CN113152073A - Graphene cloth and surface treatment process and application thereof - Google Patents
Graphene cloth and surface treatment process and application thereof Download PDFInfo
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- CN113152073A CN113152073A CN202110449153.4A CN202110449153A CN113152073A CN 113152073 A CN113152073 A CN 113152073A CN 202110449153 A CN202110449153 A CN 202110449153A CN 113152073 A CN113152073 A CN 113152073A
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- graphene
- cloth
- graphene cloth
- sodium hypochlorite
- surface treatment
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- 239000004744 fabric Substances 0.000 title claims abstract description 136
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 131
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 131
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000004381 surface treatment Methods 0.000 title claims abstract description 29
- 230000001590 oxidative effect Effects 0.000 claims abstract description 20
- 239000007800 oxidant agent Substances 0.000 claims abstract description 18
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 56
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical group [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 56
- 238000001035 drying Methods 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 20
- 230000000840 anti-viral effect Effects 0.000 abstract description 8
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 5
- 238000004659 sterilization and disinfection Methods 0.000 description 14
- 230000001954 sterilising effect Effects 0.000 description 13
- -1 masks Substances 0.000 description 10
- 229910002804 graphite Inorganic materials 0.000 description 9
- 239000010439 graphite Substances 0.000 description 9
- 239000004745 nonwoven fabric Substances 0.000 description 6
- 238000002791 soaking Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 230000001580 bacterial effect Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 244000309467 Human Coronavirus Species 0.000 description 2
- 108020000999 Viral RNA Proteins 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000003013 cytotoxicity Effects 0.000 description 2
- 231100000135 cytotoxicity Toxicity 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000010301 surface-oxidation reaction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 description 1
- 102400000888 Cholecystokinin-8 Human genes 0.000 description 1
- 101800005151 Cholecystokinin-8 Proteins 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- IZTQOLKUZKXIRV-YRVFCXMDSA-N sincalide Chemical compound C([C@@H](C(=O)N[C@@H](CCSC)C(=O)NCC(=O)N[C@@H](CC=1C2=CC=CC=C2NC=1)C(=O)N[C@@H](CCSC)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(N)=O)NC(=O)[C@@H](N)CC(O)=O)C1=CC=C(OS(O)(=O)=O)C=C1 IZTQOLKUZKXIRV-YRVFCXMDSA-N 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Images
Classifications
-
- 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
- D06M11/07—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 halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
- D06M11/30—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 halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with oxides of halogens, oxyacids of halogens or their salts, e.g. with perchlorates
-
- 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/40—Fibres of carbon
Abstract
The invention discloses a graphene cloth material and a surface treatment process and application thereof, wherein the surface treatment process of the graphene cloth material comprises the following steps: and oxidizing the graphene cloth by using an oxidant to at least partially oxidize the graphene in the graphene cloth. The surface treatment process for the graphene cloth material provided by the technical scheme of the invention has the advantage of improving the antibacterial and antiviral effects of the graphene cloth material.
Description
Technical Field
The invention relates to the technical field of sterilization and disinfection, and particularly relates to a graphene cloth, a product thereof and a surface treatment process.
Background
In recent years, graphene and mixed materials thereof have gained wide research interest as sterilization materials. By forming the composite material by the graphene and the metal, the sterilization performance of the composite material can be further enhanced by the metal. The materials can be used for surface sterilization of materials, such as masks, air filters and the like, and have the effect of purifying air.
Although the graphene can be endowed with a certain sterilization function after being mixed with a common cloth, the sterilization capability of the graphene is easily reduced due to the influence of environmental factors, and the antibacterial and antiviral effects of the graphene cloth are influenced.
Disclosure of Invention
The invention mainly aims to provide a surface treatment process of a graphene cloth, and aims to improve the antibacterial and antiviral effects of the graphene cloth.
In order to achieve the above object, the surface treatment process of the graphene cloth provided by the invention comprises the following steps:
and oxidizing the graphene cloth by using an oxidant to at least partially oxidize the graphene in the graphene cloth.
In one embodiment, the oxidizing agent is a sodium hypochlorite solution.
In one embodiment, the mass percent of sodium hypochlorite in the sodium hypochlorite solution is between 2% and 4%.
In one embodiment, graphene cloth is oxidized using an oxidant, including:
and (3) placing the graphene cloth into a sodium hypochlorite solution to be soaked for 60-120 minutes.
In one embodiment, the graphene cloth is oxidized by using an oxidant, and the method further includes:
the sodium hypochlorite solution is heated while the graphene cloth is soaked with the sodium hypochlorite solution.
In one embodiment, the sodium hypochlorite solution is heated, specifically:
the temperature of the sodium hypochlorite solution is maintained at 60-80 ℃.
In one embodiment, the surface treatment process further comprises:
washing the soaked graphene cloth with deionized water; and
and drying and cleaning the finished graphene cloth.
In an embodiment, the substrate of the graphene fabric is a woven fabric or a non-woven fabric.
The invention further provides the graphene cloth which is treated by adopting the surface treatment process.
The invention also provides an application of the graphene cloth, which applies the graphene cloth to at least one of the following products: mask, protective clothing, filter membrane, band-aid.
The surface treatment process of graphite alkene cloth of this application scheme, through oxidant graphite alkene cloth, can at least partly oxidize graphite alkene and cloth substrate in the graphite alkene cloth to can strengthen the surface oxidation degree of graphite alkene cloth, with the anti environmental factor ability of reinforcing graphite alkene cloth, can strengthen the sterilization of graphite alkene cloth, antiviral effect finally.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic flow chart of an embodiment of a surface treatment process for graphene cloth according to the present invention;
fig. 2 is a comparison graph of the residual condition and the antiviral performance of the bacterial colonies on the graphene cloth material treated by the sodium hypochlorite solution and the graphene cloth material not treated by the sodium hypochlorite solution;
FIG. 3 is a comparison graph of the inhibition results of the graphene cloth treated by the sodium hypochlorite solution and the traditional meltblown on human coronavirus;
fig. 4 is a comparison graph of cytotoxicity of graphene cloth and meltblown cloth after treatment with sodium hypochlorite solution.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B" including either scheme A, or scheme B, or a scheme in which both A and B are satisfied. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a surface treatment process of graphene cloth.
In the embodiment of the invention, the surface treatment process of the graphene cloth comprises the following steps:
and oxidizing the graphene cloth by using an oxidant to at least partially oxidize the graphene in the graphene cloth.
Specifically, the substrate of the graphene cloth is a non-woven fabric, and the graphene cloth can be prepared by mixing a certain mass percentage of graphene material in the material of the non-woven fabric, or mixing the prepared non-woven fabric with graphene slurry, or coating graphene paint on the surface of the prepared non-woven fabric.
Graphene materials are added to the graphene cloth on the basis of the non-woven fabric, so that the graphene cloth has the sterilization characteristic of graphene. However, the cloth mixed with graphene has weak sterilization capability, and the sterilization capability of the cloth is easily interfered by the external environment and is rapidly weakened. For example, after a conventional graphene cloth is exposed to the sun for 10 minutes, the sterilization effect of the exposed graphene cloth is only 55.8% of that of the graphene cloth without exposure. Among them, as the exposure time increases, the sterilization capability of the graphene cloth is more reduced. It is worth explaining that the number of the residual bacterial colonies on the two pieces of graphene cloth can be respectively detected after unit time by setting the bacterial colonies with unit weight on the two pieces of exposed and unexposed graphene cloth, so as to quantify the influence of sunlight factors on the sterilization capacity of the conventional graphene cloth. For testing other environmental factors, such as temperature, humidity, air flow, etc., reference is also made to the above-mentioned test methods, which are not further described herein.
According to the surface treatment process, graphene and cloth base materials in the graphene cloth can be at least partially oxidized through the oxidant graphene cloth, so that the surface oxidation degree of the graphene cloth can be enhanced, the environment factor resistance of the graphene cloth can be enhanced, and the sterilization and antiviral effects of the graphene cloth can be finally enhanced.
The at least partial oxidation means that the graphene in the graphene cloth and the cloth substrate can be partially or completely oxidized according to different reaction times of the oxidant and the graphene cloth. It is worth noting that the oxidation process is performed from the outer layer of the graphene cloth to the inner layer.
In other embodiments, the graphene cloth may also be a woven cloth.
In one embodiment, the oxidizing agent is a sodium hypochlorite solution. It can be understood that sodium hypochlorite's stability is higher, can effective oxidation graphite alkene to sodium hypochlorite itself also has the ability of disinfecting, can further strengthen the performance that graphite alkene cloth restraines the virus.
Of course, in other embodiments, the oxidant may also be a hydrogen peroxide solution.
In one embodiment, the mass percent of sodium hypochlorite in the sodium hypochlorite solution is between 2% and 4%. That is, the sodium hypochlorite concentration is 2% to 4%. Illustratively, the mass percentage of the sodium hypochlorite may be 2.0%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3.0%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9%, 4.0%.
In an embodiment based on that the oxidant is a sodium hypochlorite solution, the graphene cloth oxidized by the oxidant includes:
and (3) placing the graphene cloth into a sodium hypochlorite solution to be soaked for 60-120 minutes.
Specifically, after the graphene cloth is placed in a sodium hypochlorite solution, the graphene cloth can be fully contacted with the sodium hypochlorite solution so as to fully oxidize the graphene cloth; and 60-120 minutes can guarantee the reaction time of sodium hypochlorite and graphene. If the soaking time is less than 60 minutes, the reaction time of the graphene cloth and the sodium hypochlorite solution is not enough, and if the soaking time is more than 120 minutes, the soaking time is too long, and the sodium hypochlorite solution may damage the graphene cloth. For example, the length of time that the graphene cloth is soaked in the sodium hypochlorite solution may be 60 minutes, 65 minutes, 70 minutes, 75 minutes, 80 minutes, 85 minutes, 90 minutes, 95 minutes, 100 minutes, 105 minutes, 110 minutes, 115 minutes, and 120 minutes.
In one embodiment, the graphene cloth is oxidized by using an oxidant, and the method further includes:
the sodium hypochlorite solution is heated while the graphene cloth is soaked with the sodium hypochlorite solution.
It can be understood that the sodium hypochlorite solution is heated while the graphene cloth is soaked by the sodium hypochlorite solution, so that the reaction rate can be effectively increased, and the oxidation effect of the sodium hypochlorite solution on the graphene cloth is enhanced.
Specifically, a sodium hypochlorite solution is heated, specifically:
the temperature of the sodium hypochlorite solution is maintained at 60-80 ℃.
The temperature range of 60-80 ℃ is the optimal reaction range of the sodium hypochlorite solution, and the reaction rate and efficiency of the sodium hypochlorite solution are reduced when the temperature range is deviated from the optimal reaction range. For example, when the graphene cloth is immersed in the sodium hypochlorite solution, the temperature of the sodium hypochlorite solution may be maintained at 60 ℃, 61 ℃, 62 ℃, 63 ℃, 64 ℃, 65 ℃, 66 ℃, 67 ℃, 68 ℃, 69 ℃, 70 ℃, 71 ℃, 72 ℃, 73 ℃, 74 ℃, 75 ℃, 76 ℃, 77 ℃, 78 ℃, 79 ℃ and 80 ℃.
Further, the surface treatment process of the graphene cloth material further comprises the following steps:
washing the soaked graphene cloth with deionized water; and
and drying and cleaning the finished graphene cloth.
The graphene cloth material which is soaked and cleaned by the deionized water can effectively remove the sodium hypochlorite solution remained on the surface of the graphene cloth material, so that the graphene cloth material can be dried conveniently; and drying can accelerate the drying of the graphene cloth so as to shorten the processing time of the process.
As shown in fig. 1, in one embodiment, combining the above embodiments, the surface treatment process of graphene cloth of the present application includes the following steps:
s10, soaking: placing the graphene cloth into a 2% -4% sodium hypochlorite solution to be soaked for 60-120 minutes;
s20, heating: while soaking the graphene cloth, maintaining the temperature of a sodium hypochlorite solution at 60-80 ℃;
s30, cleaning: washing the soaked graphene cloth with deionized water;
s40, drying: and drying and cleaning the finished graphene cloth.
With reference to fig. 2-4, after the surface treatment process of the graphene cloth according to the technical scheme of the application is adopted, the antibacterial ability and the antiviral ability of the graphene cloth are greatly enhanced.
As shown in fig. 2, fig. 2 shows a comparison graph of the residual condition of colonies and the antiviral performance of the colonies on the graphene cloth material treated with the sodium hypochlorite solution and the graphene cloth material not treated with the sodium hypochlorite solution. As can be seen from FIG. 2, the bactericidal function of the cloth was greatly enhanced by the sodium hypochlorite solution treatment, using Escherichia coli as a test. The colony count of the original cloth is 785CFU/mL, the colony count of the untreated cloth drops to 487 CFU/mL after 30 minutes, and the colony count of the treated cloth is basically not detected. This means that the sodium chlorate solution treatment increased the antimicrobial capacity from 38% to about 100%.
As shown in fig. 3, fig. 3 is a graph comparing the inhibition results of the sodium hypochlorite solution treated graphene cloth and the traditional meltblown on human coronavirus. As can be seen from fig. 3, under the irradiation of 1 sunlight intensity, the expression of viral RNA in the graphene cloth treated with the sodium hypochlorite solution was not detected. In contrast, the relative expression of viral RNA in meltblown was up to 80% under the same experimental conditions.
As shown in fig. 4, fig. 4 shows a graph comparing cytotoxicity of graphene cloth treated with sodium hypochlorite solution and meltblown cloth. As can be seen from FIG. 4, the CCK8 detection kit shows that the cells on the graphene cloth treated by the sodium hypochlorite solution can maintain the cell activity of more than 90%, which confirms that the method has higher biocompatibility.
The invention further provides the graphene cloth, and the graphene cloth is treated by adopting any surface treatment process of the graphene cloth. The specific structure of the surface treatment process of the graphene cloth refers to the above embodiments, and since the graphene cloth adopts all the technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and are not repeated herein.
The invention also provides an application of the graphene cloth, which is used for applying any graphene cloth to at least one of the following products: mask, protective clothing, filter membrane, band-aid. Since the graphene cloth is applied by all technical schemes of all the embodiments, at least all the beneficial effects brought by the technical schemes of the embodiments are achieved, and are not repeated herein.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A surface treatment process of graphene cloth is characterized by comprising
And oxidizing the graphene cloth by using an oxidant to at least partially oxidize the graphene in the graphene cloth.
2. The surface treatment process for graphene cloth according to claim 2, wherein the oxidant is a sodium hypochlorite solution.
3. The surface treatment process for the graphene cloth according to claim 2, wherein the mass percentage of the sodium hypochlorite in the sodium hypochlorite solution is 2% -4%.
4. The surface treatment process of the graphene cloth according to claim 2, wherein the graphene cloth is oxidized by using an oxidant, comprising:
and (3) placing the graphene cloth into a sodium hypochlorite solution to be soaked for 60-120 minutes.
5. The surface treatment process for graphene cloth according to claim 4, wherein the graphene cloth is oxidized by using an oxidant, further comprising:
the sodium hypochlorite solution is heated while the graphene cloth is soaked with the sodium hypochlorite solution.
6. The surface treatment process for the graphene cloth according to claim 5, wherein a sodium hypochlorite solution is heated, and specifically comprises:
the temperature of the sodium hypochlorite solution is maintained at 60-80 ℃.
7. The surface treatment process for graphene cloth according to claim 6, further comprising:
washing the soaked graphene cloth with deionized water; and
and drying and cleaning the finished graphene cloth.
8. The surface treatment process for the graphene cloth according to claim 1, wherein the substrate of the graphene cloth is woven cloth or non-woven cloth.
9. A graphene cloth, characterized in that it is treated by the surface treatment process according to any one of claims 1 to 8.
10. Use of a graphene cloth according to claim 9 in at least one of the following products: mask, protective clothing, filter membrane, band-aid.
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| CN202110449153.4A CN113152073A (en) | 2021-04-25 | 2021-04-25 | Graphene cloth and surface treatment process and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110449153.4A CN113152073A (en) | 2021-04-25 | 2021-04-25 | Graphene cloth and surface treatment process and application thereof |
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- 2021-04-25 CN CN202110449153.4A patent/CN113152073A/en active Pending
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