CN107663276A - A kind of nano-particle high molecular polymer composite electret film, its preparation method and the friction nanometer power generator containing the film - Google Patents
A kind of nano-particle high molecular polymer composite electret film, its preparation method and the friction nanometer power generator containing the film Download PDFInfo
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- CN107663276A CN107663276A CN201610615951.9A CN201610615951A CN107663276A CN 107663276 A CN107663276 A CN 107663276A CN 201610615951 A CN201610615951 A CN 201610615951A CN 107663276 A CN107663276 A CN 107663276A
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0831—Gold
Abstract
The invention discloses a kind of nano-particle high molecular polymer composite electret film, its preparation method and friction nanometer power generator containing the film.Preparation in accordance with the present invention obtains nano-particle high molecular polymer composite electret film by raw material preparation, dispersed, film forming and heat treatment step.According to the friction nanometer power generator of the present invention containing with good grounds nano-particle high molecular polymer composite electret film of the invention.
Description
Technical field
The present invention relates to electret film field, more particularly to a kind of nano particle-high molecular polymer composite electret
Film, its preparation method and the friction nanometer power generator containing the film.
Background technology
High molecular polymer (HMPs) electret has excellent electret performance and reliable chemical stability, is not easy
Reacted with strong acid, highly basic and strong oxidizer, it is also very stable for common solvent.At present, the surface shape of commercial HMPs films
State is mostly araneose microcellular structure, has certain water resistance, but does not possess moistureproof damp proof super hydrophobic functional, water logging
Or the electret performance under wet environment significantly reduces.Further, since existing film processing conditions limitation, the thickness of commercial film lead to
It is only a small amount of for 10~20um between and price is partially expensive often in the range of 30~100um, and it is less than 10um almost purchase not
Arrive.
As what friction electricity and piezoelectric device were explored deepens continuously, the hydrophobicitys of existing HMPs electrets, specification and
Electret performance can not meet the renewal requirements at the higher level proposed.Friction nanometer power generator and self-driven senser element generate electricity to improve
Performance, electrode can be made up of the electret film being adhered on aluminium or copper foil, and transfer charge can be greatly improved after corona charging
Quantity, it is more obvious with the reduction effect of thickness；But HMPs electret films directly bond relatively tired with metal under normal circumstances
Difficulty, to increase adhesive force therebetween, generally require and increase painting adhesion layer between metal and HMPs, or pass through the vacuum of complexity
Equipment is directly deposited or sputtered layer of metal conductive layer on HMPs films, and the former influences the performance of generator and senser element,
The latter is then unfavorable for Industry Promotion.
Though the current research having both at home and abroad by adulterating optimization electret performance and its preparation technology, is directed to nanometer
The research that the compound HMPs of particle (NPs) improves electret film performance there is no relevant report, and its preparation method and application are more without can
The mature technology of reference.
The content of the invention
The invention provides a kind of nano particle-high molecular polymer composite electret film and preparation method thereof, solves
The problem of electret film hydrophobic performance difference causes electret performance to reduce in the prior art；Present invention also offers one kind to contain
The friction nanometer power generator of the nano particle-high molecular polymer composite electret film, hence it is evident that improve the work of generator
Performance.
According to an aspect of the present invention, there is provided a kind of system of nano particle-high molecular polymer composite electret film
Preparation Method, it is characterised in that comprise the following steps：
Raw material preparation process：Prepare nanoparticle dispersion liquid and high molecular polymer dispersion liquid；
Dispersed step：The nanoparticle dispersion liquid and high molecular polymer dispersion liquid are matched according to constant weight
Mixing, it is then dispersed compound, obtain nano particle-high molecular polymer composite dispersion liquid；
Film formation step：By the nano particle-high molecular polymer composite dispersion liquid in surface treated substrate base
Film forming on piece, obtain the test specimen of film forming；
Heat treatment step：Test specimen is incubated 30~90min at a temperature of 100~390 DEG C, is subsequently cooled to room temperature.
Alternatively, preparation in accordance with the present invention, nanoparticle dispersion liquid and the high molecular polymer dispersion liquid are pressed
According to 1~30%：70~99% weight proportion mixing.
Alternatively, preparation in accordance with the present invention, the nano-particle are metal, semiconductor, graphene, the nanometer of carbon
Particle.
Alternatively, preparation in accordance with the present invention, the size of the nano-particle is 1~200nm.
Alternatively, preparation in accordance with the present invention, the high molecular polymer are polytetrafluoroethylene (PTFE), soluble poly tetrafluoro
Ethene, fluorinated ethylene propylene, polypropylene, polyethylene, Kynoar, polytrifluorochloroethylene, makrolon, polyester.
Alternatively, preparation in accordance with the present invention, the solid content of the nanoparticle dispersion liquid>5%wt, polyphosphazene polymer
The solid content of compound dispersion liquid>30%wt.
Alternatively, preparation in accordance with the present invention, in the dispersed step, dispersed compound operation
For：After mixed nanoparticle dispersion liquid and high molecular polymer dispersion liquid at room temperature 10~60min of magnetic agitation,
10~60min of ULTRASONIC COMPLEX under the conditions of temperature is 30~45 DEG C, power is 60~100W.
Alternatively, preparation in accordance with the present invention, the surface treated substrate base is by following steps
Obtain：Cleaned, at passivation by acetone oil removing grease removal, deionized water cleaning, phosphate solution phosphatization, deionized water successively
Reason, the surface treatment process of low temperature drying.
Alternatively, preparation in accordance with the present invention, the substrate base are sheet metal.
Alternatively, preparation in accordance with the present invention, in the film formation step, film forming is carried out using spin-coating film technique.
Alternatively, preparation in accordance with the present invention, also include before the heat treatment step, baking step：By the examination
Part removes solvent, 10~60min of curing process through 60~120 DEG C of drying and processings.
According to another aspect of the present invention, there is provided the nanoparticle that a kind of preparation in accordance with the present invention is prepared
Son-high molecular polymer composite electret film.
According to another aspect of the present invention, there is provided a kind of friction nanometer power generator, containing with good grounds nanoparticle of the invention
Son-high molecular polymer composite electret film.
Alternatively, according to the friction nanometer power generator of the present invention, the friction nanometer power generator is by following steps group
Dress：
Under conditions of room temperature and relative humidity RH are 40~60%, by corona polarizing device to carrying after heat treatment
The substrate base of nano particle-high molecular polymer composite electret film carries out constant pressure corona charging；Wherein, the substrate base
Piece uses sheet metal；
Using the sheet metal with nano particle-high molecular polymer composite electret film after corona charging as rubbing
Wipe an electrode of nano generator, the friction nanometer power generator with another to electrode assembling into contact-separate type.
Alternatively, according to the friction nanometer power generator of the present invention, in the constant pressure corona charging, filling for high voltage power supply is connected
Electric tip alignment nano particle-high molecular polymer composite electret film, the metal covering of non-cover film are connected to high-tension electricity
Another electrode in source, wherein the spacing of charging needle point and film be 10~50mm, pin pressure is-(3~6KV), the charging interval for 1~
10min。
Beneficial effects of the present invention are as follows：
(1) after HMPs and NPs are dispersed, can on surface treated sheet metal direct formation of film at surface, and can realize
NPs contents and NPs-HMPs composite electret film thicknesses are precisely controllable between 2~10um；
(2) microcellular structure that existing HMPs thin film processing techniques are formed is essentially eliminated, NPs-HMPs composite electrets are thin
Film surface is uniform, smooth and possess moistureproof damp proof super hydrophobic functional, has the good transparency concurrently；
(3) preparation technology of NPs-HMPs composite electrets film and equipment are simple；
(4) in terms of Application Example, connect being assembled into according to the composite electret film of the present invention after corona charging
The friction nanometer power generator (TENG) of tactile-separate type, to its open-circuit voltage, short circuit current, transfer charge amount and job stability
It is tested, test result is substantially better than existing commercial HMPs films；And NPs-HMPs composite electrets film through water logging or
Rinse, still possess higher electret performance after drying, TENG power generation performance, which has no, to be remarkably decreased.
Brief description of the drawings
Fig. 1 is the preparation method schematic flow sheet of the nano particle-high molecular polymer composite electret film of the present invention；
Fig. 2 is the preparation process of NPs-HMPs composite dispersion liquids in preparation method of the invention；
Fig. 3 is the film-forming technology process of NPs-HMPs composite electret films in preparation method of the invention；
Fig. 4 is NPs-HMPs composite electret film corona polarization process processes in preparation method of the invention；And
Fig. 5 is friction nanometer power generator assembling and the test content of the present invention.
Embodiment
Embodiment is only the description of the invention, without forming the limitation to present invention, below in conjunction with
Specific embodiment is further described and described to the present invention.
According to an aspect of the present invention, there is provided a kind of system of nano particle-high molecular polymer composite electret film
Preparation Method, preparation flow comprise the following steps referring to Fig. 1：
S1, raw material preparation process：Prepare nanoparticle dispersion liquid and high molecular polymer dispersion liquid；
S2, dispersed step：Nanoparticle dispersion liquid and high molecular polymer dispersion liquid are matched according to constant weight
Mixing, it is then dispersed compound, obtain nano particle-high molecular polymer composite dispersion liquid；Preferably, nano-particle disperses
Liquid and high molecular polymer dispersion liquid are according to 1~30%：70~99% weight proportion mixing.
S3, film formation step：By nano particle-high molecular polymer composite dispersion liquid in surface treated substrate base
Upper film forming, obtain the test specimen of film forming；Substrate base can be conventional any substrate, such as silicon chip, glass, sheet metal etc.；
Baking step：By test specimen through 60~120 DEG C of drying and processings, solvent is removed, then 10~60min of curing process；
S4, heat treatment step：Test specimen after curing process is incubated 30~90min at a temperature of 100~390 DEG C, so
After be cooled to room temperature.
Wherein, baking step is not required step, can also be dried at room temperature for being solidified.
Wherein, above-mentioned nanoparticle dispersion liquid and high molecular polymer dispersion liquid refers to nano-particle and high molecular polymer
Dispersion liquid in water.Preferably, the solid content of nanoparticle dispersion liquid>5%wt, the solid content of high molecular polymer dispersion liquid
>30%wt.
According to the preparation method of one embodiment of the present invention, nano-particle is that metal, semiconductor, graphene, carbon etc. are more
The nano particle of kind material.In the present invention, the nano-particle using single kind can be selected, a variety of nanometers can also be selected
Mix particles are added.The size range of nano-particle is 1~200nm.
According to the preparation method of one embodiment of the present invention, high molecular polymer is deposited after can using polarization with electric charge
Store up the organic molecule material of performance, such as polytetrafluoroethylene (PTFE) (PTFE), soluble poly tetrafluoroethene (PFA), perfluoroethylene allyl
Alkene (FEP), polypropylene (PP), polyethylene (PE), Kynoar (PVDF), polytrifluorochloroethylene (PCTFE), makrolon,
Polyester (PETP) etc..
According to the preparation method of one embodiment of the present invention, nano-particle is disperseed by magnetic agitation, ultrasonic technique
Liquid and the progress of high molecular polymer dispersion liquid are dispersed, and concrete operations are：By mixed nanoparticle dispersion liquid and high score
Sub- polymer dispersion liquid is at room temperature after 10~60min of magnetic agitation, temperature be 30~45 DEG C, power be 60~100W conditions
10~60min of lower ULTRASONIC COMPLEX, stands 5~30min, and deaeration is stand-by.
According to the preparation method of one embodiment of the present invention, the substrate base used is sheet metal.At surface
The sheet metal of reason obtains by following steps：By the sheet metal that thickness is 0.2~1mm be processed into the length of side be 10~
80mm square is clear then in turn through acetone oil removing grease removal, deionized water cleaning, phosphate solution phosphatization, deionized water
Wash, the surface treatment process of Passivation Treatment, low temperature drying.Then stayed using the sheet metal after handling as NPs-HMPs is compound
The substrate of polar body film, directly in its surface filming.Wherein, the metal used is the cheap conductive metallic materials such as aluminium or copper.
Preparation in accordance with the present invention, spin-coating film technique direct formation of film at surface on sheet metal can be used, can also
Select the method for other liquid film forming to carry out film forming, such as can use the methods of dipping and form film.In one kind of the present invention
In embodiment, the spin-coating film technique of use carries out film forming.Specifically, spin-coating film technique comprises the following steps：Will be through table
Absorption is on spin-coating equipment after the sheet metal of face processing fully infiltrates in NPs-HMPs composite dispersion liquids；In room temperature condition
Under, NPs-HMPs composite dispersion liquids are added dropwise in sheet metal center；First 300~800rpm/min the slow-speed of revolution 3~10s of spin coating,
20~60s of the high rotating speed spin coatings of 1200~3000rpm/min again.Three drop glue, extension and whiz operation stages are have passed through successively, are obtained
To the test specimen of spin-coating film.
Preparation in accordance with the present invention, in above-mentioned baking step, test specimen will be obtained and be placed on electric boiling plate, can added
One layer of aluminium foil, the sheet metal court of non-cover film are covered between hot plate and test specimen by NPs-HMPs composite electrets film upward
Lower carry out drying and processing.
Preparation in accordance with the present invention, in above-mentioned heat treatment step, it will can dry, the test specimen after curing process is put into
In high-temperature blast drying oven, 100~390 DEG C of predetermined heat treatment temperature is warming up to 5~20 DEG C/min and is heat-treated, insulation knot
Cool to room temperature after beam with the furnace.By the heat treatment process of crystalline film, suitably selected according to the heat endurance of sheet metal substrate
Select and vacuumize or inert gas shielding.
According to another aspect of the present invention, there is provided the nanoparticle that a kind of preparation in accordance with the present invention is prepared
Son-high molecular polymer composite electret film.
The preparation method of the present invention is dispersed by magnetic agitation, ultrasonic technique using NPs and HMPs dispersion liquids as raw material
After obtain NPs-HMPs composite dispersion liquids；Film forming substrate is used as using surface treated sheet metal；Spin-coated, drying, heat
The technique of processing, make NPs-HMPs composite dispersion liquids direct formation of film at surface on sheet metal, and surface is smooth, continuous uniform, NPs contains
Amount and 2~10um of thickness in the range of precisely it is controllable, the composite electret adhesive force being prepared is good, electret performance and dredge
It is water-based to be substantially improved, have the good transparency concurrently.Thinking of the present invention is novel, and process route is reasonable, NPs-HMPs composite electrets
Film not only possesses the existing feature of electret film, it is substantially improved in terms of electret performance, waterproof and moistureproof, and can be with
Direct formation of film at surface on sheet metal is realized, thickness is controllable, and film adhesive force meets requirement.
In accordance with a further aspect of the present invention, there is provided a kind of friction nanometer power generator, it includes the nanometer according to the present invention
Particle-high molecular polymer composite electret film.Wherein, nano particle-high molecular polymer composite electret film is through electricity
An electrode after dizzy charging as friction nanometer power generator.
Specifically, friction nanometer power generator is assembled by following steps：Room temperature and relative humidity RH be 40~
Under conditions of 60%, by corona polarizing device to the substrate base with NPs-HMPs composite electret films after heat treatment
Carry out constant pressure corona charging；Wherein, substrate base uses sheet metal；The compound electrets of NPs-HMPs will be carried after corona charging
An electrode of the sheet metal of body thin film as friction nanometer power generator, with another to electrode assembling into contacting-separate
The friction nanometer power generator of formula.Wherein, another electrode uses and the metal foil with NPs-HMPs composite electret films
Piece specification identical sheet metal, the thin slice of the cheap conductive metallic material such as aluminium or copper can be used.
More specifically, in constant pressure corona charging, the charging tip alignment NPs-HMPs composite electrets of high voltage power supply are connected
Film, the metal covering of non-cover film are connected to another electrode of high voltage power supply, wherein the spacing of charging needle point and film for 10~
50mm, pin pressure is-(3~6KV), and the charging interval is 1~10min, and charging face is the whole square area of sheet metal.
Open-circuit voltage, short circuit current, transfer charge amount and the stability of friction nanometer power generator according to the present invention are entered
Go test, be as a result substantially better than same specification commercialization HMPs films；And NPs-HMPs composite electrets film through water logging or flushing,
Still possesses higher electret performance after drying, TENG power generation performances, which have no, to be remarkably decreased.
It in summary it can be seen, according to the NPs-HMPs composite electrets film of the present invention, its preparation method and friction nanometer
The optional factor of generator is more, different embodiments can be combined into using the claim of the present invention, below with specific
Embodiment illustrates.
What the nano-particle of the present embodiment was selected is golden nanometer particle, and what high molecular polymer was selected is polytetrafluoroethylene (PTFE).
Dispersed golden nanometer particle-polytetrafluoroethylene (PTFE) (Au-PTFE) composite dispersion liquid is prepared according to proportioning, after surface treated
Aluminum slice (Al) on direct spin-coating film, it is desirable to Au-PTFE composite electret film surfaces are smooth, continuous uniform, thickness 4
~6um, electret performance greatly improves after corona charging, possesses super-hydrophobicity, and Au-PTFE laminated films and aluminum slice substrate are attached
Put forth effort to disclosure satisfy that requirement, the present embodiment is described in further details below in conjunction with technological process shown in accompanying drawing 2-5：
Implementation steps
(1) raw material prepares：As shown in Figure 2, solid content is prepared>30%wt PTFE dispersion liquids and solid content>5%wt's
Golden (Au) nanoparticle dispersion liquid is some.
(2) it is dispersed：As shown in Figure 3, by PTFE dispersion liquids and golden Au nanoparticle dispersion liquids according to 95%:5%
Proportioning mixing, after room temperature magnetic agitation 20min, the ULTRASONIC COMPLEX 30min under conditions of temperature is 35 DEG C, power is 80W, obtain
To Au-PTFE composite dispersion liquids.The composite dispersion liquid is stood into 10min, then deaeration is stand-by.
(3) substrate prepares：As shown in Figure 3, the Al thin slices that thickness is 0.2mm are processed into the pros that the length of side is 50mm
Shape, successively by acetone oil removing grease removal, deionized water cleaning, phosphate solution phosphatization, deionized water cleaning, Passivation Treatment, low
After the surface treatment process of temperature drying, as the substrate of Au-PTFE composite electret films, directly the Al sheet surfaces into
Film.
(4) spin-coating film：As shown in Figure 3, after surface treated Al thin slices fully infiltrate in Au-PTFE dispersion liquids
Absorption is on spin-coating equipment, and at ambient temperature, first Au-PTFE composite dispersion liquids are added dropwise in sheet metal center, by
The high rotating speed spin coating 30s of 500rpm slow-speed of revolution spin coatings 6s, 1500rpm, successively by dripping three glue, extension and whiz operation stages,
Obtain the test specimen of spin-coating film.
(5) drying and processing：As shown in Figure 3, above-mentioned test specimen is placed on electric boiling plate immediately, between heating plate and test specimen
One layer of aluminium foil is covered, by the one side of Au-PTFE composite electret films upward, the one of non-cover film is face-down, through 90 DEG C of bakings
Dry-cure, it is quick to remove solvent and curing process, processing time 30min.
(6) it is heat-treated：As shown in Figure 3, the test specimen after drying and processing is put into high-temperature blast drying oven and crystallized
Film forming is heat-treated, and is warming up to 380 DEG C of predetermined heat treatment temperature with 10 DEG C/min, room temperature is cooled to the furnace after being incubated 60min.
(7) corona charging：As shown in Figure 4, by the corona polarizing device from group, it is in room temperature and relative humidity RH
Constant pressure corona charging is carried out to the above-mentioned test specimen through Overheating Treatment under conditions of 50%, connects the charging tip alignment of high voltage power supply
Au-PTFE composite electret films, the Al thin slices of non-cover film are connected to another electrode of high voltage power supply, and wherein charging needle is with answering
The spacing for closing electret film is 40mm, and pin pressure is -5KV, charging interval 4min, and charging face is the whole square region of test specimen
Domain；Finally give the Au-PTFE composite electret films after corona charging.
(8) friction nanometer power generator assembles：As shown in Figure 5, by the Au-PTFE composite electret films after corona charging
Test specimen is integrally used as friction nanometer power generator (TENG) one of electrode, prepares the Al thin slice conducts of a same size in addition
To electrode, the TENG of contact-separate type is assembled into.Continuously after 2000 cycles of work, the TENG shows higher stabilization
Property, its open-circuit voltage, short circuit current, the average value of transfer charge amount are 198V, 28.2uA and 121nC, with using existing business
Compared with the generator of HMPs films, various performance parameters are greatly improved.And Au-PTFE laminated films are through water logging or punching
Wash, dry up after electret performance remain able to maintain more than 80%, TENG power generation performances and have no and be remarkably decreased.
In summary, the nanoparticle with extremely strong electret performance, strong-hydrophobicity can be made in preparation in accordance with the present invention
Son-high molecular polymer composite electret film, and can on sheet metal direct formation of film at surface, the thickness of film is controllable, can reach
To 2-10um thickness, well below the thickness of existing commercial electret film.According to the composite electret film of the present invention
It is with a wide range of applications in friction nanometer power generator and self-driven sensing etc..
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (15)
1. a kind of preparation method of nano particle-high molecular polymer composite electret film, it is characterised in that including following step
Suddenly：
Raw material preparation process：Prepare nanoparticle dispersion liquid and high molecular polymer dispersion liquid；
Dispersed step：The nanoparticle dispersion liquid and high molecular polymer dispersion liquid are matched according to constant weight and mixed
Close, it is then dispersed compound, obtain nano particle-high molecular polymer composite dispersion liquid；
Film formation step：By the nano particle-high molecular polymer composite dispersion liquid on surface treated substrate base
Film forming, obtain the test specimen of film forming；
Heat treatment step：Test specimen is incubated 30~90min at a temperature of 100~390 DEG C, is subsequently cooled to room temperature.
2. preparation method as claimed in claim 1, it is characterised in that the nanoparticle dispersion liquid and high molecular polymer point
Dispersion liquid is according to 1~30%：70~99% weight proportion mixing.
3. preparation method as claimed in claim 1 or 2, it is characterised in that the nano-particle is metal, semiconductor, graphite
The nano-particle of alkene, carbon.
4. the preparation method as described in claim any one of 1-3, it is characterised in that the size of the nano-particle be 1~
200nm。
5. the preparation method as described in claim any one of 1-4, it is characterised in that the high molecular polymer is polytetrafluoroethyl-ne
Alkene, soluble poly tetrafluoroethene, fluorinated ethylene propylene, polypropylene, polyethylene, Kynoar, polytrifluorochloroethylene, poly- carbon
Acid esters, polyester.
6. the preparation method as described in claim any one of 1-5, it is characterised in that the solid content of the nanoparticle dispersion liquid
>5%wt, the solid content of high molecular polymer dispersion liquid>30%wt.
7. the preparation method as described in claim any one of 1-6, it is characterised in that in the dispersed step, uniformly
Disperseing compound operation is：By mixed nanoparticle dispersion liquid and high molecular polymer dispersion liquid magnetic agitation at room temperature
After 10~60min, 10~60min of ULTRASONIC COMPLEX under the conditions of temperature is 30~45 DEG C, power is 60~100W.
8. the preparation method as described in claim any one of 1-7, it is characterised in that the surface treated substrate base
Piece, obtained by following steps：Successively by acetone oil removing grease removal, deionized water cleaning, phosphate solution phosphatization, deionization
Water cleaning, Passivation Treatment, the surface treatment process of low temperature drying.
9. preparation method as claimed in claim 8, it is characterised in that the substrate base is sheet metal.
10. the preparation method as described in claim any one of 1-9, it is characterised in that in the film formation step, using spin coating into
Membrane process carries out film forming.
11. the preparation method as described in claim any one of 1-10, it is characterised in that also include before the heat treatment step,
Baking step：The test specimen is removed into solvent, 10~60min of curing process through 60~120 DEG C of drying and processings.
A kind of 12. nano particle-high molecular polymer that preparation method as described in claim any one of 1-11 is prepared
Composite electret film.
13. a kind of friction nanometer power generator, it is characterised in that the friction nanometer power generator includes as claimed in claim 12
Nano particle-high molecular polymer composite electret film.
14. friction nanometer power generator as claimed in claim 13, it is characterised in that the friction nanometer power generator is by such as
Lower step assembling：
Under conditions of room temperature and relative humidity RH are 40~60%, by corona polarizing device to carrying nanometer after heat treatment
The substrate base of particle-high molecular polymer composite electret film carries out constant pressure corona charging；Wherein, the substrate base is adopted
Use sheet metal；
The sheet metal with nano particle-high molecular polymer composite electret film after corona charging is received as friction
One electrode of rice generator, the friction nanometer power generator with another to electrode assembling into contact-separate type.
15. friction nanometer power generator as claimed in claim 14, it is characterised in that in the constant pressure corona charging, connection is high
The charging tip alignment nano particle-high molecular polymer composite electret film of voltage source, the metal covering of non-cover film connect
Another electrode of high voltage power supply is connected to, wherein the spacing of charging needle point and film is 10~50mm, pin pressure is-(3~6KV), is charged
Time is 1~10min.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109194184A (en) * | 2018-09-27 | 2019-01-11 | 北京科技大学 | A kind of preparation method of high-energy utilization rate friction nanometer power generator |
| CN111245285A (en) * | 2020-03-27 | 2020-06-05 | 北京纳米能源与***研究所 | Friction generator, manufacturing method thereof and power generation method |
| CN111327224A (en) * | 2018-12-17 | 2020-06-23 | 北京纳米能源与***研究所 | Waterproof electret material, electret method and friction nano-generator |
| CN112606509A (en) * | 2020-12-16 | 2021-04-06 | 昆山微电子技术研究院 | Self-polarized composite electret-piezoelectric film, preparation method thereof and piezoelectric film sensor |
| CN112886854A (en) * | 2021-01-29 | 2021-06-01 | 电子科技大学 | Method for improving output performance of friction nano generator, film and preparation method |
| CN115678360A (en) * | 2022-12-29 | 2023-02-03 | 杭州兆华电子股份有限公司 | Preparation method of composite electret and composite electret obtained by preparation method |
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| CN115678360A (en) * | 2022-12-29 | 2023-02-03 | 杭州兆华电子股份有限公司 | Preparation method of composite electret and composite electret obtained by preparation method |
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