CN115021608A - Preparation method of high-performance sisal hemp nano cellulose membrane based friction nano generator - Google Patents
Preparation method of high-performance sisal hemp nano cellulose membrane based friction nano generator Download PDFInfo
- Publication number
- CN115021608A CN115021608A CN202210658719.9A CN202210658719A CN115021608A CN 115021608 A CN115021608 A CN 115021608A CN 202210658719 A CN202210658719 A CN 202210658719A CN 115021608 A CN115021608 A CN 115021608A
- Authority
- CN
- China
- Prior art keywords
- sisal
- cellulose
- nano
- friction
- reaction
- 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.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/04—Friction generators
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B11/00—Preparation of cellulose ethers
- C08B11/02—Alkyl or cycloalkyl ethers
- C08B11/04—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals
- C08B11/10—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals substituted with acid radicals
- C08B11/12—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals substituted with acid radicals substituted with carboxylic radicals, e.g. carboxymethylcellulose [CMC]
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
- C08B15/02—Oxycellulose; Hydrocellulose; Cellulosehydrate, e.g. microcrystalline cellulose
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2301/08—Cellulose derivatives
- C08J2301/26—Cellulose ethers
- C08J2301/28—Alkyl ethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2401/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2401/02—Cellulose; Modified cellulose
- C08J2401/04—Oxycellulose; Hydrocellulose
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Manufacturing & Machinery (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
A preparation method of a high-performance sisal hemp nano cellulose membrane based friction nano generator belongs to the field of novel nano materials, energy collection and self-powered sensing, and comprises the following steps: (1) pretreating sisal fibers through a hydrothermal reaction; (2) carrying out alkalization and etherification on sisal cellulose to obtain sisal carboxymethyl cellulose; (3) bleaching and hydrolyzing sisal cellulose to obtain sisal microcrystalline cellulose; (4) adding sisal carboxymethyl cellulose into sisal microcrystalline cellulose to prepare a sisal nano cellulose membrane; (5) the sisal hemp nano cellulose membrane and the friction electronegative material are assembled to prepare the friction nano generator. The sisal hemp nano cellulose membrane prepared by using the sisal hemp fibers has wide raw material source and low manufacturing cost, and is assembled into a friction nano generator by using the sisal hemp nano cellulose membrane as a friction electric anode material, so that higher electric output performance is obtained, and a new idea is provided for self-energy supply of future wearable electronic equipment.
Description
Technical Field
The invention particularly relates to a preparation method of a high-performance sisal hemp nano cellulose membrane based friction nano generator, belonging to the field of novel nano materials, energy collection and self-powered sensing.
Background
A Triboelectric Nanogenerator (TENG) is a highly efficient energy device, and by collecting energy around its environment, such as human body movement, wind flow, running water, vibration and any other small mechanical movement, the Triboelectric plates of the TENG are brought into contact with and separated from each other, thereby generating an electrical signal (altptekin)
A pre-assessment of past research on the topic of environmental-friendly electronics[J].Journal of Cleaner Production,2021,129:305-314；Peng Bai,Guang Zhu,Zonghong Lin,et al.Integrated Multilayered Triboelectric Nanogenerator for Harvesting Biomechanical Energy from Human Motions[J].ACS Nano,2021,7(4):3713-3719；Guang Zhu,Zonghong Lin,Qingshen Jing,et al.Toward large-scale energy harvesting by a nanoparticle-enhanced triboelectric nanogenerator[J]Nano Letters,2021,13(2): 847-53). TENG has been recognized as a powerful power source since 2012 and has a wide range of potential applications due to its outstanding characteristics of sustainability, high output performance, and unlimited material selection (Zhonglin Wang, Triboelectric Nanogenagers as New energy technologies for Self-Power systems and as Active Mechanical and Chemical Sensors [ J. Teng. C. Teng]ACS Nano,2019,7(11): 9533-. Furthermore, its unique self-powered system can ensure a continuous and reliable power supply for many devices (wearable devices, sensors, smartphones, medical devices, etc.). Therefore, many scholars have great interest in collecting ocean energy, rain energy, wind energy, self-driven sensors and the likeA great deal of research.
TENG works on the principle of using the potential difference generated by the contact separation of two electrodes of different materials to generate electrical energy. There are many materials to choose from, such as metals (Cu, Al, Ag, etc.) and polymeric materials (polyimide, teflon, rubber, etc.), polymeric materials (nylon, silk, cotton, etc.) and polymeric materials, polymeric materials and inorganic non-metallic materials (SiO2, Al2O3, etc.). However, in order to improve the electrical properties of TENG, equipment, process steps, and special materials for manufacturing a complex surface structure are expensive, resulting in a high cost of TENG, and in order to promote the practical use of TENG, it is urgent to reduce the cost while ensuring high performance. The cellulose serving as a natural polymer material has the advantages of low cost, biocompatibility, environmental friendliness, degradability and the like, and is widely applied to the fields of nano-medicines, nano-biomaterials, nano-composites, new energy and the like (Chencatarun, preparation of sisal hemp nano-cellulose/graphene/polyaniline composite and electrochemical performance research [ D ] Guilin; Guilin university of Guilin science, 2017). Sisal fibers are obtained from the leaves of sisal crops as a natural organic fiber, the main chemical components of sisal fibers are cellulose (50-65%), hemicellulose (12-20%), lignin (8-10%) and small amounts of pectin, waxes and water-soluble substances (Furlan, Daiana M; Morgado, et al. simple cellulose and magnetic nanoparticles: formation and properties of magnetic fibrous [ J ]. Journal of Materials Research and Technology,2019,8(2): 2170-9.). The sisal cellulose microcrystal is rod-shaped nanofiber formed by hydrolyzing sisal cellulose to a limit polymerization degree through acid, but the sisal cellulose microcrystal is short and small in crystal grain and poor in caking property and cannot form a film. Sisal carboxymethyl cellulose is a transparent sol with viscosity, and can be used as adhesive, thickener, etc. When proper sisal carboxymethyl cellulose is added into the sisal microcrystalline cellulose, the sisal nano cellulose membrane with a net structure, higher charge density and good mechanical property can be formed.
As an energy collecting device, the commercial application of TENG depends greatly on its electrical output performance, i.e. voltage, current, and charge amount, and it has become a hot research focus to improve the triboelectric charge density of the material surface by means of material modification, surface modification, and the like. According to the invention, based on the surface characteristics of the sisal hemp nano cellulose membrane, the sisal hemp fiber is firstly prepared into the sisal hemp nano cellulose membrane, and the sisal hemp nano cellulose membrane and the triboelectric negative material are assembled into the TENG in a matching way, wherein the TENG shows better electric output performance.
Disclosure of Invention
The invention aims to provide a method for preparing sisal nano cellulose membrane-based TENG by using sisal fibers as raw materials, which obtains excellent electrical output performance.
In order to achieve the purpose, the preparation method comprises the following specific steps:
(1) repeatedly kneading, cleaning and drying the sisal hemp raw material, removing scraps and silt on the surface, and cutting the sisal hemp raw material into small sections of 1-3 cm.
(2) And (2) respectively putting 4-6g of sisal fibers obtained in the step (1) into a plurality of 100mL high-temperature high-pressure reaction kettles, respectively adding 70-80mL of NaOH solution with the concentration of 1-3mol/L, assembling the high-temperature reaction kettles, putting the high-temperature reaction kettles into an oven, heating to 160 ℃, and preserving heat for 12-16 h.
(3) And (3) after the reaction in the step (2) is finished, cooling to room temperature, filtering a reaction product, taking a filter residue part (sisal cellulose), repeatedly washing the sisal cellulose by using deionized water until the color of the filtrate is unchanged and the filtrate is neutral, drying the obtained sisal cellulose in a vacuum oven at 50-70 ℃ to constant weight, and crushing for later use.
(4) Weighing 6-8g of the crushed product obtained in the step (3) into a 1000mL beaker, adding 30-40g of NaOH solution with the mass fraction of 10-30 wt% and 300 mL of anhydrous ethanol, and stirring at room temperature for 30-60min to alkalize the product.
(5) And (4) after the reaction in the step (4) is finished, adding 3-4g of chloroacetic acid, stirring for 2.5-4h at 50-70 ℃, filtering the product after the reaction is finished, and repeatedly washing to be neutral.
(6) And (4) carrying out high-speed centrifugation on the mixed solution obtained in the step (5) to obtain a transparent jelly-like product, namely the sisal hemp carboxymethyl cellulose for later use.
(7) Weighing 9-15g of sisal cellulose reacted in the step (3) in a 500mL three-neck flask, adding 2.5-5g of sodium chlorite, 2-4mL of acetic acid and 500-700mL of deionized water into the three-neck flask, uniformly mixing the sodium chlorite, the acetic acid and the deionized water, and reacting at 60-80 ℃ for 3-4 h. Filtering and washing the obtained reaction product to be neutral, and drying the reaction product in a vacuum oven at the temperature of between 50 and 70 ℃ for later use.
(8) Weighing 8-12g of sisal cellulose treated in step (7), and mixing with 90-100mL (70 wt%) of H 2 SO 4 Mixing, pouring into a single-neck round-bottom flask, controlling the temperature to be 45 ℃, uniformly stirring for 1h, and adding excessive deionized water after the reaction is finished.
(9) And (4) repeatedly centrifuging and washing the product obtained in the step (8) to be neutral, and removing the supernatant to obtain the white sisal cellulose microcrystal with the diameter of 15-30nm and the length of 350-480nm for later use.
(10) In the sisal cellulose microcrystal which is the reaction product in the step (9), the ratio of the sisal cellulose microcrystal: sisal carboxymethyl cellulose is 1: 1-1: 4, adding the sisal hemp carboxymethyl cellulose which is a product obtained after the reaction in the step (6) into deionized water in a proportion, completely dispersing the sisal hemp carboxymethyl cellulose into the deionized water, performing suction filtration to form a film, and drying the film in a drying oven at the temperature of 40-80 ℃ for 2-8min to obtain the sisal hemp nano cellulose film.
(11) And (4) cutting the sisal hemp nano cellulose membrane prepared in the step (10) to a certain specification for later use. Attaching a double-sided adhesive tape on a supporting substrate, cutting electrode materials with the same size, attaching the electrode materials on the double-sided adhesive tape to serve as an electrode layer, and finally attaching a standby sisal hemp nano cellulose membrane to serve as a friction positive electrode to obtain a TENG positive electrode; on the other side (back side) of the support assembly, a lead is connected between the double-sided tape and the electrode layer to conduct a circuit. And (3) manufacturing a negative plate, repeating the steps, selecting common triboelectric negative materials as a friction negative electrode, and assembling the friction negative electrode and the friction negative electrode into the friction nano generator.
The triboelectric negative material is a high molecular polymer film, such as Polytetrafluoroethylene (PTFE), polyethylene terephthalate (PET), polyimide, polyvinyl chloride, polypropylene, polyethylene, polystyrene, polyvinylidene chloride, bisphenol polycarbonate, modacrylic, polyacrylonitrile, rubber (including all rubbers such as natural rubber and chloroprene rubber), polyisobutylene, and the like. The thickness of the nanofiber membrane is 0.08-0.16 mm.
The beneficial effects of the invention are:
the sisal hemp is used as a raw material, has the characteristics of wide source, environmental friendliness, degradability, good biocompatibility and the like, and provides a new idea for the source of the raw material of the wearable electronic device in the future. The method prepares sisal fiber into a sisal nano cellulose film for the first time, wherein the ratio of sisal cellulose microcrystal: the ratio of the sisal carboxymethyl cellulose is 1: 2, the obtained sisal hemp nano cellulose membrane has stable shape, stable property and good flexibility, and the surface appearance of the obtained sisal hemp nano cellulose membrane is observed by a scanning electron microscope, wherein the sisal hemp cellulose microcrystal is wrapped by sisal hemp carboxymethyl cellulose, the diameter of the sisal hemp cellulose microcrystal is about 21nm, the length of the sisal hemp cellulose microcrystal is 406nm, the sisal hemp cellulose microcrystal is combined with a triboelectric negative material to prepare TENG, the maximum short-circuit current can reach 6.0 muA, the maximum open-circuit voltage can reach 156V, and the maximum charge quantity can reach 83 nC.
Drawings
FIG. 1 is a graph of the short-circuit current versus time of the sisal-hemp-based nano-cellulose-film triboelectric nanogenerator in example 1.
FIG. 2 is a graph of open circuit voltage versus time for the sisal-based nano-cellulose-film triboelectric nanogenerator of example 1.
FIG. 3 is a graph of the charge amount of the sisal-based nano-cellulose-film triboelectric nanogenerator in example 1 as a function of time.
FIG. 4 is a scanning electron micrograph of the sisal nano-cellulose film in example 1.
Detailed Description
The invention is illustrated below by way of specific examples:
example 1:
(1) the sisal fiber raw material is repeatedly kneaded, cleaned and dried, surface scraps and silt are removed, and the sisal fiber raw material is cut into small sections of 2 cm.
(2) And (2) taking 5g of the sisal fibers obtained in the step (1), putting the sisal fibers into a 100mL high-temperature high-pressure reaction kettle, adding 70mL of 2.5mol/L NaOH solution, putting the high-temperature reaction kettle into an oven, heating to 160 ℃, and preserving heat for 14 h.
(3) And (3) after the reaction in the step (2) is finished, cooling to room temperature, filtering a reaction product, taking a filter residue part (sisal cellulose), repeatedly washing the sisal cellulose by using deionized water until the filtrate is neutral, and drying the obtained sisal cellulose in a vacuum oven at 60 ℃ for later use.
(4) Weighing 7g of the sisal cellulose dried in the step (3) in a 1000mL beaker, adding 35mL of 20 wt% NaOH solution and 350mL of absolute ethanol, and stirring at room temperature for 30min to alkalize the sisal cellulose.
(5) And (3) after the solution in the step (4) is reacted, adding 3.5g of chloroacetic acid, stirring for 3 hours at 70 ℃, filtering the product after the reaction is finished, adding deionized water for settling, pouring out the supernatant, continuously adding a large amount of deionized water, and repeatedly washing until the solution is neutral.
(6) And (4) centrifuging the mixed solution obtained in the step (5) at high speed for 10min under the condition of 12000rpm to obtain a transparent jelly-like product, namely sisal hemp carboxymethyl cellulose for later use.
(7) The sisal fiber raw material is repeatedly kneaded, cleaned and dried, surface scraps and silt are removed, and the sisal fiber raw material is cut into small sections of 2 cm.
(8) And (3) putting 5g of the sisal fibers pretreated in the step (7) into a 100mL high-temperature high-pressure reaction kettle, adding 70mL of 2.5mol/L NaOH solution, putting the high-temperature reaction kettle into an oven, heating to 160 ℃, and keeping the temperature for 14 h.
(9) And (5) after the reaction in the step (8) is finished, cooling to room temperature, filtering a reaction product, taking a filter residue part (sisal cellulose), repeatedly washing the sisal cellulose by using deionized water until the color of the filtrate is unchanged and the filtrate is neutral, and drying the obtained sisal fiber in a vacuum oven at 60 ℃ for later use.
(10) And (3) crushing the dried sisal fibers obtained in the step (9), weighing 10g of crushed sisal fibers, pouring into a 500mL three-neck flask, adding 3.5g of sodium chlorite, 3mL of acetic acid and 350mL of deionized water, uniformly mixing, and reacting for 3h at 75 ℃.
(11) And (2) filtering and washing the reaction product obtained in the step (10) to be neutral, and drying in a vacuum oven at 60 ℃ to obtain sisal cellulose microcrystals, wherein the diameter of the microcrystals is 21nm, and the length of the microcrystals is 406 nm.
(12) Weighing 10g of the sisal cellulose microcrystals obtained in step (11), and mixing with 90mL (70 wt%) of H 2 SO 4 Mixing, pouring into a round-bottom flask with single neck, and controllingThe temperature is controlled to be 45 ℃, the mixture is stirred for 1 hour at a constant speed, and excessive deionized water is added after the reaction is finished.
(13) And (3) centrifuging the product obtained after the reaction in the step (12) for 7min at 1000rpm, removing the supernatant, and repeating the operation until the product is washed to be neutral to obtain pure white pasty sisal hemp cellulose microcrystals for later use.
(14) And (3) reacting the sisal cellulose microcrystals obtained in the step (13) with the sisal carboxymethyl cellulose obtained in the step (8) according to the ratio of 1: 2, respectively adding deionized water, performing ultrasonic treatment for 5min to completely disperse the two, performing suction filtration to form a film, and drying in a drying oven at 60 ℃ for 5min to obtain a mixed sisal nanometer cellulose film with the thickness of 0.12 mm.
(15) Respectively cutting the sisal hemp nano cellulose membranes manufactured in the step (14) to 3 x 3cm specifications, using an acrylic plate as a TENG supporting matrix, sticking a 3 x 5cm polyimide double-sided tape at the middle position of the supporting matrix, attaching copper foils with the same size as an electrode layer on the polyimide, and finally sticking a standby sisal hemp nano cellulose membrane as a friction positive electrode to obtain a TENG positive plate; on the other surface (back surface) of the acrylic plate, a lead wire is connected between the polyimide and the copper foil to conduct a circuit. And (4) manufacturing a negative plate, repeating the steps, selecting a triboelectric negative material as a triboelectric negative electrode, and assembling the triboelectric negative electrode and the triboelectric negative electrode to obtain the friction nano-generator.
(16) The tribo-nanogenerator fabricated in step (15) was subjected to electrical property tests, and the sisal-based nano-cellulose-film-based tribo-nanogenerator had a short-circuit current of 6.0 μ a (as shown in fig. 1), an open-circuit voltage of 156V (as shown in fig. 2), and a charge amount of 83nC (as shown in fig. 3).
Claims (1)
1. A preparation method of a high-performance sisal hemp nano cellulose membrane based friction nano generator is mainly characterized in that the preparation method comprises the following steps:
(1) repeatedly kneading, cleaning and drying the sisal hemp raw material, removing debris and silt on the surface, and cutting the sisal hemp raw material into small sections of 1-5 cm;
(2) respectively putting 4-6g of sisal fibers obtained in the step (1) into a plurality of 100mL high-temperature high-pressure reaction kettles, respectively adding 70-80mL of NaOH solution with the concentration of 1-3mol/L, assembling the high-temperature reaction kettles, putting the high-temperature reaction kettles into an oven, heating to 160 ℃, and preserving heat for 12-16 h;
(3) after the reaction in the step (2) is finished, cooling to room temperature, filtering a reaction product, taking a filter residue part (sisal cellulose), repeatedly washing the sisal cellulose by using deionized water until the color of the filtrate is unchanged and the filtrate is neutral, drying the obtained sisal cellulose in a vacuum oven at 50-70 ℃ to constant weight, and crushing for later use;
(4) weighing 6-8g of the crushed product obtained in the step (3) in a 1000mL beaker, adding 30-40g of 10-30 wt% NaOH solution and 300 mL of 400mL of anhydrous ethanol, and stirring at room temperature for 30-60min to alkalize the mixture;
(5) after the reaction in the step (4) is finished, adding 3-4g of chloroacetic acid, stirring for 2.5-4h at 50-70 ℃, filtering the product after the reaction is finished, and repeatedly washing to be neutral;
(6) centrifuging the mixed solution obtained in the step (5) at a high speed to obtain a transparent jelly-like product, namely sisal hemp carboxymethyl cellulose for later use;
(7) weighing 8-15g of sisal cellulose reacted in the step (3) in a 500mL three-neck flask, adding 2.5-5g of sodium chlorite, 2-4mL of acetic acid and 500-700mL of deionized water into the three-neck flask, uniformly mixing the components, and reacting at 60-80 ℃ for 3-4 h; filtering and washing the obtained reaction product to be neutral, and drying the reaction product in a vacuum oven at the temperature of between 50 and 70 ℃ for later use;
(8) weighing 8-15g of sisal cellulose treated in the step (7), and mixing with 80-100mL (50-85 wt%) of H 2 SO 4 Mixing, pouring into a single-mouth round-bottom flask, controlling the temperature, stirring at a constant speed for 1h, and adding excessive deionized water after the reaction is finished;
(9) repeatedly centrifuging and washing the product obtained in the step (8) to be neutral, and removing supernatant to obtain white sisal cellulose microcrystals for later use;
(10) in the sisal cellulose microcrystal of the reaction product in the step (9), the ratio of the sisal cellulose microcrystal to the sisal cellulose microcrystal is as follows: sisal carboxymethyl cellulose is 1: 1-1: 4, adding the sisal hemp carboxymethyl cellulose which is a product obtained after the reaction in the step (6) in proportion, completely dispersing the sisal hemp carboxymethyl cellulose in deionized water, performing suction filtration to form a film, and drying the film for 2-8min in a drying oven at the temperature of 40-80 ℃ to obtain a sisal hemp nano cellulose film;
(11) cutting the sisal hemp nano cellulose membrane prepared in the step (10) to a certain specification for later use; pasting a double-sided adhesive tape on a supporting substrate, cutting conductive materials with the same size to be attached to the double-sided adhesive tape to serve as an electrode layer, and finally pasting a standby nanofiber membrane to serve as a friction positive electrode to obtain a TENG positive plate; connecting a lead between the double-sided tape and the electrode layer on the other surface (back surface) of the support base body to conduct a circuit; manufacturing a negative plate, repeating the steps, selecting a common triboelectric negative material as a friction negative electrode, and assembling the friction negative electrode and the friction negative electrode to obtain a friction nano-generator;
the microcrystal in the nanofiber membrane is the nanofiber with the diameter of 15-30nm and the length of 350-480 nm;
the thickness of the nanofiber membrane is 0.08-0.16 mm;
the triboelectric negative material is a high molecular polymer film, such as Polytetrafluoroethylene (PTFE), polyethylene terephthalate (PET), polyimide, polyvinyl chloride, polypropylene, polyethylene, polystyrene, polyvinylidene chloride, bisphenol polycarbonate, modacrylic, polyacrylonitrile, rubber, polyisobutylene, and the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210658719.9A CN115021608A (en) | 2022-06-12 | 2022-06-12 | Preparation method of high-performance sisal hemp nano cellulose membrane based friction nano generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210658719.9A CN115021608A (en) | 2022-06-12 | 2022-06-12 | Preparation method of high-performance sisal hemp nano cellulose membrane based friction nano generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115021608A true CN115021608A (en) | 2022-09-06 |
Family
ID=83074356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210658719.9A Pending CN115021608A (en) | 2022-06-12 | 2022-06-12 | Preparation method of high-performance sisal hemp nano cellulose membrane based friction nano generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115021608A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117024828A (en) * | 2023-08-26 | 2023-11-10 | 桂林理工大学 | Method for preparing triboelectric material by dynamic co-irradiation technology |
-
2022
- 2022-06-12 CN CN202210658719.9A patent/CN115021608A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117024828A (en) * | 2023-08-26 | 2023-11-10 | 桂林理工大学 | Method for preparing triboelectric material by dynamic co-irradiation technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhang et al. | Wood-cellulose-fiber-based functional materials for triboelectric nanogenerators | |
| Zhang et al. | Fabrication and applications of cellulose-based nanogenerators | |
| Zhao et al. | Cellulose‐based flexible functional materials for emerging intelligent electronics | |
| Shi et al. | Portable self-charging power system via integration of a flexible paper-based triboelectric nanogenerator and supercapacitor | |
| Li et al. | All-in-one cellulose based hybrid tribo/piezoelectric nanogenerator | |
| Jin et al. | Patternable Nanocellulose/Ti3C2T x Flexible Films with Tunable Photoresponsive and Electromagnetic Interference Shielding Performances | |
| Cai et al. | Temperature-invariant superelastic multifunctional MXene aerogels for high-performance photoresponsive supercapacitors and wearable strain sensors | |
| Alam et al. | An effective wind energy harvester of paper ash-mediated rapidly synthesized ZnO nanoparticle-interfaced electrospun PVDF fiber | |
| CN106910819B (en) | A kind of nano combined piezo-electric generator preparation method with stratiform stacking provisions suitable for wearable device | |
| CN113054866B (en) | Application of modified lignin nanocellulose film in friction nanogenerator | |
| CN106893116A (en) | A kind of preparation method of cellulose nano-fibrous biomass gel and aeroge | |
| Yang et al. | Nanocellulose-graphene composites: Preparation and applications in flexible electronics | |
| CN112908726B (en) | Preparation method of double-network full-hydrogel stretchable solid supercapacitor | |
| CN113817230A (en) | CNF-MXene-PEI high-strength high-conductivity material and preparation method and application thereof | |
| Teng et al. | Advances in cellulose-based composites for energy applications | |
| CN105504093A (en) | Method for preparing membrane electrode from chitin nano fiber/carbon nanotube composite | |
| CN112410927A (en) | Stretchable carbon nanotube/organic composite thermoelectric fiber and preparation method and application thereof | |
| CN115021608A (en) | Preparation method of high-performance sisal hemp nano cellulose membrane based friction nano generator | |
| Zong et al. | Flexible piezoelectric nanogenerator based on cellulose nanofibril/MXene composite aerogels for low-frequency energy harvesting | |
| Qiang et al. | Layer-by-layer self-assembled TEMPO-oxidized cellulose nanofiber/reduced graphene oxide/polypyrrole films for self-supporting flexible supercapacitor electrodes | |
| CN114702709A (en) | Flexible MXene protein composite membrane with electromagnetic shielding and pressure-sensitive characteristics, preparation method and application thereof | |
| CN109799012B (en) | Cellulose-based sandwich-like structure pressure sensor and preparation method thereof | |
| CN115295714A (en) | Flexible piezoelectric nanofiber net film and preparation method and application thereof | |
| Li et al. | Electrospun hydrolyzed collagen from tanned leather shavings for bio-triboelectric nanogenerators | |
| Mahalingam et al. | Review of bioresource-based conductive composites for portable flexible electronic devices |
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 |