CN110003742A - A kind of preparation method for removing the aqueous super-thin steel structure fireproof coating of formaldehyde - Google Patents
A kind of preparation method for removing the aqueous super-thin steel structure fireproof coating of formaldehyde Download PDFInfo
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- CN110003742A CN110003742A CN201910235958.1A CN201910235958A CN110003742A CN 110003742 A CN110003742 A CN 110003742A CN 201910235958 A CN201910235958 A CN 201910235958A CN 110003742 A CN110003742 A CN 110003742A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
- C09D5/185—Intumescent paints
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/61—Additives non-macromolecular inorganic
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
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- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
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- C08K2201/00—Specific properties of additives
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- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The present invention relates to a kind of preparation methods for removing the aqueous super-thin steel structure fireproof coating of formaldehyde, belong to technical field of coatings.The present invention passes through addition diatomite, nano-titanium dioxide, bentonite, it prepares one kind and removes the aqueous thin fire-resistant coating for steel structure of formaldehyde, diatomite is a kind of mineral material of porous structure, stability is strong, porosity is high, the gas pollutant in air can be adsorbed, the formaldehyde in air can effectively be dispelled, nano-titanium dioxide is as photocatalyst on diatomite, inorganic filler is set to have the effect of good purifying formaldehyde, bentonite is the nonmetallic minerals using montmorillonite as main mineral constituent, smectite structure is pressed from both sides the crystal structure that one layer of alumina octahedral forms by two oxygen-octahedrons, with good anti-flammability and high temperature resistance, it can effectively improve the fire resistance of fireproof coating, the comprehensive performances such as thermal insulation.
Description
Technical field
The present invention relates to a kind of preparation methods for removing the aqueous super-thin steel structure fireproof coating of formaldehyde, belong to coating technology neck
Domain.
Background technique
With the continuous propulsion of social urbanization, steel construction is due to its own light weight, excellent in mechanical performance, easy for construction
The advantages that be widely used in the field of construction.In indoor environment the source of formaldehyde be mainly furniture and fabric, it is wooden
Product filler, building source, detergent, makeup are it is characterized in that product and personal belongings etc., wherein mainly artificial board.Formaldehyde pair
Mucocutaneous irritant effect, inhaled formaldehyde can cause head it is characterized in that the symptoms such as dizzy, headache, out of strength, nauseous, when serious
Also result in infertile, fetal anomaly, carcinogenic etc..According to GB/T18883-2002 it is characterized in that " Indoor Air Quality standards ",
Content of formaldehyde Ying≤0.10m0/m3 in air, and formaldehyde content in indoor air is many it is characterized in that beyond country at present
Standard, this brings threat to people's health.
A kind of form of the steel construction as building structure, the high, light weight with its intensity, and have good extensibility, antidetonation
It is characterized in that the features such as property and short construction period, be used widely in construction industry.But since steel construction itself is non-ignitable,
Steel construction is prevented it is characterized in that fire screen Thermal protection problem was once once being ignored by people.It reports and has according to domestic and international relevant information
Test and the statistical number of shutting mechanism are it is characterized in that word shows the fire resistance of steel building compared with masonry structure and reinforced concrete
Soil structure is poor.The mechanical strength of steel with temperature it is characterized in that raising and reduce, at 500 DEG C or so, intensity drops to
40%-50%, the mechanical property of steel, yield point, resistance to compression are it is characterized in that intensity, elasticity modulus and weight bearing power etc.
All decline rapidly, loses enabling capabilities quickly, building is caused to collapse.Therefore, pair it is characterized in that steel construction carries out protection gesture
Must go, fire-resistant coating for steel structure brush or be sprayed on steel structure surface, can play fire-proof and thermal-insulation be used as it is characterized in that, prevent
Steel are brought rapidly up in a fire and reduce intensity, and steel construction is avoided to lose enabling capabilities and building is caused to collapse.
Fire-resistant coating for steel structure is divided into thicker, slim, super-thin steel structure fire-proof paint by thickness；By the solvent used point
It is characterized in that being solvent type, aqueous and powdered fire-resistant coating for steel structure, thin section steel structure fire-resisting paint is compared due to quality
Gently, take up space it is characterized in that it is small, fire protection efficiency is high, has the characteristics that dicoration, obtained in steel construction fire protection wide
General application.However, existing thin it is characterized in that formed steel construction fireproof coating majority is using organic solvent as decentralized medium
Solvent based coating, not only anti-flammability, fire resistance and every it is characterized in that hot property is not good enough, organic volatile burst size is big, to ring
Border is seriously polluted.Currently, the expanding fire-proof paint applied in building fire protection engineering both at home and abroad, can be divided into facing fire retardant coating and
Fire-resistant coating for steel structure two major classes, every one kind have many kinds.Usually say, why fireproof coating can prevent fires, be because
It is at normal temperature common paint film after coating film forming, under flame or high temperature, coating expands charing, forms one than its original
The several ten times larger nonflammable spongiform carbonaceous layer of film thickness.It can completely cut off extraneous fire source to the heat transfer fire retardation of substrate,
Its coating each component issues biology reason, chemical change in flame or high temperature action, absorbs a large amount of thermal energy, counteracts a part
External influence plays retardation to the heated temperature-rise period of protected object body in the thermal energy of object.While coating is at high temperature
It is dehydrated into charcoal reaction and melting covering effect, has completely cut off air, organic matter is made to be converted into charring layer, avoided oxidation heat liberation
Reaction occurs, and coating decomposites non-flammable compressive gas such as ammonia etc. at high temperature, dilutes the concentration of fuel gas and oxygen in air, inhibits
The progress of flame combustion, due to above various effects, coating, which encounters high fire, can prevent the sprawling of flame, slow down flame transmission
Speed, with excellent fire retardant performance.However, needing producing upper different types of fireproof coating using different originals
Material, different process and equipment manufacture.In application aspect, the fireproof coating that can be used for flammable substrate facing cannot generally be applied
In the flameproof protection of steel construction, and the fireproof coating for being used for steel construction may not apply to the flameproof protection of flammable substrate facing.This
Mainly since respective technical performance limits their use scope, often an engineering then needs several fire prevention
Coating distinguishes coating, is just able to satisfy the fire prevention needs of entire engineering.It is multiple to technique is brought in its production and engineering construction in this way
Polygamy needs plurality of devices, increases administration fee, improves cost, be unfavorable for wide popularization and application.In order to find a kind of product
It is multi-purpose, the fireproof coating that the product of solution are applied alone bring more than disadvantage, technical performance that is basic or improving fireproof coating expands
Its big use scope.
But the water super-thin steel structure fire-proof paint of domestic production at present is poor in the prevalence of fire protecting performance.It is existing
Fireproof coating fireproofing mechanism is divided into intumescent and non-expansibility, shows intumescent in actual market and applies its feature of thickness with it
Degree of being is small, and dosage is few, and the advantages such as construction is simple occupy most of market, especially maximum with slim fireproof coating dosage.Market
Upper pin it is characterized in that the slim fireproof coating sold meet fire after expansion multiplying power at 5-15 times or so, so its expansion multiplying power and fire resisting
Time is far from satisfying it is characterized in that actual demand.Intumescent layers multiplying power is low and structural strength is low, water-resistance property of coating
The disadvantages of poor and problem, common fireproof coating can effectively be coated in organic synthesis material, metal material and concrete
Structural material surface, it is characterised in that the effect of decoration is not only played to material, while it is broken to extend deformation when fire occurs
The bad time, be effectively reduced fire it is characterized in that loss.Therefore the market demand of fireproof coating is increasing.Exploitation
A kind of duration of fire resistance is long, viscosity and adhesion strength are high, drying time is relatively long, it is pollution-free, without fire hazard, production cost,
The problem of convenient fireproof coating of production and construction is art technology worker's urgent need to resolve.
Summary of the invention
The technical problems to be solved by the invention: it for using organic solvent as the solvent based coating of decentralized medium, not only hinders
Combustion property, fire resistance and heat-proof quality be not good enough, and organic volatile burst size is big, the serious problem of environmental pollution, provides one kind
Go the preparation method of the aqueous super-thin steel structure fireproof coating of formaldehyde.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
(1) glycerine, magnesium chloride, propandiol butyl ether are added in deionized water, with the stirring of 300 ~ 360r/min revolving speed under room temperature
20 ~ 30min obtains compounding agent solution；
(2) Intumescent Retardant System, inorganic filler are added in compounding agent solution, are placed in high-speed grinder, under room temperature with 1300 ~
1500r/min revolving speed high speed grinding disperses 1 ~ 2h, obtains mixed dispersion liquid；
(3) the compound acrylate and vinyl acetate emulsion of acrylic resin is added in mixed dispersion liquid, is placed in high-speed grinder, with 1500 under room temperature
~ 1600r/min revolving speed 2 ~ 4h of grinding distribution, then it is placed in 20 ~ 30min of ultrasonic disperse in ultrasonic dispersing machine, obtain mixed emulsion；
(4) mixed emulsion is filtered by 80 ~ 100 gauzes, takes filtrate, dimethyl silicone polymer, carboxymethyl cellulose is added, often
40 ~ 60min is stirred with 400 ~ 500r/min revolving speed under temperature, the aqueous super-thin steel structure fireproof coating of formaldehyde must be removed.
The compound acrylate and vinyl acetate emulsion of the acrylic resin, Intumescent Retardant System, inorganic filler, glycerine, poly dimethyl silicon
Oxygen alkane, magnesium chloride, propandiol butyl ether, carboxymethyl cellulose, deionized water parts by weight be 60 ~ 80 parts of acrylic resin Composite vinegars
Acrylic emulsion, 30 ~ 40 parts of Intumescent Retardant Systems, 15 ~ 20 parts of inorganic fillers, 6 ~ 8 parts of glycerine, 3 ~ 4 parts of dimethyl silicone polymers, 3 ~
4 parts of magnesium chlorides, 1 ~ 3 part of propandiol butyl ether, 3 ~ 4 parts of carboxymethyl celluloses, 30 ~ 40 parts of deionized waters.
The power of ultrasonic disperse described in step (3) is 400 ~ 500W
The specific preparation step of inorganic filler described in step (2) are as follows:
(1) bentonite, diatomite and powdered whiting are added in blender, it is mixed with the stirring of 240 ~ 280r/min revolving speed under room temperature
30 ~ 40min is closed, mixture is obtained；
(2) mixture is placed in material grinder, 1 ~ 2h is ground with 120 ~ 160r/min revolving speed under room temperature, obtains mixed-powder；
(3) nano-titanium dioxide is added in mixed-powder, 20 ~ 40min is stirred with 300 ~ 340r/min revolving speed under room temperature,
Obtain inorganic filler.
The nano-titanium dioxide, bentonite, diatomite, powdered whiting parts by weight be 20 ~ 30 parts of nano-silicas
Change titanium, 10 ~ 15 parts of bentonites, 20 ~ 30 parts of diatomite, 2 ~ 3 parts of powdered whitings.
The specific preparation step of Intumescent Retardant System described in step (2) are as follows:
(1) ammonium polyphosphate, urea phosphate, melamine phosphate are placed in blender, with 180 ~ 200r/min revolving speed under room temperature
It is stirred 30 ~ 40min, obtains composite flame-retardant agent；
(2) sorbierite is added in pentaerythrite, 10 ~ 15min is stirred with 120 ~ 160r/min revolving speed under room temperature, must be mixed
Alcohol carbon forming agent；
(3) melamine, ammonium carbonate are placed in blender, 20 are stirred under room temperature with 200 ~ 240r/min revolving speed ~
30min obtains composite foamable agent；
(4) composite flame-retardant agent, mixed alcohol carbon forming agent and composite foamable agent are placed in stirring, are turned under room temperature with 400 ~ 500r/min
Speed is stirred 40 ~ 60min, obtains Intumescent Retardant System.
The ammonium polyphosphate, urea phosphate, melamine phosphate, sorbierite, pentaerythrite, melamine, ammonium carbonate
Parts by weight be 20 ~ 40 parts of ammonium polyphosphate, 10 ~ 20 parts of urea phosphates, 10 ~ 20 parts of melamine phosphates, 10 ~ 20 parts of sorbierites,
20 ~ 40 parts of pentaerythrites, 12 ~ 16 parts of melamines, 6 ~ 8 parts of ammonium carbonates.
The specific preparation step of the compound acrylate and vinyl acetate emulsion of acrylic resin described in step (3) are as follows:
(1) amino resins is added in emulsion acrylic resin, 1 ~ 3h is stirred with 300 ~ 400r/min revolving speed under room temperature, obtains amino
Emulsion acrylic resin；
(2) hydroxyethyl cellulose is added in acrylate and vinyl acetate emulsion, 2 ~ 4h is stirred with 320 ~ 360r/min revolving speed under room temperature, obtains ethoxy
Acrylate and vinyl acetate emulsion；
(3) by ethoxy acrylate and vinyl acetate emulsion be added amino acrylic resin lotion in, be placed in high-shear emulsion machine, under room temperature with
1400 ~ 1500r/min revolving speed stirs 20 ~ 30min, then to 20 ~ 30min of ultrasonic disperse in ultrasonic disperse machine, obtains acrylic resin
The third cream of Composite vinegar.
The emulsion acrylic resin, amino resins, acrylate and vinyl acetate emulsion, hydroxyethyl cellulose parts by weight be 60 ~ 80 parts
Emulsion acrylic resin, 18 ~ 24 parts of amino resins, 30 ~ 40 parts of acrylate and vinyl acetate emulsions, 6 ~ 8 parts of hydroxyethyl celluloses.
The power of ultrasonic disperse described in step (3) is 300 ~ 400W.
The present invention is compared with other methods, and advantageous effects are:
(1) present invention prepares one kind and goes the aqueous thin steel construction of formaldehyde anti-using acrylic resin compounding acrylate and vinyl acetate emulsion as base-material lotion
Fiery coating, acrylic resin are that fireproof coating made of base-material is non-ignitable and safe, the low solvent using water as diluent and cleaning agent
Discharge meets environmental requirement, and quick-drying, the minimum time interval that applies again is short, and the maximum time interval that applies again is unlimited, has good cold-resistant
Property and protect light colour retention, adhesive force is strong, and coating, which meets fire, has the advantages that foaming effect is good, charring layer quality is high, smoke amount is few, by
Amino resins with acrylic resin is aqueous is blended, complicated cross-linked structure is formed after solidification by-CH2-NH-, there is this knot
The polymer limit oxygen index value of structure is high therefore fire retardant and has certain self-extinguishment, significantly improves the fire prevention of fireproof coating
Flame retardant property, acrylic emulsion and acrylate and vinyl acetate emulsion all have good film forming, acrylic emulsion are compounded with acrylate and vinyl acetate emulsion, energy
Increase the continuous phase in coating, accelerate the film forming procedure of lotion, fireproof coating can be effectively attached to steel structure surface, improves
The expansion character and fire protecting performance of fireproof coating, acrylic emulsion has good potential resistance to electrolyte contamination ability, with Intumescent Retardant System
Gel will not be generated after mixing, thickening shows, the stability of fireproof coating can be improved, and after compounding with acrylate and vinyl acetate emulsion, two
Molecule in kind lotion can be entangled, forms network structure, coating can be made to have between steel at high temperature good viscous
Intensity is closed, the fire resistance and anti-flammability of coating are improved, hydroxyethyl cellulose is added in acrylate and vinyl acetate emulsion, in hydroxyethyl cellulose
Hydroxyl group can make the copolymer in acrylate and vinyl acetate emulsion generate slight crosslinking, and form a degree of cross-linked structure, improve
The mechanical property of glue film, copolymer segment introduce it is a small amount of there is polar functional group, since it is imbued with reactive spy
Point can increase emulsion intercalation method, improve the mechanical property of glue film, two kinds of lotions all have good water-fast, alkaline-resisting and oil resistant
Property, the adhesive force of molecule is strong, flexibility is good, cold and hot storage stability, to the corrosion-free effect of steel, acrylic emulsion and vinegar third
The melting temperature of lotion and the decomposition temperature of Intumescent Retardant System have good matching, and the fully wrapped around foaming agent of energy generates
Gas generates the expanding layer of uniform foam cell and densification, improves the anti-flammability, fire resistance and thermal insulation of fireproof coating；
(2) present invention prepares one kind and goes the aqueous thin steel construction of formaldehyde anti-by addition diatomite, nano-titanium dioxide, bentonite
Fiery coating, diatomite are a kind of mineral materials of porous structure, and stability is strong, porosity is high, can adsorb the gas in air
Pollutant, can effectively dispel the formaldehyde in air, and nano-titanium dioxide is inorganic in making on diatomite as photocatalyst
Filler has the effect of that good purifying formaldehyde, bentonite are the nonmetallic minerals using montmorillonite as main mineral constituent, covers de-
Stone structure is pressed from both sides the crystal structure that one layer of alumina octahedral forms by two oxygen-octahedrons, has good anti-flammability and Nai Gao
Warm nature energy can effectively improve the comprehensive performances such as fire resistance, the thermal insulation of fireproof coating.
Specific embodiment
According to parts by weight, 60 ~ 80 parts of emulsion acrylic resins, 18 ~ 24 parts of amino resins, 30 ~ 40 portions of vinegar are weighed respectively
Acrylic emulsion, 6 ~ 8 parts of hydroxyethyl celluloses amino resins are added in emulsion acrylic resin, with 300 ~ 400r/min under room temperature
Revolving speed stirs 1 ~ 3h, obtains amino acrylic resin lotion, and hydroxyethyl cellulose is added in acrylate and vinyl acetate emulsion, under room temperature with 320 ~
360r/min revolving speed stirs 2 ~ 4h, obtains ethoxy acrylate and vinyl acetate emulsion, and amino acrylic resin lotion is added in ethoxy acrylate and vinyl acetate emulsion
In, it is placed in high-shear emulsion machine, 20 ~ 30min is stirred with 1400 ~ 1500r/min revolving speed under room temperature, then to ultrasonic disperse machine
Interior, 20 ~ 30min of ultrasonic disperse under conditions of 300 ~ 400W obtains the compound acrylate and vinyl acetate emulsion of acrylic resin, according to parts by weight,
Respectively weigh 20 ~ 40 parts of ammonium polyphosphate, 10 ~ 20 parts of urea phosphates, 10 ~ 20 parts of melamine phosphates, 10 ~ 20 parts of sorbierites, 20 ~
40 parts of pentaerythrites, 12 ~ 16 parts of melamines, 6 ~ 8 parts of ammonium carbonates, ammonium polyphosphate, urea phosphate, melamine phosphate are placed in
In blender, 30 ~ 40min is stirred with 180 ~ 200r/min revolving speed under room temperature, obtains composite flame-retardant agent, season is added in sorbierite
In penta tetrol, 10 ~ 15min is stirred with 120 ~ 160r/min revolving speed under room temperature, obtains mixed alcohol carbon forming agent, by melamine,
Ammonium carbonate is placed in blender, is stirred 20 ~ 30min under room temperature with 200 ~ 240r/min revolving speed, is obtained composite foamable agent, will be answered
It closes fire retardant, mixed alcohol carbon forming agent and composite foamable agent to be placed in stirring, be stirred under room temperature with 400 ~ 500r/min revolving speed
40 ~ 60min obtains Intumescent Retardant System, then according to parts by weight, respectively weigh 20 ~ 30 parts of nano-titanium dioxides, 10 ~ 15 parts it is swollen
Moisten soil, 20 ~ 30 parts of diatomite, 2 ~ 3 parts of powdered whitings, bentonite, diatomite and powdered whiting is added in blender, often
30 ~ 40min is stirred with 240 ~ 280r/min revolving speed under temperature, obtains mixture, mixture is placed in material grinder, under room temperature with
120 ~ 160r/min revolving speed grinds 1 ~ 2h, obtains mixed-powder, and nano-titanium dioxide is added in mixed-powder, under room temperature with 300 ~
340r/min revolving speed is stirred 20 ~ 40min, obtains inorganic filler, then according to parts by weight, weighs 60 ~ 80 parts of acrylic acid respectively
Resin compounded acrylate and vinyl acetate emulsion, 30 ~ 40 parts of Intumescent Retardant Systems, 15 ~ 20 parts of inorganic fillers, 6 ~ 8 parts of glycerine, 3 ~ 4 parts of poly- diformazans
Radical siloxane, 3 ~ 4 parts of magnesium chlorides, 1 ~ 3 part of propandiol butyl ether, 3 ~ 4 parts of carboxymethyl celluloses, 30 ~ 40 parts of deionized waters, by the third three
Alcohol, magnesium chloride, propandiol butyl ether are added in deionized water, stir 20 ~ 30min under room temperature with 300 ~ 360r/min revolving speed, must help
Intumescent Retardant System, inorganic filler are added in compounding agent solution, are placed in high-speed grinder by agent solution, under room temperature with 1300 ~
1500r/min revolving speed high speed grinding disperses 1 ~ 2h, obtains mixed dispersion liquid, and mixing point is added in the compound acrylate and vinyl acetate emulsion of acrylic resin
It in dispersion liquid, is placed in high-speed grinder, with 1500 ~ 1600r/min revolving speed 2 ~ 4h of grinding distribution under room temperature, then is placed in ultrasonic wavelength-division
It dissipates in machine, 20 ~ 30min of ultrasonic disperse, obtains mixed emulsion under conditions of 400 ~ 500W, and mixed emulsion is passed through 80 ~ 100 gauzes
Filtering takes filtrate, and dimethyl silicone polymer, carboxymethyl cellulose is added, is stirred under room temperature with 400 ~ 500r/min revolving speed
40 ~ 60min must remove the aqueous super-thin steel structure fireproof coating of formaldehyde.
According to parts by weight, 60 parts of emulsion acrylic resins, 18 parts of amino resins, 30 parts of acrylate and vinyl acetate emulsions, 6 parts are weighed respectively
Amino resins is added in emulsion acrylic resin hydroxyethyl cellulose, stirs 1h under room temperature with 300r/min revolving speed, obtains amino
Hydroxyethyl cellulose is added in acrylate and vinyl acetate emulsion emulsion acrylic resin, stirs 2h under room temperature with 320r/min revolving speed, obtains hydroxyl second
Ethoxy acrylate and vinyl acetate emulsion is added in amino acrylic resin lotion, is placed in high-shear emulsion machine, under room temperature by base acrylate and vinyl acetate emulsion
20min is stirred with 1400r/min revolving speed, then in ultrasonic disperse machine, ultrasonic disperse 20min, obtains propylene under conditions of 300W
The compound acrylate and vinyl acetate emulsion of acid resin weighs 20 parts of ammonium polyphosphate, 10 parts of urea phosphates, 10 parts of tricresyl phosphates according to parts by weight respectively
Poly cyanamid, 10 parts of sorbierites, 20 parts of pentaerythrites, 12 parts of melamines, 6 parts of ammonium carbonates, by ammonium polyphosphate, urea phosphate, phosphorus
Sour melamine is placed in blender, is stirred 30min under room temperature with 180r/min revolving speed, is obtained composite flame-retardant agent, by sorb
Alcohol be added pentaerythrite in, 10min is stirred with 120r/min revolving speed under room temperature, obtains mixed alcohol carbon forming agent, by melamine,
Ammonium carbonate is placed in blender, is stirred 20min under room temperature with 200r/min revolving speed, is obtained composite foamable agent, by composite flame-proof
Agent, mixed alcohol carbon forming agent and composite foamable agent are placed in stirring, are stirred 40min under room temperature with 400r/min revolving speed, are obtained swollen
Swollen flame-retardant system, then according to parts by weight, 20 parts of nano-titanium dioxides, 10 parts of bentonites, 20 parts of diatomite, 2 parts are weighed respectively
Bentonite, diatomite and powdered whiting are added in blender powdered whiting, mixed with the stirring of 240r/min revolving speed under room temperature
30min is closed, mixture is obtained, mixture is placed in material grinder, 1h is ground with 120r/min revolving speed under room temperature, obtains mixed-powder,
Nano-titanium dioxide is added in mixed-powder, 20min is stirred with 300r/min revolving speed under room temperature, obtains inorganic filler, then
According to parts by weight, weigh respectively the compound acrylate and vinyl acetate emulsion of 60 parts of acrylic resins, 30 parts of Intumescent Retardant Systems, 15 parts inorganic fill out
Material, 6 parts of glycerine, 3 parts of dimethyl silicone polymers, 3 parts of magnesium chlorides, 1 part of propandiol butyl ether, 3 parts of carboxymethyl celluloses, 30 parts go
Glycerine, magnesium chloride, propandiol butyl ether are added in deionized water ionized water, with the stirring of 300r/min revolving speed under room temperature
20min obtains compounding agent solution, and Intumescent Retardant System, inorganic filler are added in compounding agent solution, are placed in high-speed grinder, room temperature
Under 1h dispersed with 1300r/min revolving speed high speed grinding, obtain mixed dispersion liquid, mixing be added in the compound acrylate and vinyl acetate emulsion of acrylic resin
It in dispersion liquid, is placed in high-speed grinder, with 1500r/min revolving speed grinding distribution 2h under room temperature, then is placed in ultrasonic dispersing machine
In, ultrasonic disperse 20min, obtains mixed emulsion under conditions of 400W, and mixed emulsion is filtered by 80 gauzes, filtrate is taken, adds
Enter dimethyl silicone polymer, carboxymethyl cellulose, 40min is stirred with 400r/min revolving speed under room temperature, formaldehyde must be gone aqueous
Super-thin steel structure fireproof coating.
According to parts by weight, 70 parts of emulsion acrylic resins, 21 parts of amino resins, 35 parts of acrylate and vinyl acetate emulsions, 7 parts are weighed respectively
Amino resins is added in emulsion acrylic resin hydroxyethyl cellulose, stirs 2h under room temperature with 350r/min revolving speed, obtains amino
Hydroxyethyl cellulose is added in acrylate and vinyl acetate emulsion emulsion acrylic resin, stirs 3h under room temperature with 340r/min revolving speed, obtains hydroxyl second
Ethoxy acrylate and vinyl acetate emulsion is added in amino acrylic resin lotion, is placed in high-shear emulsion machine, under room temperature by base acrylate and vinyl acetate emulsion
25min is stirred with 1450r/min revolving speed, then in ultrasonic disperse machine, ultrasonic disperse 25min, obtains propylene under conditions of 350W
The compound acrylate and vinyl acetate emulsion of acid resin weighs 30 parts of ammonium polyphosphate, 15 parts of urea phosphates, 15 parts of tricresyl phosphates according to parts by weight respectively
Poly cyanamid, 15 parts of sorbierites, 30 parts of pentaerythrites, 14 parts of melamines, 7 parts of ammonium carbonates, by ammonium polyphosphate, urea phosphate, phosphorus
Sour melamine is placed in blender, is stirred 35min under room temperature with 190r/min revolving speed, is obtained composite flame-retardant agent, by sorb
Alcohol be added pentaerythrite in, 13min is stirred with 140r/min revolving speed under room temperature, obtains mixed alcohol carbon forming agent, by melamine,
Ammonium carbonate is placed in blender, is stirred 25min under room temperature with 220r/min revolving speed, is obtained composite foamable agent, by composite flame-proof
Agent, mixed alcohol carbon forming agent and composite foamable agent are placed in stirring, are stirred 50min under room temperature with 450r/min revolving speed, are obtained swollen
Swollen flame-retardant system, then according to parts by weight, 25 parts of nano-titanium dioxides, 13 parts of bentonites, 25 parts of diatomite, 2.5 are weighed respectively
Part powdered whiting, bentonite, diatomite and powdered whiting are added in blender, with the stirring of 260r/min revolving speed under room temperature
35min is mixed, mixture is obtained, mixture is placed in material grinder, 1.5h is ground with 140r/min revolving speed under room temperature, obtains mixed powder
Nano-titanium dioxide is added in mixed-powder, is stirred 30min under room temperature with 320r/min revolving speed, obtains inorganic filler by end,
Again according to parts by weight, weigh respectively the compound acrylate and vinyl acetate emulsion of 70 parts of acrylic resins, 35 parts of Intumescent Retardant Systems, 17 parts inorganic fill out
Material, 7 parts of glycerine, 3.5 parts of dimethyl silicone polymers, 3.5 parts of magnesium chlorides, 2 parts of propandiol butyl ethers, 3.5 parts of carboxymethyl celluloses,
Glycerine, magnesium chloride, propandiol butyl ether are added in deionized water, are stirred under room temperature with 330r/min revolving speed by 35 parts of deionized waters
25min is mixed, compounding agent solution is obtained, Intumescent Retardant System, inorganic filler are added in compounding agent solution, are placed in high-speed grinder, often
1.5h is dispersed with 1400r/min revolving speed high speed grinding under temperature, obtains mixed dispersion liquid, the compound acrylate and vinyl acetate emulsion of acrylic resin is added
It in mixed dispersion liquid, is placed in high-speed grinder, with 1550r/min revolving speed grinding distribution 3h under room temperature, then is placed in ultrasonic wavelength-division
It dissipates in machine, ultrasonic disperse 25min, obtains mixed emulsion under conditions of 450W, and mixed emulsion is filtered by 90 gauzes, takes filter
Dimethyl silicone polymer, carboxymethyl cellulose is added in liquid, is stirred 50min with 450r/min revolving speed under room temperature, must remove formaldehyde
Aqueous ultra-thin fire-resistant coating for steel structure.
According to parts by weight, 80 parts of emulsion acrylic resins, 24 parts of amino resins, 40 parts of acrylate and vinyl acetate emulsions, 8 parts are weighed respectively
Amino resins is added in emulsion acrylic resin hydroxyethyl cellulose, stirs 3h under room temperature with 400r/min revolving speed, obtains amino
Hydroxyethyl cellulose is added in acrylate and vinyl acetate emulsion emulsion acrylic resin, stirs 4h under room temperature with 360r/min revolving speed, obtains hydroxyl second
Ethoxy acrylate and vinyl acetate emulsion is added in amino acrylic resin lotion, is placed in high-shear emulsion machine, under room temperature by base acrylate and vinyl acetate emulsion
30min is stirred with 1500r/min revolving speed, then in ultrasonic disperse machine, ultrasonic disperse 30min, obtains propylene under conditions of 400W
The compound acrylate and vinyl acetate emulsion of acid resin weighs 40 parts of ammonium polyphosphate, 20 parts of urea phosphates, 20 parts of tricresyl phosphates according to parts by weight respectively
Poly cyanamid, 20 parts of sorbierites, 40 parts of pentaerythrites, 16 parts of melamines, 8 parts of ammonium carbonates, by ammonium polyphosphate, urea phosphate, phosphorus
Sour melamine is placed in blender, is stirred 40min under room temperature with 200r/min revolving speed, is obtained composite flame-retardant agent, by sorb
Alcohol be added pentaerythrite in, 15min is stirred with 160r/min revolving speed under room temperature, obtains mixed alcohol carbon forming agent, by melamine,
Ammonium carbonate is placed in blender, is stirred 30min under room temperature with 240r/min revolving speed, is obtained composite foamable agent, by composite flame-proof
Agent, mixed alcohol carbon forming agent and composite foamable agent are placed in stirring, are stirred 60min under room temperature with 500r/min revolving speed, are obtained swollen
Swollen flame-retardant system, then according to parts by weight, 30 parts of nano-titanium dioxides, 15 parts of bentonites, 30 parts of diatomite, 3 parts are weighed respectively
Bentonite, diatomite and powdered whiting are added in blender powdered whiting, mixed with the stirring of 280r/min revolving speed under room temperature
40min is closed, mixture is obtained, mixture is placed in material grinder, 2h is ground with 160r/min revolving speed under room temperature, obtains mixed-powder,
Nano-titanium dioxide is added in mixed-powder, 40min is stirred with 340r/min revolving speed under room temperature, obtains inorganic filler, then
According to parts by weight, weigh respectively the compound acrylate and vinyl acetate emulsion of 80 parts of acrylic resins, 40 parts of Intumescent Retardant Systems, 20 parts inorganic fill out
Material, 8 parts of glycerine, 4 parts of dimethyl silicone polymers, 4 parts of magnesium chlorides, 3 parts of propandiol butyl ethers, 4 parts of carboxymethyl celluloses, 40 parts go
Glycerine, magnesium chloride, propandiol butyl ether are added in deionized water ionized water, with the stirring of 360r/min revolving speed under room temperature
30min obtains compounding agent solution, and Intumescent Retardant System, inorganic filler are added in compounding agent solution, are placed in high-speed grinder, room temperature
Under 2h dispersed with 1500r/min revolving speed high speed grinding, obtain mixed dispersion liquid, mixing be added in the compound acrylate and vinyl acetate emulsion of acrylic resin
It in dispersion liquid, is placed in high-speed grinder, with 1600r/min revolving speed 2 ~ 4h of grinding distribution under room temperature, then is placed in ultrasonic wave dispersion
In machine, ultrasonic disperse 30min, obtains mixed emulsion under conditions of 500W, and mixed emulsion is filtered by 100 gauzes, takes filtrate,
Dimethyl silicone polymer, carboxymethyl cellulose is added, 60min is stirred with 500r/min revolving speed under room temperature, formalin must be removed
Property super-thin steel structure fireproof coating.
The aqueous super-thin steel structure fireproof coating of formaldehyde prepared by the present invention is detected, specific testing result is as follows:
Performance test:
By 1-3 of the embodiment of the present invention prepare go the aqueous super-thin steel structure fireproof coating of formaldehyde carry out spraying shape it is characterized in that at
Coating (thickness be respectively 3.1mm, 3.2mm, 5.3mm) 3-35 DEG C of temperature, relative humidity be 50- it is characterized in that 80%
Under conditions of conserve 55 days after, according to GB14907-2002 carry out fire resistance test, testing result difference it is as shown in table 1.
Table 1 goes the aqueous super-thin steel structure Properties of Fire-Proofing Coatings characterization of formaldehyde
Prepared by the present invention as shown in Table 1 to remove the aqueous super-thin steel structure fireproof coating of formaldehyde, expansion multiplying power is high, and fire resistance period is long,
Adhesion strength is high, not easily to fall off, and formaldehyde removal rate is high, and excellent combination property has broad application prospects.
Claims (10)
1. a kind of preparation method for removing the aqueous super-thin steel structure fireproof coating of formaldehyde, it is characterised in that in specific preparation step are as follows:
(1) glycerine, magnesium chloride, propandiol butyl ether are added in deionized water, with the stirring of 300 ~ 360r/min revolving speed under room temperature
20 ~ 30min obtains compounding agent solution；
(2) Intumescent Retardant System, inorganic filler are added in compounding agent solution, are placed in high-speed grinder, under room temperature with 1300 ~
1500r/min revolving speed high speed grinding disperses 1 ~ 2h, obtains mixed dispersion liquid；
(3) the compound acrylate and vinyl acetate emulsion of acrylic resin is added in mixed dispersion liquid, is placed in high-speed grinder, with 1500 under room temperature
~ 1600r/min revolving speed 2 ~ 4h of grinding distribution, then it is placed in 20 ~ 30min of ultrasonic disperse in ultrasonic dispersing machine, obtain mixed emulsion；
(4) mixed emulsion is filtered by 80 ~ 100 gauzes, takes filtrate, dimethyl silicone polymer, carboxymethyl cellulose is added, often
40 ~ 60min is stirred with 400 ~ 500r/min revolving speed under temperature, the aqueous super-thin steel structure fireproof coating of formaldehyde must be removed.
2. a kind of preparation method for removing the aqueous super-thin steel structure fireproof coating of formaldehyde according to claim 1, feature exist
Yu Yu, the compound acrylate and vinyl acetate emulsion of the acrylic resin, Intumescent Retardant System, inorganic filler, glycerine, polydimethylsiloxanes
Alkane, magnesium chloride, propandiol butyl ether, carboxymethyl cellulose, deionized water parts by weight be 60 ~ 80 parts of acrylic resin Composite vinegars third
Lotion, 30 ~ 40 parts of Intumescent Retardant Systems, 15 ~ 20 parts of inorganic fillers, 6 ~ 8 parts of glycerine, 3 ~ 4 parts of dimethyl silicone polymers, 3 ~ 4
Part magnesium chloride, 1 ~ 3 part of propandiol butyl ether, 3 ~ 4 parts of carboxymethyl celluloses, 30 ~ 40 parts of deionized waters.
3. a kind of preparation method for removing the aqueous super-thin steel structure fireproof coating of formaldehyde according to claim 1, feature exist
Yu Yu, the power of ultrasonic disperse described in step (3) are 400 ~ 500W.
4. a kind of preparation method for removing the aqueous super-thin steel structure fireproof coating of formaldehyde according to claim 1, feature exist
Yu Yu, the specific preparation step of inorganic filler described in step (2) are as follows:
(1) bentonite, diatomite and powdered whiting are added in blender, it is mixed with the stirring of 240 ~ 280r/min revolving speed under room temperature
30 ~ 40min is closed, mixture is obtained；
(2) mixture is placed in material grinder, 1 ~ 2h is ground with 120 ~ 160r/min revolving speed under room temperature, obtains mixed-powder；
(3) nano-titanium dioxide is added in mixed-powder, 20 ~ 40min is stirred with 300 ~ 340r/min revolving speed under room temperature,
Obtain inorganic filler.
5. a kind of preparation method for removing the aqueous super-thin steel structure fireproof coating of formaldehyde according to claim 4, feature exist
Yu Yu, the nano-titanium dioxide, bentonite, diatomite, powdered whiting parts by weight be 20 ~ 30 parts of nanometer titanium dioxides
Titanium, 10 ~ 15 parts of bentonites, 20 ~ 30 parts of diatomite, 2 ~ 3 parts of powdered whitings.
6. a kind of preparation method for removing the aqueous super-thin steel structure fireproof coating of formaldehyde according to claim 1, feature exist
Yu Yu, the specific preparation step of Intumescent Retardant System described in step (2) are as follows:
(1) ammonium polyphosphate, urea phosphate, melamine phosphate are placed in blender, with 180 ~ 200r/min revolving speed under room temperature
It is stirred 30 ~ 40min, obtains composite flame-retardant agent；
(2) sorbierite is added in pentaerythrite, 10 ~ 15min is stirred with 120 ~ 160r/min revolving speed under room temperature, must be mixed
Alcohol carbon forming agent；
(3) melamine, ammonium carbonate are placed in blender, 20 are stirred under room temperature with 200 ~ 240r/min revolving speed ~
30min obtains composite foamable agent；
(4) composite flame-retardant agent, mixed alcohol carbon forming agent and composite foamable agent are placed in stirring, are turned under room temperature with 400 ~ 500r/min
Speed is stirred 40 ~ 60min, obtains Intumescent Retardant System.
7. a kind of preparation method for removing the aqueous super-thin steel structure fireproof coating of formaldehyde according to claim 6, feature exist
In the weight of the ammonium polyphosphate, urea phosphate, melamine phosphate, sorbierite, pentaerythrite, melamine, ammonium carbonate
Part is 20 ~ 40 parts of ammonium polyphosphate, 10 ~ 20 parts of urea phosphates, 10 ~ 20 parts of melamine phosphates, 10 ~ 20 parts of sorbierites, 20 ~ 40 parts
Pentaerythrite, 12 ~ 16 parts of melamines, 6 ~ 8 parts of ammonium carbonates.
8. a kind of preparation method for removing the aqueous super-thin steel structure fireproof coating of formaldehyde according to claim 1, feature exist
In the specific preparation step of the compound acrylate and vinyl acetate emulsion of acrylic resin described in step (3) are as follows:
(1) amino resins is added in emulsion acrylic resin, 1 ~ 3h is stirred with 300 ~ 400r/min revolving speed under room temperature, obtains amino
Emulsion acrylic resin；
(2) hydroxyethyl cellulose is added in acrylate and vinyl acetate emulsion, 2 ~ 4h is stirred with 320 ~ 360r/min revolving speed under room temperature, obtains ethoxy
Acrylate and vinyl acetate emulsion；
(3) by ethoxy acrylate and vinyl acetate emulsion be added amino acrylic resin lotion in, be placed in high-shear emulsion machine, under room temperature with
1400 ~ 1500r/min revolving speed stirs 20 ~ 30min, then to 20 ~ 30min of ultrasonic disperse in ultrasonic disperse machine, obtains acrylic resin
The third cream of Composite vinegar.
9. a kind of preparation method for removing the aqueous super-thin steel structure fireproof coating of formaldehyde according to claim 8, feature exist
In the parts by weight of, the emulsion acrylic resin, amino resins, acrylate and vinyl acetate emulsion, hydroxyethyl cellulose be 60 ~ 80 parts of acrylic acid
Resin emulsion, 18 ~ 24 parts of amino resins, 30 ~ 40 parts of acrylate and vinyl acetate emulsions, 6 ~ 8 parts of hydroxyethyl celluloses.
10. a kind of preparation method for removing the aqueous super-thin steel structure fireproof coating of formaldehyde according to claim 8, feature exist
In the power of ultrasonic disperse described in step (3) is 300 ~ 400W.
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| CN102040790A (en) * | 2009-08-18 | 2011-05-04 | 中国科学院成都有机化学有限公司 | Fireproof polyvinyl acetate emulsion and preparation method thereof |
| CN101659823A (en) * | 2009-09-27 | 2010-03-03 | 中国科学技术大学 | Expanded type fireproof coating and preparation method thereof |
| CN104481103A (en) * | 2014-11-18 | 2015-04-01 | 上海华峰普恩聚氨酯有限公司 | Rigid foam polyurethane fireproof, insulation and decorative plate and production method thereof |
| CN106010084A (en) * | 2015-09-06 | 2016-10-12 | 洛阳新巨能高热技术有限公司 | Preparation method of novel steel structure fireproof paint |
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Application publication date: 20190712 |