KR102134289B1 - Synthetic yarn complex, a method for producing the same, fibers containing the same, and clothes containing the fibers - Google Patents

Abstract

The present invention relates to a synthetic yarn composite, a method for manufacturing the same, a fiber comprising the same, and clothing containing the fiber, wherein the synthetic yarn composite is dispersed in a nanoparticle and a nanoparticle comprising a compound having a carboxyl group and a conductive polymer By including the synthetic yarn, it is possible to satisfy the antimicrobial and thermal insulation properties, it is possible to provide a fiber or clothing or the like having excellent washing fastness and mechanical properties.

Description

Synthetic yarn complex, a method for producing the same, fibers containing the same, and clothes containing the fibers}

The present invention relates to a synthetic yarn composite, a method for manufacturing the same, a fiber containing the same, and a garment containing the fiber. More specifically, the present invention relates to a synthetic yarn composite comprising a compound having a carboxyl group and a nanoparticle having a conductive polymer, a method for manufacturing the same, a fiber containing the same, and a garment including the fiber.

Recently, as a variety of sports activities have become popular, the demand for high-performance sports apparel products is steadily increasing. In particular, textile products having a heating function are being commercialized. Initially, thermal insulation materials aimed at insulation to prevent heat loss generated at body temperature were introduced, but recently, electric heating materials, chemical reaction heating thermal insulation materials, and solar thermal storage thermal insulation materials (e.g. zirconium carbide (ZrC) inside the fabric) A method that absorbs near-infrared rays and heats them with heat energy and heats them with the human body to impart warmth) is introduced into clothes.

Conductive polymer (PCPDTBT) is a material that has various effects (photothermal effect, photoacoustic, photocatalyst) by absorbing sunlight and releasing energy. The conductive polymer is an organic semiconductor having a low band gap, and can absorb sunlight, and when the conductive polymer is manufactured in the form of nanoparticles, it effectively absorbs light energy and is released as heat. Therefore, it can be applied as a heat insulating fiber material in that it can effectively absorb sunlight and emit it as heat.

However, the particles having the conventional functionality are limited in the thickness of the yarn with a micron size, and there is a limitation in imparting functionality due to a thread trimming problem due to radiation due to the functional particles. In addition, the functional particle treatment of the micron unit has a problem in durability since the particles are simply adhered to the surface while reducing the air permeability or touch of the fiber. Accordingly, there is a need for research on a method of exerting a specific function without impairing the original function of the fiber using nanotechnology and improving durability through permanent bonding.

Republic of Korea Registered Patent No. 10-1577403

An object of the present invention is to provide a synthetic yarn composite comprising a compound having a carboxyl group and a nanoparticle having a conductive polymer, a method for manufacturing the same, a fiber containing the same, and a garment including the fiber.

The present invention,

Synthetic yarn; And

Containing nanoparticles dispersed in the synthetic yarn,

The nanoparticles provide a synthetic yarn composite comprising a compound having a carboxyl group and a conductive polymer.

In addition, the present invention,

Preparing a nanoparticle by mixing a compound having a carboxyl group and a conductive polymer;

Preparing a mixed solution by mixing the nanoparticles and fibers in a solvent; And

It provides a method for producing a synthetic yarn composite comprising the step of preparing a yarn by wet spinning the mixed solution.

In addition, the present invention,

It provides a fiber comprising the synthetic yarn composite.

In addition, the present invention,

It provides an apparel comprising the fiber.

The synthetic yarn composite according to the present invention can satisfy the antibacterial and thermal insulation properties by uniformly distributing nanoparticles including a compound having a carboxyl group and a conductive polymer in the synthetic yarn. In addition, it is possible to provide fibers or clothing having excellent washing fastness and mechanical properties.

1 (a) shows a conductive polymer, a compound having a carboxyl group, and one type of synthetic yarn, and (b) is a schematic diagram showing a binding form of a conductive polymer and a compound having a carboxyl group in nanoparticles according to an embodiment. will be.
2 is a UV spectrum graph for nanoparticles according to Example 1 and Comparative Example 1.
3 is an image of the nanoparticles prepared in Example 1 photographed with a field emission scanning electron microscope (a) and a transmission electron microscope (b).
4 is a graph obtained by analyzing the composite prepared in Example 1 by grazing angle X-ray diffraction, (a)-(c) is a 2D GIXD pattern graph, and (d), (e) are diffraction peaks of qtz and qrz It is a graph showing.
FIG. 5 is a photograph showing the results of antimicrobial experiments performed on a film containing the synthetic yarn composite prepared in Example 1.
6 is an image (a) of the surface of the fiber containing the synthetic yarn composite prepared in Example 2 with a field emission scanning electron microscope (FE-SEM) and the cross section of the fiber as a transmission electron microscope (TEM) It is a captured image (b).
7 is an image (a) taken with an optical microscope (OM) and an image taken with a microscope (FM) in Example 2 (b).
Figure 8 shows the tensile strength of the pure PAN fiber (Sample 0), PAN/CPN nanocomposite fibers before weaving the fabric (Sample 1), and before washing (Sample 2)/washing (Sample 3) of the nanocomposite fibers. It is a drawing.
9 is a photograph showing an image of a fabric based on pure PAN fiber and synthetic fiber nanocomposite fiber after washing ((a) fabric based on PAN fiber and synthetic nanocomposite fiber, (b), (c) enlarged view of the fiber ).
10 is a graph of temperature change for 60 minutes after light removal and 60 minutes after light removal while irradiating light on a fabric based on pure PAN fiber and synthetic fiber nanocomposite fiber after washing.
FIG. 11 is an image showing near infrared (NIR) for temperature change during 60 minutes after light removal and 60 minutes after light removal while irradiating light on a fabric based on pure PAN fiber and synthetic fiber nanocomposite fiber after washing.

The present invention can be applied to various changes and can have various embodiments, and specific embodiments will be illustrated in the drawings and described in detail in the detailed description.

However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In the present invention, terms such as “comprises” or “have” are intended to indicate that there are features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, and one or more other features. It should be understood that the existence or addition possibilities of fields or numbers, steps, operations, components, parts or combinations thereof are not excluded in advance.

In addition, the accompanying drawings in the present invention should be understood to be shown enlarged or reduced for convenience of description.

The present invention relates to a synthetic yarn composite, a method for manufacturing the same, a fiber containing the same, and a garment containing the fiber.

Particles with conventional functionality have a micron size limitation on the thickness of the yarn, and due to the functional particles, a thread trimming problem occurs during radiation, thereby limiting the functionality. In addition, the functional particle processing in the micron unit has a problem in durability because the particles are simply adhered to the surface while reducing the air permeability or touch of the fibers. Accordingly, there is a need for research on a method of exerting a specific function without impairing the original function of the fiber using nanotechnology and improving durability through permanent bonding.

Accordingly, the present invention is a nanoparticle containing a compound having a carboxyl group and a conductive polymer uniformly distributed in a synthetic yarn, thereby providing a composite that satisfies both antimicrobial and thermal insulation properties, a method for manufacturing the same, a fiber comprising the same, and a film comprising the same to provide.

Hereinafter, the present invention will be described in more detail.

The present invention, in one embodiment,

Synthetic yarn; And

Containing nanoparticles dispersed in the synthetic yarn,

The nanoparticles provide a synthetic yarn composite comprising a compound having a carboxyl group and a conductive polymer.

Synthetic yarn may be a synthetic fiber having a polarity, specifically, the synthetic fiber having a polarity may be nylon, urethane, acrylic, or ester fibers. More specifically, the synthetic fiber having the polarity may be nylon, urethane, or acrylic fiber, and preferably acrylic fiber. As an example, the synthetic fiber having polarity may be polyacrylonitrile (PAN) fiber. Synthetic yarns may include a synthetic fiber having the finest shape as described above, thereby forming hydrogen bonds with nanoparticles, which will be described later, to uniformly distribute nanoparticles in the synthetic yarns.

Nanoparticles according to an embodiment of the present invention may have a structure in which a compound having a carboxyl group and a conductive polymer are combined. The alkyl group of the compound having the carboxyl group and the alkyl group of the conductive polymer (for example, ethylhexyl group of PCPDTBT) may be bonded by hydrophobic attraction.

In addition, the nanoparticles include a compound having a carboxyl group and a conductive polymer, and the molar ratio of the compound having a carboxyl group and the conductive polymer may be 20:1 to 1:20. More specifically, the molar ratio of the compound having a carboxyl group and the conductive polymer may be 18:1 to 5:10, 16:1 to 10:6, or 13:1 to 11:2. By having such a ratio of a compound having a carboxyl group and a conductive polymer, it is possible to provide a synthetic yarn composite having excellent antibacterial and exothermic properties.

Meanwhile, the compound having a carboxyl group may be a fatty acid having 5 to 14 carbon atoms, and the fatty acid having a carbon number of 5 to 14 may be octanoic acid, decanoic acid, or dodecanoic acid. As an example, the fatty acid having 5 to 14 carbon atoms may be octanoic acid. When the nanoparticles include the fatty acid as described above, it is possible to provide a synthetic yarn composite excellent in antibacterial and exothermic properties. In addition, fibers and fabrics having excellent mechanical strength and fastness to washing can be obtained.

In addition, the conductive polymer may have an electron donor and electron acceptor structure in the structure. The conductive polymer has an electron donor and electron acceptor structure in the structure, and thus can be π-conjugated with polar synthetic fibers. Specifically, the conductive polymer may have a sulfur atom and/or a nitrogen atom in the structure, and may have an alkyl group having 5 to 15 carbon atoms in the structure. In addition, the conductive polymer may have thiophene and benzothiadiazole sites in the structure.

As an example, the conductive polymer may be at least one selected from the group consisting of polythiophene polymer, polypyrrole polymer polyfluorene polymer, polyacetylene polymer, polythiodiazole polymer and polyaniline polymer. Specifically, the conductive polymer is (poly(cylcopentadithiophene-alt-benzothiadiazole), (poly(acenaphthothienopyrazine-alt-benzodithiophene)), Poly(2,5-bis(2-hexyldecyl)-3-(5-methylthiophen-2-yl) )pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione), poly[9,9-bis(4-(2-ethylhexyl) phenyl)fluorene- alt-co -6,7- bis(4-(hexyloxy)phenyl)-4,9-di-(thiophen-2-yl)thiadiazolo-quinoxaline], poly{3-(5-(9-hexyl-9-octyl-9H-fluoren-2- yl)thiophen-2-yl)-2,5-bis(2-hexyldecyl)-6-(thiophen-2-yl)pyrrolo(3,4-c)pyrrole-1,4(2H,5H)-dione} , Poly[9,9-bis(4-(2-ethylhexyl)phenyl)-fluorene-alt-co-6,7-bis(4-(hexyloxy)phenyl)-4,9-di-(thiophen-2- yl)thiadiazolo-quinoxaline] and poly(9,9-dihexylfluorene-alt-2,1,3-benzothiadiazole). More specifically, (poly(cylcopentadithiophene-alt-benzothiadiazole) , (poly(acenaphthothienopyrazine-alt-benzodithiophene)), Poly(2,5-bis(2-hexyldecyl)-3-(5-methylthiophen-2-yl)pyrrolo[3,4-c]pyrrole-1,4( 2H,5H)-dione) and poly(9,9-bis(4-(2-ethylhexyl) phenyl)fluorene- alt-co -6,7-bis(4-(hexyloxy)phenyl)-4,9-di -(t hiophen-2-yl)thiadiazolo-quinoxaline]. By including the conductive polymer as described above, it has the property of absorbing light energy having a wavelength of 400 to 1000 nm, which is a main component of sunlight, and converting the energy into thermal energy, and the synthetic yarn composite according to the present invention can exhibit excellent heat retention properties. Meanwhile, the absorption wavelength range of the nanoparticles may be different depending on the type of the conductive polymer. For example, when the conductive polymer is PCPDTBT, the maximum absorption wavelength of the nanoparticles may be 780 to 810 nm.

The nanoparticles may be spherical, and the nanoparticles may have an average diameter of 20 to 500 nm. Specifically, the nanoparticles have an average size of 20 to 500 nm, 30 to 480 nm, 40 to 460 nm, 50 to 440 nm, 60 to 420 nm, 70 to 400 nm, 80 to 380 nm, 90 to 360 nm, It may be 100 to 340 nm, 110 to 320 nm, 120 to 300 nm, 130 to 280 nm, 140 to 260 nm, 150 to 240 nm, or 160 to 230 nm.

In addition, the content of the nanoparticles may be 0.1 to 5.0 parts by weight based on 100 parts by weight of the synthetic yarn. Specifically, the content of the nanoparticles may be 0.2 to 4.0 parts by weight, 0.3 to 3.0 parts by weight, 0.4 to 2.0 parts by weight, 0.5 to 1.0 parts by weight, or 0.6 to 0.8 parts by weight based on 100 parts by weight of the synthetic yarn. When the nanoparticles are contained in the above content, it is possible to provide a synthetic yarn composite having excellent antibacterial and exothermic properties. In addition, fibers and fabrics having excellent mechanical strength and fastness to washing can be obtained by including the nanoparticles in the above content.

For example, the nanoparticles may have a structure uniformly dispersed in synthetic yarn. Specifically, nanoparticles in the synthetic yarn may be bonded through hydrogen bonding. It may be a structure in which a compound containing a carboxylic acid on the surface of the nanoparticle and a secondary amine group of synthetic yarn are connected through hydrogen bonding. Through the hydrogen bonding, nanoparticles may be uniformly distributed in the synthetic yarn.

In addition, the present invention comprises the steps of preparing a nanoparticle by mixing a compound having a carboxyl group and a conductive polymer;

Preparing a mixed solution by mixing the nanoparticles and fibers in a solvent; And

It provides a method for producing a synthetic yarn composite comprising the step of preparing a yarn by wet spinning the mixed solution.

As an example, the step of manufacturing nanoparticles may be performed by irradiating 10 to 100 kHz ultrasonic waves for 1 minute to 10 minutes. Specifically, the step of manufacturing the nanoparticles may be performed by irradiating ultrasonic waves of 20 to 60 kHz for 1 minute to 5 minutes. Through this, a compound containing a conductive polymer and a carboxyl group can be uniformly mixed.

Specifically, in the step of preparing nanoparticles, the fatty acid relative to 1 mole of the conductive polymer may be mixed in a molar ratio of 5 to 20. More specifically, the molar ratio of the compound having the carboxyl group and the conductive polymer in the step of preparing nanoparticles may be 20:1 to 1:20. More specifically, the molar ratio of the compound having a carboxyl group and the conductive polymer may be 18:1 to 5:10, 16:1 to 10:6, or may be mixed from 13:1 to 11:2. When mixed in the above ratio, it is possible to manufacture a composite having excellent antibacterial and heat generating properties at the same time, and through this, fibers and fabrics having excellent mechanical properties and fastness to washing can be produced. The conductive polymer and the fatty acid can independently prepare each solution using any one or more of chloroform, tetrahydrofuran, toluene, xylene, hexane and chlorobenzene as a solvent. Specifically, chloroform, toluene, or hexane may be used as the solvent independently in preparing a compound solution having each conductive polymer and carboxyl group.

In addition, when mixing a conductive polymer solution and a compound solution having a carboxyl group, any one or more of dimethyl formamide (DMF) or dimethyl sulfoxide (DMSO) and N-methyl-2-pyrrolidone (NMP) may be used. Specifically, dimethyl formamide (DMF) or dimethyl sulfoxide (DMSO) may be used as a solvent in the step of preparing the complex.

As an example, a solution of a compound having a conductive polymer and a compound having a carboxyl group may be stirred at room temperature (20 to 25°C) for 30 minutes to 2 hours before irradiating ultrasound in the step of preparing the nanoparticles. Specifically, the solution in which the conductive polymer and the compound having a carboxyl group are mixed may be stirred at 25°C for 30 minutes to 60 minutes. In the case of stirring as described above, a compound having a conductive polymer and a carboxyl group reacts sufficiently to help nanoparticle formation.

In the step of preparing the nanoparticles, nanoparticles may be prepared by stirring for 2 hours to 4 hours at a temperature of 50°C to 100°C before being added to the fiber solution after preparing the nanoparticles by irradiating ultrasound. Specifically, the nanoparticles may be prepared by evaporating the solvent by stirring at a temperature of 70°C to 90°C for 2 hours to 3 hours.

As one example, the nanoparticles prepared in the step of manufacturing a synthetic yarn composite may be mixed in an amount of 0.2 to 1.5 parts by weight based on 100 parts by weight of the synthetic yarn. Specifically, it may be 0.1 to 5.0 parts by weight based on 100 parts by weight of the synthetic yarn of the prepared nanoparticles. Specifically, the content of the nanoparticles may be mixed in 0.2 to 4.0 parts by weight, 0.3 to 3.0 parts by weight, 0.4 to 2.0 parts by weight, 0.5 to 1.0 parts by weight, or 0.6 to 0.8 parts by weight based on 100 parts by weight of the synthetic yarn. When the nanoparticles are mixed in the above content, the synthetic yarn composite prepared in the present invention may simultaneously exhibit excellent exothermic properties having excellent antibacterial properties.

In the step of preparing the complex, any one or more of dimethyl formamide (DMF) or dimethyl sulfoxide (DMSO) and N-methyl-2-pyrrolidone (NMP) may be used as a solvent. Specifically, dimethyl formamide (DMF) or dimethyl sulfoxide (DMSO) may be used as a solvent in the step of preparing the complex.

In addition, the present invention provides a fiber comprising a synthetic yarn composite according to the present invention.

Specifically, the fiber according to the present invention is a synthetic yarn; And nanoparticles dispersed in the synthetic yarn,

The nanoparticles may include a synthetic yarn complex comprising a compound having a carboxyl group and a conductive polymer.

As an example, the fiber according to the present invention may be manufactured through electrospinning, and accordingly, the diameter of the fiber may be variously determined according to the diameter of a hole of a radiator that emits the fiber. Specifically, the average diameter of the fibers may be 0.5 to 100 μm. More specifically, the average diameter of the fibers may be 1 to 80 μm, 5 to 60 μm, 10 to 40 μm, or 15 to 30 μm.

As another example, the fiber according to the present invention may provide a fiber having excellent antimicrobial and heat retention properties by including nanoparticles in which a compound having a conductive polymer and a carboxyl group is complexed.

In addition, the present invention provides clothing comprising the fibers according to the present invention.

Specifically, the fiber according to the present invention is a synthetic yarn; And

Containing nanoparticles dispersed in the synthetic yarn,

The nanoparticles may include a synthetic yarn composite comprising a compound having a carboxyl group and a conductive polymer.

As an example, the clothing according to the present invention may mean a kind of fabric, and the fabric may be knitted by combining with synthetic fibers such as acrylic for convenience.

As another example, the clothing according to the present invention can provide a fiber having excellent antibacterial and heat retention properties by including nanoparticles in which a compound having a carboxyl group and a conductive polymer are combined. In addition, the garment may have excellent wash fastness and mechanical properties.

Hereinafter, the present invention will be described in more detail by examples and experimental examples.

However, the following examples and experimental examples are merely illustrative of the present invention, and the contents of the present invention are not limited to the following examples and experimental examples.

<Example>

Example 1. Preparation of synthetic yarn composite

Preparation of nanoparticles

An octanoic acid solution was prepared by adding 74 mg of octanoic acid to 10 ml of chloroform. 2.2 ml of the prepared octanoic acid solution was mixed with 20 ml of dimethyl sulfoxide (DMSO) stirred at 1500 rpm to prepare a mixed solution and stirred for 15 minutes. Then, poly[2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b′]-dithiophene)-alt-4 in 1 ml of chloroform, 7-(2,1,3-benzothiadiazole]] (PCPDTBT) 5 ml of a PCPDTBT solution dissolved in 1 mg was added dropwise to the mixed solution and stirred for 1 hour, wherein the molar ratio of PCPDTBT and OA (octanoic acid) was 1: 12, the concentration of PCPDTBY was 0.94 μM and the concentration of octanoic acid was mixed to 11.29 μM The mixed solution that was subjected to the stirring process was further ultrasonicated in a bath type ultrasonic cleaner at a frequency of 40 kHz for 5 minutes at room temperature, 1500 rpm. The nanoparticle solution was prepared by completely evaporating chloroform by heating at 80° C. for 3 hours with stirring (see FIG. 1 ).

Synthetic yarn composite production

18.5 wt% of PAN (Polyacrylonitrile) was dissolved in dimethyl sulfoxide (DMSO), and the nanoparticle solution prepared in DMSO was mixed to contain 0.75 weight ratio of nanoparticles compared to PAN. Thereafter, a solution containing PAN and nanoparticles was poured into a petri dish and dried in a vacuum oven at 25° C. for 48 hours to prepare a composite, and the composite was prepared as a film having a diameter of 5 cm.

Comparative Example 1.

A nanoparticle solution was prepared in the same manner as in Example 1, except that octanoic acid was not added to chloroform.

Example 2. Preparation of fibers comprising synthetic yarn composite

Polyacrylonitrile (PAN) was dissolved in dimethyl sulfoxide (DMSO) by 18% by weight (DMSO:PAN=82:18), and the nanoparticle solution prepared in DMSO was mixed to contain 0.75 weight ratio of nanoparticles compared to PAN. And, the mixed solution was made of PAN carbon fibers through a lab-scale wet-spinning machine.

Comparative Example 2.

Conventional PAN-based fibers containing no nanoparticles were prepared (Average Mw=150,000 g/mol, Sigma-Aldrich).

Example 3. Preparation of fabric comprising synthetic yarn composite

Using the fibers prepared in Example 2, each of the 5 cm × 5 cm sized knitted fabrics was knitted by hand knitting. At this time, 1 ply of commercially available acrylic yarn (100% acrylic yarn, 3/80 nm) was combined with each sample 6 ply for reinforcement, and knitted with a plain stitch.

Comparative Example 3

Fabrics were prepared in the same manner as in Example 3, except that PAN wet-spun fibers were used.

Experimental Example 1. Characterization of nanoparticles

1-1. UV-Vis absorbance measurement of nanoparticles

In order to confirm the optical properties of the nanoparticles prepared in Example 1, UV-Vis absorbance experiments were performed on the nanoparticles prepared in Example 1 and Comparative Example 1, and the results are shown in FIG. 2.

2 is a UV absorption spectrum graph for the nanoparticles prepared in Example 1 and Comparative Example 1. Specifically, UV absorption experiments were performed using nanoparticles (PCPDTBT:OA=1:12 mol%) particles and a conductive polymer dissolved in a conductive solvent (Comparative Example 1) as a comparative example.

Referring to FIG. 2, it was confirmed that nanoparticles including a conductive polymer (PCPDTBT) combined with a compound having a carboxyl group exhibit improved optical properties. Specifically, when PCPDTBT was dissolved in chloroform as a single chain, it showed the maximum absorption at 718 nm, reflecting the intramolecular electron delocalization of the conjugated backbone. On the other hand, the nanoparticles of Example 1 exhibited the maximum absorption at 796 nm, and this change indicates that the conjugate chain of the octanoic acid alkyl chain and the conductive polymer are mutually bonded.

1-2. Check the shape of nanoparticles

To confirm the morphology of nanoparticles according to the present invention, field emission scanning electron microscope (FE-SEM) and transmission electron microscope (Transmission Electron Microscope) for the nanoparticles prepared in Example 1 TEM), and the results are shown in FIG. 3.

FIG. 3 is an image of the nanoparticles prepared in Example 1 photographed using a field emission scanning electron microscope (a) and a transmission electron microscope (b).

Referring to FIG. 3, it was confirmed that the nanoparticles had a spherical shape, and the nanoparticles were confirmed to have an average diameter of 185.8 ± 16.7 nm.

1-3. X-ray diffraction measurement of grazing angle of nanoparticles

Graining-Incidence X-ray Diffraction (GIXD) was measured on the nanoparticles prepared in Examples in order to confirm the composition of the nanoparticles according to the present invention and the bonding properties between the components, The measured results are shown in FIG. 4.

4 is a graph obtained by analyzing the composite prepared in Example 1 by grazing angle X-ray diffraction, (a)-(c) is a 2D GIXD pattern graph, and (d) and (e) are diffraction peaks of qtz and qrz It is a graph showing. For reference, FIG. 4(a) is a 2D GIXD pattern graph of nanoparticles (Example 1), (b) an octanoic acid film, and (c) a PCPDTBT film.

Specifically, the molecular aggregate structure of the nanoparticles was investigated using GIXD after drop casting and drying the nanoparticle solution in DMSO on a silicon substrate. As a comparative example, GIXD was measured after drop casting and drying of chloroform solutions of PCPDTBT and OA.

The 2D GIXD pattern of Figure 4(a) does not clearly show the characteristic peaks of the OA film (Figure 4(b)), but clearly shows peaks similar to the PCPDTBT film (Figure 4(c)). In addition, referring to FIG. 4(d), the three PCPDTBT peaks displayed in the inline plane cutting of 2D images of q = 0.550, 1.063 and 1.610Å-1 correspond to (110), (004) and (150), (Space group = Pbcn, a = 12.9 Å, b = 19.8 Å, c = 23.6 Å) It shows the plane of crystalline PCPDTBT. At q = 1.610Å-1, the (150) plane corresponds to d = 3.9Å and represents the π-π stacking distance between the conjugated surfaces of PCPDTBT in the nanoparticles. These three characteristic peaks of crystalline PCPDTBT become more apparent when the PCPDTBT chain is assembled with OA, as shown in Figure 4(d), which means that the conjugated backbone is closely related to each other and the resulting intermolecular electron gastric goods Indicates that it causes hydrochromic shift in the absorption spectrum.

On the other hand, OA shows two distinct peaks in the one-dimensional (1D) planar cutout of the 2D GIXD image at q = 0.594 (d = 10.6 mm) and 1.850 mm -1 (d = 3.4 mm). The estimated d spacing from the two peaks is similar to the length of the OA and the size of the polar head, indicating that the carboxylic acid bound by hydrogen bonding in the OA film contributes to the diffraction peak.

In nanoparticles, after assembling with PCPDTBT, this characteristic peak of OA disappears, which means that the OA molecule is integrated with the PCPDTBT chain of CPN.

Experimental Example 2. Evaluation of antibacterial properties of synthetic yarn composites

In order to evaluate the antibacterial properties of the synthetic yarn composite according to the present invention, the following experiment was performed.

(1) Antibacterial

Evaluation experiments were conducted using the synthetic yarn composite (PAN film containing conductive polymer nanoparticles) prepared in Example 1. And the results are shown in Fig. 5 and Table 1.

<Experiment Method>

-Used strain: strain 1-Staphylococcus aureus ATCC 6538P

Strain 2-Escherichia coli ATCC 8739

-Standard coating film: Stomacher 400ⓡ POLY-BAG

-Test conditions: Test cells were measured at 35 ± 1 ℃, RH 90 ± 5 %, and then allowed to stand for 24 hours to measure the number of bacteria.

-Sample surface area: Referral conditions

-Antibacterial activity (S): log(M _b / M _c ), reduction rate (%): [(M _b -M _c ) / M _b ] × 100

-Proliferation value (F): log(M _b / M _a ) (1.5 or more)

-M _a : Average of the number of live cells immediately after inoculation of the test sample of the standard sample (3 samples)

-M _b : Average of the number of live bacteria after incubation for a certain time (24 hours) of the standard sample (3 samples)

-M _c : Average number of live bacteria after incubation for a certain period of time (24 hours) of antibacterial processing sample (3 samples)

Sample Inoculum concentration
(CFU/mL) Proliferation (F) M _a
(CFU ^d /ml) M _b
(CFU/ml) M _c
(CFU/ml) Antibacterial activity (S) Decrease rate (%) Test strain 1
S. aureus
(Staphylococcus aureus ATCC 6538P) PAN:CPN
(0.75 wt%) 2.4 × 10 ⁵ 1.6 2.4 × 10 ⁵ 1.2 × 10 ⁷ <10 6.1 99.9 Test strain 2
E. coli
(Escherichia coli ATCC 8739) PAN:CPN
(0.75 wt%) 2.3 × 10 ⁵ 1.7 2.3 × 10 ⁵ 1.2 × 10 ⁷ <10 6.1 99.9

5 is a photograph showing the results of the antimicrobial experiment conducted on the film containing the composite of the embodiment. The upper image (corresponding to a-0 to a-1) is the experimental data of test strain 1, and the lower image (corresponding to b-0 to b-1) is the experimental data of test strain 2.

Referring to FIG. 5 and Table 1, the antibacterial experiment was compared with empty samples (a-0, b-a) for convenience. Representative Gram-positive and Gram-negative bacteria S.aureus and E.coli were cultured in empty petri dishes and synthetic yarn complexes, respectively. Specifically, the synthetic yarn composite prepared in Example 1 was incubated at 35° C. for 24 hours, and the antibacterial activity values of representative Gram-positive and Gram-negative S.aureus and E.coli were 6.1, and the reduction rate was 99.9%. It showed excellent antibacterial activity.

Experimental Example 3. Confirmation of properties of fibers containing synthetic yarn composites

In order to confirm the shape of the fiber containing the synthetic yarn composite according to the present invention, a field emission scanning electron microscope (FE-SEM), a transmission electron microscope for the fibers prepared in Example 2 Transmission Electron Microscope, TEM), optical microscopy (Optical Microscope, OM) and fluorescence microscopy (Fluorescence Microscope, FM) were photographed, and the results are shown in FIGS. 6 and 7.

FIG. 6 is an image of the fiber prepared in Example 2 photographed using a field emission scanning electron microscope (a) and a transmission electron microscope (b). 6(a), in the case of the fiber prepared in Example 2, nanoparticles were observed as bright spots on the fiber surface. In addition, looking at (b) of FIG. 6, it was confirmed that nanoparticles appearing as dark fine particles were uniformly distributed on the PAN fiber.

7 is an image taken with an optical microscope (OM) of the fiber prepared in Example 2, (a) is an optical image measured without an optical filter, (b) is an optical image when irradiated with 650 nm light. Referring to FIG. 7, the average diameter of the fibers was 19.84 ± 0.98 μm, and it was confirmed that light was emitted during light irradiation.

Through this, it can be seen that the fiber according to the present invention has a structure in which nanoparticles including a conductive polymer and a compound having a carboxyl group are uniformly distributed on a synthetic yarn.

Experimental Example 4. Measurement of mechanical properties of fibers containing synthetic yarn composites

In order to measure the mechanical properties of the fiber containing the synthetic yarn composite, the tensile strength of the fiber was measured. Pure PAN fibers were used as a comparative example, and the durability of the PAN fibers (Comparative Example 2) and the fibers of Example 2 before and after washing were measured, and the results are shown in FIG. 8.

The breaking force of four single filaments separated from pure PAN fiber (Sample 0), PAN/CPN nanocomposite fiber (Example 2) (Sample 1) before knitting the fabric was measured, and the nanocomposite fiber The breaking force before (Sample 2) and after (Sample 3) washing in (Example 2) was measured.

FIG. 8 shows pure PAN fiber (Comparative Example 2) (Sample 0), PAN/CPN nanocomposite fiber before knitting fabric (Example 2) (Sample 1), before washing (Sample 2)/washing of the nanocomposite fiber It is a diagram showing the tensile strength of the latter (sample 3).

Referring to FIG. 8, the average breaking forces of samples 0, 1, 2, and 3 were 4.68±0.36, 5.74±0.25, 5.27±0.17, and 5.13±0.29 cN, respectively. It can be converted to 151.28, 185.78, 170.54 and 165.94 MPa tensile strength for fibers with an average diameter of 19.84 μm, respectively.

The tensile strengths for Samples 2 and 3 are 91.8% and 89.4% compared to the tensile strength of Sample 1, indicating that a loss of about 10% in mechanical properties occurs during the knitting and denting process of the fabric. In addition, the breaking force of the pure PAN fiber (Sample 0) was 22% lower than that of the PAN/CPN nanocomposite fiber (Sample 1) before knitting.

This shows that the nanoparticles are uniformly distributed in the PAN fiber, thereby improving the mechanical properties.

Experimental Example 5. Washing fastness test

In order to determine the suitability of the acrylic fiber containing the nanocomposite having the heat storage function prepared in Example 3 and the fiber of Comparative Example 3 as a material for clothing, the discoloration before and after washing by condition and the photothermal heat retention properties were evaluated. , It was compared.

The application standard of the washing test was tested under four conditions referring to'KS K ISO 105-C06: 2014 Fastness to Home and Commercial Washing' (Ref:'AATCC Test Method 61-2010 Colorfastness to laundering: Accelerated'). Conditions are shown in Table 2. In addition, the sample was not dyed, so no attached white cloth was used.

For reference, the test principle is an accelerated laundering test for evaluating changes in fabric discoloration and surface changes caused by friction and detergent action during repeated washing in a short time. And used a stainless steel ball. However, in view of the fact that the sample used in this experiment is a functional material, no steel balls were used in this washing test.

The test device was a Launder-Ometer (revolution speed: 40±2/min, water temperature in the water tank=regulated temperature ±2°C), a stainless container, and the detergent and detergent solution were fluoresced according to KS K ISO 105-C06: 2014 ECE detergent with phosphate containing no brightener was used, and 4 g of standard detergent was dissolved in 1 L of water. Table 3 shows the composition of the standard detergent. Sodium perborate with bleach was not added to the detergent.

Specimen Washing temperature Laundry time Liquid capacity Detergent Washing method Comparative Example 3 Example 3 A1 B1 40℃ 30min 150mL ECE 0.4% Lauder Ometer A2 B2 Neutral detergent A3 B3 X A4 B4 Neutral detergent Dipping

Furtherance weight % Linear sodium alkyl benzene sulphonate (mean length of alkane chain C11.5) 8.0±0.02 Ethoxylated fatty alcohol C12-18 2.9±0.02 Sodium soap, chain length: C12-C16 (13%~26%), C18-C22 (74%~87%) 3.5±0.02 Sodium tripolyphospate 43.7±0.02 Sodium silicate (SiO ₂ :Na ₂ O = 3.3:1) 7.5±0.02 Magnesium silicate 1.9±0.02 Carboxymethylcellulose (CMC) 1.2±0.02 Ethylenediaminetetraacetic acid, EDTA, Sodium salt 0.2±0.02 Sodium sulfate 21.2±0.02 Water 9.9±0.02 Sum 100

Pictures before and after the washing treatment are shown in FIG. 9. Washing fastness of all the washed fabrics was 4-5, which was the second highest among 9 speeds of 1 to 5. And, the washed fabric did not deteriorate significantly compared to the untreated fabric. After washing, representative optical images of fabrics based on PAN fibers and nanocomposite fibers are shown in FIGS. 9(b) and (c), respectively. Since the dark blue color of textiles based on nanocomposite fibers is mainly due to nanoparticles that absorb green and red light, the fastness to washing of the fabric is nanocomposite fibers under the influence of chemical and physical forces by the nanoparticles by detergents and washing machines Indicates that it is stable.

Experimental Example 6. Experiment of light heating evaluation

Photothermal evaluation experiments were performed using the fabrics prepared in Example 3 and Comparative Example 3, and the results are shown in FIGS. 10, 11, and Table 4.

<Experiment Method>

Laboratory temperature: (25±1)℃

The sample was stabilized to have the same temperature in the dark.

After the solar simulator irradiated light at a distance of 20 cm from the sample, photo-heating was induced in the sample, and the temperature of the sample in the film state was measured for 60 minutes every 10 minutes, and the temperature was continuously checked for 60 minutes after the light irradiation was turned off. The temperature was measured using an IR thermometer.

(a-0) (a-1) (a-2) (a-3) (a-4) (b-0) (b-1) (b-2) (b-3) (b-4) 0 sec 25.5 ℃ 25.5 ℃ 25.5 ℃ 25.5 ℃ 25.5 ℃ 25.6 ℃ 25.6 ℃ 25.5 ℃ 25.5 ℃ 25.5 ℃ 10 seconds 29.7 ℃ 29.9 ℃ 29.2 ℃ 30.0 ℃ 31.1 ℃ 36.5 ℃ 35.4 ℃ 36.5 ℃ 34.7 ℃ 33.5 ℃ 20 seconds 30.0 ℃ 30.1 ℃ 29.8 ℃ 30.7 ℃ 31.7 ℃ 37.2 ℃ 37.7 ℃ 38.5 ℃ 36.7 ℃ 35.3 ℃ 30 seconds 30.9 ℃ 30.9 ℃ 30.2 ℃ 31.1 ℃ 31.6 ℃ 39.3 ℃ 38.3 ℃ 40.7 ℃ 37.5 ℃ 36.7 ℃ 40 seconds 31.0 ℃ 31.0 ℃ 30.3 ℃ 31.5 ℃ 32.2 ℃ 40.5 ℃ 39.8 ℃ 42.5 ℃ 37.4 ℃ 35.8 ℃ 50 seconds 31.1 ℃ 31.3 ℃ 30.6 ℃ 31.9 ℃ 32.7 ℃ 41.0 ℃ 40.5 ℃ 42.0 ℃ 38.3 ℃ 38.0 ℃ 60 seconds 31.7 ℃ 31.5 ℃ 30.6 ℃ 32.0 ℃ 32.7 ℃ 40.7 ℃ 40.0 ℃ 42.1 ℃ 38.6 ℃ 39.2 ℃ 70 seconds 31.9 ℃ 31.3 ℃ 30.8 ℃ 32.5 ℃ 32.9 ℃ 39.2 ℃ 42.1 ℃ 43.0 ℃ 38.7 ℃ 39.8 ℃ 80 seconds 31.9 ℃ 31.4 ℃ 31.0 ℃ 32.4 ℃ 32.9 ℃ 39.5 ℃ 41.6 ℃ 43.7 ℃ 38.7 ℃ 40.1 ℃ 90 seconds 31.8 ℃ 31.6 ℃ 31.0 ℃ 32.6 ℃ 33.1 ℃ 41.1 ℃ 43.0 ℃ 44.8 ℃ 38.9 ℃ 40.1 ℃ 100 seconds 32.3 ℃ 32.1 ℃ 31.0 ℃ 33.0 ℃ 33.3 ℃ 40.7 ℃ 43.2 ℃ 45.0 ℃ 39.9 ℃ 40.8 ℃ 110 seconds 32.6 ℃ 31.9 ℃ 31.1 ℃ 33.0 ℃ 33.4 ℃ 42.4 ℃ 42.6 ℃ 44.8 ℃ 40.2 ℃ 41.6 ℃ 120 seconds 33.4 ℃ 32.0 ℃ 31.4 ℃ 33.1 ℃ 33.5 ℃ 42.5 ℃ 45.0 ℃ 45.3 ℃ 41.5 ℃ 41.6 ℃ 130 seconds 33.6 ℃ 32.2 ℃ 31.1 ℃ 33.2 ℃ 33.4 ℃ 42.2 ℃ 43.6 ℃ 45.2 ℃ 42.2 ℃ 41.8 ℃ 140 seconds 33.4 ℃ 31.6 ℃ 31.2 ℃ 33.0 ℃ 33.3 ℃ 42.1 ℃ 44.5 ℃ 46.8 ℃ 42.1 ℃ 41.6 ℃ 150 seconds 33.6 ℃ 32.7 ℃ 31.6 ℃ 32.9 ℃ 33.5 ℃ 43.0 ℃ 44.9 ℃ 46.9 ℃ 42.2 ℃ 42.7 ℃ 160 seconds 33.8 ℃ 32.7 ℃ 31.4 ℃ 33.1 ℃ 33.5 ℃ 42.9 ℃ 44.9 ℃ 46.4 ℃ 43.4 ℃ 42.1 ℃ 170 seconds 33.6 ℃ 33.0 ℃ 31.5 ℃ 33.3 ℃ 33.7 ℃ 43.3 ℃ 45.1 ℃ 46.2 ℃ 43.7 ℃ 42.1 ℃ 180 seconds 33.8 ℃ 32.5 ℃ 31.6 ℃ 33.2 ℃ 33.7 ℃ 44.2 ℃ 44.9 ℃ 46.4 ℃ 43.8 ℃ 42.4 ℃ 190 seconds 34.0 ℃ 32.7 ℃ 31.7 ℃ 33.4 ℃ 33.8 ℃ 44.8 ℃ 46.2 ℃ 47.2 ℃ 43.8 ℃ 42.7 ℃ 200 seconds 34.0 ℃ 32.8 ℃ 31.6 ℃ 33.5 ℃ 34.1 ℃ 45.1 ℃ 45.3 ℃ 46.9 ℃ 43.5 ℃ 42.8 ℃ 210 seconds 33.9 ℃ 32.9 ℃ 31.5 ℃ 33.5 ℃ 33.5 ℃ 44.9 ℃ 45.7 ℃ 47.8 ℃ 43.4 ℃ 42.8 ℃ 220 seconds 34.0 ℃ 32.8 ℃ 31.4 ℃ 33.5 ℃ 33.9 ℃ 45.3 ℃ 44.7 ℃ 47.1 ℃ 43.7 ℃ 43.6 ℃ 230 seconds 33.9 ℃ 33.0 ℃ 31.7 ℃ 33.7 ℃ 34.1 ℃ 44.5 ℃ 45.9 ℃ 47.9 ℃ 43.4 ℃ 43.8 ℃ 240 seconds 33.9 ℃ 32.6 ℃ 31.8 ℃ 33.6 ℃ 33.9 ℃ 44.9 ℃ 46.8 ℃ 48.4 ℃ 43.6 ℃ 44.2 ℃ 250 seconds 33.4 ℃ 33.0 ℃ 31.8 ℃ 33.5 ℃ 33.7 ℃ 45.4 ℃ 46.5 ℃ 48.5 ℃ 43.7 ℃ 44.1 ℃ 260 seconds 34.4 ℃ 33.0 ℃ 31.8 ℃ 33.5 ℃ 33.8 ℃ 44.5 ℃ 46.3 ℃ 48.5 ℃ 43.7 ℃ 44.5 ℃ 270 seconds 34.5 ℃ 33.1 ℃ 31.7 ℃ 33.5 ℃ 34.2 ℃ 44.7 ℃ 46.2 ℃ 48.5 ℃ 44.0 ℃ 44.0 ℃ 280 seconds 34.8 ℃ 33.2 ℃ 31.7 ℃ 33.6 ℃ 34.0 ℃ 45.0 ℃ 46.5 ℃ 48.6 ℃ 44.2 ℃ 44.6 ℃ 290 seconds 34.8 ℃ 33.5 ℃ 31.9 ℃ 33.6 ℃ 34.1 ℃ 45.2 ℃ 47.0 ℃ 48.6 ℃ 44.7 ℃ 44.5 ℃ 300 seconds 34.8 ℃ 33.0 ℃ 31.6 ℃ 33.5 ℃ 34.1 ℃ 44.9 ℃ 47.2 ℃ 48.5 ℃ 44.7 ℃ 44.4 ℃ 320 seconds 34.9 ℃ 33.5 ℃ 31.8 ℃ 33.7 ℃ 34.0 ℃ 46.1 ℃ 47.5 ℃ 49.4 ℃ 44.7 ℃ 44.7 ℃ 340 seconds 34.9 ℃ 32.9 ℃ 32.1 ℃ 33.7 ℃ 34.0 ℃ 46.8 ℃ 47.7 ℃ 49.6 ℃ 45.0 ℃ 45.0 ℃ 360 seconds 34.7 ℃ 33.4 ℃ 32.2 ℃ 33.7 ℃ 34.2 ℃ 46.8 ℃ 47.9 ℃ 49.5 ℃ 45.1 ℃ 44.9 ℃ 380 seconds 34.8 ℃ 33.7 ℃ 32.1 ℃ 33.6 ℃ 34.2 ℃ 47.4 ℃ 47.2 ℃ 49.7 ℃ 45.0 ℃ 44.9 ℃ 400 seconds 35.0 ℃ 33.2 ℃ 32.2 ℃ 33.7 ℃ 34.5 ℃ 46.8 ℃ 47.7 ℃ 50.0 ℃ 45.1 ℃ 45.1 ℃ 420 seconds 35.1 ℃ 32.9 ℃ 32.1 ℃ 33.7 ℃ 34.2 ℃ 47.2 ℃ 47.6 ℃ 50.0 ℃ 45.2 ℃ 45.0 ℃ 440 seconds 35.2 ℃ 33.2 ℃ 32.1 ℃ 33.5 ℃ 34.2 ℃ 46.7 ℃ 47.6 ℃ 50.2 ℃ 45.4 ℃ 45.2 ℃ 460 seconds 35.0 ℃ 33.0 ℃ 32.1 ℃ 33.7 ℃ 34.4 ℃ 47.0 ℃ 48.0 ℃ 50.1 ℃ 45.4 ℃ 45.3 ℃ 480 seconds 34.9 ℃ 33.5 ℃ 32.0 ℃ 33.6 ℃ 34.2 ℃ 47.3 ℃ 48.5 ℃ 50.2 ℃ 45.9 ℃ 45.3 ℃ 500 seconds 34.9 ℃ 33.2 ℃ 32.2 ℃ 33.8 ℃ 34.4 ℃ 47.1 ℃ 48.6 ℃ 50.0 ℃ 45.9 ℃ 45.3 ℃ 520 seconds 34.9 ℃ 33.5 ℃ 32.5 ℃ 33.7 ℃ 34.2 ℃ 47.2 ℃ 48.0 ℃ 50.0 ℃ 45.8 ℃ 45.7 ℃ 540 seconds 35.0 ℃ 33.2 ℃ 32.4 ℃ 33.5 ℃ 34.3 ℃ 47.1 ℃ 48.7 ℃ 50.1 ℃ 45.4 ℃ 45.6 ℃ 560 seconds 35.0 ℃ 33.8 ℃ 32.2 ℃ 33.4 ℃ 34.2 ℃ 47.0 ℃ 48.2 ℃ 50.3 ℃ 45.3 ℃ 45.5 ℃ 580 seconds 34.9 ℃ 33.6 ℃ 32.2 ℃ 33.5 ℃ 34.2 ℃ 46.7 ℃ 48.2 ℃ 50.2 ℃ 46.4 ℃ 46.2 ℃ 600 seconds 35.0 ℃ 33.6 ℃ 32.4 ℃ 33.9 ℃ 34.4 ℃ 47.6 ℃ 48.7 ℃ 50.4 ℃ 46.4 ℃ 46.2 ℃ 610 seconds 34.4 ℃ 32.8 ℃ 31.3 ℃ 33.2 ℃ 33.5 ℃ 47.0 ℃ 45.2 ℃ 46.2 ℃ 42.6 ℃ 42.6 ℃ 620 seconds 34.0 ℃ 32.5 ℃ 31.0 ℃ 32.6 ℃ 33.2 ℃ 41.3 ℃ 42.2 ℃ 43.2 ℃ 40.2 ℃ 39.7 ℃ 630 seconds 33.6 ℃ 32.1 ℃ 30.6 ℃ 31.6 ℃ 32.4 ℃ 37.1 ℃ 39.9 ℃ 40.7 ℃ 38.4 ℃ 37.1 ℃ 640 seconds 33.3 ℃ 32.0 ℃ 30.3 ℃ 31.5 ℃ 32.4 ℃ 37.2 ℃ 38.7 ℃ 39.2 ℃ 37.2 ℃ 35.9 ℃ 650 seconds 33.1 ℃ 31.7 ℃ 30.2 ℃ 31.6 ℃ 32.3 ℃ 36.1 ℃ 37.2 ℃ 37.8 ℃ 36.4 ℃ 35.5 ℃ 660 seconds 33.0 ℃ 31.3 ℃ 30.0 ℃ 31.7 ℃ 32.0 ℃ 35.2 ℃ 36.3 ℃ 37.2 ℃ 35.7 ℃ 35.0 ℃ 670 seconds 32.6 ℃ 31.4 ℃ 29.9 ℃ 31.7 ℃ 32.0 ℃ 33.8 ℃ 35.5 ℃ 36.4 ℃ 35.1 ℃ 33.9 ℃ 680 seconds 32.6 ℃ 31.1 ℃ 29.8 ℃ 31.7 ℃ 32.1 ℃ 33.9 ℃ 34.4 ℃ 35.6 ℃ 34.6 ℃ 34.3 ℃ 690 seconds 32.6 ℃ 31.2 ℃ 29.8 ℃ 31.6 ℃ 32.0 ℃ 33.4 ℃ 34.4 ℃ 35.2 ℃ 34.3 ℃ 33.5 ℃ 700 seconds 32.3 ℃ 31.0 ℃ 29.7 ℃ 31.2 ℃ 32.0 ℃ 33.2 ℃ 33.9 ℃ 34.6 ℃ 33.9 ℃ 33.4 ℃ 710 seconds 32.2 ℃ 30.8 ℃ 29.9 ℃ 31.2 ℃ 31.9 ℃ 33.0 ℃ 33.7 ℃ 34.4 ℃ 33.6 ℃ 33.4 ℃ 720 seconds 32.2 ℃ 30.8 ℃ 29.8 ℃ 31.0 ℃ 31.8 ℃ 32.7 ℃ 33.4 ℃ 34.2 ℃ 33.3 ℃ 33.1 ℃ 730 seconds 31.8 ℃ 30.8 ℃ 29.7 ℃ 30.9 ℃ 31.7 ℃ 32.5 ℃ 33.3 ℃ 33.7 ℃ 33.0 ℃ 33.0 ℃ 740 seconds 32.0 ℃ 30.8 ℃ 29.7 ℃ 31.1 ℃ 31.7 ℃ 32.3 ℃ 33.0 ℃ 33.4 ℃ 33.0 ℃ 33.4 ℃ 750 seconds 32.0 ℃ 30.7 ℃ 29.7 ℃ 31.0 ℃ 31.5 ℃ 32.2 ℃ 32.9 ℃ 33.3 ℃ 32.7 ℃ 32.7 ℃ 760 seconds 31.7 ℃ 30.6 ℃ 29.7 ℃ 30.9 ℃ 31.6 ℃ 31.8 ℃ 32.6 ℃ 32.9 ℃ 32.6 ℃ 32.6 ℃ 770 seconds 31.7 ℃ 30.5 ℃ 29.8 ℃ 31.0 ℃ 31.5 ℃ 31.7 ℃ 32.5 ℃ 32.8 ℃ 32.5 ℃ 32.5 ℃ 780 seconds 31.8 ℃ 30.4 ℃ 29.8 ℃ 30.9 ℃ 31.5 ℃ 31.4 ℃ 32.4 ℃ 32.7 ℃ 32.3 ℃ 32.5 ℃ 790 seconds 31.7 ℃ 30.1 ℃ 29.8 ℃ 30.6 ℃ 31.6 ℃ 31.5 ℃ 31.9 ℃ 32.5 ℃ 32.4 ℃ 32.4 ℃ 800 seconds 31.7 ℃ 30.3 ℃ 29.9 ℃ 30.7 ℃ 31.3 ℃ 31.4 ℃ 31.8 ℃ 32.4 ℃ 32.2 ℃ 32.4 ℃ 810 seconds 31.6 ℃ 30.1 ℃ 29.7 ℃ 30.4 ℃ 31.5 ℃ 31.2 ℃ 31.6 ℃ 32.4 ℃ 32.1 ℃ 32.3 ℃ 820 seconds 31.7 ℃ 30.2 ℃ 29.8 ℃ 30.7 ℃ 31.4 ℃ 31.1 ℃ 31.6 ℃ 32.2 ℃ 32.0 ℃ 32.2 ℃ 830 seconds 31.6 ℃ 30.0 ℃ 29.8 ℃ 30.6 ℃ 31.2 ℃ 31.0 ℃ 31.5 ℃ 32.0 ℃ 32.0 ℃ 32.2 ℃ 840 seconds 31.6 ℃ 30.0 ℃ 29.6 ℃ 30.3 ℃ 31.3 ℃ 30.9 ℃ 31.5 ℃ 32.1 ℃ 32.0 ℃ 32.1 ℃ 850 seconds 31.5 ℃ 30.1 ℃ 29.7 ℃ 30.5 ℃ 31.4 ℃ 30.9 ℃ 31.5 ℃ 31.9 ℃ 31.7 ℃ 32.0 ℃ 860 seconds 31.5 ℃ 30.1 ℃ 29.7 ℃ 30.5 ℃ 31.0 ℃ 30.7 ℃ 31.4 ℃ 31.8 ℃ 31.7 ℃ 31.9 ℃ 870 seconds 31.6 ℃ 29.8 ℃ 29.7 ℃ 30.7 ℃ 31.2 ℃ 30.7 ℃ 31.4 ℃ 31.7 ℃ 31.7 ℃ 31.8 ℃ 880 seconds 31.4 ℃ 29.8 ℃ 29.5 ℃ 30.2 ℃ 31.3 ℃ 30.6 ℃ 31.3 ℃ 31.6 ℃ 31.6 ℃ 31.8 ℃ 890 seconds 31.2 ℃ 30.1 ℃ 29.6 ℃ 30.1 ℃ 31.2 ℃ 30.8 ℃ 31.2 ℃ 31.7 ℃ 31.7 ℃ 31.7 ℃ 900 seconds 31.2 ℃ 30.0 ℃ 29.7 ℃ 30.5 ℃ 31.2 ℃ 30.6 ℃ 31.2 ℃ 31.5 ℃ 31.6 ℃ 31.8 ℃ 920 seconds 31.2 ℃ 29.9 ℃ 29.5 ℃ 30.4 ℃ 31.2 ℃ 30.5 ℃ 31.3 ℃ 31.4 ℃ 31.7 ℃ 31.8 ℃ 940 seconds 31.2 ℃ 29.6 ℃ 29.3 ℃ 30.2 ℃ 31.3 ℃ 30.1 ℃ 30.9 ℃ 31.1 ℃ 31.7 ℃ 31.7 ℃ 960 seconds 31.2 ℃ 29.6 ℃ 29.3 ℃ 30.4 ℃ 31.3 ℃ 30.4 ℃ 30.7 ℃ 31.1 ℃ 31.6 ℃ 31.6 ℃ 980 seconds 31.2 ℃ 29.6 ℃ 29.3 ℃ 30.4 ℃ 31.2 ℃ 30.3 ℃ 30.8 ℃ 31.0 ℃ 31.6 ℃ 31.4 ℃ 1000 seconds 31.1 ℃ 29.6 ℃ 29.2 ℃ 30.4 ℃ 31.2 ℃ 30.3 ℃ 30.6 ℃ 31.0 ℃ 31.5 ℃ 31.4 ℃ 1020 seconds 31.3 ℃ 29.7 ℃ 29.3 ℃ 30.2 ℃ 31.2 ℃ 30.2 ℃ 30.6 ℃ 30.7 ℃ 31.4 ℃ 31.2 ℃ 1040 seconds 31.2 ℃ 29.7 ℃ 29.3 ℃ 30.2 ℃ 31.2 ℃ 30.2 ℃ 30.1 ℃ 30.7 ℃ 31.4 ℃ 31.2 ℃ 1060 seconds 31.1 ℃ 29.6 ℃ 29.3 ℃ 30.3 ℃ 31.0 ℃ 30.1 ℃ 30.4 ℃ 30.7 ℃ 31.3 ℃ 31.2 ℃ 1080 seconds 31.0 ℃ 29.7 ℃ 29.2 ℃ 30.3 ℃ 31.0 ℃ 30.1 ℃ 30.5 ℃ 30.6 ℃ 31.1 ℃ 31.2 ℃ 1100 seconds 31.0 ℃ 29.4 ℃ 29.3 ℃ 30.2 ℃ 30.9 ℃ 30.1 ℃ 30.4 ℃ 30.3 ℃ 31.1 ℃ 31.1 ℃ 1120 seconds 31.1 ℃ 29.6 ℃ 29.3 ℃ 30.1 ℃ 30.8 ℃ 29.7 ℃ 30.3 ℃ 30.5 ℃ 31.1 ℃ 31.1 ℃ 1140 seconds 31.1 ℃ 29.6 ℃ 29.2 ℃ 30.0 ℃ 30.9 ℃ 29.8 ℃ 30.1 ℃ 30.3 ℃ 31.2 ℃ 31.2 ℃ 1160 seconds 31.1 ℃ 29.5 ℃ 29.3 ℃ 30.0 ℃ 30.8 ℃ 30.0 ℃ 30.0 ℃ 30.4 ℃ 31.1 ℃ 31.1 ℃ 1180 seconds 31.2 ℃ 29.4 ℃ 29.3 ℃ 29.9 ℃ 30.8 ℃ 29.7 ℃ 30.0 ℃ 30.2 ℃ 31.1 ℃ 31.1 ℃ 1200 seconds 31.1 ℃ 29.3 ℃ 29.2 ℃ 29.7 ℃ 30.8 ℃ 29.8 ℃ 30.0 ℃ 30.3 ℃ 31.1 ℃ 31.1 ℃

As shown in FIGS. 10, 11 and Table 4, it can be seen that all of the examples show a sharp rise in temperature after irradiating light compared to the comparative examples, and the examples are lit and the examples are always kept at a high temperature of the fabric than the comparative examples. You can see that the effect persists. In addition, it can be seen that the highest temperature is 12.6°C higher than the sample (b-0) and the comparative group (a-1) before washing, and the photothermal composite material having antibacterial properties according to the present invention has excellent photothermal efficiency. Can be seen.

In addition, the sample difference (b-1), (b-2), (b-3), and (b-4) after washing have the highest temperature difference between the sample before washing (b-0) and 1.1°C to 2.8°C. Military samples (a-1), (a-2), (a-3), (a-4) are the antimicrobial according to the present invention, the difference between the sample (a-0) and the highest temperature before washing is 0.6°C to 2.6°C It can be seen that the light-heating composite material having a property has excellent light-heating efficiency even after washing.

Claims (16)

Synthetic yarn; And
Containing nanoparticles dispersed in the synthetic yarn,
The nanoparticles include a compound having a carboxyl group and a conductive polymer,
The content of the nanoparticles is 0.1 to 5.0 parts by weight based on 100 parts by weight of the synthetic yarn,
The compound having a carboxyl group is a synthetic yarn complex which is a fatty acid having 5 to 14 carbon atoms.
According to claim 1,
Synthetic yarn is a synthetic yarn composite which is a synthetic fiber having polarity.
According to claim 2,
Synthetic fiber having a polarity is a synthetic yarn composite of nylon, urethane, acrylic, or ester fibers.
According to claim 1,
The size of the nanoparticles is a synthetic yarn composite with an average diameter of 20 to 500 nm.
delete According to claim 1,
A synthetic yarn composite having a molar ratio between the compound having a carboxyl group and the conductive polymer is 20:1 to 1:20.
According to claim 1,
Synthetic yarn composite having a maximum absorption wavelength of nanoparticles of 400 nm to 1000 nm.
delete According to claim 1,
A synthetic yarn complex wherein the fatty acid having 5 to 14 carbon atoms is octanoic acid, decanoic acid, or dodecanoic acid.
According to claim 1,
The conductive polymer is a synthetic yarn composite having an electron donor and electron acceptor structure within the structure.
According to claim 1,
The conductive polymer is a synthetic yarn composite having a sulfur atom and/or a nitrogen atom in its structure.
The method of claim 11,
The conductive polymer is a synthetic yarn complex having thiophene and benzothiadiazole sites in the structure.
According to claim 1,
The conductive polymer is a synthetic yarn composite having an alkyl group having 5 to 15 carbon atoms in the structure.
Preparing a nanoparticle by mixing a compound having a carboxyl group and a conductive polymer;
Preparing a mixed solution by mixing the nanoparticles and fibers in a solvent; And
Method for producing a synthetic yarn composite according to claim 1, comprising the step of preparing a yarn by wet spinning the mixed solution.
A fiber comprising the synthetic yarn composite according to claim 1.
Clothing comprising fibers according to claim 15.

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