CN113430663A - Graphene quantum dot reinforced fiber and preparation method and application thereof - Google Patents
Graphene quantum dot reinforced fiber and preparation method and application thereof Download PDFInfo
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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
- D01F1/103—Agents inhibiting growth of microorganisms
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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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
- D01F6/88—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
- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2477/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2477/06—Polyamides derived from polyamines and polycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/042—Graphene or derivatives, e.g. graphene oxides
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Abstract
The invention provides a graphene quantum dot reinforced fiber and a preparation method and application thereof, wherein the preparation raw materials of the graphene quantum dot reinforced fiber comprise a specific part of graphene quantum dot master batch, a specific part of polymer master batch and a specific part of filler; the graphene quantum dot master batch comprises a specific part of graphene quantum dots, a dispersing agent and a polymer matrix; the graphene quantum dots are firstly prepared into the graphene quantum dot master batch with the polymer matrix, and then the graphene quantum dot master batch is compounded with the polymer master batch, so that the dispersibility of the graphene quantum dots in the matrix is favorably improved, and the antiviral, antibacterial and anti-mite effects of the finally obtained graphene quantum dot reinforced fiber are favorably improved.
Description
Technical Field
The invention belongs to the technical field of composite materials, and particularly relates to a graphene quantum dot reinforced fiber and a preparation method and application thereof.
Background
The metal material is antibacterial, belongs to heavy metals of silver, copper, zinc and oxides thereof, is easy to oxidize and generates heavy metal pollution to human bodies; the organic material can not be directly melted in the organism for antibiosis, and only can be subjected to post-treatment; the biomass material has limited antibacterial amount and insignificant antibacterial effect.
With the deepening of the research of graphene, the graphene has been widely researched and applied in the textile field, can endow fibers and textiles with the functions of far infrared emission, high-efficiency antibiosis and mite removal, excellent antistatic property, high resilience, mildew prevention, peculiar smell removal and the like, and has the characteristics of long-acting heat preservation and cold resistance, softness, skin friendliness, lightness, comfort and the like. The graphene quantum dot modified material belongs to an inorganic carbon material, changes the antibacterial defect and effectively resists influenza virus H1N1/H3N2In recent years, nanotechnology is widely applied to fibers and textiles, and is rapidly developed in the directions of compounding of various nanostructures, addition of various fibers and compounding of various functions, and the nanotechnology becomes a new research platform. The functional fiber is an important element constituting the functional textile, and the special function of the functional fiber is embodied by the form of the textile. Over the past decade, specialized research technicians have developed, studied, and explored various differentiated synthetic fibers in an attempt to remedy some of the deficiencies of synthetic fibers while maintaining their characteristics and advantages. Therefore, the functionality of the fiber is significantly improved, and the fiber material is highly regarded as an important component of material science.
CN103338538A discloses a graphene radiation heating film and a preparation method and application thereof, wherein graphene slurry is coated on the surface of a fiber fabric to form the radiation heating film, wherein the graphene slurry is formed by uniformly mixing and stirring 3-5 parts of graphene powder, 13 parts of far infrared emitting agent and 4-6 parts of bonding diluent and then coating the mixture on the surface of the fiber fabric to form a film. In use, the graphene radiation heating film radiates and heats under the action of external temperature.
CN112457558A discloses a graphene quantum dot modified polymer master batch for functional fibers and a preparation method thereof, wherein the master batch is prepared by taking a polymer matrix, graphene quantum dots, a second functional filler, a surface treatment agent, a filler coating agent and a processing aid as raw materials and adopting a high-shear melting dispersion method, wherein the graphene quantum dots are graphene quantum dot powder prepared by adopting a microwave hydrothermal synthesis method; the invention aims to provide a functional master batch which has the functions of far infrared emission, high-efficiency antibiosis and mite removal, excellent antistatic property, high resilience, mould prevention and peculiar smell removal, and the like.
CN112457558A discloses a graphene quantum dot modified polymer master batch for functional fibers and a preparation method thereof, belonging to the field of graphene functional fibers and textiles, and the master batch is prepared by taking a polymer matrix, graphene quantum dots, a second functional filler, a surface treatment agent, a filler coating agent and a processing aid as raw materials and adopting a high-shear melting dispersion method, wherein the graphene quantum dots are graphene quantum dot powder prepared by adopting a microwave hydrothermal synthesis method; the invention aims to provide a functional master batch which has the functions of far infrared emission, high-efficiency antibiosis and mite removal, excellent antistatic property, high resilience, mould prevention and peculiar smell removal, and the like.
However, the graphene quantum dots themselves have a large specific surface area, and the graphene quantum dots in the graphene quantum dot modified material obtained by the method provided in the above patent are difficult to be uniformly dispersed in the matrix, and the antibacterial effect of the obtained product is further reduced.
Therefore, the development of a graphene quantum dot reinforced fiber with excellent antibacterial effect is a technical problem which needs to be solved urgently by those skilled in the art.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a graphene quantum dot reinforced fiber and a preparation method and application thereof; the preparation raw materials of the graphene quantum dot reinforced fiber comprise a specific part of graphene quantum dot master batch, a high-molecular master batch and a filler; the graphene quantum dot master batch comprises a combination of graphene quantum dots, a dispersing agent and a polymer matrix in a specific part; graphene quantum dots and a polymer matrix are prepared into graphene quantum dot master batches and then are mixed with the polymer master batches, so that the finally obtained graphene quantum dots in the graphene quantum dot reinforced fiber are uniformly dispersed and have excellent antibacterial, antiviral and anti-mite effects.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the invention provides a graphene quantum dot reinforced fiber, which comprises the following raw materials in parts by weight:
10-20 parts by weight of graphene quantum dot master batch;
50-75 parts of polymer master batch;
1-3 parts by weight of a filler;
the graphene quantum dot master batch comprises the following raw materials in parts by weight:
4-6 parts of graphene quantum dots by weight;
2-3 parts by weight of a dispersant;
90-100 parts by weight of a polymer matrix.
The graphene quantum dot master batch can be 11 parts by weight, 12 parts by weight, 13 parts by weight, 14 parts by weight, 15 parts by weight, 16 parts by weight, 17 parts by weight, 18 parts by weight or 19 parts by weight, and specific values therebetween are not exhaustive, and the specific values included in the ranges are not limited by the disclosure and the conciseness.
The polymer masterbatch may be 52 parts by weight, 54 parts by weight, 56 parts by weight, 58 parts by weight, 60 parts by weight, 62 parts by weight, 64 parts by weight, 66 parts by weight, 68 parts by weight, 72 parts by weight or 74 parts by weight, and specific values therebetween are not exhaustive, and the invention is not limited to the specific values included in the ranges for brevity and conciseness.
The filler may be 1.2 parts by weight, 1.4 parts by weight, 1.6 parts by weight, 1.8 parts by weight, 2 parts by weight, 2.2 parts by weight, 2.4 parts by weight, 2.6 parts by weight, or 2.8 parts by weight, and the specific values therebetween, are not exhaustive and are not intended to include the specific values in the ranges for brevity.
The graphene quantum dots may be 4.2 parts by weight, 4.6 parts by weight, 4.8 parts by weight, 5 parts by weight, 5.2 parts by weight, 5.4 parts by weight, 5.6 parts by weight, or 5.8 parts by weight, and specific values therebetween are not exhaustive, and the invention is not limited to the specific values included in the ranges for brevity.
The dispersant may be 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, or 2.9 parts by weight, and specific values therebetween, not to be construed as limiting the disclosure and for the sake of brevity, the invention is not intended to be exhaustive of the specific values included in the ranges set forth.
The polymer matrix may be 91, 92, 93, 94, 95, 96, 97, 98 or 99 parts by weight, and specific values therebetween are not exhaustive for the purpose of brevity and clarity.
The preparation raw materials of the graphene quantum dot reinforced fiber provided by the invention comprise a specific part of graphene quantum dot master batch, a high-molecular master batch and a filler; the graphene quantum dot master batch comprises a combination of graphene quantum dots, a dispersing agent and a polymer matrix in a specific part; the graphene quantum dots and the polymer matrix are firstly prepared into the graphene quantum dot master batch, and then the graphene quantum dot master batch is further compounded with the polymer master batch, so that the dispersibility of the graphene quantum dots in the matrix is favorably improved, and the antibacterial performance and the mechanical performance of the graphene quantum dots are favorably improved.
Preferably, the graphene quantum dots have a radial dimension of 10-20 nm, such as 11nm, 12nm, 13nm, 14nm, 15nm, 16nm, 17nm, 18nm or 19nm, and the specific values therebetween are limited by space and for brevity, the present invention is not exhaustive of the specific values included in the range.
The "radial dimension" in the present invention refers to the longest distance in a plane, and is an average value considering that the sizes of respective sheets or particles in the graphene quantum dots may not be completely the same.
Preferably, the dispersant comprises caprolactam.
Preferably, the filler comprises any one of paraffin, white oil, polyolefin elastomer, polyethylene wax, ethylene propylene diene monomer, styrene-based thermoplastic elastomer, ethylene-vinyl acetate copolymer, styrene-butadiene rubber, ethylene-methyl acrylate copolymer, ethylene-ethyl acrylate copolymer, ethylene-butyl acrylate copolymer or polyester elastomer or a combination of at least two thereof.
Preferably, the polymer master batch and the polymer matrix comprise at least one of polyethylene terephthalate, polybutylene terephthalate, polyamide, polyacrylonitrile, polyvinyl formal, polyvinyl chloride, polyurethane, polyethylene or polypropylene.
Preferably, the mass percentage of the graphene quantum dots in the graphene quantum dot master batch is 4-6%, for example, 4.2%, 4.4%, 4.6%, 4.8%, 5%, 5.2%, 5.4%, 5.6%, or 5.8%, and specific values between the above values are limited to space and for simplicity, and the invention does not exhaustive list the specific values included in the range.
Preferably, the content of the graphene quantum dots in the graphene quantum dot reinforced fiber is 0.2-0.3% by mass, such as 0.21%, 0.22%, 0.23%, 0.24%, 0.25%, 0.26%, 0.27%, 0.28% or 0.29%, and the specific values therebetween are limited by space and for brevity, the invention is not exhaustive of the specific values included in the range.
As a preferred technical scheme, the graphene quantum dot reinforced fiber provided by the invention is characterized in that the mass percentage of graphene quantum dots in the finally obtained graphene quantum dot reinforced fiber is controlled to be 0.2-0.3%; the mass percentage of the graphene quantum dots in the graphene quantum dot master batch is further controlled to be 4-6%, so that the prepared graphene quantum dot reinforced fiber has the most excellent mechanical property and antibacterial property; if the addition amount of the graphene quantum dots is too large, the graphene quantum dots are difficult to disperse uniformly; if the amount is too small, the dispersion uniformity and the antibacterial property of the finally obtained material are affected.
In a second aspect, the present invention provides a method for preparing a graphene quantum dot reinforced fiber according to the first aspect, the method comprising the following steps:
(1) mixing and extruding the graphene quantum dots, the polymer matrix and the dispersing agent to obtain graphene quantum dot master batches;
(2) and (2) mixing, extruding and spinning the graphene quantum dot master batch obtained in the step (1), the polymer master batch and the filler to obtain the graphene quantum dot reinforced fiber.
Preferably, the mixing time in step (1) is 1 to 1.5h, such as 1.05h, 1.1h, 1.15h, 1.2h, 1.25h, 1.3h, 1.35h, 1.4h or 1.45h, and the specific values therebetween, which are not exhaustive and included in the range for brevity.
Preferably, the extruding of step (1) is performed by a twin screw extruder.
Preferably, the mixing time in step (2) is 1.5-2 h, such as 1.55h, 1.6h, 1.65h, 1.7h, 1.75h, 1.8h, 1.85h, 1.9h or 1.95h, and the specific values therebetween, which are not exhaustive and included in the range for brevity.
Preferably, the spinning temperature in the step (2) is 250-300 ℃, for example 255 ℃, 260 ℃, 265 ℃, 270 ℃, 275 ℃, 280 ℃, 285 ℃, 290 ℃ or 295 ℃, and specific values therebetween are limited to space and for the sake of brevity, and the invention is not exhaustive of the specific values included in the range.
In a third aspect, the present invention provides a graphene quantum dot reinforced fiber according to the first aspect, and an application of the graphene quantum dot reinforced fiber in an antibacterial product.
Compared with the prior art, the invention has the following beneficial effects:
(1) the graphene quantum dot reinforced fiber provided by the invention is prepared by adding specific parts of graphene quantum dot master batches, polymer master batches and fillers in specific parts into preparation raw materials; the graphene quantum dot master batch comprises a combination of graphene quantum dots, a dispersing agent and a polymer matrix in a specific part; graphene quantum dots and a polymer matrix are prepared into graphene quantum dot master batches and then are mixed with the polymer master batches, so that the finally obtained graphene quantum dots in the graphene quantum dot reinforced fiber are uniformly dispersed and have excellent antiviral, antifungal and antifungal effects.
(2) Specifically, the graphene quantum dot reinforced fiber provided by the invention has the anti-influenza A virus H1N1 activity rate of 99.29-99.69%, the anti-influenza A virus H3N2 activity rate of 98.64-99.78%, the anti-escherichia coli rate of 98-99%, the anti-staphylococcus aureus rate of 98-99%, the anti-candida albicans rate of 90-94%, the aversion rate to mites of 60.32-64.23%, the fiber strength of 3.0-3.4 cN/dtex, and excellent comprehensive performance.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments. It should be understood by those skilled in the art that the examples are only for the understanding of the present invention and should not be construed as the specific limitations of the present invention.
Example 1
The graphene quantum dot reinforced fiber comprises the following components in parts by weight:
4.5 parts of graphene quantum dot master batch by weight;
80 parts of polyamide 6 master batch;
2 parts of paraffin wax;
the graphene quantum dot master batch comprises the following raw materials in parts by weight:
5 parts of graphene quantum dots;
caprolactam 2.5 parts by weight;
polyamide 695 parts by weight.
The preparation method of the graphene quantum dot reinforced fiber provided by the embodiment comprises the following steps:
(1) mixing graphene quantum dots (the radial dimension of which is 15nm), polyamide 6 (PA 6, Midamia California chemical fiber Co., Ltd.) and caprolactam for 1h, and extruding and granulating by a double-screw extruder to obtain graphene quantum dot master batches;
(2) and (2) mixing the graphene quantum dot master batch obtained in the step (1), polyamide 6 master batch (PA 6, Midamia, Calif.) and paraffin for 1.5h, and spinning at 285 ℃ by using a double-screw extruder to obtain the graphene quantum dot reinforced fiber.
Example 2
The graphene quantum dot reinforced fiber comprises the following components in parts by weight:
4 parts of graphene quantum dot master batch by weight;
70 parts of polyamide 66 master batch;
1 part by weight of paraffin;
the graphene quantum dot master batch comprises the following raw materials in parts by weight:
4 parts of graphene quantum dots;
caprolactam 2 parts by weight;
and 690 parts by weight of polyamide.
The preparation method of the graphene quantum dot reinforced fiber provided by the embodiment comprises the following steps:
(1) mixing graphene quantum dots (the radial dimension of which is 15nm), polyamide 6 (PA 6, Midamia California chemical fiber Co., Ltd., Guangdong) and caprolactam for 1.5h, and performing extrusion granulation by using a double-screw extruder to obtain graphene quantum dot master batches;
(2) and (2) mixing the graphene quantum dot master batch obtained in the step (1), polyamide 6 master batch (PA 6, Midamia, Calif.) and paraffin for 1.5h, and spinning at 290 ℃ by using a double-screw extruder to obtain the graphene quantum dot reinforced fiber.
Example 3
The graphene quantum dot reinforced fiber comprises the following components in parts by weight:
7 parts of graphene quantum dot master batch;
90 parts by weight of polyethylene glycol terephthalate master batch;
3 parts of paraffin wax;
the graphene quantum dot master batch comprises the following raw materials in parts by weight:
6 parts of graphene quantum dots;
caprolactam 3 parts by weight;
100 parts by weight of polyethylene terephthalate.
The preparation method of the graphene quantum dot reinforced fiber provided by the embodiment comprises the following steps:
(1) mixing the graphene quantum dots (the radial size is 15nm), polyethylene terephthalate and caprolactam for 1.5h, and performing extrusion granulation by a double-screw extruder to obtain graphene quantum dot master batches;
(2) and (2) mixing the graphene quantum dot master batch obtained in the step (1), the polyethylene terephthalate master batch and paraffin wax for 1.5h, and spinning at 280 ℃ through a double-screw extruder to obtain the graphene quantum dot reinforced fiber.
Example 4
The graphene quantum dot reinforced fiber is different from the graphene quantum dot reinforced fiber in example 1 in that the addition amount of the graphene quantum dot master batch is 3 parts by weight, the addition amount of the polyamide 6 master batch is 81.5 parts by weight, and other components, the use amounts and the preparation method are the same as those of example 1.
Example 5
The graphene quantum dot reinforced fiber is different from the graphene quantum dot reinforced fiber in example 1 in that the addition amount of the graphene quantum dot master batch is 10 parts by weight, the addition amount of the polyamide 6 master batch is 74.5 parts by weight, and other components, the use amounts and the preparation method are the same as those of example 1.
Comparative example 1
The graphene quantum dot reinforced fiber comprises the following components in parts by weight:
the preparation method of the graphene quantum dot reinforced fiber provided by the comparative example comprises the following steps: and mixing the graphene quantum dots, the polyamide 6 master batch, the paraffin and caprolactam, and extruding the mixture by a double-screw extruder to obtain the graphene quantum dot reinforced fiber.
Comparative example 2
The graphene quantum dot reinforced fiber is different from the graphene quantum dot reinforced fiber in example 1 in that the addition amount of the graphene quantum dot master batch is 20 parts by weight, the addition amount of the polyamide 66 master batch is 64.5 parts by weight, and other components, the use amounts and the preparation method are the same as those of example 1.
Performance testing
(1) The bacteriostasis rate is as follows: testing according to GB/T20944.3-2008 evaluation of antibacterial performance of textiles;
(2) antiviral activity rate: the test was performed according to the test method provided in ISO 18184: 2019;
(3) mite aversion rate: testing is carried out according to GB/T24253-2009 evaluation of textile slowing performance 9.1 evasion method;
(4) fiber strength: the tensile strength of the fibers was measured using a fiber strength tester.
The graphene quantum dot reinforced fibers provided in examples 1 to 5 and comparative examples 1 to 2 were tested according to the above test method, and the test results are shown in table 1:
TABLE 1
As can be seen from the data in table 1:
the graphene quantum dot reinforced fiber provided by the invention has excellent antibacterial, anti-mite and antiviral properties and higher fiber strength;
specifically, the graphene quantum dot reinforced fibers obtained in examples 1 to 5 have an anti-influenza a virus H1N1 activity rate of 99.29 to 99.69%, an anti-influenza a virus H3N2 activity rate of 98.64 to 99.78%, an anti-escherichia coli activity rate of 98 to 99%, an anti-staphylococcus aureus activity rate of 98 to 99%, an anti-candida albicans activity rate of 90 to 94%, an anti-mite avoidance rate of 60.32 to 64.23%, and a fiber strength of 3.0 to 3.4 cN/dtex;
comparing example 1 with comparative example 1, it can be found that the comprehensive performance of the fiber prepared by directly adding the graphene quantum dots into the Dongan 6 masterbatch by adopting a one-step method is reduced;
comparing example 1 and comparative example 2, it can be seen that too much amount of graphene quantum dots will result in a decrease in the fiber strength of the final fiber.
Further comparing examples 1 and 4 to 5, it can be found that too much or too little addition of graphene in the graphene quantum dot master batch affects the performance of the finally obtained fiber.
The applicant states that the present invention is illustrated by the above embodiments, but the present invention is not limited to the above embodiments, that is, the present invention is not limited to the above embodiments. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.
Claims (10)
1. The graphene quantum dot reinforced fiber is characterized by comprising the following raw materials in parts by weight:
3-10 parts of graphene quantum dot master batch by weight;
70-90 parts by weight of polymer master batch;
1-3 parts by weight of a filler;
the graphene quantum dot master batch comprises the following raw materials in parts by weight:
3-7 parts of graphene quantum dots by weight;
2-3 parts by weight of a dispersant;
90-100 parts by weight of a polymer matrix.
2. The graphene quantum dot reinforced fiber of claim 1, wherein the graphene quantum dot has a radial dimension of 10-20 nm.
3. The graphene quantum dot reinforcing fiber of claim 1 or 2, wherein the dispersant comprises caprolactam.
4. The graphene quantum dot reinforced fiber of any one of claims 1 to 3, wherein the filler comprises any one or a combination of at least two of paraffin, white oil, polyolefin elastomer, polyethylene wax, ethylene-propylene-diene monomer, styrene-based thermoplastic elastomer, ethylene-vinyl acetate copolymer, styrene-butadiene rubber, ethylene-methyl acrylate copolymer, ethylene-ethyl acrylate copolymer, ethylene-butyl acrylate copolymer, or polyester elastomer.
5. The graphene quantum dot reinforced fiber according to any one of claims 1 to 4, wherein the polymer master batch and the polymer matrix comprise at least one of polyethylene terephthalate, polybutylene terephthalate, polyamide, polyacrylonitrile, polyvinyl formal, polyvinyl chloride, polyurethane, polyethylene, or polypropylene.
6. The graphene quantum dot reinforced fiber according to any one of claims 1 to 5, wherein the graphene quantum dot master batch contains 4 to 6% by mass of graphene quantum dots;
preferably, the mass percentage content of the graphene quantum dots in the graphene quantum dot reinforced fiber is 0.2-0.3%.
7. A preparation method of the graphene quantum dot reinforced fiber according to any one of claims 1 to 6, wherein the preparation method comprises the following steps:
(1) mixing and extruding the graphene quantum dots, the polymer matrix and the dispersing agent to obtain graphene quantum dot master batches;
(2) and (2) mixing and spinning the graphene quantum dot master batch obtained in the step (1), the polymer master batch and the filler to obtain the graphene quantum dot reinforced fiber.
8. The preparation method according to claim 7, wherein the mixing time in the step (1) is 1-1.5 h;
preferably, the extruding of step (1) is performed by a twin screw extruder.
9. The preparation method according to claim 7 or 8, wherein the mixing time in the step (2) is 1.5-2 h;
preferably, the spinning temperature of the step (2) is 250-300 ℃.
10. The application of the graphene quantum dot reinforced fiber as claimed in any one of claims 1 to 6 in an antibacterial product.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110830591.5A CN113430663A (en) | 2021-07-22 | 2021-07-22 | Graphene quantum dot reinforced fiber and preparation method and application thereof |
| PCT/CN2021/139498 WO2023000606A1 (en) | 2021-07-22 | 2021-12-20 | Graphene composite antibacterial masterbatch, graphene quantum dot reinforced fiber and graphene quantum dot composite film, preparation method therefor, and application thereof |
| CN202180004656.9A CN114502655B (en) | 2021-07-22 | 2021-12-20 | Graphene composite antibacterial master batch, graphene quantum dot reinforced fiber and graphene quantum dot composite film, and preparation methods and applications thereof |
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| CN202110830591.5A CN113430663A (en) | 2021-07-22 | 2021-07-22 | Graphene quantum dot reinforced fiber and preparation method and application thereof |
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| CN113430663A true CN113430663A (en) | 2021-09-24 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113882077A (en) * | 2021-09-26 | 2022-01-04 | 常熟市欣鑫经纬编有限公司 | Heat storage fiber fabric and preparation method thereof |
| CN115142194A (en) * | 2022-07-26 | 2022-10-04 | 青岛大学 | Graphene quantum dot antibacterial and antiviral melt-blown cloth and mask and preparation method thereof |
| CN115341295A (en) * | 2022-07-26 | 2022-11-15 | 青岛大学 | Graphene quantum dot/polymer antibacterial and antiviral composite fiber and preparation method thereof |
| WO2023000606A1 (en) * | 2021-07-22 | 2023-01-26 | 秦继恩 | Graphene composite antibacterial masterbatch, graphene quantum dot reinforced fiber and graphene quantum dot composite film, preparation method therefor, and application thereof |
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2021
- 2021-07-22 CN CN202110830591.5A patent/CN113430663A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023000606A1 (en) * | 2021-07-22 | 2023-01-26 | 秦继恩 | Graphene composite antibacterial masterbatch, graphene quantum dot reinforced fiber and graphene quantum dot composite film, preparation method therefor, and application thereof |
| CN113882077A (en) * | 2021-09-26 | 2022-01-04 | 常熟市欣鑫经纬编有限公司 | Heat storage fiber fabric and preparation method thereof |
| CN115142194A (en) * | 2022-07-26 | 2022-10-04 | 青岛大学 | Graphene quantum dot antibacterial and antiviral melt-blown cloth and mask and preparation method thereof |
| CN115341295A (en) * | 2022-07-26 | 2022-11-15 | 青岛大学 | Graphene quantum dot/polymer antibacterial and antiviral composite fiber and preparation method thereof |
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