CN117385491B - Rare earth-based passive cooling cool fiber and preparation method and application thereof - Google Patents
Rare earth-based passive cooling cool fiber and preparation method and application thereof Download PDFInfo
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- CN117385491B CN117385491B CN202311667280.7A CN202311667280A CN117385491B CN 117385491 B CN117385491 B CN 117385491B CN 202311667280 A CN202311667280 A CN 202311667280A CN 117385491 B CN117385491 B CN 117385491B
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- 238000001816 cooling Methods 0.000 title claims abstract description 130
- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 113
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 113
- 239000000835 fiber Substances 0.000 title claims abstract description 73
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 50
- 239000004744 fabric Substances 0.000 claims abstract description 41
- 239000000843 powder Substances 0.000 claims abstract description 41
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 16
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 4
- 239000002131 composite material Substances 0.000 claims description 37
- 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 26
- -1 menthol amide Chemical class 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000010936 titanium Substances 0.000 claims description 18
- 238000001035 drying Methods 0.000 claims description 16
- NOOLISFMXDJSKH-UHFFFAOYSA-N DL-menthol Natural products CC(C)C1CCC(C)CC1O NOOLISFMXDJSKH-UHFFFAOYSA-N 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 15
- 229940041616 menthol Drugs 0.000 claims description 15
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 15
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 15
- 239000010977 jade Substances 0.000 claims description 14
- NOOLISFMXDJSKH-UTLUCORTSA-N (+)-Neomenthol Chemical compound CC(C)[C@@H]1CC[C@@H](C)C[C@@H]1O NOOLISFMXDJSKH-UTLUCORTSA-N 0.000 claims description 13
- 239000003963 antioxidant agent Substances 0.000 claims description 13
- 230000003078 antioxidant effect Effects 0.000 claims description 13
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 13
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 11
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 10
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 10
- 238000010008 shearing Methods 0.000 claims description 10
- 239000006229 carbon black Substances 0.000 claims description 9
- 239000000839 emulsion Substances 0.000 claims description 9
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 9
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 7
- 238000002074 melt spinning Methods 0.000 claims description 7
- 239000002105 nanoparticle Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 235000010215 titanium dioxide Nutrition 0.000 claims description 6
- 238000000498 ball milling Methods 0.000 claims description 5
- 238000001354 calcination Methods 0.000 claims description 5
- 238000004821 distillation Methods 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 238000005469 granulation Methods 0.000 claims description 5
- 230000003179 granulation Effects 0.000 claims description 5
- 239000000155 melt Substances 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- 238000009987 spinning Methods 0.000 claims description 5
- 239000004753 textile Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 239000002270 dispersing agent Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000001038 titanium pigment Substances 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 2
- TVXBFESIOXBWNM-UHFFFAOYSA-N Xylitol Natural products OCCC(O)C(O)C(O)CCO TVXBFESIOXBWNM-UHFFFAOYSA-N 0.000 claims description 2
- UJNOLBSYLSYIBM-WISYIIOYSA-N [(1r,2s,5r)-5-methyl-2-propan-2-ylcyclohexyl] (2r)-2-hydroxypropanoate Chemical compound CC(C)[C@@H]1CC[C@@H](C)C[C@H]1OC(=O)[C@@H](C)O UJNOLBSYLSYIBM-WISYIIOYSA-N 0.000 claims description 2
- 230000035597 cooling sensation Effects 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- 229920000747 poly(lactic acid) Polymers 0.000 claims description 2
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 2
- 239000004626 polylactic acid Substances 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
- 239000000811 xylitol Substances 0.000 claims description 2
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 claims description 2
- 229960002675 xylitol Drugs 0.000 claims description 2
- 235000010447 xylitol Nutrition 0.000 claims description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims 1
- 238000002791 soaking Methods 0.000 claims 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 3
- 239000011707 mineral Substances 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 18
- 239000006087 Silane Coupling Agent Substances 0.000 description 14
- 230000005855 radiation Effects 0.000 description 8
- 238000009940 knitting Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical group [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- ONLCZUHLGCEKRZ-UHFFFAOYSA-N cerium(3+) lanthanum(3+) oxygen(2-) Chemical compound [O--].[O--].[O--].[La+3].[Ce+3] ONLCZUHLGCEKRZ-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
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- 230000006870 function Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 238000000985 reflectance spectrum Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/106—Radiation shielding agents, e.g. absorbing, reflecting agents
-
- 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
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/144—Alcohols; Metal alcoholates
-
- 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
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Artificial Filaments (AREA)
Abstract
The invention provides a rare earth-based passive cooling cool fiber and a preparation method and application thereof, wherein the rare earth-based passive cooling cool fiber comprises the following components in parts by weight: 80-90 parts of base material powder, 1-10 parts of first cool feeling component, 1-10 parts of second cool feeling component, 0.1-3 parts of cool feeling after-finishing agent and 1-10 parts of auxiliary agent. The rare earth-based passive cooling cool feeling fiber provided by the invention can realize contact cool feeling and continuous cool feeling at the same time. The cool sense is brought by the cool sense mineral component and the after-finishing agent at the initial contact stage of the fabric and the human body; in the wearing process, the rare earth passive cooling material is used for realizing long-acting cooling and refrigerating.
Description
Technical Field
The invention belongs to the field of textile weaving, and particularly relates to a rare earth-based passive cooling cool fiber, a preparation method and application thereof.
Background
The thermal comfort of the fabric is reflected in two aspects, on one hand, when the fabric contacts the surface of a human body, heat exchange can occur due to temperature difference, so that the human body generates cool or warm body feeling, and the thermal comfort of the human body when the human body contacts the fabric can be improved by adding functional particles into the fabric or performing after-finishing; on the other hand, after the human body wears the clothes, the fiber with a special structure or component shows the temperature adjusting capability through absorbing or releasing water molecules, but the adjusting mode depends on the moisture regain of the fiber, the requirement on the fiber type is high, the application scene is limited, after the human body wears for a period of time, the movement of the water molecules reaches dynamic balance, and the cool feeling or the heating effect of the fabric can be lost.
The two fabric thermal comfort adjusting modes can not realize continuous cool feeling, and the passive cooling mode is a mode for generating continuous cool feeling. Passive cooling is mainly achieved from the following two aspects: (1) The absorption and emissivity of the fabric to the radiation of the human body are increased, the skin of the human body has high heat radiation in the far infrared band of 7-14 mu m, the atmospheric radiation in the range of 8-13 mu m can pass through an atmospheric layer and enter the outer space with the temperature as low as 3K, and the heat radiation of the human body can be directly released into the universe through the atmospheric window due to the overlapping of the infrared radiation range of the human body and the atmospheric window, so that zero energy consumption cooling is realized; (2) In summer, a large part of heat radiation comes from the sun, the reflectivity of the fabric to sunlight in the wavelength range of 300-2500 nm is improved, the temperature of the fabric can be reduced, the conduction of environmental heat to the skin surface is further reduced, and the purposes of cooling and heat insulation are achieved. However, the single passive cooling fabric does not have the function of contacting with cool feeling, and is difficult to keep the thermal comfort of a human body in the initial stage of wearing.
Therefore, the field needs to develop a fiber with both contact cool feeling and high-efficiency continuous cool feeling, wherein the contact cool feeling is realized by adding cool feeling components and after-finishing, and the high-efficiency continuous cool feeling is realized by a passive cooling mode, so as to achieve the aim of realizing the thermal comfort of a human body in a hot environment.
Disclosure of Invention
In view of the above, the invention aims to overcome the defects in the prior art, and provides a rare earth-based passive cooling fiber, and a preparation method and application thereof.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
in a first aspect, the invention provides a rare earth-based passive cooling fiber, which comprises the following components in parts by weight: 80-90 parts of base material powder, 1-10 parts of first cool feeling component, 1-10 parts of second cool feeling component, 0.1-3 parts of cool feeling after-finishing agent and 1-10 parts of auxiliary agent.
Preferably, the first cool feeling component is one or more of jade powder, shell powder, mica powder and pearl powder.
Preferably, the second cool feeling component is rare earth composite cooling material La 2 Ce 2-x-y-z Si x Ti y Zr z O 7 Wherein 0 is<x<2，0<y<2，0<z<2，x+y+z<2。
Preferably, the cool feeling after-finishing agent is one or more of menthol, xylitol, menthol amide and menthyl lactate.
Preferably, the substrate powder is selected from one or more of polyethylene, polypropylene, polyethylene terephthalate, polylactic acid, polyacrylonitrile, polyamide, ethylene-octene copolymer, polybutylene terephthalate, polypropylene terephthalate, polyurethane and polyvinyl alcohol.
Preferably, the auxiliary agent is one or more of dispersing agent, antioxidant, slipping agent and release agent.
Preferably, the structure of the fiber is a circular structure or a profiled structure.
The special-shaped structure is one of a single cross structure, a double cross structure, a multi-blade structure, an orange-flap structure, a parallel structure, a radial gradient concentration structure, a triangular structure, a flat structure and the like.
The invention also provides a preparation method of the rare earth-based passive cooling cool feeling fiber, which comprises the following steps:
(1) Uniformly dispersing lanthanum oxide, cerium oxide, white carbon black, titanium pigment and zirconium oxide into deionized water, ball milling at a rotational speed of 200-500 r/min for 12-24 h, suction filtering, drying, calcining at 800-1500 ℃ to obtain a rare earth composite cooling material La 2 Ce 2-x-y-z Si x Ti y Zr z O 7 A second cooling sensation component;
(2) Pre-dispersing the first cool component, the second cool component obtained in the step (1) and the dispersing agent in deionized water, uniformly mixing, and then shearing and dispersing at a high speed by using a sand mill for 0.5-10 h, wherein the shearing line speed is 5 m/s-13 m/s, so as to obtain nanoparticle emulsion with the particle size distribution of 100 nm-800 nm;
(3) Concentrating the nanoparticle emulsion obtained in the step (2) by a reduced pressure distillation mode, uniformly mixing the nanoparticle emulsion with polymer base material powder, drying at 100-130 ℃, carrying out melt extrusion granulation after the water content is lower than 200 ppm, wherein the melt temperature is 150-350 ℃, the extrusion speed is 100-300 r/min, and the granulating speed is 10-30 m/min to obtain rare earth base passive cooling master batch;
(4) Drying the rare earth-based passive cooling master batch obtained in the step (3), and preparing rare earth composite cooling yarn by a melt spinning process after the water content is lower than 200 ppm, wherein the spinning temperature is 150-350 ℃ and the winding speed is 1800-5000 m/min;
(5) And (3) putting the rare earth composite cooling yarn obtained in the step (4) into impregnating solution containing cooling finishing agent, heating to 50-60 ℃, impregnating for 1-2 hours, taking out, washing with normal-temperature water, and drying at 70-80 ℃ to obtain the rare earth-based passive cooling fiber.
In a third aspect, the invention also provides application of the rare earth-based passive cooling cool feeling fiber in the fields of clothing, home textiles, industrial textiles or outdoor fabrics.
The cooling principle of the fabric is shown in figure 1, and the addition of the cool feeling mineral (namely the first cool feeling component) and the after-finishing agent improves the contact cool feeling and ensures the thermal comfort of a human body when the human body contacts with the fabric. Meanwhile, rare earth composite passive cooling material La 2 Ce 2-x-y-z Si x Ti y Zr z O 7 In the second cool sense component, lattice distortion occurs through co-doping of rare earth and other elements, the reflection and radiation properties of the material are enhanced, the far infrared emissivity of the passive cooling layer is up to more than 0.95, and the radiation heat of a human body can be emitted into the universe at a near absolute zero degree; meanwhile, the sunlight and near infrared reflectance of the material can reach more than 90%, most of heat in the sunlight can be reflected, so that the heat dissipation of a human body is promoted, the absorption of the fabric to the environment heat is reduced, and a continuous cool feeling is provided for the human body microenvironment.
Compared with the prior art, the invention has the following advantages:
(1) The rare earth-based passive cooling cool feeling fiber provided by the invention can realize contact cool feeling and continuous cool feeling at the same time. The cool sense is brought by the cool sense mineral component and the after-finishing agent at the initial contact stage of the fabric and the human body; in the wearing process, the rare earth passive cooling material is used for realizing long-acting cooling and refrigerating.
(3) Rare earth composite cooling material La used in the invention 2 Ce 2-x-y-z Si x Ti y Zr z O 7 The rare earth and other elements are co-doped to cause the rare earth and other elements to generate lattice distortion, the reflection property of the material is improved, and after the rare earth composite cooling material is doped, the solar reflectance of the fabric can reach more than 90 percent, thereby maximally reducing the influence of environmental heat on human bodies.
(3) Rare earth composite cooling material La used in the invention 2 Ce 2-x-y-z Si x Ti y Zr z O 7 The heat generated by the human body is transferred to the universe of nearly absolute zero degree by high emissivity of more than 0.95, so that the efficient passive refrigeration is realized.
(4) Rare earth composite cooling material La used in the invention 2 Ce 2-x-y-z Si x Ti y Zr z O 7 Has high absorptivity in ultraviolet region, and can reduce damage of ultraviolet to human body.
(5) The cool feeling fiber has simple preparation process and is easy for large-scale production.
Drawings
FIG. 1 is a schematic cooling diagram of a rare earth based passive cooling fiber;
FIG. 2 is an XRD pattern of the rare earth composite passive cooling powder prepared in example 1;
FIG. 3 is a graph of solar reflectance spectrum of a rare earth-based passive cooling cool fabric and a blank fabric.
Detailed Description
Unless defined otherwise, technical terms used in the following examples have the same meaning as commonly understood by one of ordinary skill in the art to which the inventive concepts pertain. The test reagents used in the following examples, unless otherwise specified, are all conventional biochemical reagents; the experimental methods are conventional methods unless otherwise specified.
The invention will be described in detail with reference to examples.
Example 1
A rare earth-based passive cooling cool fiber comprises the following components in parts by weight: 85 parts of polyethylene terephthalate, 3 parts of jade powder and La of rare earth composite cooling material 2 Ce 0.5 Si 0.5 Ti 0.5 Zr 0.5 O 7 7 parts of powder, 1 part of menthol, 2 parts of silane coupling agent and 2 parts of antioxidant.
The preparation method of the rare earth-based passive cooling cool feeling fiber comprises the following steps:
lanthanum oxide, cerium oxide, white carbon black, titanium pigment and zirconium oxide are mixed according to a mole ratio of 2:1:1:1:1 into deionized water, ball milling for 24 h at 500 r/min; suction filtering and drying, and calcining at 1200 ℃ to obtain rare earth composite cooling material La 2 Ce 0.5 Si 0.5 Ti 0.5 Zr 0.5 O 7 . The XRD results are shown in fig. 2, and it can be seen that the powder after doping has a regular fluorite structure.
Pre-dispersing rare earth composite cooling material, jade powder and silane coupling agent in deionized water, uniformly mixing, and then shearing and dispersing at high speed by using a sand mill for 5 h, wherein the shearing line speed is 8 m/s, so as to obtain the particle size distribution D 90 Concentrating the emulsion of 500 nm by reduced pressure distillation, uniformly mixing with polyethylene terephthalate, drying at 130 ℃, carrying out melt extrusion granulation after the water content is lower than 200 ppm, wherein the melt temperature is 290 ℃, the extrusion speed is 200 r/min, and the granulating speed is 30 m/min, thus obtaining the rare earth-based passive cooling master batch A.
And preparing rare earth composite cooling yarn from the dried master batch by a melt spinning process, wherein the spinning temperature is 290 ℃, and the winding speed is 4000 m/min. And (3) putting the obtained yarn into an impregnating solution containing menthol, heating to 50 ℃, impregnating for 2 hours, taking out, washing with normal-temperature water, and drying at 80 ℃ to obtain the rare earth-based passive cooling cool feeling fiber A.
The rare earth-based passive cooling cool fiber A of the embodiment is knitted in a knitting mode to obtain the rare earth-based passive cooling cool fiber fabric A.
Example 2
A rare earth-based passive cooling cool fiber comprises the following components in parts by weight: 85 parts of polyethylene terephthalate, 3 parts of jade powder and La of rare earth composite cooling material 2 Ce 1.7 Si 0.1 Ti 0.1 Zr 0.1 O 7 7 parts of powder, 1 part of menthol, 2 parts of silane coupling agent and 2 parts of antioxidant.
Except for preparing rare earth composite cooling materials, lanthanum oxide, cerium oxide, white carbon black, titanium white and zirconium oxide are mixed according to the mole ratio of 1:1.7:0.1:0.1:0.1, and the preparation method in the embodiment is the same as that in the embodiment 1, so as to obtain the rare earth-based passive cooling fiber B and the rare earth-based passive cooling fiber fabric B.
Example 3
A rare earth-based passive cooling cool fiber comprises the following components in parts by weight: 85 parts of polyethylene terephthalate, 3 parts of jade powder and La of rare earth composite cooling material 2 Ce 0.1 Si 1.7 Ti 0.1 Zr 0.1 O 7 7 parts of powder, 1 part of menthol, 2 parts of silane coupling agent and 2 parts of antioxidant.
Except for preparing rare earth composite cooling materials, lanthanum oxide, cerium oxide, white carbon black, titanium white and zirconium oxide are mixed according to the mole ratio of 1:0.1:1.7:0.1:0.1, and the preparation method in the embodiment is the same as that in the embodiment 1, so as to obtain the rare earth-based passive cooling fiber C and the rare earth-based passive cooling fiber fabric C.
Example 4
A rare earth-based passive cooling cool fiber comprises the following components in parts by weight: 85 parts of polyethylene terephthalate, 3 parts of jade powder and La of rare earth composite cooling material 2 Ce 0.1 Si 0.1 Ti 1.7 Zr 0.1 O 7 7 parts of powder, 1 part of menthol, 2 parts of silane coupling agent and 2 parts of antioxidant.
Except for preparing rare earth composite cooling materials, lanthanum oxide, cerium oxide, white carbon black, titanium white and zirconium oxide are mixed according to the mole ratio of 1:0.1:0.1:1.7:0.1, and the preparation method in the embodiment is the same as that in the embodiment 1, so as to obtain the rare earth-based passive cooling fiber D and the rare earth-based passive cooling fiber fabric D.
Example 5
A rare earth-based passive cooling cool fiber comprises the following components in parts by weight: 85 parts of polyethylene terephthalate, 3 parts of jade powder and La of rare earth composite cooling material 2 Ce 0.1 Si 0.1 Ti 0.1 Zr 1.7 O 7 7 parts of powder, 1 part of menthol, 2 parts of silane coupling agent and 2 parts of antioxidant.
Except for preparing rare earth composite cooling materials, lanthanum oxide, cerium oxide, white carbon black, titanium white and zirconium oxide are mixed according to the mole ratio of 1:0.1:0.1:0.1:1.7, the preparation method in the embodiment is the same as that in the embodiment 1, and the rare earth-based passive cooling cool fiber E and the rare earth-based passive cooling cool fiber fabric E are obtained.
Comparative example 1
A rare earth-based passive cooling cool fiber comprises the following components in parts by weight: polyethylene terephthalate85 parts of ester, 3 parts of jade powder and La as rare earth cooling material 2 Ce 2 O 7 7 parts of powder, 1 part of menthol, 2 parts of silane coupling agent and 2 parts of antioxidant.
Except for the preparation of rare earth cooling materials, the molar ratio of the rare earth cooling materials is 1:2, the preparation method of the lanthanum oxide and the cerium oxide in the comparative example is the same as that of the example 1, and the rare earth-based passive cooling cool feeling fiber F and the rare earth-based passive cooling cool feeling fiber fabric F are obtained.
Comparative example 2
A rare earth-based passive cooling cool fiber comprises the following components in parts by weight: 85 parts of polyethylene terephthalate, 3 parts of jade powder and La as a rare earth cooling material 2 CeSiO 7 7 parts of powder, 1 part of menthol, 2 parts of silane coupling agent and 2 parts of antioxidant.
Except for the preparation of rare earth composite cooling material, the molar ratio of the addition is 1:1:1, lanthanum oxide, cerium oxide and silicon oxide, and the preparation method in this comparative example is the same as that of example 1, to obtain rare earth-based passive cooling cool feeling fiber G and rare earth-based passive cooling cool feeling fiber fabric G.
Comparative example 3
A rare earth-based passive cooling cool fiber comprises the following components in parts by weight: 85 parts of polyethylene terephthalate, 3 parts of jade powder and La as a rare earth cooling material 2 CeTiO 7 7 parts of powder, 1 part of menthol, 2 parts of silane coupling agent and 2 parts of antioxidant.
Except for the preparation of rare earth composite cooling material, the molar ratio of the addition is 1:1:1, lanthanum oxide, cerium oxide and titanium dioxide, and the preparation method in the comparative example is the same as that of the example 1, so as to obtain the rare earth-based passive cooling cool fiber H and the rare earth-based passive cooling cool fiber fabric H.
Comparative example 4
A rare earth-based passive cooling cool fiber comprises the following components in parts by weight: 85 parts of polyethylene terephthalate, 3 parts of jade powder and La as a rare earth cooling material 2 CeZrO 7 7 parts of powder, 1 part of menthol, 2 parts of silane coupling agent and 2 parts of antioxidant.
Except for the preparation of rare earth composite cooling material, the molar ratio of the addition is 1:1:1, lanthanum oxide, cerium oxide and zirconium oxide, and the preparation method in this comparative example is the same as that in example 1, to obtain rare earth-based passive cooling cool feeling fiber I and rare earth-based passive cooling cool feeling fiber fabric I.
Comparative example 5
A rare earth-based passive cooling fiber comprises the following components in parts by weight: 89 parts of polyethylene glycol terephthalate and rare earth passive cooling material La 2 Ce 0.5 Si 0.5 Ti 0.5 Zr 0.5 O 7 7 parts of powder, 2 parts of silane coupling agent and 2 parts of antioxidant.
The preparation method of the rare earth-based passive cooling fiber comprises the following steps:
lanthanum oxide, cerium oxide, white carbon black, titanium pigment and zirconium oxide are mixed according to a mole ratio of 2:1:1:1:1 into deionized water, ball milling for 24 h at 500 r/min; suction filtering and drying, and calcining at 1200 ℃ to obtain the rare earth composite passive cooling material La 2 Ce 0.5 Si 0.5 Ti 0.5 Zr 0.5 O 7 。
Pre-dispersing rare earth composite cooling material and silane coupling agent in deionized water, uniformly mixing, and then shearing and dispersing at high speed by using a sand mill for 5 h, wherein the shearing line speed is 8 m/s, so as to obtain the particle size distribution D 90 Concentrating the emulsion of 500 nm by reduced pressure distillation, uniformly mixing with polyethylene terephthalate, drying at 130 ℃, carrying out melt extrusion granulation after the water content is lower than 200 ppm, wherein the melt temperature is 290 ℃, the extrusion speed is 200 r/min, and the granulating speed is 30 m/min, thus obtaining the rare earth-based passive cooling master batch.
And preparing rare earth composite cooling yarn from the dried master batch by a melt spinning process, wherein the spinning temperature is 290 ℃, and the winding speed is 4000 m/min, so as to obtain the rare earth-based passive cooling fiber J.
The rare earth-based passive cooling fiber J of the comparative example is knitted in a knitting mode to obtain the rare earth-based passive cooling fiber fabric J.
Comparative example 6
A cool feeling fiber comprises the following components in parts by weight: 92 parts of polyethylene terephthalate, 3 parts of jade powder, 1 part of menthol, 2 parts of a silane coupling agent and 2 parts of an antioxidant.
The preparation method of the cool feeling fiber comprises the following steps:
pre-dispersing jade powder and silane coupling agent in deionized water, mixing, and high-speed shearing and dispersing with sand mill at 5 h and shearing line speed of 8 m/s to obtain particle size distribution D 90 Concentrating the emulsion of 500 nm by reduced pressure distillation, uniformly mixing with polyethylene terephthalate, drying at 130 ℃, carrying out melt extrusion granulation after the water content is lower than 200 ppm, wherein the melt temperature is 290 ℃, the extrusion speed is 200 r/min, and the granulating speed is 30 m/min, thus obtaining the cool master batch.
And preparing rare earth composite cooling yarn from the dried master batch through a melt spinning process, wherein the spinning temperature is 290 ℃, and the winding speed is 4000 m/min, so as to obtain cool fiber K.
The cool feeling fiber K of the comparative example was knitted by knitting to obtain a cool feeling fiber fabric K.
Comparative example 7 (blank)
Directly granulating, melt spinning and knitting the polyethylene terephthalate powder to obtain the fabric L.
The fabrics obtained in examples 1 to 5 and comparative examples 1 to 7 were tested for reflectance in a wavelength band of 300 to 2500 nm and far infrared emissivity in a wavelength band of 8 to 13 μm, and a blank pattern L was used as a reference, and the temperature difference at the fabric covering place after irradiation with a solar light simulation lamp for 30 minutes was tested, and the results are shown in the following table:
as can be seen from the comparison results of the examples 1-5 and the comparative example 1, doping of Si, ti and Zr elements in the passive cooling layer improves sunlight reflection and far infrared emission properties of lanthanum cerium oxide, and better plays a role in cooling and heat insulation; when La: ce: si: ti: the ratio of Zr is 4:1:1:1:1, the doping of Si and Zr is more beneficial to the improvement of the emissivity of the material, and the doping of Ti can improve the solar reflectance of the material.
From the comparison results of examples 1 to 5 and comparative examples 2 to 4, it can be seen that the improvement of the heat insulating effect of the material by doping only one element is not very remarkable, and the synergistic effect of a plurality of elements is required, and the sunlight reflection property and the far infrared emission property of the material are improved.
The result of comparative example 5 shows that the contact cool feeling coefficient of the fiber fabric is very low without adding the first cool feeling component and the cool feeling after-finishing agent, and the thermal comfort of the contact moment of the skin and the fiber fabric cannot be ensured.
The result of comparative example 6 shows that the reflection and emission properties of the fiber fabric are greatly reduced without adding the second cool component rare earth composite cooling material, the continuous cool cannot be brought, and the fiber fabric is long-lasting in hot environment and has no obvious cooling effect.
The reflectance test results of the fabric and the blank fabric prepared in the example 1 in the wave band of 300-2500 nm are shown in fig. 3, and it can be seen that the reflectance property of the fabric prepared in the invention in the near infrared wave band of 700-2500 nm is more than 93%.
The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A rare earth-based passive cooling fiber is characterized in that: comprises the following components in parts by weight: 80-90 parts of base material powder, 1-10 parts of first cool feeling component, 1-10 parts of second cool feeling component, 0.1-3 parts of cool feeling after-finishing agent and 1-10 parts of auxiliary agent; the first cool feeling component is one or more of jade powder, shell powder, mica powder and pearl powder; the second cool sense component is rare earth composite cooling material La 2 Ce 2-x-y-z Si x Ti y Zr z O 7 Wherein 0 is<x<2，0<y<2，0<z<2，x+y+z<2；
The preparation process of the rare earth-based passive cooling cool feeling fiber comprises the following steps: preparing rare earth composite cooling yarns from base material powder, a first cooling component and a second cooling component through a melt spinning process, and soaking and drying the rare earth composite cooling yarns in an impregnating solution containing a cooling after-finishing agent to obtain rare earth-based passive cooling fibers;
the preparation process of the second cool feeling component comprises the following steps: uniformly dispersing lanthanum oxide, cerium oxide, white carbon black, titanium pigment and zirconium oxide into deionized water, ball milling at a rotational speed of 200-500 r/min for 12-24 h, suction filtering, drying, calcining at 800-1500 ℃ to obtain a rare earth composite cooling material La 2 Ce 2-x-y-z Si x Ti y Zr z O 7 I.e. a second cooling component.
2. The rare earth-based passive cooling cool feeling fiber according to claim 1, characterized in that: the cool feeling after-finishing agent is one or more of menthol, xylitol, menthol amide and menthyl lactate.
3. The rare earth-based passive cooling cool feeling fiber according to claim 1, characterized in that: the base material powder is one or more selected from polyethylene, polypropylene, polyethylene terephthalate, polylactic acid, polyacrylonitrile, polyamide, ethylene-octene copolymer, polybutylene terephthalate, polypropylene terephthalate, polyurethane and polyvinyl alcohol.
4. The rare earth-based passive cooling cool feeling fiber according to claim 1, characterized in that: the auxiliary agent is one or more of dispersing agent, antioxidant, slipping agent and release agent.
5. The rare earth-based passive cooling cool feeling fiber according to claim 1, characterized in that: the structure of the fiber is a round structure or a special-shaped structure.
6. The method for preparing the rare earth-based passive cooling cool feeling fiber according to any one of claims 1 to 5, which is characterized in that: the method comprises the following steps:
(1) Uniformly mixing lanthanum oxide, cerium oxide, white carbon black, titanium white and zirconium oxideDispersing into deionized water, ball milling for 12-24 hours at a rotating speed of 200-500 r/min, then suction filtering and drying, and calcining at 800-1500 ℃ to obtain the rare earth composite cooling material La 2 Ce 2-x-y-z Si x Ti y Zr z O 7 A second cooling sensation component;
(2) Pre-dispersing the first cool component, the second cool component obtained in the step (1) and the dispersing agent in deionized water, uniformly mixing, and then shearing and dispersing at a high speed by using a sand mill for 0.5-10 h, wherein the shearing line speed is 5 m/s-13 m/s, so as to obtain nanoparticle emulsion with the particle size distribution of 100 nm-800 nm;
(3) Concentrating the nanoparticle emulsion obtained in the step (2) by a reduced pressure distillation mode, uniformly mixing the nanoparticle emulsion with polymer base material powder, drying at 100-130 ℃, carrying out melt extrusion granulation after the water content is lower than 200 ppm, wherein the melt temperature is 150-350 ℃, the extrusion speed is 100-300 r/min, and the granulating speed is 10-30 m/min to obtain rare earth base passive cooling master batch;
(4) Drying the rare earth-based passive cooling master batch obtained in the step (3), and preparing rare earth composite cooling yarn by a melt spinning process after the water content is lower than 200 ppm, wherein the spinning temperature is 150-350 ℃ and the winding speed is 1800-5000 m/min;
(5) And (3) putting the rare earth composite cooling yarn obtained in the step (4) into impregnating solution containing cooling finishing agent, heating to 50-60 ℃, impregnating for 1-2 hours, taking out, washing with normal-temperature water, and drying at 70-80 ℃ to obtain the rare earth-based passive cooling fiber.
7. Use of the rare earth based passive cooling cool feeling fiber according to any one of claims 1 to 5 in the field of preparing clothing, home textile, industrial textile or outdoor fabric.
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| CN116874910A (en) * | 2023-07-25 | 2023-10-13 | 浙江明筑新材料股份有限公司 | Cool sense simulation ecological plant with heat insulation and cooling functions |
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| CN109537087A (en) * | 2018-08-14 | 2019-03-29 | 岑锴林 | Far-infrared functional master batch, far-infrared polyester fiber and preparation method, application |
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