CN107910434A - A kind of preparation method of shearing-type piezoelectric fibre composite material - Google Patents
A kind of preparation method of shearing-type piezoelectric fibre composite material Download PDFInfo
- Publication number
- CN107910434A CN107910434A CN201711112739.1A CN201711112739A CN107910434A CN 107910434 A CN107910434 A CN 107910434A CN 201711112739 A CN201711112739 A CN 201711112739A CN 107910434 A CN107910434 A CN 107910434A
- Authority
- CN
- China
- Prior art keywords
- piezoelectric
- composite material
- epoxy resin
- shearing
- fibre composite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 124
- 239000000835 fiber Substances 0.000 title claims abstract description 116
- 238000002360 preparation method Methods 0.000 title claims abstract description 33
- 239000000919 ceramic Substances 0.000 claims abstract description 58
- 239000003822 epoxy resin Substances 0.000 claims abstract description 54
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 54
- 239000004744 fabric Substances 0.000 claims abstract description 49
- NKZSPGSOXYXWQA-UHFFFAOYSA-N dioxido(oxo)titanium;lead(2+) Chemical compound [Pb+2].[O-][Ti]([O-])=O NKZSPGSOXYXWQA-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 20
- 150000001875 compounds Chemical class 0.000 claims description 10
- 229920005989 resin Polymers 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 5
- 238000005215 recombination Methods 0.000 claims description 3
- 230000006798 recombination Effects 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 2
- IWXBAFPAYLDYOJ-UHFFFAOYSA-N [Pb].[Zr].[Ti] Chemical compound [Pb].[Zr].[Ti] IWXBAFPAYLDYOJ-UHFFFAOYSA-N 0.000 claims 1
- 239000012467 final product Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 38
- 238000012360 testing method Methods 0.000 description 17
- 230000010287 polarization Effects 0.000 description 16
- 230000000694 effects Effects 0.000 description 11
- 238000006073 displacement reaction Methods 0.000 description 8
- 230000005684 electric field Effects 0.000 description 8
- 230000003044 adaptive effect Effects 0.000 description 5
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 5
- 238000010008 shearing Methods 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 229920002799 BoPET Polymers 0.000 description 2
- 239000005041 Mylar™ Substances 0.000 description 2
- 241000251737 Raja Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001453 impedance spectrum Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229920003319 Araldite® Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000002305 electric material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 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 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- H10N30/702—
-
- 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
- H10N30/80—Constructional details
- H10N30/85—Piezoelectric or electrostrictive active materials
- H10N30/852—Composite materials, e.g. having 1-3 or 2-2 type connectivity
Abstract
The invention discloses a kind of preparation method of shearing-type piezoelectric fibre composite material, comprise the following steps：The one side of the polarized lead titanate piezoelectric ceramics piece of through-thickness is cut, forms evenly distributed piezoelectric fabric；Epoxy resin is filled in fibre gap and is cured, obtains the piezoelectric fabric filled with epoxy resin；The one side opposite with cut surface of lead titanate piezoelectric ceramics piece is thinned, obtains lead titanate piezoelectric ceramics epoxy resin composite bed；In the upper and lower surface epoxy resin composite and flexible interdigited electrode of lead titanate piezoelectric ceramics epoxy resin composite bed, the flexible interdigited electrode of upper and lower surface is symmetrical in minute surface, and the finger portion of flexible interdigited electrode is parallel with piezoelectric fabric；Epoxy resin is cured, to obtain the final product.This method technique is simple, and gained piezoelectric fibre composite material good integrity, piezoelectric fabric are clear, have certain flexibility, can resist flexural deformation, and electric property, strain property and driveability are good.
Description
Technical field
The present invention relates to technical field of piezoelectric materials, and in particular to a kind of preparation side of shearing-type piezoelectric fibre composite material
Method.
Background technology
Now widely used piezoelectric ceramics and including d33Piezoelectric ceramics including type piezoelectric fibre composite material is compound
Material is all based on the axial piezoelectric effect of piezoelectric ceramics, that is, acts on driving electric field direction and the polarization of ceramics of piezoelectric ceramics
Direction is parallel, and piezoelectric ceramics is produced along polarization direction (d33) or perpendicular to polarization direction (d31) deformation, as shown in figure 21.Remove
Axial piezoelectric effect, including PZT (piezoelectric ceramic transducer, lead titanate piezoelectric ceramics),
BaTiO3Piezoceramic material Deng including also has a kind of shearing piezoelectric effect, i.e., when extra electric field direction and its polarization direction
When vertical, then piezoelectric ceramics can produce a pure shear (d15) deformation, as shown in figure 22.Pressure based on the work of axial piezoelectric effect
When electric material is applied to vibration suppression or self adaptive control, piezoelectric and device are usually directly adhered to agent structure table
Face, is controlled main structure by the extensional deformation pattern of piezoelectric.The type of drive of this surface mount is most obvious
A shortcoming be must assure that between piezoelectric and main structure and bond close, be otherwise subject to the impact of external load to make
Used time is easy to peel off.
Nineteen ninety-five, Sun and Zhang propose a kind of new adaptive structure, and piezoelectric ceramics core plate is in upper and lower two panels master
Among body structural panel, wherein the piezoelectric ceramics polarization direction of core is length direction, and driving electric field applies along its thickness direction,
Main structure is controlled by the detrusion pattern of piezoelectric under electric field action.Since piezoelectric is located at main body
Structural core, external load influence it smaller.Further simulation is found, either under identical electric field action or identical machine
Under the effect of tool load, the stress level in shear mode adaptive structure will be than the stress level of stretching mode adaptive structure
It is small.
At present, the main application potential of shear mode piezoelectric concentrates on vibration control field, and correlative study includes master
Dynamic vibration control, passive vibration control and main passive vibration control, and study and show that shear mode piezoelectric has preferably
Vibration suppressioning effect, or even under certain condition relative to its additional damping of stretching mode piezoelectric and vibration damping amplitude more
It is high.
Although the piezoelectric ceramics of shear mode suffered stress ratio stretching mode in adaptive structure is small, ceramic material
Brittleness still limits its application range, especially for the agent structure of the complicated shapes such as curved surface.It is related for such case
Researcher proposes the d of following two various configurations15Type piezoelectric fibre composite material.
Raja proposed a kind of d that can realize shear mode work in 200815Type piezoelectric fibre composite material.With
d33Type piezoelectric fibre composite material is similar, this d15Type piezoelectric fibre composite material is equally by rectangular piezoelectric ceramic fiber, tree
The flaky composite material of aliphatic radical body and flexible copper electrode composition, it is flexible to inherit it.It polarizes carries out along fiber width direction, on
Bottom electrode opposite polarity, electric field apply along fiber thickness direction, realize the shearing work pattern of integral material.But the structure
Composite material needs the fiber ordered arrangement that will have been polarized and is bonded together in preparation process, the flat shape of fiber in alignment processes
Whether degree and polarization direction can strictly factor can influence the driving of integral material in the horizontal direction etc. according to design requirement
Performance.
And it refer to the d of another configuration in the paper of Kranz15Type piezoelectric fibre composite material.It is different from Raja
It is this d15Type piezoelectric fibre composite material is prepared by polarized piezoelectric ceramic piece processing along its length, edge of polarizing
Fibre length direction, electric field still apply along fiber thickness direction.Since using whole piece piezoelectric ceramic piece as raw material, which protects
Uniformity of the polarization direction of ceramic fibre on fibre length direction has been demonstrate,proved, but in fibre length direction polarization piezoelectric ceramics
When need very high polarizing voltage, thus the structure is suitable only for preparing small sample in laboratory, it is difficult to practical application.
The content of the invention
For the deficiency and defect mentioned in background above technology, it is an object of the present invention to provide a kind of shearing-type pressure
The preparation method of electric fibrous composite, this method technique is simple, can be realized with the polarized piezoelectricity of thickness direction by this method
Piezoelectric fibre composite material is prepared for ceramic base material in potsherd, and gained piezoelectric fibre composite material good integrity, piezoelectricity are fine
Dimension marshalling, have certain flexibility, can resist flexural deformation, and has good electric property, strain property and drive
Dynamic performance.
In order to solve the above technical problems, technical solution proposed by the present invention is：
A kind of preparation method of shearing-type piezoelectric fibre composite material, comprises the following steps：
(1) one side of the polarized lead titanate piezoelectric ceramics piece of through-thickness is cut, is formed evenly distributed
Piezoelectric fabric, has fibre gap between adj acent piezoelectric fiber, the size of cutting is corresponding with the finger spacing of interdigited electrode；
(2) epoxy resin is filled in the fibre gap, and epoxy resin is cured, obtain being filled with asphalt mixtures modified by epoxy resin
The piezoelectric fabric of fat；
(3) the lead titanate piezoelectric ceramics piece one side opposite with cut surface is thinned, obtain lead titanate piezoelectric ceramics-
Epoxy resin composite bed；
(4) answered in the upper and lower surface of lead titanate piezoelectric ceramics-epoxy resin composite bed obtained by step (3) with epoxy resin
Flexible interdigited electrode is closed, ensures that the flexible interdigited electrode of upper and lower surface is symmetrical in minute surface in recombination process, flexible interdigitated
The finger portion of electrode is parallel with piezoelectric fabric and is exactly on the inside of the edge of piezoelectric fabric；
(5) to the epoxy resin between lead titanate piezoelectric ceramics-epoxy resin composite bed and flexible interdigited electrode into
Row cures, up to shearing-type piezoelectric fibre composite material.
For piezoelectric ceramics, polarized by thickness direction polarization and length direction, its effect has marked difference.Due to
The polarizing voltage of PZT piezoelectric ceramics is 2.5kV/mm, and when using length direction polarization, polarizing voltage is very big, easily breakdown
So that material failure；And when using thickness direction polarization, polarizing voltage can be substantially reduced.But existing preparation process can not
Using the polarized piezoelectric ceramics of through-thickness as base material, the polarized shearing-type piezo fiber composite of thickness direction is prepared.This hair
It is bright dexterously to utilize " shearing-filling-be thinned " technique, using the polarized piezoelectric ceramics of thickness direction as base material, shearing is prepared
Type piezo fiber composite, solves in conventional shearing-type piezo fiber composite that piezoelectric fabric can only be polarized in length direction
Problem, and obtain piezo fiber composite good integrity, piezoelectric fabric marshalling, have certain flexibility, can resist
Flexural deformation, has good electric property, strain property and driveability.
As preferable scheme, the lead titanate piezoelectric ceramics piece for PZT-5H piezoelectric ceramics, PZT-5A piezoelectric ceramics,
PZT4 piezoelectric ceramics or PZT8 piezoelectric ceramics.
As preferable scheme, the thickness of the piezoelectric fabric is 180 μm~280 μm.
Further preferably, the thickness of the piezoelectric fabric is 200 μm.
As preferable scheme, the elasticity modulus after the curing of the epoxy resin is 1GPa~4GPa, epoxy resin
Poisson's ratio is 0.15~0.27.
Further preferably, the elasticity modulus after the curing of the epoxy resin is 3GPa~4GPa.
As preferable scheme, in the step (1), the width of piezoelectric fabric is 680 μm~700 μm, fibre gap
Width is 520 μm~540 μm.
As preferable scheme, in the step (3), piezoelectricity is fine in lead titanate piezoelectric ceramics-epoxy resin composite bed
The volume fraction of dimension is 50%~85%.
As preferable scheme, in the step (2), cured temperature is 35 DEG C~45 DEG C.
As preferable scheme, in the step (5), cured temperature is 60 DEG C~70 DEG C.
As preferable scheme, in the step (1), lead titanate piezoelectric ceramics piece polarizes by the following method：
By lead titanate piezoelectric ceramics piece through-thickness, at a temperature of dielectric strength 2kV/mm~3kV/mm, 70 DEG C~90 DEG C, polarization
18min~22min, obtains the polarized lead titanate piezoelectric ceramics piece of through-thickness.
Compared with prior art, the advantage of the invention is that：
(1) for piezoelectric ceramics, polarized by thickness direction polarization and length direction, effect has marked difference.By
It is 2.5kV/mm in the polarizing voltage of PZT piezoelectric ceramics, when using length direction polarization, polarizing voltage is very big, easily hits
When wearing so that material failure, and using thickness direction polarization, polarizing voltage can be substantially reduced.Existing preparation process can not realize
The polarized piezo fiber composite of thickness direction, and this technique can the ingenious polarized piezoelectric ceramics of land productivity thickness direction, prepare
Into piezo fiber composite, solve in conventional shearing-type piezo fiber composite that piezoelectric fabric can only be polarized in length direction
Problem.
(2) present invention prepares piezoelectric fibre composite material by " shearing-filling-be thinned " technique, and technological process is simple, real
It is strong with property；Evenly distributed piezoelectric fabric is formed by the one side cut in lead titanate piezoelectric ceramics piece, in fibre gap
Filling epoxy resin simultaneously cures, and then the another side of lead titanate piezoelectric ceramics piece is thinned, and obtains shearing-type piezoelectricity fibre
Tie up composite material.
(3) piezo fiber composite obtained by this method, has that thickness is thin, good integrity, piezoelectric fabric are clear, tool
There is certain flexibility, flexural deformation can be resisted, and there is good electric property, strain property and driveability.
Brief description of the drawings
Fig. 1 is the product photo of 1 gained piezoelectric fibre composite material of the embodiment of the present invention.
Fig. 2 is the impedance spectrum curve of 1 gained piezoelectric fibre composite material of the embodiment of the present invention.
Fig. 3 is piezoelectric fibre composite material horizontal tangential displacement measurement process schematic.
Fig. 4 be 1 gained piezo-electricity composite material of the embodiment of the present invention electric voltage frequency be 1Hz, voltage magnitude be 270V when
Triangular wave alternating voltage test curve.
Fig. 5 be 1 gained piezo-electricity composite material of the embodiment of the present invention electric voltage frequency be 10Hz, voltage magnitude be 270V when
Triangular wave alternating voltage test curve.
Fig. 6 be 1 gained piezo-electricity composite material of the embodiment of the present invention electric voltage frequency be 1Hz, voltage magnitude be 240V when
Triangular wave alternating voltage test curve.
Fig. 7 be 1 gained piezo-electricity composite material of the embodiment of the present invention electric voltage frequency be 10Hz, voltage magnitude be 240V when
Triangular wave alternating voltage test curve.
Fig. 8 be 1 gained piezo-electricity composite material of the embodiment of the present invention electric voltage frequency be 1Hz, voltage magnitude be 210V when
Triangular wave alternating voltage test curve.
Fig. 9 be 1 gained piezo-electricity composite material of the embodiment of the present invention electric voltage frequency be 10Hz, voltage magnitude be 210V when
Triangular wave alternating voltage test curve.
Figure 10 tip displacements under 0.1Hz simple alternating currents driving for 1 gained piezoelectric fibre composite material of the embodiment of the present invention
Test result.
Figure 11 hands over for 1 gained piezoelectric fibre composite material of the embodiment of the present invention is sinusoidal in 1Hz, 10Hz and 100Hz respectively
The lower tip displacement test result of stream driving.
Figure 12 is the equivalent piezoelectric strain constant correlation curve of 1~4 gained piezoelectric fibre composite material of the embodiment of the present invention.
Figure 13 is the equivalent piezoelectric stress constant correlation curve of 1~4 gained piezoelectric fibre composite material of the embodiment of the present invention.
Figure 14 is the equivalent shear modulus correlation curve of 1~4 gained piezoelectric fibre composite material of the embodiment of the present invention.
Figure 15 is that the equivalent piezoelectric strain constant contrast of 5~10 gained composite material of the embodiment of the present invention 1 and embodiment is bent
Line.
Figure 16 is that the equivalent piezoelectric stress constant contrast of 5~10 gained composite material of the embodiment of the present invention 1 and embodiment is bent
Line.
Figure 17 is the equivalent shear modulus correlation curve of 5~10 gained composite material of the embodiment of the present invention 1 and embodiment.
Figure 18 is that the equivalent piezoelectric strain constant contrast of 11~14 gained composite material of the embodiment of the present invention 1 and embodiment is bent
Line.
Figure 19 is that the equivalent piezoelectric stress constant contrast of 11~14 gained composite material of the embodiment of the present invention 1 and embodiment is bent
Line.
Figure 20 is the equivalent shear modulus correlation curve of 11~14 gained composite material of the embodiment of the present invention 1 and embodiment.
Figure 21 is the axial piezoelectric effect schematic diagram of piezoelectric ceramics.
Figure 22 is the shearing piezoelectric effect schematic diagram of piezoelectric ceramics.
Embodiment
For the ease of understanding the present invention, the present invention is made below in conjunction with Figure of description and preferred embodiment more complete
Face, meticulously describe, but protection scope of the present invention is not limited to embodiment in detail below.
Unless otherwise defined, all technical terms used hereinafter and the normally understood implication of those skilled in the art
It is identical.Technical term used herein is intended merely to the purpose of description specific embodiment, is not intended to the limitation present invention
Protection domain.
Unless otherwise specified, various raw material, reagent, the instrument and equipment etc. used in the present invention can pass through city
Field is commercially available or can be prepared by existing method.
Embodiment 1：
By PZT-5H piezoelectric ceramic piece through-thickness, at a temperature of dielectric strength 2.5kV/mm, 80 DEG C, polarize 20min,
Obtain the polarized lead titanate piezoelectric ceramics piece of through-thickness；The one side of lead titanate piezoelectric ceramics piece after polarization is thick
The blade spent for 500 μm is cut, and forms more evenly distributed piezoelectric fabrics, the width of piezoelectric fabric is 690 μm, thickness
For 200 μm, there is fibre gap, the width of fibre gap is 530 μm between adjacent piezoelectric fabric.
In fibre gap fill epoxy resin (commercial product code is Araldite 2020), then at a temperature of 40 DEG C into
Row cures, and the elasticity modulus of epoxy resin is 3.38GPa after curing, its Poisson's ratio is 0.27, obtains being filled with fibre gap
The piezoelectric fabric of epoxy resin.
The one side opposite with cut surface of lead titanate piezoelectric ceramics piece is thinned, obtains lead zirconate titanate piezoelectric pottery
Porcelain-epoxy resin composite bed, the volume fraction of piezoelectric fabric is in gained lead titanate piezoelectric ceramics-epoxy resin composite bed
56.6%.
It is interdigital with epoxy resin composite and flexible in the upper and lower surface of gained lead titanate piezoelectric ceramics-epoxy resin composite bed
Shape electrode, ensures that the flexible interdigited electrode of upper and lower surface is symmetrical in minute surface in recombination process, and the finger of flexible interdigited electrode
Portion is parallel with piezoelectric fabric.
At 65 DEG C, under appropriate pressure, to lead titanate piezoelectric ceramics-epoxy resin composite bed and flexible interdigited electrode
Between epoxy resin cured, up to shearing-type piezoelectric fibre composite material.
The product photo of gained shearing-type piezoelectric fibre composite material is as shown in Figure 1.As seen from Figure 1, which answers
Condensation material good integrity, piezoelectric fabric are clear, and have certain flexibility.To the electricity of the shearing-type piezoelectric fibre composite material
Performance, strain property and driveability are tested.
The impedance spectrum curve of piezoelectric fibre composite material is as shown in Fig. 2, from Figure 2 it can be seen that the piezoelectric fibre composite material
Resonance spectrum appear near 5.6MHz and 13.4MHz.
Horizontal tangential displacement to the piezoelectric fibre composite material is tested, and obtains tangential displacement and the relation of voltage,
Choose aluminium oxide ceramics disk to be placed in being tested on vibration-free tables as fixed pan, its test process is as shown in Figure 3.Composite wood
Expect electric voltage frequency be 1Hz, voltage magnitude be 270V when triangular wave alternating voltage test condition under test result such as Fig. 4 institutes
Show, electric voltage frequency be 10Hz, voltage magnitude be 270V when test result as shown in figure 5, electric voltage frequency be 1Hz, voltage
Test result when amplitude is 240V as shown in fig. 6, electric voltage frequency be 10Hz, test result of voltage magnitude when being 240V be as schemed
Shown in 7, test result when electric voltage frequency 1Hz, voltage magnitude are 210V as shown in figure 8, electric voltage frequency be 10Hz, voltage amplitude
Be worth for 210V when test result it is as shown in Figure 9.As can be seen that the horizontal tangential of piezoelectric fibre composite material from Fig. 4-Fig. 9
The relation of displacement and driving voltage shows certain hysteresis.
Gained piezoelectric fibre composite material and upper and lower surface Mylar films (mylar film) are combined into shearing cantilever beam,
Its tip displacement is measured under sinusoidal voltage driving, measurement result when electric voltage frequency is 0.1Hz is as shown in Figure 10, voltage frequency
Measurement result when rate is respectively 1Hz, 10Hz and 100Hz is as shown in figure 11.It can be seen that from Figure 10 and Figure 11 with driving electricity
The decline of voltage-frequency rate, the tip displacement of piezoelectric fibre composite material increase, and the test result under wherein 0.1Hz is significantly larger than other
Frequency.
Embodiment 2：
Preparation method is same as Example 1, and simply the thickness of piezoelectric fabric is 180 μm, and it is compound to obtain shearing-type piezoelectric fabric
Material, obtains the effective material parameters of the piezoelectric fibre composite material by way of numerical computations.
Embodiment 3：
Preparation method is same as Example 1, and simply the thickness of piezoelectric fabric is 240 μm, and it is compound to obtain shearing-type piezoelectric fabric
Material, obtains the effective material parameters of the piezoelectric fibre composite material by way of numerical computations.
Embodiment 4：
Preparation method is same as Example 1, and simply the thickness of piezoelectric fabric is 280 μm, and it is compound to obtain shearing-type piezoelectric fabric
Material, obtains the effective material parameters of the piezoelectric fibre composite material by way of numerical computations.
The effective material parameters curve of piezoelectric fibre composite material obtained by embodiment 1-4 is drawn, its equivalent piezoelectric strain is normal
NumberEquivalent piezoelectric stress constantAnd equivalent shear modulusRespectively as shown in Figure 12, Figure 13 and Figure 14.Can by Figure 12
See, under identical piezoelectric fabric depth information, with the increase of piezoelectric fabric volume fraction, the equivalent piezoelectric strain of composite material
ConstantIt is almost linear to be incremented by.
And the equivalent piezoelectric stress constant of composite materialAnd equivalent shear modulusWith the increased change of fiber volume
Trend then shows non-linear.When fiber volume fraction increases to 0.5 from 0,WithIncrease to 2.02C/m from 0 respectively2
And 7.14GPa, and when fiber volume fraction continues to increase to 1,WithIncrease respectively to 10.76C/m2With
16.22GPa.In the case where fiber volume fraction is more than 0.5, composite material is lifted by continuing to improve fiber volume fraction
The effect of overall piezoelectric property is more notable.The equivalent piezoelectric property of the different piezoelectric fibre composite material of piezoelectric fabric thickness with
The changing rule of volume fraction is similar with the composite material that fiber thickness described above is 200 μm.But higher fiber volume fraction
Number means that the volume fraction of resin matrix in composite material reduces, the flexible reduction of composite material.So piezoelectric fabric is compound
In material, the volume fraction of fiber should be controlled between 0.5 to 0.85.Under the conditions of same fiber volume fraction, with piezoelectricity
The increase of fiber thickness, composite materialWithSlightly lifted.This is because the increase of fiber thickness causes
Relative thickness of the PZT/ epoxy resin in integral material increases, the overall accounting increase of piezoelectric phase in composite material, therefore piezoelectricity
Performance is better.But the lifting limited extent of composite material piezoelectric property.Fiber thickness is 280 μm of composite material
With4.2%, 16.2% and 11.5% has only been respectively increased on the basis of fiber thickness is 180 μm of composite material.Consider
The axial uniform electric field intensity and its region accounting produced in the composite to finger electrode subtracts with the increase of fiber thickness
It is few, increase piezoelectric fabric thickness caused by composite material overall stiffness become larger and the problems such as preparation process, piezoelectric fabric is multiple
The thickness of fiber is optimal at 200 μm or so in condensation material.
Embodiment 5：
Preparation method is same as Example 1, and simply the elasticity modulus of epoxy resin is 0.5GPa, obtains shearing-type piezoelectric fabric
Composite material, obtains the effective material parameters of the piezoelectric fibre composite material by way of numerical computations.
Embodiment 6：
Preparation method is same as Example 1, and simply the elasticity modulus of epoxy resin is 1GPa, obtains shearing-type piezoelectric fabric and answers
Condensation material, obtains the effective material parameters of the piezoelectric fibre composite material by way of numerical computations.
Embodiment 7：
Preparation method is same as Example 1, and simply the elasticity modulus of epoxy resin is 1.5GPa, obtains shearing-type piezoelectric fabric
Composite material, obtains the effective material parameters of the piezoelectric fibre composite material by way of numerical computations.
Embodiment 8：
Preparation method is same as Example 1, and simply the elasticity modulus of epoxy resin is 2GPa, obtains shearing-type piezoelectric fabric and answers
Condensation material, obtains the effective material parameters of the piezoelectric fibre composite material by way of numerical computations.
Embodiment 9：
Preparation method is same as Example 1, and simply the elasticity modulus of epoxy resin is 3GPa, obtains shearing-type piezoelectric fabric and answers
Condensation material, obtains the effective material parameters of the piezoelectric fibre composite material by way of numerical computations.
Embodiment 10：
Preparation method is same as Example 1, and simply the elasticity modulus of epoxy resin is 3.38GPa, obtains shearing-type piezoelectricity fibre
Composite material is tieed up, the effective material parameters of the piezoelectric fibre composite material are obtained by way of numerical computations.
The equivalent piezoelectric strain constant of 5~10 gained composite material of embodiment 1 and embodimentEquivalent piezoelectric stress is normal
NumberAnd equivalent shear modulusWith the change curve of epoxy resin elasticity modulus respectively as shown in Figure 15, Figure 16 and Figure 17.
As seen from Figure 15, with the increase of epoxy resin elasticity modulus, the equivalent piezoelectric strain constant of composite materialDrastically raise,
But the equivalent piezoelectric strain constant when resin modulus increases to 1GPa or soContinue the amplitude of increase within 1.4%, almost
Increase no longer as resin modulus increases.By Figure 16 and Figure 17 as it can be seen that equivalent piezoelectric stress constantAnd equivalent shear modulusIncrease with the increase of resin modulus, when resin modulus increases to 3GPa from 1GPa, both increase 92.4% respectively
With 81.0%.Therefore, its piezoelectricity can be improved by selecting the resin of larger modulus to prepare piezoelectric fibre composite material for raw material
Energy.
Embodiment 11：
Preparation method is same as Example 1, and simply the Poisson's ratio of epoxy resin is 0.15, and it is compound to obtain shearing-type piezoelectric fabric
Material, obtains the effective material parameters of the piezoelectric fibre composite material by way of numerical computations.
Embodiment 12：
Preparation method is same as Example 1, and simply the Poisson's ratio of epoxy resin is 0.2, and it is compound to obtain shearing-type piezoelectric fabric
Material, obtains the effective material parameters of the piezoelectric fibre composite material by way of numerical computations.
Embodiment 13：
Preparation method is same as Example 1, and simply the Poisson's ratio of epoxy resin is 0.25, and it is compound to obtain shearing-type piezoelectric fabric
Material, obtains the effective material parameters of the piezoelectric fibre composite material by way of numerical computations.
Embodiment 14：
Preparation method is same as Example 1, and simply the Poisson's ratio of epoxy resin is 0.27, and it is compound to obtain shearing-type piezoelectric fabric
Material, obtains the effective material parameters of the piezoelectric fibre composite material by way of numerical computations.
The equivalent piezoelectric strain constant of 11~14 gained composite material of embodiment 1 and embodimentEquivalent piezoelectric stress is normal
NumberAnd equivalent shear modulusWith the change curve of epoxy resin Poisson's ratio respectively as shown in Figure 18, Figure 19 and Figure 20.By
Figure 18 as it can be seen that when epoxy resin Poisson's ratio be 0.2 when, the equivalent piezoelectric strain constant of piezoelectric fibre composite materialHave most
Big value, but the gap between maxima and minima is very small, is only 0.1%.It can be seen that from Figure 19 and Figure 20 with epoxy
The increase of resin Poisson's ratio, the equivalent piezoelectric strain constant of composite materialAnd equivalent shear modulusDecline, work as tree
Fat Poisson's ratio from 0.15 increase to 0.25 when, both ranges of decrease are close to 3.4%.Therefore, the less asphalt mixtures modified by epoxy resin of Poisson's ratio is selected
Fat can slightly lift the piezoelectric property of shearing-type piezoelectric fibre composite material.Select high-modulus, the resin-made of low Poisson's ratio standby
Piezoelectric fibre composite material can obtain certain piezoelectric property lifting.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this area
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of preparation method of shearing-type piezoelectric fibre composite material, it is characterised in that comprise the following steps：
(1) one side of the polarized lead titanate piezoelectric ceramics piece of through-thickness is cut, forms evenly distributed piezoelectricity
Fiber, has fibre gap between adj acent piezoelectric fiber；
(2) epoxy resin is filled in the fibre gap, and epoxy resin is cured, obtained filled with epoxy resin
Piezoelectric fabric；
(3) the lead titanate piezoelectric ceramics piece one side opposite with cut surface is thinned, obtains lead titanate piezoelectric ceramics-epoxy
Resin compounded layer；
(4) it is compound soft in the upper and lower surface epoxy resin of lead titanate piezoelectric ceramics-epoxy resin composite bed obtained by step (3)
Property interdigited electrode, ensure that the flexible interdigited electrode of upper and lower surface is symmetrical in minute surface in recombination process, flexible interdigited electrode
Finger portion it is parallel with piezoelectric fabric and be exactly on the inside of the edge of piezoelectric fabric；
(5) epoxy resin between lead titanate piezoelectric ceramics-epoxy resin composite bed and flexible interdigited electrode is consolidated
Change, up to shearing-type piezoelectric fibre composite material.
2. the preparation method of shearing-type piezoelectric fibre composite material according to claim 1, it is characterised in that the zirconium titanium
Lead plumbate piezoelectric ceramic piece is PZT-5H piezoelectric ceramics, PZT-5A piezoelectric ceramics, PZT4 piezoelectric ceramics or PZT8 piezoelectric ceramics.
3. the preparation method of shearing-type piezoelectric fibre composite material according to claim 1, it is characterised in that the piezoelectricity
The thickness of fiber is 180 μm~280 μm.
4. the preparation method of shearing-type piezoelectric fibre composite material according to claim 3, it is characterised in that the piezoelectricity
The thickness of fiber is 200 μm.
5. the preparation method of shearing-type piezoelectric fibre composite material according to claim 1, it is characterised in that the epoxy
Elasticity modulus after the curing of resin is 1GPa~4GPa, and the Poisson's ratio of epoxy resin is 0.15~0.27.
6. the preparation method of shearing-type piezoelectric fibre composite material according to claim 1, it is characterised in that the step
(1) in, the width of piezoelectric fabric is 680 μm~700 μm, and the width of fibre gap is 520 μm~540 μm.
7. the preparation method of shearing-type piezoelectric fibre composite material according to claim 1, it is characterised in that the step
(3) in, the volume fraction of piezoelectric fabric is 50%~85% in lead titanate piezoelectric ceramics-epoxy resin composite bed.
8. the preparation method of shearing-type piezoelectric fibre composite material according to claim 1, it is characterised in that the step
(2) in, cured temperature is 35 DEG C~45 DEG C.
9. the preparation method of shearing-type piezoelectric fibre composite material according to claim 1, it is characterised in that the step
(5) in, cured temperature is 60 DEG C~70 DEG C.
10. according to the preparation method of shearing-type piezoelectric fibre composite material according to any one of claims 1 to 9, its feature
It is, in the step (1), lead titanate piezoelectric ceramics piece polarizes by the following method：
By lead titanate piezoelectric ceramics piece through-thickness, at a temperature of dielectric strength 2kV/mm~3kV/mm, 70 DEG C~90 DEG C,
Polarize 18min~22min, obtains the polarized lead titanate piezoelectric ceramics piece of through-thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711112739.1A CN107910434B (en) | 2017-11-13 | 2017-11-13 | Preparation method of shear type piezoelectric fiber composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711112739.1A CN107910434B (en) | 2017-11-13 | 2017-11-13 | Preparation method of shear type piezoelectric fiber composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107910434A true CN107910434A (en) | 2018-04-13 |
| CN107910434B CN107910434B (en) | 2019-12-13 |
Family
ID=61844808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711112739.1A Active CN107910434B (en) | 2017-11-13 | 2017-11-13 | Preparation method of shear type piezoelectric fiber composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107910434B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110470921A (en) * | 2019-08-14 | 2019-11-19 | 上海卫星工程研究所 | Piezoelectric actuator power output hesitation test macro and test method |
| CN110518115A (en) * | 2019-09-11 | 2019-11-29 | 中南大学 | A kind of preparation method of shearing-type piezo-electricity composite material and its preparation of driver |
| CN111727286A (en) * | 2018-11-26 | 2020-09-29 | 株式会社村田制作所 | Resin structure |
| CN112563406A (en) * | 2020-12-07 | 2021-03-26 | 武汉理工大学 | Axial continuous shear strain piezoelectric fiber composite material and preparation method thereof |
| CN112639418A (en) * | 2018-09-06 | 2021-04-09 | Abb瑞士股份有限公司 | Transducer for non-invasive measurements |
| CN113013319A (en) * | 2021-02-24 | 2021-06-22 | 武汉理工大学 | Low-frequency active vibration suppression system based on integrated structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103208587A (en) * | 2013-04-10 | 2013-07-17 | 中南大学 | Method for preparing piezoelectric fiber composite |
| CN104821372A (en) * | 2015-05-20 | 2015-08-05 | 中南大学 | Shearing-type piezoelectric composite material |
| CN106206933A (en) * | 2016-07-18 | 2016-12-07 | 中南大学 | A kind of interdigitated electrodes piezoelectric fibre composite material and preparation method thereof |
-
2017
- 2017-11-13 CN CN201711112739.1A patent/CN107910434B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103208587A (en) * | 2013-04-10 | 2013-07-17 | 中南大学 | Method for preparing piezoelectric fiber composite |
| CN104821372A (en) * | 2015-05-20 | 2015-08-05 | 中南大学 | Shearing-type piezoelectric composite material |
| CN106206933A (en) * | 2016-07-18 | 2016-12-07 | 中南大学 | A kind of interdigitated electrodes piezoelectric fibre composite material and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112639418A (en) * | 2018-09-06 | 2021-04-09 | Abb瑞士股份有限公司 | Transducer for non-invasive measurements |
| CN111727286A (en) * | 2018-11-26 | 2020-09-29 | 株式会社村田制作所 | Resin structure |
| CN110470921A (en) * | 2019-08-14 | 2019-11-19 | 上海卫星工程研究所 | Piezoelectric actuator power output hesitation test macro and test method |
| CN110518115A (en) * | 2019-09-11 | 2019-11-29 | 中南大学 | A kind of preparation method of shearing-type piezo-electricity composite material and its preparation of driver |
| CN110518115B (en) * | 2019-09-11 | 2021-03-16 | 中南大学 | Preparation method of shear type piezoelectric composite material and preparation of driver of shear type piezoelectric composite material |
| CN112563406A (en) * | 2020-12-07 | 2021-03-26 | 武汉理工大学 | Axial continuous shear strain piezoelectric fiber composite material and preparation method thereof |
| CN113013319A (en) * | 2021-02-24 | 2021-06-22 | 武汉理工大学 | Low-frequency active vibration suppression system based on integrated structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107910434B (en) | 2019-12-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107910434A (en) | A kind of preparation method of shearing-type piezoelectric fibre composite material | |
| Taunaumang et al. | Electromechanical properties of 1‐3 piezoelectric ceramic/piezoelectric polymer composites | |
| CN104821372B (en) | A kind of shearing-type piezo-electricity composite material | |
| Cheng et al. | Single crystal PMN-0.33 PT/epoxy 1-3 composites for ultrasonic transducer applications | |
| Kakimoto et al. | Fabrication of fibrous BaTiO3-reinforced PVDF composite sheet for transducer application | |
| Yi et al. | Structural design and properties of fine scale 2-2-2 PZT/epoxy piezoelectric composites for high frequency application | |
| Ma et al. | Performance enhancement of 1–3 piezoelectric composite materials by alternating current polarising | |
| CN110518115A (en) | A kind of preparation method of shearing-type piezo-electricity composite material and its preparation of driver | |
| DE4017276C2 (en) | ||
| Trindade et al. | Finite element characterization and parametric analysis of the nonlinear behaviour of an actual d 15 shear MFC | |
| CN108428783B (en) | Longitudinal gradient piezoelectric fiber composite material and preparation method thereof | |
| KR20100033824A (en) | System of vibration damping of rotational tubular shaft using embedded mfc | |
| CN112563406B (en) | Axial continuous shear strain piezoelectric fiber composite material and preparation method thereof | |
| Hom et al. | A numerical analysis of relaxor ferroelectric multilayered actuators and 2-2 composite arrays | |
| CN108493324A (en) | A kind of double wafer structure piezoelectric fibre composite material and preparation method thereof | |
| Gu et al. | Temperature-dependent properties of a 1–3 connectivity piezoelectric ceramic–polymer composite | |
| Steinhausen et al. | Clamping of piezoelectric thin films on metallic substrates: influence on the effective piezoelectric modulus d/sub 33 | |
| Yoshida et al. | Electroelastic field concentration by circular electrodes in piezoelectric ceramics | |
| Narita et al. | Electroelastic field concentrations and polarization switching induced by circular electrode at the interface of piezoelectric disk composites | |
| Yuan et al. | Effects of composite layer thickness and driving conditions on the actuating performance of shear piezoelectric fiber composite | |
| JP2022525287A (en) | Piezoelectric material | |
| CN104538545B (en) | Ferroelastic domain switching based large actuating strain piezoelectric actuator | |
| Qin et al. | The study of 1-1-3 piezoelectric composite based on relaxor ferroelectric single crystal | |
| Nelson et al. | High-field behavior of piezoelectric fiber composites | |
| Hayashi et al. | Displacement and polarization switching properties of piezoelectric laminated actuators under bending |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |