CN114395915A - Polypropylene/reduced graphene oxide coaxial-coated high-conductivity fiber and preparation method thereof - Google Patents
Polypropylene/reduced graphene oxide coaxial-coated high-conductivity fiber and preparation method thereof Download PDFInfo
- Publication number
- CN114395915A CN114395915A CN202210162915.7A CN202210162915A CN114395915A CN 114395915 A CN114395915 A CN 114395915A CN 202210162915 A CN202210162915 A CN 202210162915A CN 114395915 A CN114395915 A CN 114395915A
- Authority
- CN
- China
- Prior art keywords
- npfs
- graphene oxide
- drying
- polypropylene
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- D06M11/73—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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/182—Graphene
- C01B32/184—Preparation
-
- 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
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/53—Polyethers
-
- 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
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/20—Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups
Abstract
The invention belongs to the technical field of new material preparation, and particularly discloses a preparation method of coaxially coated high-conductivity fibers by using polypropylene/reduced graphene oxide, which comprises the following steps: (1) preparing an aqueous GO solution; (2) placing the cleaned waste non-woven polypropylene fabric into a mixed solution of a swelling agent and a surfactant for treatment for a period of time, and then drying to obtain a modified non-woven polypropylene fabric (T-NPFs); (3) placing T-NPFs in the GO aqueous solution for infiltration, and then drying to obtain polypropylene hydrocarbon/graphene oxide coaxial coated fibers (GO-NPFs); (4) and (3) placing the GO-NPFs into a reducing agent for treatment, and then cleaning and drying to obtain the polypropylene hydrocarbon/reduced graphene oxide coaxially-coated high-conductivity fibers (rGO-NPFs). The method can recover the W-NPFs for reuse, maintain the loose fiber network characteristic of the W-NPFs, and endow the NPFs with a functional layer coaxially coated by rGO so as to provide higher conductivity.
Description
Technical Field
The invention belongs to the technical field of new material preparation, and particularly relates to a polypropylene/reduced graphene oxide coaxially-coated high-conductivity fiber and a preparation method thereof.
Background
Non-woven polypropylene fabric (NPF) as an air filter for Personal Protective Equipment (PPE) has attracted public attention due to the recent global CoVid-19 pandemic, which has led to its mass production to meet demand. However, the good properties of waste non-woven polypropylene fabrics (W-NPFs) and the white contamination of PPE after use still pose undeniable dilemmas and concerns. Some properties of W-NPFs remain after use, where the softness and extremely high specific surface area demonstrate surprising possibilities for developing wearable devices, such as flexible energy storage materials, nanogenerators, electromagnetic interference shielding, strain sensors and biosensors. All these applications require good electrical conductivity, which is not in line with the original Properties of Polypropylene (PP). Therefore, graphene and its derivatives are introduced into PP composite systems due to their huge surface area to volume ratio, electrical conductivity and chemical activity. Particularly, reduced graphene oxide (rGO) plays an important role in synthesis due to rich oxygen-containing functional groups of the precursor Graphene Oxide (GO) and the self-controllable conductivity of the reduced Graphene Oxide (GO).
Many pioneers have achieved electrical conductivity by separate methods, which are mainly classified into three categories, in-situ copolymerization, melt blending, and post-formation coating. In situ copolymerization does improve mechanical strength and crystallization behavior, but requires inefficient rGO doping to reach the percolation threshold for the target conductivity. Melt blending is similar to in situ copolymerization, based on the flowability of PP as a thermoplastic in the molten state and the shear stress of the external equipment on the melt to disperse the filler, depending on the fine choice of dispersant and the complex design of the mixing facilities. Both of the above methods require a three-dimensional conductive network of rGO that is completely dispersed between polymer chains or locally aggregated along the crystalline particle contact surface. The post-forming coating is achieved by intentionally designed external surface interactions that are more capable of maintaining the properties of the PP, while partial interactions can lead to degradation or disappearance of the PP within hours. This approach can be conversely divided into sandwich and coaxial cladding configurations. The sandwich structure, which uses NPFs as a template to coat rGO thin films on both the top and bottom sides, achieves ultra-high conductivity, but unfortunately is forced to give up porosity as a fabric. However, the coaxial cladding structure is intended to coat the rGO to the surface of each fiber, thus maintaining the original structure, but limits the electrical conductivity due to the lack of continuity of the rGO network, which requires a corresponding solution.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the polypropylene hydrocarbon/reduced graphene oxide coaxially-coated high-conductivity fiber and the preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation method of polypropylene hydrocarbon/reduced graphene oxide coaxial-coated high-conductivity fibers comprises the following steps:
(1) firstly, stripping Graphene Oxide (GO) in a high-pressure homogenizer, and then dispersing in water in an ultrasonic generator to obtain a GO aqueous solution for later use;
(2) putting the cleaned waste non-woven polypropylene fabrics (W-NPFs) into a mixed solution of a swelling agent and a surfactant for treatment for a period of time, then drying, and repeating the steps for multiple times to obtain modified non-woven polypropylene fabrics (T-NPFs);
(3) putting the T-NPFs prepared in the step (2) into the GO aqueous solution obtained in the step (1) for soaking, then drying, repeating the soaking and drying steps for multiple times, and obtaining poly (trimethylene carbonate)/graphene oxide coaxial coated fibers (GO-NPFs);
(4) and (3) treating the GO-NPFs prepared in the step (3) in a reducing agent, and then cleaning and drying to obtain the polypropylene hydrocarbon/reduced graphene oxide coaxially-coated high-conductivity fibers (rGO-NPFs).
Preferably, the Graphene Oxide (GO) in the step (1) is prepared by oxidizing graphite by a modified Hummers method, wherein the graphite is crystalline flake graphite, natural graphite or expanded graphite, and the diameter of the graphite flake is 50nm to 3 μm; the pressure of the high-pressure homogenizer is 120 torr, and the dispersion time is 30 min.
Preferably, the concentration of the aqueous GO solution in step (1) is between 0.1mg/ml and 10 mg/ml.
Preferably, the cleaned waste non-woven polypropylene fabrics (W-NPFs) in the step (2) are obtained by placing the recovered W-NPFs into 75% ethanol water solution for disinfection, cleaning and drying.
Preferably, in the step (2), the swelling agent is a mixed solution of ethyl acetate and water in a volume ratio of 1:1, and the treatment time is 36 h.
Preferably, the surfactant in the step (2) is triton, and the amount of the surfactant is 0.5 wt% of the swelling agent solution.
Preferably, the soaking and drying steps in the step (4) are repeated for 1 to 16 times.
Preferably, in the step (4), the reducing agent is thiourea dioxide solution or sodium borohydride solution, and the mass concentration of the reducing agent is 0.5%.
Preferably, the preparation method of graphene oxide by the improved hummers method comprises the following steps:
(1) weighing 10g of graphene, pouring into a beaker, weighing 200ml of concentrated sulfuric acid, pouring into the beaker, putting in magnetons, stirring for 2 hours by using a magnetic stirrer, adding 30g of potassium permanganate during the stirring, and finishing the adding for 1 hour; (2) putting the beaker into an ultrasonic cleaning machine for ultrasonic treatment for 8 hours; (3) placing the beaker on a magnetic stirrer, slowly adding 450ml of deionized water while stirring, and stirring for 1 h; (4) adding 1400ml of deionized water, adding 150ml of hydrogen peroxide, taking down the beaker and standing; (5) pouring out the supernatant, taking the base solution, and centrifuging by using a centrifuge until the pH value is 6; (6) and pouring the mixture into a watch glass, and putting the watch glass into an oven for drying to obtain the graphene oxide.
In addition, the invention also claims the polypropylene hydrocarbon/reduced graphene oxide coaxial-coated high-conductivity fiber prepared by the preparation method.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention carries out coaxial coating modification on the molded commercial product, thereby greatly reducing the cost and difficulty;
2. after the Triton X-100 is coated on a material for molding, the physical and chemical properties of polypropylene cannot be influenced;
3. the small-size graphene is not like a film formed on the whole surface of a material by the prior art, but coaxially wraps each fiber in the melt-blown fabric, so that the micro-nano structure and the characteristics of the melt-blown fabric are greatly reserved;
4. the invention selects the chemical reagents which are safe and nontoxic products, and accords with the environmental protection concept.
Drawings
FIG. 1 is a diagram of rGO-NPFs samples prepared in example 1 of the present invention;
FIG. 2 is a scanning electron microscope image of the surface of rGO-NPFs prepared in example 1 of the present invention;
FIG. 3 is a scanning electron microscope image of rGO-NPFs coated details prepared in example 1 of the present invention;
FIG. 4 shows the electrical conductivity of the samples obtained in examples 1 to 5 of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.
The present invention will be described in detail by way of examples, but the scope of the present invention is not limited thereto.
Example 1
A preparation method of polypropylene hydrocarbon/reduced graphene oxide coaxial-coated high-conductivity fibers comprises the following steps:
(1) firstly, screening scale graphite with an equivalent sheet diameter of less than 1.13 mu m by a 10000-mesh screen, then processing the screened scale graphite by an improved Hummers method to obtain Graphene Oxide (GO), then repeatedly stripping the Graphene Oxide (GO) under the pressure of 120 torr of a high-pressure homogenizer, and then dispersing the Graphene Oxide (GO) in water in an ultrasonic generator for 30min to obtain a GO aqueous solution with the concentration of 1mg/ml for later use;
(2) putting the recycled waste non-woven polypropylene fabrics (W-NPFs) into 75% ethanol water solution for disinfection, cleaning and drying to obtain cleaned waste non-woven polypropylene fabrics (W-NPFs), then putting the cleaned waste non-woven polypropylene fabrics (W-NPFs) into a mixed solution of Triton X-100 ethyl acetate and water for treatment for 24 hours, and then putting the treated waste non-woven polypropylene fabrics into a 60 ℃ environment for drying to obtain modified non-woven polypropylene fabrics (T-NPFs); wherein the volume ratio of ethyl acetate to water is 1:1, and the Latong X-100 accounts for 0.5 percent of the mixed solution of ethyl acetate and water;
(3) placing the T-NPFs prepared in the step (2) in the GO aqueous solution obtained in the step (1) for micro-flow infiltration treatment for 30min, taking out and drying, and repeating the infiltration and drying steps for 1 time to obtain polypropylene hydrocarbon/graphene oxide coaxial coated fibers (GO-NPFs);
(4) and (3) placing the GO-NPFs prepared in the step (3) into thiourea dioxide aqueous solution with the temperature of 60 ℃ and the concentration of 0.5mol/L for reduction for 30s, then kneading and washing under flowing water, and drying at 75 ℃ to obtain the polypropylene hydrocarbon/reduced graphene oxide coaxially-coated high-conductivity fibers (rGO-NPFs).
Example 2
A preparation method of polypropylene hydrocarbon/reduced graphene oxide coaxial-coated high-conductivity fibers comprises the following steps:
(1) firstly, screening scale graphite with an equivalent sheet diameter of less than 1.13 mu m by a 10000-mesh screen, then processing the screened scale graphite by an improved Hummers method to obtain Graphene Oxide (GO), then repeatedly stripping the Graphene Oxide (GO) under the pressure of 120 torr of a high-pressure homogenizer, and then dispersing the Graphene Oxide (GO) in water in an ultrasonic generator for 30min to obtain a GO aqueous solution with the concentration of 1mg/ml for later use;
(2) putting the recycled waste non-woven polypropylene fabrics (W-NPFs) into 75% ethanol water solution for disinfection, cleaning and drying to obtain cleaned waste non-woven polypropylene fabrics (W-NPFs), then putting the cleaned waste non-woven polypropylene fabrics (W-NPFs) into a mixed solution of Triton X-100 ethyl acetate and water for treatment for 24 hours, and then putting the treated waste non-woven polypropylene fabrics into a 60 ℃ environment for drying to obtain modified non-woven polypropylene fabrics (T-NPFs); wherein the volume ratio of ethyl acetate to water is 1:1, and the Latong X-100 accounts for 0.5 percent of the mixed solution of ethyl acetate and water;
(3) placing the T-NPFs prepared in the step (2) in the GO aqueous solution obtained in the step (1) for micro-flow infiltration treatment for 30min, taking out and drying, and repeating the infiltration and drying steps for 3 times to obtain polypropylene hydrocarbon/graphene oxide coaxial coated fibers (GO-NPFs);
(4) and (3) placing the GO-NPFs prepared in the step (3) into thiourea dioxide aqueous solution with the temperature of 60 ℃ and the concentration of 0.5mol/L for reduction for 30s, then kneading and washing under flowing water, and drying at 75 ℃ to obtain the polypropylene hydrocarbon/reduced graphene oxide coaxially-coated high-conductivity fibers (rGO-NPFs).
Example 3
A preparation method of polypropylene hydrocarbon/reduced graphene oxide coaxial-coated high-conductivity fibers comprises the following steps:
(1) firstly, screening scale graphite with an equivalent sheet diameter of less than 1.13 mu m by a 10000-mesh screen, then processing the screened scale graphite by an improved Hummers method to obtain Graphene Oxide (GO), then repeatedly stripping the Graphene Oxide (GO) under the pressure of 120 torr of a high-pressure homogenizer, and then dispersing the Graphene Oxide (GO) in water in an ultrasonic generator for 30min to obtain a GO aqueous solution with the concentration of 1mg/ml for later use;
(2) putting the recycled waste non-woven polypropylene fabrics (W-NPFs) into 75% ethanol water solution for disinfection, cleaning and drying to obtain cleaned waste non-woven polypropylene fabrics (W-NPFs), then putting the cleaned waste non-woven polypropylene fabrics (W-NPFs) into a mixed solution of Triton X-100 ethyl acetate and water for treatment for 24 hours, and then putting the treated waste non-woven polypropylene fabrics into a 60 ℃ environment for drying to obtain modified non-woven polypropylene fabrics (T-NPFs); wherein the volume ratio of ethyl acetate to water is 1:1, and the Latong X-100 accounts for 0.5 percent of the mixed solution of ethyl acetate and water;
(3) placing the T-NPFs prepared in the step (2) in the GO aqueous solution obtained in the step (1) for infiltration treatment for 30min in a micro-flowing mode, taking out and drying the T-NPFs, and repeating the infiltration and drying steps for 7 times to obtain polypropylene hydrocarbon/graphene oxide coaxial coated fibers (GO-NPFs);
(4) and (3) placing the GO-NPFs prepared in the step (3) into thiourea dioxide aqueous solution with the temperature of 60 ℃ and the concentration of 0.5mol/L for reduction for 30s, then kneading and washing under flowing water, and drying at 75 ℃ to obtain the polypropylene hydrocarbon/reduced graphene oxide coaxially-coated high-conductivity fibers (rGO-NPFs).
Example 4
A preparation method of polypropylene hydrocarbon/reduced graphene oxide coaxial-coated high-conductivity fibers comprises the following steps:
(1) firstly, screening scale graphite with an equivalent sheet diameter of less than 1.13 mu m by a 10000-mesh screen, then processing the screened scale graphite by an improved Hummers method to obtain Graphene Oxide (GO), then repeatedly stripping the Graphene Oxide (GO) under the pressure of 120 torr of a high-pressure homogenizer, and then dispersing the Graphene Oxide (GO) in water in an ultrasonic generator for 30min to obtain a GO aqueous solution with the concentration of 1mg/ml for later use;
(2) putting the recycled waste non-woven polypropylene fabrics (W-NPFs) into 75% ethanol water solution for disinfection, cleaning and drying to obtain cleaned waste non-woven polypropylene fabrics (W-NPFs), then putting the cleaned waste non-woven polypropylene fabrics (W-NPFs) into a mixed solution of Triton X-100 ethyl acetate and water for treatment for 24 hours, and then putting the treated waste non-woven polypropylene fabrics into a 60 ℃ environment for drying to obtain modified non-woven polypropylene fabrics (T-NPFs); wherein the volume ratio of ethyl acetate to water is 1:1, and the Latong X-100 accounts for 0.5 percent of the mixed solution of ethyl acetate and water;
(3) placing the T-NPFs prepared in the step (2) in the GO aqueous solution obtained in the step (1) for infiltration treatment for 30min in a micro-flowing mode, taking out and drying the T-NPFs, and repeating the infiltration and drying steps for 11 times to obtain polypropylene hydrocarbon/graphene oxide coaxial coated fibers (GO-NPFs);
(4) and (3) placing the GO-NPFs prepared in the step (3) into thiourea dioxide aqueous solution with the temperature of 60 ℃ and the concentration of 0.5mol/L for reduction for 30s, then kneading and washing under flowing water, and drying at 75 ℃ to obtain the polypropylene hydrocarbon/reduced graphene oxide coaxially-coated high-conductivity fibers (rGO-NPFs).
Example 5
A preparation method of polypropylene hydrocarbon/reduced graphene oxide coaxial-coated high-conductivity fibers comprises the following steps:
(1) firstly, screening scale graphite with an equivalent sheet diameter of less than 1.13 mu m by a 10000-mesh screen, then processing the screened scale graphite by an improved Hummers method to obtain Graphene Oxide (GO), then repeatedly stripping the Graphene Oxide (GO) under the pressure of 120 torr of a high-pressure homogenizer, and then dispersing the Graphene Oxide (GO) in water in an ultrasonic generator for 30min to obtain a GO aqueous solution with the concentration of 1mg/ml for later use;
(2) putting the recycled waste non-woven polypropylene fabrics (W-NPFs) into 75% ethanol water solution for disinfection, cleaning and drying to obtain cleaned waste non-woven polypropylene fabrics (W-NPFs), then putting the cleaned waste non-woven polypropylene fabrics (W-NPFs) into a mixed solution of Triton X-100 ethyl acetate and water for treatment for 24 hours, and then putting the treated waste non-woven polypropylene fabrics into a 60 ℃ environment for drying to obtain modified non-woven polypropylene fabrics (T-NPFs); wherein the volume ratio of ethyl acetate to water is 1:1, and the Latong X-100 accounts for 0.5 percent of the mixed solution of ethyl acetate and water;
(3) placing the T-NPFs prepared in the step (2) in the GO aqueous solution obtained in the step (1) for micro-flow infiltration treatment for 30min, taking out and drying, and repeating the infiltration and drying steps for 15 times to obtain polypropylene hydrocarbon/graphene oxide coaxial coated fibers (GO-NPFs);
(4) and (3) placing the GO-NPFs prepared in the step (3) into thiourea dioxide aqueous solution with the temperature of 60 ℃ and the concentration of 0.5mol/L for reduction for 30s, then kneading and washing under flowing water, and drying at 75 ℃ to obtain the polypropylene hydrocarbon/reduced graphene oxide coaxially-coated high-conductivity fibers (rGO-NPFs).
The polypropylene/graphene oxide coaxially coated high-conductivity fibers prepared in examples 1 to 5 were subjected to performance tests:
the conductivity detection method comprises the following steps: a four-probe resistance tester is adopted for testing, firstly, a material is cut into original pieces with the diameter of 5cm, and then, the thickness of a sample is measured, checked and recorded, and the thickness is ensured not to exceed 400 micrometers; then placing four probes at a plurality of points which are more than 1cm away from the edge of the material for measurement; and finally counting the results and calculating an error bar, wherein the specific result is shown in figure 4.
The preferred embodiments of the present invention have been described above in detail, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention, including combinations of various technical features in any other suitable way, and these simple modifications and combinations should also be regarded as the disclosure of the invention, and all fall within the scope of the invention.
Claims (9)
1. A preparation method of polypropylene hydrocarbon/reduced graphene oxide coaxial-coated high-conductivity fibers is characterized by comprising the following steps:
(1) firstly, stripping Graphene Oxide (GO) in a high-pressure homogenizer, and then dispersing in water in an ultrasonic generator to obtain a GO aqueous solution for later use;
(2) putting the cleaned waste non-woven polypropylene fabrics (W-NPFs) into a mixed solution of a swelling agent and a surfactant for treatment for a period of time, then drying, and repeating the steps for multiple times to obtain modified non-woven polypropylene fabrics (T-NPFs);
(3) putting the T-NPFs prepared in the step (2) into the GO aqueous solution obtained in the step (1) for soaking, then drying, repeating the soaking and drying steps for multiple times, and obtaining poly (trimethylene carbonate)/graphene oxide coaxial coated fibers (GO-NPFs);
(4) and (3) treating the GO-NPFs prepared in the step (3) in a reducing agent, and then cleaning and drying to obtain the polypropylene hydrocarbon/reduced graphene oxide coaxially-coated high-conductivity fibers (rGO-NPFs).
2. The production method according to claim 1, wherein the Graphene Oxide (GO) in the step (1) is produced by oxidation of graphite by a modified Hummers method, the graphite being flake graphite, natural graphite or expanded graphite, the graphite flake having a diameter of 50nm to 3 μm; the pressure of the high-pressure homogenizer is 120 torr, and the dispersion time is 30 min.
3. The method of claim 1, wherein the concentration of the aqueous GO solution in step (1) is 0.1mg/ml to 10 mg/ml.
4. The method for preparing the polypropylene fiber fabric according to claim 1, wherein the cleaned waste non-woven polypropylene fabrics (W-NPFs) in the step (2) are obtained by sterilizing, cleaning and drying recycled W-NPFs in a 75% ethanol aqueous solution.
5. The preparation method according to claim 1, wherein the swelling agent in the step (2) is a mixture of ethyl acetate and water in a volume ratio of 1:1, and the treatment time is 36 h.
6. The process according to claim 1, wherein the surfactant in the step (2) is triton, and the amount of the surfactant is 0.5 wt% based on the swelling agent solution.
7. The method according to claim 1, wherein the number of the repeating of the soaking and drying in the step (4) is 1 to 16.
8. The preparation method according to claim 1, wherein the reducing agent in step (4) is thiourea dioxide solution or sodium borohydride solution, and the mass concentration of the reducing agent is 0.5%.
9. The polypropylene/reduced graphene oxide coaxial-coated high-conductivity fiber prepared by the preparation method of any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210162915.7A CN114395915B (en) | 2022-02-22 | 2022-02-22 | Polypropylene/reduced graphene oxide coaxial coated high-conductivity fiber and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210162915.7A CN114395915B (en) | 2022-02-22 | 2022-02-22 | Polypropylene/reduced graphene oxide coaxial coated high-conductivity fiber and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114395915A true CN114395915A (en) | 2022-04-26 |
| CN114395915B CN114395915B (en) | 2023-04-25 |
Family
ID=81235141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210162915.7A Active CN114395915B (en) | 2022-02-22 | 2022-02-22 | Polypropylene/reduced graphene oxide coaxial coated high-conductivity fiber and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114395915B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115074998A (en) * | 2022-07-21 | 2022-09-20 | 武汉汉烯科技有限公司 | High-conductivity electroplated metal fiber pretreated by graphene and preparation method thereof |
| CN115569966A (en) * | 2022-11-03 | 2023-01-06 | 山东金利特新材料有限责任公司 | Recycling method of waste filter element |
| CN116716726A (en) * | 2023-08-03 | 2023-09-08 | 武汉理工大学三亚科教创新园 | Polylactic acid/reduced graphene oxide coaxial coated conductive fiber and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101373049B1 (en) * | 2012-11-20 | 2014-03-17 | 한국과학기술연구원 | Reduced graphene oxide coated filament and method for fabricating the same |
| CN105951427A (en) * | 2016-05-27 | 2016-09-21 | 深圳市微纳集成电路与***应用研究院 | Graphene/fiber fabric preparation method, graphene/fiber fabric and sensor |
| CN109403033A (en) * | 2018-11-28 | 2019-03-01 | 天津工业大学 | A kind of functionalization non-woven cloth, preparation method and its usage loading graphene |
| CN109750493A (en) * | 2019-01-18 | 2019-05-14 | 中国航发北京航空材料研究院 | A kind of preparation method of graphene electromagnetic shielding composite material |
-
2022
- 2022-02-22 CN CN202210162915.7A patent/CN114395915B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101373049B1 (en) * | 2012-11-20 | 2014-03-17 | 한국과학기술연구원 | Reduced graphene oxide coated filament and method for fabricating the same |
| CN105951427A (en) * | 2016-05-27 | 2016-09-21 | 深圳市微纳集成电路与***应用研究院 | Graphene/fiber fabric preparation method, graphene/fiber fabric and sensor |
| CN109403033A (en) * | 2018-11-28 | 2019-03-01 | 天津工业大学 | A kind of functionalization non-woven cloth, preparation method and its usage loading graphene |
| CN109750493A (en) * | 2019-01-18 | 2019-05-14 | 中国航发北京航空材料研究院 | A kind of preparation method of graphene electromagnetic shielding composite material |
Non-Patent Citations (1)
| Title |
|---|
| 高小媛等: "石墨烯改性聚丙烯无纺布膜的制备研究", 《应用化工》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115074998A (en) * | 2022-07-21 | 2022-09-20 | 武汉汉烯科技有限公司 | High-conductivity electroplated metal fiber pretreated by graphene and preparation method thereof |
| CN115569966A (en) * | 2022-11-03 | 2023-01-06 | 山东金利特新材料有限责任公司 | Recycling method of waste filter element |
| CN116716726A (en) * | 2023-08-03 | 2023-09-08 | 武汉理工大学三亚科教创新园 | Polylactic acid/reduced graphene oxide coaxial coated conductive fiber and application thereof |
| CN116716726B (en) * | 2023-08-03 | 2023-10-24 | 武汉理工大学三亚科教创新园 | Polylactic acid/reduced graphene oxide coaxial coated conductive fiber and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114395915B (en) | 2023-04-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114395915A (en) | Polypropylene/reduced graphene oxide coaxial-coated high-conductivity fiber and preparation method thereof | |
| CN102936357B (en) | Antistatic agent made from silver nanowire and functional carbon nano tube (CNT) and preparation method | |
| CN102120891A (en) | Thermoplastic resin composition with EMI shielding properties and EMI shielding product prepared thereby | |
| Ali et al. | Comparative performance of copper and silver coated stretchable fabrics | |
| CN106011809A (en) | Method for preparing composite material with surface coated with silver through catechol-polyamine | |
| Wang et al. | Preparation of multi-functional fabric via silver/reduced graphene oxide coating with poly (diallyldimethylammonium chloride) modification | |
| CN106497048A (en) | A kind of preparation method of anisotropic conductive macromolecule laminated film | |
| CN103966644A (en) | Preparation method for graphene/macromolecule emulsion composite film material | |
| KR100652065B1 (en) | A method for producing a conductive cellulose film and the same manufactured by the same | |
| Mu et al. | Preparation of electrically conductive polyimide/silver composite fibers via in-situ surface treatment | |
| CN114775267A (en) | Electromagnetic shielding non-woven fabric and preparation method thereof | |
| CN112210088A (en) | Conductive hydrogel and preparation method and application thereof | |
| Pavithran et al. | Copper coating on coir fibres | |
| Zhang et al. | Fabrication of acanthosphere-like SiO2@ Ag with designed angular tip silver shape for construction of superhydrophobic-electromagnetic shielding surface by imitating lotus leaf structure | |
| Wei et al. | Carbon Quantum Dot/Chitosan‐Derived Hydrogels with Photo‐stress‐pH Multiresponsiveness for Wearable Sensors | |
| JP2018154921A (en) | Composite planar body and method for producing the same, and member having the same formed thereon | |
| CN112679772A (en) | Flexible conductive composite material for intelligent wearing and preparation method | |
| CN108717944A (en) | Conductive film and preparation method thereof and display device | |
| KR20240037197A (en) | Method for producing type II unmodified cellulose microfibers, type II unmodified cellulose microfibers, and molded articles thereof | |
| CN113737223B (en) | Preparation method of rod-like silver powder with flaky laminated structure on surface | |
| CN112615105B (en) | Preparation method for battery porous film, battery diaphragm and battery | |
| CN115181388B (en) | Stretchable electromagnetic shielding elastic material and preparation method thereof | |
| CN117247700A (en) | Anti-mechanical-abrasion conductive ink based on liquid metal particles and preparation method thereof | |
| CN210129521U (en) | Stretchable elastic resistive random access memory | |
| CN106833084A (en) | The preparation method and application of one-dimensional baseball shape attapulgite/polyaniline composite material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |