CN111647969B - Composite fiber - Google Patents
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- CN111647969B CN111647969B CN202010523544.1A CN202010523544A CN111647969B CN 111647969 B CN111647969 B CN 111647969B CN 202010523544 A CN202010523544 A CN 202010523544A CN 111647969 B CN111647969 B CN 111647969B
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- 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
- D01F6/90—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 polyamides
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- 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
- D01F1/08—Addition of substances to the spinning solution or to the melt for forming hollow filaments
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- 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
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- 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
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
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- 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
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/48—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polymers of halogenated hydrocarbons
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- 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
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/52—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polymers of unsaturated carboxylic acids or unsaturated esters
-
- 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
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- 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
- D01F6/94—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 other polycondensation products
-
- 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
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
Abstract
The present invention relates to a composite fiber. The composite fiber consists of a matrix, an air fiber core, an infrared filler and a visible light-near infrared filler, wherein the infrared filler and the visible light-near infrared filler are distributed in the matrix; the infrared filler is a nanorod made of a first metal material; the visible light-near infrared filler is nanospheres made of a second metal material and/or nanospheres made of a full-medium material. The composite fiber can realize the selective scattering enhancement effect of the fiber material in the wide band range of visible light through the selection of the material and the particle size of the visible light filler nanosphere, so that the fiber presents the monochromatic, photochromic mixed color or gradient color effect; the selective radiation enhancement effect of the fiber material in the infrared broadband range can be realized through the selection of the material and the particle size of the infrared filler nano-rod, so that the fiber can show the radiation enhancement effect of single band, multi-band or broadband in the infrared spectral region; the air fiber core structure enables the fiber to have better heat preservation and light effects; the color of the composite fiber is not subjected to a printing and dyeing process, and the composite fiber has the characteristics of greenness and no pollution.
Description
Technical Field
The invention relates to the technical field of fibers, in particular to a composite fiber.
Background
The fiber is a basic unit for forming various fabric materials, and the intrinsic property of the fiber is the basis for forming the integral macroscopic characteristic of the fabric. With the development of Nano Technology (Nano Technology) and Optical metamaterials (Optical metamaterials) design Technology, the design of novel fiber materials based on Nano materials is widely applied to various fields, such as aerospace, military industry, clothing and the like, and brings new development opportunities for the textile industry.
Since fiber fabrics are used in the clothing industry, the color, weight, heat insulation, moisture absorption, etc. of the fibers are important concerns in the clothing industry. Particularly, in recent years, studies have proved that far infrared rays have a health-care effect on human bodies, and therefore, there are some studies and patent reports based on doping nanoparticles to enhance the far infrared radiation effect of fibers, such as a far infrared health-care polyester composite fiber (application No. 201711321392.1), a far infrared thermal fiber (application No. 201820564305.9), and the like. However, the above studies and inventions generally only focus on the enhancement of far infrared radiation by fiber materials, and the colors formed by the materials in the visible light band range are still subject to certain pollution by the traditional printing and dyeing method, and the far infrared radiation enhancement effect formed by the fiber matrix and the dopant is inhibited due to the presence of surface dyes.
In summary, most of the traditional fiber materials fail to have the comprehensive properties of light weight, heat preservation, rich color, enhanced infrared radiation selectivity, green and environment-friendly production process and the like, and more researches on novel fiber materials with comprehensive functions are needed.
Disclosure of Invention
In view of the technical problems, the invention provides a technical scheme of the heat-preservation composite fiber with controllable visible light-near infrared and infrared optical characteristics, and the components, proportion, structure and the like of the fiber are determined, so that a single fiber has the comprehensive properties of light weight, heat preservation, rich color, enhanced infrared radiation selectivity, green and environment-friendly production process and the like.
In order to solve the technical problems, the invention provides the following technical scheme:
a composite fiber consisting of a matrix, an air core, and infrared and visible-near infrared fillers distributed in the matrix;
the infrared filler is a nanorod made of a first metal material;
the visible light-near infrared filler is nanospheres made of a second metal material and/or nanospheres made of a full-medium material.
Preferably, the infrared filler and the visible-near infrared filler are periodically distributed according to the following rule: the infrared fillers form a first filler column, the visible-near infrared fillers form a second filler column, and the first filler column and the second filler column surround the air fiber core and are alternately arranged in the matrix.
Preferably, in the first filler column, the distance between infrared filler particles in the radial direction is 1-20 μm; and/or, in the axial direction, the spacing between the infrared filler particles is 1-20 μm;
in the second filler, the distance between the visible light and near infrared filler in the radial direction is 1-20 μm; and/or, in the axial direction, the spacing between the visible-near infrared fillers is 1-20 μm.
Preferably, the first metal material is one or more of gold, silver, copper and nickel.
Preferably, the nanorod is any one or more of a simple substance solid nanorod, a core-shell nanorod and a block nanorod.
Preferably, the diameter of the nanorod is 20-100nm, and the length-diameter ratio is 1:20-1: 150.
Preferably, the second metal material is one or more of gold, silver, copper and nickel; and/or
The all-dielectric material is any one or more of silicon, gallium arsenide, aluminum gallium arsenide and germanium.
Preferably, the nanospheres are simple substance solid nanospheres or nanospheres with core-shell structures;
preferably, the nanospheres have a diameter of 10-500 nm.
Preferably, the substrate is a polymer substrate or a mineral substrate;
optionally, the polymer matrix is any one or more of polymethyl methacrylate, polyamide, polyester, polyurethane, polyvinyl chloride, polypropylene, polyethylene imine;
optionally, the mineral substrate is fused silica.
Preferably, the diameter of the air core is 5-90% of the fiber diameter.
Advantageous effects
The technical scheme of the invention has the following advantages:
the composite fiber provided by the invention can realize the selective scattering enhancement effect of the fiber material in the wide band range of visible light (300nm-800nm) through the selection of the material and the particle size of the visible light filler nanosphere, so that the fiber has the effects of single color, light color mixed color or gradual color change;
the composite fiber provided by the invention can realize the selective radiation enhancement effect of the fiber material in the infrared (1-20 mu m) wide band range through the selection of the infrared filler nanorod material and the particle size, so that the fiber has the radiation enhancement effect of a single band, a multiband or a wide band in an infrared spectral region;
the composite fiber provided by the invention is used by combining two types of fillers and distributed according to a specific rule, and simultaneously realizes the modulation capability of the visible light-near infrared and infrared optical characteristics of the fiber material;
the air fiber core structure in the composite fiber provided by the invention enables the fiber to have good heat preservation and light effects;
the fiber color of the composite fiber provided by the invention is not subjected to a printing and dyeing process, and the composite fiber has the characteristics of greenness and no pollution.
Drawings
FIG. 1 is a perspective view of a composite fiber structure;
FIG. 2 is a cross-sectional view of a composite fiber structure;
FIG. 3 is the infrared enhancement spectrum and enhancement peak diagram of silver nanorods with different length-diameter ratios, wherein a is the infrared enhancement spectrum, and b is the infrared enhancement peak diagram.
In the figure: 1: a substrate; 2: an air core; 3: infrared filler; 4: visible-near infrared fillers.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The invention provides a composite fiber, as shown in fig. 1 and fig. 2, the composite fiber is composed of a matrix 1, an air fiber core 2, an infrared filler 3 and a visible light-near infrared filler 4 which are distributed in the matrix 1; the infrared filler 3 is a nanorod made of a first metal material; the visible light-near infrared filler 4 is nanospheres made of a second metal material and/or nanospheres made of a full-medium material.
More preferably, the infrared fillers 3 and the visible-near infrared fillers 4 are periodically distributed according to the following law: the infrared fillers 3 constitute a first filler row, the visible-near infrared fillers 4 constitute a second filler row, and the first filler row and the second filler row surround the air fiber core 2 and are alternately arranged in the matrix 1, referring to fig. 1.
The fiber of the invention is composed of a matrix 1, an air fiber core 2, an infrared filler 3 and a visible light-near infrared filler 4, wherein the main structure of the fiber structure is a hollow fiber, and the matrix 1 is mixed with two fillers: infrared fillers 3 and visible-near infrared fillers 4. It should be noted that the fiber can be prepared by the existing artificial fiber preparation method, the two types of fillers are uniformly mixed with the liquid matrix 1, and the composite fiber of the invention can be obtained by adopting the traditional hollow fiber spinning process. In a preferred embodiment, the two fillers exhibit a periodic distribution according to a specific law in the matrix 1, with reference to fig. 1, the infrared fillers 3 constitute a first filler row, the visible-near infrared fillers 4 constitute a second filler row, the first and second filler rows being arranged alternately in the matrix 1 around the air core 2. In this case, the composite fiber material can be obtained by using an electro-or magneto-induced particle dispersion method based on a conventional hollow fiber spinning process. The spinning temperature is not particularly limited, and is determined mainly by the melting point of the matrix 1, and the matrix 1 is made to have sufficient fluidity so that the filler can be uniformly dispersed and mixed therein. According to the mixing process, the same type of filler is better to obtain the same size, orientation and periodic distribution characteristics, the dispersion orientation of the filler is mainly regulated and controlled by the vector direction of an external physical field such as an electric field or a magnetic field, the distribution period (namely the distance between two particles of the same type of filler) is controlled by the strength of the external physical field, and the distance between the particles of the filler is preferably controlled to be 1-20 mu m after calculation according to the radiation scattering enhancement requirement. Therefore, it is further preferable that, in the first filler row, the spacing between the infrared filler 3 particles in the radial direction is 1 to 20 μm; and/or, in the axial direction, the spacing between the infrared filler 3 particles is 1 to 20 μm. In the second filler, the distance between the visible light-near infrared filler 4 in the radial direction is 1 to 20 μm; and/or, in the axial direction, the spacing between the visible-near infrared fillers 4 is 1 to 20 μm.
With respect to the substrate 1: the material of the substrate 1 may be a polymer substrate 1 or an inorganic substrate 1, and has characteristics of visible light transparency, drawability, and easy doping, including but not limited to: polymethyl methacrylate (PMMA), Polyamide (PA), Polyester (Polyester), Polyurethane (PU), polyvinyl chloride (Poly (vinyl chloride), PVC), polypropylene (PP), Polyethyleneimine (PEI), Fused Silica (Fused Silica).
With respect to the air core 2: the fiber core is an air fiber core 2, namely long-section static air is sealed in the fiber, and the fiber is mainly used for improving the heat retention of the fiber and reducing the volume quality of the fabric. The thermal conductivity of air in a closed state is 0.023W/m.k which is far lower than the thermal conductivity of the fiber matrix 1 material, so that the static air is helpful for enhancing the heat insulation property of the material and greatly improving the heat insulation property of the fiber. The diameter of the air fiber core 2 is controlled to be between 5 and 90 percent of the diameter of the fiber through a wire drawing process according to the heat preservation requirement and the quality requirement of the fiber material.
Regarding the infrared filler 3: the infrared filler 3 is a metal nanorod with a high length-diameter ratio. According to the principle of enhancing the local field of the nano material to electromagnetic radiation, the metal nanorods serving as the infrared filler 3 can be selected from materials including, but not limited to: gold/silver/copper/nickel and other simple substance nanorods, gold-silver/silver-copper/gold-copper core-shell structure nanorods, gold-silver/silver-copper/gold-copper and other block structure nanorods. The diameter of the nanorod is preferably 20nm-100nm, and the length-diameter ratio (namely the ratio of the length to the diameter) of the nanorod is preferably 1: 20-1:150. The nanorod local field enhancement effect designed above has the effect of radiation enhancement at different spectral positions within the 1-20 μm band or the effect of broad spectrum radiation enhancement.
With respect to the visible-near infrared filler 4: the visible light-near infrared filler 4 is selected from metal and all-dielectric nanospheres. The materials for the nanosphere as the visible light-near infrared filler 4 include, but are not limited to: gold/silver/copper/nickel and other elementary substance nanospheres, gold-silver/silver-copper/gold-copper core-shell structure nanospheres, silicon/gallium arsenide/aluminum gallium arsenide/germanium nanospheres and the like. The diameter of the nanoparticle is preferably 10nm to 500nm, depending on the enhancement requirements at different bands in the visible range. The nanosphere local field enhancement effect with the above design (material and size) has the effect of scattering enhancement at different positions within the range of 300-1000 nm. By selecting the particle size and the material of the nanospheres, the fibers can be undyed to enable the fibers to show a certain color, or the photochromic mixed fibers or gradient fibers can be realized by mixing different particles.
The following are examples of the present invention.
Example 1
a nylon substrate with the diameter of 50 microns is adopted, namely the substrate is made of Polyamide (PA);
an air fiber core with the diameter of 20 mu m is adopted, and accounts for 16 percent of the volume fraction of the fiber;
the silver nanorod infrared filler with the diameter of 60nm and the length-diameter ratio of 1:40nm (namely the length of 2400 nm) accounts for 20-30% of the volume fraction of the fiber, and the infrared enhancement peak is about 7-8 μm;
the germanium nanosphere visible light-near infrared filler with the diameter of 150nm accounts for 20-30% of the volume fraction of the fiber, and the visible light-near infrared waveband forward scattering enhancement peaks are about 550nm and about 739 nm;
the silver nanorod infrared filler and the germanium nanosphere visible light-near infrared filler are periodically distributed according to the following rule: the infrared fillers form a first filler column, the visible light-near infrared fillers form a second filler column, the first filler column and the second filler column surround the air fiber core and are alternately arranged in the matrix, and in the first filler column, the distance between infrared filler particles is 6-9 μm in the radial direction and the axial direction; in the second filler, the spacing between the visible light-near infrared filler is 6 to 9 μm in the radial direction and the axial direction.
The composite fiber is prepared by adopting a man-made fiber preparation method, the silver nanorod and the germanium nanosphere filler and the polyamide liquid matrix are uniformly dispersed and mixed according to the volume fraction, and the fiber material is obtained at a high temperature according to the traditional hollow fiber spinning process flow. During drawing, a circumferential or parallel flat plate type external electric field or an electric field is externally applied around the drawing equipment, and the filler mixed in the matrix is uniformly dispersed according to the designed orientation and the designed distance by adjusting the vector direction of the voltage and the electric (magnetic) field, so that the composite fiber is finally obtained.
The composite fiber has a selective scattering enhancement effect in a visible light (300nm-800nm) wide band range, so that the fiber presents a monochromatic, photochromic color mixing or gradient color effect, and simultaneously, the composite fiber presents a single-band, multiband or wide-band radiation enhancement effect in an infrared spectral region by virtue of a selective radiation enhancement effect in an infrared (1-20 mu m) wide band range, namely, the composite fiber material has the modulation capability of visible light-near infrared and infrared optical characteristics. In addition, the air fiber core structure enables the fiber to have good heat preservation and light effects, and the color of the composite fiber is not subjected to a printing and dyeing process, so that the composite fiber has the characteristics of being green and free of pollution.
Examples 2 to 46
Examples 2 to 46 are substantially the same as example 1 except that the silver nanorod infrared fillers have lengths of 500nm, 600nm, 700nm, 800nm, 900nm, 1000nm,,,,, 2300nm, 2500nm, 2600nm, 2700nm, 2800nm, 2900nm, 3000nm, 3100nm,,,,,,,, 4500nm, 4600nm, 4700nm, 4800nm, 4900nm, and 5000nm, respectively.
The infrared fillers of examples 1 to 46 have different aspect ratios, and the infrared enhancement spectrum and the enhancement peak for each aspect ratio are shown in FIG. 3.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The composite fiber is characterized by comprising a matrix, an air fiber core, an infrared filler and a visible light-near infrared filler, wherein the infrared filler and the visible light-near infrared filler are distributed in the matrix;
the infrared filler is a nanorod made of a first metal material; the nanorod has the diameter of 20-100nm and the length-diameter ratio of 1:20-1: 150;
the visible light-near infrared filler is nanospheres made of a second metal material and/or nanospheres made of a full-medium material; the diameter of the nanosphere is 10-500 nm;
the infrared filler and the visible light-near infrared filler are periodically distributed according to the following rule: the infrared fillers form a first filler column, the visible-near infrared fillers form a second filler column, and the first filler column and the second filler column surround the air fiber core and are alternately arranged in the matrix;
in the first filler column, the distance between infrared filler particles in the radial direction is 1-20 μm; and/or, in the axial direction, the spacing between the infrared filler particles is 1-20 μm;
in the second filler, the distance between the visible light and near infrared filler in the radial direction is 1-20 μm; and/or, in the axial direction, the spacing between the visible-near infrared fillers is 1-20 μm.
2. The composite fiber according to claim 1,
the first metal material is one or more of gold, silver, copper and nickel.
3. The composite fiber according to claim 1,
the nano rod is one or more of a simple substance solid nano rod, a core-shell structure nano rod and a block structure nano rod.
4. The composite fiber according to claim 1,
the second metal material is one or more of gold, silver, copper and nickel; and/or
The all-dielectric material is any one or more of silicon, gallium arsenide, aluminum gallium arsenide and germanium.
5. The composite fiber according to claim 1,
the nanospheres are simple substance solid nanospheres or nanospheres with core-shell structures.
6. The composite fiber according to claim 1,
the substrate is a polymer substrate or an inorganic substrate.
7. The composite fiber according to claim 6,
the polymer matrix is any one or more of polymethyl methacrylate, polyamide, polyester, polyurethane, polyvinyl chloride, polypropylene and polyethyleneimine.
8. The composite fiber according to claim 6,
the inorganic substrate is fused silica.
9. The composite fiber according to claim 1,
the diameter of the air fiber core accounts for 5-90% of the fiber diameter.
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| CN202010523544.1A CN111647969B (en) | 2020-06-10 | 2020-06-10 | Composite fiber |
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| CN111647969B true CN111647969B (en) | 2022-08-05 |
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2020
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