CN107123731B - A kind of piezoelectric ceramic piece and preparation method by collecting noise power generation - Google Patents
A kind of piezoelectric ceramic piece and preparation method by collecting noise power generation Download PDFInfo
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- CN107123731B CN107123731B CN201710273461.XA CN201710273461A CN107123731B CN 107123731 B CN107123731 B CN 107123731B CN 201710273461 A CN201710273461 A CN 201710273461A CN 107123731 B CN107123731 B CN 107123731B
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- 239000000919 ceramic Substances 0.000 title claims abstract description 71
- 238000010248 power generation Methods 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 29
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000005245 sintering Methods 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 238000010521 absorption reaction Methods 0.000 claims abstract description 11
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims description 42
- 238000000034 method Methods 0.000 claims description 25
- 239000000203 mixture Substances 0.000 claims description 19
- 238000007774 anilox coating Methods 0.000 claims description 13
- 239000002322 conducting polymer Substances 0.000 claims description 11
- 229920001940 conductive polymer Polymers 0.000 claims description 11
- 239000006185 dispersion Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 claims description 5
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims description 4
- 239000002270 dispersing agent Substances 0.000 claims description 4
- 229920001197 polyacetylene Polymers 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- YSZKOFNTXPLTCU-UHFFFAOYSA-N barium lithium Chemical compound [Li].[Ba] YSZKOFNTXPLTCU-UHFFFAOYSA-N 0.000 claims description 3
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical group [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 claims description 3
- 229910002113 barium titanate Inorganic materials 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 229920000767 polyaniline Polymers 0.000 claims description 3
- 229920000128 polypyrrole Polymers 0.000 claims description 3
- 229920000123 polythiophene Polymers 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 238000000498 ball milling Methods 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- 229910052451 lead zirconate titanate Inorganic materials 0.000 claims description 2
- 238000003701 mechanical milling Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 229920002959 polymer blend Polymers 0.000 claims 2
- 239000002253 acid Substances 0.000 claims 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims 1
- 238000007761 roller coating Methods 0.000 claims 1
- 229910002012 Aerosil® Inorganic materials 0.000 abstract description 5
- 238000010924 continuous production Methods 0.000 abstract description 5
- 239000007772 electrode material Substances 0.000 abstract description 4
- 239000004964 aerogel Substances 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 229920000642 polymer Polymers 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 8
- 230000005611 electricity Effects 0.000 description 6
- 239000010408 film Substances 0.000 description 4
- 239000012528 membrane Substances 0.000 description 3
- 238000002407 reforming Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- NKZSPGSOXYXWQA-UHFFFAOYSA-N dioxido(oxo)titanium;lead(2+) Chemical class [Pb+2].[O-][Ti]([O-])=O NKZSPGSOXYXWQA-UHFFFAOYSA-N 0.000 description 1
- 239000002305 electric material Substances 0.000 description 1
- 210000000031 electric organ Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/80—Constructional details
- H10N30/85—Piezoelectric or electrostrictive active materials
- H10N30/852—Composite materials, e.g. having 1-3 or 2-2 type connectivity
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/01—Manufacture or treatment
- H10N30/09—Forming piezoelectric or electrostrictive materials
- H10N30/092—Forming composite materials
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/30—Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/80—Constructional details
- H10N30/88—Mounts; Supports; Enclosures; Casings
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
The present invention relates to piezoceramic-polymer field of compound material, provide a kind of piezoelectric ceramic piece and preparation method by collecting noise power generation.Piezoelectric material is coated in steel disc surface by the present invention, prefabricated flakiness, using steel disc as rigid support and electrode material, piezoelectric ceramic piece is formed after hot setting, then silicon dioxide gel is coated on piezoelectric ceramics surface, it further dries at supercritical conditions, so that piezoelectric sheet surface is formed the sound absorption aerogel layer of holey, further sintering forms the piezoelectric ceramic piece that can collect noise power generation.The present invention absorbs noise using outermost aerosil layer, and the vibration that noise generates efficiently is transmitted to piezoelectric material, improves vibration pressure, realizes noise efficiency power generation.Entirely material has the characteristics that integrated, is suitable for large-scale continuous production.
Description
Technical field
The present invention relates to piezoceramic-polymer field of compound material, and in particular to a kind of pressure by collecting noise power generation
Electroceramics piece and preparation method.
Background technique
The energy is the basis of modern economy social development, and with the extensive application of the energy, people constantly pass through raising resource
Service efficiency taps a new source of energy to meet growing energy demand.Noise be one kind cause that people is irritated or volume is too strong and
The sound being detrimental to health.Noise pollution is mainly derived from communications and transportation, vehicle whistle, industrial noise, construction, society
Meeting noise such as music hall, high-pitched speaker, morning market and people's speaks up.Noise also has certain energy, such as noise reaches
To the jet plane of 160dB, acoustical power is about 10kW；Noise reaches the large blower of 140dB, and acoustical power is
100W.Other various situations, such as the noise that automobile, sound equipment sound source generate also have very big energy value.Acoustic-electric reforming unit
Electric energy can be converted by the sound in environment, the noise protection environment that can be not only effectively reduced in environment, moreover it is possible to for us
Mobile device the energy is provided, application prospect is boundless.Piezoelectric material is widely used converted with pressure and electric signal
Cheng Zhong, the present invention utilize the intrinsic property of piezoelectric material, propose a kind of simple structural composite material, realize and collect noise power generation
Purpose.
Chinese invention patent application number 201410273384.4 discloses a kind of noise power generator, including sequentially connected
Sound collecting loudspeaker, sound amplifying device, acoustic-electric reforming unit and conditioning circuit plate, wherein sound amplifying device is equipped with chamber
Room is equipped with entrance and exit on chamber, is equipped with elastic membrane in chamber and sound amplifying device is divided into Helmholtz resonator
And amplitude amplifier, entrance are located on Helmholtz resonator, outlet is located on amplitude amplifier, and entrance is provided with and sound
The thin neck connected at the necking of loudspeaker is collected, the vibrating diaphragm of acoustic-electric reforming unit is installed on exit and seals amplitude amplifier, bullet
Property film relative to the vibration of sound amplifying device and then drive diaphragm oscillations when receiving noise, the area of elastic membrane is greater than vibration
The area of film.
Chinese invention patent application number 201520567228.9 discloses a kind of street lamp to generate electricity using noise.Street lamp benefit
The receiver for being mutually 120 degree of angles with three receives the sound wave from different directions and causes piezoelectric membrane to produce by the vibration of sound wave
Direct piezoelectric effect is given birth to generate electricity, unemployed noise enters inside device through acoustic-electric transition material, by receiver back
Sound-absorbing material absorbs.The electric energy of generation is stored by circuit amplifier into battery, and the electric energy of storage is flowed by conducting wire
In LED light, light is generated by LED light, projects Transparent lamp shade after the reflection of taper refractive body.Light emitting device two is terminated with photosensitive biography
Sensor perceives the transformation of ambient intensity at any time, so that lamp is shone in due course shinny.A kind of utilization of the utility model
The street lamp of noise power generation, luminous efficiency is higher, uniformity is more preferable, power consumption is more reasonable, environmentally friendly.
Chinese invention patent application number 201410220111.3 discloses one kind and is suitable for noise electric organ, passes through novel pressure
Electric material PVD piezoelectric film realizes the conversion of noise and electric energy.Acoustic-electric transition material is designed to trapezoidal to be attached to horn-like connect
The inside of receiving apparatus, the electric energy that every acoustic-electric switching film generates are pooled to the circuit amplifier below device by conducting wire, pass through
The electric current for crossing amplification is stored into lithium battery, can be powered when the electric energy of storage is enough for LED light.Lithium battery is fully charged
After can replace reserve battery.Whole device is additionally provided with two moving fulcrums simultaneously, convenient for receiving the sound wave from different directions.
To generate electricity to provide electric energy to electrical appliance by noise with this.The invention has reached energy saving, makes full use of noise.But
This device is very low to the absorption efficiency of sound wave, not very practical.
It, can only be from list from foregoing invention patent it can be concluded that the ability of current noise power generator absorption sound wave is poor
One or certain directions collect noise, but in practical applications, sonic propagation of making an uproar be after noise source sending to all the winds
It propagates, and encounters after barrier it may also happen that reflex.Aerosil is a kind of porous material of rigid support
Material has very excellent sound absorption function, and the skeleton of its rigidity, is suitable for the Vibration propagation of sound to base material table
Face will likely prepare novel noise electricity generation material for piezoelectric material is compound therewith.Therefore, the present invention is respective excellent using material
Point constructs a kind of piezoelectric ceramic piece by collecting noise power generation.
Summary of the invention
Noise can only be collected from single or certain directions for current noise power generator, the ability for absorbing sound wave is poor,
And structure is complicated, the auxiliary machinery some of complex of component, integrated level is not high.The present invention proposes a kind of by collecting noise power generation
Piezoelectric ceramic piece and preparation method, the present invention absorbs noise using outermost aerosil layer, and noise is generated
Vibration be efficiently transmitted to piezoelectric material, improve vibration pressure, realize noise efficiency power generation.Entire material has integrated spy
Point, is suitable for large-scale continuous production.
To solve the above problems, the invention adopts the following technical scheme:
Piezoelectric material is prefabricated by a kind of preparation method by collecting the piezoelectric ceramic piece of noise power generation, the present invention first
Then thin slice prepares silica network on it, by further sinter molding, obtain noise power generation piezoelectric ceramics
Piece, the specific method is as follows:
(1) by 8-10 mass parts conducting polymer powder, 1.5-5 mass parts piezoelectric ceramic powder and 0.5-3 mass parts dispersing agent
Dispersion 10-25min is mixed in a high speed mixer, obtains pre-composition；
(2) method for using mechanical lapping, grinds pre-composition, so that the piezoelectric ceramics powder particles in pre-composition refine, together
When by piezoelectric ceramic powder be embedded in conducting polymer in, obtain be blended piezopolymer；
(3) piezopolymer will be blended and is coated uniformly on the steel disc surface that surface clean is crossed, using 600-900 DEG C of high temperature
Sintering forms piezoelectric ceramic piece；
(4) another layer of electrode layer is prepared in piezoelectric ceramic piece surface screen-printed, then silicon dioxide gel is applied into its table
Face, it is further dry under 300-400 DEG C of super critical condition, 22-40Mpa, so that piezoelectric sheet surface is formed the suction of holey
Information gel layer, further sintering forms the piezoelectric ceramic piece that can collect noise power generation.
Preferably, the mechanical milling method includes: ball-milling method, any one in vibro-grinding method；
Preferably, the conducting polymer is one or more of polyaniline, polypyrrole, polythiophene and polyacetylene.
Preferably, the piezoelectric ceramic powder be barium titanate powder, lead zirconate titanate powder, modified lead zirconate titanate powder, lead meta-columbute powder,
Lead niobate barium-lithium powder, modified lead titanate powder, the piezoelectric coefficient d 33 of piezoelectric ceramic powder are more than or equal to 20pC/N, the piezoelectricity pottery
The partial size of porcelain powder is 0.1-1mm.
Preferably, the dispersing agent is one of SP-4330, SP-4310, SP-9810, SP-1800.
Preferably, the revolving speed of the high-speed mixer is 600-1200 rpm.
Preferably, the revolving speed of the mechanical grinder is 60-320 rpm.
Preferably, the coating method is using conventional anilox coating method, and the revolving speed of the anilox roll applicator roll is
1-5rpm。
Preferably, the material of the electrode layer is graphite electrode, aluminium electrode, silver electrode, platinum electrode or gold electrode.
A kind of piezoelectric ceramic piece by collecting noise power generation, it is characterized in that there is the above method to be prepared.
The ability that existing noise power generator absorbs sound wave is poor, and noise can only be collected from single or certain directions, but
It is that in practical applications, sonic propagation of making an uproar is to all the winds to propagate after noise source sending, and may be used also after encountering barrier
Reflex can occur.The present invention proposes a kind of piezoelectric ceramic piece and preparation method by collecting noise power generation, by piezoresistive material
Material is coated in steel disc surface, and prefabricated flakiness forms piezoelectricity pottery using steel disc as rigid support and electrode material, after hot setting
Then silicon dioxide gel is coated on piezoelectric ceramics surface, further dries at supercritical conditions, make piezoelectric sheet by tile
Surface forms the sound absorption aerogel layer of holey, and further sintering forms the piezoelectric ceramic piece that can collect noise power generation.This
Invention absorbs noise using outermost aerosil layer, and the vibration that noise generates efficiently is transmitted to piezoelectric material,
Vibration pressure is improved, noise efficiency power generation is realized.Entirely material has the characteristics that integrated, is suitable for large-scale continuous production.
By the piezoelectric ceramic piece prepared by the present invention by collecting noise power generation and current only noise power generator phase
Than, high conversion efficiency, environmental stability, cost, in terms of have a clear superiority, as shown in table 1.
Table 1:
| Performance indicator | Acoustic-electric high conversion efficiency | Environmental stability | Cost | Continuous production |
| The present invention | 70-85% | Stablize | It is low | It can be with |
| Conventional piezoelectric composite material | 20-50% | It is unstable | It is lower | It cannot |
A kind of piezoelectric ceramic piece and preparation method by collecting noise power generation of the present invention is dashed forward compared with prior art
Out the characteristics of and excellent effect are:
1, the technology absorbs noise using outermost aerosil layer, and the vibration that noise generates efficiently is passed
To piezoelectric material, vibration pressure is improved, noise efficiency power generation is realized.
2, the thin-film material that the present invention uses replaces complicated mechanical structure, planar solves efficient absorption sound wave
Problem saves material, improves utilization rate.
3, as rigid support and electrode material noise electricity generation material is industrially facilitated using stainless steel substrates
Realize continuous production.
4, the noise electricity generation material of the method for the present invention preparation, investment is small, at low cost, has significant market application value.
Specific embodiment
In the following, the present invention will be further described in detail by way of specific embodiments, but this should not be interpreted as to the present invention
Range be only limitted to example below.Without departing from the idea of the above method of the present invention, according to ordinary skill
The various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
It (1) is 0.1mm barium titanate powder and 0.5 mass parts SP-4330 in height by 8 mass parts polyanilines, 1.5 mass parts partial sizes
Dispersion 10min is mixed in fast mixing machine, the revolving speed of the high-speed mixer is 600 rpm, obtains pre-composition；
(2) method for using mechanical lapping, the revolving speed of mechanical grinder is that 60-320 rpm grinds pre-composition, so that premix
Piezoelectric ceramics powder particles refinement in object, while piezoelectric ceramic powder being embedded in conducting polymer, it obtains that piezopolymer is blended；
(3) conventional anilox coating method is used, the revolving speed of the anilox roll applicator roll is 1rpm, and piezo-polymeric will be blended
Object is coated uniformly on the steel disc surface that surface clean is crossed, and forms piezoelectric ceramic piece using 600 DEG C of high temperature sinterings；
(4) another layer of electrode layer graphite electrode is prepared in the piezoelectric ceramics surface screen-printed, then silica is molten
Glue applies its surface, dry under 22Mpa further at 300 DEG C of super critical condition, and piezoelectric sheet surface is made to form holey
Absorb sound aerogel layer, and further sintering forms the piezoelectric ceramic piece that can collect noise power generation.
By test, the conversion ratio that sound can be converted into electric energy reaches 82%.
Embodiment 2
It (1) is 0.5mm lead meta-columbute powder and 1.2 mass parts SP-4310 by 8.5 mass parts polypyrroles, 2.1 mass parts partial sizes
Dispersion 15min is mixed in a high speed mixer, and the revolving speed of high-speed mixer is 800rpm, obtains pre-composition；
(2) method for using mechanical lapping, the revolving speed of mechanical grinder is that 120 rpm grind pre-composition, so that pre-composition
In piezoelectric ceramics powder particles refinement, while by piezoelectric ceramic powder be embedded in conducting polymer in, obtain be blended piezopolymer；
(3) conventional anilox coating method is used, the revolving speed of the anilox roll applicator roll is 1.6rpm, and piezoelectricity will be blended and gather
It closes object and is coated uniformly on the steel disc surface that surface clean is crossed, form piezoelectric ceramic piece using 750 DEG C of high temperature sinterings；
(4) another layer of aluminium electrode is prepared in the piezoelectric ceramics surface screen-printed, then silicon dioxide gel is applied it
Surface, it is dry under 26Mpa further at 350 DEG C of super critical condition, so that piezoelectric sheet surface is formed the sound absorption airsetting of holey
Glue-line, further sintering forms the piezoelectric ceramic piece that can collect noise power generation.
By test, the conversion ratio that sound can be converted into electric energy reaches 70%.
Embodiment 3
It (1) is the modified lead zirconate titanate powder of 0.7mm and 2.3 mass parts by 9.1 mass parts polyacetylene powder, 3.5 mass parts partial sizes
SP-4310 mixes dispersion 18min in a high speed mixer, and the revolving speed of high-speed mixer is 1000 rpm, obtains pre-composition；
(2) method for using mechanical lapping, the revolving speed of mechanical grinder is that 220 rpm grind pre-composition, so that pre-composition
In piezoelectric ceramics powder particles refinement, while by piezoelectric ceramic powder be embedded in conducting polymer in, obtain be blended piezopolymer；
(3) conventional anilox coating method is used, the revolving speed of the anilox roll applicator roll is 2.8rpm, and piezoelectricity will be blended and gather
It closes object and is coated uniformly on the steel disc surface that surface clean is crossed, form piezoelectric ceramic piece using 820 DEG C of high temperature sinterings；
(4) another layer of silver electrode is prepared in the piezoelectric ceramics surface screen-printed, then silicon dioxide gel is applied it
Surface, it is dry under 28Mpa further at 380 DEG C of super critical condition, so that piezoelectric sheet surface is formed the sound absorption airsetting of holey
Glue-line, further sintering forms the piezoelectric ceramic piece that can collect noise power generation.
By test, the conversion ratio that sound can be converted into electric energy reaches 85%.
Embodiment 4
It (1) is 0.8mm lead meta-columbute powder and 2.7 mass parts SP-9810 by 9.3 mass parts polythiophenes, 3.2 mass parts partial sizes
Dispersion 21min is mixed in a high speed mixer, and the revolving speed of high-speed mixer is 1000 rpm, obtains pre-composition；
(2) method for using mechanical lapping, the revolving speed of mechanical grinder is that 280 rpm grind pre-composition, so that pre-composition
In piezoelectric ceramics powder particles refinement, while by piezoelectric ceramic powder be embedded in conducting polymer in, obtain be blended piezopolymer；
(3) conventional anilox coating method is used, the revolving speed of the anilox roll applicator roll is 4.8rpm, and piezoelectricity will be blended and gather
It closes object and is coated uniformly on the steel disc surface that surface clean is crossed, form piezoelectric ceramic piece using 800 DEG C of high temperature sinterings；
(4) another layer of platinum electrode is prepared in the piezoelectric ceramics surface screen-printed, then silicon dioxide gel is applied it
Surface, it is dry under 35Mpa further at 400 DEG C of super critical condition, so that piezoelectric sheet surface is formed the sound absorption airsetting of holey
Glue-line, further sintering forms the piezoelectric ceramic piece that can collect noise power generation.
By test, the conversion ratio that sound can be converted into electric energy reaches 84%.
Embodiment 5
It (1) is that 1mm lead niobate barium-lithium powder and 3 mass parts SP-1800 exist by 10 mass parts polyacetylene powder, 5 mass parts partial sizes
Dispersion 25min is mixed in high-speed mixer, the revolving speed of high-speed mixer is 1200 rpm, obtains pre-composition；
(2) method for using mechanical lapping, the revolving speed of mechanical grinder are 60-320 rpm, pre-composition are ground, so that in advance
Piezoelectric ceramics powder particles refinement in mixed object, while piezoelectric ceramic powder being embedded in conducting polymer, it obtains that piezo-polymeric is blended
Object；
(3) conventional anilox coating method is used, the revolving speed of the anilox roll applicator roll is 5rpm, and piezo-polymeric will be blended
Object is coated uniformly on the steel disc surface that surface clean is crossed, and forms piezoelectric ceramic piece using 900 DEG C of high temperature sinterings；
(4) in one layer of gold electrode material of the piezoelectric ceramics surface screen-printed system, then silicon dioxide gel applied it
Surface, it is dry under 40Mpa further at 400 DEG C of super critical condition, so that piezoelectric sheet surface is formed the sound absorption airsetting of holey
Glue-line, further sintering forms the piezoelectric ceramic piece that can collect noise power generation.
By test, the conversion ratio that sound can be converted into electric energy reaches 76%.
Claims (10)
1. a kind of preparation method by collecting the piezoelectric ceramic piece of noise power generation, it is characterized in that piezoelectric material is prefabricated into thin
Then piece prepares silica network on it, by further sinter molding, obtain noise power generation piezoelectric ceramic piece,
The specific method is as follows:
(1) by 8-10 mass parts conducting polymer powder, 1.5-5 mass parts piezoelectric ceramic powder and 0.5-3 mass parts dispersing agent in height
Dispersion 10-25min is mixed in fast mixing machine, obtains pre-composition；
(2) method for using mechanical lapping, grinds pre-composition, so that the piezoelectric ceramics powder particles in pre-composition refine, simultaneously will
Piezoelectric ceramic powder is embedded in conducting polymer, obtains polymer blend；
(3) polymer blend is coated uniformly on the steel disc surface that surface clean is crossed, is formed using 600-900 DEG C of high temperature sintering
Piezoelectric ceramic piece；
(4) another layer of electrode layer is prepared in piezoelectric ceramic piece surface screen-printed, then silicon dioxide gel is applied into its surface, into
One step is dry under 300-400 DEG C of super critical condition, 22-40Mpa, and piezoelectric sheet surface is made to form the sound absorption airsetting of holey
Glue-line, further sintering forms the piezoelectric ceramic piece that can collect noise power generation.
2. a kind of preparation method by collecting the piezoelectric ceramic piece of noise power generation according to claim 1, it is characterised in that:
The mechanical milling method are as follows: any one in ball-milling method, vibro-grinding method；
3. a kind of preparation method by collecting the piezoelectric ceramic piece of noise power generation according to claim 1, it is characterised in that:
The conducting polymer is one or more of polyaniline, polypyrrole, polythiophene and polyacetylene.
4. a kind of preparation method by collecting the piezoelectric ceramic piece of noise power generation according to claim 1, it is characterised in that:
The piezoelectric ceramic powder is barium titanate powder, lead zirconate titanate powder, modified lead zirconate titanate powder, lead meta-columbute powder, lead niobate barium-lithium powder, changes
Property metatitanic acid lead powder, the piezoelectric coefficient d 33 of piezoelectric ceramic powder is more than or equal to 20pC/N, and the partial size of the piezoelectric ceramic powder is 0.1-
1mm。
5. a kind of preparation method by collecting the piezoelectric ceramic piece of noise power generation according to claim 1, it is characterised in that:
The dispersing agent is one of SP-4330, SP-4310, SP-9810, SP-1800.
6. a kind of preparation method by collecting the piezoelectric ceramic piece of noise power generation according to claim 1, it is characterised in that:
The revolving speed of the high-speed mixer is 600-1200 rpm.
7. a kind of preparation method by collecting the piezoelectric ceramic piece of noise power generation according to claim 1, it is characterised in that:
The revolving speed of the mechanical grinder is 60-320 rpm.
8. a kind of preparation method by collecting the piezoelectric ceramic piece of noise power generation according to claim 1, it is characterised in that:
The coating method is reticulate pattern roller coating method, and the revolving speed of the anilox roll applicator roll is 1-5rpm.
9. a kind of preparation method by collecting the piezoelectric ceramic piece of noise power generation according to claim 1, it is characterised in that:
The material of the electrode layer is graphite electrode, aluminium electrode, silver electrode, platinum electrode or gold electrode.
10. a kind of piezoelectric ceramic piece by collecting noise power generation, it is characterised in that: the piezoelectric ceramic piece is by claim 1-
The piezoelectric ceramic piece that any one of 9 the methods are prepared.
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