CN114479525A - Curtain wall with heat insulation effect and preparation method thereof - Google Patents
Curtain wall with heat insulation effect and preparation method thereof Download PDFInfo
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- CN114479525A CN114479525A CN202210017908.8A CN202210017908A CN114479525A CN 114479525 A CN114479525 A CN 114479525A CN 202210017908 A CN202210017908 A CN 202210017908A CN 114479525 A CN114479525 A CN 114479525A
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- 238000009413 insulation Methods 0.000 title claims abstract description 89
- 230000000694 effects Effects 0.000 title claims abstract description 52
- 238000002360 preparation method Methods 0.000 title abstract description 16
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical class O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 80
- 239000000835 fiber Substances 0.000 claims abstract description 64
- 239000002002 slurry Substances 0.000 claims abstract description 44
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 36
- 239000000758 substrate Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000008367 deionised water Substances 0.000 claims abstract description 22
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 22
- 239000003605 opacifier Substances 0.000 claims abstract description 22
- 238000005507 spraying Methods 0.000 claims abstract description 21
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 20
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000843 powder Substances 0.000 claims abstract description 20
- 238000001035 drying Methods 0.000 claims abstract description 19
- 229910052810 boron oxide Inorganic materials 0.000 claims abstract description 18
- 239000000378 calcium silicate Substances 0.000 claims abstract description 18
- 229910052918 calcium silicate Inorganic materials 0.000 claims abstract description 18
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims abstract description 18
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000010881 fly ash Substances 0.000 claims abstract description 18
- 229910021485 fumed silica Inorganic materials 0.000 claims abstract description 18
- 239000010445 mica Substances 0.000 claims abstract description 18
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 238000005245 sintering Methods 0.000 claims abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 25
- 229910021389 graphene Inorganic materials 0.000 claims description 25
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 21
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 20
- 238000001354 calcination Methods 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 17
- 239000002243 precursor Substances 0.000 claims description 14
- 239000011259 mixed solution Substances 0.000 claims description 13
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000000243 solution Substances 0.000 claims description 12
- 238000009210 therapy by ultrasound Methods 0.000 claims description 11
- 239000007864 aqueous solution Substances 0.000 claims description 10
- 238000012986 modification Methods 0.000 claims description 9
- 230000004048 modification Effects 0.000 claims description 9
- 238000002791 soaking Methods 0.000 claims description 8
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 7
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 7
- RSKGMYDENCAJEN-UHFFFAOYSA-N hexadecyl(trimethoxy)silane Chemical compound CCCCCCCCCCCCCCCC[Si](OC)(OC)OC RSKGMYDENCAJEN-UHFFFAOYSA-N 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000000498 ball milling Methods 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 6
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical group [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 6
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 6
- 239000004408 titanium dioxide Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 7
- 239000012774 insulation material Substances 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 238000012216 screening Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 14
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 238000002715 modification method Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 238000005054 agglomeration Methods 0.000 description 4
- 230000002776 aggregation Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
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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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- 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
- 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
-
- 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
- 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
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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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
- 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
-
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Inorganic Fibers (AREA)
Abstract
The invention belongs to the technical field of curtain walls, and particularly discloses a curtain wall with a heat insulation effect and a preparation method thereof, wherein the curtain wall with the heat insulation effect comprises an aluminum substrate and a heat insulation layer, and the heat insulation layer is formed by spraying heat insulation slurry on the aluminum substrate, drying and sintering; the heat insulation slurry is prepared from the following raw materials: diatomite, modified zirconia fiber, fly ash, an opacifier, boron oxide, calcium silicate, fumed silica, mica powder, a silane coupling agent and deionized water. The thermal insulation layer is formed by spraying the thermal insulation material on the surface of the aluminum substrate, so that the thermal insulation effect is obviously improved, and the wear resistance of the curtain wall is obviously improved on the premise of keeping a good thermal insulation effect by using the slurry taking the diatomite and the modified zirconia fiber as main materials and the fly ash, the light-screening agent, the boron oxide, the calcium silicate, the fumed silica, the mica powder and the silane coupling agent as auxiliary materials.
Description
Technical Field
The invention relates to the technical field of curtain walls, in particular to a curtain wall with a heat insulation effect and a preparation method thereof.
Background
Buildings, as a product of human social progress, are the primary locations for people's residence and leisure and entertainment, and organically serve people's production and life. The curtain wall is not only a main structure for building heat preservation, but also can play a role in beautifying the building. Curtain wall panels have many advantages that combine the advantages of various materials.
The patent with the publication number of CN105969051B discloses a multifunctional curtain wall board, and specifically discloses that the multifunctional curtain wall board comprises a metal substrate and a spraying slurry sprayed on the surface of the metal substrate, wherein 1) the spraying slurry sprayed on the metal substrate is prepared from 40kg of enamel glaze blocks, 4kg of clay, 1kg of potassium chloride, 5kg of quartz powder, 5kg of negative ion generating agent, 25kg of energy storage luminescent powder and 44kg of water through ball milling for 0.5-10 hours by a ball mill, uniformly mixing, sieving by a 150-mesh sieve to obtain the spraying glaze slurry, putting the metal substrate sprayed with the glaze slurry into a 200-DEG C oven for drying for 2 hours, and then putting the metal substrate into a kiln for calcining at 850 ℃ for 20 minutes to obtain the multifunctional curtain wall board. The multifunctional curtain wall is obtained by calcining at 850 ℃ for 20min, and the metal base material with the melting point lower than 850 ℃ is influenced at the calcining temperature of 850 ℃, for example, when the metal base material is aluminum alloy, the quality of the aluminum alloy is obviously influenced.
Disclosure of Invention
The invention provides a curtain wall with a heat insulation effect and a preparation method thereof.
The invention adopts the following technical scheme for solving the technical problems:
a curtain wall with heat insulation effect comprises an aluminum substrate and a heat insulation layer, wherein the heat insulation layer is formed by spraying heat insulation slurry on the aluminum substrate, drying and sintering;
the heat insulation slurry is prepared from the following raw materials in parts by weight: 25-40 parts of diatomite, 10-20 parts of modified zirconia fiber, 4-9 parts of fly ash, 2-6 parts of an opacifier, 1-4 parts of boron oxide, 1-2.5 parts of calcium silicate, 1-2 parts of fumed silica, 0.5-1.5 parts of mica powder, 0.2-0.8 part of a silane coupling agent and 20-35 parts of deionized water.
The thermal insulation layer is formed by spraying the thermal insulation material on the surface of the aluminum substrate, so that the thermal insulation effect is obviously improved, and the slurry taking the diatomite and the modified zirconia fiber as main materials and the fly ash, the opacifier, the boron oxide, the calcium silicate, the fumed silica, the mica powder and the silane coupling agent are used for assisting in obviously improving the wear resistance of the curtain wall on the premise of keeping the good thermal insulation effect.
As a preferable scheme, the heat insulation slurry is prepared from the following raw materials in parts by weight: 30-40 parts of diatomite, 12-20 parts of modified zirconia fiber, 4-7 parts of fly ash, 2-5 parts of an opacifier, 1.5-4 parts of boron oxide, 1.5-2.5 parts of calcium silicate, 1.2-2 parts of fumed silica, 0.5-1.2 parts of mica powder, 0.2-0.6 part of a silane coupling agent and 25-35 parts of deionized water.
As a preferable scheme, the heat insulation slurry is prepared from the following raw materials in parts by weight: 36 parts of diatomite, 18 parts of modified zirconia fiber, 6 parts of fly ash, 4 parts of an opacifier, 3 parts of boron oxide, 2 parts of calcium silicate, 1.5 parts of fumed silica, 1 part of mica powder, 0.5 part of a silane coupling agent and 28 parts of deionized water.
As a preferable scheme, the opacifier is silicon carbide and titanium dioxide, and the weight ratio of the silicon carbide to the titanium dioxide is 1: 0.5 to 2.
Preferably, the silane coupling agent is one or more of silane coupling agent KH550, silane coupling agent KH540, silane coupling agent KH902, silane coupling agent KH554, silane coupling agent KH590, silane coupling agent KH602, silane coupling agent KH120 and silane coupling agent KH 270.
As a preferable scheme, the preparation method of the modified zirconia fiber comprises the following steps:
s1, adding 2-8 parts by weight of vinyltriethoxysilane, 2-8 parts by weight of tetraethoxysilane and 20-40 parts by weight of propylene glycol into 40-80 parts by weight of deionized water, uniformly dispersing, adding 2-6 parts by weight of hydrofluoric acid aqueous solution, and uniformly stirring to obtain sol;
s2, adding 10-20 parts by weight of graphene into 30-50 parts by weight of absolute ethyl alcohol, uniformly dispersing, adding 1-4 parts by weight of hexadecyl trimethyl ammonium bromide and 0.2-1 part by weight of hexadecyl trimethoxy silane, and uniformly stirring to obtain a graphene mixed solution;
s3, dripping 2-6 parts by weight of graphene mixed solution into 4-12 parts by weight of sol, and uniformly stirring to obtain a modified solution;
s4, adding 2-5 parts by weight of zirconia fiber into 4-12 parts by weight of modification liquid, soaking for 2-6 hours, carrying out ultrasonic treatment, and drying to constant weight to obtain a precursor;
and S5, calcining the precursor at 600-700 ℃ for 40-80 min, calcining at 450-550 ℃ for 30-60 min, and cooling to obtain the modified zirconia fiber.
According to the invention, vinyl triethoxysilane, tetraethoxysilane, propylene glycol deionized water and hydrofluoric acid aqueous solution are prepared into sol, graphene is treated by cetyl trimethyl ammonium bromide and hexadecyl trimethoxy silane to obtain graphene mixed solution, the graphene is dripped into the sol to prepare modified solution, the zirconia is added into the modified solution, and the modified zirconia fiber capable of remarkably improving the wear-resisting effect is obtained by soaking, ultrasonic-assisted modification and calcination.
On one hand, the modified zirconia fiber can be uniformly dispersed in the heat insulation slurry, agglomeration is avoided, and the curtain wall is not remarkably reduced in use effect due to overlarge or undersize local stress caused by agglomeration.
On the other hand, the modified zirconia fiber can be used as a toughening and reinforcing material, after modification, the toughening and reinforcing effect is further enhanced, and meanwhile, the modified zirconia fiber is tightly combined with a heat insulation slurry matrix, so that the stability of the slurry is improved.
The inventor finds that different methods for modifying zirconia fibers are different in improvement of wear resistance, the wear resistance can be remarkably improved by modifying the zirconia fibers with the sol containing graphene prepared by the invention, and the zirconia fibers cannot be modified with the graphene or the sol singly, that is, the wear resistance of the modified zirconia fibers prepared by different modification methods is different in improvement of wear resistance, so that the modified zirconia fibers prepared by the modification methods have better effects compared with those prepared by other methods.
Preferably, the hydrofluoric acid aqueous solution is a hydrofluoric acid aqueous solution with a mass concentration of 1-5%.
As a preferable scheme, the ultrasonic treatment power is 300-600W, and the ultrasonic treatment time is 25-40 min.
The invention also provides a preparation method of the curtain wall with the heat insulation effect, which is used for preparing the curtain wall with the heat insulation effect and comprises the following steps:
s11, adding diatomite, modified zirconia fiber, fly ash, an opacifier, boron oxide, calcium silicate, fumed silica, mica powder, a silane coupling agent and deionized water into a ball mill, ball-milling for 2-8 h at the rotating speed of 600-1000 rpm, and sieving with a 100-300-mesh sieve to obtain heat insulation slurry;
s12, spraying the heat insulation slurry on an aluminum substrate, drying at 150-200 ℃, and then placing in a kiln to sinter at 550-580 ℃ for 30-60 min to obtain the curtain wall with the heat insulation effect.
As a preferable scheme, the spraying amount of the heat insulation slurry is 600-1000 g/m2。
The invention has the beneficial effects that: the thermal insulation layer is formed by spraying the thermal insulation material on the surface of the aluminum substrate, so that the thermal insulation effect is obviously improved, and the slurry taking the diatomite and the modified zirconia fiber as main materials and the fly ash, the opacifier, the boron oxide, the calcium silicate, the fumed silica, the mica powder and the silane coupling agent are used for assisting in obviously improving the wear resistance of the curtain wall on the premise of keeping the good thermal insulation effect. The modified zirconia fiber can be uniformly dispersed in the heat insulation slurry, the agglomeration effect cannot occur, the excessive or undersize local stress caused by the agglomeration phenomenon cannot be caused, the using effect of the curtain wall is obviously reduced, the modified zirconia fiber can be used as a toughening and reinforcing material, after modification, the toughening and reinforcing effect is further enhanced, and meanwhile, the modified zirconia fiber is tightly combined with the heat insulation slurry matrix, so that the stability of the slurry is improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the present invention, the parts are all parts by weight unless otherwise specified.
Example 1
A curtain wall with heat insulation effect comprises an aluminum substrate and a heat insulation layer, wherein the heat insulation layer is formed by spraying heat insulation slurry on the aluminum substrate, drying and sintering;
the heat insulation slurry is prepared from the following raw materials in parts by weight: 36 parts of diatomite, 18 parts of modified zirconia fiber, 6 parts of fly ash, 4 parts of an opacifier, 3 parts of boron oxide, 2 parts of calcium silicate, 1.5 parts of fumed silica, 1 part of mica powder, 0.5 part of a silane coupling agent KH550 and 28 parts of deionized water.
The opacifier is silicon carbide and titanium dioxide according to the weight ratio of 1: 1.
The preparation method of the modified zirconia fiber comprises the following steps:
s1, adding 5 parts by weight of vinyltriethoxysilane, 5 parts by weight of tetraethoxysilane and 30 parts by weight of propylene glycol into 60 parts by weight of deionized water, uniformly dispersing, adding 5 parts by weight of hydrofluoric acid aqueous solution with the mass concentration of 4%, and stirring at the rotating speed of 500rpm for 40min to obtain sol;
s2, adding 15 parts by weight of graphene into 32.5 parts by weight of absolute ethyl alcohol, uniformly dispersing, adding 2 parts by weight of hexadecyl trimethyl ammonium bromide and 0.5 part by weight of hexadecyl trimethoxy silane, and stirring at the rotating speed of 500rpm for 60min to obtain a graphene mixed solution;
s3, dripping 4 parts by weight of graphene mixed solution into 10 parts by weight of sol, and stirring at the rotating speed of 200rpm for 50min to obtain a modified solution;
s4, adding 4 parts by weight of zirconia fiber into 10 parts by weight of modification solution, soaking for 5h, performing ultrasonic treatment at 400W for 30min, and drying to constant weight to obtain a precursor;
and S5, calcining the precursor at 650 ℃ for 60min, calcining at 520 ℃ for 40min, and cooling to obtain the modified zirconia fiber.
The preparation method of the curtain wall with the heat insulation effect comprises the following steps:
s11, adding diatomite, modified zirconia fiber, fly ash, an opacifier, boron oxide, calcium silicate, fumed silica, mica powder, a silane coupling agent and deionized water into a ball mill, ball-milling at the rotating speed of 800rpm for 7 hours, and sieving with a 200-mesh sieve to obtain heat insulation slurry;
s12, spraying heat insulation slurry on the aluminum substrate, wherein the spraying amount of the heat insulation slurry is 800g/m2Drying at 180 ℃, and then placing in a kiln to sinter for 50min at 560 ℃ to obtain the curtain wall with the heat insulation effect.
Example 2
A curtain wall with heat insulation effect comprises an aluminum substrate and a heat insulation layer, wherein the heat insulation layer is formed by spraying heat insulation slurry on the aluminum substrate, drying and sintering;
the heat insulation slurry is prepared from the following raw materials in parts by weight: 40 parts of diatomite, 12 parts of modified zirconia fiber, 9 parts of fly ash, 2 parts of an opacifier, 4 parts of boron oxide, 1 part of calcium silicate, 2 parts of fumed silica, 0.5 part of mica powder, 0.8 part of a silane coupling agent KH540 and 28.7 parts of deionized water.
The opacifier is silicon carbide and titanium dioxide according to the weight ratio of 1: 1.
The preparation method of the modified zirconia fiber comprises the following steps:
s1, adding 4 parts by weight of vinyltriethoxysilane, 6 parts by weight of tetraethoxysilane and 25 parts by weight of propylene glycol into 60 parts by weight of deionized water, uniformly dispersing, adding 4 parts by weight of hydrofluoric acid aqueous solution with the mass concentration of 5%, and stirring at the rotating speed of 500rpm for 40min to obtain sol;
s2, adding 12 parts by weight of graphene into 34.8 parts by weight of absolute ethyl alcohol, uniformly dispersing, adding 3 parts by weight of hexadecyl trimethyl ammonium bromide and 0.2 part by weight of hexadecyl trimethoxy silane, and stirring at the rotating speed of 500rpm for 60min to obtain a graphene mixed solution;
s3, dripping 5 parts by weight of graphene mixed solution into 10 parts by weight of sol, and stirring at the rotating speed of 500rpm for 30min to obtain a modified solution;
s4, adding 4 parts by weight of zirconia fiber into 10 parts by weight of modification solution, soaking for 5h, performing ultrasonic treatment at 500W for 25min, and drying to constant weight to obtain a precursor;
and S5, calcining the precursor at 680 ℃ for 60min, calcining at 520 ℃ for 50min, and cooling to obtain the modified zirconia fiber.
The preparation method of the curtain wall with the heat insulation effect comprises the following steps:
s11, adding diatomite, modified zirconia fiber, fly ash, an opacifier, boron oxide, calcium silicate, fumed silica, mica powder, a silane coupling agent and deionized water into a ball mill, ball-milling at the rotating speed of 800rpm for 7 hours, and sieving with a 200-mesh sieve to obtain heat insulation slurry;
s12, spraying heat insulation slurry on the aluminum substrate, wherein the spraying amount of the heat insulation slurry is 800g/m2Drying at 180 ℃, and then placing in a kiln to sinter for 50min at 560 ℃ to obtain the curtain wall with the heat insulation effect.
Example 3
A curtain wall with heat insulation effect comprises an aluminum substrate and a heat insulation layer, wherein the heat insulation layer is formed by spraying heat insulation slurry on the aluminum substrate, drying and sintering;
the heat insulation slurry is prepared from the following raw materials in parts by weight: 35 parts of diatomite, 16 parts of modified zirconia fiber, 4 parts of fly ash, 6 parts of an opacifier, 1 part of boron oxide, 2.5 parts of calcium silicate, 1 part of fumed silica, 1.5 parts of mica powder, 0.2 part of a silane coupling agent KH550 and 32.8 parts of deionized water.
The opacifier is silicon carbide and titanium dioxide according to the weight ratio of 1: 1.
The preparation method of the modified zirconia fiber comprises the following steps:
s1, adding 6 parts by weight of vinyltriethoxysilane, 35 parts by weight of tetraethoxysilane and 55 parts by weight of propylene glycol into 55 parts by weight of deionized water, uniformly dispersing, adding 4 parts by weight of hydrofluoric acid aqueous solution with the mass concentration of 3%, and stirring at the rotating speed of 400rpm for 40min to obtain sol;
s2, adding 15 parts by weight of graphene into 50 parts by weight of absolute ethyl alcohol, uniformly dispersing, adding 1 part by weight of hexadecyl trimethyl ammonium bromide and 1 part by weight of hexadecyl trimethoxy silane, and stirring at the rotating speed of 600rpm for 50min to obtain a graphene mixed solution;
s3, dropping 3 parts by weight of graphene mixed solution into 10 parts by weight of sol, and stirring at the rotating speed of 600rpm for 20min to obtain a modified solution;
s4, adding 5 parts by weight of zirconia fiber into 12 parts by weight of modification solution, soaking for 3 hours, carrying out ultrasonic treatment for 30 minutes at 500W, and drying to constant weight to obtain a precursor;
and S5, calcining the precursor at 650 ℃ for 60min, calcining at 500 ℃ for 50min, and cooling to obtain the modified zirconia fiber.
The preparation method of the curtain wall with the heat insulation effect comprises the following steps:
s11, adding diatomite, modified zirconia fiber, fly ash, an opacifier, boron oxide, calcium silicate, fumed silica, mica powder, a silane coupling agent and deionized water into a ball mill, ball-milling at the rotating speed of 800rpm for 7 hours, and sieving with a 200-mesh sieve to obtain heat insulation slurry;
s12, spraying heat insulation slurry on the aluminum substrate, wherein the spraying amount of the heat insulation slurry is 800g/m2Drying at 180 ℃, and then placing in a kiln to sinter for 50min at 560 ℃ to obtain the curtain wall with the heat insulation effect.
Comparative example 1
Comparative example 1 differs from example 1 in that comparative example 1 does not contain the modified zirconia fiber, and the other is the same.
Comparative example 2
Comparative example 2 is different from example 1 in that comparative example 2 uses zirconia fiber instead of the modified zirconia fiber, and the others are the same.
Comparative example 3
Comparative example 3 is different from example 1 in that the modified zirconia fiber described in comparative example 3 is prepared by the same method as example 1.
In this comparative example, the zirconia fiber was treated directly with the sol.
The preparation method of the modified zirconia fiber comprises the following steps:
s1, adding 5 parts by weight of vinyltriethoxysilane, 5 parts by weight of tetraethoxysilane and 30 parts by weight of propylene glycol into 60 parts by weight of deionized water, uniformly dispersing, adding 5 parts by weight of hydrofluoric acid aqueous solution with the mass concentration of 4%, and stirring at the rotating speed of 500rpm for 40min to obtain sol;
s2, adding 4 parts by weight of zirconia fiber into 10 parts by weight of sol, soaking for 5h, performing ultrasonic treatment at 400W for 30min, and drying to constant weight to obtain a precursor;
and S3, calcining the precursor at 650 ℃ for 60min, calcining at 520 ℃ for 40min, and cooling to obtain the modified zirconia fiber.
Comparative example 4
Comparative example 4 is different from example 1 in that comparative example 4 shows a modified zirconia fiber prepared by a method different from that of example 1, and the other steps are the same.
The preparation method of the modified zirconia fiber comprises the following steps:
s1, adding 15 parts by weight of graphene into 32.5 parts by weight of absolute ethyl alcohol, uniformly dispersing, adding 2 parts by weight of hexadecyl trimethyl ammonium bromide and 0.5 part by weight of hexadecyl trimethoxy silane, and stirring at the rotating speed of 500rpm for 60min to obtain a graphene mixed solution;
s2, adding 4 parts by weight of zirconia fiber into 10 parts by weight of graphene mixed solution, soaking for 5 hours, performing ultrasonic treatment at 400W for 30min, and drying to constant weight to obtain a precursor;
and S3, calcining the precursor at 650 ℃ for 60min, calcining at 520 ℃ for 40min, and cooling to obtain the modified zirconia fiber.
To further demonstrate the effect of the present invention, the following test methods were provided:
1. abrasion resistance (test surface is insulation layer): abrasion resistance was tested by abrasion tester (5131, Taber, usa) at room temperature, test conditions: the grinding wheel CS-10 is subjected to 500g of load force, the cycle is performed for 500 times, the abrasion resistance of the coating is represented by testing the mass loss after the cycle, and the smaller the mass loss is, the better the scratch resistance of the coating is.
2. The heat transfer coefficient was measured using a TC3000E portable thermal conductivity meter.
TABLE 1 test results
As can be seen from Table 1, the curtain wall provided by the invention has a good heat insulation effect and a good wear-resistant effect.
Compared with the examples 1-3, the wear-resisting effect of the curtain wall can be influenced by different raw material ratios and preparation parameters of the modified zirconia fiber.
Compared with the comparative examples 1 to 4, the modified zirconia fiber provided by the invention has the advantages that the wear-resisting effect can be obviously improved, different modification methods are different in improvement of the wear-resisting effect, the wear-resisting effect can be obviously improved by modifying the zirconia fiber through the sol containing the graphene prepared by the invention, the effect cannot be achieved by singly modifying the zirconia fiber through the graphene or the sol, that is, the improvement of the wear-resisting effect of the modified zirconia fiber prepared by different modification methods is different, and the modified zirconia fiber prepared by the modification method provided by the invention has a better effect compared with the modified zirconia fiber prepared by other methods.
In light of the foregoing description of preferred embodiments according to the invention, it is clear that many changes and modifications can be made by the person skilled in the art without departing from the scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A curtain wall with a heat insulation effect is characterized by comprising an aluminum substrate and a heat insulation layer, wherein the heat insulation layer is formed by spraying heat insulation slurry on the aluminum substrate, drying and sintering;
the heat insulation slurry is prepared from the following raw materials in parts by weight: 25-40 parts of diatomite, 10-20 parts of modified zirconia fiber, 4-9 parts of fly ash, 2-6 parts of an opacifier, 1-4 parts of boron oxide, 1-2.5 parts of calcium silicate, 1-2 parts of fumed silica, 0.5-1.5 parts of mica powder, 0.2-0.8 part of a silane coupling agent and 20-35 parts of deionized water.
2. The curtain wall with the heat insulation effect as claimed in claim 1, wherein the heat insulation slurry is prepared from the following raw materials in parts by weight: 30-40 parts of diatomite, 12-20 parts of modified zirconia fiber, 4-7 parts of fly ash, 2-5 parts of an opacifier, 1.5-4 parts of boron oxide, 1.5-2.5 parts of calcium silicate, 1.2-2 parts of fumed silica, 0.5-1.2 parts of mica powder, 0.2-0.6 part of a silane coupling agent and 25-35 parts of deionized water.
3. The curtain wall with the heat insulation effect as claimed in claim 1, wherein the heat insulation slurry is prepared from the following raw materials in parts by weight: 36 parts of diatomite, 18 parts of modified zirconia fiber, 6 parts of fly ash, 4 parts of an opacifier, 3 parts of boron oxide, 2 parts of calcium silicate, 1.5 parts of fumed silica, 1 part of mica powder, 0.5 part of a silane coupling agent and 28 parts of deionized water.
4. The curtain wall with the heat insulation effect as claimed in claim 1, wherein the opacifier is silicon carbide and titanium dioxide in a weight ratio of 1: 0.5 to 2.
5. The curtain wall with the heat insulation effect as claimed in claim 1, wherein the silane coupling agent is one or more of silane coupling agent KH550, silane coupling agent KH540, silane coupling agent KH902, silane coupling agent KH554, silane coupling agent KH590, silane coupling agent KH602, silane coupling agent KH120 and silane coupling agent KH 270.
6. The curtain wall with the heat insulation effect as claimed in claim 1, wherein the modified zirconia fiber is prepared by the following steps:
s1, adding 2-8 parts by weight of vinyltriethoxysilane, 2-8 parts by weight of tetraethoxysilane and 20-40 parts by weight of propylene glycol into 40-80 parts by weight of deionized water, uniformly dispersing, adding 2-6 parts by weight of hydrofluoric acid aqueous solution, and uniformly stirring to obtain sol;
s2, adding 10-20 parts by weight of graphene into 30-50 parts by weight of absolute ethyl alcohol, uniformly dispersing, adding 1-4 parts by weight of hexadecyl trimethyl ammonium bromide and 0.2-1 part by weight of hexadecyl trimethoxy silane, and uniformly stirring to obtain a graphene mixed solution;
s3, dripping 2-6 parts by weight of graphene mixed solution into 4-12 parts by weight of sol, and uniformly stirring to obtain a modified solution;
s4, adding 2-5 parts by weight of zirconia fiber into 4-12 parts by weight of modification liquid, soaking for 2-6 hours, carrying out ultrasonic treatment, and drying to constant weight to obtain a precursor;
and S5, calcining the precursor at 600-700 ℃ for 40-80 min, calcining at 450-550 ℃ for 30-60 min, and cooling to obtain the modified zirconia fiber.
7. The curtain wall with the heat insulation effect as claimed in claim 6, wherein the hydrofluoric acid aqueous solution is 1-5% by mass.
8. The curtain wall with the heat insulation effect as claimed in claim 6, wherein the ultrasonic treatment power is 300-600W, and the ultrasonic treatment time is 25-40 min.
9. A method for preparing a curtain wall with a heat insulation effect, which is used for preparing the curtain wall with the heat insulation effect as claimed in any one of claims 1 to 8, and comprises the following steps:
s11, adding diatomite, modified zirconia fiber, fly ash, an opacifier, boron oxide, calcium silicate, fumed silica, mica powder, a silane coupling agent and deionized water into a ball mill, ball-milling for 2-8 h at the rotating speed of 600-1000 rpm, and sieving with a 100-300-mesh sieve to obtain heat insulation slurry;
s12, spraying the heat insulation slurry on an aluminum substrate, drying at 150-200 ℃, and then placing in a kiln to sinter at 550-580 ℃ for 30-60 min to obtain the curtain wall with the heat insulation effect.
10. The method for manufacturing a curtain wall with thermal insulation effect as claimed in claim 9, wherein the thermal insulation slurry is sprayed in an amount of600~1000g/m2。
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