CN107123731A - A kind of piezoelectric ceramic piece and preparation method by collecting noise generating - Google Patents
A kind of piezoelectric ceramic piece and preparation method by collecting noise generating Download PDFInfo
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- CN107123731A CN107123731A CN201710273461.XA CN201710273461A CN107123731A CN 107123731 A CN107123731 A CN 107123731A CN 201710273461 A CN201710273461 A CN 201710273461A CN 107123731 A CN107123731 A CN 107123731A
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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
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
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- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/01—Manufacture or treatment
- H10N30/09—Forming piezoelectric or electrostrictive materials
- H10N30/092—Forming composite materials
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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
- H10N30/30—Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
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Abstract
The present invention relates to piezoceramic-polymer field of compound material there is provided a kind of by collecting piezoelectric ceramic piece and the preparation method that noise generates electricity.Piezoelectric is coated in steel disc surface by the present invention, prefabricated flakiness, rigid support and electrode material are used as using steel disc, piezoelectric ceramic piece is formed after hot setting, then silicon dioxide gel is coated on piezoelectric ceramics surface, further dry at supercritical conditions, piezoelectric sheet surface is formed the sound absorption aerogel layer of holey, further sintering, which is formed, can collect the piezoelectric ceramic piece of noise generating.The present invention absorbs noise using outermost aerosil layer, and the vibration that noise is produced efficiently is transmitted into piezoelectric, improves vibration pressure, realizes noise efficiency power generation.Whole material has integrated feature, 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 by collecting the pressure that noise generates electricity
Electroceramics piece and preparation method.
Background technology
The energy is the basis of modern economy social development, and with the extensive application of the energy, people are constantly by improving resource
Service efficiency, taps a new source of energy to meet growing energy demand.Noise be a class cause people irritated or volume it is too strong and
The sound being detrimental to health.Noise pollution be mainly derived from communications and transportation, vehicle blow a whistle, industrial noise, construction, society
Meeting noise such as music hall, loudspeaker, morning market and people's speaks up.Noise also has certain energy, and such as noise reaches
To 160dB jet plane, its acoustical power is about 10kW；Noise reaches 140dB large blower, and its acoustical power is
100W.The noise that other various situations, such as automobile, sound equipment sound source are produced also has very big energy value.Acoustic-electric reforming unit
Acoustic energy in environment electric energy can be converted into, the noise environmental protection in environment can be not only effectively reduced, moreover it is possible to for us
Mobile device the energy is provided, application prospect is boundless.Piezoelectric is widely used converted with pressure and electric signal
Cheng Zhong, the present invention proposes a kind of simple structural composite material using the intrinsic property of piezoelectric, realizes that collecting noise generates electricity
Purpose.
Chinese invention patent application number 201410273384.4 discloses a kind of noise power generator, including be sequentially connected
Sound collecting loudspeaker, sound amplifying device, acoustic-electric reforming unit and modulate circuit plate, wherein, sound amplifying device is provided with chamber
Room, is provided with elastic membrane provided with entrance and exit on chamber, in chamber and sound amplifying device is divided into Helmholtz resonator
And amplitude amplifier, entrance is on Helmholtz resonator, and 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 vibrated when receiving noise relative to sound amplifying device and then drive diaphragm oscillations, the area of elastic membrane, which is more than, to shake
The area of film.
Chinese invention patent application number 201520567228.9 discloses the street lamp that a kind of utilization noise generates electricity.Street lamp profit
Receive the sound wave from different directions with three receivers for being mutually 120 degree of angles, by the vibrations of sound wave, cause piezoelectric membrane to produce
Give birth to direct piezoelectric effect 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 into battery by circuit amplifier, and the electric energy of storage is flowed into by wire
In LED, light is produced by LED, and Transparent lamp shade is projected after being reflected through taper refractive body.Light-emitting device two is terminated with photosensitive biography
Sensor, perceives the conversion of ambient intensity, lamp is lighted in due course shinny at any time.A kind of utilization of the utility model
The street lamp that noise generates electricity, luminous efficiency is higher, uniformity is more preferable, power consumption is more reasonable, environmentally friendly.
Chinese invention patent application number 201410220111.3 discloses a kind of suitable for noise electric organ, passes through novel pressure
Electric material PVD piezoelectric films realize the conversion of noise and electric energy.The design of acoustic-electric transition material is attached to horn-like connect in echelon
The inner side of receiving apparatus, the electric energy that every acoustic-electric switching film is produced is pooled to the circuit amplifier below device, warp by wire
The electric current for crossing amplification is stored into lithium battery, can just be powered when the electric energy of storage is enough for LED.Lithium battery is fully charged
After can change reserve battery.Whole device is additionally provided with two moving fulcrums simultaneously, is easy to receive the sound wave from different directions.
To generate electricity by noise with this to provide electric energy to electrical appliance.The invention has reached the saving energy, makes full use of noise.But
This device is very low to the absorption efficiency of sound wave, and practicality is not strong.
, can only be from list from foregoing invention patent it can be concluded that current noise power generator absorbs the ability of sound wave
One or some directions collect noise, but in actual applications, sonic propagation of making an uproar be from noise source send after to all the winds
Propagate, and run into after barrier it may also happen that reflex.Aerosil is a kind of porous material of rigid support
Material, with very excellent sound absorption function, and its rigid skeleton, it is suitable for the Vibration propagation of sound to base material table
Face, piezoelectric is combined therewith will likely prepare new noise electricity generation material.Therefore, the present invention is respective excellent using material
Point constructs a kind of by collecting the piezoelectric ceramic piece that noise generates electricity.
The content of the invention
Noise can only be collected from single or some directions for current noise power generator, absorb the ability of sound wave,
And it is complicated, the Aided Machine some of complex of component, integrated level is not high.The present invention proposes a kind of by collecting noise generating
Piezoelectric ceramic piece and preparation method, the present invention absorb noise using outermost aerosil layer, and noise is produced
Vibration be efficiently transmitted to piezoelectric, improve vibration pressure, realize noise efficiency power generation.Whole material has integrated spy
Point, is suitable for large-scale continuous production.
To solve the above problems, the present invention uses following technical scheme：
A kind of preparation method by collecting the piezoelectric ceramic piece that noise generates electricity, piezoelectric is prefabricated into thin by the present invention first
Piece, then prepares silica network thereon, by further sinter molding, obtains noise generating piezoelectric ceramic piece,
Specific method is as follows：
（1）By 8-10 mass parts conducting polymers powder, 1.5-5 mass parts piezoelectric ceramic powder and 0.5-3 mass parts dispersants in height
Scattered 10-25min is mixed in fast mixer, pre-composition is obtained；
（2）Using the method for mechanical lapping, pre-composition is ground so that the piezoelectric ceramics powder particles refinement in pre-composition, simultaneously will
In piezoelectric ceramic powder insertion conducting polymer, obtain that piezopolymer is blended；
（3）Blending piezopolymer is coated uniformly on the steel disc surface that surface clean is crossed, then by 600-900 DEG C of high temperature sintering
Form 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, is entered
One step is dried under 300-400 DEG C of super critical condition, 22-40Mpa, piezoelectric sheet surface is formed the sound absorption airsetting of holey
Glue-line, further sintering, which is formed, can collect the piezoelectric ceramic piece of noise generating.
It is preferred that, the mechanical milling method includes：Any one in ball-milling method, vibro-grinding method；
It is preferred that, described conducting polymer is the one or more in polyaniline, polypyrrole, polythiophene and polyacetylene.
It is preferred that, 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 particle diameter of porcelain powder is 0.1-1mm.
It is preferred that, the dispersant is one kind in SP-4330, SP-4310, SP-9810, SP-1800.
It is preferred that, the rotating speed of the high-speed mixer is 600-1200 rpm.
It is preferred that, the rotating speed of the mechanical grinder is 60-320 rpm.
It is preferred that, the painting method is to use conventional anilox coating method, and the rotating speed of the anilox roll applicator roll is
1-5rpm。
It is preferred that, 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 generating, it is characterized in that there is the above method to prepare.
Existing noise power generator absorbs the ability of sound wave, and noise can only be collected from single or some directions, but
It is that in actual applications, sonic propagation of making an uproar to all the winds is propagated after being sent from noise source, and runs into and may be used also after barrier
Can occur reflex.The present invention proposes a kind of piezoelectric ceramic piece and preparation method by collecting noise generating, 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
Ceramics, is then coated on piezoelectric ceramics surface by silicon dioxide gel, further dries at supercritical conditions, make piezoelectric sheet
Surface forms the sound absorption aerogel layer of holey, and further sintering, which is formed, can collect the piezoelectric ceramic piece of noise generating.This
Invention absorbs noise using outermost aerosil layer, and the vibration that noise is produced efficiently is transmitted into piezoelectric,
Vibration pressure is improved, noise efficiency power generation is realized.Whole material has integrated feature, is suitable for large-scale continuous production.
By the present invention prepare by collect noise generate electricity piezoelectric ceramic piece with present only noise power generator phase
Than being had a clear superiority in terms of high conversion efficiency, environmental stability, cost, input, as shown in table 1.
Table 1：
| Performance indications | Acoustic-electric high conversion efficiency | Environmental stability | Cost | Continuous production |
| The present invention | 70-85% | It is stable | It is low | Can be with |
| Conventional piezoelectric composite | 20-50% | It is unstable | It is relatively low | Cannot |
The present invention is a kind of by collecting piezoelectric ceramic piece and the preparation method that noise generates electricity, compared with prior art, what it was protruded
Feature and excellent effect are：
1st, the technology absorbs noise using outermost aerosil layer, and the vibration that noise is produced efficiently is transmitted to pressure
Electric material, improves vibration pressure, realizes noise efficiency power generation.
2nd, the thin-film material that the present invention is used replaces complicated mechanical structure, planar solves efficient absorption sound wave
Problem, saves material, improves utilization rate.
3rd, rigid support and electrode material are used as using stainless steel substrates so that noise electricity generation material can industrially facilitate
Realize continuous production.
4th, noise electricity generation material prepared by the inventive method, the small, cost of input is low, with significant market application value.
Embodiment
Below by way of embodiment, the present invention is described in further detail, but this should not be interpreted as to the present invention
Scope be only limitted to following example.In the case where not departing from above method thought of the present invention, according to ordinary skill
Various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
（1）It is 0.1mm barium titanate powders and 0.5 mass parts SP-4330 mixed in high speed by 8 mass parts polyanilines, 1.5 mass parts particle diameters
Scattered 10min is mixed in conjunction machine, the rotating speed of the high-speed mixer is 600 rpm, obtains pre-composition；
（2）Using the method for mechanical lapping, the rotating speed of mechanical grinder grinds pre-composition for 60-320 rpm so that in pre-composition
Piezoelectric ceramics powder particles refinement, while by piezoelectric ceramic powder be embedded in conducting polymer in, obtain be blended piezopolymer；
（3）Using conventional anilox coating method, the rotating speed of the anilox roll applicator roll is 1rpm, equal by piezopolymer is blended
It is even to be coated in the steel disc surface that surface clean is crossed, then by 600 DEG C of high temperature sintering formation piezoelectric ceramic pieces；
（4）Another layer of electrode layer graphite electrode is prepared in the piezoelectric ceramics surface screen-printed, then silicon dioxide gel is applied
Its surface is applied, further in 300 DEG C of super critical condition, is dried under 22Mpa, piezoelectric sheet surface is formed the sound absorption of holey
Aerogel layer, further sintering, which is formed, can collect the piezoelectric ceramic piece of noise generating.
By test, the conversion ratio that acoustic energy is converted into electric energy reaches 82%.
Embodiment 2
（1）It is 0.5mm lead meta-columbute powder and 1.2 mass parts SP-4310 in height by 8.5 mass parts polypyrroles, 2.1 mass parts particle diameters
Scattered 15min is mixed in fast mixer, the rotating speed of high-speed mixer is 800rpm, obtains pre-composition；
（2）Using the method for mechanical lapping, the rotating speed of mechanical grinder grinds pre-composition for 120 rpm so that in pre-composition
Piezoelectric ceramics powder particles are refined, while piezoelectric ceramic powder is embedded in conducting polymer, obtain that piezopolymer is blended；
（3）Using conventional anilox coating method, the rotating speed of the anilox roll applicator roll is 1.6rpm, piezopolymer will be blended
The steel disc surface that surface clean is crossed is coated uniformly on, then by 750 DEG C of high temperature sintering formation piezoelectric ceramic pieces；
（4）Another layer of aluminium electrode is prepared in the piezoelectric ceramics surface screen-printed, then silicon dioxide gel is applied into its surface,
Further in 350 DEG C of super critical condition, dried under 26Mpa, piezoelectric sheet surface is formed the sound absorption aerogel layer of holey,
Further sintering, which is formed, can collect the piezoelectric ceramic piece of noise generating.
By test, the conversion ratio that acoustic energy is converted into electric energy reaches 70%.
Embodiment 3
（1）It is that 0.7mm is modified lead zirconate titanate powder and 2.3 mass parts SP- by 9.1 mass parts polyacetylene powder, 3.5 mass parts particle diameters
4310 mix scattered 18min in high-speed mixer, and the rotating speed of high-speed mixer is 1000 rpm, obtains pre-composition；
（2）Using the method for mechanical lapping, the rotating speed of mechanical grinder grinds pre-composition for 220 rpm so that in pre-composition
Piezoelectric ceramics powder particles are refined, while piezoelectric ceramic powder is embedded in conducting polymer, obtain that piezopolymer is blended；
（3）Using conventional anilox coating method, the rotating speed of the anilox roll applicator roll is 2.8rpm, piezopolymer will be blended
The steel disc surface that surface clean is crossed is coated uniformly on, then by 820 DEG C of high temperature sintering formation piezoelectric ceramic pieces；
（4）Another layer of silver electrode is prepared in the piezoelectric ceramics surface screen-printed, then silicon dioxide gel is applied into its surface,
Further in 380 DEG C of super critical condition, dried under 28Mpa, piezoelectric sheet surface is formed the sound absorption aerogel layer of holey,
Further sintering, which is formed, can collect the piezoelectric ceramic piece of noise generating.
By test, the conversion ratio that acoustic energy is converted into electric energy reaches 85%.
Embodiment 4
（1）It is 0.8mm lead meta-columbute powder and 2.7 mass parts SP-9810 in height by 9.3 mass parts polythiophenes, 3.2 mass parts particle diameters
Scattered 21min is mixed in fast mixer, the rotating speed of high-speed mixer is 1000 rpm, obtains pre-composition；
（2）Using the method for mechanical lapping, the rotating speed of mechanical grinder grinds pre-composition for 280 rpm so that in pre-composition
Piezoelectric ceramics powder particles are refined, while piezoelectric ceramic powder is embedded in conducting polymer, obtain that piezopolymer is blended；
（3）Using conventional anilox coating method, the rotating speed of the anilox roll applicator roll is 4.8rpm, piezopolymer will be blended
The steel disc surface that surface clean is crossed is coated uniformly on, then by 800 DEG C of high temperature sintering formation piezoelectric ceramic pieces；
（4）Another layer of platinum electrode is prepared in the piezoelectric ceramics surface screen-printed, then silicon dioxide gel is applied into its surface,
Further in 400 DEG C of super critical condition, dried under 35Mpa, piezoelectric sheet surface is formed the sound absorption aerogel layer of holey,
Further sintering, which is formed, can collect the piezoelectric ceramic piece of noise generating.
By test, the conversion ratio that acoustic energy is converted into electric energy reaches 84%.
Embodiment 5
（1）It is 1mm lead niobate barium-lithium powder and 3 mass parts SP-1800 at a high speed by 10 mass parts polyacetylene powder, 5 mass parts particle diameters
Scattered 25min is mixed in mixer, the rotating speed of high-speed mixer is 1200 rpm, obtains pre-composition；
（2）Using the method for mechanical lapping, the rotating speed of mechanical grinder is 60-320 rpm, grinds 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）Using conventional anilox coating method, the rotating speed of the anilox roll applicator roll is 5rpm, equal by piezopolymer is blended
It is even to be coated in the steel disc surface that surface clean is crossed, then by 900 DEG C of high temperature sintering formation piezoelectric ceramic pieces；
（4）Its surface is applied in described one layer of gold electrode material of piezoelectric ceramics surface screen-printed system, then by silicon dioxide gel,
Further in 400 DEG C of super critical condition, dried under 40Mpa, piezoelectric sheet surface is formed the sound absorption aerogel layer of holey,
Further sintering, which is formed, can collect the piezoelectric ceramic piece of noise generating.
By test, the conversion ratio that acoustic energy is converted into electric energy reaches 76%.
Claims (10)
1. a kind of preparation method by collecting the piezoelectric ceramic piece that noise generates electricity, it is characterized in that piezoelectric is prefabricated into thin
Piece, then prepares silica network thereon, by further sinter molding, obtains noise generating piezoelectric ceramic piece,
Specific method is as follows：
（1）By 8-10 mass parts conducting polymers powder, 1.5-5 mass parts piezoelectric ceramic powder and 0.5-3 mass parts dispersants in height
Scattered 10-25min is mixed in fast mixer, pre-composition is obtained；
（2）Using the method for mechanical lapping, pre-composition is ground so that the piezoelectric ceramics powder particles refinement in pre-composition, simultaneously will
In piezoelectric ceramic powder insertion conducting polymer, obtain that piezopolymer is blended；
（3）Blending piezopolymer is coated uniformly on the steel disc surface that surface clean is crossed, then by 600-900 DEG C of high temperature sintering
Form 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, is entered
One step is dried under 300-400 DEG C of super critical condition, 22-40Mpa, piezoelectric sheet surface is formed the sound absorption airsetting of holey
Glue-line, further sintering, which is formed, can collect the piezoelectric ceramic piece of noise generating.
2. according to claim 1 it is a kind of by collect noise generate electricity piezoelectric ceramic piece preparation method, it is characterised in that：
The mechanical milling method is：Any one in ball-milling method, vibro-grinding method.
3. according to claim 1 it is a kind of by collect noise generate electricity piezoelectric ceramic piece preparation method, it is characterised in that：
Described conducting polymer is the one or more in polyaniline, polypyrrole, polythiophene and polyacetylene.
4. according to claim 1 it is a kind of by collect noise generate electricity piezoelectric ceramic piece preparation method, 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, changed
Property metatitanic acid lead powder, the piezoelectric coefficient d 33 of piezoelectric ceramic powder is more than or equal to 20pC/N, and the particle diameter of the piezoelectric ceramic powder is 0.1-
1mm。
5. according to claim 1 it is a kind of by collect noise generate electricity piezoelectric ceramic piece preparation method, it is characterised in that：
The dispersant is one kind in SP-4330, SP-4310, SP-9810, SP-1800.
6. according to claim 1 it is a kind of by collect noise generate electricity piezoelectric ceramic piece preparation method, it is characterised in that：
The rotating speed of the high-speed mixer is 600-1200 rpm.
7. according to claim 1 it is a kind of by collect noise generate electricity piezoelectric ceramic piece preparation method, it is characterised in that：
The rotating speed of the mechanical grinder is 60-320 rpm.
8. according to claim 1 it is a kind of by collect noise generate electricity piezoelectric ceramic piece preparation method, it is characterised in that：
The painting method is reticulate pattern roller coating method, and the rotating speed of the anilox roll applicator roll is 1-5rpm.
9. according to claim 1 it is a kind of by collect noise generate electricity piezoelectric ceramic piece preparation method, it is characterised in that：
The material of the electrode layer is graphite electrode, aluminium electrode, silver electrode, platinum electrode or gold electrode.
10. it is a kind of by collecting the piezoelectric ceramic piece that noise generates electricity, it is characterised in that：The piezoelectric ceramic piece is by claim 1-
The piezoelectric ceramic piece that any one of 9 methods describeds are prepared.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108911738A (en) * | 2018-07-06 | 2018-11-30 | 西安工业大学 | porous barium titanate piezoelectric ceramics and preparation method thereof |
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| US5043622A (en) * | 1985-06-07 | 1991-08-27 | Hoechst Celanese Corp. | Easily poled 0-3 piezoelectric composites for transducer applications |
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| CN108911738B (en) * | 2018-07-06 | 2021-05-18 | 西安工业大学 | Porous barium titanate piezoelectric ceramic and preparation method thereof |
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