CN107556879A - A kind of heat-insulating nano composite coating and preparation method thereof - Google Patents
A kind of heat-insulating nano composite coating and preparation method thereof Download PDFInfo
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- 238000000576 coating method Methods 0.000 title claims abstract description 59
- 239000011248 coating agent Substances 0.000 title claims abstract description 54
- 239000002114 nanocomposite Substances 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000001913 cellulose Substances 0.000 claims abstract description 32
- 229920002678 cellulose Polymers 0.000 claims abstract description 32
- 229910052688 Gadolinium Inorganic materials 0.000 claims abstract description 28
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000004964 aerogel Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000004593 Epoxy Substances 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- 239000000945 filler Substances 0.000 claims abstract description 15
- 239000012452 mother liquor Substances 0.000 claims abstract description 15
- 239000011858 nanopowder Substances 0.000 claims abstract description 14
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 14
- 239000002131 composite material Substances 0.000 claims abstract description 13
- 239000003822 epoxy resin Substances 0.000 claims abstract description 13
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 3
- 238000009413 insulation Methods 0.000 claims description 17
- CMIHHWBVHJVIGI-UHFFFAOYSA-N gadolinium(iii) oxide Chemical class [O-2].[O-2].[O-2].[Gd+3].[Gd+3] CMIHHWBVHJVIGI-UHFFFAOYSA-N 0.000 claims description 12
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 8
- 239000000839 emulsion Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 229910002609 Gd2Zr2O7 Inorganic materials 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 4
- 229910006213 ZrOCl2 Inorganic materials 0.000 claims description 4
- 150000001768 cations Chemical class 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000000975 co-precipitation Methods 0.000 claims description 4
- 244000144992 flock Species 0.000 claims description 4
- 229910001938 gadolinium oxide Inorganic materials 0.000 claims description 4
- 229910017604 nitric acid Inorganic materials 0.000 claims description 4
- 239000002244 precipitate Substances 0.000 claims description 4
- 238000009938 salting Methods 0.000 claims description 4
- 238000007873 sieving Methods 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 4
- 230000009514 concussion Effects 0.000 claims description 3
- 238000004108 freeze drying Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- NZSLBYVEIXCMBT-UHFFFAOYSA-N chloro hypochlorite;zirconium Chemical class [Zr].ClOCl NZSLBYVEIXCMBT-UHFFFAOYSA-N 0.000 claims description 2
- 229920002472 Starch Polymers 0.000 claims 1
- 238000001354 calcination Methods 0.000 claims 1
- 239000008107 starch Substances 0.000 claims 1
- 235000019698 starch Nutrition 0.000 claims 1
- IPCAPQRVQMIMAN-UHFFFAOYSA-L zirconyl chloride Chemical compound Cl[Zr](Cl)=O IPCAPQRVQMIMAN-UHFFFAOYSA-L 0.000 claims 1
- 229920006334 epoxy coating Polymers 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- CMOAHYOGLLEOGO-UHFFFAOYSA-N oxozirconium;dihydrochloride Chemical compound Cl.Cl.[Zr]=O CMOAHYOGLLEOGO-UHFFFAOYSA-N 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000002086 nanomaterial Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010422 painting Methods 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229940075613 gadolinium oxide Drugs 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical group [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
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- 238000011105 stabilization Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Paints Or Removers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The present invention relates to technical field of coatings, and in particular to a kind of heat-insulating nano composite coating and preparation method thereof.The heat-insulating nano composite coating is made up of the raw material of following parts by weight：25 50 parts of waterborne curing agents, the mother liquor of 50 100 parts of water-base epoxy composite coatings, the mother liquor of the water-base epoxy composite coating, as filler, are obtained by gadolinium zirconate nano-powder and cellulose aerogels after adding the mixed liquor of water and aqueous epoxy resins.The heat-proof quality of the heat-insulating nano composite coating greatly reinforces, at the same solve the problems, such as coating type property is bad and coating coverage, the durability, anti-corrosive properties and intensity of coating is improved again.
Description
Technical field
The present invention relates to technical field of coatings, and in particular to a kind of heat-insulating nano composite coating and preparation method thereof.
Background technology
In China, the temperature difference is larger throughout the year for most area, and summer is hot, and winter is cold.And the wall built now every
Hot property is bad.Summer generally takes air conditioner refrigerating now, and this has resulted in the loss of heat, causes the waste of the energy.Together
Sample, winter are warmed oneself using air-conditioning and other electrical equipment, and temperature easily scatters and disappears within doors.Therefore studying a kind of coating, to possess it good
Heat-proof quality just seems most important.
The basic composition of present coating general on the market includes pigment, dyestuff, solvent and filler, wants to obtain coating
Other properties are completed often through adding filler to the inside.But there is also many insoluble inherent defects.As at present
Often the use of filler be inorganic ceramic particle, such as titanium dioxide, but titanium dioxide is only added, engineering properties embrittlement and painting can be caused
Expect that coverage rate is bad.Such as reduce inorganic ceramic particle content, increase resinoid bond adding proportion, although can reduce cost,
Lift coat coverage and avoid engineering properties brittle, but influence whether the heat-proof quality of coating.
Therefore, it is extremely urgent to research and develop a kind of novel heat-insulation composite coating.
The content of the invention
It is an object of the invention to provide a kind of heat-insulating nano composite coating and preparation method thereof, the compound painting of the heat insulation nano
Material is compounded gadolinium zirconate and cellulose aerogels using ultrasonic vibration method, then the gadolinium zirconate of compounding is filled out with cellulose aerogels
It is charged in aqueous epoxy resins and heat-insulating nano composite coating is made.The heat-proof quality of the heat-insulating nano composite coating greatly reinforces,
Solve the problems, such as simultaneously coating type property is bad and coating coverage, make the durability, anti-corrosive properties and intensity of coating equal again
Improve.
The object of the present invention is achieved like this：A kind of heat-insulating nano composite coating, the heat-insulating nano composite coating by with
The raw material composition of lower parts by weight：25-50 part waterborne curing agents, the mother liquor of 50-100 part water-base epoxy composite coatings, the water
Property epoxy composite coating mother liquor by gadolinium zirconate nano-powder and cellulose aerogels as filler, add water and water-base epoxy tree
Obtained in the mixed liquor of fat.
Described waterborne curing agent is Aq419 or H228B or W651 or W650.
A kind of preparation method of heat-insulating nano composite coating, this method comprise the following steps.
A. prepared by coprecipitation gadolinium zirconate powder：Take 5-10 part gadolinium oxides (Gd203), 8-17 part zirconium oxychlorides (ZrOCl2·
8H2O), ZrOCl2.8H20 is dissolved in 20-30 part ammoniacal liquor, fully reaction obtain white flock precipitate thing, with absolute ethyl alcohol and go from
Sub- water cleans 5-10 times, is then substantially soluble in 20-30 parts HN03In, obtain solution one, i.e. ZrO (N03)2Solution；By Gd203It is dissolved in
In the nitric acid of 5-10 parts, solution two, i.e. Gd (N0 is made3)3Solution；Resulting solution one and solution two are hybridly prepared into cation
Concentration is 0.05mol/L-0.07mol/L female salting liquid, is instilled and obtains sediment into the ammoniacal liquor that concentration is 22-25%,
Filtered after timeliness 24h-48h, be placed in 50 DEG C of -70 DEG C of baking ovens dry, it is ground sieving after in Muffle furnace at 500-1000 DEG C
4-6h is calcined, obtains Gd2Zr2O7Nano-powder.
B. prepared by cellulose aerogels：In beaker containing 10g-151.4%-1.6% cellulose fento suspension, hydrochloric acid is used
Regulation pH value is 4-5, is 500-600rpm in rotating speed, and temperature stirs 2h-4h under the conditions of being 25 DEG C -27 DEG C, sample is freeze-dried,
Prepare cellulose aerogels.
C. the gadolinium zirconate nano-powder prepared and cellulose aerogels, ultrasonic vibration 2h-4h are taken, concussion frequency is
100Hz-200Hz, 60 DEG C -80 DEG C of vacuum drying chamber, 30min-60min are removed and placed in, obtains heat insulation nano composite material；Take
The above-mentioned heat insulation nano composite material of 10-40 parts is added to the mixed of 100-200 parts water and 100-200 part water-base resins as filler
Close in liquid, 1-2h is disperseed in ball mill, produce the mother liquor of water-base epoxy composite coating.
D. take 25-50 parts waterborne curing agent be well mixed with 50-100 part water after the mother liquor with water-base epoxy composite coating again
By 1：3-4 ratio mixing.
Aqueous epoxy resins in this method step c are Ar555 epoxy resin or H228A epoxy resin or E44 epoxies
Emulsion or E51 epoxy emulsions or E20 epoxy emulsions.
Compared with prior art, advantages of the present invention is with effect.
The gadolinium zirconate nano-powder that the present invention uses has defect fluorite structure, each Gd2Zr2O7Have one in unit
Individual Lacking oxygen, it is lower compared to traditional thermal insulating filling thermal conductivity, and then make it that coating effect of heat insulation is more excellent.But only add zirconic acid
Gadolinium, not only results in engineering properties embrittlement and coat coverage is bad.But if reduce gadolinium zirconate addition when, although
Mechanical performance can be improved, increase coat coverage, but influence whether the heat-proof quality of coating.The present invention uses cellulose airsetting
Glue is combined with gadolinium zirconate, improves mechanical performance, increases coat coverage.Cellulose aerogels are come compared to traditional aeroge simultaneously
Say, while be also equipped with biorenewable, biocompatibility and biodegradability, ecological, environmental protective.
The present invention proposes the preparation method of the water-base epoxy compound heat-insulation coating used, and filler used is gadolinium zirconate powder
Compound to form heat insulation nano powder with cellulose aerogels, because gadolinium zirconate powder has a high thermal insulation, lower thermal conductivity make its every
Thermal effect significantly strengthens.And cellulose aerogels solve the shortcomings that coating mechanical property that inorganic filler is brought.It is and fine
Plain aeroge is tieed up not destroy environment.
Brief description of the drawings
Fig. 1 is the comparison schematic diagram of embodiment 1-4 thermal conductivities.
Fig. 2 is embodiment 1-4 effect of heat insulation comparison schematic diagrams.
Fig. 3 be simple film integrate heat-proof quality determine device, 1：Heated light sources, 2：Digital display thermometer, 3：It is to be tested
Sample or blank plate, 4：Thermometric room.
Embodiment
With reference to embodiment, the present invention is described in detail.
Embodiment 1：It is not added with the waterborne epoxy coatings of any filler.
The preparation of coating：1）100 parts of aqueous epoxy resins and 100 parts of water are taken,
2）Disperse 4h in ball mill.
3）50 parts of waterborne curing agents are taken to be well mixed with 100 parts of water；By the mother liquor of waterborne epoxy coatings and the water diluted
Property curing agent press 4：1 ratio mixing is coated on the metal substrate through handling well, and control thickness is in 50-200um, cold curing
.
Embodiment 2：Only add the waterborne epoxy coatings of cellulose aerogels.
（1）It is prepared by cellulose aerogels：In beaker containing 10g1.4% cellulose fento suspension, with salt acid for adjusting pH
It is worth for 4, is 500rpm in rotating speed, temperature stirs 2h, sample freeze-drying, prepares cellulose aerogels under the conditions of being 25 DEG C.
（2）The preparation of cellulose aerogels coating：100 parts of aqueous epoxy resins and 100 parts of water are taken, take 30 parts of cellulose gas
Gel filler, add in above resin system, 4h is disperseed in ball mill.Mixed taking 50 parts of waterborne curing agents with 100 parts of water
Uniformly；By the mother liquor of water-base epoxy compound heat-insulation coating and the waterborne curing agent diluted by 4：1 ratio mixing is coated in warp
On the metal substrate handled well, control thickness is in 50-200um, cold curing.
Embodiment 3：Only add the waterborne epoxy coatings of gadolinium zirconate nano material.
（1）Coprecipitation prepares nanometer zirconic acid gadolinium coating：Take 6 parts of gadolinium oxide (Gd203), 10 parts of zirconium oxychloride (ZrOCl2·
8H2O), other is that analysis is pure.ZrOCl2.8H20 is dissolved in 25 parts of ammoniacal liquor, and fully reaction obtains white flock precipitate thing, with nothing
Water-ethanol and deionized water are cleaned 6 times, are then substantially soluble in 25 parts of HN03In, obtain ZrO (N03)2Solution.By Gd203It is dissolved in 5 parts
Nitric acid in, Gd (N0 are made3)3Solution.Two kinds of solution are hybridly prepared into female salting liquid that cation concn is 0.05mol/L,
Instilled and sediment obtained into concentrated ammonia liquor, filtered after timeliness 24h, be placed in 60 DEG C of baking ovens dry, it is ground sieving after
4-6h is calcined at 800 DEG C in Muffle furnace, obtains Gd2Zr2O7Nano-powder
（2）The preparation of gadolinium zirconate coating：100 parts of aqueous epoxy resins and 100 parts of water are taken, 50 parts of gadolinium zirconate powder stuffings is taken, adds
Enter in above resin system, 4h is disperseed in ball mill.It is well mixed taking 50 parts of waterborne curing agents with 100 parts of water；Will be water-based
The mother liquor of epoxy composite insulating moulding coating and the waterborne curing agent that has diluted are by 4：1 ratio mixing is coated in the metal through handling well
On substrate, control thickness is in 50-200um, cold curing.
Embodiment 4：Heat-insulating nano composite coating of the present invention.
（1）Coprecipitation prepares nanometer zirconic acid gadolinium coating：Take 6 parts of gadolinium oxide (Gd203), 10 parts of zirconium oxychloride (ZrOCl2·
8H2O), other is that analysis is pure.ZrOCl2.8H20 is dissolved in 25 parts of ammoniacal liquor, and fully reaction obtains white flock precipitate thing, with nothing
Water-ethanol and deionized water are cleaned 6 times, are then substantially soluble in 25 parts of HN03In, obtain ZrO (N03)2Solution.By Gd203It is dissolved in 5 parts
Nitric acid in, Gd (N0 are made3)3Solution.Two kinds of solution are hybridly prepared into female salting liquid that cation concn is 0.05mol/L,
Instilled and sediment obtained into concentrated ammonia liquor, filtered after timeliness 24h, be placed in 60 DEG C of baking ovens dry, it is ground sieving after
4-6h is calcined at 800 DEG C in Muffle furnace, obtains Gd2Zr2O7Nano-powder.
（2）It is prepared by cellulose aerogels：In beaker containing 10g1.4% cellulose fento suspension, with salt acid for adjusting pH
It is worth for 4, is 500rpm in rotating speed, temperature stirs 2h, sample freeze-drying, prepares cellulose aerogels under the conditions of being 25 DEG C.
（3）The preparation of heat insulation nano composite material：The gadolinium zirconate nano-powder prepared and cellulose aerogels are taken, are used
Ultrasonic vibration 3h, concussion frequency are 100Hz, are removed and placed in 60 DEG C of vacuum drying chamber, 50min.Take 100 parts of aqueous epoxy resins
With 100 parts of water, gadolinium zirconate powder and cellulose aerogels are added in above resin system, 2 h are disperseed in ball mill, i.e.,
Obtain the mother liquor of heat-insulating nano composite coating；50 parts of waterborne curing agents are taken to be well mixed with 100 parts of water again；By nano heat insulating coating
Mother liquor and the waterborne curing agent that has diluted are by 4：Coated on the metal substrate through handling well, control thickness exists for 1 ratio mixing
50-200um, cold curing.
The thermal conductivity of 5 different coating of embodiment compares.
The DIL 402C types dilatometers produced using German NETZSCH companies are entered to the thermal conductivity of embodiment 1-4 coating
Row measure, sample size are 2.5mm × 5mm × 26mm, and heating rate is 5 DEG C/min, and 25-1200 DEG C of Range of measuring temp is empty
Gas atmosphere, as a result as shown in figure 1, the thermal conductivity of embodiment 4 is better than embodiment 1-3, i.e., relative to being not added with any filler, only add
Add the waterborne epoxy coatings of cellulose aerogels or only add the waterborne epoxy coatings of gadolinium zirconate nano material, of the invention is heat-insulated
Gadolinium zirconate nano-powder and cellulose aerogels are as filler in nano composite dope, the two can Synergistic, show thermal conductivity
Write and improve.
Embodiment 6
According to JG/T235-2008《Architectural reflective heat-insulation paint》In preparation method, prepare simple film synthesis heat-proof quality and survey
Determine device, as shown in Figure 3.Wherein, heated light sources are the heating lamps of 150W power, distance apply film location 30cm, thermometric room except
The position of upper ends sample to be tested, other positions can regard thermal insulation as, and the temperature in thermometric room is shown in thermometer.Instrument is
Imitate under sunshine irradiation, indoor temperature change generated in case situation corresponding to different exterior wall films.Room temperature is controlled 25 during experiment
DEG C, it is constant equivalent to the environment temperature around building, blank plate equivalent to exposed exterior wall, sample to be tested equivalent to applied every
The exterior wall of hot coating, temperature test is carried out to the thermometric room for simulating indoor temperature change generated in case.During experiment, with sample to be tested or blank plate
Sealing covers thermometric room, connects heating lamp power supply, and per 2min, thermometric room temperature of record is constant to temperature stabilization, draws temperature
Lift curves, compare for heat-proof quality.Using heat-insulated temperature difference △ T as reference index, to embodiment 1-4 be made film synthesis every
Hot property is characterized, as a result as shown in Figure 2.
Heat-insulated differential thermal calculation formula is as follows:
In formula:
T --- adiabatic temperature, DEG C；
Ton--- the final temperature in n-th piece of blank plate greenhouse, DEG C；
T1n--- the final temperature of n-th piece of heat insulating coating film plate thermometric room, DEG C.
The effect of heat insulation of embodiment 4 is better than embodiment 1-3, i.e., relative to be not added with any filler, only add cellulose gas
The waterborne epoxy coatings of gel or the waterborne epoxy coatings for only adding gadolinium zirconate nano material, the compound painting of heat insulation nano of the invention
Gadolinium zirconate nano-powder and cellulose aerogels are as filler in material, the two can Synergistic, significantly improve the heat-insulated effect of coating
Fruit.
Claims (4)
- A kind of 1. heat-insulating nano composite coating, it is characterised in that the heat-insulating nano composite coating by following parts by weight raw material Composition：25-50 part waterborne curing agents, the mother liquor of 50-100 part water-base epoxy composite coatings, the water-base epoxy composite coating Mother liquor, as filler, is obtained by gadolinium zirconate nano-powder and cellulose aerogels after adding the mixed liquor of water and aqueous epoxy resins Arrive.
- 2. according to claim 1 heat-insulating nano composite coating, it is characterised in that described waterborne curing agent be Aq419 or H228B or W651 or W650.
- 3. a kind of preparation method of heat-insulating nano composite coating as claimed in claim 1, it is characterised in that this method is included such as Lower step：A. prepared by coprecipitation gadolinium zirconate powder：Take 5-10 part gadolinium oxides (Gd203), 8-17 part zirconium oxychlorides (ZrOCl2· 8H2O), ZrOCl2.8H20 is dissolved in 20-30 part ammoniacal liquor, fully reaction obtain white flock precipitate thing, with absolute ethyl alcohol and go from Sub- water cleans 5-10 times, is then substantially soluble in 20-30 parts HN03In, obtain solution one, i.e. ZrO (N03)2Solution；By Gd203It is dissolved in In the nitric acid of 5-10 parts, solution two, i.e. Gd (N0 is made3)3Solution；Resulting solution one and solution two are hybridly prepared into cation Concentration is 0.05mol/L-0.07mol/L female salting liquid, is instilled into the ammoniacal liquor that concentration is concentration 22-25% and is sunk Starch, filter after timeliness 24h-48h, be placed in 50 DEG C of -70 DEG C of baking ovens and dry, ground sieving after in Muffle furnace in 500- 1000 DEG C of calcining 4-6h, obtain Gd2Zr2O7Nano-powder；B. prepared by cellulose aerogels：In beaker containing 10g-151.4%-1.6% cellulose fento suspension, adjusted with hydrochloric acid PH value is 4-5, is 500-600rpm in rotating speed, temperature stirs 2h-4h, sample freeze-drying, prepared under the conditions of being 25 DEG C -27 DEG C Go out cellulose aerogels；C. the gadolinium zirconate nano-powder prepared and cellulose aerogels, ultrasonic vibration 2h-4h are taken, concussion frequency is 100Hz- 200Hz, 60 DEG C -80 DEG C of vacuum drying chamber, 30min-60min are removed and placed in, obtains heat insulation nano composite material；Take 10-40 Part above-mentioned heat-insulation composite material is added in the mixed liquor of 100-200 parts water and 100-200 part water-base resins as filler, Disperse 1-2h in ball mill, produce the mother liquor of water-base epoxy composite coating；D. take 25-50 parts waterborne curing agent be well mixed with 50-100 part water after again the mother liquor with water-base epoxy composite coating by 1： 3-4 ratio mixing.
- 4. the preparation method of heat-insulating nano composite coating according to claim 3, it is characterised in that step described in this method Aqueous epoxy resins in c are Ar555 epoxy resin or H228A epoxy resin or E44 epoxy emulsions or E51 epoxy emulsions, Or E20 epoxy emulsions.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115093725A (en) * | 2022-06-23 | 2022-09-23 | 上海箬宇新材料有限公司 | 1800 ℃ resistant phosphate heat-insulating fireproof coating and preparation method thereof |
| CN115260867A (en) * | 2022-07-06 | 2022-11-01 | 中城国网(北京)综合能源有限公司 | Long-acting anti-condensation polymer nano thermal insulation coating and preparation method thereof |
| CN115725209A (en) * | 2023-01-05 | 2023-03-03 | 曹阳 | Nano composite coating and preparation method thereof |
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| CN115093725A (en) * | 2022-06-23 | 2022-09-23 | 上海箬宇新材料有限公司 | 1800 ℃ resistant phosphate heat-insulating fireproof coating and preparation method thereof |
| CN115093725B (en) * | 2022-06-23 | 2023-03-10 | 上海箬宇新材料有限公司 | 1800 ℃ resistant phosphate heat-insulating fireproof coating and preparation method thereof |
| CN115260867A (en) * | 2022-07-06 | 2022-11-01 | 中城国网(北京)综合能源有限公司 | Long-acting anti-condensation polymer nano thermal insulation coating and preparation method thereof |
| CN115260867B (en) * | 2022-07-06 | 2023-10-13 | 中城国网(北京)综合能源有限公司 | Long-acting anti-dewing high-molecular nano heat-insulating coating and preparation method thereof |
| CN115725209A (en) * | 2023-01-05 | 2023-03-03 | 曹阳 | Nano composite coating and preparation method thereof |
| CN115725209B (en) * | 2023-01-05 | 2023-12-22 | 曹阳 | Nano composite coating and preparation method thereof |
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| CN107556879B (en) | 2020-01-21 |
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