
Expansion spike is disperseed with water, the water for obtaining expanding spike mixes thing；
Dihydric phosphate, magnesium source and compound retarder are mixed, cement base-material is obtained；
The water of the expansion spike is mixed into thing and cement base-material is mixed, phosphate cement fireproof coating is obtained.
The present invention is disperseed expansion spike with water, and the water for obtaining expanding spike mixes thing.In the present invention, the expansion
The water-dispersible mode of spike is preferably ultrasonic disperse；The supersonic frequency of the ultrasonic disperse is preferably 35000~45000Hz,
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 be preferably 1~
10min, more preferably 2~8min, most preferably 3~5min.The present invention will expand the spike independent ultrasonic disperse of water, can make
Spike must be expanded and disperse evenly in water, it is to avoid added water after individually mixing expansion spike and other solid powders
Stir and produce the reuniting effect of expansion spike.
The present invention mixes dihydric phosphate, magnesium source and compound retarder, obtains cement base-material.In the present invention, it is described
The mixing of 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 time of the mixing is preferred
For 1~3min, more preferably 2min.The present invention individually mixes dihydric phosphate, magnesium source and compound retarder, can make
Obtain solid powder to be sufficiently mixed uniformly, so that the product generated after the reaction that adds water is evenly distributed, obtained coating property is uniformly steady
It is fixed.
The water for obtaining the expansion spike is mixed after thing and cement base-material, and the water of the expansion spike is mixed thing and water by the present invention
Mud base is mixed, and obtains phosphate cement fireproof coating.In the present invention, the water of the expansion spike mixes thing and cement base-material
Mixing 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 is preferably
135~145r/min, more preferably 138~142r/min, most preferably 140r/min；The time of the mixed on low speed is 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 preferably
275~295r/min, more preferably 280~290r/min, most preferably 285r/min；The time of the mixed at high speed is preferably
25~35s, more preferably 28~32s, most preferably 30s.The water of the expansion spike is mixed the present invention into thing and cement base-material is first
Mix slowly so that solid and liquid are gradually mixed, prevent from causing solid particle and liquid splash because stir speed (S.S.) is too fast, quickly
Stirring to be sufficiently mixed between liquid and solid particle uniformly.
Fire resistant coating is used as present invention also offers the phosphate cement fireproof coating described in a kind of above-mentioned technical proposal
Using the thickness of the fire resistant coating is 1~10mm.The phosphate cement fireproof coating is directly coated on base material by the present invention
Surface is that can obtain fire resistant coating.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 those skilled in the art
Known coating method is implemented.
In the present invention, the base material can be specifically flammable building and ornament materials, such as timber, fiberboard, paper
Plate and its product etc.；It can also be the surface fireproof of the structure or service portion, such as beam column plate major structure of construction of building
With the surface fireproof of building inside and outside wall；The fire prevention position of structures can also be built for bridge tunnel etc..
Phosphate cement fireproof coating provided with reference to embodiment the present invention and preparation method thereof carries out detailed
Illustrate, 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 270~550 μm of closed pore EP in table 4, potassium dihydrogen phosphate, burning magnesia, compound retarder and water, system
Standby phosphate cement fireproof coating.
Expanded perlite is subjected to ultrasonic disperse with water, supersonic frequency is 40000Hz, and ultrasonic power is 120W, ultrasound point
The scattered time is 5min, and the water for obtaining expanded perlite mixes 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 base-material.
The water of expanded perlite is mixed into thing and cement base-material sequentially carries out mixed on low speed and mixed at high speed, phosphoric acid salt solution is obtained
Mud 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
The stir speed (S.S.) of mixing 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 19.6~21.3 DEG C, and relative humidity is 38~39%.
The charge ratio and results of property of the phosphate cement fireproof coating of 4 embodiment of table 1
Embodiment 2
According to the ratio of 212~270 μm of closed pore EP in table 5, sodium dihydrogen phosphate, burning magnesia, compound retarder and water, system
Standby phosphate cement fireproof coating.
Expanded perlite is subjected to ultrasonic disperse with water, supersonic frequency is 40000Hz, and ultrasonic power is 120W, ultrasound point
The scattered time is 5min, and the water for obtaining expanded perlite mixes thing.
Sodium dihydrogen phosphate, burning magnesia and compound retarder are stirred and mixed, stir speed (S.S.) is 140r/min, stirring mixing
Time be 1min, obtain cement base-material.
The water of expanded perlite is mixed into thing and cement base-material sequentially carries out mixed on low speed and mixed at high speed, phosphoric acid salt solution is obtained
Mud 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
The stir speed (S.S.) of mixing 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 270~550 μm of perforate EP in table 6, aluminium dihydrogen phosphate, caustic-calcined magnesite, compound retarder and water, system
Standby phosphate cement fireproof coating.
Expanded perlite is subjected to ultrasonic disperse with water, supersonic frequency is 40000Hz, and ultrasonic power is 120W, ultrasound is mixed
The time of conjunction is 5min, and the water for obtaining expanded perlite mixes thing.
Aluminium dihydrogen phosphate, caustic-calcined magnesite and compound retarder are stirred and mixed, stir speed (S.S.) is 140r/min, stirring mixing
Time be 1min, obtain cement base-material.
The water of expanded perlite is mixed into thing and cement base-material sequentially carries out mixed on low speed and mixed at high speed, phosphoric acid salt solution is obtained
Mud 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
The stir speed (S.S.) of mixing 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 212~270 μm of perforate EP, potassium dihydrogen phosphates, ratios for crossing calcined dolomite, compound retarder and water in table 7,
Prepare phosphate cement fireproof coating.
Expanded perlite is subjected to ultrasonic disperse with water, supersonic frequency is 40000Hz, and ultrasonic power is 120W, ultrasound is mixed
The time of conjunction is 5min, and the water for obtaining expanded perlite mixes thing.
By potassium dihydrogen phosphate, calcined dolomite and compound retarder stirring mixing are crossed, stir speed (S.S.) is 140r/min, and stirring is mixed
The time of conjunction is 1min, obtains cement base-material.
The water of expanded perlite is mixed into thing and cement base-material sequentially carries out mixed on low speed and mixed at high speed, phosphoric acid salt solution is obtained
Mud 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
The stir speed (S.S.) of mixing 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 7 embodiment of table 4
Embodiment 5
According to the ratio of vermiculite in table 8, potassium dihydrogen phosphate, light dolomite, compound retarder and water, phosphoric acid salt solution is prepared
Mud fireproof coating.
Vermiculite is subjected to ultrasonic disperse with water, supersonic frequency is 40000Hz, ultrasonic power is 120W, ultrasonic mixing when
Between be 5min, obtain vermiculite water mix thing.
By vermiculite, light dolomite and compound retarder stir mix, stir speed (S.S.) is 140r/min, stirring mixing when
Between be 1min, obtain cement base-material.
The water of vermiculite is mixed into thing and cement base-material sequentially carries out mixed on low speed and mixed at high speed, phosphate cement fire prevention is obtained
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 mixed at high speed
Stir speed (S.S.) 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 8 embodiment of table 5
Embodiment 6
According to the ratio of vermiculite in table 9, sodium dihydrogen phosphate, burning magnesia, compound retarder and water, phosphate cement is prepared
Fireproof coating.
Vermiculite is subjected to ultrasonic disperse with water, supersonic frequency is 40000Hz, ultrasonic power is 120W, ultrasonic mixing when
Between be 5min, obtain vermiculite water mix thing.
Vermiculite, burning magnesia and compound retarder are stirred and mixed, stir speed (S.S.) is 140r/min, the time of mixing is stirred
For 1min, cement base-material is obtained.
The water of vermiculite is mixed into thing and cement base-material sequentially carries out mixed on low speed and mixed at high speed, phosphate cement fire prevention is obtained
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 mixed at high speed
Stir speed (S.S.) 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 9 embodiment of table 6
Embodiment 7
According to the ratio of vermiculite in table 10, aluminium dihydrogen phosphate, burning magnesia, compound retarder and water, phosphoric acid salt solution is prepared
Mud fireproof coating.
Vermiculite is subjected to ultrasonic disperse with water, supersonic frequency is 40000Hz, ultrasonic power is 120W, ultrasonic mixing when
Between be 5min, obtain vermiculite water mix thing.
Vermiculite, burning magnesia and compound retarder are stirred and mixed, stir speed (S.S.) is 140r/min, the time of mixing is stirred
For 1min, cement base-material is obtained.
The water of vermiculite is mixed into thing and cement base-material sequentially carries out mixed on low speed and mixed at high speed, phosphate cement fire prevention is obtained
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 mixed at high speed
Stir speed (S.S.) 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 10 embodiment of table 7
Embodiment 8
According to the ratio of vermiculite in table 11, potassium dihydrogen phosphate, caustic-calcined magnesite, compound retarder and water, phosphoric acid salt solution is prepared
Mud fireproof coating.
Vermiculite is subjected to ultrasonic disperse with water, supersonic frequency is 40000Hz, ultrasonic power is 120W, ultrasonic mixing when
Between be 5min, obtain vermiculite water mix thing.
Vermiculite, caustic-calcined magnesite and compound retarder are stirred and mixed, stir speed (S.S.) is 140r/min, the time of mixing is stirred
For 1min, cement base-material is obtained.
The water of vermiculite is mixed into thing and cement base-material sequentially carries out mixed on low speed and mixed at high speed, phosphate cement fire prevention is obtained
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 mixed at high speed
Stir speed (S.S.) 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 11.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 vermiculite in table 12, aluminium dihydrogen phosphate, caustic-calcined magnesite, compound retarder and water, phosphoric acid salt solution is prepared
Mud fireproof coating.
Vermiculite is subjected to ultrasonic disperse with water, supersonic frequency is 40000Hz, ultrasonic power is 120W, ultrasonic mixing when
Between be 5min, obtain vermiculite water mix thing.
Vermiculite, caustic-calcined magnesite and compound retarder are stirred and mixed, stir speed (S.S.) is 140r/min, the time of mixing is stirred
For 1min, cement base-material is obtained.
The water of vermiculite is mixed into thing and cement base-material sequentially carries out mixed on low speed and mixed at high speed, phosphate cement fire prevention is obtained
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 mixed at high speed
Stir speed (S.S.) 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 12.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 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 67min, and final setting time is most long to can reach 74min.In addition, this Shen
What the fluidity for the phosphate cement fireproof coating that please be provided was obtained is greatly improved, and is 180~215mm, easy film forming, and
Film strength is 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》(JGJ110-2008), test specimen manufacturing process is：Wet rag is first used before experiment
Mortar plate surface is soaked, the sample being stirred is coated in mortar plate surface afterwards, two pieces of Mortar Plates are slightly compressed to one
Rise so that mortar thickness is 2~15mm, scrape off the slurry of surrounding spilling, place and conserve 3 days indoors, then use pull-out test
Machine (XH-6000N, Beijing world spark technology Development Co., Ltd) is tested, and takes the arithmetic of every group of 3 test specimen test values to put down
Average 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 tested
As a result it 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 bonding characteristic, and adhesion strength is 1.2
~2.08MPa, higher than the cement paint for being not added with expanding spike.
The fire protecting performance of phosphate cement fireproof coating of the present invention to obtaining is tested, and tests reference standard《Decorations
Face type fireproof coating》(GB12441-2005), test specimen manufacturing process is：Before experiment with wet rag by gross thickness is 5mm five layers
Birch wood (300mm × 100mm) is soaked, and the slurry being stirred is coated in into board surface, and coating layer thickness is 2.5mm, and
Plank is lifted into 120mm, its free-falling is allowed to be vibrated, four sides of plank are preferably subjected to edge sealing processing, indoors
Test specimen is put into after 50 DEG C of constant temperature dries 40 hours in baking oven and taken out by maintenance after 1 day, 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), test specimen be placed on small brass cup above, makes test specimen 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 meets the requirements, and prevents
Fiery performance is significantly increased.
As seen from the above embodiment, the invention provides a kind of phosphate cement fireproof coating, following mass parts are included
Raw material is obtained：10~20 parts of dihydric phosphate；5~15 parts of magnesium source；0.5~1.5 part of compound retarder；Expand 0~2 part of spike；
1~10 part of water.The phosphate cement fireproof coating that the present invention is provided has low coagulation speed, and presetting period up to 67min is whole
Up to 74min of solidifying time.In addition, the fluidity for the phosphate cement fireproof coating that the present invention is provided is improved largely, it is
180~215mm；The fireproof coating has high bond strength, and its adhesion strength is 1.2~2.08MPa, is mixed higher than expansion is not added with
The fireproof coating of material.
Present invention also offers the preparation method that a kind of phosphate cement fireproof coating is made, comprise the following steps：Will expansion
Spike is disperseed with water, and the water for obtaining expanding spike mixes thing；Dihydric phosphate, magnesium source and compound coagulant are mixed, obtained
Cement base-material；The water of the expansion spike is mixed into thing and cement base-material is mixed, phosphate cement fireproof coating is obtained.The present invention is carried
The preparation method of confession 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 phosphate cement fireproof coating, is obtained by the raw material comprising following mass parts：
2. phosphate cement fireproof coating according to claim 1, it is characterised in that described phosphate cement fire prevention is applied
Material, is obtained by the raw material comprising following mass parts：
3. phosphate cement fireproof coating according to claim 1 or 2, it is characterised in that the dihydric phosphate is phosphorus
One or more in acid dihydride potassium, sodium dihydrogen phosphate and aluminium dihydrogen phosphate；
The particle diameter of the dihydric phosphate is 45~3500nm.
4. phosphate cement fireproof coating according to claim 1 or 2, it is characterised in that the magnesium source be burning magnesia,
Caustic-calcined magnesite, light dolomite and the one or more crossed in calcined dolomite.
5. phosphate cement fireproof coating according to claim 1 or 2, it is characterised in that the compound retarder is included
Potassium chloride and borax.
6. phosphate cement fireproof coating according to claim 1 or 2, it is characterised in that the expansion spike is expansion
Perlite and/or vermiculite.
7. phosphate cement fireproof coating according to claim 6, it is characterised in that the expanded perlite is that closed pore is precious
Zhu Yan and/or perforate perlite.
8. the preparation method of the phosphate cement fireproof coating described in claim 1~7 any one, is comprised the following steps：
Expansion spike is disperseed with water, the water for obtaining expanding spike mixes thing；
Dihydric phosphate, magnesium source and compound retarder are mixed, cement base-material is obtained；
The water of the expansion spike is mixed into thing and cement base-material is mixed, phosphate cement fireproof coating is obtained.
9. the preparation method of phosphate cement fireproof coating according to claim 8, it is characterised in that it is described be separated into it is super
Sound disperses.
10. the preparation method of phosphate cement fireproof coating according to claim 9, it is characterised in that the ultrasound point
Scattered supersonic frequency is 35000~45000Hz, and the ultrasonic power of the ultrasonic disperse is 100~150W, the ultrasonic disperse
Time is 1~10min.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN102245530A (en) * | 2008-10-07 | 2011-11-16 | 格兰克雷特公司 | Heat resistant phosphate cement |
| CN102167531A (en) * | 2011-03-07 | 2011-08-31 | 西南科技大学 | Method for preparing expanded vermiculite by utilizing ultrasonic pretreatment way |
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Application publication date: 20170922 |