CN107565012A - The preparation method and piezoelectric fibre composite material of piezoelectric fibre composite material - Google Patents
The preparation method and piezoelectric fibre composite material of piezoelectric fibre composite material Download PDFInfo
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- CN107565012A CN107565012A CN201710767267.7A CN201710767267A CN107565012A CN 107565012 A CN107565012 A CN 107565012A CN 201710767267 A CN201710767267 A CN 201710767267A CN 107565012 A CN107565012 A CN 107565012A
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000007772 electrode material Substances 0.000 claims description 4
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- 239000004332 silver Substances 0.000 claims description 4
- 239000002356 single layer Substances 0.000 claims description 4
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- 229910002113 barium titanate Inorganic materials 0.000 description 1
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- NKZSPGSOXYXWQA-UHFFFAOYSA-N dioxido(oxo)titanium;lead(2+) Chemical compound [Pb+2].[O-][Ti]([O-])=O NKZSPGSOXYXWQA-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention provides a kind of preparation method of piezoelectric fibre composite material and piezoelectric fibre composite material, is related to technical field of function materials, and the preparation method of piezoelectric fibre composite material includes：Unpolarized Piezoelectric anisotropy structure is cut along stacking direction, obtains Piezoelectric anisotropy module；Electrode is covered on the cut surface of Piezoelectric anisotropy module and is polarized, the Piezoelectric anisotropy module after being polarized；Piezoelectric anisotropy module after several are polarized is along the direction stacked arrangement perpendicular to cut surface, and the coated polymer glue on adjacent surface, obtains the second laminated construction；Second laminated construction is solidified, Piezoelectric anisotropy structure after being polarized, solve in traditional piezoelectric fibre composite material preparation process, piezoelectric fabric polarization is uneven, cause to be difficult to sufficiently to polarize, so as to reduce the technical problem of the pliability of composite and stability.
Description
Technical field
The present invention relates to technical field of function materials, more particularly, to a kind of preparation method of piezoelectric fibre composite material with
Piezoelectric fibre composite material.
Background technology
Piezo-electricity composite material is a kind of intelligent composite based on the effect that intercoupled between electric energy and mechanical energy, and its is simultaneous
Has the features such as pliability of the excellent piezoelectric property and polymeric matrix of piezoelectric crystal material.
Structures of piezoelectric composite huge number, piezoelectric ceramic fiber composite material is with piezoelectric ceramic fibers and polymer matrix
The advantages that bluk recombination forms, and it had both remained piezoelectric crystal material high sensitivity and high-frequency response, overcomes piezo-electric crystal again
The deficiency that material fragility is big and pliability is poor, and have the characteristics that one-way performance protrudes and designability is strong, it is widely used in
The various fields such as sensing, driving, structure control, monitoring structural health conditions and energy acquisition.
At present, in traditional piezoelectric fibre composite material preparation process, piezoelectric fabric polarization is uneven, causes to be difficult to fully
Polarization, reduce the pliability and stability of composite.
The content of the invention
In view of this, it is an object of the invention to provide a kind of preparation method of piezoelectric fibre composite material and piezoelectric fabric
Composite, to solve in piezoelectric fibre composite material preparation process traditional present in prior art, piezoelectric fabric polarization
It is uneven, cause to be difficult to sufficiently to polarize, so as to reduce the technical problem of the pliability of composite and stability.
In a first aspect, the embodiments of the invention provide a kind of preparation method of piezoelectric fibre composite material, including：
Piezoelectric thin layer and polymer foil are alternately stacked arrangement, and the coated polymer glue on adjacent surface, obtained
First laminated construction；
First laminated construction is solidified, obtains unpolarized Piezoelectric anisotropy structure；
The unpolarized Piezoelectric anisotropy structure is cut along stacking direction, obtains Piezoelectric anisotropy module；
Electrode is covered on the cut surface of the Piezoelectric anisotropy module and is polarized, the Piezoelectric anisotropy mould after being polarized
Block；
By the Piezoelectric anisotropy module after several described polarization along the direction stacked arrangement perpendicular to the cut surface, and
Coated polymer glue on adjacent surface, obtain the second laminated construction；
Second laminated construction is solidified, the Piezoelectric anisotropy structure after being polarized；
Piezoelectric anisotropy structure after the polarization is carried out along perpendicular to the direction of the piezoelectric thin layer and the cut surface
Cutting, the piezoelectric fabric composite bed after being polarized；
Flexible interdigital electrode and the piezoelectric fabric composite bed after the polarization are packaged, obtain piezoelectric fabric composite wood
Material.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the first of first aspect, wherein,
It is described that piezoelectric thin layer and polymer foil are alternately stacked arrangement, and the coated polymer glue on adjacent surface, obtain first
Before laminated construction, in addition to：
Piezoelectric ceramics or piezoelectric monocrystal thin layer are prepared by patterning method or the tape casting, obtain the piezoelectric thin layer.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of second of first aspect, wherein,
It is described that piezoelectric thin layer and polymer foil are alternately stacked arrangement, and the coated polymer glue on adjacent surface, obtain first
Before laminated construction, in addition to：
Thermosetting resin is prepared into by the polymer foil by die pressing.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the third of first aspect, wherein, institute
The outermost layer for stating unpolarized Piezoelectric anisotropy structure is the piezoelectric thin layer.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 4th of first aspect kind, wherein, institute
State and electrode is covered on the cut surface of the Piezoelectric anisotropy module and is polarized, the Piezoelectric anisotropy module after being polarized, tool
Body includes：
One layer of unburned silver electrode is covered on the cut surface of the Piezoelectric anisotropy module, and along perpendicular to the cut surface
Polarized in direction；
The clearing electrode layer after polarization, the Piezoelectric anisotropy module after being polarized.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 5th of first aspect kind, wherein, institute
State by the Piezoelectric anisotropy module after several polarization along the direction stacked arrangement perpendicular to the cut surface, and in neighboar lists
Coated polymer glue on face, the second laminated construction is obtained, is specifically included：
Direction stacked arrangement by the Piezoelectric anisotropy module edge after several described polarization perpendicular to the cut surface, and phase
The polarised direction of Piezoelectric anisotropy module after the adjacent polarization is opposite；
Coated polymer glue on the surface of Piezoelectric anisotropy module after the adjacent polarization, obtain the second lamination knot
Structure.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 6th of first aspect kind, wherein, institute
State and be packaged flexible interdigital electrode and the piezoelectric fabric composite bed after the polarization, obtain piezoelectric fibre composite material it
Before, in addition to：
The flexible interdigital electrode is prepared by single-layer printed circuit plate technique.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 7th of first aspect kind, wherein, institute
The flexible substrate material for stating flexible interdigital electrode is polyimides；
The electrode material of the flexible interdigital electrode is metallic copper.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 8th of first aspect kind, wherein, institute
State and be packaged flexible interdigital electrode and the piezoelectric fabric composite bed after the polarization, obtain piezoelectric fibre composite material, tool
Body includes：
During the encapsulation of piezoelectric fabric composite bed after flexible interdigital electrode and the polarization, the flexibility is kept
The interface of Piezoelectric anisotropy module after the finger center lines of electrodes of interdigital electrode and the adjacent polarization is in one plane；
The two sides of piezoelectric fabric composite bed after the polarization is filled according to mirror symmetrical structure by polymer latex fluid-tight
The flexible interdigital electrode, obtains modular piezoelectric fibre composite material.
Second aspect, the embodiment of the present invention also provide a kind of preparation of the piezoelectric fibre composite material by such as first aspect
Piezoelectric fibre composite material made of method.
Technical scheme provided in an embodiment of the present invention brings following beneficial effect：Piezoelectricity provided in an embodiment of the present invention is fine
In the preparation method and piezoelectric fibre composite material of tieing up composite, the preparation method of piezoelectric fibre composite material includes：First,
Piezoelectric thin layer and polymer foil are alternately stacked arrangement, and the coated polymer glue on adjacent surface, so as to obtain first
Laminated construction, then, the first laminated construction is solidified, afterwards, will non-pole so as to obtain unpolarized Piezoelectric anisotropy structure
The Piezoelectric anisotropy structure of change is cut along stacking direction, Piezoelectric anisotropy module is obtained, then in the cutting of Piezoelectric anisotropy module
Cover and electrode and polarized on face, the Piezoelectric anisotropy module after being polarized, afterwards by several Piezoelectric anisotropies after polarizing
Module and the coated polymer glue on adjacent surface, obtains the second lamination knot along the direction stacked arrangement perpendicular to cut surface
Structure, the second laminated construction is solidified afterwards, the Piezoelectric anisotropy structure after being polarized, then by the Piezoelectric anisotropy after polarization
Structure edge is cut perpendicular to the direction of piezoelectric thin layer and cut surface, the piezoelectric fabric composite bed after being polarized, finally, will
Flexible interdigital electrode is packaged with the piezoelectric fabric composite bed after polarization, piezoelectric fibre composite material is obtained, by will non-pole
The Piezoelectric anisotropy structure of change is cut along stacking direction, forms Piezoelectric anisotropy module, the also cut surface in Piezoelectric anisotropy module
On polarized so as to the Piezoelectric anisotropy module after being polarized, moreover, by several Piezoelectric anisotropy modules after polarizing along hanging down
Directly cut etc. in the direction stacked arrangement of cut surface, and follow-up edge perpendicular to the direction of piezoelectric thin layer and cut surface,
So that the cut surface to polarize is evenly distributed in each piezoelectric fabric composite bed, therefore it is fine to obtain the uniform piezoelectricity that polarizes
Composite bed is tieed up, is cut, polarized and the preparation of piezoelectric fibre composite material etc. by modular mode, realize piezoelectricity
Polarization of the fibrous composite in preparation process is uniform, makes polarization abundant, traditional present in prior art so as to solve
Piezoelectric fibre composite material preparation process in, piezoelectric fabric polarization it is uneven, cause to be difficult to sufficiently to polarize, so as to reduce
The pliability of composite and the technical problem of stability.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages are in specification, claims
And specifically noted structure is realized and obtained in accompanying drawing.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 shows a kind of flow of the preparation method for piezoelectric fibre composite material that the embodiment of the present invention one is provided
Figure；
Fig. 2 shows the flow of the preparation method for another piezoelectric fibre composite material that the embodiment of the present invention two is provided
Figure；
Fig. 3 shown in the piezoelectric fibre composite material that the embodiment of the present invention three is provided, the tool of piezoelectric fabric composite bed
Body structural representation；
Fig. 4 shows the structural representation for the piezoelectric fibre composite material that the embodiment of the present invention three is provided.
Icon：1- piezoelectric thin layers；11- piezoelectric fabrics；2- polymer foils；22- polymer fibers；The unpolarized piezoelectricity of 3-
Composite construction；4- Piezoelectric anisotropy modules；5- cut surfaces；Piezoelectric fabric composite bed after 6- polarization；7- flexibility interdigital electrodes；71-
Upper interdigital electrode；Interdigital electrode under 72-.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with accompanying drawing to the present invention
Technical scheme be clearly and completely described, it is clear that described embodiment is part of the embodiment of the present invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
In piezoelectric fibre composite material preparation process traditional at present, piezoelectric fabric polarization is uneven, causes to be difficult to fully
Polarization, so as to reduce the pliability of composite and stability, based on this, a kind of piezoelectricity provided in an embodiment of the present invention is fine
The preparation method and piezoelectric fibre composite material of composite are tieed up, can solve piezoelectric fabric traditional present in prior art
In composite preparation process, piezoelectric fabric polarization is uneven, causes to be difficult to sufficiently to polarize, so as to reduce composite
The technical problem of pliability and stability.
For ease of understanding the present embodiment, first to a kind of piezoelectric fabric composite wood disclosed in the embodiment of the present invention
The preparation method of material describes in detail with piezoelectric fibre composite material.
Embodiment one：
The preparation method of a kind of piezoelectric fibre composite material provided in an embodiment of the present invention, as shown in figure 1, the piezoelectric fabric
The preparation method of composite includes：
S11：Piezoelectric thin layer and polymer foil are alternately stacked arrangement, and the coated polymer glue on adjacent surface,
Obtain the first laminated construction.
In this step, patterning method or the tape casting can be used to prepare piezoelectric ceramics or piezoelectric monocrystal thin layer, obtain different thickness
The piezoelectric thin layer of degree.Thermosetting resin can be prepared into using die pressing by the polymer foil of different-thickness, and gained is gathered
Compound thin layer be cut into it is consistent with piezoelectric thin layer size, wherein, size includes length and width.
S12：First laminated construction is solidified, obtains unpolarized Piezoelectric anisotropy structure.
As the preferred embodiment of the present embodiment, the outermost layer of unpolarized Piezoelectric anisotropy structure is piezoelectric thin layer.
S13：Unpolarized Piezoelectric anisotropy structure is cut along stacking direction, obtains Piezoelectric anisotropy module.
S14：Electrode is covered on the cut surface of Piezoelectric anisotropy module and is polarized, the Piezoelectric anisotropy mould after being polarized
Block.
S15：Piezoelectric anisotropy module after several are polarized is along the direction stacked arrangement perpendicular to cut surface, and adjacent
Coated polymer glue on surface, obtain the second laminated construction.
S16：Second laminated construction is solidified, the Piezoelectric anisotropy structure after being polarized.
S17：By the Piezoelectric anisotropy structure after polarization along being cut perpendicular to the direction of piezoelectric thin layer and cut surface, obtain
Piezoelectric fabric composite bed after polarization.
S18：Flexible interdigital electrode and the piezoelectric fabric composite bed after polarization are packaged, obtain piezoelectric fabric composite wood
Material.
Wherein, the flexible substrate material of flexible interdigital electrode can be polyimides, the electrode material of flexible interdigital electrode
It can be metallic copper.
Therefore, method simple possible provided in an embodiment of the present invention, it is possible to achieve piezoelectric fabric is uniform in composite
Polarization, strengthen the pliability and stability of composite, the effective preparation efficiency for improving piezoelectric fibre composite material.
Embodiment two：
The preparation method of a kind of piezoelectric fibre composite material provided in an embodiment of the present invention, as shown in Fig. 2 the piezoelectric fabric
The preparation method of composite includes：
S21：Piezoelectric ceramics or piezoelectric monocrystal thin layer are prepared by patterning method or the tape casting, obtain piezoelectric thin layer.
In this step, if piezoelectric ceramics, then with lead titanate piezoelectric ceramics (Pb (Zr1-xTix)O3, abbreviation PZT) and pottery
Porcelain powder is raw material, prepares rectangular shape piezoelectric ceramics using conventional solid-state method, ceramic dimension is 50mm × 30mm × 20mm
(length × width × height), piezoelectric ceramics is cut into piezoelectric thin layer along short transverse, the size of piezoelectric thin layer is 50mm × 20mm
× 0.3mm (length × width x thickness), the sum of piezoelectric thin layer can be 10.
S22：Thermosetting resin is prepared into by polymer foil by die pressing.
For thermosetting resin, using epoxy resin as raw material, epoxy resin adhesive liquid is modulated into using suitable additive,
Use die pressing to be prepared into thickness as 0.1mm polymer foils, by all polymer foils unify cutting be processed into it is thin with piezoelectricity
Layer size is suitable, i.e. 50mm × 20mm (long × wide), and the sum of polymer foil can be 9.
S23：Piezoelectric thin layer and polymer foil are alternately stacked arrangement, and the coated polymer glue on adjacent surface,
Obtain the first laminated construction.
Specifically, the piezoelectric thin layer in step S23 is from top to bottom arranged in order, by the polymer foil in step S22
It is interleaved alternately between adj acent piezoelectric thin layer, and in the two sides of polymer foil and the piezoelectric thin layer face adjacent with polymer foil
Upper uniformly one layer of epoxy resin adhesive liquid of coating.
S24：First laminated construction is solidified, obtains unpolarized Piezoelectric anisotropy structure.
Further, the first laminated construction is subjected to hot-press solidifying, it is unpolarized so as to obtain unpolarized Piezoelectric anisotropy structure
Piezoelectric anisotropy structure can also be 2-2 type Piezoelectric anisotropy structures.
S25：Unpolarized Piezoelectric anisotropy structure is cut along stacking direction, obtains Piezoelectric anisotropy module.
By the 2-2 type Piezoelectric anisotropy structures in step S24, to be cut along vertically stacked orientation, cutting spacing is 1mm,
I.e. obtain size be 20mm × 3.9mm × 1mm (length × width x thickness) 2-2 type Piezoelectric anisotropies module several.
S26：One layer of unburned silver electrode is covered on the cut surface of Piezoelectric anisotropy module, and along perpendicular to the direction of cut surface
Polarized.
By the 2-2 type Piezoelectric anisotropy module layers in step S26 in being coated with unburned silver electrode on cut surface, and in 3kV/
Polarized under mm electric field action.
S27：The clearing electrode layer after polarization, the Piezoelectric anisotropy module after being polarized.
Clearing electrode after polarization, the Piezoelectric anisotropy module after the polarization after being polarized, the Piezoelectric anisotropy module after polarization
Can also be 2-2 type Piezoelectric anisotropy modules.
S28：Piezoelectric anisotropy module after several are polarized is and adjacent along the direction stacked arrangement perpendicular to cut surface
The polarised direction of Piezoelectric anisotropy module after polarization is opposite.
2-2 type Piezoelectric anisotropies module after polarization in step S28 is taken out 10 pieces and carries out heap according to original cutting position
It is folded, wherein, the polarised direction of adjacent 2-2 types Piezoelectric anisotropy module is opposite.
S29：Coated polymer glue on the surface of Piezoelectric anisotropy module after adjacent polarization, obtain the second lamination knot
Structure.
As the preferred embodiment of the present embodiment, one layer of epoxy resin adhesive liquid is uniformly coated on adjacent cut surface.
S30：Second laminated construction is solidified, the Piezoelectric anisotropy structure after being polarized.
Specifically, the second laminated construction is subjected to molded curing, the Piezoelectric anisotropy structure after being polarized, the pressure after polarization
Electric composite construction can also be the 2-2 type Piezoelectric anisotropy structures of polarization, and its size can be 20 × 10 × 3.9mm.
S31：By the Piezoelectric anisotropy structure after polarization along being cut perpendicular to the direction of piezoelectric thin layer and cut surface, obtain
Piezoelectric fabric composite bed after polarization.
The 2-2 type Piezoelectric anisotropy structures of polarization in S30 are cut along vertical piezoelectric thin layer and parallel-polarized direction
Cut, cutting spacing can be 0.3mm, and acquisition size is the piezoelectric fabric composite bed after 10mm × 3.9mm × 0.3mm polarization.
S32：Flexible interdigital electrode is prepared by single-layer printed circuit plate technique.
Preferably, flexible interdigital electrode is prepared using printed-board technology, wherein, flexible substrate material can be polyamides
Imines, electrode material can be metallic copper, and it can be 1mm to refer to electrode centers spacing, and electrode width can be 0.1mm, and electrode is thick
Degree can be 0.02mm.
S33：During flexible interdigital electrode with the encapsulation of the piezoelectric fabric composite bed after polarization, keep flexible interdigital
The interface of Piezoelectric anisotropy module after the finger center lines of electrodes of electrode and adjacent polarization is in one plane.
Piezoelectric fabric composite bed after the polarization of gained in step S31 and step S32 and flexible interdigital electrode are sealed
Fill, in encapsulation process, keep the finger center lines of electrodes of interdigital electrode flat at one with the interface of adjacent 2-2 types Piezoelectric anisotropy module
On face.
S34：The two sides of piezoelectric fabric composite bed after polarization is filled according to mirror symmetrical structure by polymer latex fluid-tight
Flexible interdigital electrode, obtain modular piezoelectric fibre composite material.
Therefore, encapsulation is completed to obtain modular piezoelectric fibre composite material.
The preparation method of modularization piezoelectric fibre composite material provided in an embodiment of the present invention can be easily achieved piezoelectricity
The preparation of fiber composite, avoiding traditional preparation methods must use when preparing continuous fiber piezoelectric fibre composite material
The problem of large scale piezoelectricity block or thin layer do raw material, overcome piezoelectric fabric in conventional piezoelectric fibrous composite preparation process
The problems such as uneven and stress concentration that polarizes, by modular operation, piezoelectric fibre composite material length can be easily achieved
Seriation.
In the present embodiment, the preparation method of piezoelectric fibre composite material can realize the uniform of piezoelectric fabric in composite
Polarization, the length of piezoelectric fibre composite material can be adjusted by modular mode, and strengthen composite pliability and
Stability, the preparation efficiency of piezoelectric fibre composite material is effectively improved, meet piezoelectric fibre composite material answering in more areas
With needs.
Embodiment three：
A kind of piezoelectric fibre composite material provided in an embodiment of the present invention, the piezoelectric fibre composite material can be by as described above
The preparation method of the piezoelectric fibre composite material that embodiment one or embodiment two provide and manufactured material.
The present embodiment can be using PZT as piezoelectric phase, and epoxy resin is polymer phase, can use such as above-mentioned embodiment one or
The preparation method for the piezoelectric fibre composite material that embodiment two provides prepares gradient-structure piezoelectric fabric composite construction layer.
As the another embodiment of the present embodiment, the preparation method of piezoelectric fibre composite material can also be according to Fig. 3
Mode carry out.
As shown in figure 3, from top to bottom, piezoelectric thin layer 1 is alternately stacked with polymer foil 2, control outermost layer is piezoelectricity
Thin layer 1, one layer of polymeric glue is uniformly coated with the surface adjacent with piezoelectric thin layer 1 of polymer foil 2, then to lamination
Structure carries out cure under pressure, obtains unpolarized Piezoelectric anisotropy structure 3 or unpolarized 2-2 types Piezoelectric anisotropy structure.
Unpolarized 2-2 types Piezoelectric anisotropy structure is cut along stacking direction, obtains the Piezoelectric anisotropy of different-thickness
Module 4.As a preferred scheme, Piezoelectric anisotropy module 4 can also be 2-2 type Piezoelectric anisotropy modules, in 2-2 type Piezoelectric anisotropies
Covering electrodes and polarized on the cut surface 5 of module, and through-thickness is polarized, and electrode layer is disposed after the completion of polarization.Wherein, it is thick
Spend for perpendicular to the distance of cut direction.
2-2 type Piezoelectric anisotropy modules after polarization are alternately stacked arrangement according to polarised direction, on adjacent surface
Even coating one layer of polymeric glue, then carries out molded curing by laminated construction, obtains the 2-2 type Piezoelectric anisotropy structures of polarization.
2-2 type Piezoelectric anisotropy structures after polarization are cut along vertical piezoelectric thin layer 1 and parallel-polarized direction, after being polarized
Piezoelectric fabric composite bed 6.Therefore, as shown in figure 4, the piezoelectric fabric composite bed 6 after polarization includes piezoelectric fabric 11 with gathering
Compound fiber 22.
As shown in figure 4, flexible interdigital electrode 7 is prepared using single-layer printed circuit plate technique, electrode centers spacing with
The thickness of Piezoelectric anisotropy module 4 is consistent, scope 0.1-5mm.
The piezoelectric thin layer 1 of dimension series is prepared using patterning method or the tape casting, its thickness range is 0.050-2mm, its
His size is unlimited.Prepare the polymer foil 2 of dimension series using die pressing, its thickness range is 0.01-2mm, other chis
It is very little unlimited.
Piezoelectric ceramics can be any one in the piezoelectric ceramic body such as PZT or barium titanate piezoelectric ceramics (abbreviation BT) system.
Piezoelectric monocrystal can also be the piezoelectricity lists such as PMN-PT (abbreviation P MNT) or lead zinc niobate-lead titanates (abbreviation PZNT)
It is arbitrary a kind of in crystal system.
Polymer foil 2 or polymer glue composition are identical, can be the heat such as epoxy resin, phenolic resin or polyester resin
Any one in solidity polymer.The length of piezoelectric fabric composite bed can be the multiple of 2-2 Piezoelectric anisotropy module thickness, model
Enclose for 0.2-100mm.Wherein, the length of piezoelectric fabric composite bed is the direction along fiber axis.The thickness of piezoelectric fabric composite bed
Used knife is away from being adjusted when can be cut according to 2-2 types Piezoelectric anisotropy structure after polarization, scope 0.1-2mm.
The finger center lines of electrodes of flexible interdigital electrode 7, interface is pole between adjacent chopped fiber with piezoelectric fabric composite bed
The interface at 2-2 Piezoelectric anisotropy module bonds after change, in a plane.
As shown in figure 4, piezoelectric fibre composite material is by piezoelectric fabric composite bed and two parts institute group of flexible interdigital electrode 7
Into preparing piezoelectric fabric composite bed by the way of block combiner, adopted on piezoelectric fabric composite bed two sides with mirror symmetrical structure
Flexible interdigital electrode 7 is filled with polymer latex fluid-tight, that is, obtains piezoelectric fibre composite material.Wherein, interdigital electrode includes upper interdigital
Electrode 71 and lower interdigital electrode 72.
In the present embodiment, the making by small size 2-2 type Piezoelectric anisotropy modules is multiple dimensioned, composite adjustable in length
The wide piezoelectric fibre composite material of scope, realize the controllable precise of piezoelectric fibre composite material structural parameters.By adjusting piezoelectricity
The width of piezoelectric fabric 11, adjustable extent 0.050-2mm in the thickness control composite of thin layer 1.By adjusting polymer thin
The width of polymer fiber 22, adjustable extent 0.01-2mm in 2 thickness control composite of layer.By adjusting cutter away from control
The thickness of piezoelectric fabric composite bed processed controls the thickness of 2-2 type Piezoelectric anisotropy modules in 0.1-5mm models in the range of 0.1-2mm
In enclosing.Pass through the length for the controllable quantity composite for adjusting 2-2 type Piezoelectric anisotropy modules, adjustable extent 0.2-100mm.
Unless specifically stated otherwise, part and the relative step of step, the digital table otherwise illustrated in these embodiments
Refer to up to formula sum and do not limit the scope of the invention.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description
With the specific work process of device, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.
It is any to refer specifically to be construed as merely exemplary in all examples being illustrated and described herein, without
It is that therefore, other examples of exemplary embodiment can have different fingers as limitation.
Flow chart and block diagram in accompanying drawing show system, method and the computer journey of multiple embodiments according to the present invention
Architectural framework in the cards, function and the operation of sequence product.At this point, each square frame in flow chart or block diagram can generation
The part of one module of table, program segment or code, a part for the module, program segment or code include one or more use
In the executable instruction of logic function as defined in realization.It should also be noted that marked at some as in the realization replaced in square frame
The function of note can also be with different from the order marked in accompanying drawing generation.For example, two continuous square frames can essentially base
Originally it is performed in parallel, they can also be performed in the opposite order sometimes, and this is depending on involved function.It is also noted that
It is the combination of each square frame and block diagram in block diagram and/or flow chart and/or the square frame in flow chart, can uses and perform rule
Fixed function or the special hardware based system of action are realized, or can use the group of specialized hardware and computer instruction
Close to realize.
Piezoelectric fibre composite material provided in an embodiment of the present invention, the piezoelectric fibre composite material provided with above-described embodiment
Preparation method there is identical technical characteristic, so can also solve identical technical problem, reach identical technique effect.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that instruction or hint relative importance.
Finally it should be noted that：Embodiment described above, it is only the embodiment of the present invention, to illustrate the present invention
Technical scheme, rather than its limitations, protection scope of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those within the art that：Any one skilled in the art
The invention discloses technical scope in, it can still modify to the technical scheme described in previous embodiment or can be light
Change is readily conceivable that, or equivalent substitution is carried out to which part technical characteristic；And these modifications, change or replacement, do not make
The essence of appropriate technical solution departs from the spirit and scope of technical scheme of the embodiment of the present invention, should all cover the protection in the present invention
Within the scope of.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (10)
- A kind of 1. preparation method of piezoelectric fibre composite material, it is characterised in that including：Piezoelectric thin layer and polymer foil are alternately stacked arrangement, and the coated polymer glue on adjacent surface, obtain first Laminated construction；First laminated construction is solidified, obtains unpolarized Piezoelectric anisotropy structure；The unpolarized Piezoelectric anisotropy structure is cut along stacking direction, obtains Piezoelectric anisotropy module；Electrode is covered on the cut surface of the Piezoelectric anisotropy module and is polarized, the Piezoelectric anisotropy module after being polarized；By the Piezoelectric anisotropy module after several described polarization along the direction stacked arrangement perpendicular to the cut surface, and adjacent Coated polymer glue on surface, obtain the second laminated construction；Second laminated construction is solidified, the Piezoelectric anisotropy structure after being polarized；Piezoelectric anisotropy structure edge after the polarization is cut perpendicular to the direction of the piezoelectric thin layer and the cut surface, Piezoelectric fabric composite bed after being polarized；Flexible interdigital electrode and the piezoelectric fabric composite bed after the polarization are packaged, obtain piezoelectric fibre composite material.
- 2. the preparation method of piezoelectric fibre composite material according to claim 1, it is characterised in that described that piezoelectricity is thin Layer is alternately stacked arrangement, and the coated polymer glue on adjacent surface with polymer foil, before obtaining the first laminated construction, Also include：Piezoelectric ceramics or piezoelectric monocrystal thin layer are prepared by patterning method or the tape casting, obtain the piezoelectric thin layer.
- 3. the preparation method of piezoelectric fibre composite material according to claim 1, it is characterised in that described that piezoelectricity is thin Layer is alternately stacked arrangement, and the coated polymer glue on adjacent surface with polymer foil, before obtaining the first laminated construction, Also include：Thermosetting resin is prepared into by the polymer foil by die pressing.
- 4. the preparation method of piezoelectric fibre composite material according to claim 1, it is characterised in that the unpolarized pressure The outermost layer of electric composite construction is the piezoelectric thin layer.
- 5. the preparation method of piezoelectric fibre composite material according to claim 1, it is characterised in that described in the piezoelectricity Electrode is covered on the cut surface of composite module and is polarized, the Piezoelectric anisotropy module after being polarized, is specifically included：One layer of unburned silver electrode is covered on the cut surface of the Piezoelectric anisotropy module, and along perpendicular to the direction of the cut surface Polarized；The clearing electrode layer after polarization, the Piezoelectric anisotropy module after being polarized.
- 6. the preparation method of piezoelectric fibre composite material according to claim 1, it is characterised in that described by several institutes The Piezoelectric anisotropy module after polarization is stated along the direction stacked arrangement perpendicular to the cut surface, and polymerization is coated on adjacent surface Composition glue liquid, the second laminated construction is obtained, is specifically included：Direction stacked arrangement by the Piezoelectric anisotropy module edge after several described polarization perpendicular to the cut surface, and it is adjacent The polarised direction of Piezoelectric anisotropy module after the polarization is opposite；Coated polymer glue on the surface of Piezoelectric anisotropy module after the adjacent polarization, obtain the second laminated construction.
- 7. the preparation method of piezoelectric fibre composite material according to claim 1, it is characterised in that it is described will be flexible interdigital Electrode is packaged with the piezoelectric fabric composite bed after the polarization, before obtaining piezoelectric fibre composite material, in addition to：The flexible interdigital electrode is prepared by single-layer printed circuit plate technique.
- 8. the preparation method of piezoelectric fibre composite material according to claim 1, it is characterised in that the interdigital electricity of flexibility The flexible substrate material of pole is polyimides；The electrode material of the flexible interdigital electrode is metallic copper.
- 9. the preparation method of piezoelectric fibre composite material according to claim 1, it is characterised in that it is described will be flexible interdigital Electrode is packaged with the piezoelectric fabric composite bed after the polarization, is obtained piezoelectric fibre composite material, is specifically included：During the encapsulation of piezoelectric fabric composite bed after flexible interdigital electrode and the polarization, keep the flexibility interdigital The interface of Piezoelectric anisotropy module after the finger center lines of electrodes of electrode and the adjacent polarization is in one plane；The two sides of piezoelectric fabric composite bed after the polarization passes through described in polymer latex fluid-tight dress according to mirror symmetrical structure Flexible interdigital electrode, obtain modular piezoelectric fibre composite material.
- 10. piezoelectricity made of a kind of preparation method of piezoelectric fibre composite material by as described in claim any one of 1-9 Fibrous composite.
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