CN106752526A - A kind of aqueous light reflection industrial heat preservation coating and preparation method thereof - Google Patents

A kind of aqueous light reflection industrial heat preservation coating and preparation method thereof Download PDF

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Publication number
CN106752526A
CN106752526A CN201611204659.4A CN201611204659A CN106752526A CN 106752526 A CN106752526 A CN 106752526A CN 201611204659 A CN201611204659 A CN 201611204659A CN 106752526 A CN106752526 A CN 106752526A
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emulsion
slurry
coating
thermal insulation
nano
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CN106752526B (en
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董仕晋
刘歌
庞帅
魏峰
王瑛
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Shenyang Research Institute of Chemical Industry Co Ltd
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Shenyang Research Institute of Chemical Industry Co Ltd
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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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    • 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
    • C09D127/00—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 a halogen; Coating compositions based on derivatives of such polymers
    • C09D127/02—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D127/12—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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    • 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
    • C09D133/04—Homopolymers or copolymers of esters
    • C09D133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
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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
    • C09D5/004—Reflecting paints; Signal paints
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    • 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
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
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    • 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
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
    • C09D5/084—Inorganic compounds
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    • 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
    • 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
    • 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
    • C09D7/63—Additives non-macromolecular organic
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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
    • C09D7/40—Additives
    • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • 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

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Abstract

The present invention relates to industrial coating, a kind of aqueous industrial thermal insulation coatings with light reflective insulation and anticorrosion ability and preparation method thereof.Coating is by weight percentage, 25%~50% macromolecule emulsion, 5%~30% light reflection filler, 1%~5% Nano filling, 5%~10% thermal insulating filling, 5%~10% anticorrosive packing, 5%~8% common fillers, 0%~10% curing agent, 1%~5% dispersant, 0.1%~4% coalescents, 0.1%~2% thickener, 0%~1% defoamer, 0.01%~0.5%PH conditioning agents, 0.1%~2% wetting agent, 0.5% 1% antifreezing agents, balance of deionized water.Coating of the present invention has sunshine reflection, heat rejection and etch-proof effect simultaneously, can be used for the fields such as storage tank, pipeline, outdoor equipment, container, with safety non-toxic, environmental protection, free of contamination feature, the coating has good weatherability, stain resistance, salt fog resistance, abrasion resistance in addition.

Description

A kind of aqueous light reflection industrial heat preservation coating and preparation method thereof
Technical field
The present invention relates to industrial coating, a kind of aqueous industrial thermal insulation coatings with light reflective insulation and anticorrosion ability and Its preparation method.
Background technology
Coating as the most frequently used finishing material, from purposes such as simple protection, decorations gradually to application field more Wide feature direction is developed.Traditional industrial coating is typically mainly used in storage tank, pipeline, container, outdoor equipment, holds Refitting put wait steel construction material surface, play a part of anticorrosion and decorate.Since 13 " reduction three waste discharge ", " raising essential safety ", " saving energy consumption " turn into current industrial circle key subjects urgently to be resolved hurrily and the focus words for receiving much concern Topic.The multi-functional industrial coating in one such as development set heat-insulation and heat-preservation, anti-corrosion, automatically cleaning, UV resistant will have warp very high Ji value.
Storage tank is the main construction object of industrial coating, and because it is leaked under the sun in summer cruelly for a long time, hot environment is led Reservoir surface and internal temperature is caused quickly to raise, wherein most heat concentrates on oil interface top layer, accelerates the evaporation of oil product, Oil product " small breathing " is caused to be lost and superpressure danger.
The method of traditional cooling has using methods such as thermal insulation layer, Water spray coolings.Above two method has certain Limitation, is mainly using application thermal insulation coatings to realize in recent years for the heat insulation and heat control of storage tank.Aluminium paint is to put into earliest The insulating moulding coating product for using, aluminium paint film has bright and clean mirror effect, can reflect most of sunshine, and price is just Preferably, as the product that producers are first-selected within a period of time.Corrosion resistance and weatherability yet with aluminium paint is poor, often Just effect is lost, it is necessary to brush again after brushing 1 year.The inconvenience and application effect that construction is caused repeatedly are undesirable so that should Class product is gradually eliminated.Solvent type light reflection compound coating system turns into the substitute of aluminium paint, and the product has cooling Effect is good, and the advantages of good weatherability, but its price is costly, and constructs complex, it is necessary to the layer material of application six altogether, applies The work duration is more long, and working security is poor.The raising for coating material environmental requirement and China's industrial coating with China The main trend of Water-borne modification, solvent based product will gradually be eliminated in following market.
Chinese patent 201210510347.1 discloses a kind of storage tank corrosion-resistant thermal insulation heat reflection coatings, while giving system Preparation Method, the coating has 85% high reflection efficiency to sunshine, and with stronger salt fog resistance.But it use big The organic solvent of amount does not possess environment-friendly speciality as carrier.One kind is disclosed in Chinese patent 200510028388.7 The preparation method of solar reflection coating for building, the formula using pure third resin and titanium dioxide, barium sulfate, kaolinite stone flour, Sepiolite etc. is primary raw material, and the coating reflectivity of preparation reaches 90%.Chinese patent 201410336222.0 provides one kind The preparation method of infrared energy-conserving paint, using alumina powder, jakobsite powder, ferropicotite powder, vanadic anhydride etc. Raw material as functional stuffing, the coating of the high infrared radiation ability of preparation, at room temperature all-wave length integrated emissivity reach 0.95, The common drawback of above-mentioned two reflective coating is that only have infrared light reflection and radianting capacity, is imitated without possessing to intercept heat transfer Really, the scope of application is narrower.Chinese patent 200810021667.4 discloses a kind of aquosity elastic heat preserving insulating paint, it is noted that can Application on storage tank and pipeline, but it does not provide anticorrosion and weathering data.Therefore, exploitation one kind have concurrently it is heat-insulated and Anticorrosion ability, and construction safety, convenient aqueous light reflection industrial energy saving coating has great importance.
The content of the invention
Industry is reflected present invention aim at a kind of environment-friendly aqueous light for having heat-insulated and anticorrosion ability concurrently is provided Thermal insulation coatings and preparation method thereof.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of aqueous industrial thermal insulation coatings, by weight percentage, 25%~50% macromolecule emulsion, 5%~30% light Reflection filler, 1%~5% Nano filling, 5%~10% thermal insulating filling, 5%~10% anticorrosive packing, 5%~8% are commonly filled out Material, 0%~10% curing agent, 1%~5% dispersant, 0.1%~4% coalescents, 0.1%~2% thickener, 0%~ 1% defoamer, 0.01%~0.5%PH conditioning agents, 0.1%~2% wetting agent, 0.5%-1% antifreezing agents, balance of deionization Water.
The macromolecule emulsion is polyacrylate emulsion, acrylicstyrene copolymer emulsion, fluorine carbon emulsion, polyurethane breast One kind or several in liquid, ethene-vinyl acetate copolymer emulsion, organic polysiloxane emulsion, hydroxyl acrylic emulsion, epoxy emulsion Kind；
Wherein, organic polysiloxane emulsion is the copolymer emulsion of the various siloxanes with highly cross-linked network structure, Construction unit mainly includes methyl trichlorosilane, dimethyldichlorosilane, phenyl trichlorosilane, dichloromethyl phenylsilane.
Hydroxyl acrylic emulsion is the monomers such as acrylic acid, methyl methacrylate, hydroxy-ethyl acrylate, hydroxypropyl acrylate Copolymer.
Fluorine carbon emulsion is the emulsion of Fluorine containing olefine or Fluorine containing olefine and other monomer copolymerizations.Can be divided into poly- four by monomer composition PVF fluorine carbon emulsion, polyvinylidene fluoride emulsion and CTFE-vinyl ethers copolymer emulsion.
Described light reflection filler is in titanium dioxide, zirconium oxide, magnesia, zinc oxide, alundum (Al2O3), aluminium powder Plant or several；
The Nano filling is one or more in nano silicon, nano antimony tin oxide, nano-indium stannum oxide；
The thermal insulating filling be airsetting rubber powder, hollow microsphere, ceramic microsphere, sepiolite, closed-cell expanded perlite, vermiculite, One or more in potassium silicate whisker；Wherein, hollow microsphere is in hollow glass micro-ball, hollow corundum microballoon, hollow float bead One or more；
The common fillers are two or more the mixing in powdered whiting, kaolin, mica powder；
The anticorrosive packing is one or more in zinc powder, iron oxide, trbasic zinc phosphate, barium sulfate, Graphene；
The curing agent is isocyanates or polyamine；Wherein, polyamine is that polyamine includes aliphatic polyamine or virtue Fragrant race is polynary；Aliphatic polyamine is including ethylenediamine, diethylenetriamines, etc. diamines；Aromatic polyamine 4,4 '-dimethyl Diphenyl-methane, m-phenylene diamine (MPD) etc..
The dispersant is non-ionic dispersing agent；
The coalescents are alcohol ester -12, butyl glycol ether, propane diols phenylate, propandiol butyl ether, the methyl isophthalic acid of 2- amino -2 One or more in propyl alcohol；
The thickener is one or more of polyurethane, polyacrylate, polyvinyl alcohol, cellulose；
The defoamer is that crude mineral oils, polysiloxanes, dimethyl silicone polymer or Silicone-Polyester copolymer are water-soluble Liquid；
Described PH conditioning agents are ammoniacal liquor and/or 5% sodium hydrate aqueous solution.
The wetting agent is sodium hexametaphosphate solution and/or polyoxyethanyl nonyl phenol；
The antifreezing agent is ethylene glycol and/or propane diols.
In mentioned component, preferred macromolecule emulsion be polyacrylate emulsion, acrylicstyrene copolymer emulsion, ethene- One or more in vinyl acetate copolymer emulsion, polyaminoester emulsion, fluorine carbon emulsion, hydroxyl acrylic emulsion；
Preferred light reflection filler is one or more in titanium dioxide, zinc oxide, alundum (Al2O3)；Further preferably Be the one kind in zinc oxide and alundum (Al2O3).
Preferred thermal insulating filling is one or more in airsetting rubber powder, hollow microsphere, ceramic microsphere；
Preferred non-ionic dispersing agent is polyethylene glycol, PEO, PPOX, polyvinyl alcohol, epoxy second The double block polymers of alkane-expoxy propane, epoxy ethane-epoxy propane-oxirane triblock polymer, PEO-poly- Two or more material mixing in acrylate block polymer.
Rutile phase content is not less than 99% in described titanium dioxide, and 6.5~8.5, particle diameter is 200 to water slurry pH ~300nm；
The particle diameter of nano silicon is 100~300nm in described Nano filling；It is nano antimony tin oxide, nano oxidized The particle diameter of indium tin is 50~200nm；
Described airsetting rubber powder thermal conductivity factor is 0.015~0.025w/ (mk), and density is in 100~300kg/m3, compare table Area is 150~500m2/ g, particle diameter is 1~10 μm；
Hollow glass micro-ball density is 0.1~0.3g/cm3, compression strength is not less than 20MPa, and particle diameter is 10~70 μm.
Hollow corundum microballoon main component α-Al2O399% is not less than, its particle diameter is 0.7~3 μm, wall thickness is 0.1~0.3 μ m。
Ceramic microsphere compression strength is no less than 400MPa, and density is in 2~2.6g/cm3, average grain diameter is 3-5 microns.
Floating bead density is 0.3~0.5g/cm3, particle diameter is 80~120 μm.
Described mica powder is sericite；Particle diameter is 10~20 μm；
Described Graphene is Graphene prepared by oxidation-reduction method, and the number of plies is 5~20 layers；
Described zinc powder is the flake zinc powder of 200 mesh, and iron oxide is the micaceous iron oxide of 500 mesh；Barium sulfate is 1200 Purpose blanc fixe.
Fibrous alpha-crystal form is no less than 90% in sepiolite, and density is 2.5~3g/cm3。
The particle diameter of expanded perlite is 10~30 μm, and cubical expansivity is 5~20 times.
Powdered whiting particle diameter is 3~10 μm, and barium sulfate particle diameter is 5~10 μm, and kaolin particle diameter is 5~10 μm；
A kind of preparation method of aqueous industrial thermal insulation coatings, comprises the following steps：
(1) slurry mixing：Water, dispersant, antifreezing agent and part are added in coating dispersion tank according to above-mentioned formula metering Defoamer, uniform rear addition light reflection filler to be mixed, thermal insulating filling, anticorrosive packing, common fillers, at 1000-2000 revs/min Disperse 20~40 minutes under clock rotating speed, obtain slurry；
(2) slurry grinding：Above-mentioned energy-conservation slurry is ground using horizontal sand mill, above-mentioned steps (1) are prepared Slurry is by volume 1 with abrasive media:0.8~1.2 ratio mixing, adjustment rotating speed to grinding after 300~5000 revs/min Filtering and discharging after 30~60 minutes；
(3) prepared by aqueous industrial thermal insulation coatings：According to the above ratio by macromolecule emulsion, thickener, coalescents, wetting Agent, PH modifying agent and remaining defoamer are separately added into reactor, and 10~30 points are disperseed under 1000~2000 revs/min of rotating speeds Clock is uniform to system, is slowly added to slurry and curing agent after Nano filling, above-mentioned steps (2) grinding, continues to disperse 10~30 Minute is obtained aqueous industrial thermal insulation coatings.
Advantage for present invention：
The present invention by with rational composite dispersing agent system, appropriate charging order and grinding technics, by it is various not The filler of same polarity and different surfaces proterties effectively merges compounding, ultimately forms the coating system with excellent compatibility. The infrared external reflection filler and large scale of the filler of nanoscale and mesoscale and the anti-corrosion for possessing specific lamellar structure is filled out in system Material is according to the orderly gap for having filled up macromolecular material of rational ratio.Both light reflection function and heat rejection higher had been ensure that Effect, improves the salt spray resistance ability of coating again, while ensure that the powerful toughness of film so that coating of the present invention has concurrently well Insulation and corrosion proof function.Can exempt conventional thermal barrier and anticorrosive paint needs the shortcoming constructed respectively, reduce and apply Work difficulty, improves application efficiency.
And then coating of the present invention is realized being provided simultaneously with insulation and corrosion proof function, can be applied to comprehensively storage tank, pipeline, The objects such as container, outdoor equipment.With extremely low VOCs, sun luminous reflectance higher, near-infrared reflection ratio and hemisphere hair Rate is penetrated, most solar energies can be effectively suppressed during the broiling summer and is absorbed and is played cooling by outside radiant heat energy Effect, additionally, coating of the present invention has good weatherability, stain resistance, abrasion resistance, disclosure satisfy that and protect in a long time The excellent using effect of card.
Specific embodiment
The present invention is described in further details below by specific embodiment.Following embodiments are merely to illustrate this hair It is bright, but the practical range being not intended to limit the present invention, the technical side that all use equivalents or equivalent transformation mode are obtained Case is within the scope of the present invention.
Coating of the present invention has sunshine reflection, heat rejection and etch-proof effect simultaneously, can be used for storage tank, pipeline, family The fields such as external equipment, container, with safety non-toxic, environmental protection, free of contamination feature, the coating has good weather-proof in addition Property, stain resistance, salt fog resistance, abrasion resistance.
The invention also discloses the preparation method of coating, the preparation process is simple, cost are extremely low, product stability is good, easily In realizing industrialized production.
Embodiment 1
The formula composition of aqueous industrial thermal insulation coatings is as shown in the table：
The thermal conductivity factor of airsetting rubber powder is 0.02w/ (mk) wherein in upper table, and density is 240kg/m3, specific surface area is 220m2/ g, particle diameter is 3~8 μm, and the average grain diameter of silica is 150nm, and the average grain diameter of titanium dioxide is 300nm.
The preparation of coating：
(1) slurry mixing：Deionized water, dispersant, antifreezing agent are added in coating dispersion tank according to above-mentioned formula metering With a part of defoamer, uniform rear addition light reflection filler to be mixed, thermal insulating filling, anticorrosive packing and common fillers, 1000 Disperse 30 minutes under rev/min rotating speed, obtain slurry；
(2) slurry grinding：Above-mentioned energy-conservation slurry is ground using horizontal sand mill, above-mentioned steps (1) are prepared Energy-conservation slurry is by volume 1 with abrasive media (zirconium oxide bead)：1.2 ratio mixing, adjustment rotating speed is to after 2000 revs/min Filtering and discharging after grinding 30 minutes；
(3) prepared by aqueous industrial thermal insulation coatings：According to the above ratio by polyacrylate emulsion, thickener, alcohol ester -12, wetting Agent, ammoniacal liquor and remainder defoamer are separately added into reactor, under 1000 revs/min of rotating speeds disperse 30 minutes it is equal to system It is even, Nano filling is slowly added to, the slurry after above-mentioned steps (2) grinding is added, continue to disperse aqueous work to be obtained in 20 minutes Industry thermal insulation coatings.
Embodiment 2
The formula composition of aqueous industrial thermal insulation coatings is as shown in the table：
The particle diameter of tin-antiomony oxide is 70nm wherein in upper table, and the average grain diameter of titanium dioxide is 300nm.
The preparation of coating：
(1) slurry mixing：Water, dispersant, antifreezing agent and one are added in coating dispersion tank according to above-mentioned formula metering Divide defoamer, uniform rear addition light reflection filler to be mixed, anticorrosive packing and common fillers are divided under 1200 revs/min of rotating speeds Dissipate 30 minutes, obtain slurry；
(2) slurry grinding：Above-mentioned energy-conservation slurry is ground using horizontal sand mill, above-mentioned steps (1) are prepared Energy-conservation slurry is by volume 1 with abrasive media：1.1 ratio mixing, adjustment rotating speed to grinding after 2000 revs/min 60 minutes Filtering and discharging afterwards；
(3) prepared by aqueous industrial thermal insulation coatings：According to the above ratio by hydroxyl acrylic emulsion, thickener, alcohol ester -12, profit Humectant, ammoniacal liquor and remainder defoamer are separately added into reactor, are disperseed under 1000 revs/min of rotating speeds 30 minutes to system Uniformly, Nano filling and thermal insulating filling are slowly added to, the slurry after above-mentioned steps (2) grinding is added, continue to disperse 20 minutes Aqueous industrial thermal insulation coatings are obtained.
Embodiment 3
The formula composition of aqueous industrial thermal insulation coatings is as shown in the table：
The thermal conductivity factor of airsetting rubber powder is 0.02w/ (mk) wherein in upper table, and density is 240kg/m3, specific surface area is 220m2/ g, particle diameter is 3~8 μm, and the particle diameter of tin-antiomony oxide is 300nm for the average grain diameter of 70nm titanium dioxide.
The preparation of coating：
(1) prepared by slurry：Water, dispersant, antifreezing agent and one are added in coating dispersion tank according to above-mentioned formula metering Divide defoamer, uniform rear addition light reflection filler to be mixed, thermal insulating filling, anticorrosive packing and common fillers, at 1200 revs/min Disperse 30 minutes under rotating speed, obtain slurry；
(2) slurry grinding：Above-mentioned energy-conservation slurry is ground using horizontal sand mill, above-mentioned steps (1) are prepared Energy-conservation slurry is by volume 1 with abrasive media：1.1 ratio mixing, adjustment rotating speed to grinding after 2000 revs/min 40 minutes Filtering and discharging afterwards；
(3) prepared by aqueous industrial thermal insulation coatings：According to the above ratio by hydroxy acrylic acid, thickener, butyl glycol ether, wetting Agent, ammoniacal liquor and remainder defoamer are separately added into reactor, under 1000 revs/min of rotating speeds disperse 20 minutes it is equal to system It is even, Nano filling is slowly added to, slurry and curing agent after above-mentioned steps (2) grinding are added, continue to disperse to make for 20 minutes Obtain aqueous industrial thermal insulation coatings.
Embodiment 4
The formula composition of aqueous industrial thermal insulation coatings is as shown in the table：
Wherein in upper table the particle diameter of tin indium oxide for 100nm titanium dioxide average grain diameter be 300nm, Graphene it is average The piece number of plies is 7-8 layers.
The preparation of coating：
(1) prepared by slurry：Water, dispersant, antifreezing agent and one are added in coating dispersion tank according to above-mentioned formula metering Divide defoamer, uniform rear addition light reflection filler to be mixed, thermal insulating filling and common fillers are divided under 1200 revs/min of rotating speeds Dissipate 30 minutes, obtain slurry；
(2) slurry grinding：Above-mentioned energy-conservation slurry is ground using horizontal sand mill, above-mentioned steps (1) are prepared Energy-conservation slurry and abrasive media mix for 1: 1.1 ratio by volume, adjustment rotating speed to grinding after 2000 revs/min 40 minutes Filtering and discharging afterwards；
(3) prepared by aqueous industrial thermal insulation coatings：According to the above ratio by hydroxy acrylic acid, thickener, alcohol ester -12, wetting agent, Ammoniacal liquor and remainder defoamer are separately added into reactor, disperse under 1000 revs/min of rotating speeds 20 minutes it is uniform to system, Anticorrosive packing is disperseed using dispersant, and ultrasound is slowly added in system after 30 minutes, is added above-mentioned steps (2) and is ground Slurry and curing agent after mill, continue to disperse aqueous industrial thermal insulation coatings to be obtained in 20 minutes.
Embodiment 5
The formula composition of aqueous industrial thermal insulation coatings is as shown in the table：
The thermal conductivity factor of airsetting rubber powder is 0.02w/ (mk) wherein in upper table, and density is 240kg/m3, specific surface area is 220m2/ g, particle diameter is 3~8 μm, and the average grain diameter of titanium dioxide is 300nm.
The preparation of coating：
(1) prepared by slurry：Water, dispersant, antifreezing agent and one are added in coating dispersion tank according to above-mentioned formula metering Divide defoamer, uniform rear addition light reflection filler to be mixed, thermal insulating filling and common fillers are divided under 1200 revs/min of rotating speeds Dissipate 30 minutes, obtain slurry；
(2) slurry grinding：Above-mentioned energy-conservation slurry is ground using horizontal sand mill, above-mentioned steps (1) are prepared Energy-conservation slurry is by volume 1 with abrasive media：1.1 ratio mixing, adjustment rotating speed to grinding after 2000 revs/min 40 minutes Filtering and discharging afterwards；
(3) prepared by aqueous industrial thermal insulation coatings：According to the above ratio by hydroxy acrylic acid, thickener, alcohol ester -12, wetting agent, Ammoniacal liquor and remainder defoamer are separately added into reactor, disperse under 1000 revs/min of rotating speeds 20 minutes it is uniform to system, Anticorrosive packing is disperseed using dispersant, and ultrasound is slowly added in system after 30 minutes, is added above-mentioned steps (2) and is ground Slurry and curing agent after mill, continue to disperse aqueous industrial thermal insulation coatings to be obtained in 20 minutes.
Comparative example 1 is commercially available aqueous energy-saving industrial coating.
Comparative example 2 is commercial solvents type energy-saving coatings.
Performance test
Above-described embodiment is carried out into application, standard testing model is prepared, coating abrasion resistance, root are tested according to GB/T9266 Stain resistance is tested according to GB/T9780, artificial weathering ageing resistance is tested according to GB/T 9755-1997.According to JC/T 235- 2014 test coating sun luminous reflectances, hemispherical emissivity and the heat-insulated temperature difference.
The aqueous industrial energy-saving coatings test result of table 1
From above-mentioned table 1, embodiment of the present invention Water-based industrial heat-proof coating has higher too in terms of heat insulation and heat control Positive energy reflectivity, infrared emittance and infrared external reflection ratio, can effectively suppress summer coated object temperature and rise, and reduce storage Material volatilization loss, improves the essential safety of storage material, reduces Water spray；This external coating has good weatherability, resistance to is stained with Dirt, abrasion resistance.Embodiment 1-3 has high sun luminous reflectance, infrared external reflection ratio and hemispherical emissivity, corresponding drop Temp effect is extremely excellent.Because with the addition of grapheme material in embodiment 4, albedo of the part for sunshine is sacrificed, But it relies on hemispherical emissivity and infrared external reflection ratio higher, heat-insulating cooling effect is still ideal, and with preferably resistance to Salt fog and resistance to ag(e)ing.The light reflection filler of embodiment 5 only adds titanium dioxide, and preferred zinc oxide is not used, and anticorrosion is filled out Material does not use preferred Graphene and micaceous iron oxide, without the formula of Nano filling.For ultrared reflection, radiation energy Power is slightly inferior to optimization formula.And salt fog resistance and resistance to ag(e)ing are also slightly inferior to optimization formula, but remain above and be all water paint Comparative example 1.
Comparative example 1 does not possess salt fog resistance, and weatherability is poor；Comparative example 2 possesses sun luminous reflectanc, but due to being Solvent based product, VOCs is too high, and easily danger is produced in construction.

Claims (6)

1. a kind of aqueous industrial thermal insulation coatings with light reflective insulation and anticorrosion ability, it is characterised in that：Percentage by weight It is 25%~50% macromolecule emulsion, 5%~30% light reflection filler, 1%~5% Nano filling, 5%~10% heat-insulated than meter Filler, 5%~10% anticorrosive packing, 5%~8% common fillers, 0%~10% curing agent, 1%~5% dispersant, 0.1% ~4% coalescents, 0.1%~2% thickener, 0%~1% defoamer, 0.01%~0.5%PH conditioning agents, 0.1%~ 2% wetting agent, 0.5%-1% antifreezing agents, balance of deionized water.
2. aqueous industrial thermal insulation coatings with light reflective insulation and anticorrosion ability as described in claim 1, its feature exists In：The macromolecule emulsion is polyacrylate emulsion, acrylicstyrene copolymer emulsion, fluorine carbon emulsion, polyaminoester emulsion, second One or more in alkene-acetate copolymer emulsion, organic polysiloxane emulsion, hydroxyl acrylic emulsion, epoxy emulsion；
Described light reflection filler be one kind in titanium dioxide, zirconium oxide, magnesia, zinc oxide, alundum (Al2O3), aluminium powder or It is several；
The Nano filling is one or more in nano silicon, nano antimony tin oxide, nano-indium stannum oxide；
The thermal insulating filling is airsetting rubber powder, hollow microsphere, ceramic microsphere, sepiolite, closed-cell expanded perlite, vermiculite, silicic acid One or more in potassium whisker；
The common fillers are two or more the mixing in powdered whiting, kaolin, mica powder；
The anticorrosive packing is one or more in zinc powder, iron oxide, trbasic zinc phosphate, barium sulfate, Graphene；
The curing agent is isocyanates or polyamine；
The dispersant is non-ionic dispersing agent；
The coalescents are alcohol ester -12, butyl glycol ether, propane diols phenylate, propandiol butyl ether, the methyl isophthalic acid propyl alcohol of 2- amino -2 In one or more；
The thickener is one or more of polyurethane, polyacrylate, polyvinyl alcohol, cellulose；
The defoamer is crude mineral oils, polysiloxanes, dimethyl silicone polymer or Silicone-Polyester aqueous copolymers solution；
Described PH conditioning agents are ammoniacal liquor and/or sodium hydrate aqueous solution；
The wetting agent is sodium hexametaphosphate solution and/or polyoxyethanyl nonyl phenol；
The antifreezing agent is ethylene glycol and/or propane diols.
3. aqueous industrial thermal insulation coatings with light reflective insulation and anticorrosion ability as described in claim 2, its feature exists In：
The macromolecule emulsion be polyacrylate emulsion, acrylicstyrene copolymer emulsion, ethane-acetic acid ethyenyl copolymer emulsion, One or more in polyaminoester emulsion, fluorine carbon emulsion, hydroxyl acrylic emulsion；
Described light reflection filler is one or more in titanium dioxide, zinc oxide, alundum (Al2O3)；
The thermal insulating filling is one or more in airsetting rubber powder, hollow microsphere, ceramic microsphere；
The non-ionic dispersing agent is polyethylene glycol, PEO, PPOX, polyvinyl alcohol, oxirane-epoxy The double block polymers of propane, epoxy ethane-epoxy propane-oxirane triblock polymer, polyethylene oxide-propylene acid fat Two or more material mixing in block polymer.
4. aqueous industrial thermal insulation coatings with light reflective insulation and anticorrosion ability as described in claim 3, its feature exists In：The light reflection filler is titanium dioxide and/or zinc oxide；Anticorrosion filler is Graphene and/or micaceous iron oxide.
5. aqueous industrial thermal insulation coatings with light reflective insulation and anticorrosion ability as described in claim 2,3 or 4, it is special Levy and be：
Rutile phase content is not less than 99% in described titanium dioxide, water slurry pH 6.5~8.5, particle diameter is 200~ 300nm；
The particle diameter of nano silicon is 100~300nm in described Nano filling；Nano antimony tin oxide, nano-indium stannum oxide Particle diameter be 50~200nm；
Described airsetting rubber powder thermal conductivity factor is 0.015~0.025w/ (mk), and density is in 100~300kg/m3, specific surface area It is 150~500m2/ g, particle diameter is 1~10 μm；
Described Graphene is Graphene prepared by oxidation-reduction method, and the number of plies is 5~20 layers.
6. the preparation of a kind of aqueous industrial thermal insulation coatings with light reflective insulation and anticorrosion ability as described in claim 1 Method, it is characterised in that comprise the following steps：
(1) slurry mixing：Water, dispersant, antifreezing agent and part froth breaking are added in coating dispersion tank according to above-mentioned formula metering Agent, uniform rear addition light reflection filler to be mixed, thermal insulating filling, anticorrosive packing, common fillers, turns at 1000-2000 revs/min The lower dispersion of speed 20~40 minutes, obtains slurry；
(2) slurry grinding：Above-mentioned energy-conservation slurry is ground using horizontal sand mill, the slurry that above-mentioned steps (1) are prepared It is by volume 1 with abrasive media:0.8~1.2 ratio mixing, adjustment rotating speed to grinding 30 after 300~5000 revs/min~ Filtering and discharging after 60 minutes；
(3) prepared by aqueous industrial thermal insulation coatings：According to the above ratio by macromolecule emulsion, thickener, coalescents, wetting agent, PH Modifying agent and remaining defoamer are separately added into reactor, and 10~30 minutes are disperseed under 1000~2000 revs/min of rotating speeds extremely System is uniform, is slowly added to slurry and curing agent after Nano filling, above-mentioned steps (2) grinding, continues to disperse 10~30 minutes Aqueous industrial thermal insulation coatings are obtained.
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