CN110277936A - A kind of flexibility can repair friction nanometer power generator and its application - Google Patents
A kind of flexibility can repair friction nanometer power generator and its application Download PDFInfo
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- CN110277936A CN110277936A CN201910278004.9A CN201910278004A CN110277936A CN 110277936 A CN110277936 A CN 110277936A CN 201910278004 A CN201910278004 A CN 201910278004A CN 110277936 A CN110277936 A CN 110277936A
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- flexibility
- friction nanometer
- power generator
- nanometer power
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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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Abstract
The present invention relates to micro- energy resource collecting technical fields, and in particular to a kind of flexibility can repair hydrogel base friction nanometer power generator and its application on wearable electronic device.The present invention is based on friction nanometer power generators, design flexibility material is the electrode basement of friction nanometer power generator, addition carbon nanotube is as conductive material on this basis, and poly-dopamine and borax are introduced in flexible electrode, it makes it have and meets water self-repair function, high flexibility silica gel packaging is finally used, the flexible application of friction nanometer power generator is realized and application can be repaired.The present invention not only devises a kind of flexible preferable, the high friction nanometer power generator of biological safety, the small fricting movement energy generated when human motion can be collected, and it is applied on wearable electronic device, also in conventional flexible material introduce can repair function, overcome the wearable material defect easy to wear broken.
Description
Technical field
The present invention relates to micro- energy resource collecting technical fields, and in particular to a kind of flexibility can repair the system of friction nanometer power generator
Preparation Method and its application on wearable electronic device.
Background technique
The energy always be push human social development an important factor for, be becoming tight the day of energy source use and the whole world
Environment constantly deteriorates, and how the more to walk the more remote on the road of sustainable development, and solving energy resource supply is whole world facing
One of the problem of.
It is portable, can in addition, with the rapid development of electronic science and technology and the growing material life demand of the mankind
Wearable electronic product have become life in indispensable a part, energy supply become restrict its development it is important because
Element.Currently, acquiring ambient energy by various environmental energy acquisition techniques is supplied to electric system, have become in recent years
The research hotspot come.
It was successfully developed since friction nanometer power generator 2012, and relies on its unique advantage, rapidly developed.Currently,
Friction nanometer power generator has developed into four seed types, and be successfully applied to collect diversified forms frictional energy, as mechanical energy,
Move energy, wind energy, water energy etc..
Summary of the invention
The invention discloses a kind of flexibility can repair friction nanometer power generator and preparation method thereof in wearable electronic device
Application on part.The present invention is based on triboelectrifications and electrostatic effect principle, collect small frictional energy, are translated into electricity
Can, realize the microminiaturization, integrated of energy collection；Moreover, the present invention overcomes friction nanometer power generators in wearable electronic
Device applies the defect and limitation of upper easily stretchable abrasion, materials combine flexibility used and can repair two kinds of characteristics.
The present invention adopts the following technical scheme:
A kind of flexibility can repair friction nanometer power generator, the flexibility can repair friction nanometer power generator preparation method include with
Lower step:
(1) ammonium hydroxide, ethyl alcohol, water are mixed, after stirring for the first time, injects dopamine hydrochloride solution, is sunk after continuing stirring
It forms sediment, centrifugation, washing, obtains poly-dopamine nano particle；
(2) polyvinyl alcohol, carbon nanotube, poly-dopamine nano particle and water are mixed, heating stirring forms gel, adds fine jade
Lipolysaccharide and borax, heating stirring obtains hydrogel again；
(3) hydrogel is subjected to freeze-thaw circular treatment, friction nanometer power generator can be repaired by obtaining flexibility.
A kind of flexibility can repair the preparation method of friction nanometer power generator, comprising the following steps:
(1) ammonium hydroxide, ethyl alcohol, water are mixed, after stirring for the first time, injects dopamine hydrochloride solution, is sunk after continuing stirring
It forms sediment, centrifugation, washing, obtains poly-dopamine nano particle；
(2) polyvinyl alcohol, carbon nanotube, poly-dopamine nano particle and water are mixed, heating stirring forms gel, adds fine jade
Lipolysaccharide and borax, heating stirring obtains hydrogel again；
(3) hydrogel is subjected to freeze-thaw circular treatment, friction nanometer power generator can be repaired by obtaining flexibility.
A kind of flexibility can repair friction nanometer generating equipment, and the flexibility can repair the preparation side of friction nanometer generating equipment
Method the following steps are included:
(1) ammonium hydroxide, ethyl alcohol, water are mixed, after stirring for the first time, injects dopamine hydrochloride solution, is sunk after continuing stirring
It forms sediment, centrifugation, washing, obtains poly-dopamine nano particle；
(2) polyvinyl alcohol, carbon nanotube, poly-dopamine nano particle and water are mixed, heating stirring forms gel, adds fine jade
Lipolysaccharide and borax, heating stirring obtains hydrogel again；
(3) hydrogel is subjected to freeze-thaw circular treatment, friction nanometer power generator can be repaired by obtaining flexibility；
(4) friction nanometer power generator side wall insertion conductor wire can be repaired in flexibility, then is encapsulated with soft silica gel, obtaining flexibility can repair
Rub nanometer generating equipment.
A kind of flexibility can repair the preparation method of friction nanometer generating equipment, comprising the following steps:
(1) ammonium hydroxide, ethyl alcohol, water are mixed, after stirring for the first time, injects dopamine hydrochloride solution, is sunk after continuing stirring
It forms sediment, centrifugation, washing, obtains poly-dopamine nano particle；
(2) polyvinyl alcohol, carbon nanotube, poly-dopamine nano particle and water are mixed, heating stirring forms gel, adds fine jade
Lipolysaccharide and borax, heating stirring obtains hydrogel again；
(3) hydrogel is subjected to freeze-thaw circular treatment, friction nanometer power generator can be repaired by obtaining flexibility；
(4) friction nanometer power generator side wall insertion conductor wire can be repaired in flexibility, then is encapsulated with soft silica gel, obtaining flexibility can repair
Rub nanometer generating equipment.
In the present invention, in step (1), stirring for the first time is stirring 30 minutes at room temperature；The time for continuing stirring is 24 small
When；Continue to stand after stirring and be precipitated, is then centrifuged for, the solids after centrifugation is washed, poly-dopamine nano particle is obtained；
The revolving speed of centrifugation is 8000rpm.
In the present invention, in step (1), ammonium hydroxide, ethyl alcohol, water volume ratio be 1:15~20:35~38.Dopamine hydrochloride
The dosage of solution is the 25% of ethyl alcohol volume, and the concentration of dopamine hydrochloride solution is 50mg/mL.
In the present invention, in step (2), the temperature of heating is 90 DEG C, and the temperature of heating stirring is 95 DEG C again.
In the present invention, in step (2), polyvinyl alcohol, carbon nanotube, poly-dopamine nano particle, agarose mass ratio
For 40:1.5~2:1:3.5~3.6.The dosage of boric acid sodium water solution and the usage ratio of polyvinyl alcohol are 13mL:3132mg, boron
The concentration of acid sodium aqueous solution is 0.04M.
In the present invention, in step (3), by hydrogel be put into mold suppress sheet-like hydrous gel place into refrigerator carry out it is cold
Jelly-thaw cycles processing；The time freezed every time is 1 hour, and the time of defrosting is 6 hours, time of freeze-thaw circular treatment
Number is 3~5 times；The temperature of freezing is -20 DEG C, and the temperature of defrosting is room temperature.
In the present invention, in step (4), soft silica gel is encapsulated as the flexibility that be inserted into conductor wire can repair friction nanometer power generator
It is placed in soft silica gel raw material, stands solidification, realize soft silica gel encapsulation；Preferably, soft silica gel raw material is Ecoflex A and B, is existing
There is material.
In the present invention, flexibility, which can repair friction nanometer generating equipment, can be used for preparing wearable electronic, such as electronics
Wrist-watch, flexible illuminator etc., the conductor wire that flexibility can repair friction nanometer generating equipment is electrically connected with wearable electronic,
So as to the power supply of electron equipment, composition flexibility can repair wearing electronic device.
Friction nanometer power generator, flexibility, which can be repaired, the invention also discloses the flexibility prepared according to above-mentioned preparation method to repair
Rub nanometer generating equipment again；And above-mentioned flexibility can repair friction nanometer power generator and receive preparing above-mentioned flexibility and can repair friction
Rice generating equipment or above-mentioned flexibility can repair the application in wearing electronic device；And above-mentioned flexibility can repair friction nanometer hair
Electric equipment prepare above-mentioned flexibility can repair wearing electronic device in application.
Flexibility of the invention can repair the preparation method of friction nanometer power generator, for example, it may include following steps:
(1) ammonium hydroxide, ethyl alcohol, deionized water are mixed in a certain ratio, are stirred 30 minutes at 30 DEG C, dopamine hydrochloride is molten
Liquid injects in above-mentioned solution, continues stirring 24 hours, and poly-dopamine nano particle can be obtained in precipitating, centrifugation, washing；
(2) polyvinyl alcohol, carbon nanotube, poly-dopamine and deionized water are mixed, are heated to 90 DEG C and stir up to forming gel,
Agarose and borax are added, stirs the hydrogel that can be formed in 95 DEG C；
(3) above-mentioned gel is put into the sheet being pressed into mold with a thickness of 3mm or so, is put into refrigerator and freezes 1 hour, take out
It thaws 6 hours, recycles 3 times repeatedly, obtain the preferable flexible generator of elasticity；
(4) above-mentioned flexible generator is cut into bulk, is inserted into conductor wire in side, is encapsulated with soft silica gel, flexibility can be obtained can
Repair friction nanometer power generator；Using Ecoflex A and B, 50:1 is uniformly mixed by volume for soft silica gel encapsulation, stands 30 minutes
It is curable afterwards.
Flexibility disclosed by the invention can repair friction nanometer power generator with a series of special physics, chemical property, electricity
Pole, as substrate, can reach the purpose that bend tension uses using polyvinyl alcohol hydrogel；Poly-dopamine is introduced, makes material in light
Heat can be absorbed according under the conditions of, promote hydrogel crystal grain to melt, realize the photo-thermal repair function of material；Boric acid ester bond is introduced,
Realize the water repair function of material.
Detailed description of the invention
Fig. 1 is poly-dopamine nano particle characterization, (A) TEM figure, (B) SEM figure；
Fig. 2 is the SEM chart sign that flexibility can repair friction nanometer power generator；
Fig. 3 is the tensional state figure that flexibility can repair friction nanometer power generator；
Fig. 4 is the 2W/cm in NIR laser2Under exposure, the change of the temperature change of the PVA hydrogel with different compositions at any time
Change；
Fig. 5 is that flexibility can repair after friction nanometer power generator is cut by water or NIR induction self-repair procedure figure；
Fig. 6 is the reparation front and back stress-strain diagram that flexibility can repair friction nanometer power generator；
Fig. 7 is light micrograph of PVA/PDAP/MWCNT hydrogel before and after selfreparing；
Fig. 8 is the deformation phenogram that flexibility can repair friction nanometer generating equipment；
Fig. 9 is the tensional state electric signal figure that flexibility can repair friction nanometer generating equipment；
Figure 10 is the reparation front and back electric signal figure that flexibility can repair friction nanometer generating equipment；
Figure 11 is the structure chart that flexibility can repair friction nanometer generating equipment；
Figure 12 is the working machine drawing that flexibility can repair friction nanometer generating equipment；
Figure 13 is the electricity output performance that flexibility can repair friction nanometer generating equipment；
Figure 14 is that flexibility can repair the original of friction nanometer generating equipment and stretch picture；
Figure 15 is the application that flexibility can repair friction nanometer power generator, and (A) lights light bulb, (B) lights wrist-watch；
Figure 16 is the capacitor for being connected to power management and the charging curve of wearable electronic, and illustration shows HS-TENG
Rectified current；
Figure 17 is the photo (scale bar, 5 centimetres) for the LED for tapping HS-TENG under various modifications and driving.
Specific embodiment
Embodiment one
Flexibility can repair the preparation method of friction nanometer power generator, comprising the following steps:
(1) 3.75mL ammonium hydroxide (28-30%), 60mL ethyl alcohol, 135mL deionized water are mixed, is stirred 30 minutes at 30 DEG C, then
It injects dopamine hydrochloride solution (0.75gDAHCl is added in 15mL water), continues stirring 24 hours at 30 DEG C, be then allowed to stand
It is precipitated, is then centrifuged for (revolving speed 8000rpm), the solids after centrifugation is washed, poly-dopamine nanometer can be obtained
Grain；
Fig. 1 is the characterization of above-mentioned poly-dopamine nano particle, (A) TEM figure, (B) SEM figure.
(2) by 3.132g PVAC polyvinylalcohol -124, the above-mentioned poly-dopamine nanometer of 0.14g carbon nanotube MWCNT, 0.0783g
Particle is added in 12mL deionized water, adds 0.28g agarose and boron up to forming gel within heating stirring 30 minutes at 90 DEG C
Sour sodium Na2B4O7·10H2O aqueous solution (13mL, 0.04M), 95 DEG C are stirred 30 minutes, can form hydrogel；
(3) above-mentioned hydrogel is put into the sheet-like hydrous gel being pressed into mold with a thickness of 3mm or so, is then placed in -20 in refrigerator
It DEG C freezing 1 hour, takes out thaw at RT 6 hours, recycles 3 times repeatedly, friction can be repaired by obtaining elastic preferable flexibility
Nano generator.
Fig. 2 is the SEM chart sign that above-mentioned flexibility can repair friction nanometer power generator, and A, B, C gradually amplify.
Fig. 3 is the tensional state figure that flexibility can repair friction nanometer power generator；λ indicates ratio of elongation.
Fig. 4 is the 2W/cm in NIR laser2Under exposure, the temperature change of the PVA hydrogel with different compositions is at any time
Variation.
By inducing selfreparing in water or NIR after razor blade (scale bar, 1cm) cutting, process is referring to Fig. 5, wherein a
Water induction, b are NIR induction；Fig. 6 is the reparation front and back stress-strain diagram that flexibility can repair friction nanometer power generator；Fig. 7 is
Light micrograph (scale bar, 0.5mm) of PVA/PDAP/MWCNT hydrogel before and after selfreparing.
Friction nanometer power generator of the present invention laid out above has more excellent elongation at break and flexibility, and to near-infrared
And water sensitive, level before fracture can be restored to by repairing tensile strength in a short time.
Embodiment two
Flexibility can repair the preparation method of friction nanometer generating equipment, comprising the following steps: can repair the flexibility of embodiment one
Friction nanometer power generator is cut into bulk, is inserted into conductor wire in side, is encapsulated with soft silica gel, flexibility can be obtained can repair friction and receive
Rice generating equipment；The flexibility for being inserted into conductor wire can be repaired in friction nanometer power generator merging soft silica gel raw material, solidification is stood, it is real
Existing soft silica gel encapsulation；Soft silica gel encapsulation uses Ecoflex A and B, and 50:1 is uniformly mixed as raw material by volume, stands 30 minutes
It is curable afterwards.
Fig. 8 is the characterization that flexibility can repair friction nanometer generating equipment, is various modifications figure；Fig. 9 can be repaired for flexibility and be rubbed
Wipe the tensional state electric signal of nanometer generating equipment；Figure 10 is the reparation front and back telecommunications that flexibility can repair friction nanometer generating equipment
Number；It compares and deforms and repair front and back electric signal, as tensile elongation increases, electric signal dies down, but variation is little in λ < 2,
Change in electric is little before and after near infrared light and water are repaired, and has more stable electric signal output under various use environments.
Figure 11 is the structure chart that flexibility can repair friction nanometer generating equipment, and Figure 12 is that flexibility can repair friction nanometer generating
The working machine of equipment charts, and Figure 13 is the electricity output performance that flexibility can repair friction nanometer generating equipment, and Figure 14 is that flexibility can
It repairs the original of friction nanometer generating equipment and stretches picture；
Embodiment three
The flexibility of embodiment two can be repaired friction nanometer generating equipment (HS-TENG) to combine with wearable electronic, obtained
Flexibility can repair wearing electronic device.Wearable electronic is conventional products, such as electronic watch, flexible illuminator etc., is incited somebody to action
The conductor wire that flexibility can repair friction nanometer generating equipment is electrically connected with wearable electronic, so as to the confession of electron equipment
Electricity, composition flexibility can repair wearing electronic device.
Figure 15 is the application that flexibility can repair friction nanometer power generator, and (A) lights light bulb, (B) lights wrist-watch, illustrates above-mentioned
15 LED of sustainable illumination and for electronic watch power.Figure 16 is the capacitor and wearable electronic for being connected to power management
Charging curve, illustration shows the rectified current of HS-TENG.Figure 17 taps HS-TENG under various modifications and drives
The photo (scale bar, 5 centimetres) of LED.
Claims (10)
1. a kind of flexibility can repair friction nanometer power generator, the preparation method that the flexibility can repair friction nanometer power generator includes
Following steps:
(1) ammonium hydroxide, ethyl alcohol, water are mixed, after stirring for the first time, injects dopamine hydrochloride solution, is sunk after continuing stirring
It forms sediment, centrifugation, washing, obtains poly-dopamine nano particle；
(2) polyvinyl alcohol, carbon nanotube, poly-dopamine nano particle and water are mixed, heating stirring forms gel, adds fine jade
Lipolysaccharide and boric acid sodium water solution, heating stirring obtains hydrogel again；
(3) hydrogel is subjected to freeze-thaw circular treatment, friction nanometer power generator can be repaired by obtaining flexibility.
2. flexibility can repair friction nanometer power generator according to claim 1, which is characterized in that in step (1), continue to stir
It stands and is precipitated afterwards, is then centrifuged for, the solids after centrifugation is washed, poly-dopamine nano particle is obtained；The revolving speed of centrifugation
For 8000rpm.
3. flexibility can repair friction nanometer power generator according to claim 1, which is characterized in that in step (1), stir for the first time
It mixes to stir at room temperature 30 minutes；The time for continuing stirring is 24 hours.
4. flexibility can repair friction nanometer power generator according to claim 1, which is characterized in that in step (1), ammonium hydroxide, second
Alcohol, water volume ratio be 1:15~20:35~38.
5. flexibility can repair friction nanometer power generator according to claim 1, which is characterized in that in step (2), heating stirring
Temperature be 90 DEG C, again the temperature of heating stirring be 95 DEG C.
6. flexibility can repair friction nanometer power generator according to claim 1, which is characterized in that in step (2), polyethylene
Alcohol, carbon nanotube, poly-dopamine nano particle, agarose mass ratio be 40:1.5~2:1:3.5~3.6.
7. flexibility can repair friction nanometer power generator according to claim 1, which is characterized in that in step (3), by hydrogel
It is put into compacting sheet-like hydrous gel in mold and places into progress freeze-thaw circular treatment in refrigerator.
8. flexibility can repair friction nanometer power generator according to claim 1, which is characterized in that in step (3), freeze every time
Time be 1 hour, time of defrosting is 6 hours, and the number of freeze-thaw circular treatment is 3~5 times.
9. flexibility can repair friction nanometer power generator according to claim 1, which is characterized in that in step (3), the temperature of freezing
Degree is -20 DEG C, and the temperature of defrosting is room temperature.
10. flexibility described in claim 1, which can repair friction nanometer power generator, can repair friction nanometer generating equipment in preparation flexibility
Or the flexible application that can be repaired in wearing electronic device.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112087160A (en) * | 2020-08-14 | 2020-12-15 | 桂林理工大学 | Preparation method of flexible friction nano generator based on ionic gel electrode |
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| CN109369928A (en) * | 2018-09-10 | 2019-02-22 | 湖南工业大学 | A kind of single electrode friction nanometer power generator polyvinyl alcohol/Sodium Alginate Hydrogel Films and preparation method thereof |
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| US20090102317A1 (en) * | 2007-10-18 | 2009-04-23 | Cornel Cobianu | Glass based packaging and attachment of saw torque sensor |
| CN108912264A (en) * | 2018-04-27 | 2018-11-30 | 同济大学 | Synthesize star-type polymer, self-healing hydrogel and the preparation method of the multiple response self-healing hydrogel of poly-dopamine particle doping |
| CN108548480A (en) * | 2018-05-09 | 2018-09-18 | 电子科技大学 | Three layers of selfreparing flexibility strain transducer of one kind and preparation method thereof |
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| CN112087160A (en) * | 2020-08-14 | 2020-12-15 | 桂林理工大学 | Preparation method of flexible friction nano generator based on ionic gel electrode |
| CN112087160B (en) * | 2020-08-14 | 2022-09-27 | 桂林理工大学 | Preparation method of flexible friction nano generator based on ionic gel electrode |
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