CN102311688B - Aqueous transparent heat insulation paint - Google Patents
Aqueous transparent heat insulation paint Download PDFInfo
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- CN102311688B CN102311688B CN 201110209547 CN201110209547A CN102311688B CN 102311688 B CN102311688 B CN 102311688B CN 201110209547 CN201110209547 CN 201110209547 CN 201110209547 A CN201110209547 A CN 201110209547A CN 102311688 B CN102311688 B CN 102311688B
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Abstract
The invention relates to an aqueous transparent heat insulation paint, which contains, by weight, 2.0-5.0 parts of a nanometer ITO compound powder, 37.5-40.5 parts of distilled water, 44-55 parts of a waterborne FEVE fluorocarbon resin emulsion and 7.5-8.5 parts of an HDI curing agent, wherein the grain size range of the ITO compound powder is 20-50nm. The preparation method provided by the invention comprises the following steps of: adding distilled water into a reaction container, adding the nanometer ITO compound powder into distilled water by high speed dispersion for 15-50 minutes until the powder becomes a paste, adding the obtained paste into the FEVE emulsion, followed by middle speed dispersion for 15-50 minutes to obtain an intermediate product, adding the HDT curing agent into the intermediate product with stirring, followed by middle speed dispersion for 15-50 minutes to obtain the product. The product provided by the invention has excellent heat insulation performance and low price, can be used for microwave attenuation and can also be used in fields such as a glass paint for buildings.
Description
Technical field
The present invention relates to the nano paint technical field, more specifically to a kind of water nano transparent heat insulating dope and preparation method thereof.
Background technology
Since twentieth century, world energy consumption increases substantially, and is energy-conservation, reduce energy consumption, increase economic efficiency, and is one of High-Interest Object of scientific research and skill technological development.
In all kinds of energy consumptions, constructure heating and air-conditioning power consumption occupy sizable proportion.Door and window is as in building construction, and transparent and building enclosure that can opening is winter and summer the weakest heat insulation part.
In solving the heat insulation method of winter and summer, some applicating energy-saving glass LOW-E glass claims again low radiation coated glass, and good energy-conserving effect is used a lot.But its producing apparatus is expensive, and energy consumption is higher, and need to make double glazing unit and could keep its energy-saving effect.
And the nano heat-insulating Clear paint to be a kind of glass that can allow namely keep high light transmittance, the material of effect of heat insulation is preferably arranged again simultaneously.
At present, external glass nano transparent heat insulating dope uses popularity rate high, and in the U.S., the popularity rate of building nano transparent insulating coating surpasses 90%.
The popularity rate of state's building glass nano transparent insulating coatings such as Australia, New Zealand is also all more than 75%.At European Region, the popularity rate of glass for building purposes nano transparent insulating coating has also reached more than 80%, and wherein the glass for building purposes nano transparent insulating coating popularity rate of the states such as Holland, Denmark, Switzerland has more surpassed 85%.
At Asia, except Hong-Kong, Taiwan and Japan, Korea S, the building glass transparent heat insulating dope popularity rate of other countries is on average less than 20%.
The popularity rate of the building glass transparent heat insulating dope of China mainland is less than 10%.According to the statistics of the Ministry of Construction and State Bureau of Building Materials Industry, China's public building area is approximately 4,500,000,000 square metres at present, and wherein 99% all belongs to the high energy consumption building.China is carrying out the policy of energy-saving and emission-reduction energetically now, and the material of glass heat-proof Clear paint has a very large development space surely.
Jiangsu, Pekinese successively develop nano-scale oxide as organic transparent heat insulating dope and the Inorganic Transparent Adiabatic Coating of main additive.This coating belongs to the radiation type heat-insulation thermal insulation coatings mostly.Beijing company mixes it mutually with the nano-level conducting oxide compound (ITO) of favorable dispersity, thereby is developed into transparent thermal insulation coating take the molten transparent resin of inorganic alkoxide as film forming matter.Transparent thermal insulation coating reaches 75% to the transmitance of visible light, can reach 72% to ultrared rejection rate.The glass transparent heat insulating dope of profit and science and technology research and development is that a kind of viscosity of blueness is less, water-borne coatings take water as solvent (viscosity＜100pa.s), its constructional method is very simple, adopt the method for showering to apply, but about surface drying after 15min at ambient temperature after coating, but this coating contains methyl alcohol and heavy metal, and is harmful.
Chinese patent literature application number 200910189363.3 discloses a kind of aqueous transparent glass heat-insulating coating and preparation method thereof.This coating comprises component and mass parts content is as follows: nano-titanium antimony composite oxides dispersion liquid 10-12 part, film forming matter 25-35, dispersion agent 0.5-0.6 part, wetting aid 0.1-0.2 part, aerosil 2-3 part, adhesion promoter 1-2 part, defoamer 0.3-0.5 part, sanitas 0.1-02 part, deionized water 50-60 part
Chinese patent literature application number 200910098088.4 discloses water-borne heat-insulating self-cleaning nona coating and the method for making thereof that is used for glass, and described coating forms and weight part is:
Macromolecule resin 45-55,
Nano ATO slurry 5-15,
Linking agent 0.1-1,
Uv-absorbing agent 0.1-1,
Ethanol 5-10,
Said uv-absorbing agent is UV329.
Chinese patent literature application number 200910109856.1 discloses a kind of building glass thermal insulating coating capable of releasing negative ion that contains inorganic heat insulation nano material water paste and preparation method thereof.
This coating comprises the component of following weight parts:
Inorganic heat insulation nano material water paste 20-50,
Anion powder material water paste 5-20,
Water-base resin 40-80,
Auxiliary agent 0.5-10,
Thinner 20-40.
The optional autoxidation indium of said inorganic heat insulation nano material tin, tin-antiomony oxide ... gallium arsenide, gallium phosphide ... Deng.Its particle size range is between the 50-200 nanometer, more preferably between the 50-100 nanometer.
Said anion powder material can be selected from tourmalinite, opal, seabed ore, synthetic anion-generating material, the mixture of one or more in the bamboo carbon fibre material.
Water-base resin can be selected from water-borne acrylic resin, waterborne polyurethane resin ... one or more mixtures in acrylic resin modified by aqueous polyaminoester.
Described auxiliary agent is one or more the mixture in thickening material, flow agent, defoamer, frostproofer, film coalescence aid, wetting agent.
Described thinner is water, alcohol or both mixtures.
The preparation method of building glass thermal insulating coating capable of releasing negative ion is disclosed in the document; The method for making of negative ion water-based coating is also disclosed, but also can be available from market.
Chinese patent literature application number 200810023708.3 discloses a kind of aqueous glass heat insulation paint and method for making thereof.This aqueous glass heat insulation paint, the component that comprises following weight part: synthetic water-base resin 50-80 part, nano indium tin oxide slurry 10-40 part, water 0-5 part, film coalescence aid 0.5-5 part, silicon-dioxide 0.1-3 part, coupling agent 0.1-5 part, defoamer 0.1-2 part, flow agent 0.1-2 part, wetting agent 0.1-2 part, wherein the nano indium tin oxide slurry comprises again the component of following weight percent; In-Sn oxide powder 15-25%, water 35-45%, ethanol 7.5-12%, Virahol 7.5-12.5%, propyl carbinol 7.5-12.5%, 1-Methoxy-2-propyl acetate 7.5-12.5%, dispersion agent 0.075-0.125%, and solid content accounts for the 10-30% of indium tin oxide slurry, and the particle diameter of solid content is between the 20-50 nanometer.
But, Water-based thermal insulation coating described in the prior art, some complicateds, with high costs, some heat-proof qualities and wear resistance are not good enough, easily aging coming off.
Summary of the invention
The object of the invention is to overcome the existing weak point of prior art, develop cost low, have again strong adhesion, ageing-resistant, a kind of water transparent heat insulation paint of the premium propertiess such as waterproof.
Another object of the present invention is to work out the preparation method of the above-mentioned a kind of water transparent heat insulation paint of preparation, makes its method simple process, and is with low cost, easy handling.
A kind of water transparent heat insulation paint of the present invention, contain following component:
Nano-ITO (indium tinoxides) nano indium tin metal oxide composite granule is called for short Nanometer ITO Powder.
Nanometer ITO Powder 1.5-7.0 weight part,
Distilled water 30-45 weight part,
The water-based fluorocarbon resin emulsion is called for short FEVE emulsion 40-60 weight part,
HDI solidifying agent 6-9.5 weight part,
Said weight part can be gram, jin, kilogram, ton etc.
Component ITO is the 1.5-7.0 weight part, again take the 2.0-5.0 weight part as good.
Selected nano-ITO (indium tinoxides) nano indium tin metal oxide, the tin indium oxide oxide composite powder is broad-spectrum functional materials, is commonly called as the ITO powder.ITO is as a kind of N-type semiconductor material, with its good electroconductibility, light transmission and become electron trade indicating meter, teletron anti-electrostatic, radioprotective, abblendbar focus material.The ITO powder is plated to after film transparent, the strong reflection infrared light, and low membrane resistance is arranged, thereby in liquid-crystal display, micro-wave screening, heat-protecting glass, solar cell, the aspects such as vehicle window mist elimination obtain increasingly extensive application.
Chinese patent literature application number 200910098088.4 has been introduced its preparation method.The preparation method of nano-ITO has solvent thermal-calcination method, ion-exchange dechlorination hydrolysis method, Isoamyl Acetate FCC azeotropic distillation drying.Also there is the people indium tin hydroxide to be placed in the autoclave that is full of argon gas, at 300 ℃, produces the nano particle of ITO under the condition of 2MPa.
The adoptable nano-ITO of the present invention is available from Hangzhou ten thousand scape novel material company limiteds, and its technical indicator is:
Index chemical formula In203/SnO2.
Model: VK-SIO2,
Outward appearance: pale yellow powder,
Average simple particle diameter 20-50nm,
Purity: 99.99%,
Density: 7.12-7.16g/cm3
Specific surface area: 300-350m2/g.
Nano-ITO average particulate diameter of the present invention can be 50-100 nm, again take 20-50 nm as good.
The water-based FEVE fluorocarbon resin emulsion (multipolymer of fluoroolefin and alkyl vinyl ether or ester) that the present invention is selected is take trifluorochloroethylene and other functional monomer as raw material, uses two component cold cross-linking polymkeric substance of emulsion synthetic technology preparation.Active function groups carbonyl in this fluoropolymer emulsions forms evenly with hydrazides class generation curing cross-linking reaction, transparent coating, and this fluorine carbon emulsion has comparatively regular molecular arrangement, main chain contain fluorine atoms, rather than side chain, perhaps other forms.The content of fluorine is greater than 11.5%, and splendid mechanical stability is that fluorine carbon emulsion can bear larger shearing force, and emulsion is impacted, and is specially adapted to the dispersing apparatus of high speed extension set.FEVE of the present invention can adopt vast and boundless ZH-01 in Changshu that patent documentation application number 200810040442.3 introduces, Dalian wherein a kind of of the F600 of nation, F500, Qingdao Hong Feng HFS-F-3300, HFS-F-3301, Changxing chemical industry 4312 that shake.
Containing distilled water in water transparent heat insulation paint of the present invention is the 30-45 weight part, again to contain the 37.5-40.5 weight part as good.
Contain HDI solidifying agent 6-9.5 weight part in water transparent heat insulation paint of the present invention, be advisable to contain the 7.5-8.5 weight part again.
HDI solidifying agent of the present invention (hexamethylene diisocyanate, hexamethylene diisocyanate, available available from appearance osmanthus, Shunde District, Foshan City Dan Dilai chemical industry company limited), its technical indicator:
Product forms non-volatile part: the 89.0-91.0(solvent is N-BUTYL ACETATE)
Viscosity (25 ℃, cp): 600 ± 300 cp
NCO content: 19 ± 0.5%
Colour (Celsius) :≤1 flash-point: 22 ℃
Free monomer content :≤0.5%
The preparation method of a kind of water transparent heat insulation paint of the present invention comprises the following steps:
(1) at first press the weight part of the contained each component of water transparent heat insulation paint, take the amount of various raw materials.
(2) distilled water is joined in reaction vessel, under the condition of high speed dispersion, with the nano-ITO powder with-join in distilled water Grams Per Minute-Grams Per Minute, high speed dispersion 15-50 minute to being soup compound.Described high speed dispersion stirs with 1160-1500 rev/min exactly.
(3) with the soup compound of gained in step (2), join in the FEVE emulsion, middling speed was disperseed 15-50 minute, obtained a kind of intermediate product, and described middling speed disperses to stir with 500-1000 rev/min exactly.
(4) add solidifying agent HDI in the intermediate product in the step (3) while stirring, middling speed stirred 15-50 minute, and it is exactly to stir with 500-1000 rev/min that described middling speed is disperseed, and obtains water transparent heat insulation paint.
The time of disperseing in step (2) high speed is 15-50 minute, is advisable with 20-35 minute; In step (3), the time that middling speed is disperseed is 15-50 minute, again take 25-35 minute as good.
In step (4), the time that middling speed is disperseed is 15-50 minute, again with 20-40 minute for well.
Said reaction vessel can be dispersion machine or with the reactor of stirrer.
The present invention can be horizontal sand mill or blue formula sand mill at the equipment that carries out using when high speed dispersion or middling speed are disperseed.Its technical parameter sees Table 1.
The technical parameter of table 1 horizontal sand mill
The present invention's indium tin oxide powder (ITO powder) is plated to film in coating after, to visible transparent, strong reflection infrared light, and low membrane resistance is arranged.
Coating of the present invention has excellent sticking power, ultraviolet-resistant aging, and waterproof, fire-retardant, good heat-insulation effect has conducting function, and low price can make microwave attenuation again.
Processing method of the present invention, technique is simple, easy handling, facility investment is little, and the water transparent heat insulation paint excellent property of making is of many uses.
Can be widely used in glass heat-proof and the antifog defrosting of the vehicles such as automobile, train, aircraft.
Can be used for building glass, the heat-insulation and heat-preservation of solar energy glass etc.
Can be widely used in antistatic glass.
Can be used for petrochemical complex, electric industry building, Metal smelting, medicine weaving, the heat insulating of the plurality of devices of the multiple industries such as shipbuilding papermaking, cold insulation and antistatic.
Can be used for computer house, radar shields the isolated far infrareds and the place that needs shielding electromagnetic wave such as protective belt, causes the leakage of error and the security information of electronics with the intrusion that prevents the external electromagnetic ripple.
Embodiment
With specific embodiment, a kind of water transparent heat insulation paint of the present invention and preparation method thereof is further described now, will helps the further understanding to the present invention and effect thereof.Embodiment does not limit protection scope of the present invention.Protection scope of the present invention is decided by claims.
Embodiment 1
A kind of water transparent heat insulation paint of the present embodiment, its component is:
5.0 kilograms of nano indium tin oxide composite granules (nano-ITO) (Kg)
The particle diameter of Nanometer ITO Powder is 20nm-50nm.
37.5 kilograms of distilled water (Kg)
Water-based fluorocarbon resin emulsion FEVE emulsion (Changxing chemical industry 4312) 50 kilograms (Kg)
8.5 kilograms, HDI solidifying agent (Kg)
Its preparation method comprises following steps:
(1) at first press the weight part of the contained each component of water transparent heat insulation paint, take the amount of various raw materials.
(2) distilled water is joined in reaction vessel, under the condition of high speed dispersion, with-Grams Per Minute ground, the nano-ITO powder is joined in distilled water, high speed dispersion 25 minutes is to being soup compound.Described high speed dispersion stirs with 1160 rev/mins exactly.Its equipment can be used model SW20-1 horizontal sand mill.
(3) with the soup compound of gained in step (2), join in the FEVE emulsion, middling speed was disperseed 25 minutes, obtained a kind of intermediate product, and described middling speed disperses to stir with 800 rev/mins exactly.Its equipment can be used model SW45-1 horizontal sand mill.
(4) adding solidifying agent HDI in the intermediate product in the step (3) while stirring, middling speed was disperseed 30 minutes, it is exactly to stir with 1000 rev/mins that described middling speed is disperseed, and its equipment can be used model SW30-1 horizontal sand mill, obtains the water transparent heat insulation paint product.
The water transparent heat insulation paint that the present embodiment is prepared, good heat-insulation effect, ambient cure is fast, visible light transmissivity is more than or equal to 85%, the infrared reflection rate is greater than 90%, and rate of absorbing UV is more than or equal to 95%, and the microwave attenuation rate is greater than 90%, hardness is greater than 2H, aging: 2500H(GB/T1766):＞2500H, salt-fog test (GB/T1771):＞3500H, anti-corrosion test: (GB/T1763): 25%Naoh＞180D, 18%HC 1＞90D, 20%H2SO4＞30D.
The measuring method of visible light transmissivity: paint spay-coating on transparency silica glass, is measured with LS102 optical transmittance survey meter.Concrete operations are described below: adopt two blocks of transparency silica glass that transmittance is identical during experiment, one not spray material as on-gauge plate, a spray material.Choose the off-the-shelf model to be measured of visible light source irradiation in LS102 optical transmittance survey meter, inductor block is by the light intensity after surveying the visible light source incident intensity and seeing through tested transparency material, the ratio that sees through light intensity and incident intensity is transmitance, represents with percentage ratio.
The measuring method of infrared reflectivity: paint spay-coating on transparency silica glass, is measured with LS102 optical transmittance survey meter.Concrete operations are described below: adopt two blocks of transparency silica glass that transmittance is identical during experiment, one not spray material as on-gauge plate, a spray material.Choose the off-the-shelf model to be measured of infrared light light source irradiation in LS102 optical transmittance survey meter, inductor block is by the light intensity after surveying the infrared source incident intensity and seeing through tested transparency material, the ratio that sees through light intensity and incident intensity is transmitance, represents with percentage ratio.
The measuring method of absorption of UV: paint spay-coating on transparency silica glass, is measured with LS102 optical transmittance survey meter.Concrete operations are described below: adopt two blocks of transparency silica glass that transmittance is identical during experiment, one not spray material as on-gauge plate, a spray material.Choose the off-the-shelf model to be measured of ultraviolet source irradiation in LS102 optical transmittance survey meter, inductor block is by the light intensity after surveying the ultraviolet source incident intensity and seeing through tested transparency material, the ratio that sees through light intensity and incident intensity is transmitance, represents with percentage ratio.
Determination of hardness method: GB/T 6739-1996 testing method: with just stipulating Mitsubishi's pencil (9800 series) of model, with pencil sharper to exposing about cylinder shape lead for retractable pencil 3mm length (can not damage lead for retractable pencil), pencil is vertically drawn circle with friction pen core end face above the sand paper more than 400 orders, until till when obtaining the sharp keen lead for retractable pencil of end face flat edges (must not there be breakage and breach in the edge); Be contained on special-purpose pencil hardness tester, the load that is applied on nib is 1kg, and the angle of pencil and horizontal plane is 45 °, and the promotion pencil is drawn 2 (different positionss) altogether to the about 20mm of front slide, then with rubber with pencil vestige wiped clean.
Criterion: checking that product surface has or not scratches paint film.
Embodiment 2
A kind of water transparent heat insulation paint of the present embodiment, its component is:
2.0 kilograms of nano indium tin oxide composite granules (nano-ITO) (Kg)
The particle diameter of Nanometer ITO Powder is 20nm-50nm.
40.5 kilograms of distilled water (Kg)
45.0 kilograms of water-based fluorocarbon resin emulsion FEVE emulsions (Dalian shake the F600 of nation) (Kg)
8.0 kilograms, HDI solidifying agent (Kg)
Its preparation method comprises following steps:
(1) at first press the weight part of the contained each component of water transparent heat insulation paint, take the amount of various raw materials.
(2) distilled water is joined in reaction vessel, under the condition of high speed dispersion, with-Grams Per Minute ground, the nano-ITO powder is joined in distilled water, high speed dispersion 20 minutes is to being soup compound.Described high speed dispersion is used conventional dispersion machine (for example SW15-1 horizontal sand mill) exactly, stirs with 1160 rev/mins.
(3) with the soup compound of gained in step (2), join in the FEVE emulsion, middling speed was disperseed 25 minutes, obtained a kind of intermediate product, and described middling speed disperses to stir with 500 rev/mins exactly.
(4) adding solidifying agent HDI in the intermediate product in the step (3) while stirring, middling speed was disperseed 20 minutes, and it is exactly to stir with 800 rev/mins that described middling speed is disperseed, and obtains water transparent heat insulation paint.
The water transparent heat insulation paint that the present embodiment obtains, good heat-insulation effect, ambient cure is fast, visible light transmissivity 80%, the infrared reflection rate is greater than 90%, rate of absorbing UV 78%, microwave attenuation rate 85%, hardness is greater than 2H, aging: (GB/T1766):＞2500H, salt-fog test (GB/T1771): 3500H, anti-corrosion test: (GB/T1763): 25%Naoh＞180D, 18%HC 1＞90D, 20%H2SO4＞30D.
Embodiment 3
A kind of water transparent heat insulation paint of the present embodiment, its component is:
3.5 kilograms of nano indium tin oxide composite granules (nano-ITO) (Kg)
The particle diameter of Nanometer ITO Powder is 20nm-50nm.
39.0 kilograms of distilled water (Kg)
Water-based fluorocarbon resin emulsion FEVE emulsion (vast and boundless 2H-01 in Changshu) 55.0 kilograms (Kg)
9.0 kilograms, HDI solidifying agent (Kg)
Its preparation method comprises following steps:
(1) at first press the weight part of the contained each component of water transparent heat insulation paint, take the amount of various raw materials.
(2) distilled water is joined in reaction vessel, under the condition of high speed dispersion, with-Grams Per Minute ground, the nano-ITO powder is joined in distilled water, high speed dispersion 35 minutes is to being soup compound.Described high speed dispersion stirs with 1200 rev/mins exactly.
(3) with the soup compound of gained in step (2), join in the FEVE emulsion, middling speed was disperseed 40 minutes, obtained a kind of intermediate product, and described middling speed disperses to stir with 800 rev/mins exactly.
(4) adding solidifying agent HDI in the intermediate product in the step (3) while stirring, middling speed was disperseed 40 minutes, and it is exactly to stir with 800 rev/mins that described middling speed is disperseed, and obtains water transparent heat insulation paint.
The water transparent heat insulation paint that the present embodiment obtains, good heat-insulation effect, ambient cure is fast, visible light transmissivity is more than or equal to 80%, infrared reflection rate 90%, rate of absorbing UV are greater than 90%, and the microwave attenuation rate is greater than 85%, hardness is greater than 2H, aging: (GB/T1766):＞2500H, salt-fog test (GB/T1771)＞3500H, anti-corrosion test: (GB/T1763): 25%Naoh＞180D, 18%HC 1＞90D, 20%H2SO4＞30D.
Embodiment 4
A kind of water transparent heat insulation paint of the present embodiment, its component is:
1.5 kilograms of nano indium tin oxide composite granules (nano-ITO) (Kg)
The particle diameter of Nanometer ITO Powder is 20nm-50nm.
30 kilograms of distilled water (Kg)
Water-based fluorocarbon resin emulsion FEVE emulsion (Qingdao Hong Feng HFS-F-330) 40 kilograms (Kg)
6.0 kilograms, HDI solidifying agent (Kg)
Its preparation method comprises following steps:
(1) at first press the weight part of the contained each component of water transparent heat insulation paint, take the amount of various raw materials.
(2) distilled water is joined in reaction vessel, under the condition of high speed dispersion, with-Grams Per Minute ground, the nano-ITO powder is joined in distilled water, high speed dispersion 15 minutes is to being soup compound.Described high speed dispersion stirs with 1200 rev/mins exactly.
(3) with the soup compound of gained in step (2), join in the FEVE emulsion, middling speed was disperseed 15 minutes, obtained a kind of intermediate product, and described middling speed disperses to stir with 800 rev/mins exactly.
(4) adding solidifying agent HDI in the intermediate product in the step (3) while stirring, middling speed was disperseed 15 minutes, and it is exactly to stir with 500 rev/mins that described middling speed is disperseed, and obtains water transparent heat insulation paint.
Embodiment 5
A kind of water transparent heat insulation paint of the present embodiment, its component is:
7.0 kilograms of nano indium tin oxide composite granules (nano-ITO) (kilogram)
The particle diameter of Nanometer ITO Powder is 50nm-100nm.
45 kilograms of distilled water (kilogram)
Water-based fluorocarbon resin emulsion FEVE emulsion (Qingdao Hong Feng HFS-F-330) 60 kilograms (kilogram)
9.5 kilograms, HDI solidifying agent (kilogram) or 7.5 kilograms (kilogram)
If the FEVE emulsion is 60 kilograms, the HDI solidifying agent is 9.5 kilograms; When if the FEVE emulsion is 45 kilograms, the HDI solidifying agent is 7.5 kilograms.
Its preparation method comprises following steps:
(1) at first press the weight part of the contained each component of water transparent heat insulation paint, take the amount of various raw materials.
(2) distilled water is joined in reaction vessel, under the condition of high speed dispersion, with-Grams Per Minute ground, the nano-ITO powder is joined in distilled water, high speed dispersion 50 minutes is to being soup compound.Described high speed dispersion stirs with 1500 rev/mins exactly.
(3) with the soup compound of gained in step (2), join in the FEVE emulsion, middling speed was disperseed 50 minutes, obtained a kind of intermediate product, and described middling speed disperses to stir with 800 rev/mins exactly.
(4) adding solidifying agent HDI in the intermediate product in the step (3) while stirring, middling speed was disperseed 50 minutes, and it is exactly to stir with 800 rev/mins that described middling speed is disperseed, and obtains the water transparent heat insulation paint product.
Claims (1)
1. a water transparent heat insulation paint, is characterized in that, contains following component, nano indium tin metal oxide composite granule, 2.0 ~ 5.0 weight parts; Distilled water, 37.5 ~ 40.5 weight parts; Water-based FEVE fluorocarbon resin emulsion, 45 ~ 55 weight parts; The HDI solidifying agent, 7.5 ~ 8.5 weight parts, wherein the particle size range of nano indium tin metal oxide composite granule is 20 ~ 50 nanometers; The fluorine content of water-based FEVE fluorocarbon resin emulsion is greater than 11.5%, and the preparation method contains following steps:
At first press the weight part of contained each component of water transparent heat insulation paint, take the amount of various raw materials,
Distilled water is joined in reaction vessel, under the condition of high speed dispersion, with nano indium tin metal oxide composite granule with 1.2 Grams Per Minutes-2.2 Grams Per Minute join in distilled water, high speed dispersion 15 ~ 50 minutes is to being soup compound, described high speed dispersion stirs with 1160 ~ 1500 rev/mins exactly
With the soup compound of gained in (2) step, join in the FEVE emulsion, middling speed was disperseed 15 ~ 50 minutes, obtained a kind of intermediate product, and it is exactly to stir with 500 ~ 1000 rev/mins that described middling speed is disperseed,
In resulting intermediate product, adding solidifying agent HDI in the step (3) while stirring, middling speed was disperseed 15 ~ 50 minutes, and described dispersion is stirred with 500 ~ 1000 rev/mins exactly.
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