CN111996793A - Preparation method and application of graphene antibacterial cloth - Google Patents
Preparation method and application of graphene antibacterial cloth Download PDFInfo
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- CN111996793A CN111996793A CN202010941284.XA CN202010941284A CN111996793A CN 111996793 A CN111996793 A CN 111996793A CN 202010941284 A CN202010941284 A CN 202010941284A CN 111996793 A CN111996793 A CN 111996793A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 112
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 107
- 239000004744 fabric Substances 0.000 title claims abstract description 100
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000002791 soaking Methods 0.000 claims abstract description 18
- 238000001035 drying Methods 0.000 claims abstract description 13
- 238000007598 dipping method Methods 0.000 claims abstract description 3
- 238000005303 weighing Methods 0.000 claims abstract description 3
- 238000006243 chemical reaction Methods 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 14
- 239000007789 gas Substances 0.000 claims description 13
- 239000012495 reaction gas Substances 0.000 claims description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 10
- 238000005470 impregnation Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 5
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims description 4
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims description 4
- 238000011031 large-scale manufacturing process Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 12
- 239000004745 nonwoven fabric Substances 0.000 description 10
- 238000001514 detection method Methods 0.000 description 8
- 239000004753 textile Substances 0.000 description 7
- 241000222122 Candida albicans Species 0.000 description 6
- 241000588724 Escherichia coli Species 0.000 description 6
- 241000191967 Staphylococcus aureus Species 0.000 description 6
- 229940095731 candida albicans Drugs 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000523 sample Substances 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000003385 bacteriostatic effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 239000003937 drug carrier Substances 0.000 description 1
- 238000000635 electron micrograph Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000000407 epitaxy Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000003949 liquefied natural gas Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000011895 specific detection Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/73—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof
- D06M11/74—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with carbon or graphite; with carbides; with graphitic acids or their salts
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
- D06B15/005—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours by squeezing, otherwise than by rollers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
- D06B15/02—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours by squeezing rollers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/20—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation
- D06B23/205—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation for adding or mixing constituents of the treating material
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Carbon And Carbon Compounds (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a preparation method and application of graphene antibacterial cloth. The preparation method of the graphene antibacterial cloth comprises the following steps: obtaining 2-5 layers of graphene materials; weighing the following components in parts by mass: 0.1-5 parts of graphene material and 95-99.9 parts of water; the sum of the mass parts of the components is 100 parts; uniformly dispersing the graphene material in the water to prepare a dipping solution; soaking the cloth to be planted in the soaking solution to obtain soaked planting cloth; and dehydrating and drying the soaked planting cloth to obtain the graphene antibacterial cloth. According to the invention, the low-cost and high-quality graphene is planted on the cloth to obtain the antibacterial cloth, the preparation process is simple, and the antibacterial cloth can be used for large-scale production.
Description
Technical Field
The invention belongs to the technical field of graphene; in particular to a preparation method and application of graphene antibacterial cloth.
Background
Graphene is a two-dimensional crystal composed of carbon atoms arranged in the same manner as single-layer atoms of graphite, and is a planar crystal arranged in a honeycomb hexagonal shape. The ideal graphene structure is a planar hexagonal lattice, which can be regarded as a layer of exfoliated graphite molecules, each carbon atom being sp2Hybridize and contribute electrons in one p orbital to form large pi bonds.
Since professor anderleu haim and professor corestin norworth schloff of manchester university in britain adopted a micro-mechanical separation method to obtain graphene, new graphene preparation methods have emerged, such as redox method, epitaxy method, chemical vapor deposition method, epitaxial growth method, and the like. However, low-cost, large-area, high-quality graphene macro-fabrication techniques remain the major difficulties and challenges facing this field today.
Graphene draws wide attention of scientists all over the world due to its unique electrical properties, mechanical properties, thermal properties, optical properties, high specific surface area and wide application prospect. The specific application fields of graphene are as follows: in the field of energy storage, graphene can be used for manufacturing super capacitors and super lithium batteries; in the field of photoelectric devices, graphene can be used for manufacturing solar cells, transistors, computer chips, touch screens and the like; in the field of materials, graphene can be used as a new additive and can be used for manufacturing a novel coating and an antistatic material; in the field of biomedicine, graphene has good barrier property and biocompatibility and can be used for drug carriers, biological diagnosis, biological monitoring and the like; in the field of heat dissipation, the graphene heat dissipation film can be widely applied to ultrathin high-power-consumption electronic products.
Disclosure of Invention
Based on the background technology, the invention aims to provide a preparation method and application of graphene antibacterial cloth, which can be used for planting a graphene material with a physical disinfection and antibacterial function on a planting cloth to obtain the graphene antibacterial cloth, and the graphene antibacterial cloth can be applied to the fields of medical treatment and clothing.
The invention is realized by the following technical scheme:
a. obtaining 2-5 layers of graphene materials;
b. weighing the following components in parts by mass: 0.1-5 parts of graphene material and 95-99.9 parts of water; the sum of the mass parts of the components is 100 parts;
c. uniformly dispersing the graphene material in the water to prepare a dipping solution;
d. soaking the cloth to be planted in the soaking solution to obtain soaked planting cloth;
e. and dehydrating and drying the soaked planting cloth to obtain the graphene antibacterial cloth.
The method for obtaining the 2-5-layer graphene material comprises the following steps: arc heating the reaction space to 3500-3800K under the protective gas environment, wherein the pressure of the reaction space is kept between 1.2 and 1.5MPa by using the protective gas; introducing reaction gas into the reaction space, wherein the reaction gas comprises acetylene and/or methane; obtaining the graphene material with 2-5 layers.
Preferably, the cloth to be planted comprises at least one of melt-blown cloth, non-woven cloth or woven cloth.
More preferably, the specification of the cloth to be planted is 10-150g/m2(ii) a The wind resistance of the cloth to be planted is 2-500 Pa.
The process of dehydrating and drying the soaked planting cloth comprises the following steps: dehydrating the soaked planting cloth by using double press rollers to obtain dehydrated planting cloth; and drying the dehydrated planting cloth at the temperature of 60-250 ℃ to obtain the graphene antibacterial cloth.
The process of uniformly dispersing the graphene material in the water includes: and uniformly dispersing the graphene material in the water by ultrasonic waves to obtain the impregnation solution.
The graphene planting density of the graphene antibacterial cloth is 0.1-30g/m2。
On the other hand, an embodiment of the present invention provides a graphene antibacterial cloth, which is the graphene antibacterial cloth obtained by the graphene preparation method according to any one of the embodiments.
Furthermore, the graphene antibacterial cloth can be applied to the medical field and used for manufacturing medical articles such as masks, adhesive bandages and protective clothing.
Furthermore, the graphene antibacterial cloth can be applied to the field of clothes and used for manufacturing underwear, socks, bedding and the like.
Compared with the prior art, the preparation method has the advantages that the graphene with low cost and high quality is selected as the raw material, and the preparation process is simple; the graphene antibacterial cloth has strong antibacterial performance, and the antibacterial rate of the graphene antibacterial cloth is up to 99%.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flow chart of a preparation method of graphene antibacterial cloth provided by the invention.
Fig. 2 is a photograph of the complete graphene crystal phase prepared by the present invention.
Fig. 3 is a microscopic photograph of the edge portion of the graphene material prepared by the present invention.
Fig. 4 is a two-dimensional structure of graphene obtained by the present invention amplified by 5 ten thousand times.
Fig. 5 is a sample to be inspected of the graphene antibacterial cloth prepared in the third embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The preparation method of the graphene material comprises the following steps:
1) heating the reaction space to 3500-3800K by electric arc under the protective gas environment;
2) introducing reaction gas into the reaction space, wherein the reaction gas comprises acetylene and/or methane;
3) obtaining the graphene material with 2-5 layers.
Firstly, introducing protective gas into a reaction space, and then heating the reaction space to a certain temperature by using an electric arc. The protective gas is introduced to extrude all air out of the reaction space, so that the reaction of the reaction gas and oxygen in the air under the conditions of high temperature and high pressure is avoided; on one hand, the phenomenon of combustion and even explosion generated in the reaction space in the preparation process is prevented, so that accidents are prevented; on the one hand, the pressure in the reaction space can be controlled, so that the reaction can be carried out more thoroughly. Preferably, the protective gas is an inert gas. For example, the shielding gas may be helium or argon, which is not limited herein.
Wherein the decomposition reaction of the gaseous carbon source is a reversible reaction, and the conversion rate of the reaction gas is between 90 and 95 percent. Wherein the conversion of the reaction gas increases with increasing reaction temperature; at the same temperature, the higher the pressure, the lower the conversion. In order to make the decomposition reaction proceed as forward as possible and prepare more graphene materials, preferably, the pressure of the reaction space is 1.2MP-1.5, specifically 1.2MP, 1.3MP, 1.4MP, 1.5 MP; the reaction temperature is 3500K-3800K, specifically 3500K, 3600K, 3700K and 3800K.
Further, the pressure in the reaction space is controlled by a protective gas, and meanwhile, in order to improve the safety of the experiment, the temperature of the protective gas is controlled to be 50-70 ℃, specifically 50 ℃, 55 ℃, 60 ℃, 65 ℃ and 70 ℃.
Wherein heating the reaction space to 3500-3800K under the protective gas environment comprises: the reaction space is in a magnetic field environment; the plasma arc is generated by the current introduced into the reaction space, and the magnitude of the introduced current is preferably 70-130A, and specifically 70A, 80A, 90A, 100A, 110A, 120A and 130A.
Under the protective gas environment, the reaction space is heated to 3500K-3800K by electric arc, and then reaction gas is introduced into the reaction space. The reaction gas is a gaseous carbon source, and preferably, the reaction gas is acetylene and/or methane. Wherein, common civil liquefied natural gas is subjected to sulfur removal and purification, and methane with purity of 99% can be obtained. The preparation cost is low, the preparation process is simple, and the method is suitable for large-scale industrial production.
Further, the physical morphology of the graphene material was observed by a microscope to obtain electron micrographs as shown in fig. 2 to 4. Specifically, as can be seen from fig. 2, in an enlarged view at a 2 nm level, the material prepared by the first embodiment is a graphene material having a honeycomb structure; as can be seen from fig. 3, in the enlarged view of the 10-20 nm scale, the edge of the graphene material is like a sharp knife; as can be seen from fig. 4, in an enlarged view of 5 ten thousand times, the graphene material has an irregular two-dimensional structure, and sharp points are distributed around the graphene material.
The graphene material with 2-5 layers is prepared in the above manner, and the preparation of the graphene antibacterial cloth by using the graphene material specifically comprises the following different examples:
[ example 1 ]
1. Obtaining 0.1 part of the 2-5-layer graphene material and 99.9 parts of water; and uniformly dispersing the graphene material in the water by ultrasonic waves to obtain an impregnation solution.
2. Selecting the specification of 10g/m2And soaking the melt-blown fabric with the wind resistance of 2Pa in the soaking solution to obtain the soaked melt-blown fabric.
3. And dehydrating the soaked meltblown fabric by using double press rollers to obtain the dehydrated meltblown fabric.
4. And drying the dehydrated melt-blown fabric at 60 ℃ to obtain the graphene antibacterial fabric.
[ example 2 ]
1. Obtaining 5 parts of 2-5 layers of graphene materials and 95 parts of water; and uniformly dispersing the graphene material in the water by ultrasonic waves to obtain an impregnation solution.
2. The selection specification is 150g/m2And soaking the non-woven fabric with the wind resistance of 500Pa in the soaking solution to obtain the soaked non-woven fabric.
3. And dehydrating the soaked non-woven fabric by using a double-pressure roller to obtain the dehydrated non-woven fabric.
4. And drying the dehydrated non-woven fabric at 250 ℃ to obtain the graphene antibacterial fabric.
[ example 3 ]
1. Obtaining 2 parts of 2-5 layers of graphene materials and 98 parts of water; and uniformly dispersing the graphene material in the water by ultrasonic waves to obtain an impregnation solution.
2. The selection specification is 90g/m2And soaking the melt-blown fabric with the wind resistance of 300Pa in the soaking solution to obtain the soaked melt-blown fabric.
3. And dehydrating the soaked meltblown fabric by using double press rollers to obtain the dehydrated meltblown fabric.
4. And drying the dehydrated melt-blown fabric at 160 ℃ to obtain the graphene antibacterial fabric.
[ example 4 ]
1. Obtaining 4 parts of 2-5 layers of graphene materials and 96 parts of water; and uniformly dispersing the graphene material in the water by ultrasonic waves to obtain an impregnation solution.
2. Selecting the specification of 120g/m2And soaking the non-woven fabric with the wind resistance of 200Pa in the soaking solution to obtain the soaked non-woven fabric.
3. And dehydrating the soaked non-woven fabric by using a double-pressure roller to obtain the dehydrated non-woven fabric.
4. And drying the dehydrated non-woven fabric at 100 ℃ to obtain the graphene antibacterial fabric.
[ example 5 ]
1. Obtaining 1 part of 2-5 layers of graphene materials and 99 parts of water; and uniformly dispersing the graphene material in the water by ultrasonic waves to obtain an impregnation solution.
2. The selection specification is 50g/m2And soaking the woven cloth with the wind resistance of 100Pa in the soaking solution to obtain the soaked woven cloth.
3. And dehydrating the soaked textile fabric by using a double-pressure roller to obtain the dehydrated textile fabric.
4. And drying the dehydrated textile fabric at 200 ℃ to obtain the graphene antibacterial fabric.
[ example 6 ]
1. Obtaining 2 parts of 2-layer graphene material and 98 parts of water; and uniformly dispersing the graphene material in the water by ultrasonic waves to obtain an impregnation solution.
2. The selection specification is 50g/m2And soaking the woven cloth with the wind resistance of 100Pa in the soaking solution to obtain the soaked woven cloth.
3. And dehydrating the soaked textile fabric by using a double-pressure roller to obtain the dehydrated textile fabric.
4. And drying the dehydrated textile fabric at 80 ℃ to obtain the graphene antibacterial fabric.
And (3) conveying the sample material to an antibacterial material detection center of the research institute of physical and chemical technology of Chinese academy of sciences for carrying out bacteriostasis rate detection. Referring to fig. 5, the sample material is the graphene antibacterial cloth prepared in example 3, and the control sample is PBS. The detection item is the bacteriostasis rate. According to the standard, the samples to be tested are cut into 5mm square and 0.75 g/bottle is weighed. The detection basis is GB/T20944.3-2008 evaluation of antibacterial performance of textiles in part 3: an oscillation method. The strains of the bacteria for detection are Escherichia coli (Escherichia coli) ATCC 25922, Staphylococcus aureus (Staphylococcus aureus) ATCC 6538, and Candida albicans (Candida albicans) ATCC 10231.
Specific detection data of the detection report are as follows:
wherein, the concentration of the initial inoculation bacterial liquid is respectively as follows: escherichia coli 3.3X 105CFU/ml, Staphylococcus aureus 3.5X 105CFU/ml, Candida albicans 2.8X 105CFU/ml; after the sample to be detected and the inoculated bacterial liquid are mixed for 18 hours, the average value of the number of bacteria is respectively as follows: escherichia coli<1.0CFU/ml, Staphylococcus aureus<1.0CFU/ml, 3.5X 10 Candida albicans3CFU/ml. The detection data show that the bacteriostasis rates of the samples to be detected on escherichia coli, staphylococcus aureus and candida albicans are all more than 99%, and the samples have good bacteriostasis performance.
The detection results are as follows:
the detection result shows that the bacteriostasis rates of the samples to be detected on escherichia coli, staphylococcus aureus and candida albicans are all more than 99 percent and far exceed 60 percent and 70 percent of the standard requirement value. From this, it can be confirmed that the graphene antibacterial cloth prepared in example 3 has a strong bacteriostatic effect.
Further, the strong physical antibacterial performance of the graphene antibacterial cloth can be applied to the medical field and the clothing field. For example, medical devices such as medical masks, wound dressings and medical protective clothing can be made of medical cloth made of the graphene material; the common cloth made of the graphene can be made into clothing articles such as underwear, socks, bedding and the like.
Claims (9)
1. A preparation method of graphene antibacterial cloth is characterized by comprising the following steps:
obtaining 2-5 layers of graphene materials;
weighing the following components in parts by mass: 0.1-5 parts of graphene material and 95-99.9 parts of water; the sum of the mass parts of the components is 100 parts;
uniformly dispersing the graphene material in the water to prepare a dipping solution;
soaking the cloth to be planted in the soaking solution to obtain soaked planting cloth;
and dehydrating and drying the soaked planting cloth to obtain the graphene antibacterial cloth.
2. The preparation method of the graphene antibacterial cloth according to claim 1, wherein the step of obtaining the 2-5-layer graphene material comprises the following steps:
arc heating the reaction space to 3500-3800K under the protective gas environment, wherein the pressure of the reaction space is kept between 1.2 and 1.5MPa by using the protective gas;
introducing reaction gas into the reaction space, wherein the reaction gas comprises acetylene and/or methane;
obtaining the graphene material with 2-5 layers.
3. The method for preparing graphene antibacterial cloth according to claim 1, wherein the cloth to be planted comprises at least one of melt-blown cloth, non-woven cloth or woven cloth.
4. The preparation method of the graphene antibacterial cloth according to claim 1, wherein the specification of the cloth to be planted is 10-150g/m2(ii) a The wind resistance of the cloth to be planted is 2-500 Pa.
5. The method for preparing the graphene antibacterial cloth according to claim 1, wherein the process of dehydrating and drying the soaked planting cloth comprises:
dehydrating the soaked planting cloth by using double press rollers to obtain dehydrated planting cloth;
and drying the dehydrated planting cloth at the temperature of 60-250 ℃ to obtain the graphene antibacterial cloth.
6. The method for preparing the graphene antibacterial cloth according to claim 1, wherein the process of uniformly dispersing the graphene material in the water comprises:
and uniformly dispersing the graphene material in the water by ultrasonic waves to obtain the impregnation solution.
7. The graphene antibacterial cloth is characterized by being prepared by the preparation method of the graphene antibacterial cloth according to any one of claims 1 to 6;
wherein the graphene planting density of the graphene antibacterial cloth is 0.1-30g/m2。
8. The application of the graphene antibacterial cloth in the medical field is characterized in that the graphene antibacterial cloth according to claim 7 is applied in the medical field.
9. The application of the graphene antibacterial cloth in the field of clothing is characterized in that the graphene antibacterial cloth according to claim 7 is applied in the field of clothing.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113152073A (en) * | 2021-04-25 | 2021-07-23 | 萬豐實業香港有限公司 | Graphene cloth and surface treatment process and application thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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