CN113136724B - Radiation refrigeration fabric - Google Patents
Radiation refrigeration fabric Download PDFInfo
- Publication number
- CN113136724B CN113136724B CN202010207521.XA CN202010207521A CN113136724B CN 113136724 B CN113136724 B CN 113136724B CN 202010207521 A CN202010207521 A CN 202010207521A CN 113136724 B CN113136724 B CN 113136724B
- Authority
- CN
- China
- Prior art keywords
- fabric
- radiation refrigeration
- radiation
- nano
- refractive index
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004744 fabric Substances 0.000 title claims abstract description 70
- 238000005057 refrigeration Methods 0.000 title claims abstract description 39
- 230000005855 radiation Effects 0.000 title claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000000835 fiber Substances 0.000 claims abstract description 14
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 239000002105 nanoparticle Substances 0.000 claims description 7
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 6
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 6
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 150000002191 fatty alcohols Chemical class 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000002310 reflectometry Methods 0.000 abstract description 13
- 229920000742 Cotton Polymers 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 15
- 230000000694 effects Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 238000001878 scanning electron micrograph Methods 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 1
- 229910000661 Mercury cadmium telluride Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 241000656145 Thyrsites atun Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- MCMSPRNYOJJPIZ-UHFFFAOYSA-N cadmium;mercury;tellurium Chemical compound [Cd]=[Te]=[Hg] MCMSPRNYOJJPIZ-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000035597 cooling sensation Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910000449 hafnium oxide Inorganic materials 0.000 description 1
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000001392 ultraviolet--visible--near infrared spectroscopy Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Images
Classifications
-
- 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
- D06M11/45—Oxides or hydroxides of elements of Groups 3 or 13 of the Periodic Table; Aluminates
-
- 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
- D06M11/44—Oxides or hydroxides of elements of Groups 2 or 12 of the Periodic Table; Zincates; Cadmates
-
- 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
- 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
- D06M15/53—Polyethers
-
- 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
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/10—Animal fibres
-
- 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
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/25—Resistance to light or sun, i.e. protection of the textile itself as well as UV shielding materials or treatment compositions therefor; Anti-yellowing treatments
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 discloses a radiation refrigeration fabric, which contains silk fiber, and comprises a material with refractive index higher than 1.6 and lower than 3.0, wherein the material is attached on the fiber. In the radiation refrigeration fabric, the ultraviolet reflectivity is improved by superposing the material with high refractive index attached to the fiber and the fiber, and compared with untreated fabric, the ultraviolet reflectivity of the radiation refrigeration fabric is improved by 42%, so that the reflectivity of the whole sunlight wave band reaches 95%, the temperature of the treated fabric in sunlight can be lower than the room temperature by about 3.6 degrees, and the temperature of the treated fabric covered on the skin can be reduced by about 12 degrees compared with cotton fabric.
Description
Technical Field
The invention belongs to radiation refrigeration materials, and particularly relates to a radiation refrigeration fabric.
Technical Field
With the change of the earth climate, the reduction of carbon emission and the construction of an energy-saving society become common knowledge. The energy consumption for refrigerating air conditioner and other air conditioner accounts for about 15% of the world consumption, so passive refrigerating means are developed to save energyEmission reduction is particularly important. Various fabrics and textiles have been used to provide comfort and charm to the human body and to protect the human body from temperature changes over a lengthy history of civilization. However, when a human being is in an outdoor high temperature environment, it is still a challenge how to cool the human body through a passive refrigeration technology under outdoor conditions because there is no energy input (such as an air conditioner) and conventional clothes cannot give a cooling and cooling sensation. The radiation refrigeration is a refrigeration technology for achieving the cooling by radiating heat to cold outer space spontaneously, the atmosphere has different transmittances for electromagnetic waves with different wavelengths, wherein the transmittances in 8-13 micron wave bands are extremely high, namely an atmospheric window, so that the material has the highest possible emissivity in 8-13 microns and the highest possible reflectivity in the wave bands except 8-13 microns, particularly the solar spectrum wave band of 0.3-2.5 microns by regulating and controlling the spectral properties of the material, the material has excellent radiation refrigeration effect, thereby realizing zero electricity consumption, no refrigerant and zero-emission passive refrigeration, and the theoretical refrigeration power can reach 150W/m 2 . Therefore, the development of the passive radiation refrigeration mode is a green refrigeration mode, not only can greatly save energy, but also can relieve the problems of environmental pollution, greenhouse effect and the like caused by the traditional refrigeration means.
The traditional refrigeration modes such as air conditioner cooling and the like require huge energy consumption, and the greenhouse effect is accelerated. In addition, the radiation refrigeration materials reported in recent years exhibit good refrigeration power, but cannot be applied to human bodies due to the material component structure; infrared transmitting refrigerating materials based on nano polyethylene, although they have been shaped to exhibit cotton-like wearable properties, still do not reach a level below room temperature under outdoor sunlight conditions, so that refrigerating efficiency is limited.
Disclosure of Invention
In order to increase the radiation refrigeration level of a wearable fabric in outdoor conditions, the object of the present invention is to propose a radiation refrigeration fabric comprising a material with refractive index higher than 1.6 and lower than 3.0 attached to the fibers. The high refractive index material and the fabric have refractive index difference, and light is scattered when passing through an interface where the high refractive index material and the fabric are contacted, so that the overall reflectivity is improved, the treated fabric has extremely high reflectivity in a solar energy wave band of 0.3-2.5 microns, particularly in an ultraviolet wave band, and the structure greatly reduces the ultraviolet absorption of the fiber fabric; meanwhile, the structure does not influence the emissivity of the fabric in an infrared band, so that the radiation refrigeration performance lower than room temperature is realized for the first time, and the cooling effect on a human body is greatly improved.
To achieve the above object, the present invention provides a radiation refrigerating fabric comprising silk fibers, the radiation refrigerating fabric comprising a material having a refractive index higher than 1.6 and lower than 3.0 attached to the fibers.
Preferably, the material having a refractive index higher than 1.6 and lower than 3.0 includes alumina nanoparticles, zinc oxide nanoparticles, hafnium oxide nanoparticles, zirconium oxide nanoparticles, and the like.
Preferably, the preparation method of the radiation refrigeration fabric comprises a nano treatment process, coating and dipping.
Preferably, the preparation method of the radiation refrigeration fabric nanometer treatment process comprises the following steps:
(1) Firstly, dissolving the material with the refractive index higher than 1.6 and lower than 3.0 in deionized water to obtain a solution with the mass concentration of 6-30 g/L;
(2) Adding tetrabutyl titanate with the mass concentration of 8-16g/L into the solution in the step (1), and obtaining nano alumina hydrosol through ultrasonic dispersion;
(3) Immersing the fabric in 0.2-20% fatty alcohol polyoxyethylene ether solution for 10-30min.
(4) Taking the untreated fabric out of the fatty alcohol polyoxyethylene ether solution, and drying at 60-80 ℃ for 30-60min.
(5) Immersing the dried fabric into the nano alumina hydrosol obtained in the step (2), and heating in a water bath at the temperature of 35-70 ℃ for 40-70min.
(6) And (5) taking out the fabric subjected to the water bath in the step (5) and airing.
Preferably, the mass concentration of the solution in the step (1) is 18g/L.
Preferably, the mass concentration of the tetrabutyl titanate in the step (2) is 12g/L.
Preferably, the concentration of the fatty alcohol-polyoxyethylene ether solution in the step (3) is 1%, and the soaking time in the step (3) is 15min.
Preferably, in the step (4), the mixture is dried in a constant temperature oven at 60 ℃ for 30min.
Preferably, the fabric dried in the step (5) is immersed in the nano alumina hydrosol in the step (2), and is heated in a water bath at the temperature of 40 ℃ for 50min.
The beneficial effects are that:
in the radiation refrigeration fabric, the ultraviolet reflectivity is improved by superposing the material with high refractive index attached to the fiber and the fiber, and compared with untreated fabric, the ultraviolet reflectivity of the radiation refrigeration fabric is improved by 42%, so that the reflectivity of the whole sunlight wave band reaches 95%, the temperature of the treated fabric in sunlight can be lower than the room temperature by about 3.6 degrees, and the temperature of the treated fabric covered on the skin can be reduced by about 12 degrees compared with cotton fabric.
Drawings
Fig. 1 is a solar band reflectance test pattern of silk.
Fig. 2 is an infrared emission test pattern of silk.
Fig. 3 is a SEM image of the microtopography of the radiant refrigerant fabric of the present invention.
Fig. 4 is a graph of a solar band reflectance test of the radiant refrigerant fabric of the present invention.
Fig. 5 is a comparison of radiant refrigeration performance testing of the radiant refrigeration fabrics of the present invention with untreated fabrics.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
The radiation refrigeration fabric is obtained through a nanometer treatment process, and the specific preparation method is as follows:
(1) Firstly, dissolving alumina nano particles in deionized water to obtain 100g of solution with mass concentration of 18 g/L;
(2) Then adding 20g of tetrabutyl titanate with the mass concentration of 12g/L into the solution in the step (1), and obtaining nano alumina hydrosol through ultrasonic dispersion;
(3) Then the area is 10 multiplied by 10cm 2 Soaking natural silk fabric in 1% fatty alcohol polyoxyethylene ether solution at 30deg.C for 15min;
(4) Then taking out the fabric and drying the fabric in a constant temperature oven at 60 ℃ for 30min;
(5) Immersing the dried fabric into the nano alumina hydrosol obtained in the step (2), and carrying out water bath treatment for 50min in a water bath heater at 40 ℃;
(6) Finally, taking out the fabric subjected to the water bath in the step (5), and airing;
the testing method comprises the following steps:
A. the reflectance of the solar band of the natural silk fabric was tested using an instrument of UV-vis-nir spectrophotometer (UV 3600, shimadzu) equipped with an integrating sphere model (ISR-3100), and fig. 1 shows the test results.
B. The emissivity of the infrared portion of the natural silk fabric was tested using a fourier transform infrared (FT-IR) spectrometer (Nicolet IS50, thermo fisher) and a gold integrating sphere (intersatir MIR, pike) and a mercury cadmium telluride detector, and fig. 2 shows the test results.
C. The radiation refrigeration fabric obtained by the nano treatment process of the example is subjected to microscopic morphology test, fig. 3 is an SEM image of the test, the instrument used is Zeiss Sigma VP, and fig. 3 is a test result.
D. The reflectance test of solar band was performed on the radiation cooled fabric obtained by the nano-treatment process of the example, the used instrument was a UV-vis-ni spectrophotometer (UV 3600, shimadzu) equipped with an integrating sphere model (ISR-3100), and fig. 4 shows the test results.
E. And (3) carrying out temperature test on the radiation refrigeration fabric obtained by the nano treatment process, placing a temperature tester below the fabric, and then recording the air temperature and the temperature below the fabric before and after the treatment, wherein the lower the temperature is, the better the refrigeration effect is represented, and the used instrument is a thermocouple of K-type or Omega.
Test analysis results:
natural silk has higher sunlight reflection and infrared emissivity due to the inherent multilevel structure and protein composition, and has certain basic properties as radiation refrigeration clothes. The lower curve in fig. 1 represents the radiant energy spectrum of sunlight, and the upper reflection average value is 85%, that is, the reflectivity is 85%, mainly due to the light absorption of the ultraviolet part; the lower curve in fig. 2 represents the atmospheric transmittance, and the upper infrared absorption curve shows that the infrared absorption rate reaches 93%, and the solar reflectance currently causes that the radiation refrigeration requirement below the room temperature cannot be achieved.
The SEM image of fig. 3 reveals the microscopic morphology of the radiation chilled fabric obtained after the example nanotechnology treatment, with alumina particles visible on the fiber surface. Fig. 4 shows the spectral properties of the fabric after nanotechnology treatment in the visible infrared band, showing that the visible light region of the fabric after nanotechnology treatment is reflected by more than 95%. Due to the high refractive index of the alumina, the reflectivity of the alumina is improved by being overlapped with the fiber, and compared with untreated fabrics, the reflectivity of the alumina in ultraviolet is improved by 42%, so that the reflectivity of the alumina in the whole sunlight wave band reaches 95%, and the excellent spectral performance ensures that the alumina can realize radiation refrigeration performance in sunlight.
The temperature tester was placed under the fabric and then the air temperature was recorded as well as the temperature under the fabric before and after the treatment, with lower temperatures representing better refrigeration. The temperature test comparison of the fabric before and after the nano process treatment is carried out in fig. 5, which shows that the temperature of the fabric after the nano process treatment can be 3.6 ℃ lower than the room temperature in sunlight, while the untreated fabric keeps the temperature higher than the room temperature all the time in daytime, thus the radiation refrigeration effect of the fabric after the nano process treatment below the room temperature can be realized.
Claims (1)
1. A radiation chilled fabric comprising silk fibers, wherein the radiation chilled fabric comprises a material having a refractive index of greater than 1.6 and less than 3.0 attached to the fibers; the material with the refractive index higher than 1.6 and lower than 3.0 is alumina nano particles; the fabric is a natural silk fabric;
the radiation refrigeration fabric is obtained through a nano treatment process, and the specific preparation method is as follows:
(1) Firstly, dissolving the alumina nano particles in deionized water to obtain 100g of solution with mass concentration of 18 g/L;
(2) Adding 20g of tetrabutyl titanate solution with the mass concentration of 12g/L into the solution in the step (1), and obtaining nano alumina hydrosol through ultrasonic dispersion;
(3) The untreated area was 10X 10cm 2 Soaking natural silk fabric in 1% concentration fatty alcohol polyoxyethylene ether solution at 30deg.C for 15min;
(4) Taking out the fabric in the step (3) from the fatty alcohol-polyoxyethylene ether solution, and drying at a constant temperature of 60 ℃ for 30min;
(5) Immersing the dried fabric into the nano alumina hydrosol obtained in the step (2), and heating in a water bath at 40 ℃ for 50min;
(6) And (5) taking out the fabric subjected to the water bath in the step (5), and drying in the sun to obtain the radiation refrigeration fabric.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010062214 | 2020-01-20 | ||
| CN2020100622147 | 2020-01-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113136724A CN113136724A (en) | 2021-07-20 |
| CN113136724B true CN113136724B (en) | 2023-06-09 |
Family
ID=76809491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010207521.XA Active CN113136724B (en) | 2020-01-20 | 2020-03-23 | Radiation refrigeration fabric |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113136724B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113802365A (en) * | 2021-09-10 | 2021-12-17 | 哈尔滨工业大学 | Oil stain resistant wearable refrigeration base material for personal heat management and preparation method thereof |
| CN114622325B (en) * | 2021-09-30 | 2022-09-23 | 北京金轮沃德科技有限公司 | Double-sided constant-temperature fabric and preparation method thereof |
| CN117661146A (en) * | 2023-12-06 | 2024-03-08 | 中山大学 | Indoor and outdoor dual-mode radiation cooling fabric and preparation method and application thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108870798B (en) * | 2017-05-12 | 2020-07-14 | 浙江大学 | Radiation refrigeration particle and steam condensation recovery device |
| WO2019112629A1 (en) * | 2017-08-15 | 2019-06-13 | The Trustees Of Columbia University In The City Of New York | Devices and methods for radiative cooling |
| CN110317521A (en) * | 2019-07-05 | 2019-10-11 | 宁波瑞凌新能源科技有限公司 | Selective radiation refrigeration coating and its composite material and methods for using them |
-
2020
- 2020-03-23 CN CN202010207521.XA patent/CN113136724B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113136724A (en) | 2021-07-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113136724B (en) | Radiation refrigeration fabric | |
| CN112961530B (en) | Radiation refrigeration coating with long afterglow luminescence property and preparation method thereof | |
| CN106049029B (en) | A kind of poly-dopamine cladding Vanadium dioxide composite powder base intelligent temperature-regulation fabric and its manufacture craft | |
| CN113072737B (en) | Porous polydimethylsiloxane with daytime radiation refrigeration and preparation method thereof | |
| CN103771721A (en) | Preparation method of ultra-hydrophilic transparent SiO2/TiO2 antifog film | |
| CN114854307B (en) | Self-cleaning broadband high-light-absorption coating and preparation method and application thereof | |
| CN113667142B (en) | Photo-thermal dual-response intelligent window and preparation method thereof | |
| CN108360268B (en) | Preparation method of indoor curtain adopting heat-insulating coating | |
| CN115323801B (en) | Coated textile with all-day efficient passive radiation cooling function and preparation method thereof | |
| CN112851945A (en) | Organic silicon microsphere material for daytime passive radiation refrigeration and preparation method and application thereof | |
| CN114457509A (en) | Ultrathin radiation refrigeration fiber membrane based on micro-nano multilevel structure and preparation method thereof | |
| CN115323626B (en) | Polymer and functional complex composite thermal management material and preparation method and application thereof | |
| Dong et al. | Progress in passive daytime radiative cooling: A review from optical mechanism, performance test, and application | |
| Zuo et al. | “Cherimoya-like” polysilsequioxane microspheres with structure-enhanced spectral capability for passive daytime radiative cooling | |
| CN114103330A (en) | Down jacket fabric capable of achieving reflective temperature rise and preparation method thereof | |
| CN113061357A (en) | Anti-reflection hydrophobic coating and preparation method thereof | |
| CN115785514B (en) | Zinc oxide coated modified hollow thermal expansion microsphere and preparation method and application thereof | |
| CN114892417B (en) | Textile containing daytime radiation refrigeration porous coating, and preparation method and application thereof | |
| CN114657784B (en) | Textile with radiation refrigeration function and preparation method thereof | |
| CN114408895B (en) | Multifunctional high-porosity high-thermal-conductivity carbon aerogel based on polymer aerogel and preparation method thereof | |
| CN113684686B (en) | Alginate-calcium carbonate composite microsphere modified radiation cooling passive cooling fabric and preparation method thereof | |
| CN113776226A (en) | Radiation refrigeration film | |
| CN115304809B (en) | Radiation cooling composite film protective material and preparation method and application thereof | |
| CN115926235B (en) | Solar light transmittance-adjustable radiation cooling bacterial cellulose nano composite film and preparation method thereof | |
| CN116903919B (en) | Cellulose-based radiation refrigeration aerogel material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20221123 Address after: 215151 1st floor, 2nd floor, 8th floor, 4th floor, 8th floor, Yangshan Science and Technology Industrial Park, No. 8, Jinyan Road, High tech Zone, Suzhou, Jiangsu Applicant after: Moguang Xinneng Technology (Suzhou) Co.,Ltd. Address before: 210023 163 Xianlin Road, Qixia District, Nanjing, Jiangsu Applicant before: NANJING University |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |