CN106903831B - The preparation method of PDMS membrane, the PDMS membrane by this method preparation and its application - Google Patents
The preparation method of PDMS membrane, the PDMS membrane by this method preparation and its application Download PDFInfo
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- CN106903831B CN106903831B CN201510953122.7A CN201510953122A CN106903831B CN 106903831 B CN106903831 B CN 106903831B CN 201510953122 A CN201510953122 A CN 201510953122A CN 106903831 B CN106903831 B CN 106903831B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/12—Spreading-out the material on a substrate, e.g. on the surface of a liquid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2083/00—Use of polymers having silicon, with or without sulfur, nitrogen, oxygen, or carbon only, in the main chain, as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
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- Mechanical Engineering (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention provides a kind of preparation methods of PDMS membrane, comprising: adds curing agent in dimethyl silicone polymer, is uniformly mixing to obtain mixture；Into mixture, the electronegative micro-nano granules of doping surfaces obtain dimethyl silicone polymer slurry；Dimethyl silicone polymer slurry is coated in template, and is deaerated to film, then dries film；Film is immersed in alkaline solution or it is sprayed using alkaline solution, then cleaning, drying, to obtain PDMS membrane.The present invention also provides the PDMS membranes prepared by this method, and using the friction generator of the film.The method of the invention realizes the modifications of dimethyl silicone polymer, improve the negatively charged of film, to improve the electricity output performance using the friction generator of the PDMS membrane.
Description
Technical field
The present invention relates to thin polymer film fields, and in particular, to the PDMS membrane for friction generator
Preparation method, by this method preparation PDMS membrane and its application.
Background technique
There are a large amount of utilizable mechanical energy in people's lives environment and industrial production, from Michael's method in 1831
After drawing discovery electromagnetic induction phenomenon, induction generator becomes most important, widest generation mode, so far not yet
Other generation modes can therewith shoulder to shoulder.In recent years, the friction nanometer power generator of Wang Zhonglin academician research team invention provides one
The new method that kind is generated electricity using mechanical energy, principle are based on frictional electricity and electrostatic induction phenomenon, and micro-nano can not only be driven electric
Sub- device work, can also power to portable electronic device and household electrical appliance, collect induction generator and be not easy to obtain
Mechanical energy, such as sea wave energy, mechanical oscillation etc., it would be possible to as the power generation skill of equal importance with induction generator
Art.But present friction nanometer power generator output performance is also relatively low, limit friction nanometer power generator practical application value and
Application range.
Summary of the invention
The present invention defect low for friction generator output performance existing in the prior art, provides a kind of poly- diformazan
The preparation method of radical siloxane film, the PDMS membrane prepared by this method, and apply the dimethyl silicone polymer
The friction generator of film.
In a first aspect, this method includes following step the present invention provides a kind of preparation method of PDMS membrane
It is rapid:
(1) curing agent is added in dimethyl silicone polymer, is uniformly mixing to obtain mixture；
(2) the electronegative micro-nano granules of doping surfaces obtain polydimethylsiloxanes in the mixture obtained to step (1)
Alkane slurry；
(3) the dimethyl silicone polymer slurry that step (2) obtains is coated in template, and deaerated to film, then by film
Drying；
(4) film that step (3) obtains is immersed in alkaline solution or it is sprayed using alkaline solution, then clean,
It is dry, to obtain PDMS membrane.
Second aspect, the present invention provides a kind of PDMS membranes, are prepared using the preparation method of first aspect
It obtains.
The third aspect, the PDMS membrane being prepared the present invention provides the preparation method of first aspect or
Application of the PDMS membrane of second aspect in preparation friction generator.
Fourth aspect, the present invention provides a kind of friction generators, wherein the friction generator includes being stacked
First electrode layer, the first high polymer insulating layer and the second electrode lay；Alternatively, the friction generator includes that stacking is set
The first electrode layer set, the first high polymer insulating layer, the second high polymer insulating layer and the second electrode lay；Or
Person, the friction generator include the first electrode layer being stacked, the first high polymer insulating layer, intervening electrode layer,
Second high polymer insulating layer and the second electrode lay；Alternatively, the friction generator includes the first electrode being stacked
Layer, the first high polymer insulating layer, between two parties film layer, the second high polymer insulating layer and the second electrode lay；
Wherein, the first high polymer insulating layer, and/or, the second high polymer insulating layer, and/or, it is thin between two parties
Film layer is by the preparation method of the first aspect PDMS membrane being prepared or the polydimethylsiloxanes of second aspect
Alkane film is constituted.
The present invention is prepared in the method for PDMS membrane, in the mixture of dimethyl silicone polymer and curing agent
It joined the modified particles such as silica dioxide granule, nano silicon particles, be bonded to improve Si-O-Si in dimethyl silicone polymer
Then structure concentration is impregnated in alkaline solution or is sprayed using alkaline solution, realize polydimethylsiloxane--modified, improves poly- two
Methylsiloxane negatively charged, to improve the friction generator that the PDMS membrane and other friction materials are assembled into
Electricity output performance.
Detailed description of the invention
Fig. 1 is the flow chart of preparation method of the present invention.
Fig. 2 is a kind of structural schematic diagram of the friction generator of specific embodiment of the invention.
Fig. 3 is using the PDMS film (curve 1) of method preparation of the invention and filling for PDMS film (curve 2) for comparison
Electric performance test result.
Specific embodiment
The present invention is done in detail by following specific embodiments for the purpose, feature and effect for fully understanding the present invention
Describe in detail bright, but the present invention is not restricted to this.
The present invention provides a kind of preparation method of dimethyl silicone polymer (PDMS) film, the poly- diformazan prepared by this method
Radical siloxane film can be used for friction generator and micro-fluidic chip etc..Method of the invention is illustrated below with reference to Fig. 1.This
The method of invention includes the following steps:
(1) curing agent is added in dimethyl silicone polymer, is uniformly mixing to obtain mixture.Wherein, made in the present invention
Dimethyl silicone polymer commercially available can obtain, for example, the model of Dow corning company production is the production of Sylgard 184
Product.The curing agent (for example, vulcanizing agent) of conventional commercial is used equally in the present invention, for example, the type of Dow corning company production
It number is the product of Sylgard 184.The mass ratio of the dimethyl silicone polymer and the curing agent is 1:1-20:1, preferably
10:1。
(2) the electronegative micro-nano granules of doping surfaces obtain polydimethylsiloxanes in the mixture obtained to step (1)
Alkane slurry.Wherein, by weight percentage, the doping of the electronegative micro-nano granules in the surface is 1%-40%, preferably
5%-8%.The electronegative micro-nano granules in surface can be silica dioxide granule and/or nano silicon particles, particle size range
10nm-2000nm。
By adding silica dioxide granule and/or silicon nanometer in the mixture of dimethyl silicone polymer and curing agent
Grain, can be improved Si-O-Si bond structure concentration in dimethyl silicone polymer, so that band is negative after improving dimethyl silicone polymer doping
Electrically.
(3) dimethyl silicone polymer slurry is coated in template using modes such as blade coatings, it is then, right under vacuum conditions
Film is de-gassed to remove bubble in membrane removal, later, is dried in 50-100 DEG C of baking oven 1-5 hours, is preferably dried 2 hours at 70 DEG C.It dries
After dry, film stripping is got off, with a thickness of 10 μm -1000 μm.
(4) film that step (3) obtains is immersed in alkaline solution or it is sprayed using alkaline solution, the time is 10
It -1000 seconds seconds, is then cleaned with deionized water, and dried up with inert gas, to obtain PDMS membrane.
Wherein, alkaline solution is that concentration is 0.01mol/L-10mol/L ammonium hydroxide or concentration is 0.01mol/L-10mol/L
Sodium hydroxide solution or combination, it is preferable that the alkaline solution is ammonium hydroxide, because ammonium hydroxide not only can change pH
Value, and dimethyl silicone polymer can be made to polarize.
After being handled by step (4), polydimethylsiloxane--modified is realized, its negatively charged is improved.Negatively charged
Stronger, the charge generated in friction process is more, so as to improve friction nanometer power generator output performance.
It can be used for preparing friction generator by the PDMS membrane that the above method is prepared.Fig. 2 is this hair
The structural schematic diagram of bright a kind of friction generator, as shown in Fig. 2, friction generator includes: the first electricity being cascading
Pole layer 300, the first high polymer insulating layer 301, the second high polymer insulating layer 302 and the second electrode lay 303.
Frictional interface, first electrode are constituted between first high polymer insulating layer 301 and the second high polymer insulating layer 302
Layer 300 and the second electrode lay 303 are two output ends of friction generator.Wherein, 301 He of the first high polymer insulating layer
At least one layer PDMS membrane being prepared using the above method in second high polymer insulating layer 302.
Above-mentioned introduction be four-layer structure friction generator.In practice, the triboelectricity of three-decker can also be prepared
Machine omits the second high molecular polymerization insulating layer, the first high polymer insulating layer and the second electrode lay is made to constitute friction circle
Face, in this case, the PDMS membrane that the first high polymer insulating layer uses the above method to be prepared.
Alternatively, increasing by one layer of high molecular polymer between the first high polymer insulating layer and the second high polymer insulating layer
The film layer between two parties of material, forms the friction generator of five-layer structure, and film layer between two parties and the first high molecular polymer is made to insulate
Layer and/or between two parties film layer and the second high polymer insulating layer constitute frictional interface, in this case, constitute friction circle
At least one layer PDMS membrane being prepared using the above method in the layer in face.Alternatively, in the first polyphosphazene polymer
It closes and increases by one layer of intervening electrode layer between object insulating layer and the second high polymer insulating layer, form another five-layer structure
Friction generator makes intervening electrode layer and the first high polymer insulating layer and/or intervening electrode layer and the second polyphosphazene polymer
It closes object insulating layer and constitutes frictional interface, in this case, constitute the polymer insulation layer of frictional interface using above method system
Standby obtained PDMS membrane.
The material that above-mentioned friction generator uses first electrode 300 and second electrode 303 does not have particular/special requirement, all
It is capable of forming the material of conductive layer all within protection scope of the present invention.
In above-mentioned friction generator, at least one layer uses PDMS membrane of the invention, for not using
For other high polymer insulating layers of PDMS membrane of the invention, the material used is selected from polyimides
Film, aniline formaldehyde resin film, polyoxymethylene film, ethyl cellulose film, polyamide film, melamino-formaldehyde film,
Poly (ethylene glycol) two acid ester film, cellophane, cellulose acetate film, polyethylene glycol adipate film, poly- adjacent benzene
Diformazan diallyl phthalate film, cellulose sponge film, renewable sponge film, elastic polyurethane body thin film, styrene-acrylonitrile copolymer are total
Homopolymer film, styrene-butadiene-copolymer film, staple fibre film, polymethyl methacrylate film, polyvinyl alcohol are thin
Film, polyisobutene film, pet film, polyvinyl butyral film, formaldehyde-phenol condensation polymer are thin
Film, neoprene film, butadiene-propylene copolymer film, natural rubber films, polyacrylonitrile film and acrylonitrile vinyl chloride
Any one in copolymer film.
It is substantially mentioned using the output performance of the friction generator of the PDMS membrane of the method for the present invention preparation
Height, compared with not using the friction generator of PDMS membrane of the method for the present invention preparation, negative voltage be can be improved
50% or more, electric current improves 30% or more, and charging time when charging voltage reaches 10V shortens 40%.
Embodiment
Implementation of the invention is illustrated below by specific embodiment, it will be apparent to a skilled person that this
It is understood not to the limitation to scope of the invention as claimed.Material as used in the following examples can regular market purchase obtain
?.Device as used in the following examples is conventional equipment.In the following examples, the experimental methods for specific conditions are not specified,
According to conventional methods and conditions, or according to product manual it selects.
Embodiment 1
1. preparing PDMS membrane
Curing agent (DOW CORNING 184) is added in dimethyl silicone polymer (DOW CORNING), is uniformly mixing to obtain mixture,
In, the mass ratio of dimethyl silicone polymer and curing agent is 10:1.The dioxy that partial size is 200nm-500nm is adulterated into mixture
Silicon carbide particle, doping are 7% (weight), are uniformly mixed and obtain dimethyl silicone polymer slurry.Dimethyl silicone polymer is starched
Material blade coating is under vacuum conditions de-gassed film in template to remove bubble in membrane removal, then, dries 2 for 70 DEG C in drying box
Hour.Then, film is immersed in the ammonium hydroxide that concentration is 1mol/L 800 seconds.It is then with deionized water that Membrane cleaning is clean, it is used in combination
Inert gas is dried up, so that PDMS membrane is obtained, with a thickness of 300 μm.
2. the preparation of friction generator
Using above-mentioned PDMS membrane as the first high polymer insulating layer 301, one plates on side surface
The aluminium film of thickness 100nm, the aluminium film are first electrode layer 300.Using with a thickness of 300 μm of polyethylene terephthalates
Ester (PET) is pressed as the second high polymer insulating layer 302 using 100 μm of thickness of copper foil as the second electrode lay 303
According to first electrode layer 300, the first high polymer insulating layer 301, the second high polymer insulating layer 302 and second electrode
The sequence of layer 303 stacks each layer, obtains friction generator 1-1#.The edge of the friction generator is sealed with common adhesive plaster.
Embodiment 2
1. preparing PDMS membrane
Curing agent (DOW CORNING 184) is added in dimethyl silicone polymer (DOW CORNING), is uniformly mixing to obtain mixture,
In, the mass ratio of dimethyl silicone polymer and curing agent is 1:1.The titanium dioxide that partial size is 10nm-300nm is adulterated into mixture
Silicon particle, doping are 5% (weight), are uniformly mixed and obtain dimethyl silicone polymer slurry.By dimethyl silicone polymer slurry
Blade coating is under vacuum conditions de-gassed film in template to remove bubble in membrane removal, and then, 50 DEG C of bakings 5 are small in drying box
When.Then, film is immersed in the ammonium hydroxide that concentration is 0.01mol/L 1000 seconds.It is then with deionized water that Membrane cleaning is clean, and
It is dried up with inert gas, so that PDMS membrane is obtained, with a thickness of 300 μm.
2. the preparation of friction generator
Using above-mentioned PDMS membrane as the first high polymer insulating layer 301, one plates on side surface
The aluminium film of thickness 100nm, the aluminium film are first electrode layer 300.Using with a thickness of 300 μm of polyethylene terephthalates
Ester (PET) is pressed as the second high polymer insulating layer 302 using 100 μm of thickness of copper foil as the second electrode lay 303
According to first electrode layer 300, the first high polymer insulating layer 301, the second high polymer insulating layer 302 and second electrode
The sequence of layer 303 stacks each layer, obtains friction generator 1-2#.The edge of the friction generator is sealed with common adhesive plaster.
Embodiment 3
1. preparing PDMS membrane
Curing agent (DOW CORNING 184) is added in dimethyl silicone polymer (DOW CORNING), is uniformly mixing to obtain mixture,
In, the mass ratio of dimethyl silicone polymer and curing agent is 20:1.The dioxy that partial size is 500nm-700nm is adulterated into mixture
Silicon carbide particle, doping are 8% (weight), are uniformly mixed and obtain dimethyl silicone polymer slurry.Dimethyl silicone polymer is starched
Material blade coating is under vacuum conditions de-gassed film in template to remove bubble in membrane removal, then, dries 2 for 100 DEG C in drying box
Hour.Then, film is immersed in the sodium hydroxide solution that concentration is 10mol/L 10 seconds.Then with deionized water by Membrane cleaning
Completely, and with inert gas it is dried up, so that PDMS membrane is obtained, with a thickness of 300 μm.
2. the preparation of friction generator
Using above-mentioned PDMS membrane as the first high polymer insulating layer 301, one plates on side surface
The aluminium film of thickness 100nm, the aluminium film are first electrode layer 300.Using with a thickness of 300 μm of polyethylene terephthalates
Ester (PET) is pressed as the second high polymer insulating layer 302 using 100 μm of thickness of copper foil as the second electrode lay 303
According to first electrode layer 300, the first high polymer insulating layer 301, the second high polymer insulating layer 302 and second electrode
The sequence of layer 303 stacks each layer, obtains friction generator 1-3#.The edge of the friction generator is sealed with common adhesive plaster.
Comparative example
1. preparing PDMS membrane
Curing agent (DOW CORNING 184) is added in dimethyl silicone polymer (DOW CORNING), is uniformly mixing to obtain poly dimethyl
Siloxanes slurry, wherein the mass ratio of dimethyl silicone polymer and curing agent is 10:1.Dimethyl silicone polymer slurry is scratched
In template, film is de-gassed under vacuum conditions to remove bubble in membrane removal, then, is dried 2 hours for 70 DEG C in drying box, from
And PDMS membrane is obtained, with a thickness of 290 μm.
2. the preparation of friction generator
Using above-mentioned PDMS membrane as the first high polymer insulating layer 301, one plates on side surface
The aluminium film of thickness 100nm, the aluminium film are first electrode layer 300.Using with a thickness of 300 μm of polyethylene terephthalates
Ester (PET) is pressed as the second high polymer insulating layer 302 using 100 μm of thickness of copper foil as the second electrode lay 303
According to first electrode layer 300, the first high polymer insulating layer 301, the second high polymer insulating layer 302 and second electrode
The sequence of layer 303 stacks each layer, obtains friction generator 2#.The edge of the friction generator is sealed with common adhesive plaster.
The friction generator 2# of the friction generator 1-1# and comparative examples preparation that prepare to embodiment 1 carry out voltage, electric current
And charging measurement, test pressure are 50N, test temperature is 25 DEG C, testing humidity 30%.The results show that friction generator 1-
The forward voltage of 1# and friction generator 2# are essentially identical, are 440V, and compared to friction generator 2# negative voltage (-
344V), friction generator 1-1# negative voltage (- 520V) improves about 50%.After tested, the electric current of friction generator 1-1# is
The electric current of 3 μ A, friction generator 2# are 2.25 μ A, and compared to friction generator 2#, the electric current of friction generator 1-1# is improved
30%.Fig. 3 shows sample charging performance test result, and curve 1 and curve 2 respectively indicate friction generator 1-1# and friction hair
Motor 2#'s as a result, it can be seen from the figure that when charging voltage reaches 10V, the charging time of friction generator 1-1# is 58.8
Second, the charging time of friction generator 2# is 95.9 seconds, and the capacitor charging performance of friction generator 1-1# is significantly improved,
Charging time shortens 40%.From the point of view of the comparison to friction generator 1-1# and friction generator 2#, side of the present invention has been used
The output performance of the friction generator of the PDMS film of method preparation is increased substantially.
Claims (31)
1. a kind of preparation method of PDMS membrane, which is characterized in that this method comprises the following steps:
(1) curing agent is added in dimethyl silicone polymer, is uniformly mixing to obtain mixture；
(2) the electronegative micro-nano granules of doping surfaces obtain dimethyl silicone polymer slurry in the mixture obtained to step (1)
Material；
(3) the dimethyl silicone polymer slurry that step (2) obtains is coated in template, and deaerated to film, then dry film；
(4) film that step (3) obtains is immersed in alkaline solution or it is sprayed using alkaline solution, then cleaning, drying,
To obtain PDMS membrane.
2. preparation method according to claim 1, which is characterized in that in step (1), the dimethyl silicone polymer and institute
The mass ratio for stating curing agent is 1:1-20:1.
3. preparation method according to claim 2, which is characterized in that in step (1), the dimethyl silicone polymer and institute
The mass ratio for stating curing agent is 10:1.
4. preparation method according to claim 1-3, which is characterized in that in step (2), by weight percentage
Meter, the doping of the electronegative micro-nano granules in surface is 1%-40%.
5. the preparation method according to claim 4, which is characterized in that in step (2), by weight percentage, the table
The doping of the electronegative micro-nano granules in face is 5%-8%.
6. -3,5 described in any item preparation methods according to claim 1, which is characterized in that in step (2), the surface band is negative
The micro-nano granules of electricity are silica dioxide granule and/or nano silicon particles, particle size range 10nm-2000nm.
7. the preparation method according to claim 4, which is characterized in that in step (2), the surface is electronegative micro-nano
Particle is silica dioxide granule and/or nano silicon particles, particle size range 10nm-2000nm.
8. -3,5,7 described in any item preparation methods according to claim 1, which is characterized in that in step (3), the drying is
Finger dries 1-5 hours in 50-100 DEG C of baking oven.
9. the preparation method according to claim 4, which is characterized in that in step (3), the drying refers at 50-100 DEG C
It is dried 1-5 hours in baking oven.
10. preparation method according to claim 6, which is characterized in that in step (3), the drying refers in 50-100
It is dried 1-5 hours in DEG C baking oven.
11. preparation method according to claim 8, which is characterized in that in step (3), the drying refers to dries at 70 DEG C
It is dried 2 hours in case.
12. preparation method according to claim 9 or 10, which is characterized in that in step (3), the drying refers to 70
It is dried 2 hours in DEG C baking oven.
13. -3,5,7, the described in any item preparation methods of 9-11 according to claim 1, which is characterized in that described in step (4)
Alkaline solution is that concentration is 0.01mol/L-10mol/L ammonium hydroxide and/or sodium hydroxide solution.
14. the preparation method according to claim 4, which is characterized in that in step (4), the alkaline solution is that concentration is
0.01mol/L-10mol/L ammonium hydroxide and/or sodium hydroxide solution.
15. preparation method according to claim 6, which is characterized in that in step (4), the alkaline solution is that concentration is
0.01mol/L-10mol/L ammonium hydroxide and/or sodium hydroxide solution.
16. preparation method according to claim 8, which is characterized in that in step (4), the alkaline solution is that concentration is
0.01mol/L-10mol/L ammonium hydroxide and/or sodium hydroxide solution.
17. preparation method according to claim 12, which is characterized in that in step (4), the alkaline solution is that concentration is
0.01mol/L-10mol/L ammonium hydroxide and/or sodium hydroxide solution.
18. preparation method according to claim 13, which is characterized in that in step (4), the alkaline solution is that concentration is
0.01mol/L-10mol/L ammonium hydroxide.
19. the described in any item preparation methods of 4-17 according to claim 1, which is characterized in that in step (4), the alkalinity is molten
Liquid is that concentration is 0.01mol/L-10mol/L ammonium hydroxide.
20. preparation method according to claim 18, which is characterized in that in step (4), the alkaline solution is that concentration is
The ammonium hydroxide of 1mol/L.
21. preparation method according to claim 19, which is characterized in that in step (4), the alkaline solution is that concentration is
The ammonium hydroxide of 1mol/L.
22. -3,5,7, the described in any item preparation methods of 9-11,14-18,20-21 according to claim 1, which is characterized in that step
Suddenly in (4), by film that step (3) obtains immerse in alkaline solution or using alkaline solution to the time that it is sprayed be 10 seconds-
1000 seconds.
23. the preparation method according to claim 4, which is characterized in that in step (4), the film that step (3) is obtained immerses
It is -1000 seconds 10 seconds to the time that it is sprayed in alkaline solution or using alkaline solution.
24. preparation method according to claim 6, which is characterized in that in step (4), the film that step (3) is obtained immerses
It is -1000 seconds 10 seconds to the time that it is sprayed in alkaline solution or using alkaline solution.
25. preparation method according to claim 8, which is characterized in that in step (4), the film that step (3) is obtained immerses
It is -1000 seconds 10 seconds to the time that it is sprayed in alkaline solution or using alkaline solution.
26. preparation method according to claim 12, which is characterized in that in step (4), the film that step (3) is obtained soaks
Entering in alkaline solution or using alkaline solution is -1000 seconds 10 seconds to the time that it is sprayed.
27. preparation method according to claim 13, which is characterized in that in step (4), the film that step (3) is obtained soaks
Entering in alkaline solution or using alkaline solution is -1000 seconds 10 seconds to the time that it is sprayed.
28. preparation method according to claim 19, which is characterized in that in step (4), the film that step (3) is obtained soaks
Entering in alkaline solution or using alkaline solution is -1000 seconds 10 seconds to the time that it is sprayed.
29. a kind of PDMS membrane, which is characterized in that use the described in any item preparation method systems of claim 1-28
It is standby to obtain.
30. PDMS membrane or claim that the described in any item preparation methods of claim 1-28 are prepared
Application of the PDMS membrane described in 29 in preparation friction generator.
31. a kind of friction generator, which is characterized in that the friction generator includes the first electrode layer being stacked, and first
High polymer insulating layer and the second electrode lay；Alternatively, the friction generator includes the first electrode layer being stacked,
First high polymer insulating layer, the second high polymer insulating layer and the second electrode lay；Alternatively, the friction generator
Including the first electrode layer being stacked, the first high polymer insulating layer, intervening electrode layer, the second high molecular polymer is exhausted
Edge layer and the second electrode lay；Alternatively, the friction generator includes the first electrode layer being stacked, the first high molecular polymer
Insulating layer, between two parties film layer, the second high polymer insulating layer and the second electrode lay；
Wherein, the first high polymer insulating layer, and/or, the second high polymer insulating layer, and/or, film layer between two parties
The PDMS membrane be prepared by the described in any item preparation methods of claim 1-28 or claim 29 institute
The PDMS membrane stated is constituted.
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| CN112239550B (en) * | 2019-07-30 | 2021-08-10 | 中国科学院兰州化学物理研究所 | Anti-static film and preparation method thereof |
| CN110389066A (en) * | 2019-08-26 | 2019-10-29 | 浙江理工大学 | A kind of pigment color difference test method of dimethyl silicone polymer-pigment-dimethyl silicone polymer sandwich type structural |
| CN113876630A (en) * | 2021-09-30 | 2022-01-04 | 南昌大学 | Preparation method and application of antibacterial, anti-adhesion, acid-resistant, antifouling and hydrophobic tooth protective agent |
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| CN104626433A (en) * | 2013-11-08 | 2015-05-20 | 纳米新能源（唐山）有限责任公司 | Polydimethylsiloxane membrane, preparation method thereof, and friction electric generator using same |
| CN103877874A (en) * | 2014-04-04 | 2014-06-25 | 大连理工大学 | Preparation method of polydimethylsiloxane-carbon nano tube composite membrane, composite membrane and method for separating and purifying butyl alcohol |
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