CN103709871A - Water-based thermal insulating nano-coating and preparation method thereof - Google Patents
Water-based thermal insulating nano-coating and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a water-based thermal insulating nano-coating, which is characterized by being composed of the following components by mass percent: 10-20% of tap water, 45-55% of water-based acrylic emulsion, 10-15% of a high-refractive index pigment, 3-5% of a filler, 2-15% of a thermal insulation material, 0.1-0.3% of a wetting agent, 0.5-1.5% of a dispersant A, 0.1-0.2% of a flatting agent, 1-2% of an antifreezing agent, 0.1-0.3% of a defoamer, 1-3% of a coalescing agent, 0.2-0.6% of a thickening agent, 0.05-0.2% of a mildew resistant antibacterial agent and 1-10% of a water-based nano slurry. The water-based thermal insulating nano-coating has the beneficial effects that the coating layer is low in thickness, good in adhesion, high in shock strength and excellent in combination properties, the sunlight reflectivity and hemispherical emissivity of the nano-coating are high and the thermal insulation property of the nano-coating is excellent, the nano-coating is simple and easy to apply and can be directly sprayed, and compared with a solvent type coating, the VOC (Volatile Organic Compound) content of the water-based nano-coating is greatly reduced and the water-based thermal insulating nano-coating has extremely high environmental protection performance.
Description
Technical field
The present invention relates to a kind of nano water-borne heat-insulating coating and preparation method thereof, belong to thermal insulating coating technical field.
Background technology
Along with social fast development, people more and more recognize energy and environment will become the problem of restriction Future Social Development, therefore, how to reduce energy consumption, reduce environmental pollution and become urgent problem.In developed country, building energy consumption accounts for 30%～40% left and right conventionally in social total energy consumption, Er Jiu China, the data of announcing according to Minstry of Housing and Urban-Rural Development of People Republic of China (MOHURD), the annual 2000000000 newly-increased m in the whole nation
2in floor area of building, 80% belongs to high energy consumption building, existing 43,000,000,000 m
2in floor area of building, the ratio of high energy consumption building is more up to 95%; And compare with the country of equal weather condition, the unit surface Energy in use of China's house class building will exceed 2～3 times.Along with China's economic construction is fast-developing, building energy consumption presents the trend of increase year after year.Therefore the potentiality of building energy conservation are very huge.And thermal insulating coating is an important method of saving building energy.
Thermal insulating coating can be divided three classes according to heat insulation mechanism: isolation-type, reflection-type and radial pattern.Isolation-type paint mainly adopts the filler with low thermal conductivity characteristic, and applying at present maximum is hollow glass or ceramic fine bead.And reflection type thermal insulation coating is mainly by improving the object that the reflectivity of visible ray and near-infrared band sunlight is reached to cooling.Radiation Heat-insulated Paint is that radiation mode is gone out the energy emission absorbing and play heat-blocking action in addition, and what use often is transition metal or nonmetal oxide, as zirconium white, aluminum oxide, ferric oxide etc.The super-refinement of ir radiation filler, nanometer are a kind of means that improve its emittance.And nanoparticle is because particle diameter is little, specific surface area large, surface can be high, cause nanoparticle very easily to be reunited, be difficult to directly apply in coating.
Summary of the invention
The deficiency that the present invention exists in order to overcome prior art, provides a kind of nano water-borne heat-insulating coating and preparation method thereof.
The present invention can be by taking following technical scheme to be achieved:
A nano water-borne heat-insulating coating, described nano water-borne heat-insulating coating is composed as follows by mass percentage: tap water 10～20%, aqueous acrylic emulsion 45～55%, high refractive index pigment 10～15%, filler 3～5%, lagging material 2～15%, wetting agent 0.1～0.3%, dispersant A 0.5～1.5%, flow agent 0.1～0.2%, frostproofer 1～2%, defoamer 0.1～0.3%, film coalescence aid 1～3%, thickening material 0.2～0.6%, antimildew disinfectant 0.05～0.2%, waterborne nano slurry 1～10%.
On the basis of the above, waterborne nano slurry of the present invention is composed as follows by mass percentage: nano titanium oxide/nano zircite 10～30%, tap water 60～80%, dispersant B 1～15%, wetting agent 0.1～0.3%, defoamer 0.1～0.3%, anti-settling agent 0.1～0.3%.
Anti-settling agent of the present invention is wilkinite or aerosil.
Dispersant B of the present invention is one of anionic macromolecule dispersing agent, non-ionic type macromolecule dispersing agent, inorganic dispersant or multiple being mixed, it act as principles such as utilizing electrostatic interaction, sterically hindered effect, by nanoparticulate dispersed in water, form be uniformly dispersed, stable system.Wherein anionic macromolecule dispersing agent comprises ammonium polyacrylate salt, polyacrylic acid sodium salt, polycarboxylate sodium etc., as Disperbyk191, Disperbyk192, the Orotan731A of U.S. Rhom and Hass, the Hydropalat3275 of Shenzhen Hai Chuan Chemical Co., Ltd. etc. of German BYK chemical company.Non-ionic type macromolecule dispersing agent comprises polyoxyethylene, polyvalent alcohol etc., as 2774 of German Clariant company, PTS etc.Inorganic dispersant refers to Sodium hexametaphosphate 99.
Aqueous acrylic emulsion of the present invention is that water-based pure acrylic acid acid polymerized emulsion, water-based Styrene And Chloroalkyl Acrylates copolymer emulsion are or/and waterborne organic silicon-acrylate copolymer emulsion; the RS-998A that Industrial Co., Ltd. as rich in Shunde Ahmedabad produces be a kind of be the polymkeric substance that a kind of phenylethylene ethylene/propenoic acid ester copolymerization forms; have that particle is tiny, the feature of modest viscosity; tough and tensile and the high resilience of glued membrane; water tolerance, scrubbing resistance and alkali resistance are good, not containing protective colloid.RS-998A emulsion applications, in the filmogen of coating, has higher bearing capacity to color stuffing, has good weathering resistance, good sticking power and snappiness; The RS-996KD of the rich Industrial Co., Ltd. of Ahmedabad is a kind of organosilicon-acrylic acid copolymer emulsion of soap-free polymerization, there is lower film-forming temperature, glued membrane is fine and close, tough and tensile, gloss, hardness are high, antipollution, strong with substrate adhesion, cohesive strength is high, chemical-resistant, have excellent weather resistance, not xanthochromia.
High refractive index pigment of the present invention is rutile titanium dioxide, select rutile titanium dioxide as high refractive index pigment to be because the refractive index of rutile titanium dioxide up to 2.8, reflected sunlight effectively.Moreover, rutile titanium dioxide also has the advantages such as good chemical stability, weathering resistance.
Dispersant A of the present invention is one of block macromolecular multipolymer, polyvalent carboxylic acid's salt base polymer, synthetic polymer base polymer or multiple mixing; Block macromolecular multipolymer wherein, as Solsperse12000, the Solsperse20000 of Disperbyk180, the Disperbyk181 of the Hydropalat3275 of Shenzhen Hai Chuan Chemical Co., Ltd., Hydropalat1080, German BYK chemical company, Disperbyk184, Disperbyk190, Disperbyk191, Britain Avecia company, Solsperse27000 etc.; Polyvalent carboxylic acid's salt base polymer, as the Orotan731A of the SN-5027 of Shenzhen Hai Chuan Chemical Co., Ltd., SN-5034, SN-5040, U.S. Rhom and Hass; Synthetic polymer base polymer is as the Hydropalat3204 of Shenzhen Hai Chuan Chemical Co., Ltd., Hydropalat759, Hydropalat100, DP512, the DP518 of Taiwan De Qian company, Orotan1124, the Orotan1288 etc. of U.S. Rhom and Hass.
Lagging material of the present invention is that hollow glass micropearl is or/and hollow ceramic microspheres, hollow glass micropearl is a kind of tiny airtight hollow ball, add the independent heat insultating cavity that can make the many microcosmic of coating formation in coating to, thereby greatly improved coating to heat insulation, played significant heat-blocking action.Meanwhile, hollow glass micropearl also has acid and alkali-resistance, radioprotective, fire-retardant, insulation, oil absorbency is low, nontoxic and filling ratio is high and the feature such as good fluidity.The product S38 of Ru3M company, S60, IM30K etc., dispersion flows is good, granularity is moderate, hardness is high, can be used in Water-based thermal insulation coating.The main component of ceramic hollow microballon color stuffing is TiO2, SiO2 and Al2O2, and what outward appearance was standard is spherical, loose, and good fluidity, has hard shell at hollow.Because ceramic hollow microballon color stuffing is that face is filled out integrated material, its particle diameter is little, is equivalent to the fineness of common coating, thereby can directly add coating system in the mode of filler, makes filming of paint solidification formation have heat-reflecting heat-insulating performance.Color stuffing surface, after ceramic special processing, is very easy to be scattered in water-based and oily material system.
Filler of the present invention is that sericite, barium sulfate are or/and kaolin.
Film coalescence aid of the present invention is wherein a kind of of alcohol ester 12, propylene glycol monomethyl ether, propylene glycol phenylate.
Thickening material of the present invention is that association type polyurethanes thickening material is or/and Mierocrystalline cellulose.
Other auxiliary agents of the present invention as film coalescence aid, flow agent, defoamer etc. be water-borne coatings produce in conventional auxiliary agent.
A preparation method for nano water-borne heat-insulating coating, comprises the following steps:
(1) under 400～500r/min rotating speed agitation condition, according to the total mass per-cent of nano water-borne heat-insulating coating, in container, add tap water 10～20%, wetting agent 0.1～0.3%, dispersant A 0.5～1.5%, flow agent 0.1～0.2%, frostproofer 1～2%, defoamer 0.05～0.15% successively, stir after 5～10min, add again high refractive index pigment 10～15%, filler 3～5%, then at rotating speed, be under 2000～3000r/min, high speed dispersion 20～30min, until fineness reaches below 40 μ m, obtain pigment slurry;
(2) under 800～1000r/min rotating speed agitation condition, in pigment slurry, add waterborne nano slurry 1～10%, stir 5～10min, then add lagging material 2～15%, stir 15～20min; Rotating speed is reduced to 400～500r/min, add defoamer 0.05～0.15%, stir 5～10min, add again aqueous acrylic emulsion 45～55% to stir 10min, then add successively antimildew disinfectant 0.05～0.2%, film coalescence aid 1～3% and thickening material 0.2～0.6%, after stirring, obtain nano water-borne heat-insulating coating.
On the basis of the above, the preparation process of the waterborne nano slurry in step of the present invention (2) is as follows: under 400～500r/min rotating speed agitation condition, according to the total mass per-cent of waterborne nano slurry successively to adding tap water 60～80%, dispersant B 1～15%, wetting agent in container: 0.1～0.3%, defoamer: 0.1～0.3%, anti-settling agent: 0.1～0.3% and nano titanium oxide/nano zircite: 10～30%, then under 3000～6000r/min rotating speed, stir 0.5～1 hour, more ultrasonic dispersion 10～15min obtains waterborne nano slurry.
Compared with prior art, the invention has the beneficial effects as follows: (1) coat-thickness is less, and sticking power is good, and resistance to impact shock is large, and over-all properties is good; (2) sunlight reflectivity and hemispherical emissivity are all higher, and heat-proof quality is good; (3) construct simple, can direct spraying; (4) compare with solvent based coating, VOC content reduces greatly, and the feature of environmental protection is extremely strong.
Embodiment
Embodiment 1
A nano water-borne heat-insulating coating, described nano water-borne heat-insulating coating is composed as follows by mass percentage: tap water 20%, aqueous acrylic emulsion 55%, high refractive index pigment 10%, filler 3%, lagging material 7.95%, wetting agent 0.1%, dispersant A 0.5%, flow agent 0.1%, frostproofer 1%, defoamer 0.1%, film coalescence aid 1%, thickening material 0.2%, antimildew disinfectant 0.05%, waterborne nano slurry 1%.Wherein, described waterborne nano slurry is composed as follows by mass percentage: nano titanium oxide 30%, tap water 60%, dispersant B 9.7%, wetting agent 0.1%, defoamer 0.1%, anti-settling agent 0.1%; Described anti-settling agent is wilkinite; Described dispersant B is anionic macromolecule dispersing agent.Described aqueous acrylic emulsion is water-based pure acrylic acid acid polymerized emulsion; Described high refractive index pigment is rutile titanium dioxide; Described dispersant A be block macromolecular multipolymer; Described lagging material is hollow glass micropearl; Described filler is sericite; Film coalescence aid of the present invention is alcohol ester 12.Its preparation method is as follows:
(1) under 400r/min rotating speed agitation condition, according to the total mass per-cent of waterborne nano slurry successively to adding tap water 60%, dispersant B 9.7%, wetting agent in container: 0.1%, defoamer: 0.1%, anti-settling agent: 0.1% and nano titanium oxide: 30%, then under 3000r/min rotating speed, stir 0.5 hour, more ultrasonic dispersion 10～15min obtains waterborne nano slurry
(2) under 400r/min rotating speed agitation condition, according to the total mass per-cent of nano water-borne heat-insulating coating, in container, add tap water 20%, wetting agent 0.1%, dispersant A 0.5%, flow agent 0.1%, frostproofer 1%, defoamer 0.05% successively, stir after 5min, add again high refractive index pigment 10%, filler 3%, then at rotating speed, be under 2000r/min, high speed dispersion 20min, until fineness reaches below 40 μ m, obtains pigment slurry;
(3) under 800r/min rotating speed agitation condition, in pigment slurry, add waterborne nano slurry 1%, stir 5min, then add lagging material 7.95%, stir 15min; Rotating speed is reduced to 400r/min, add defoamer 0.05%, stir 5min, then add aqueous acrylic emulsion 55% to stir 10min, then add successively antimildew disinfectant 0.05%, film coalescence aid 1% and thickening material 0.2%, after stirring, obtain nano water-borne heat-insulating coating.
Embodiment 2
A nano water-borne heat-insulating coating, described nano water-borne heat-insulating coating is composed as follows by mass percentage: tap water 13%, aqueous acrylic emulsion 50%, high refractive index pigment 11%, filler 3.5%, lagging material 15%, wetting agent 0.15%, dispersant A 0.8%, flow agent 0.15%, frostproofer 1.2%, defoamer 0.2%, film coalescence aid 1.5%, thickening material 0.4%, antimildew disinfectant 0.1%, waterborne nano slurry 3%.Wherein, described waterborne nano slurry is composed as follows by mass percentage: nano zircite 14.55%, tap water 70%, dispersant B 15%, wetting agent 0.15%, defoamer 0.15%, anti-settling agent 0.15%; Described anti-settling agent is aerosil; Described dispersant B is non-ionic type macromolecule dispersing agent; Described aqueous acrylic emulsion is water-based Styrene And Chloroalkyl Acrylates copolymer emulsion; Described high refractive index pigment is rutile titanium dioxide; Described dispersant A is polyvalent carboxylic acid's salt base polymer; Described lagging material is hollow ceramic microspheres; Described filler is barium sulfate; Described film coalescence aid is propylene glycol monomethyl ether.Its preparation method is as follows:
(1) under 500r/min rotating speed agitation condition, according to the total mass per-cent of waterborne nano slurry successively to adding tap water 70%, dispersant B 15%, wetting agent in container: 0.15%, defoamer: 0.15%, anti-settling agent: 0.15% and nano zircite: 14.55%, then under 6000r/min rotating speed, stir 1 hour, more ultrasonic dispersion 15min obtains waterborne nano slurry
(2) under 500r/min rotating speed agitation condition, according to the total mass per-cent of nano water-borne heat-insulating coating, in container, add tap water 13%, wetting agent 0.15%, dispersant A 0.8%, flow agent 0.15%, frostproofer 1.2%, defoamer 0.1% successively, stir after 10min, add again high refractive index pigment 11%, filler 3.5%, then at rotating speed, be under 3000r/min, high speed dispersion 30min, until fineness reaches below 40 μ m, obtains pigment slurry;
(3) under 1000r/min rotating speed agitation condition, in pigment slurry, add waterborne nano slurry 3%, stir 10min, then add lagging material 15%, stir 20min; Rotating speed is reduced to 500r/min, add defoamer 0.1%, stir 10min, then add aqueous acrylic emulsion 50% to stir 10min, then add successively antimildew disinfectant 0.1%, film coalescence aid 1.5% and thickening material 0.4%, after stirring, obtain nano water-borne heat-insulating coating.
Embodiment 3
A nano water-borne heat-insulating coating, described nano water-borne heat-insulating coating is composed as follows by mass percentage: tap water 15%, aqueous acrylic emulsion 53%, high refractive index pigment 12.23%, filler 4%, lagging material 2%, wetting agent 0.2%, dispersant A 1%, flow agent 0.18%, frostproofer 1.5%, defoamer 0.24%, film coalescence aid 2%, thickening material 0.5%, antimildew disinfectant 0.15%, waterborne nano slurry 8%.Wherein, described waterborne nano slurry is composed as follows by mass percentage: nano titanium oxide 23.4%, tap water 75%, dispersant B 1%, wetting agent 0.2%, defoamer 0.2%, anti-settling agent 0.2%; Described anti-settling agent is wilkinite; Described dispersant B is inorganic dispersant; Described aqueous acrylic emulsion is waterborne organic silicon-acrylate copolymer emulsion; Described high refractive index pigment is rutile titanium dioxide; Described dispersant A is synthetic polymer base polymer; Described lagging material is hollow glass micropearl and hollow ceramic microspheres; Described filler is kaolin; Described film coalescence aid is propylene glycol phenylate.Its preparation method is as follows:
(1) under 450r/min rotating speed agitation condition, according to the total mass per-cent of waterborne nano slurry successively to adding tap water 75%, dispersant B 1%, wetting agent in container: 0.2%, defoamer: 0.2%, anti-settling agent: 0.2% and nano titanium oxide: 23.4%, then under 4000r/min rotating speed, stir 0.6 hour, more ultrasonic dispersion 12min obtains waterborne nano slurry
(2) under 450r/min rotating speed agitation condition, according to the total mass per-cent of nano water-borne heat-insulating coating, in container, add tap water 15%, wetting agent 0.2%, dispersant A 1%, flow agent 0.18%, frostproofer 1.5%, defoamer 0.12% successively, stir after 6min, add again high refractive index pigment 12.23%, filler 4%, then at rotating speed, be under 2500r/min, high speed dispersion 25min, until fineness reaches below 40 μ m, obtains pigment slurry;
(3) under 900r/min rotating speed agitation condition, in pigment slurry, add waterborne nano slurry 8%, stir 6min, then add lagging material 2%, stir 16min; Rotating speed is reduced to 450r/min, add defoamer 0.12%, stir 6min, then add aqueous acrylic emulsion 53% to stir 10min, then add successively antimildew disinfectant 0.15%, film coalescence aid 2% and thickening material 0.5%, after stirring, obtain nano water-borne heat-insulating coating.
Embodiment 4
A nano water-borne heat-insulating coating, described nano water-borne heat-insulating coating is composed as follows by mass percentage: tap water 10%, aqueous acrylic emulsion 45%, high refractive index pigment 15%, filler 5%, lagging material 6.9%, wetting agent 0.3%, dispersant A 1.5%, flow agent 0.2%, frostproofer 2%, defoamer 0.3%, film coalescence aid 3%, thickening material 0.6%, antimildew disinfectant 0.2%, waterborne nano slurry 10%.Wherein, described waterborne nano slurry is composed as follows by mass percentage: nano zircite 10%, tap water 80%, dispersant B 9.1%, wetting agent 0.3%, defoamer 0.3%, anti-settling agent 0.3%; Described anti-settling agent is aerosil; Described dispersant B is that anionic macromolecule dispersing agent, non-ionic type macromolecule dispersing agent, the multiple of inorganic dispersant are mixed; Described aqueous acrylic emulsion is the mixed solution of water-based pure acrylic acid acid polymerized emulsion and water-based Styrene And Chloroalkyl Acrylates copolymer emulsion; Described high refractive index pigment is rutile titanium dioxide; Described dispersant A is the mixing of block macromolecular multipolymer, polyvalent carboxylic acid's salt base polymer, synthetic polymer base polymer; Described lagging material is hollow glass micropearl and hollow ceramic microspheres; Described filler is sericite, barium sulfate and kaolin; Described film coalescence aid is alcohol ester 12.Its preparation method is as follows:
(1) under 480r/min rotating speed agitation condition, according to the total mass per-cent of waterborne nano slurry successively to adding tap water 80%, dispersant B 9.1%, wetting agent in container: 0.3%, defoamer: 0.3%, anti-settling agent: 0.3% and nano zircite: 10%, then under 5000r/min rotating speed, stir 0.8 hour, more ultrasonic dispersion 13min obtains waterborne nano slurry
(2) under 480r/min rotating speed agitation condition, according to the total mass per-cent of nano water-borne heat-insulating coating, in container, add tap water 10%, wetting agent 0.3%, dispersant A 1.5%, flow agent 0.2%, frostproofer 2%, defoamer 0.15% successively, stir after 8min, add again high refractive index pigment 15%, filler 5%, then at rotating speed, be under 2800r/min, high speed dispersion 28min, until fineness reaches below 40 μ m, obtains pigment slurry;
(3) under 950r/min rotating speed agitation condition, in pigment slurry, add waterborne nano slurry 10%, stir 7min, then add lagging material 6.9%, stir 17min; Rotating speed is reduced to 450r/min, add defoamer 0.15%, stir 8min, then add aqueous acrylic emulsion 45% to stir 10min, then add successively antimildew disinfectant 0.2%, film coalescence aid 3% and thickening material 0.6%, after stirring, obtain nano water-borne heat-insulating coating.
Only as described above, only for the present invention's preferred embodiment, certainly can not limit with this scope of the invention process, the content of generally recording according to the claims in the present invention and description of the invention has been done simple equivalence and has been changed and modify, and is all still covered by the claims of the invention.In addition, summary part and title are only the use for auxiliary patent document search, are not used for limiting the present invention's interest field.
Claims (10)
1. a nano water-borne heat-insulating coating, is characterized in that: described nano water-borne heat-insulating coating is composed as follows by mass percentage: tap water 10～20%, aqueous acrylic emulsion 45～55%, high refractive index pigment 10～15%, filler 3～5%, lagging material 2～15%, wetting agent 0.1～0.3%, dispersant A 0.5～1.5%, flow agent 0.1～0.2%, frostproofer 1～2%, defoamer 0.1～0.3%, film coalescence aid 1～3%, thickening material 0.2～0.6%, antimildew disinfectant 0.05～0.2%, waterborne nano slurry 1～10%.
2. nano water-borne heat-insulating coating according to claim 1, is characterized in that: described waterborne nano slurry is composed as follows by mass percentage: nano titanium oxide/nano zircite 10～30%, tap water 60～80%, dispersant B 1～15%, wetting agent 0.1～0.3%, defoamer 0.1～0.3%, anti-settling agent 0.1～0.3%.
3. nano water-borne heat-insulating coating according to claim 2, is characterized in that: described anti-settling agent is wilkinite or aerosil.
4. nano water-borne heat-insulating coating according to claim 2, is characterized in that: described dispersant B is one of anionic macromolecule dispersing agent, non-ionic type macromolecule dispersing agent, inorganic dispersant or multiple being mixed.
5. according to the nano water-borne heat-insulating coating described in any one in claim 1 to 4, it is characterized in that: described aqueous acrylic emulsion is that water-based pure acrylic acid acid polymerized emulsion, water-based Styrene And Chloroalkyl Acrylates copolymer emulsion are or/and waterborne organic silicon-acrylate copolymer emulsion; Described high refractive index pigment is rutile titanium dioxide; Described dispersant A is one of block macromolecular multipolymer, polyvalent carboxylic acid's salt base polymer, synthetic polymer base polymer or multiple mixing; Described lagging material is that hollow glass micropearl is or/and hollow ceramic microspheres.
6. according to the nano water-borne heat-insulating coating described in any one in claim 1 to 4, it is characterized in that: described filler is that sericite, barium sulfate are or/and kaolin.
7. according to the nano water-borne heat-insulating coating described in any one in claim 1 to 4, it is characterized in that, described film coalescence aid is wherein a kind of of alcohol ester 12, propylene glycol monomethyl ether, propylene glycol phenylate.
8. according to the nano water-borne heat-insulating coating described in any one in claim 1 to 4, it is characterized in that: described thickening material is that association type polyurethanes thickening material is or/and Mierocrystalline cellulose.
9. a preparation method for nano water-borne heat-insulating coating, is characterized in that, comprises the following steps:
(1) under 400～500r/min rotating speed agitation condition, according to the total mass per-cent of nano water-borne heat-insulating coating, in container, add tap water 10～20%, wetting agent 0.1～0.3%, dispersant A 0.5～1.5%, flow agent 0.1～0.2%, frostproofer 1～2%, defoamer 0.05～0.15% successively, stir after 5～10min, add again high refractive index pigment 10～15%, filler 3～5%, then at rotating speed, be under 2000～3000r/min, high speed dispersion 20～30min, until fineness reaches below 40 μ m, obtain pigment slurry;
(2) under 800～1000r/min rotating speed agitation condition, in pigment slurry, add waterborne nano slurry 1～10%, stir 5～10min, then add lagging material 2～15%, stir 15～20min; Rotating speed is reduced to 400～500r/min, add defoamer 0.05～0.15%, stir 5～10min, add again aqueous acrylic emulsion 45～55% to stir 10min, then add successively antimildew disinfectant 0.05～0.2%, film coalescence aid 1～3% and thickening material 0.2～0.6%, after stirring, obtain nano water-borne heat-insulating coating.
10. the preparation method of nano water-borne heat-insulating coating according to claim 9, it is characterized in that: the preparation process of the waterborne nano slurry in described step (2) is as follows: under 400～500r/min rotating speed agitation condition, according to the total mass per-cent of waterborne nano slurry, in container, add tap water 60～80% successively, dispersant B 1～15%, wetting agent: 0.1～0.3%, defoamer: 0.1～0.3%, anti-settling agent: 0.1～0.3% and nano titanium oxide/nano zircite: 10～30%, then under 3000～6000r/min rotating speed, stir 0.5～1 hour, ultrasonic dispersion 10～15min obtains waterborne nano slurry again.
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| CN109233487A (en) * | 2018-07-18 | 2019-01-18 | 安徽诺辰新型材料有限公司 | High-temperature resistant nano Ceramic Composite coating |
| CN109337477A (en) * | 2018-10-12 | 2019-02-15 | 江苏润广环保科技有限公司 | A kind of aqueous high temperature insulating heat insulation coating |
| CN109786493A (en) * | 2019-01-03 | 2019-05-21 | 景德镇陶瓷大学 | A kind of high adhesion force ceramics and glass-reflected coating paste and its preparation method and application |
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