CN109082182A - A kind of Water-borne inflation type refractory coating and preparation method thereof - Google Patents

Abstract

The present invention provides a kind of Water-borne inflation type refractory coatings, it is made of the raw material of following weight percent meter: water-based fireproof lotion 20~30%, aqueous composite Nano fire prevention dispersion slurry 5%~10%, acid source 20~30%, carbon source agent 1~3%, waterborne flame retardant foaming agent 8~15%, toughener 0.5~1%, lead-free filler 5~10%, aqueous wetting dispersing agent 1~3%, bleeding agent 0.2%~1%, solubilized stabilizer 0.5%~1%, anti-fouling agent 0.5%~2%, amine neutralizer 0.5%~2%, antifreezing agent 0.5%~2%, coalescing agent 0.5%~2% and deionized water 8%~15%.Water-borne inflation type refractory coating of the present invention makes full use of the complementary advantage of storeroom, can be realized after the coating of the substrate surfaces such as construction steel structure, significantly improves the fire rating intensity of the substrates such as steel construction, art work.

Description

A kind of Water-borne inflation type refractory coating and preparation method thereof

Technical field

The present invention relates to water-based fireproof field of material technology, specifically a kind of Water-borne inflation type refractory coating and its preparation Method.

Background technique

With the development of the industries such as building, traffic, petrochemical industry, electric power, construction material ceaselessly updates, steel construction Because its intensity is high, nimble, the short construction period from heavy and light, structure type, anti-seismic performance is good, the overall merits such as recoverable, It is under construction to be widely used as the most important structure type of volumed space building.

Meanwhile with the rapid development of steel construction application field, steel structure protective technical problem is more prominent, steel Though structural material itself is not burn material, steel constructions for high temperature resistant function difference deadly defect.It is acted in high temperature of fire Under, because being brought rapidly up arrival critical-temperature, mechanics function such as yield strength, elasticity modulus, load performance etc. all can be with temperature Raising and reduce rapidly, mechanical performance, such as yield point, tension and elasticity modulus etc. decline, so must be adopted to steel construction Some corresponding fire prevention measures are taken, flameproof protection is carried out, to prevent steel construction in the environment of high-temp combustion, large deformation occurs and causes So that building substrate is collapsed, lives and properties is made to sustain losses severely.

In the art work of building, such as the steel material skeleton of ceiling, acoustic material, window, seat side plate component, All there is the performance of flame propagation high temperature deformation, allows it was recognized that steel structure fireproof protection is a very important problem. These fields propose requirement that is higher, updating to the kind and performance of flameproof protection coating, mating and construction again, and then push The development and application of technological improvement, the raising and high-performance fire-resistant coating variety of traditional solvent-borne fireproof coating kind, especially It is the hot spot that features type aqueous fire-proof coating more becomes development.This promotes pushing the intersection in material subject field, infiltration And integrated application, the technology shifts upgrading of coating industry reach building main body and art work fire protection flame retarding, to prevent from burning The progress of deformation performance test method meets the requirement of building substrate fire protection design standard rule, is of great significance.

Traditional solvent-borne fireproof coating at present, also there is also some disadvantages, when burning, can discharge the halogen resistance of toxic gas It is undesirable etc. to fire agent, the expansion multiplying power of expanding layer and structure.Since steel construction is during long-term outdoor harsh environment, Mou Xiepin Kind fireproof coating protective performance it is not ideal enough, it is difficult to protect substrate, cause a large amount of metal needs want freshening, more exchange device and Component causes the serious waste of resource and the energy, or even causes disaster accident and cause direct economic loss etc. but these disadvantages, It will constantly be overcome by practice, reach fireproof needs.

On the other hand, the environmental regulation that various countries formulate all has stringent limitation to volatile organic matter in coating (VOCs), molten Dosage form fireproof coating contains a large amount of solvent and meeting remaining toxic monomers, VOCs organic volatile, and in drying and forming-film, solvent is waved The harmful substance generated is sent out, there is certain degree of harm the seriously polluted of environment is studied intensively and be developed and is nontoxic environment and health The outstanding fire-resistant coating for steel structure of low pollution, fire-proof function, is a problem to be solved.

Summary of the invention

The present invention provides a kind of Water-borne inflation type refractory coating, can be formed in substrate surfaces such as coated steel constructions effectively anti- Fire.

A kind of Water-borne inflation type refractory coating is made of the raw material of following weight percent meter: water-based fireproof lotion 20~ 30%, aqueous composite Nano fire prevention dispersion slurry 5%~10%, acid source 20~30%, carbon source agent 1~3%, waterborne flame retardant hair Infusion 8~15%, toughener 0.5~1%, lead-free filler 5~10%, aqueous wetting dispersing agent 1~3%, bleeding agent 0.2%~ 1%, solubilized stabilizer 0.5%~1%, anti-fouling agent 0.5%~2%, amine neutralizer 0.5%~2%, antifreezing agent 0.5%~ 2%, coalescing agent 0.5%~2% and deionized water 8%~15%.

Further, the aqueous composite Nano fire prevention dispersion slurry be by magnesium hydroxide that partial size is 30~70nm, The solid content that partial size is 30~70nm boehmite, partial size is 30~70nm sepiolite, deionized water, aqueous wetting dispersing agent composition For 20%~40% aqueous composite Nano fire prevention dispersion slurry.

Further, the aqueous composite Nano fire prevention dispersion slurry is made according to following technique: sequentially add from Sub- water, aqueous wetting dispersing agent stir evenly, and magnesium hydroxide, boehmite, sepiolite are then added while stirring, then exists Disperse 30min under the revolving speed of 1800rpm, open grinder, circular grinding to median is made aqueous compound in 50~80nm Nanometer fireproof dispersion slurry.

Further, the acid source is at least one of poly- polyphosphoric acid amine, ammonium polyphosphate, phosphoric acid cyanamide.

Further, the carbon source agent is at least one of dextrin, pentaerythrite, urea, polyurethanes.

Further, the waterborne flame retardant foaming agent is that phosphate compound, melamine, chlorine is cured, sulfonate, zinc borate At least one of；The toughener is at least one of chlorinated paraffin, Lin acid San Jia Pin, halogenated alkyl phosphate ester；It is described Lead-free filler is at least one of titanium dioxide, kaolin, silicon powder.

Further, the aqueous wetting dispersing agent is polyvinyl alcohol, in neopelex, calgon It is at least one；The bleeding agent is organosilicon aerosol-OT salt, fatty alcohol polyoxyalkyl ether, fatty alcohol polyoxy second At least one of alkene ether；It is described solubilising stabilizer be fatty alcohol polyoxyethylene ether, alkyl phenol polyoxyethylene ether, alkyl glycosides, At least one of N-2 methyl glucamine；The anti-fouling agent is polyether grafting silicone oil, water nano hydridization silicone oil, octyl At least one of triethoxy modified silicon oil；The amine neutralizer be diethanol amine, lauryl amine or ethanol amine in extremely Few one kind；The antifreezing agent is at least one of glycerine, isopropanol, urea；The coalescing agent is ethyl alcohol, propylene glycol fourth At least one of ether or dipropylene glycol methyl ether.

Further, the water-based fireproof lotion is made of the raw material of following weight percentage: acrylic compounds mix monomer 35%~45%, crosslinking agent 1%~8%, emulsifier 1%~2%, initiator I0.1%~1%, initiator II0.1%~ 1%, lithium metasilicate 10%~15%, neutralizer 3%~15%, remaining is deionized water；

The acrylic compounds mix monomer is made of acrylic acid, methyl methacrylate and acrylic acid-beta-hydroxy ethyl ester；Institute Stating crosslinking agent is at least one of acrylamide, diacetone acrylamide；The emulsifier is lauryl sodium sulfate, 12 At least one of sodium alkyl benzene sulfonate；The initiator I is at least one of potassium peroxydisulfate, ammonium persulfate；The initiation Agent II is at least one of benzoyl peroxide, azodiisobutyronitrile；The lithium metasilicate is poly lithium metasilicate, dioxy therein The mass percentage content of SiClx is 20.9%, specific surface area are as follows: 40~50m²/ g, particle size range 25-70nm；The neutralization Agent is ammonium hydroxide, triethylamine and N, at least one of N- dimethylethanolamine.

Further, step is made the water-based fireproof lotion by the following method: weighing acrylic compounds by formula ratio Mix monomer and emulsifier are dispersed with stirring 20~35 minutes under the revolving speed of 2000~3000rpm, until pretreatment kettle carries out pre- cream Change, is prepared into pre-emulsification mixed liquor；It takes the 60%~65% of pre-emulsification mixed liquor gross mass to be transferred to reaction kettle, initiator is added I and deionized water, remaining pre-emulsification mixed liquor are transferred to head tank kettle；Reaction kettle is warming up to 75 DEG C~85 DEG C, silicon is added dropwise Sour lithium and initiator I, 1~1.5h are dripped off, and initiator II and remaining pre-emulsification mixed liquor is then added, and reaction temperature is kept to exist 50~65 DEG C, 2~3h is reacted, 35~45 DEG C of addition crosslinking agents are then cooled to, the reaction was continued 1.5~3hr is until blueing light, so Neutralizer is added afterwards and adjusts pH to 6.5-7, stops heating, cooling down, i.e. acquisition water-based fireproof lotion.

The preparation method of above-mentioned Water-borne inflation type refractory coating, comprises the following steps: by formula ratio, accounting for ionized water 10%~30% deionized water of gross mass is added in dispersion cylinder I, be then added aqueous wetting dispersing agent 20%, it is unleaded Filler and bleeding agent stir 20~30min under the revolving speed of 1500rpm, open sand mill, are ground, until fineness is 30 μm When shut down, obtain pre-dispersed slurry；It removes the 40~50% of ionized water gross mass to be added in dispersion cylinder II, sequentially add aqueous Aqueous composite Nano fire prevention dispersion slurry, acid source, carbon source agent, waterborne flame retardant foaming agent, aqueous wetting is added in fire prevention lotion afterwards The 20% of dispersing agent stirs 20~30min under the revolving speed of 800-1000rpm, pre-dispersed slurry, anti-fouling agent is then added, Solubilized stabilizer, antifreezing agent, coalescing agent, remaining deionized water are added under the revolving speed of 600~800rpm, continue dispersion 20~ Then 40min is added amine neutralizer and adjusts pH to 7-9, filtering and discharging, i.e. acquisition Water-borne inflation type refractory coating.

The invention has the following advantages:

(1) Water-borne inflation type refractory coating of the invention does not make without environmentally harmful volatile matters such as formaldehyde, VOCs With the formaldehyde, isocyanates and metal ion compound of traditional solvent type coating, cumulative effect will not be generated to use environment, it is right Water source and environment are very safe.

(2) product of the invention, other than due fire-proof function, Corrosion Protection is also extremely excellent, can effectively protect Demonstrate,prove be coated substrate closure is strong, anticorrosion, it is wear-resisting scrape, acid and alkali-resistance, shock resistance, chemical-resistant, outdoors due to substrate To be had unique by the erosion of ultraviolet light, visible light, oxygen and chemical substance and microorganism, closed state enamel plasma membrane layer Consistency resists the pollution in air, such as: coating base may be implemented in the saline and alkaline substance erosion of acid rain, smog, dust, seashore Discoloration aging, the yellowing resistance of material whole coated body under illumination and wet environment are much higher by it to the dicoration of substrate His coating.

(3) coating of the invention, the protection membrane coat decomposed after generating under the burning of high temperature open fire is good fire resisting again Material can also help the fire resistance for improving substrate, while the vapor that it is released also can be used as a kind of smoke suppressant, has and does not produce Raw corrosivity halogen gas and pernicious gas, non-volatile, effect is lasting, it is nontoxic, smokeless, without dripping off the features such as.And it can be high in burning Under the conditions of temperature, effectively heat is prevented to transmit to substrate, starvation prevents drippage, open fire sprawling, will not generate organic matter high temperature The pungent peculiar smell and smog decomposed can be prevented effectively to burn away, substrate heating is delayed to cause to deform, so that being coated substrate Fire-retardant fireproof protective effect haves a qualitative leap.

(4) present invention is using unique nanoparticle technology, the sepiolite handled using nanosizing particle, the small grain of boehmite Diameter may be implemented to penetrate into substrate gap with coating, cooperate with other auxiliary agents, and strong dehydration property object is generated under burning condition Matter absorbs a large amount of latent heat by being released by thermal decomposition in conjunction with water in combustion process, to reduce material that it is filled in fire Surface temperature in flame is able to suppress the effect that polymer is decomposed and is significantly cooled to generated fuel gas.

(5) present invention has studied nano flame retardant while having synthesized environment-friendly type aqueous fire prevention lotion using emulsion polymerization Dispersion composition and additive amount, make full use of the complementary advantage of storeroom, reach the optimum balance of performance, hence it is evident that promote coating and meet Expansion rate under the conditions of fire, excellent thermal stability under high temperature, effectively facilitate carburization zone formation reach it is excellent it is fire-retardant, suppression cigarette, fill out It fills the fire protection requirement of triple functions, while flameproof protection substrate, generates strong dehydration property substance, protective layer is enable to join rapidly With carbonization, protective film is generated in combustible surface after dehydration, starvation can prevent to burn away；Make flammable high polymer Concentration decline, is dehydrated the concentration of aqueous vapor the dilution imflammable gas and oxygen of releasing, and is not likely to produce flammable volatile matter, thus It prevents open fire with a loud crash and propagation of flame, significantly improves the fire rating intensity and anticorrosive property of the substrates such as steel construction.

(6) aqueous environment protection of the invention fire prevention lotion uses poly lithium metasilicate and polymerize, cooperates with other components, can Powerful chemical is generated in metal surfaces such as moist, dry steel constructions to combine, and is formed superpower adhesive force, up to 10MPa or more, is High performance and long service life anticorrosive paint provides important indicator, with the common fireproof coating product corrosion resistance of identical film thickness improve 30% with On, it is increased to 10MPa or more with substrate adhesive force, is suitble to the direct coating on moist metal surface, it is anti-to solve China's fire prevention In rotten engineering wet environment cannot construct, solvent based coating not environmentally, dangerous, performance is low and be difficult to the technologies such as long-effective corrosion hardly possible Topic.

In conclusion Water-borne inflation type refractory coating provided by the invention compared with common fireproof coating, is based on Water-borne modification Combination solution after preparation technique makes full use of the complementary advantage of storeroom, effectively prevent and object steel construction, decoration material are built in reduction The fire protection flame retarding of material, the performances such as anticorrosion, which can win, one raises, and reaches the ideal fire retardant anticorrosion erosion impact of performance and consistency of performance. This point push promote industrial circle water system industry technology shifts upgrading, reach industrial circle industry production capacity upgrading into Step is of great significance to the harmonious relationships of energy saving, protection environment, creation man and nature.

Specific embodiment

Invention is further described in detail combined with specific embodiments below.It should be appreciated that schematic implementation below Example and explanation are only used to explain the present invention, not as a limitation of the invention.

Embodiment 1-3

The present invention also provides the formula of several specific implementations such as following table, the percentage in table is mass percent:

Water-based fireproof lotion specific embodiment in embodiment 1-3 is as follows:

Although above-mentioned formula is slightly different on ingredient, Water-borne inflation type refractory coating skill achieved obtained Art effect is generally consistent.

Step is made the water-based fireproof lotion of the above embodiments 1-3 China by the following method: the water-based fireproof Step is made lotion by the following method: acrylic compounds mix monomer and emulsifier is weighed by formula ratio, in 2000~3000rpm Revolving speed under be dispersed with stirring 20~35 minutes, until pretreatment kettle carry out pre-emulsification, be prepared into pre-emulsification mixed liquor；Take pre-emulsification mixed It closes the 60%~65% of liquid gross mass and is transferred to reaction kettle, initiator I and deionized water is added, remaining pre-emulsification mixed liquor turns Move to head tank kettle；Reaction kettle is warming up to 75 DEG C~85 DEG C, lithium metasilicate and initiator I is added dropwise, 1~1.5h is dripped off, then plus Enter initiator II and remaining pre-emulsification mixed liquor, reaction temperature reacts 2~3h, be then cooled to 35~45 at 50~65 DEG C DEG C crosslinking agent being added, then the reaction was continued 1.5~3hr is added neutralizer and adjusts pH to 6.5-7, stop heating until blueing light, Cooling down, i.e. acquisition water-based fireproof lotion.

The Water-borne inflation type refractory coating of above-described embodiment 1-3 the preparation method is as follows: formula ratio is pressed, accounting for ionized water 10%~30% deionized water of gross mass is added in dispersion cylinder I, be then added aqueous wetting dispersing agent 20%, it is unleaded Filler and bleeding agent stir 20~30min under the revolving speed of 1500rpm, open sand mill, are ground, until fineness is 30 μm When shut down, obtain pre-dispersed slurry；It removes the 40~50% of ionized water gross mass to be added in dispersion cylinder II, sequentially add aqueous Aqueous composite Nano fire prevention dispersion slurry, acid source, carbon source agent, waterborne flame retardant foaming agent, aqueous wetting is added in fire prevention lotion afterwards The 20% of dispersing agent stirs 20~30min under the revolving speed of 800-1000rpm, pre-dispersed slurry, anti-fouling agent is then added, Solubilized stabilizer, antifreezing agent, coalescing agent, remaining deionized water are added under the revolving speed of 600~800rpm, continue dispersion 20~ Then 40min is added amine neutralizer and adjusts pH to 7-9, filtering and discharging, i.e. acquisition Water-borne inflation type refractory coating.

Water-borne inflation type refractory coating produced by the present invention has the advantages that

1. environmentally protective, VOC content is lower than 50g/L, is far below national standard GB/T 35602-2017 " green product assessment (coating) ", HJ/T5176-2017 " " steel construction water-based anticorrosive paint ", " want HJ2537-2014 by environmental labelling product technology Seek water paint ", the standards such as GB 24410-2009 " limits of harmful substances in indoor decorating and refurnishing materials water-borne wood coating " It limits, meets national green building requirements；

2. fire protecting performance is prominent, the flammability specification of construction steel structure and art work is to the life for guaranteeing people in building Safety and property safety be it is particularly important, under product standard state, meet GB 14907-2002 " fire-resistant coating for steel structure ", GB 15930-2007 " building ventilation and smoke evacuation system valve ", " component is quick with flameproof protection material by GA/T 714-2007 Heat up fire resistance test method ", GB 50017-2003 " Code for design of steel structures ", GB/T 9779-1988 " Multi wall architectural coatings ", GB/T 9978-1999 " building element fire resistance test method " (neq ISO/FDIS 834-1:1997), GB 15930-1995 The standard of " fire resisting damper test method " limits；

3. anti-flash over limits with oxygen consumption excellent performance, the standard for meeting GB 5464-1999, the noninflammability examination of construction material The principle of proved recipe method, the test method is similar with ISO 1182 and ASTM E136, and the A grade for incombustible material determines；Meet GA111 " the entity room fire test method of surfacing ", this standard are referring to " the full-scale room examination of surfacing of ISO 9705 Test " the public security professional standard write；

4. antiseptic property is prominent, steel component anticorrosive property specification is extremely important to the safety for guaranteeing building, the present invention Under product standard state, coating service life can reach the requirement of ISO12944 standard: under C3~C4 corrosion working conditions, coating Service life reaches the maximum environmental protection of the requirement of projected life, the corrosion resistance of identical film thickness fireproof coating improve 30% with On, it is increased to 10MPa or more with substrate adhesive force, meeting GB50300-2013, " building engineering construction inspection of quality is unified to mark It is quasi- ", GB50212-2014 " building anti-corrosion loses engineering construction specification ", " building anti-corrosion loses engineering construction matter to GB50224-2010 Measure acceptance specification ", JG/T224-2007 " construction steel structure anticorrosive paint ", JT/T695-2007 " concrete bridge structure table Finishing coat aseptic technic condition ", GB50204-2015 " concrete structure engineering construction quality accident specification ", DB11/T 1315- The standards such as 2015 " green building acceptance of work specifications " limit；

5. physical property is outstanding, the fire prevention lotion of product of the present invention polymerize using active silicic acid, makes full use of storeroom Complementary advantage, can be realized and become rusty the active iron rust reaction of surface or concrete structural surface in humid zone, generate chemical bonded refractory It closes, keeps the adhesive force of coating and substrate quite excellent, and current potential is lower than iron, can be used as galvanic anode protection break iron and be not corroded, Other components are cooperateed with, may be implemented to generate chemical reaction formation extremely in the interface metal atom for having flash rusting in wet condition Firm chemical bond forms three-dimensional netted highly cross-linked stereochemical structure polymer, which not only has excellent Flexibility and extremely strong corrosion resistance, and superpower adhesive force is generated between metal base.Coated substrate surface effectively mentions Lian Zhengxing, water resistance and the stain resistance of high coating paint film can especially resist the pollution in air, such as: acid rain, smog, dust, The saline and alkaline equal substances on seashore corrode, and anti-corrosion effect persistence is substantially better than common traditional anticorrosive paint.

6. anti-stain characteristic is good, under product standard state, the dirt-resistant of film, chemical resistance are good, outdoors building materials, steel structure Product will be had unique densification by the erosion of chemical substance and microorganism in outdoor harsh environment, the film layer of product of the present invention Degree, ensure that good chemical-resistant.In the humid zone rust direct coating decoration of steel structure surface, no dew point limitation, adhesive force Higher than 10MPa, water resistant, vapour permeance property and excellent anti-corrosion performance are more anti-corrosion under the premise of same film thickness than same fireproof coating Performance improves 30% or more, and effectively realizing to form coated material has closure strong, anticorrosion, wear-resisting scrape, is acid and alkali-resistance, anti- Impact, the performances such as effective protection of fire-retardant fireproof, which can win, one raises, and can especially resist the pollution in air, such as: acid rain, cigarette Mist, dust, seashore the effective protection that corrodes of the substances such as saline and alkaline, Corrosion Protection is significant.

7. application property is good, product of the present invention has molecular weight low, and viscosity is low, reactivity is high, can effectively realize each The different anisotropic material surface of kind of shape with roller coating, spraying, blade coating, brushing execution conditions, it is good soft that film can be assigned Toughness and application property.

8. Water-borne inflation type refractory coating of the present invention, using water as matrix, water resource is abundant, preparation method simple process, packet Dress, storage and convenient transportation are conducive to industrialized production to reduce industrialization cost.

It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention are defined by the appended claims and their equivalents.

Claims (10)

1. a kind of Water-borne inflation type refractory coating, which is characterized in that be made of the raw material of following weight percent meter: water-based fireproof Lotion 20~30%, aqueous composite Nano fire prevention dispersion slurry 5%~10%, acid source 20~30%, carbon source agent 1~3%, water Property flame-retardant expanded dose 8~15%, toughener 0.5~1%, lead-free filler 5~10%, aqueous wetting dispersing agent 1~3%, infiltration Agent 0.2%~1%, solubilized stabilizer 0.5%~1%, anti-fouling agent 0.5%~2%, amine neutralizer 0.5%~2%, antifreezing agent 0.5%~2%, coalescing agent 0.5%~2% and deionized water 8%~15%.

2. Water-borne inflation type refractory coating according to claim 1, which is characterized in that the aqueous composite Nano fire prevention point Granular media slurry be 30~70nm by partial size magnesium hydroxide, partial size be 30~70nm boehmite, partial size is 30~70nm Hai Pao Stone, deionized water, the aqueous composite Nano fire prevention that the solid content of aqueous wetting dispersing agent composition is 20%~40% disperse somaplasm Material.

3. Water-borne inflation type refractory coating according to claim 2, which is characterized in that the aqueous composite Nano fire prevention point Granular media slurry is made according to following technique: sequentially adding deionized water, aqueous wetting dispersing agent stirs evenly, then while stirring Magnesium hydroxide, boehmite, sepiolite is added, 30min is then dispersed under the revolving speed of 1800rpm, opens grinder, circular grinding To median in 50~80nm, aqueous composite Nano fire prevention dispersion slurry is made.

4. Water-borne inflation type refractory coating according to claim 1, which is characterized in that the acid source be poly- polyphosphoric acid amine, At least one of ammonium polyphosphate, phosphoric acid cyanamide.

5. Water-borne inflation type refractory coating according to claim 1, which is characterized in that the carbon source agent is dextrin, season penta At least one of tetrol, urea, polyurethanes.

6. Water-borne inflation type refractory coating according to claim 1, which is characterized in that the waterborne flame retardant foaming agent is phosphorus Ester compound, melamine, chlorine is cured, at least one of sulfonate, zinc borate；The toughener is chlorinated paraffin, phosphoric acid At least one of San Jia Pin, halogenated alkyl phosphate ester；The lead-free filler be titanium dioxide, kaolin, in silicon powder at least It is a kind of.

7. Water-borne inflation type refractory coating according to claim 1, which is characterized in that the aqueous wetting dispersing agent is poly- At least one of vinyl alcohol, neopelex, calgon；The bleeding agent is organosilicon sulfosuccinate two At least one of monooctyl ester sodium salt, fatty alcohol polyoxyalkyl ether, fatty alcohol polyoxyethylene ether；The solubilising stabilizer is fatty alcohol At least one of polyoxyethylene ether, alkyl phenol polyoxyethylene ether, alkyl glycosides, N-2 methyl glucamine；The anti-fouling agent For at least one of polyether grafting silicone oil, water nano hydridization silicone oil, octyl triethoxy modified silicon oil；The amine neutralizer For at least one of diethanol amine, lauryl amine or ethanol amine；The antifreezing agent is glycerine, in isopropanol, urea It is at least one；The coalescing agent is at least one of ethyl alcohol, propandiol butyl ether or dipropylene glycol methyl ether.

8. Water-borne inflation type refractory coating according to claim 1, which is characterized in that the water-based fireproof lotion is by following The raw material of weight percentage forms: acrylic compounds mix monomer 35%~45%, crosslinking agent 1%~8%, and emulsifier 1%~ 2%, initiator I0.1%~1%, initiator II0.1%~1%, lithium metasilicate 10%~15%, neutralizer 3%~15%, Remaining is deionized water；

The acrylic compounds mix monomer is made of acrylic acid, methyl methacrylate and acrylic acid-beta-hydroxy ethyl ester；The friendship Connection agent is at least one of acrylamide, diacetone acrylamide；The emulsifier is lauryl sodium sulfate, dodecyl At least one of benzene sulfonic acid sodium salt；The initiator I is at least one of potassium peroxydisulfate, ammonium persulfate；The initiator II For at least one of benzoyl peroxide, azodiisobutyronitrile；The lithium metasilicate is poly lithium metasilicate, silica therein Mass percentage content be 20.9%, specific surface area are as follows: 40~50m²/ g, particle size range 25-70nm；The neutralizer is Ammonium hydroxide, triethylamine and N, at least one of N- dimethylethanolamine.

9. Water-borne inflation type refractory coating according to claim 8, which is characterized in that the water-based fireproof lotion passes through Following methods step is made: acrylic compounds mix monomer and emulsifier is weighed by formula ratio, under the revolving speed of 2000~3000rpm It is dispersed with stirring 20~35 minutes, until pretreatment kettle carries out pre-emulsification, is prepared into pre-emulsification mixed liquor；Take the total matter of pre-emulsification mixed liquor The 60%~65% of amount is transferred to reaction kettle, and initiator I is added and deionized water, remaining pre-emulsification mixed liquor are transferred to a high position Slot kettle；Reaction kettle is warming up to 75 DEG C~85 DEG C, lithium metasilicate and initiator I is added dropwise, 1~1.5h is dripped off, and initiator is then added II and remaining pre-emulsification mixed liquor, reaction temperature react 2~3h at 50~65 DEG C, are then cooled to 35~45 DEG C of additions and hand over Join agent, then the reaction was continued 1.5~3hr is added neutralizer and adjusts pH to 6.5-7, stop heating, cool down cold until blueing light But, that is, water-based fireproof lotion is obtained.

10. a kind of preparation method of such as Water-borne inflation type refractory coating according to any one of claims 1 to 9, feature exist In comprising the following steps: by formula ratio, 10%~30% deionized water for accounting for ionized water gross mass being added to dispersion cylinder In I, be then added aqueous wetting dispersing agent 20%, lead-free filler and bleeding agent, stir 20 under the revolving speed of 1500rpm~ 30min opens sand mill, is ground, until fineness is shut down when being 30 μm, obtains pre-dispersed slurry；Remove ionized water gross mass 40~50% be added in dispersion cylinder II, sequentially add water-based fireproof lotion, aqueous composite Nano fire prevention dispersion slurry, acid Source, carbon source agent, waterborne flame retardant foaming agent, aqueous wetting dispersing agent is added afterwards 20%, stirred under the revolving speed of 800-1000rpm 20~30min is mixed, pre-dispersed slurry, anti-fouling agent is then added, solubilized stabilizer is added under the revolving speed of 600~800rpm, prevents Freeze agent, coalescing agent, remaining deionized water, continue 20~40min of dispersion, amine neutralizer is then added and adjusts pH to 7-9, mistake Material is filtered out, i.e. acquisition Water-borne inflation type refractory coating.