CN109687756B - Friction nano-generator based on biological membrane material and suitable for being used in high-humidity environment and preparation method and application thereof - Google Patents
Friction nano-generator based on biological membrane material and suitable for being used in high-humidity environment and preparation method and application thereof Download PDFInfo
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Abstract
The invention provides a friction nano generator based on a biological membrane material and suitable for being used in a high-humidity environment, and a preparation method and application thereof, and belongs to the technical field of friction nano generators. The friction nano generator takes a high polymer with the surface modified by an oxygen group, a fluorine group or a nitrogen group as a friction layer, the groups on the surface of the friction layer can form hydrogen bonds with water molecules in the environment under high humidity, the electron cloud density around the groups is averaged, the energy of the friction layer is reduced, so that the water molecules participate in friction electrification, the positive electricity of the electrons is removed when the water molecules are volatilized in the friction electrification process, and the friction layer is also a material with the positive electricity of the electricity loss belt in the friction process, so that the water molecules and the electricity loss belt generate a superposition effect, the positive electricity of the friction layer-water molecule is enhanced, the output is increased, the moisture resistance effect is achieved, the high electricity output can be kept under the high humidity environment, and the friction nano generator is applied to the fields of environment dissipated energy collection, humidity early warning or humidity sensing. And the preparation method is simple and easy to operate.
Description
Technical Field
The invention relates to the technical field of friction nano generators, in particular to a friction nano generator based on a biological membrane material and suitable for being used in a high-humidity environment, and a preparation method and application thereof.
Background
In recent years, due to the large amount of development of conventional non-renewable energy sources such as coal, oil, natural gas, etc., energy crisis has been caused on a global scale, wherein the crisis of electric energy is particularly serious. In order to alleviate the energy crisis, the development of new energy is imminent. The new energy refers to various energy forms other than the traditional energy, including solar energy, geothermal energy, wind energy, ocean energy, biomass energy, nuclear fusion energy and the like. With the limited nature of conventional energy and the increasing prominence of environmental issues, new energy characterized by environmental protection and reproducibility is gaining more and more attention from various countries, wherein research and application of friction nano-generators are receiving attention in recent years.
A triboelectric nanogenerator (TENG) is a micro-generator that can convert extremely minute mechanical energy into electrical energy by means of a charge pump effect of the potential at the point of friction. The generator has great application potential in the fields of electronic products, environmental monitoring, medical equipment manufacturing and the like. Since the first friction nano-generator appeared, people are receiving more and more attention due to the advantages of wide sources, low cost, reliable output and the like.
However, since the friction nanogenerator is easily affected by the ambient humidity to lower the output, its application is limited. According to experimental data, after the humidity of the experimental environment is increased from 10% RH to 90% RH, the output current and the output voltage of the solid-solid friction nano generator made of the conventional polymer material are reduced by 5-7 times, and the application of the solid-solid friction nano generator is seriously influenced by the reduction of the output. For example, the friction nano generator used for collecting the swing friction energy of the arm of the human body when the human body runs is almost not used when the human body sweats greatly, because sweat is attached to the friction layer of the friction nano generator to reduce the output; the windmill friction nano generator for collecting wind energy cannot be used in foggy days or rainy days unless the generator is packaged because the environment humidity is too high and the output is too low; in rainy seasons in the south, the environmental humidity is generally increased, and the solid-solid friction nano generator cannot be used; solid-solid friction nano-generator type sensors used in factories to detect gas, temperature, humidity, etc. have a reduced sensitivity under high humidity, so that the humidity must be strictly controlled in factory workshops, increasing production costs.
In the prior art, the friction nano generator is packaged to reduce the influence of environmental humidity, but the method has the following defects: the process is complicated, and the container for packaging must be made of transparent, water-resistant and high-strength materials, such as organic glass, hard plastic and the like; for some special application occasions, the volume of the friction generator is required to be small by some sensing devices, and the volume of the whole friction nanometer generator is inevitably increased after packaging, so that the requirements are difficult to meet; after packaging, the detection sensitivity is reduced, and due to the existence of a cause such as frictional heat, the generated heat affects the output of the frictional nanogenerator, resulting in a reduction in the detection sensitivity.
Therefore, it is a challenging task to provide a high performance wet friction resistant nanogenerator.
Disclosure of Invention
In view of the above, the present invention aims to provide a friction nano-generator based on a biological membrane material suitable for use in a high humidity environment, and a preparation method and an application thereof. The friction nano generator provided by the invention has an excellent high-humidity resistance effect, and can be widely applied to the fields of environment dissipated energy collection, humidity early warning or humidity sensing.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a friction nano generator based on a biological membrane material and suitable for being used in a high-humidity environment, which comprises a friction layer electrode and a counter-friction layer electrode, wherein the friction layer electrode comprises a first metal electrode layer and a friction layer which are arranged in a stacked mode; the counter-friction layer electrode comprises a second metal electrode layer and a counter-friction layer which are stacked; the first metal electrode layer and the second metal electrode layer are respectively connected with a lead; the friction layer of the friction layer electrode is arranged opposite to the counter-friction layer of the counter-friction layer electrode; the friction layer is made of a high polymer with the surface modified by an oxygen group, a fluorine group or a nitrogen group; the material of the opposite friction layer is a high polymer material; the high polymer comprises starch, cellulose, sodium alginate, hydroxypropyl methylcellulose, carboxymethyl cellulose, dextrin, pullulan, alginate jelly or gelatin protein.
Preferably, the polymer material includes polyvinylidene fluoride, polytetrafluoroethylene, polycarbonate, polystyrene, polyvinyl chloride, or polyimide.
Preferably, the thickness of the friction layer and the counter-friction layer is independently 0.1-2.0 mm.
Preferably, the first metal electrode layer and the second metal electrode layer are made of copper, platinum, aluminum, iron, conductive glass or graphene.
Preferably, the thickness of the first metal electrode layer and the second metal electrode layer is independently 0.1 mm.
Preferably, the material of the conducting wire comprises copper.
The invention also provides a preparation method of the friction nano generator based on the biomembrane material and suitable for being used in the high-humidity environment, which comprises the following steps:
preparing a high polymer with the membrane layer surface modified by an oxygen group, a fluorine group or a nitrogen group, namely a friction layer; attaching a first metal electrode layer on one side of the friction layer, and leading out a lead to obtain a friction layer electrode;
dissolving a high polymer material and coating to obtain a counter-friction layer; and attaching a second metal electrode layer to one side of the opposite friction layer, and leading out a lead to obtain the opposite friction layer electrode.
Preferably, the method for preparing the friction layer comprises the following steps:
forming a film on the high polymer to obtain a high polymer film layer; and grafting an oxygen group, a fluorine group or a nitrogen group on one surface of the high polymer film layer to obtain the friction layer.
Preferably, the method for preparing the friction layer comprises the following steps: and grafting an oxygen group, a fluorine group or a nitrogen group on the high polymer, and forming a film to obtain the friction layer.
The invention also provides the application of the friction nano generator based on the biological membrane material and suitable for being used in the high-humidity environment or the friction nano generator based on the biological membrane material and suitable for being used in the high-humidity environment, which is obtained by the preparation method, in the fields of environment dissipated energy collection, humidity early warning or humidity sensing.
The invention provides a friction nano generator based on a biological membrane material and suitable for being used in a high-humidity environment, which comprises a friction layer electrode and a counter-friction layer electrode, wherein the friction layer electrode comprises a first metal electrode layer and a friction layer which are arranged in a stacked mode; the counter-friction layer electrode comprises a second metal electrode layer and a counter-friction layer which are stacked; the first metal electrode layer and the second metal electrode layer are respectively connected with a lead; the friction layer of the friction layer electrode is arranged opposite to the counter-friction layer of the counter-friction layer electrode; the friction layer is made of a high polymer with the surface modified by an oxygen group, a fluorine group or a nitrogen group; the material of the opposite friction layer is a high polymer material; the high polymer comprises starch, cellulose, sodium alginate, hydroxypropyl methylcellulose, carboxymethyl cellulose, dextrin, pullulan, alginate jelly or gelatin protein.
The friction nano generator takes the high polymer with the surface modified by oxygen groups, fluorine groups or nitrogen groups as a friction layer, the groups on the surface of the friction layer can form hydrogen bonds with water molecules in the environment under high humidity, the formation of the hydrogen bonds enables the electron cloud density around the groups to be averaged, the energy of the friction layer is reduced, so that the water molecules participate in frictional electrification, and the water molecules are easy to lose electrons and carry positive electricity in the frictional electrification process and are also materials capable of losing electrons and carrying positive electricity in the frictional electrification process, so that the friction layer and the water molecules have a superposition effect, the overall positive electricity of the friction layer and the water molecules is enhanced, the output is increased, and the effect of high humidity impedance is achieved. Moreover, the higher the environmental humidity is, the higher the output of the friction nano generator is, the higher the energy conversion rate is, so that the friction nano generator can normally work in a high humidity environment. In addition, the friction layer of the friction nano generator is a biological membrane material, the raw material source is wide, the friction layer can be seen anywhere in nature, the price is low (3-5 ten thousand starch per ton, 6-7 ten thousand cellulose per ton and 5-7 ten thousand gelatin protein per ton), the environment is not damaged, the friction nano generator can be naturally degraded after being buried in soil for one year, and the friction nano generator is a green, environment-friendly and renewable new material.
Any energy dissipated in the form of solid friction in the natural environment can be collected by the friction nano power generation, for example, the friction energy of the arm and the body when the human body moves; friction energy between the sole and the ground when walking or running; the wind blows the friction energy when the windmill rotates, and the like. Meanwhile, the friction nano generator is particularly suitable for environments with high humidity, such as foggy days, rainy days, southern areas with high humidity, factory workshops and the like, and the higher the environmental humidity is, the higher the sensitivity of the friction nano generator is, and the more efficient the friction energy in the environment can be collected.
Furthermore, the invention uses renewable high polymers (including starch, cellulose, protein and polysaccharide) as a friction layer and high polymer materials (including polytetrafluoroethylene, polyvinylidene fluoride and the like) which are easy to obtain electrons as a counter-friction layer to assemble the friction nano-generator, thereby realizing the collection of dissipated energy under high humidity.
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FIG. 1 is a schematic structural diagram of a triboelectric nanogenerator provided by the invention; in the figure, 1 is a counter-friction layer, 2 is a friction layer, 3 is a second metal electrode layer, 4 is a first metal electrode layer, and 5 is a lead.
Detailed Description
The friction nano-generator based on the biological membrane material, which is suitable for being used in a high humidity environment, provided by the present invention is described in detail below with reference to fig. 1.
The invention provides a friction nano generator based on a biological membrane material and suitable for being used in a high-humidity environment, which comprises a friction layer electrode and a counter-friction layer electrode, wherein the friction layer electrode comprises a first metal electrode layer and a friction layer which are arranged in a stacked mode; the counter-friction layer electrode comprises a second metal electrode layer and a counter-friction layer which are stacked; the first metal electrode layer and the second metal electrode layer are respectively connected with a lead; the friction layer of the friction layer electrode is arranged opposite to the counter-friction layer of the counter-friction layer electrode; the friction layer is made of a high polymer with the surface modified by an oxygen group, a fluorine group or a nitrogen group; the material of the opposite friction layer is a high polymer material; the high polymer comprises starch, cellulose, sodium alginate, hydroxypropyl methylcellulose, carboxymethyl cellulose, dextrin, pullulan, alginate jelly or gelatin protein.
The friction nano generator based on the biological membrane material and suitable for being used in a high-humidity environment comprises a friction layer electrode and a counter-friction layer electrode.
In the present invention, the friction layer electrode includes a first metal electrode layer 4 and a friction layer 2 which are stacked. In the invention, the material of the first metal electrode layer preferably includes copper, platinum, aluminum, iron, conductive glass or graphene; the thickness of the first metal electrode layer is preferably 0.1 mm. In the present invention, the first metal electrode is connected to a lead 5; the material of the lead 5 preferably comprises copper.
In the invention, the friction layer is made of a high polymer with the surface modified by oxygen groups, fluorine groups or nitrogen groups. In the present invention, the high polymer includes starch, cellulose, sodium alginate, hydroxypropylmethylcellulose, carboxymethylcellulose, dextrin, pullulan, alginate jelly or gelatin protein, and is preferably starch or cellulose. In the invention, the thickness of the friction layer is preferably 0.1-2.0 mm.
The friction layer of the invention comprises starch, cellulose, sodium alginate, hydroxypropyl methylcellulose, carboxymethyl cellulose, dextrin, pullulan, seaweed glue film or gelatin protein, and has wide source of raw materials, low price and easy degradation. Meanwhile, the biological membrane material is a friction electron-losing material, namely a material with electropositivity in the friction charging process; in addition, the surface of the friction layer is provided with an oxygen group, a fluorine group or a nitrogen group, under a high-humidity environment, the groups on the surface of the friction layer can form hydrogen bonds with water molecules in the environment, the electron cloud density around the groups is averaged due to the formation of the hydrogen bonds, the energy of the friction layer is reduced, and therefore the water molecules participate in friction electrification, the electropositivity of the friction layer is increased, and the output is increased; moreover, the higher the ambient humidity, the higher the output of the friction nanogenerator, and the higher the energy conversion rate. In addition, the friction layer has more surface groups of materials such as starch and the like, and the method is simple when other groups are modified.
In the present invention, the counter-friction layer electrode includes a second metal electrode layer 3 and a counter-friction layer 1 which are stacked. In the present invention, the material of the second metal electrode layer preferably includes copper, platinum, aluminum, iron, conductive glass, or graphene; the thickness of the second metal electrode layer is preferably 0.1 mm. In the present invention, the second metal electrode is connected to a lead 5; the material of the lead 5 preferably comprises copper.
In the invention, the material of the opposite friction layer is a high molecular material; the polymer material is preferably polyvinylidene fluoride (PVDF), Polytetrafluoroethylene (PTFE), Polycarbonate (PC), Polystyrene (PS), polyvinyl chloride (PVC), Polyimide (PI), and more preferably polytetrafluoroethylene. In the present invention, the thickness of the counter-friction layer is preferably 0.1 mm.
The material of the friction layer is a high molecular material which is easy to obtain electrons, namely a friction electronegativity material, so that the output maximization in the working process of the friction nano generator is ensured, for example, when the material of the friction layer is preferably polytetrafluoroethylene, the mechanical property of the friction layer is strong, the flexibility is good, the electron obtaining capacity in the friction process is strong, the hydrophobicity is good, and the influence of free water molecules on the output of the friction nano generator can be avoided.
In the present invention, the friction layer of the friction layer electrode is disposed opposite to the counter-friction layer of the counter-friction layer electrode.
The invention also provides a preparation method of the friction nano generator based on the biomembrane material and suitable for being used in the high-humidity environment, which comprises the following steps:
preparing a high polymer with the membrane layer surface modified by an oxygen group, a fluorine group or a nitrogen group, namely a friction layer; attaching a first metal electrode layer on one side of the friction layer, and leading out a lead to obtain a friction layer electrode;
dissolving a high polymer material and coating to obtain a counter-friction layer; and attaching a second metal electrode layer to one side of the opposite friction layer, and leading out a lead to obtain the opposite friction layer electrode.
The invention prepares the high polymer with the membrane layer surface modified by oxygen group, fluorine group or nitrogen group, namely the friction layer; and attaching a first metal electrode layer on one side of the friction layer, and leading out a lead to obtain the friction layer electrode.
In the present invention, the method for preparing the friction layer preferably includes: forming a film on the high polymer to obtain a high polymer film layer; and grafting an oxygen group, a fluorine group or a nitrogen group on one surface of the high polymer film layer to obtain the friction layer. The present invention does not specifically limit the manner of film formation of the polymer, as long as a polymer film layer can be obtained.
In the present invention, the manner of grafting an oxygen group, a fluorine group or a nitrogen group is preferably plasma treatment; the agent used for grafting the oxygen group is preferably a hydroxyl-containing compound; the agent used for grafting the fluorine group preferably includes perfluorooctyltrichlorosilane; the agent used for grafting the nitrogen group is preferably dopamine. The parameters of the oxygen group, the fluorine group or the nitrogen group grafted by the plasma treatment method are not particularly limited. In the invention, when the material of the friction layer is prepared by firstly forming a film and then grafting a group, preferably, grafting a group on one surface of the high polymer film layer, and attaching one surface of the high polymer film layer, which is not grafted with the group, to the first electrode layer when the high polymer film layer is subsequently attached to the first electrode layer.
In the present invention, the method for preparing the friction layer preferably includes the steps of: and grafting an oxygen group, a fluorine group or a nitrogen group on the high polymer, and forming a film to obtain the friction layer. The method for grafting the oxygen group, the fluorine group or the nitrogen group on the high polymer is not particularly limited, and the grafting method known by the technicians in the field can be adopted; in an embodiment of the present invention, the method of preparing the friction layer preferably includes; carrying out hydroxypropylation treatment on the starch granules, and pasting the starch granules into a film to obtain a high polymer film layer grafted with oxygen groups, namely a friction layer.
The method for attaching the first metal electrode layer to one side of the friction layer is not particularly limited in the present invention, as long as the first metal electrode layer can be attached to the friction layer, specifically, the first metal electrode layer is attached by using glue.
The invention dissolves the high molecular material and then coats a film to obtain a counter-friction layer; and attaching a second metal electrode layer to one side of the opposite friction layer, and leading out a lead to obtain the opposite friction layer electrode.
The solvent for dissolving the polymer material is not particularly limited in the present invention, as long as the polymer material can be dissolved. In the present invention, the coating means preferably includes spin coating. The method for attaching the second metal electrode layer to one side of the opposite friction layer is not particularly limited in the present invention, as long as the second metal electrode layer can be attached to the opposite friction layer, specifically, the second metal electrode layer is attached by glue.
The invention also provides the application of the friction nano generator based on the biological membrane material and suitable for being used in the high-humidity environment or the friction nano generator based on the biological membrane material and suitable for being used in the high-humidity environment, which is prepared by the preparation method, in the fields of environment dissipated energy collection, humidity early warning or humidity sensing.
The friction nano generator based on the biological membrane material and suitable for being used in a high-humidity environment has excellent moisture resistance, and can be used as an environment dissipated energy collector, a humidity early warning device or a humidity sensor.
The friction nano-generator based on biological membrane material suitable for use in high humidity environment and the preparation method and application thereof provided by the present invention are described in detail below with reference to the examples, but they should not be construed as limiting the scope of the present invention.
Example 1
A method for preparing a friction nano-generator based on a biological membrane material suitable for use in a high humidity environment, comprising the steps of:
(1) carrying out hydroxypropylation treatment on starch granules, pasting the starch granules into a film with the thickness of 0.5mm, cutting the starch granules into the size of 4cm multiplied by 4cm, attaching copper foil on the back of the starch granules and leading out a lead to obtain a friction electrode;
(2) selecting PTFE as a counter-friction layer, cutting into a size of 4cm multiplied by 4cm in the same way, wherein the thickness is 0.5mm, attaching copper foil on the back of the counter-friction layer, and leading out a copper lead to obtain a counter-friction layer electrode;
in the environment with the humidity of 95%, the friction layer electrode and the counter friction layer electrode are collided by an external force of 60N, the friction layer and the counter friction layer are in contact separation, the output current reaches 18 muA, the output voltage reaches 380V, and after 40000 cycles, the output is kept stable without any attenuation. The friction nano generator of the embodiment can be used as an energy collector under high humidity, and stable, efficient and continuous energy output is realized.
Example 2
A method for preparing a friction nano-generator based on a biological membrane material suitable for use in a high humidity environment, comprising the steps of:
(1) taking a cellulose membrane with the thickness of 0.2mm, carrying out fluorination treatment on one surface of the cellulose membrane by using perfluorooctyl trichlorosilane to obtain a cellulose membrane with a surface modified by fluorine groups, namely a friction layer, cutting the friction layer into the size of 4cm multiplied by 4cm, attaching an aluminum foil electrode on the back and leading out a copper lead to obtain a friction layer electrode;
(2) cutting polytetrafluoroethylene with the thickness of 0.5mm into a size of 4cm multiplied by 4cm to obtain a para-friction layer; attaching an aluminum foil on the back of the counter-friction layer and leading out a copper wire to obtain a counter-friction layer electrode;
and continuously introducing water vapor into the closed box to continuously raise the humidity to 100%, enabling the friction nano generator to contact and separate under the action of 60N external force, and continuously increasing the output current and the output voltage until the maximum value is 20 muA and then stabilizing. The friction nano generator of the embodiment can be used as an energy collecting device under high humidity or a sensing device under high humidity, and realizes humidity sensing under high humidity environment.
Example 3
A method for preparing a friction nano-generator based on a biological membrane material suitable for use in a high humidity environment, comprising the steps of:
(1) taking a gelatin protein film with the thickness of 1mm, modifying the surface of one side of the gelatin protein film in plasma by using dopamine to obtain the gelatin protein film with the surface modified by nitrogen groups, namely a friction layer, cutting the friction layer into the size of 4cm multiplied by 4cm, pasting an aluminum foil electrode on the back, leading out a copper wire, and obtaining a friction layer electrode;
(2) cutting a polycarbonate film with the thickness of 1.0mm into a size of 4cm multiplied by 4cm to obtain a counter-friction layer; pasting an aluminum foil electrode on the back of the counter-friction layer and leading out a copper wire to obtain a counter-friction layer electrode;
the friction nano generator is placed in a closed box, 40 green LED small bulbs are connected in series, then water vapor is continuously introduced into the closed box (the flow of the water vapor is 500mL/min), and a friction layer is contacted with and separated from a counter-friction layer by an external force of 60N. Within tens of seconds of just introducing the water vapor, 40 LED lamps can not be lighted; and after the water vapor is continuously introduced for 1min, the LED lamp starts to flicker and emits weak light, the water vapor is continuously introduced, and the brightness of the LED lamp is increased until the maximum brightness is reached. The friction nanometer generator of the embodiment can be used as a humidity early warning device and used in places needing strict humidity control, such as certain production workshops and laboratories.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A friction nano-generator based on biological membrane materials and suitable for being used in a high-humidity environment comprises a friction layer electrode and a counter-friction layer electrode, wherein the friction layer electrode comprises a first metal electrode layer and a friction layer which are arranged in a stacked mode; the counter-friction layer electrode comprises a second metal electrode layer and a counter-friction layer which are stacked; the first metal electrode layer and the second metal electrode layer are respectively connected with a lead; the friction layer of the friction layer electrode is arranged opposite to the counter-friction layer of the counter-friction layer electrode; the friction layer is made of a high polymer with the surface modified by an oxygen group, a fluorine group or a nitrogen group; the material of the opposite friction layer is a high polymer material; the high polymer comprises starch, cellulose, sodium alginate, hydroxypropyl methylcellulose, carboxymethyl cellulose, dextrin, pullulan, alginate jelly or gelatin protein.
2. The triboelectric nanogenerator of claim 1, wherein the polymeric material is polyvinylidene fluoride, polytetrafluoroethylene, polycarbonate, polystyrene, polyvinyl chloride, or polyimide.
3. The triboelectric nanogenerator according to claim 1, wherein the thickness of the tribolayer and the counter-tribolayer is independently 0.1-2.0 mm.
4. The triboelectric nanogenerator of claim 1, wherein the first metal electrode layer and the second metal electrode layer are independently copper, platinum, aluminum, iron, conductive glass, or graphene.
5. The triboelectric nanogenerator according to claim 1 or 4, wherein the thickness of the first metal electrode layer and the second metal electrode layer is independently 0.1 mm.
6. The triboelectric nanogenerator of claim 1, wherein the material of the wire comprises copper.
7. The method for preparing a triboelectric nanogenerator according to any one of claims 1 to 6, comprising the steps of:
preparing a high polymer with the membrane layer surface modified by an oxygen group, a fluorine group or a nitrogen group, namely a friction layer; attaching a first metal electrode layer on one side of the friction layer, and leading out a lead to obtain a friction layer electrode;
dissolving a high polymer material and coating to obtain a counter-friction layer; and attaching a second metal electrode layer to one side of the opposite friction layer, and leading out a lead to obtain the opposite friction layer electrode.
8. The method for preparing a friction layer according to claim 7, comprising the steps of:
forming a film on the high polymer to obtain a high polymer film layer; and grafting an oxygen group, a fluorine group or a nitrogen group on one surface of the high polymer film layer to obtain the friction layer.
9. The method for preparing a friction layer according to claim 7, comprising the steps of: and grafting an oxygen group, a fluorine group or a nitrogen group on the high polymer, and forming a film to obtain the friction layer.
10. The friction nano generator based on the biological membrane material and suitable for being used in a high-humidity environment as claimed in any one of claims 1 to 6 or the friction nano generator based on the biological membrane material and suitable for being used in a high-humidity environment as obtained by the preparation method as claimed in any one of claims 7 to 9 is applied to the fields of environment dissipated energy collection, humidity early warning or humidity sensing.
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| CN110855178A (en) * | 2019-10-31 | 2020-02-28 | 浙江大学 | Application of pullulan polysaccharide in friction nano generator |
| CN111564986A (en) * | 2020-06-05 | 2020-08-21 | 西南大学 | Penicillin tablet-based friction nano generator and manufacturing method and application thereof |
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| CN114257118A (en) * | 2020-09-23 | 2022-03-29 | 深圳先进技术研究院 | Fully degradable friction nano-generator and preparation method and application thereof |
| CN112857602B (en) * | 2021-01-11 | 2022-05-24 | 中国科学院兰州化学物理研究所 | Application of temperature-sensitive polymer in temperature sensor, temperature sensor and application method of temperature sensor |
| CN113054866B (en) * | 2021-04-09 | 2022-07-26 | 华南理工大学 | Application of modified lignin nanocellulose film in friction nanogenerator |
| CN113234623B (en) * | 2021-04-30 | 2023-09-05 | 福建农林大学 | Electroactive strain whole-cell moisture power generation device and application thereof |
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