CN114293366A - Radiation refrigeration finishing agent, radiation refrigeration fiber membrane, and preparation method and application thereof - Google Patents
Radiation refrigeration finishing agent, radiation refrigeration fiber membrane, and preparation method and application thereof Download PDFInfo
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- CN114293366A CN114293366A CN202111532375.9A CN202111532375A CN114293366A CN 114293366 A CN114293366 A CN 114293366A CN 202111532375 A CN202111532375 A CN 202111532375A CN 114293366 A CN114293366 A CN 114293366A
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- Prior art keywords
- radiation refrigeration
- radiation
- fiber membrane
- finish
- refrigeration
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- 230000005855 radiation Effects 0.000 title claims abstract description 202
- 238000005057 refrigeration Methods 0.000 title claims abstract description 190
- 239000000835 fiber Substances 0.000 title claims abstract description 139
- 239000012528 membrane Substances 0.000 title claims abstract description 106
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000002245 particle Substances 0.000 claims abstract description 48
- 239000011230 binding agent Substances 0.000 claims abstract description 31
- 239000002270 dispersing agent Substances 0.000 claims abstract description 22
- 238000001816 cooling Methods 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 32
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 23
- 239000004408 titanium dioxide Substances 0.000 claims description 16
- 238000001035 drying Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 9
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 8
- 239000004753 textile Substances 0.000 claims description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims description 6
- 229920002125 Sokalan® Polymers 0.000 claims description 5
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 5
- 239000004584 polyacrylic acid Substances 0.000 claims description 5
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 5
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 4
- 229920003189 Nylon 4,6 Polymers 0.000 claims description 4
- 229920002292 Nylon 6 Polymers 0.000 claims description 4
- 239000002033 PVDF binder Substances 0.000 claims description 4
- 239000004695 Polyether sulfone Substances 0.000 claims description 4
- 239000004642 Polyimide Substances 0.000 claims description 4
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 4
- 229920002492 poly(sulfone) Polymers 0.000 claims description 4
- 229920006393 polyether sulfone Polymers 0.000 claims description 4
- 229920001721 polyimide Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 4
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 4
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 4
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 3
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- 239000005083 Zinc sulfide Substances 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- -1 polyoxyethylene Polymers 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- JZVZOOVZQIIUGY-UHFFFAOYSA-M sodium;tridecanoate Chemical compound [Na+].CCCCCCCCCCCCC([O-])=O JZVZOOVZQIIUGY-UHFFFAOYSA-M 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- 229910052984 zinc sulfide Inorganic materials 0.000 claims description 3
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 claims description 3
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 3
- 239000011247 coating layer Substances 0.000 claims 2
- 239000000454 talc Substances 0.000 claims 1
- 229910052623 talc Inorganic materials 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 238000002310 reflectometry Methods 0.000 abstract description 3
- 238000010041 electrostatic spinning Methods 0.000 description 19
- 230000000052 comparative effect Effects 0.000 description 13
- 238000001000 micrograph Methods 0.000 description 10
- 238000002834 transmittance Methods 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 9
- 238000000576 coating method Methods 0.000 description 9
- 239000002121 nanofiber Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 239000004744 fabric Substances 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 3
- 238000005411 Van der Waals force Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001523 electrospinning Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
Images
Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/46—Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic Table; Titanates; Zirconates; Stannates; Plumbates
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4282—Addition polymers
- D04H1/43—Acrylonitrile series
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/728—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/51—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
- D06M11/55—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts
- D06M11/56—Sulfates or thiosulfates other than of elements of Groups 3 or 13 of the Periodic Table
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
- D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/327—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof
- D06M15/333—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof of vinyl acetate; Polyvinylalcohol
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B23/00—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect
- F25B23/003—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect using selective radiation effect
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/26—Polymers or copolymers of unsaturated carboxylic acids or derivatives thereof
- D06M2101/28—Acrylonitrile; Methacrylonitrile
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The invention relates to a radiation refrigeration finishing agent, a radiation refrigeration fiber membrane, and a preparation method and application thereof. The radiation refrigeration finishing agent comprises radiation refrigeration particles, a binder, a dispersing agent and water, and the viscosity of the radiation refrigeration finishing agent is 10CPS-300CPS at 25 ℃, wherein the sunlight reflectivity of the radiation refrigeration particles in a wave band of 0.3 mu m-2.5 mu m is more than or equal to 70%, and the atmospheric window emissivity in a wave band of 8 mu m-13 mu m is more than or equal to 80%; the radiation refrigeration fiber membrane prepared by the radiation refrigeration finishing agent has excellent full-wave band sunlight protection and zero-energy-consumption passive cooling effects, and meanwhile, the mechanical property is excellent, and radiation refrigeration particles in the radiation refrigeration fiber membrane are not easy to fall off, so that the pollution to the environment is avoided, and the service life of the radiation refrigeration fiber membrane is prolonged.
Description
Technical Field
The invention relates to the technical field of materials, in particular to a radiation refrigeration finishing agent, a radiation refrigeration fiber film, and a preparation method and application thereof.
Background
The radiation refrigeration fiber membrane can achieve the purpose of cooling without consuming energy, can be used for preparing various textiles with cooling requirements, and the traditional radiation refrigeration fiber membrane preparation methods mainly comprise two methods, namely adding radiation refrigeration particles into an electrostatic spinning solution, however, the preparation method can cause the reduction of the mechanical property of the fiber membrane; another method is to form radiation refrigeration particles on the outer surface of the fiber membrane to form a radiation refrigeration particle layer, however, this preparation method is difficult to obtain a uniform radiation refrigeration particle layer, and the radiation refrigeration particles are easy to fall off, which not only reduces the radiation refrigeration effect, but also causes environmental pollution.
Disclosure of Invention
Therefore, it is necessary to provide a radiation refrigeration finishing agent, a radiation refrigeration fiber membrane, and a preparation method and an application thereof, in order to solve the above problems, the radiation refrigeration fiber membrane has excellent full-wave-band sunlight protection and zero-energy-consumption passive cooling effects, and simultaneously has excellent mechanical properties, and radiation refrigeration particles on the radiation refrigeration fiber membrane are not easy to fall off, so that not only is environmental pollution avoided, but also the service life of the radiation refrigeration fiber membrane is prolonged.
The invention provides a radiation refrigeration finishing agent, which comprises radiation refrigeration particles, a binder, a dispersing agent and water, wherein the viscosity of the radiation refrigeration finishing agent is 10CPS-300CPS at 25 ℃, the solar reflectance of the radiation refrigeration particles in a wave band of 0.3-2.5 mu m is greater than or equal to 70%, and the atmospheric window emissivity in a wave band of 8-13 mu m is greater than or equal to 80%.
In one embodiment, the radiation refrigeration particles have a particle size of from 2nm to 1000 nm.
In one embodiment, the mass fraction of the radiation refrigeration particles in the radiation refrigeration finish is from 0.1% to 50%.
In one embodiment, the radiation refrigerating particles comprise at least one of titanium dioxide, silicon dioxide, barium sulfate, pearl powder, heavy calcium powder, aluminum oxide, zinc oxide, zirconium oxide, cerium oxide, lanthanum oxide, talcum powder, zinc sulfide, ceramic powder or magnesium oxide.
In one embodiment, the mass ratio of the radiation refrigerating particles to the binder is 1:5 to 2.5: 1.
In one embodiment, the binder comprises at least one of polyurethane, aqueous polyacrylic acid, polyoxyethylene, polyvinyl alcohol, or polyethylene glycol.
In one embodiment, the dispersant comprises at least one of sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, sodium dodecyl carboxylate, or cetyl trimethyl ammonium bromide, and the mass fraction of the dispersant in the radiant refrigeration finish is less than or equal to 2%.
The radiation refrigeration fiber membrane comprises a fiber membrane and a radiation refrigeration coating arranged on the surface of the fiber in the fiber membrane, wherein the radiation refrigeration coating is formed by drying the radiation refrigeration finishing agent.
In one embodiment, the material of the fibrous membrane comprises at least one of polyacrylonitrile, polyvinyl alcohol, polyvinylidene fluoride, polysulfone, polyethersulfone, polyvinylpyrrolidone, nylon 4, 6, nylon 6, or polyimide.
The preparation method of the radiation refrigeration fiber membrane comprises the following steps
Providing a fibrous membrane; and
and forming the radiation refrigeration finishing agent on the fiber membrane by using a padding method, and drying to obtain the radiation refrigeration fiber membrane.
A textile is made of the radiation refrigeration fiber membrane.
Because the viscosity of the radiation refrigeration finishing agent is 10CPS-300CPS at 25 ℃, when the radiation refrigeration finishing agent is used for preparing the radiation refrigeration fiber film, the surface tension and the internal friction force in the radiation refrigeration finishing agent are both smaller than the Van der Waals force of the binding agent on the fiber surface in the fiber film, so that the binding agent can be uniformly formed on the fiber surface, and thus, the radiation refrigeration particles can be uniformly formed on the fiber surface by virtue of the action of the binding agent, and the radiation refrigeration coating with uniform thickness is obtained. Therefore, the mechanical property of the radiation refrigeration fiber membrane can not be influenced by the radiation refrigeration particles, and the radiation refrigeration particles in the radiation refrigeration fiber membrane are not easy to fall off, so that the service life of the radiation refrigeration fiber membrane can be prolonged, and the radiation refrigeration fiber membrane can be better applied to weaving of various fabrics.
Meanwhile, the sunlight reflectivity of the radiation refrigeration particles in a wave band of 0.3-2.5 mu m is more than or equal to 70%, and the atmospheric window emissivity in a wave band of 8-13 mu m is more than or equal to 80%, so that the solar light transmittance of the radiation refrigeration fiber membrane in the wave band of 0.3-0.4 mu m is less than or equal to 1%, the solar light transmittance in the wave band of 0.3-2.5 mu m is less than or equal to 12%, and the atmospheric window emissivity in the wave band of 8-13 mu m is more than or equal to 85%, and the radiation refrigeration fiber membrane has excellent full-wave band sunlight protection and zero-energy consumption passive cooling effect.
Drawings
Fig. 1 is a schematic diagram of a method for preparing a radiation refrigeration fiber membrane provided by the invention, wherein 10 represents a radiation refrigeration finishing agent, and 20 represents a fiber membrane;
FIG. 2 is a scanning electron microscope image of a polyacrylonitrile fiber membrane obtained in comparative example 1 and a radiation refrigeration fiber membrane obtained in examples 1 to 5, wherein A represents the scanning electron microscope image of the polyacrylonitrile fiber membrane in comparative example 1, B represents the scanning electron microscope image of the radiation refrigeration fiber membrane in example 1, C represents the scanning electron microscope image of the radiation refrigeration fiber membrane in example 2, D represents the scanning electron microscope image of the radiation refrigeration fiber membrane in example 3, E represents the scanning electron microscope image of the radiation refrigeration fiber membrane in example 4, and F represents the scanning electron microscope image of the radiation refrigeration fiber membrane in example 5;
FIG. 3 is a transmission electron microscope image of the fibers of the radiation refrigeration fiber membrane obtained in example 3 under different magnifications.
Detailed Description
The radiation refrigeration finishing agent, the radiation refrigeration fiber film and the preparation method and application thereof provided by the invention are further explained below.
The radiation refrigeration finishing agent provided by the invention is mainly used for padding a fiber film, so that a radiation refrigeration coating is coaxially formed on the surface of fibers in the fiber film, and the radiation refrigeration fiber film is prepared.
The radiation refrigeration finishing agent provided by the invention comprises radiation refrigeration particles, a binder, a dispersing agent and water, and the viscosity of the radiation refrigeration finishing agent is 10CPS-300CPS at 25 ℃.
Wherein, in order to enable the radiation refrigeration finishing agent to form a uniform radiation refrigeration coating on the fiber surface of the fiber membrane, the binder comprises at least one of polyurethane, water-based polyacrylic acid, polyoxyethylene, polyvinyl alcohol or polyethylene glycol.
In one embodiment, the radiation refrigeration particle includes at least one of titanium dioxide, silicon dioxide, barium sulfate, pearl powder, heavy calcium powder, aluminum oxide, zinc oxide, zirconium oxide, cerium oxide, lanthanum oxide, talcum powder, zinc sulfide, ceramic powder or magnesium oxide, and the shape of the radiation refrigeration particle is not limited, and may be spherical, ellipsoidal or other geometric shapes, preferably spherical or ellipsoidal, and the particle size is 2nm to 1000nm, more preferably 5nm to 500nm, and still more preferably 10nm to 100 nm.
In order to enable the radiation refrigeration particles to be uniformly and stably dispersed in the radiation refrigeration finishing agent, the mass fraction of the radiation refrigeration particles in the radiation refrigeration finishing agent is 0.1-50%, more preferably 1-40%, and even more preferably 2-20%; the mass ratio of the radiation refrigeration particles to the binder is 1:40-5:1, and more preferably 1:5-2.5: 1.
The dispersing agent can enable the radiation refrigeration particles to be more uniformly dispersed in the radiation refrigeration finishing agent on one hand, and prevent the radiation refrigeration particles from settling, and on the other hand, can assist in regulating and controlling the viscosity of the radiation refrigeration finishing agent. In one embodiment, the dispersant comprises at least one of sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, sodium dodecyl carboxylate, or cetyl trimethyl ammonium bromide, and the mass fraction of the dispersant in the radiation refrigeration finish is less than or equal to 2%, and more preferably 1% to 2%.
The present invention can maintain the viscosity of the radiation refrigeration finish at 25 ℃ within a range of 10CPS to 300CPS, preferably, maintain the viscosity of the radiation refrigeration finish at 25 ℃ within a range of 100CPS to 280CPS, by one or a combination of more of the conditions of selection of the type of binder, control of the amount of binder, selection of the type of dispersant, control of the amount of dispersant, or control of the amount of radiation refrigeration particles.
Because the viscosity of the radiation refrigeration finishing agent is 10CPS-300CPS at 25 ℃, when the radiation refrigeration finishing agent is used for preparing a radiation refrigeration fiber membrane, the surface tension and the internal friction force in the radiation refrigeration finishing agent are both smaller than the Van der Waals force of a binder on the fiber surface of the binder in the fiber membrane, so that the binder can be uniformly formed on the fiber surface in the dipping process, and therefore, in the drying process, the binder is dried to form a membrane, and radiation refrigeration particles are uniformly fixed on the fiber surface to obtain a radiation refrigeration coating with uniform thickness.
Therefore, the mechanical property of the radiation refrigeration fiber membrane cannot be influenced by the radiation refrigeration particles, and the radiation refrigeration particles in the radiation refrigeration fiber membrane are not easy to fall off, so that the service life of the radiation refrigeration fiber membrane can be prolonged, and the radiation refrigeration fiber membrane can be better applied to weaving of various fabrics.
In addition, because the solar reflectance of the radiation refrigeration particles in a wave band of 0.3-2.5 μm is greater than or equal to 70%, and the atmospheric window emissivity in a wave band of 8-13 μm is greater than or equal to 80%, the solar transmittance of the radiation refrigeration fiber membrane in a wave band of 0.3-0.4 μm is less than or equal to 1%, the solar transmittance in a wave band of 0.3-2.5 μm is less than or equal to 12%, and the atmospheric window emissivity in a wave band of 8-13 μm is greater than or equal to 85%, the radiation refrigeration fiber membrane has excellent full-wave band solar protection and zero-energy passive cooling effect.
The solar transmittance in the wavelength range of 0.3 μm to 0.4 μm means a ratio of an ultraviolet light flux transmitted through a material to an ultraviolet light flux projected on a surface of the material; the solar transmittance in the wavelength band of 0.3 μm to 2.5 μm refers to a ratio of a solar light flux transmitted through a material to a solar light flux projected on a surface of the material.
As shown in fig. 1, a schematic diagram of a preparation method of a radiation refrigeration fiber membrane provided by the present invention specifically includes the following steps:
s1, providing a fibrous membrane 20; and
and S2, forming the radiation refrigeration finishing agent 10 on the fiber film 20 by using a padding method, and drying to obtain the radiation refrigeration fiber film.
In step S1, the fiber membrane 20 may include at least one of common fibers or nanofibers, and the fiber membrane 20 is preferably a fiber membrane 20 made of nanofibers, considering that the fiber membrane 20 made of nanofibers has a higher specific surface area and a higher liquid carrying rate during the dipping process.
In one embodiment, the fiber membrane 20 made of nanofibers can be directly obtained by electrospinning, and specifically includes the following steps:
providing an electrostatic spinning solution, wherein a precursor of the fiber is dissolved in the electrostatic spinning solution; and
the electrostatic spinning solution is subjected to electrostatic spinning, nanofibers are supported by the substrate, and the nanofibers form the fiber membrane 20.
It will be appreciated that the substrate functions to receive the electrospun nanofibers and the nanofiber forming the fibrous membrane 20, the fibrous membrane 20 further serving as a dip.
In one embodiment, the precursor of the fiber comprises at least one of polyacrylonitrile, polyvinyl alcohol, polyvinylidene fluoride, polysulfone, polyethersulfone, polyvinylpyrrolidone, nylon 4, 6), nylon 6 or polyimide, and the mass fraction of the precursor of the fiber in the electrostatic spinning solution is 3% -20%.
In step S2, since the fiber film 20 has a high specific surface area, compared to the conventional fabric, the fiber film 20 has more voids and a higher liquid carrying rate, which is 40% to 800%, preferably 60% to 600%, and more preferably 80% to 600%, on one hand, it is beneficial to form a more uniform radiation cooling layer, and on the other hand, the fiber film 20 is more widely applicable, for example, the fiber film 20 with hydrophobic property can also form a radiation cooling layer by padding.
In one embodiment, the padding is selected from one-dip-one-pad, two-dip-two-pad, or multiple-dip-multiple-pad, and is adjusted according to the hydrophilicity of the fiber membrane 20 and the liquid carrying rate of the fiber membrane 20 during padding, and when the liquid carrying rate is less than or equal to 100%, two-dip-two-pad or multiple-dip-multiple-pad may be used, and when the liquid carrying rate is greater than 100%, one-dip-one-pad may be used.
During padding, the radiation refrigerating particles may be uniformly formed on the fiber surface of the fiber film 20 by the binder.
In one embodiment, the drying step is performed at a temperature of 30 to 150 ℃ in order to allow the radiation refrigerating particles to be firmly bonded to the surface of the fiber in the fiber membrane 20 by the binder.
The preparation method of the radiation refrigeration fiber membrane provided by the invention realizes simple preparation of the radiation refrigeration fiber membrane, and the radiation refrigeration fiber membrane prepared by the preparation method has the advantages of environmental protection, long service life, excellent full-wave-band sunlight protection, zero-energy-consumption passive cooling effect and excellent mechanical property.
The invention also provides a radiation refrigeration fiber membrane, which comprises a fiber membrane 20 and a radiation refrigeration coating arranged on the surface of the fiber in the fiber membrane 20, wherein the radiation refrigeration coating is formed by drying the radiation refrigeration finishing agent 10, and the radiation refrigeration fiber membrane can be prepared by the preparation method of the radiation refrigeration fiber membrane.
In one embodiment, the material of the fibrous membrane 20 includes at least one of polyacrylonitrile, polyvinyl alcohol, polyvinylidene fluoride, polysulfone, polyethersulfone, polyvinylpyrrolidone, nylon 4, 6, nylon 6, or polyimide.
According to the radiation refrigeration fiber membrane provided by the invention, radiation refrigeration particles can be uniformly formed on the fiber surface of the fiber membrane 20 under the action of the binder, so that the mechanical property of the radiation refrigeration fiber membrane is not influenced by the radiation refrigeration particles, the radiation refrigeration fiber membrane has excellent mechanical property, the radiation refrigeration particles in the radiation refrigeration fiber membrane are not easy to fall off, the pollution to the environment is avoided, the service life of the radiation refrigeration fiber membrane is prolonged, in addition, the radiation refrigeration fiber membrane also has excellent sunlight protection and zero energy consumption passive cooling effect, the solar light transmittance in a wave band of 0.3 mu m-0.4 mu m is less than or equal to 1%, the solar light transmittance in a wave band of 0.3 mu m-2.5 mu m is less than or equal to 12%, and the atmospheric window emissivity in a wave band of 8 mu m-13 mu m is greater than or equal to 85%.
Furthermore, when the radiation refrigeration fiber membrane is used for preparing textiles such as clothes, curtains, tents, umbrellas, hats, headkerchief, car covers, canopies and the like with cooling requirements, the textiles are comfortable and breathable, meanwhile, cooling can be achieved through the textiles, comfort is improved, energy is not consumed, and the fabric is energy-saving and environment-friendly.
Therefore, the invention also provides a textile which is made of the radiation refrigeration fiber membrane and has excellent full-wave-band sunlight protection and zero-energy-consumption passive cooling effects.
Hereinafter, the radiation refrigeration finishing agent, the radiation refrigeration fiber film, the preparation method and the application thereof will be further described by the following specific examples.
Example 1
Dissolving polyacrylonitrile in water to obtain an electrostatic spinning solution, wherein the mass fraction of polyacrylonitrile in the electrostatic spinning solution is 6%, and obtaining a polyacrylonitrile fiber membrane 20 from the electrostatic spinning solution by an electrostatic spinning technology, wherein the diameter of polyacrylonitrile fibers is nano-scale.
Dispersing titanium dioxide with the particle size of 50nm, a sodium dodecyl benzene sulfonate dispersing agent and a water-based polyacrylic acid binder in water to obtain a radiation refrigeration finishing agent 10, wherein the viscosity of the radiation refrigeration finishing agent 10 is 60CPS at 25 ℃, the sunlight reflectivity of the titanium dioxide in a wave band of 0.3-2.5 microns is 87%, the atmospheric window emissivity in a wave band of 8-13 microns is 80%, the mass fraction of the titanium dioxide in the radiation refrigeration finishing agent 10 is 0.5%, the mass fraction of the sodium dodecyl benzene sulfonate dispersing agent in the radiation refrigeration finishing agent 10 is 1.4%, and the mass fraction of the water-based polyacrylic acid binder in the radiation refrigeration finishing agent 10 is 20%.
And (2) soaking the polyacrylonitrile fiber membrane 20 in the radiation refrigeration finishing agent 10, arranging the radiation refrigeration finishing agent 10 on the surface of polyacrylonitrile fibers in a soaking and rolling mode, wherein the liquid carrying rate of the soaked and rolled polyacrylonitrile fiber membrane 20 is 220%, and drying the soaked and rolled polyacrylonitrile fiber membrane 20 at 80 ℃ to form a radiation refrigeration coating arranged on the fiber surface in the polyacrylonitrile fiber membrane 20, so as to obtain the radiation refrigeration fiber membrane.
Example 2
Example 2 was carried out with reference to example 1, except that the mass fraction of titanium dioxide in the radiation refrigeration finish 10 was 1% and the viscosity of the radiation refrigeration finish 10 at 25 ℃ was 76 CPS.
Example 3
Example 3 was carried out with reference to example 1, except that the mass fraction of titanium dioxide in the radiation refrigeration finish 10 was 5%, and the viscosity of the radiation refrigeration finish 10 at 25 ℃ was 100 CPS.
Example 4
Example 4 was carried out with reference to example 1, except that the mass fraction of titanium dioxide in the radiation refrigeration finish 10 was 10%, and the viscosity of the radiation refrigeration finish 10 at 25 ℃ was 140 CPS.
Example 5
Example 5 was carried out with reference to example 1, except that the mass fraction of titanium dioxide in the radiation refrigeration finish 10 was 20%, and the viscosity of the radiation refrigeration finish 10 at 25 ℃ was 230 CPS.
Example 6
Example 6 was conducted with reference to example 1 except that the mass fraction of titanium dioxide in the radiation refrigeration finish 10 was 50%, and the viscosity of the radiation refrigeration finish 10 was 276CPS at 25 ℃.
Example 7
Example 7 was carried out as in example 3, except that titanium dioxide was replaced with silica having a solar reflectance of 70.4% in the 0.3 μm to 2.5 μm band, an atmospheric window emissivity of 80.2% in the 8 μm to 13 μm band, and a viscosity of the radiation refrigeration finish 10 of 95CPS at 25 ℃.
Example 8
Example 8 reference is made to example 3 with the exception that titanium dioxide is replaced with barium sulfate having a solar reflectance of 88.8% in the 0.3 μm to 2.5 μm band, an atmospheric window emissivity of 90.1% in the 8 μm to 13 μm band, and a viscosity of the radiant refrigerant finish 10 of 110CPS at 25 ℃.
Example 9
Example 9 was conducted with reference to example 3 except that the mass fraction of the cetyltrimethylammonium bromide dispersant in the radiation refrigeration finish 10 was 1.6% and the viscosity of the radiation refrigeration finish 10 was 114 CPS.
Example 10
Example 10 was conducted with reference to example 3, except that the mass fraction of the sodium lauryl sulfate dispersant in the radiation refrigeration finish 10 was 2%, and the viscosity of the radiation refrigeration finish 10 was 120 CPS.
Example 11
Example 11 was carried out with reference to example 3, except that the mass fraction of polyvinyl alcohol binder in the radiation cold finish 10 was 6% and the viscosity of the radiation cold finish 10 was 110 CPS.
Example 12
Example 12 was conducted with reference to example 3, except that the mass fraction of the polyurethane emulsion binder in the radiation refrigeration finish 10 was 7%, and the viscosity of the radiation refrigeration finish 10 was 125 CPS.
Example 13
Example 13 was conducted with reference to example 3, except that no dispersant was included in the radiation refrigeration finish 10 and the viscosity of the radiation refrigeration finish 10 was 69 CPS.
Comparative example 1
Dissolving polyacrylonitrile in water to obtain an electrostatic spinning solution, wherein the mass fraction of polyacrylonitrile in the electrostatic spinning solution is 20%, and obtaining the polyacrylonitrile fiber membrane 20 from the electrostatic spinning solution by an electrostatic spinning technology.
As shown in fig. 2, which is a scanning electron microscope image of the polyacrylonitrile fiber membrane 20 obtained in comparative example 1 and the radiation refrigeration fiber membranes obtained in examples 1 to 5, it can be seen from fig. 2 that the polyacrylonitrile fiber structure in the radiation refrigeration fiber membranes obtained in examples 1 to 5 is complete.
As shown in fig. 3, which is a transmission electron microscope image of the fibers in the radiation refrigeration fiber film obtained in example 3 under different magnifications, it can be seen from fig. 3 that titanium dioxide is uniformly formed on the surfaces of the fibers.
Comparative example 2
Comparative example 2 was conducted with reference to example 3 except that no binder was included in the radiation refrigeration finish 10 and the viscosity of the radiation refrigeration finish 10 was 4 CPS.
Comparative example 3
Comparative example 3 the procedure of example 3 was followed except that the dispersant was replaced with sodium tripolyphosphate and the binder was replaced with phenol-formaldehyde-butyronitrile, the mass fraction of the dispersant in the radiation refrigeration finish 10 was 0.2%, the mass fraction of the binder in the radiation refrigeration finish 10 was 0.01%, and the viscosity of the radiation refrigeration finish 10 was 5 CPS.
Comparative example 4
Comparative example 4 was conducted with reference to example 3 except that the dispersant was replaced with an ammonium polyacrylate salt and the binder was replaced with an epoxy resin, the mass fraction of the dispersant in the radiation refrigeration finish 10 was 5.5%, the mass fraction of the binder in the radiation refrigeration finish 10 was 77%, and the viscosity of the radiation refrigeration finish 10 was 350 CPS.
Comparative example 5
Adding polyacrylonitrile and titanium dioxide with the particle size of 500nm into water to obtain an electrostatic spinning solution, wherein the mass fraction of the polyacrylonitrile in the electrostatic spinning solution is 18%, the mass fraction of the titanium dioxide in the electrostatic spinning solution is 20%, and obtaining the radiation refrigeration fiber membrane from the electrostatic spinning solution by an electrostatic spinning technology.
The optical properties of the radiation refrigerating fiber membranes obtained in examples 1 to 13, the polyacrylonitrile fiber membrane 20 obtained in comparative example 1, and the radiation refrigerating fiber membranes obtained in comparative examples 2 to 5 above were tested, the test standards are as follows, and the test results are shown in tables 1 to 2.
Solar reflectance (reflectance in the 0.3 μm-2.5 μm band), visible reflectance (reflectance in the 0.4 μm-0.78 μm band), near infrared reflectance (reflectance in the 0.78 μm-2.5 μm band): according to the specification of 6.4 in JG/T235-2014;
solar transmittance (reflectance in the 0.3 μm-2.5 μm band): testing was performed with reference to the provisions of GB/T2680;
ultraviolet transmittance (reflectance in the 0.3 μm-0.4 μm band): testing was performed with reference to the provisions of GB/T2680;
an atmospheric window emissivity greater than or equal to 85% in the 8 μm-13 μm band: tests were performed with reference to the specification of T/ZZB 2304-2021;
tensile strength: the tests were carried out with reference to the provisions of GB/T1040.1 and GB/T1040.3.
TABLE 1
TABLE 2
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (11)
1. A radiation refrigeration finish, characterized in that it comprises radiation refrigeration particles, a binder, a dispersant and water, the viscosity of the radiation refrigeration finish being 10CPS to 300CPS at 25 ℃, wherein the solar reflectance of the radiation refrigeration particles in the 0.3 μm to 2.5 μm band is 70% or more and the atmospheric window emissivity in the 8 μm to 13 μm band is 80% or more.
2. A radiation-cooling finish according to claim 1 wherein the radiation-cooling particles have a particle size of from 2nm to 1000 nm.
3. The radiant cooling finish of claim 1 wherein the mass fraction of the radiant cooling particles in the radiant cooling finish is from 0.1% to 50%.
4. The radiation-cooling finish of claim 1, wherein the radiation-cooling particles comprise at least one of titanium dioxide, silicon dioxide, barium sulfate, pearl powder, heavy calcium powder, aluminum oxide, zinc oxide, zirconium oxide, cerium oxide, lanthanum oxide, talc, zinc sulfide, ceramic powder, or magnesium oxide.
5. A radiation refrigerating finish according to any one of claims 1 to 4 characterised in that the mass ratio of the radiation refrigerating particles to the binder is from 1:5 to 2.5: 1.
6. A radiation-curable finish according to any one of claims 1 to 4, wherein said binder comprises at least one of polyurethane, aqueous polyacrylic acid, polyoxyethylene, polyvinyl alcohol or polyethylene glycol.
7. A radiation refrigeration finish according to any one of claims 1 to 4, characterized in that the dispersant comprises at least one of sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, sodium dodecyl carboxylate or cetyl trimethyl ammonium bromide, and the mass fraction of the dispersant in the radiation refrigeration finish is less than or equal to 2%.
8. A radiation refrigeration fiber membrane, characterized in that the radiation refrigeration fiber membrane comprises a fiber membrane and a radiation refrigeration coating layer arranged on the fiber surface in the fiber membrane, wherein the radiation refrigeration coating layer is formed by drying the radiation refrigeration finishing agent according to any one of claims 1-7.
9. The radiant cooling fiber membrane as claimed in claim 8, wherein the material of the fiber membrane comprises at least one of polyacrylonitrile, polyvinyl alcohol, polyvinylidene fluoride, polysulfone, polyethersulfone, polyvinylpyrrolidone, nylon 4, 6, nylon 6, or polyimide.
10. The preparation method of the radiation refrigeration fiber membrane is characterized by comprising the following steps
Providing a fibrous membrane; and
forming the radiation refrigeration finishing agent according to any one of claims 1 to 7 on the fiber membrane by using a padding method, and drying to obtain the radiation refrigeration fiber membrane.
11. A textile article, characterized in that it is made of a radiation refrigerating fibre membrane according to claim 8 or 9.
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